Entries |
Document | Title | Date |
20080196723 | Breath responsive powered air-purifying respirator - A system for regulating the airflow to a closed environment using feedback control for the position of a control valve and blower speed. The system provides a control apparatus that regulates airflow to a closed environment, such as the mask of a breathing apparatus, to ensure sufficient breathing air for a wearer of such mask. In order to provide fast response to a change in condition in the breathable environment, the airflow regulator includes a valve control and a blower control. | 08-21-2008 |
20080196724 | Gas Supply Device for Sleep Apnea - An apparatus is provided for controlling air supplied under pressure to a patient suffering from sleep disorders such as apnoea. The apparatus measures and/or calculates the inspiratory air flow, volume and pressure to the airway. Controlled pressurized air is supplied to the patient's upper anatomical airway, wherein the apparatus measures the air flow and pressure to the airway. The apparatus determines whether to increase or decrease the pressure to the patient's airway based on a determination of one or more factors, such as the occurrence of hypopnoea, hyperventilation, obstructive or central apnoea, air leakage and acoustical vibrations. Occurrences of events representing a sleep problem may be stored by the apparatus and retrieved by a clinician at a later date. | 08-21-2008 |
20080202527 | PROVIDING AUTOMATED OR MANUAL GUIDANCE ON DYNAMIC PATIENT POSITIONING BASED ON MEASURED VARIABLES FOR VENTILATION CONTROL - Methods and systems that incorporate automated or manual control of ventilation and kinetic rotation therapy are provided. In one exemplary embodiment, an artificial ventilator is used to artificially ventilate one of the patient's lungs, the status of the artificially ventilated lung is determined by measuring one or more ventilation status measures, and one or more of the ventilation status measures is used to provide feedback for controlling the positioning of the patient. In some exemplary embodiments, the feedback is used for automated control of the positioning of the patient, while in other exemplary embodiments, the feedback is used as guidance for manual control of the positioning of the patient. | 08-28-2008 |
20080202528 | Pressure Support System with Automatic Comfort Feature Modification - A pressure support system that delivers a flow of gas to a patient's airway via a pressure generating system and a patient circuit. A controller receives a treatment set point from an input source and determines an adjusted treatment set point based on the treatment set point and a comfort feature function, which in one embodiment, is not based on a physiological condition of such a patient. In another embodiment, the controller provides a respiratory treatment therapy during a therapy session based on the treatment set point and the comfort feature, which is modified automatically during a therapy session without user intervention based on a comparison of the treatment set point to a treatment set point variable. The controller controls the operation of the pressure generating system based on the adjusted treatment set point or the combination of the treatment set point and the comfort feature. | 08-28-2008 |
20080210236 | Tubing management system - A tubing management system for a CPAP system includes a pillow including at least one port through an interior portion thereof. Each port includes an inlet and an outlet that is adapted to be coupled to an air delivery conduit to allow the air delivery conduit to be routed through the interior portion. | 09-04-2008 |
20080216834 | Method and Apparatus for Delivering a Dose of a Gaseous Drug to a Patient - A method and device that can vary the dose of a gaseous drug provided to a patient based on a comparison of the normal resting breath rate for each individual patient and the current breath rate of the patient so that the patient does not become desaturated. | 09-11-2008 |
20080216835 | STANDALONE CPAP DEVICE AND METHOD OF USING - A continuous positive airway pressure (CPAP) device is provided. The CPAP device includes the feature that the blower is mounted directly to the mouthpiece or the nose mask, thus eliminating the need for an air tube to convey the pressurized air from the blower to the user's mouth or nose. The CPAP device may operate in continuous mode, bi-phase mode, or automatic mode. The CPAP device may include a capability to regulate pressure, temperature, and/or relative humidity of the pressurized air. The CPAP device may collect and store user respiration data, possibly including recordation of snoring noises. | 09-11-2008 |
20080230063 | SETTING INSPIRATORY TIME IN MANDATORY MECHANICAL VENTILATION BASED ON PATIENT PHYSIOLOGY, SUCH AS FORCED INHALATION TIME - A method of setting inspiratory time in pressure controlled mechanical ventilation sets a subject's inspiratory time based on the subject's forced inhalation time. Another determines the subject's forced inhalation time and sets the subject's inspiratory time based on the determination. | 09-25-2008 |
20080230064 | SETTING INSPIRATORY TIME IN MANDATORY MECHANICAL VENTILATION BASED ON PATIENT PHYSIOLOGY, SUCH AS WHEN FORCED INHALATION FLOW CEASES - A method of setting inspiratory time in pressure controlled mechanical ventilation sets a subject's inspiratory time based on when the subject's forced inhalation flow ceases. Another determines when the subject's forced inhalation flow ceases and sets the subject's inspiratory time based on the determination. | 09-25-2008 |
20080230065 | METHOD AND SYSTEM FOR MONITORING PATIENT'S BREATHING ACTION RESPONSE TO CHANGES IN A VENTILATOR APPLIED BREATHING SUPPORT - A method for monitoring patient's breathing action response to changes in a ventilator applied breathing support, where a) a desired target range for a breathing gas indication of O2-consumption for the patient is first determined, after which b) the ventilator applied breathing support is changed, and c) the breathing gas indication of O2-consumption of said patient is measured and d) compared with the desired target range. At least the steps b)-d) are repeated to maintain the measured breathing gas indication of O2-consumption of said patient within the desired target range. A system for monitoring a patient's breathing action is also provided. | 09-25-2008 |
20080236584 | Gas Conserving Device - An electronic oxygen conserving device for controlling a flow of oxygen from an oxygen storage container to a user. When a conserve setting is selected, a flow of oxygen travels through an oxygen regulating valve that has an open state and a closed state. A temporary electrical charge or current is provided to the oxygen regulating valve during the initial inhalation of oxygen by an individual, opening the regulating valve opens to delivery oxygen to the user. The oxygen regulating valve remains open even after termination of the electric current. After a predetermined timed delivery dose or upon exhalation by the individual, a subsequent temporary electric charge or current is provided to oxygen regulating valve, closing the regulating valve closes to prevent delivery of oxygen to the user, thus conserving oxygen. The oxygen regulating valve remains closed even after termination of the subsequent electric current. | 10-02-2008 |
20080251078 | Systems and methods for visualizing pressures and pressure responses to sleep-related triggering events - Systems and methods for visualizing patient treatment data collected while a patient suffering from sleep-disordered breathing is treated are provided. For example, according to certain example embodiments, a PAP device for treating a patient suffering from sleep-disordered breathing is provided. A processor may be set or programmed to generate a signal indicative of a triggering event. A flow generator may be configured to provide a supply of pressurized breathable gas to the patient based at least in part on the signal. Recording programmed logic circuitry may be provided to record in a data log pressures provided during patient treatment and triggering events occurring during patient treatment. Visualizing programmed logic circuitry in communication with the PAP device may be configured to read the data log and generate a visual depiction of provided pressures over time. Triggering events may include, for example, one or more of apnea, hypopnea, flattening, snore, etc. | 10-16-2008 |
20080257349 | Multilevel Ventilator - A method and apparatus for detecting breathing disorders and controlling a breathing ventilator using an artificial neural network working on signals indicative of a patient's physiological status. Preferably the artificial neural network works on a signal indicative of the pressure or flow of supplied breathing gas divided into two or more intervals ( | 10-23-2008 |
20080264419 | INTEGRATED VENTILATOR WITH CALIBRATION - An integrated respiratory ventilation system and method for its calibration is described. The system includes a ventilator having air conduits, transducers adapted to emit signals proportional to the level of air pressure or air flow within the air conduits, and inspiration, expiration and exhaust ports. A processor-controlled calibrator is in communication with one or more of the air conduits. A preferred calibrator includes a water-filled outer column and a vertically aligned inner column extending into the outer column, the inner column having an upper end in communication with at least one of the ports. A processor controls the opening and closing of the ports and the level of air pressure in, and air flow from, the inner column to measure the level of transducer signals at two known pressures and two known flows. The processor uses the measured transducer signals to calibrate the transducer. | 10-30-2008 |
20080276939 | Delta Flow Pressure Regulation - A method, system, apparatus, and computer program for detecting breathing pattern changes and controlling a mechanical ventilator in accordance to changes of breathing air flow thus reducing the work of breathing for the patient. | 11-13-2008 |
20080283061 | Energy Trigger - A method and apparatus for facilitating breathing using a mechanical breathing gas ventilator is presented. The patient effort is deduced from a measured flow signal and analyzed with respect to the energy in the breathing system comprising the mechanical ventilator and the patient. When a predetermined energy threshold has been reached the ventilator responds to the breathing pattern change. | 11-20-2008 |
20080283062 | Respiratory Component Measurement System - A respiratory component measurement system that includes an airway adapter adapted to be placed in fluid communication with an airway of a patient and a sensor element in physical communication with the airway adapter. The sensor element is adapted to detect an orientation related characteristic of the airway adapter, a motion related characteristic of the airway adapter, or both. A respiratory component sensor is also adapted to be disposed on the airway adapter so as to measure a characteristic associated with a flow of gas through the airway adapter. | 11-20-2008 |
20080295840 | PROCESS FOR OPERATING A RESPIRATOR AND/OR ANESTHESIA DEVICE IN THE APRV MODE WITH THE %PEF CRITERION AND A DEVICE OPERATED CORRESPONDINGLY - A process for operating a respirator and/or anesthesia device in the APRV mode with the % PEF criterion which includes a detection of a spontaneous expiratory effort by the patient and initiation of a pressure release phase when the detected spontaneous expiratory effort by the patient falls within a predetermined trigger window (Tf | 12-04-2008 |
20080302364 | System and Method for Treating Ventilatory Instability - A therapy system adapted to treat a patient's ventilatory instability using a ventilatory therapy, a gas modulation therapy, or both. The algorithm implemented by the therapy system monitors the ventilatory instability, such as Cheyne Stokes Respiration (CSR), mixed apneas, CPAP emergent apneas, and complex sleep disordered breathing (CSDB) and treats the ventilatory instability. The algorithm also determine a reference point with respect to the ventilatory instability. The therapy delivery system initiate the treatment based on the reference point. | 12-11-2008 |
20080308104 | Ventilator - A ventilator intended to be connected to a patient for breathing therapy has a control unit having an input for receiving EMG signals from an EMG detector and an output for an EMG based control signal and a pneumatic unit for generating breathing gas flows dependent on the EMG based control signal is described. The ventilator has a detector for determining a parameter related to breathing dynamics for the patient, this detector being connected to the control unit and control unit controlling the pneumatic unit dependent on the parameter related to breathing dynamics in the case of loss of EMG signals at the input. | 12-18-2008 |
20080308105 | Computer Controlled Cpap System with Snore Detection - A CPAP apparatus is provided that determines the presence of a snore by the simplified method of using filtered expiratory noise as the measure of intrinsic device noise and comparing that to filtered inspiratory noise. The filtering time constants for inspiratory and expiratory noise are adjusted such that treatment pressure does not cause false snore detection. | 12-18-2008 |
20080314385 | O2 - Controller - The invention relates to a device for the regulation of PEEP and FiO | 12-25-2008 |
20090007914 | Method and Apparatus for Resolving Upper Airway Obstruction, Resistance or Instability - A CPAP apparatus has a variable rise time (iii) from a base level of positive air pressure during expiration (EPAP) to a higher level during inspiration (IPAP). The rise time is adjusted in order to reduce obstruction, resistance or instability in the upper airway. | 01-08-2009 |
20090007915 | APPARATUS FOR REGULATING A MECHANICAL VENTILATION - The invention relates to a device, with which one is to prevent a patient who breathes on Ms own and who desires a lower CO | 01-08-2009 |
20090007916 | Method for operating an anesthesia or ventilation apparatus having a trigger function and devcie therefor - A method for operating an anesthesia/ventilation apparatus ( | 01-08-2009 |
20090020121 | METHODS FOR PROVIDING EXPIRATORY PRESSURE RELIEF IN POSITIVE AIRWAY PRESSURE THERAPY - A method of operating a CPAP apparatus in which the interface pressure is controlled to rapidly drop at the start of expiration by an expiratory relief pressure (ERP) that is independent of instantaneous respiratory flow, following which the pressure rises to an inspiratory level at or shortly before the end of expiration, or at the onset of an expiratory pause, if any. The ERP is an increasing function of the inspiratory pressure. The expiratory pressure follows a template that is a function of the expected expiration time, the magnitude of the template being equal to the ERP. The current estimated proportion of expiration is determined by comparing the expiration time of the breath in progress to low-pass filtered expiratory durations measured for a number of the preceding breaths. | 01-22-2009 |
20090020122 | Respiratory device for treating obstructive sleep apnea and method for controlling said device - A respirator device for use in treating obstructive sleep apnea is described, with a pressure generator for generating an artificial atmosphere having a treatment pressure, with a pressure regulating device for controlling the pressure generator, and with a respiratory tube with a breathing mask for supplying the artificial atmosphere generated by the pressure generator to a patient, which is characterized in that it has a control mechanism for the continuous determination of a pressure loss occurring over an airway resistance in the airways of the patient, and for the essentially proportional adjustment of the pattern of treatment pressure to the pattern of the determined pressure loss. | 01-22-2009 |
20090020123 | PROCESS AND SYSTEM FOR TRANSMITTING MONITORING STATES - A process and system are provided for transmitting monitoring states between respirators. The process includes the detection of and recording of monitoring states of a monitoring unit ( | 01-22-2009 |
20090025725 | TRANSIENT INTERVENTION FOR MODIFYING THE BREATHING OF A PATIENT - A method for modifying the breathing of a patient while the patient is experiencing sleep apnea, for example Cheyne Stokes breathing. An instantaneous pulmonary ventilation of a patient is monitored. Limit cycle behavior of the instantaneous pulmonary ventilation is identified. A transient intervention is applied to the patient during a phase of a limit cycle of the instantaneous pulmonary ventilation. The transient intervention has an effect on a breathing state of the patient. | 01-29-2009 |
20090038616 | Acclimatization therapy for first time users - Systems, methods, and/or apparatuses for acclimatizing a user to positive airway pressure (PAP) therapy are provided. Generally, a sub-therapeutic treatment pressure is provided initially. It may be ramped up to a full treatment pressure over the course of one or more therapy sessions. The pressure level may be ramped up based on, for example, sleep state, sleep phase, patient compliance with types of treatment (e.g. bilevel vs. CPAP, etc.), clinician input (either at the site, remotely, via pre-programmed smartcards, etc.), etc. Such techniques may be used alone or in combination. | 02-12-2009 |
20090038617 | ADMINISTRATION OF CPAP TREATMENT IN PRESENCE OF APNEA - CPAP treatment apparatus is disclosed having a controllable flow generator ( | 02-12-2009 |
20090050152 | Device and Method for Automatically Regulating Supplemental Oxygen Flow-Rate - Device and method for limiting adverse events during supplemental oxygen therapy are disclosed. In the present invention, the oxygen flow between a patient and an oxygen source is controlled with a valve such as a proportional solenoid capable of constraining flow-rates within a continuous range. The flow-rate of oxygen is accurately controlled in a closed-loop with flow-rate measurements. Measures of a patient's vital physiological statistics are used to automatically determine optimum therapeutic oxygen flow-rate. Controller signal filtering is disclosed to improve the overall response and stability. The control algorithm varies flow-rates to minimize disturbances in the patient feedback measurements. | 02-26-2009 |
20090050153 | TUBE SYSTEM FOR VENTILATION APPLIANCES - The invention relates to a three-arm tube system ( | 02-26-2009 |
20090050154 | METHOD AND APPARATUS FOR ADJUSTING DESIRED PRESSURE IN POSITIVE AIRWAY PRESSURE DEVICES - Systems and methods for adjusting a desired pressure in a positive airway pressure (PAP) device are provided. In one embodiment, the method includes: a) providing breathing gas under positive pressure to a patient via a PAP device based on current desired pressure, b) monitoring a characteristic of the breathing gas, patient, or PAP device indicative of respiration, c) creating a breathing cycle signal having a first level associated with inhalation and a second level associated with exhalation, the signal being based on the monitored respiration characteristic, d) performing an abnormal breathing check based on the monitored respiration characteristic and the breathing cycle signal, and e) if abnormal breathing is detected, increasing the current desired pressure until a maximum desired pressure is reached, otherwise, decreasing the current desired pressure until a minimum desired pressure is reached. Several embodiments of an apparatus associated with the method are also provided. | 02-26-2009 |
20090050155 | DETERMINATION OF APNEA/HYPOPNEA DURING CPAP TREATMENT - CPAP treatment apparatus is disclosed having a controllable positive airway pressure device. A sensor generates a signal representative of patient respiratory flow that is provided to a controller. The controller is operable to determine the occurrence of an apnea from a reduction in respiratory airflow below a threshold determined from long term ventilation. When an apnea or hypopnea has occurred the calculation of the threshold is suspended until the end of that event. | 02-26-2009 |
20090065004 | Parameter Optimization in Sleep Apnea Treatment Apparatus - The present invention includes a method and apparatus for the optimized treatment of obstructive sleep apnea. The present invention includes a pressure source configured to provide positive airway pressure to a patient who is resting at home. The pressure source receives control signals from control electronics that define a pressure profile to be delivered to the patient. The control electronics select parameters to define the pressure profile based on factors such as a user selection, information received from a sensor, and/or a prescription. | 03-12-2009 |
20090078255 | Methods for pressure regulation in positive pressure respiratory therapy - Methods of positive pressure therapy are described. The methods increase the pressure delivered to a user from a sub-therapeutic pressure to a therapeutic pressure in one or more pressure steps sequenced to the user's breath intervals. | 03-26-2009 |
20090078256 | METHOD AND APPARATUS FOR IMPROVED FLOW LIMITATION DETECTION OF OBSTRUCTIVE SLEEP APNEA - In a respiratory apparatus for treatment of sleep apnea and other disorders associated with an obstruction of a patient's airway and which uses an airflow signal, an obstruction index is generated which detects the flattening of the inspiratory portion of the airflow. The flattening index serves as an obstruction index used to differentiate normal and obstructed breathing. The obstruction index is based upon comparison of values of airflow in different sectors of the inspiratory peak of the wave function and is particularly suitable for distinguishing M shaped or square shaped respiratory patters indicative of partially obstructed airways. | 03-26-2009 |
20090078257 | Auto-Titration of Positive Airway Pressure Machine With Feedback From Implantable Sensor - Systems and methods for detecting and treating an obstructive sleep apnea event are disclosed herein. The systems and methods may use an electrical output generating ionic polymer metal composite sensor attached to a region in an airway passage in an oral cavity. The electrical output may be wirelessly transmitted as a signal for indication of an obstructive sleep apnea event. The signal may be further analyzed by a positive airway pressure system for treatment of the obstructive sleep apnea event. | 03-26-2009 |
20090084382 | CATHETER POSITIONING METHOD AND COMPUTERIZED CONTROL UNIT FOR IMPLEMENTING THE METHOD - A control unit for a ventilator is arranged to receive, from each of a number of electrode pairs on an esophageal catheter a bioelectric signal having an ECG component. The control unit has a calculating unit that determines the ECG component of each of the bioelectric signals and a position unit that determines the position of the catheter in relation to the patient's diaphragm based on a comparison the amplitudes of ECG components of the bioelectric signals. | 04-02-2009 |
20090095299 | Sleep inducing apparatus for a CPAP machine - A continuous positive airway pressure (“CPAP”) machine has an electrically driven air pump, an air hose coupled to the air pump, and a air mask coupled to the air hose and adapted to be applied to a head of a patient to supply a stream of air to breathing passages of said patient while the patient is sleeping. A device, attached to said machine, is provided for inducing sleep in said patient. | 04-16-2009 |
20090107498 | Respiratory Equipment and Method for Controlling Respiratory Equipment - The invention relates to a method and a device for operating or controlling respiratory equipment. According to the invention, a respiratory gas source, which can be connected to a patient interface, is coupled to a control unit. The control unit is configured to specify at least two different respiratory modes. The various respiratory modes are determined, selected and used for at least some respiratory disorders according to a current patient-specific requirement. The control unit is configured to automatically execute the control operations. | 04-30-2009 |
20090107499 | Expiratory Volume Reservoir for a Ventilator Patient Circuit - A ventilation system providing inspiratory air to a patient and receiving expiratory air from the patient. The ventilation system comprises a ventilator operable between an inspiratory phase and an expiratory phase of a respiration cycle. The ventilator has an inspiratory outlet for providing inspiratory air to a patient during the inspiratory phase and an expiratory inlet for receiving expiratory air from the patient during the expiratory phase. A patient circuit is configured in fluid communication with the lungs of a patient. The patient circuit conveys inspiratory air from the inspiratory outlet to a patient's lungs during the inspiratory phase and conveys expiratory air from the patient's lungs to the expiratory inlet during the expiratory phase. A flow transducer is provided in fluid communication with the patient circuit. The flow transducer is configured to detect a minimum volume of expiratory air in the patient circuit during the expiratory phase of a respiratory cycle. An elastic reservoir is provided in fluid communication with the patient circuit and the flow transducer. The elastic reservoir is configured to expand to a first volume during the inspiratory phase of the respiratory cycle and contract to a second volume during the expiratory phase of the respiratory cycle. A volume difference between the first volume and the second volume is at least equal to the minimum volume. | 04-30-2009 |
20090107500 | Portable Oxygen Concentrator System and Method Including Concentrated Oxygen Flow Delivery - A portable oxygen concentrator system weighing 4-20 pounds adapted to be readily transported by a user and for delivering oxygen to lungs of the user includes a rechargeable energy source; a concentrator powered by said energy source and adapted to convert ambient air into concentrated oxygen gas for said user; and a control unit that controls the concentrator to deliver a flow rate based on at least one of a Body Temperature Pressure Dry (BTPD) condition, a Body Temperature Pressure Saturated with water (BTPS) condition, and a condition between BTPD and BTPS, where relative humidity is 0-100%, to maintain a constant fraction of inspired oxygen (FI02) in the lungs of the user. | 04-30-2009 |
20090107501 | SYSTEM AND METHOD OF MONITORING RESPIRATORY AIRFLOW AND OXYGEN CONCENTRATION - Described is system and method of monitoring respiratory airflow and oxygen concentration. The system may include a first sensor producing data corresponding to an airflow in a respiratory system of a body; a second sensor producing data corresponding to an oxygen concentration in the body; a generator supplying a pressurized airflow; an oxygen source supplying oxygen; a conduit through which the pressurized airflow and oxygen are delivered to the respiratory system; and a processing arrangement for processing the data from the first and second sensors and for controlling the generator and the oxygen source based on the processed data. | 04-30-2009 |
20090107502 | Method and device for monitoring and improving patient-ventilator interaction - Method and apparatus for non-invasively determining the time onset (T | 04-30-2009 |
20090114222 | PROCESS FOR OPERATING A RESPIRATOR OR ANESTHESIA DEVICE IN THE APRV MODE TAKING INTO ACCOUNT THE IMPEDANCE AND/OR THE IMPEDANCE CHANGE - A process is provided for operating a respirator and/or anesthesia device in the APRV mode with at least one pressure release phase with the step of setting a first point in time for terminating the pressure release phase. The process includes measuring the electrical impedance and/or impedance change of the lungs and setting the first point in time such that the measured impedance and/or impedance change are taken into account. A device is provided for carrying out the process according to the present invention. | 05-07-2009 |
20090114223 | METHOD AND SYSTEM TO CONTROL MECHANICAL LUNG VENTILATION - The present disclosure refers to a system to control mechanical lung ventilation with volume band, more particularly a system to manage respiratory cycles in patients. Preferably, said respiratory cycles are controlled under pressure, so that the volumes as inspired by the patient are maintained within a volume range, comprising a lower volume limit and an upper volume limit, which are previously determined. | 05-07-2009 |
20090114224 | METHOD FOR AUTOMATICALLY CONTROLLING A VENTILATION OR BREATHING SYSTEM AS WELL AS A CORRESPONDING VENTILATION OR BREATHING SYSTEM - A method is provided for automatically controlling a ventilation or breathing system with a ventilation unit ( | 05-07-2009 |
20090126736 | In-home medical data collection and reporting system - The invention is an oxygen system, including a home care system, for patients who require supplemental oxygen. Built around an intelligent portable oxygen concentrator, the system incorporates a variety of patient monitoring and reporting function enabled by the processing and communications channels built into the concentrator. | 05-21-2009 |
20090139523 | System and Method for Automated Titration of Continuous Positive Airway Pressure Using an Obstruction Index - Described is a system including an air pressure supply arrangement, a sensor and a titration device. The air pressure supply arrangement provides air pressure to a patient's airways. The sensor detects input data corresponding to a patient's breathing patterns of a plurality of breaths. The titration device receives and analyzes the input data to determine existence of breathing disorder and corresponding characteristics. The titration device generates output data for adjusting the air pressure supplied to the patient as a function of an index of abnormal respiratory events included in the input data. | 06-04-2009 |
20090151724 | METHODS AND DEVICES FOR PROVIDING INSPIRATORY AND EXPIRATORY FLOW RELIEF DURING VENTILATION THERAPY - Respiratory support and/or controlled mechanical ventilation of a patient are provided. A ventilation apparatus may include a ventilator, a transtracheal prosthesis, and a respiratory relief device. The transtracheal prostheses and ventilation catheter may be arranged such that the patient can breathe freely through the upper airway and/or the tracheal prostheses. Respiratory sensors may measure a breathing rate, lung pressure, airway pressure, or a combination thereof. Pulses of gas may be provided to the patient through the ventilation catheter during inspiration. The pulses may have a first volume while the patient breathes normal and a second volume when the sensors detect a cessation of breathing or reduction in breathing volume. The second volume may be provided at 1-5 times the normal breathing rate, with a volume 25-500% times the first volume, or both. | 06-18-2009 |
20090151725 | Parameter Optimization in Sleep Apnea Treatment Apparatus - The present invention includes a method and apparatus for the optimized treatment of obstructive sleep apnea. The present invention includes a pressure source configured to provide positive airway pressure to a patient who is resting at home. The pressure source receives control signals from control electronics that define a pressure profile to be delivered to the patient. The control electronics select parameters to define the pressure profile based on factors such as a user selection, information received from a sensor, and/or a prescription. | 06-18-2009 |
20090159082 | METHOD OF AUTOMATICALLY CONTROLLING A RESPIRATION SYSTEM AND A CORRESPONDING RESPIRATOR - A method of automatically controlling a respiration system for proportional assist ventilation with a control device and with a ventilator. An electrical signal is recorded by electromyography with electrodes on the chest in order to obtain a signal u | 06-25-2009 |
20090165797 | AIRWAY SYSTEM, OPERATING MEHTOD THEREOF AND VENTILATOR OR ANESTHETIC MACHINE HAVING SUCH SYSTEM - The present invention discloses an airway system and operating method thereof in the medical equipments such as a ventilator and an anesthetic machine. The airway system comprises: a respiratory circuit ( | 07-02-2009 |
20090165798 | METHOD FOR IMPROVING CONTROL AND DETECTION PRECISION OF TIDAL VOLUME BY A CALCULATION INTRODUCED WITH R VALUE - The present invention discloses a method for improving control and detection precision of tidal volume by introducing R value, comprising the steps of: a plateau pressure Pplate is used to calculate a system compliance C with C=ΔV/(Pplate−PEEP); V | 07-02-2009 |
20090173347 | PRESSURE SUPPORT VENTILATION OF PATIENTS - A methodology and apparatus for determining ventilator settings including an end expiratory pressure setting, pressure swing, resistive unloading and target ventilation for delivering ventilatory support based upon generalized patient ventilation characteristics and/or disease classifications. An apparatus may be programmed with the instructions to accomplish the methodology interactively by prompting the user/physician during setup and calculating settings based upon measurements or input responses. Pre-assigned values associated with ventilation characteristics or disease classifications may be combined with a base pressure value or measured values to provide patient customized settings or adjustments to determine pressure levels for the delivery of ventilatory support. | 07-09-2009 |
20090188502 | ENERGY RELIEF CONTROL IN A MECHANICAL VENTILATOR - The present invention relates to a solution for controlling the pressure/flow of breathing gas to a mechanical ventilator ( | 07-30-2009 |
20090194109 | CPAP INTERFACE AND BACKUP DEVICES - Described herein are combined active PAP/passive EPAP interface devices to transmit positive air pressure from a PAP source to the user, but provide passive EPAP when the PAP source is disabled. These interface device may continue to provide benefit to the user even if the PAP source becomes disconnected or otherwise fails. The interface devices described herein include a passive EPAP airflow resistor configured to provide expiratory positive airway pressure (“EPAP”). These interface devices may also include quick connects and/or disconnects for releasably connecting to the source of pressurized breathable gas, a quick release for disconnecting from the source of pressurized breathable gas, and an adhesive user interface region that connects the device the user's face. Also described are adapter for converting a PAP interface devices into combined active PAP/passive EPAP interface devices, and methods of using these devices. | 08-06-2009 |
20090199855 | SYSTEM AND METHOD FOR CONSERVING OXYGEN DELIVERY WHILE MAINTAINING SATURATION - A system and method, for maintaining a predetermined level of a treatment gas in a patient while conserving use of the treatment gas, comprising a source of the treatment gas, a sensing device for sensing a breathing cycle of a patient, a conserver for controlling intermittent supply of the treatment gas to the patient in response to the sensed breathing cycle. In a first mode, when the sensing device senses breathing, the treatment gas is intermittently supplied to the patient at a supply rate coordinated with the breathing cycle. In a second mode, when the sensing device is unable to sense breathing, the treatment gas is supplied to the patient at a second intermittent cycle, determined independently of the patient breathing cycle, which is selected to overlap an assumed patient breathing cycle such that at least a desired level of the treatment gas is maintained in the patient. | 08-13-2009 |
20090205662 | Method and apparatus for improving cpap patient compliance - A method of operating a device for treating sleep disordered breathing (SDB), wherein the device provides continuous positive airway pressure during sleep, includes applying a treatment pressure to a patient, monitoring the patient for speech output, generating a signal in response to detected speech of the patient, and, in response to the signal, reducing the treatment pressure applied to the patient. | 08-20-2009 |
20090205663 | CONFIGURING THE OPERATION OF AN ALTERNATING PRESSURE VENTILATION MODE - Systems and methods for configuring the operation of an alternating pressure ventilation mode are provided. According to one embodiment a configuration method includes monitoring gas flow between a patient and a ventilation system. Based on the monitoring, a peak expiratory flow rate (PEFR) is determined Information indicative of values of parameters of the ventilation mode are received, including a higher pressure setting, a lower pressure setting and a duration of the higher pressure setting. User input is also received indicative of a target percentage of PEFR at which the ventilation system should cycle from the lower pressure setting to the higher pressure setting. Based on the target percentage, a duration of the lower pressure setting is programmatically determined. Finally, the ventilation system is configured to automatically cycle between the higher and lower pressure setting at a predetermined flow based on the parameters and the duration of the lower pressure setting. | 08-20-2009 |
20090241954 | CONTROLLING THE OPERATION OF A RESPIRATORY GAS MONITOR - The invention concerns a method for controlling a respiratory gas monitor device, which typically comprises at least one respiratory gas analyzer, a gas sampling line, a gas pump for sucking sample(s) of respiratory gas from said gas sampling line, a power supply and a processing unit, and a pressure sensor pressure-connected to said gas sampling line and electrical-signal-connected to said processing unit. A minimum value and a maximum value in a signal from the patient are detected by said processing unit, and a difference between said minimum value and said maximum value is calculated, and is compared with a predetermined threshold value. If said calculated difference is below said threshold value said pump is switched off or kept non-operating by said processing unit, and if over said threshold value said pump is switched on or kept operating by said processing unit. | 10-01-2009 |
20090241955 | LEAK-COMPENSATED FLOW TRIGGERING AND CYCLING IN MEDICAL VENTILATORS - This disclosure describes systems and methods for compensating for inelastic and elastic leaks in a ventilation system. The disclosure describes a model-based enhancement to conventional flow triggering and cycling methodologies that improves the timing and patient work of flow-based triggering and cycling performance. The methods and systems described herein compensate for the leak condition and minimize additional effort a patient has to exert to generate the same patient synchrony and comfort level compared to no leak condition. One method described includes calculating an elastic leakage and an inelastic leakage based on current measurements of pressure and flow in the ventilation system and then estimating a leak-compensated lung flow using the inelastic and elastic leaks and pneumatic attributes of the patient-ventilator system. | 10-01-2009 |
20090241956 | METHOD FOR CONTROLLING DELIVERY OF BREATHING GAS TO A PATIENT USING MULTIPLE VENTILATION PARAMETERS - The disclosure provides a method for controlling the delivery of a breathing gas to a patient. The method may include regulating the fractional inspired oxygen (FiO | 10-01-2009 |
20090241957 | BREATHING ASSISTANCE SYSTEMS WITH LUNG RECRUITMENT MANEUVERS - The disclosure provides a method for controlling the delivery of a breathing gas to a patient including automatic lung recruitment maneuvers. The method may include regulating the FiO | 10-01-2009 |
20090241958 | METHOD FOR SELECTING TARGET SETTINGS IN A MEDICAL DEVICE - The disclosure provides a method for controlling the delivery of a breathing gas to a patient. The method may include regulating the delivery of the breathing gas delivered to the patient, determining a value for a first ventilation parameter, comparing the determined value of the first ventilation parameter to a pre-determined target value for the first ventilation parameter, automatically adjusting the breathing gas delivered to the patient in response to the comparison between the determined value of the first ventilation parameter and the pre-determined target value for the first ventilation parameter, and automatically determining a new target value for the first ventilation parameter based at least in part on the determined value of the first ventilation parameter. | 10-01-2009 |
20090260630 | Sleep inducing apparatus for CPAP machine - A continuous positive airway pressure (“CPAP”) machine has an electrically driven air pump, an air hose coupled to the air pump, and a air mask coupled to the air hose and adapted to be applied to a head of a patient to supply a stream of air to breathing passages of said patient while the patient is sleeping. A device, attached to said machine, is provided for inducing sleep in said patient. | 10-22-2009 |
20090272381 | APPARATUS FOR RESPIRATORY SUPPORT AND NON-INVASIVE DETECTION OF ALVEOLAR DERECRUITMENT FOR PATIENTS SUFFERING FROM RESPIRATORY FAILURE - There is described an apparatus ( | 11-05-2009 |
20090272382 | Method and Apparatus for Predicting Work of Breathing - A method of creating a non-invasive predictor of both physiologic and imposed patient effort from airway pressure and flow sensors attached to the patient using an adaptive mathematical model. The patient effort is commonly measured via work of breathing, power of breathing, or pressure-time product of esophageal pressure and is important for properly adjusting ventilatory support for spontaneously breathing patients. The method of calculating this non-invasive predictor is based on linear or nonlinear calculations using multiple parameters derived from the above-mentioned sensors. | 11-05-2009 |
20090288661 | ARRANGEMENT AND METHOD FOR SUPERVISING MEDICAL MONITOR - An arrangement for supervising a medical monitor. The arrangement for supervising the medical monitor comprises a measurement function having at least one measurement device to make at least one measurement for obtaining measurement information for monitoring one or more patient care signals. The arrangement for supervising the medical monitor also includes a supervision analyzer configured to communicate with the measuring function and to receive the measurement information. The supervision analyzer is adapted to obtain reference information and to compare the measurement information to the reference information to determine whether the measurement function is working properly. | 11-26-2009 |
20090293877 | METHOD AND APPARATUS FOR DETECTING AND QUANTIFYING INTRINSIC POSITIVE END-EXPIRATORY PRESSURE - The present invention describes a method and apparatus for detecting and quantifying intrinsic positive end-expiratory pressure (PEEPi) of a respiratory patient breathing with the assistance of a ventilator. A processing device receives respiratory airway data from one or more sensors adapted to non-invasively monitor a respiratory patient, calculates from the respiratory airway data two or more parameters that are indicative of or quantify intrinsic positive end-expiratory pressure of the patient, and generates a predicted quantitative value for intrinsic positive end-expiratory pressure based on the two or more parameters. The respiratory airway data is transformed into a predicted quantitative value for intrinsic positive end-expiratory pressure (PEEPi). | 12-03-2009 |
20090301488 | Method And Apparatus For Providing Positive Airway Pressure To A Patient - Methods and apparatus for treatment of medical disorders such as obstructive sleep apnea and congestive heart failure are disclosed. A method involves delivering pressurized air, oxygen or other breathing gas to a patient during a respiratory cycle, where pressure of the air is decreased according to an expiratory unloading factor during expiration. The timing and magnitude of the pressure change may be fully automated and responsive to feedback from a motor load sensor, optionally in combination with a pressure sensor. | 12-10-2009 |
20090301489 | RESPIRATORY GAS SUPPLY CIRCUIT TO FEED CREW MEMBERS AND PASSENGERS OF AN AIRCRAFT WITH OXYGEN - The invention relates to a respiratory gas supply circuit ( | 12-10-2009 |
20090301490 | SYSTEMS AND METHODS FOR DETERMINING PATIENT EFFORT AND/OR RESPIRATORY PARAMETERS IN A VENTILATION SYSTEM - Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a method for respiratory support is described that includes measuring a pressure, providing a measured pressure, measuring an inlet flow and an outlet flow, and providing a measured net flow. A relationship between a first value related to the measured pressure, a second value related to the measured net flow and a third value related to patient effort is used to provide a prediction of patient effort. An interim value is updated based at least in part on the prediction of the patient effort. | 12-10-2009 |
20090301491 | SYSTEMS AND METHODS FOR VENTILATION IN PROPORTION TO PATIENT EFFORT - Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a ventilation system is disclosed that includes a computer readable medium including instructions executable by a processor to receive a measured pressure value and a net flow value. A patient effort value is calculated based on a relationship between patient effort, the measured pressure value and the net flow value. The instructions are further executable to calculate a gas delivery metric that varies as a function of the patient effort value. Gas is then caused to be delivered consistent with the gas delivery metric. | 12-10-2009 |
20090301492 | METHOD AND DEVICE FOR DETERMINING THE PEEP DURING THE RESPIRATION OF A PATIENT - The invention relates to a device for the automated determination of the PEEP of a patient. Said device comprises sensors and a suitable electronic system for determining a pressure-volume characteristic curve during a P/V manoeuvre. The electronic system is designed in such a way as to generate, specifically in terms of breathing pressure, the difference between “lung volume during exhalation (Vdef)” and “lung volume during inhalation (Vinf)”, and to determine the maximum value of said difference. The breathing pressure is then determined, for which the volume difference has a value defined in relation to the maximum value of the volume difference. The device calculates a PEEP value on the basis of said determined breathing pressure value. | 12-10-2009 |
20090308394 | SYSTEM AND METHOD FOR SMART DELIVERY OF BACKUP BREATHS - A method for delivering ventilatory support to a patient is presented. The method includes controlling delivery of a first backup breath by delaying onset of the first backup breath, wherein delaying the onset of the first backup breath is configured to allow selection of an appropriate backup rate. Systems and computer-readable medium that afford functionality of the type defined by this method is also contemplated in conjunction with the present technique. | 12-17-2009 |
20090308395 | Coordinated Use of Respiratory and Cardiac Therapies for Sleep Disordered Breathing - Methods and systems involve coordinating therapies used for treating disordered breathing. Disordered breathing therapies may include cardiac electrical stimulation therapy and external respiratory therapy as well as other therapies for treating disordered breathing in a patient. The therapies delivered to the patient may be coordinated to enhance effectiveness of the therapy, to reduce therapy interactions, to improve patient sleep, or to achieve other therapeutic goals. | 12-17-2009 |
20090314294 | Breathing assistance device comprising a gas regulating valve and associated breathing assistance method - The invention relates to a breathing assistance device for a patient, the device including: a source of respiratory pressurised gas; a gas transmission duct comprising a distal end coupled to said source and a proximal end coupled to the patient; a gas regulating valve interposed in the gas transmission duct at a proximal location, comprising a leakage orifice and an obstruction means capable of varying the opening of the leakage orifice upon signal of controlling means and allowing a bidirectional gas flow through the leakage orifice in both expiration and inspiration phases. | 12-24-2009 |
20090320845 | Method of demand valve oxygen therapy for rapid abort of cluster headache - Methods for easing the duration of pain experienced by patients during a cluster headache are disclosed including providing a high-pressure source of substantially pure oxygen, applying the oxygen to the patient so that inhalation by the patient is substantially limited to inhalation of the substantially pure oxygen, inhaling the substantially pure oxygen in order to cause hyperventilation by the patient, and continuing hyperventilation at least until the patient achieves respiratory alkalosis, hypocapnia hyperoxia, and until the pain is terminated. The method preferably includes using a demand valve having a predetermined manual purge flow rate and a variable output flow rate to the user based on respiratory demand. | 12-31-2009 |
20100006098 | CPAP-OXIMETER HYBRID DEVICE AND METHOD OF USING - A CPAP-oximeter hybrid device and an associated method of using are presented for use in automatically adjusting or automatically controlling an air ventilation flow rate as a function of an estimated oxygen level in a patient using the device. The CPAP-oximeter hybrid device includes the interconnected components of a mouthpiece; a first and second EMF emitter; a detector; a housing unit, a blower and a control circuit. The method of using the CPAP-oximeter hybrid device includes the steps of adjusting, allowing, inserting, obtaining, reviewing, removing, setting, switching, and transferring. | 01-14-2010 |
20100018530 | METHOD AND APPARATUS FOR DETECTING AND TREATING HEART FAILURE - Devices and systems provide methods of detecting a heart failure condition of a patient that may be based on one or more respiratory parameters of a patient. In an example embodiment, a monitoring device determines one or more heart failure condition indicators based on a measure of the patient respiratory airflow and/or a measure of treatment pressure. Respiratory parameters such as respiration rate, hypopneas, apneas, Cheyne-Stokes breathing patterns or apnea-hypopnea counts may be compared to thresholds that are selected to represent a change in the condition of a heart failure patient such as an onset of a decompensation event. Results of the comparisons may trigger a pressure treatment change and/or one or more warnings or messages to notify a patient or physician of a pending change to the patient's heart failure condition so that the patient may more immediately seek medical attention to treat the heart failure condition. | 01-28-2010 |
20100018531 | Methods And Apparatus For Varying The Back-Up Rate For A Ventilator - A ventilator device delivers ventilatory support to a patient in a back up timed mode when patient respiration is not detected or a spontaneous mode when patient respiration is detected. The timing threshold governing the back-up mode is chosen to deviate from normal expected respiration time for the patient to promote patient initiated ventilation in the spontaneous mode but permit back-up ventilation in the event of apnea. Automated adjustments to the timing threshold during the timed mode are made from the less vigilant timing threshold to a more vigilant threshold at or near a timing of normal expected breathing of the patient. Such adjustments may be made from a minimum to a maximum vigilance timing settings or incrementally there between as a function of time in the timed mode which is preferably the number of delivered machine breaths. | 01-28-2010 |
20100024819 | APPARATUS, METHOD, SYSTEM AND COMPUTER PROGRAM FOR LEAKAGE COMPENSATION FOR A VENTILATOR - A ventilator apparatus, method, system, and computer program for determining leakage in a flow circuit providing pressurized gas to a patient having breathing disorder. The present invention determines the leakage by calculating a ratio between a measured flow of gas and a determined flow of gas related to a standard leakage. The determined standard leak flow may be calculated from a formula derived from Bernoulli's theorem. The invention may further be arranged to use a volume difference between inspiration and expiration phases in the compensation process. | 02-04-2010 |
20100024820 | Pressure-Controlled Breathing Aid - The ventilation module ( | 02-04-2010 |
20100031959 | METHOD AND SYSTEM FOR MONITORING SLEEP - A method of monitoring sleep of a sleeping subject is disclosed. The method comprises determining a phase shift of input radiofrequency signals received from the subject during sleep relative to output radiofrequency signals transmitted to the subject during sleep, calculating cardiac output based on the phase shift, and using the cardiac output for identifying sleep apnea events. | 02-11-2010 |
20100031960 | Self-Automated Titration System and Method - A method of titration using a combination continuous flow and pulse flow portable oxygen concentration system (system) with a patient includes: a) providing the system in a continuous flow mode and titrating the patient to a predetermined blood oxygen saturation using the system at one or more predetermined conditions in the continuous flow mode; b) providing the system in a pulse flow mode and titrating the patient to the same predetermined blood oxygen saturation as step a using the system at the same one or more predetermined conditions as in step a in the pulse flow mode; c) determining an Individualized Pulse Dose Equivalent (IPDE) correlation based on data obtained from steps a and b; d) providing the system with the IPDE correlation; and e) using the IPDE correlation to operate the concentrator in a more efficient manner. | 02-11-2010 |
20100037895 | DETERMINING SUITABLE VENTILATOR SETTINGS FOR PATIENTS WITH ALVEOLAR HYPOVENTILATION DURING SLEEP - A method and apparatus for determining suitable settings for a servo-ventilator to be used during sleep. Respiratory characteristics of a patient are measured during an awake learning period. With these measured characteristics, a target ventilation setting may be calculated by alternative methods. The calculated setting may then be used for enforcing a minimum ventilation during a treatment period where ventilatory support is provided with a servo-controlled ventilator. | 02-18-2010 |
20100043795 | METHODS AND APPARATUS FOR HEART FAILURE TREATMENT - Methods and apparatus for assessing the condition of and treating patients for heart failure by the delivery of continuous positive airway pressure are disclosed. Treatment of obstruction due to reflex vocal cord closure often experienced by heart failure patients is distinguished from treatment of upper airway obstruction typically associated with Obstructive Sleep Disorder Treatment may also be implemented by delivering synchronized cardiac pressure oscillations superimposed on a respiratory pressure level to provide assistance for the heart. Heart treatment pressure dose indicator may be calculated for prescribing and monitoring the delivery of treatment. The apparatus may also generate data to track heart failure condition that may be indicative of the degree of severity of heart failure based upon breathing patterns to assist in the diagnosis and management of heart failure patients. | 02-25-2010 |
20100051029 | Inverse Sawtooth Pressure Wave Train Purging In Medical Ventilators - This disclosure describes systems and methods for purging narrow diameter sensor tubing, occasionally referred to as “sensor lines”, in a ventilation system. The disclosure describes a novel approach in which a series of short, periodic releases of pressurized gas through the sensor tubes are used to clear any blockages due to condensation or patient secretions. | 03-04-2010 |
20100051030 | System and Method for Controlling Bolus Pulse Duration Based on Inspiratory Time in an Oxygen Concentration System - A method of controlling bolus delivery in a pulse flow oxygen concentration system for a patient includes providing a pulse flow oxygen concentration system that delivers concentrated oxygen gas to the patient in boluses having a pulse bolus duration, the pulse flow oxygen concentration system including an open control for controlling the pulse bolus duration of the boluses; determining one or more respiratory conditions of the patient; and adjusting the open control to adjust the pulse bolus duration of the boluses in accordance with the determined one or more respiratory conditions of the patient. | 03-04-2010 |
20100065056 | ARESPIRATORY GAS SUPPLY CIRCUIT TO FEED CREW MEMBERS AND PASSENGERS OF AN AIRCRAFT WITH OXYGEN - The invention relates to a respiratory gas supply circuit for an aircraft carrying passengers and/or crewmembers ( | 03-18-2010 |
20100065057 | METHOD AND APPARATUS FOR PROVIDING VENTILATORY ASSISTANCE - The apparatus provides for the determination of the instantaneous phase in the respiratory cycle, subject's average respiration rate and the provision of ventilatory assistance. A microprocessor ( | 03-18-2010 |
20100071696 | MODEL-PREDICTIVE ONLINE IDENTIFICATION OF PATIENT RESPIRATORY EFFORT DYNAMICS IN MEDICAL VENTILATORS - Systems and methods for efficient computation of patient respiratory muscle effort are provided. According to one embodiment, patient-ventilator characteristics are received, estimated and/or measured representing values of parameters of interest associated with properties or attributes of a ventilated patient system. Online quantification of respiratory muscle effort of the patient is continuously performed by (i) establishing a respiratory predictive model of the ventilated patient system based on an equation of motion and functions that approximate clinically-observed, patient-generated muscle pressures, (ii) determining an instantaneous leak flow value for the ventilated patient system, and (iii) based on the patient-ventilator characteristics and the instantaneous leak flow value, solving the respiratory predictive model to extract an estimated physiologic respiratory muscle effort value. Then, based on the respiratory muscle effort value or other parameters derived therefrom, the ventilation system is configured and operated for monitoring or breath delivery purposes. | 03-25-2010 |
20100071697 | INVERSION-BASED FEED-FORWARD COMPENSATION OF INSPIRATORY TRIGGER DYNAMICS IN MEDICAL VENTILATORS - A ventilator and method of ventilator control. The ventilator includes a pneumatic system for providing and receiving breathing gas, and a controller operatively coupled with the pneumatic system. The controller employs closed-loop control to provide positive breathing assistance to a patient. Supplemental feed-forward compensatory assistance is also provided, in addition to and independently of that commanded by the closed-loop control. The supplemental assistance may be determined, set or selected based on a ventilator parameter and/or an operator parameter, and/or as an automatic ongoing compensatory mechanism responding to varying patient respiratory demand. | 03-25-2010 |
20100083967 | MASK DEVICE WITH BLOWER - In a mask device with blower, a sensor for warning is disposed, which detects a movement position of an exhaust valve corresponding to the case where an internal pressure of a face body is lower than an outer atmospheric pressure at the time of inhaling air in a non-contact state and outputs a signal. A warning device operates in accordance with a signal that is output from the sensor for warning. | 04-08-2010 |
20100083968 | VENTILATOR WITH BIOFEEDBACK MONITORING AND CONTROL FOR IMPROVING PATIENT ACTIVITY AND HEALTH - A respiratory support ventilator apparatus is described that mechanically supports the work of respiration of a patient. The ventilator apparatus is highly portable and optionally wearable so as to promote mobility and physical activity of the patient, and to improve the overall health of the patient. The respiratory support ventilator may monitor a physical activity level and overall health status of the patient, and process this information. The information is used to track efficacy of the ventilation therapy relative to activity level and quality of life, and or to titrate or optimize the ventilation parameters to improve, maintain or optimize the physical activity level and overall health status of the patient. | 04-08-2010 |
20100089396 | METHOD AND APPARATUS FOR TREATING APNEA/HYPOPNEA - Methods and/or apparatuses for treating sleep-disordered breathing (SDB) are provided. In particular, systems and/or methods are provided which may temporarily boost the pressure of a supply of breathable gas provided by an AutoSet device for the treatment of hypopnea. In certain example embodiments, a supply of breathable is provided to patients to treat apneas and/or hypopneas. The presence and/or absence of apneas and/or hypopneas are detected (e.g. by monitoring the Apnea-Hypopnea Index). When hypopnea events are detected, the pressure of the supply of breathable gas temporarily is increased above the Pcrit and/or CPAP levels, at least during patient inspiration. When the hypopnea events are normalized, the pressure is reduced. In certain example embodiments, the pressure will not be increased when a non-hypopnea event is detected at the same time as a hypopnea event. | 04-15-2010 |
20100089397 | BREATH RESPONSIVE POWERED AIR PURIFYING RESPIRATOR APPARATUS - Breathing responsive powered air purifying respirator apparatus comprising an air-tight housing having connections for filters ( | 04-15-2010 |
20100095964 | METHOD AND SYSTEM FOR SYNCHRONIZING A PATIENT MONITORING DEVICE WITH A VENTILATOR DEVICE - A method and system for synchronizing a patient monitoring device with a ventilator device is disclosed herein. The method comprises: accessing a ventilation sequence defined by at least one device setting parameter and initiating assessment of a patient parameter with reference to at least one of the device setting parameter. The method further comprises controlling the progress on the ventilation maneuver based on the patient parameter assessment. | 04-22-2010 |
20100108065 | ACOUSTIC SENSOR FOR USE IN BREATHING MASKS - A breathing mask adapted to be placed over a wearer's face, comprises a mask body including a gas inlet port to be disposed in flow communication with the wearer's breathing passage for flow of a gas in a predetermined flow stream there through upon inhalation by the wearer; a communications microphone ( | 05-06-2010 |
20100108066 | Methods, systems and apparatus for paced breathing - Methods, systems and/or apparatus for slowing a patient's breathing by using positive pressure therapy. In certain embodiments, a current interim breathing rate target is set, and periodically the magnitude of a variable pressure waveform that is scaled to the current interim breathing rate target is increased if the patient's breathing rate is greater than the interim breathing rate target in order to lengthen the patient's breath duration. The magnitude of the pressure increase may be a function of the difference between the interim breathing rate target and the patient's breathing rate. The interim breathing rate target may be periodically reduced in response to the patient's breathing rate slowing down toward the current interim breathing rate target. The variable pressure waveform cycles from an inhalation phase to an exhalation phase when the patient airflow decreases to a cycle threshold, the cycle threshold being a function of flow versus time within a breath and generally increasing with time. Different interim breathing rate targets have different cycle threshold functions, and the cycle threshold functions allow easier cycling as the interim breathing rate targets decrease. Similarly, the variable pressure waveform triggers from an exhalation phase to an inhalation phase when the patient airflow increases to a trigger threshold, the trigger threshold being a function of flow versus time within a breath and generally decreasing with time. Different interim breathing rate targets have different trigger threshold functions, and the trigger threshold functions allow easier triggering as the interim breathing rate targets decrease. | 05-06-2010 |
20100116274 | METHOD, VENTILATOR AND CONTROL UNIT FOR DETERMINING A POSITION OF AN ESOPHAGEAL CATHETER - A method of obtaining an indication of the position of an esophageal catheter inserted into a patient includes the steps of obtaining an electrical signal from the esophageal catheter, determining an ECG component of the electrical signal, determining the widths and/or rate of a number of periods in which the ECG component exceeds a threshold value, using the rate or widths of the periods to determine the presence of a P-wave in the ECG component, and concluding that the catheter is in a good position for obtaining a correct EMG signal if a P-wave is determined to be present. If not, the position may be corrected. The method may be performed by a control unit in a ventilator or a monitoring device. | 05-13-2010 |
20100139659 | SPO2 CONTROL WITH ADAPTIVE LINEAR COMPENSATION - A device and a process for controlling a respirator with inclusion of an oxygen saturation value ( | 06-10-2010 |
20100147302 | Ventless Mask CPAP System - A CPAP or other ventilation system includes a mask, a flow generator, a positive or high pressure line to provide positive or high pressure air from the flow generator to the mask and a vacuum or return line provided to actively extract exhaled gas from the breathing chamber and/or the air delivery conduit of the mask. The vacuum or return line includes a vent outlet preferably positioned remote from the mask. | 06-17-2010 |
20100147303 | DETERMINATION OF PATIENT CIRCUIT DISCONNECT IN LEAK-COMPENSATED VENTILATORY SUPPORT - This disclosure describes systems and methods for detecting disconnect conditions in a ventilator. The disclosure describes a model-based enhancement to conventional disconnect detection. The methods and systems described herein compensate for the additional leakage that occurs due to inelastic and elastic leaks in the ventilation system. One method described includes calculating the actual leakage from the ventilation system including leaks from elastic leakage and inelastic leakage based on measurements of pressure and flow in the ventilation system for a breath and then comparing this leakage to a calculated hypothetical maximum allowable leakage determined based on an operator-selected maximum allowable leakage and the measurements of pressure for the same breath. Disconnection is assumed if the actual leakage is greater than the maximum allowable leakage. | 06-17-2010 |
20100147304 | BIO-MASK WITH INTEGRAL SENSORS - A system including a mask to detect an EEG signal and to deliver a gas, the mask having a forehead support extending from the body and adapted to contact a forehead surface of the patient during use, the forehead support having a plurality of sensors located thereon for detecting electrophysiological signals of the patient, with the plurality of sensors including EEG sensors positioned proximate to FP1/FP2 standard electrode placement positions of the patient, a gas delivery device in fluid communication with the mask and having an adjustable gas output, and a control system for determining a sleep stage from EEG signals detected by the mask and adjusting a gas delivery device based on the sleep stage. | 06-17-2010 |
20100147305 | System and Method for the Automatic Detection of the Expiratory Flow Limitation - The present invention refers to a system and a method for the automatic detection of the expiratory flow limitation of a subject. In an embodiment thereof the system for the automatic detection of expiratory flow limitation of a subject comprises determining the respiratory impedance of the subject comprising an imaginary component and, eventually, of a real part or, at least, by applying a forcing signal with one or more spectral components to the airway opening of a subject combined with measuring time courses of pressure and flow at the airway opening; determining at least one index linked to respiratory impedance or pressure and flow time courses; indicating the positioning of at least one index in relation to a preset threshold value. | 06-17-2010 |
20100170512 | Improvements to Electrically Operable Resuscitators - The present invention relates to an electrically operable resuscitation device comprising a pump including a rigid cylinder including at least one gas inlet and at least one gas outlet, a piston to travel in said cylinder, and at least one valve, the or each valve configured to allow gas to be displaced into said cylinder through said at least one gas inlet during at least one of a first stroke direction and second stroke direction of said piston in said cylinder, and for allowing gas to displaced through said at least one gas outlet during an opposite of said at least one of the first stroke direction and second stroke direction of said piston in said cylinder; a motor, selected from one of a stepper motor and feedback motor and stepper motor with feedback and linear motor, operatively connected to said piston to move said piston in said cylinder; a patient interface in ducted fluid connection with said pump to receive gas via said at least one gas outlet and to deliver said gas to said patient. | 07-08-2010 |
20100170513 | Self-contained, intermittent positive airway pressure systems and methods for treating sleep apnea, snoring, and other respiratory disorders - Systems and methods provide a self-contained, intermittent positive airway pressure system for treating sleep apnea, snoring, and other respiratory disorders. The systems and methods provide an air flow director that can be worn in or over the nose of the individual in communication with an upper airway. The systems and methods provide an airflow regulation assembly that can also be worn in its entirety by the individual in communication with the air flow director. The airflow regulation assembly includes a source of positive pressure. The airflow regulation assembly intermittently operates the source of positive pressure to increase positive air pressure in the air flow director sufficient to resist tissue collapse in the upper airway during only a portion of the respiratory cycle less than the entire respiratory cycle. | 07-08-2010 |
20100175699 | RESPIRATORY SENSOR - A sensor assembly for monitoring the respiration pattern of a subject is disclosed, the sensor comprising a sensor element for exposing to a gas stream exhaled by the subject comprising a first electrode, a second electrode and an active layer extending between the first and second electrodes to provide an electrical path therebetween, the sensor element being responsive to the concentration of water vapour in the gas stream exhaled by the subject, whereby the conductivity of the path between the electrodes varies in response to changes in the concentration of water vapour; a processor for determining the pattern of respiration of the subject; and means for displaying information relating to the determined respiration pattern to a user. The sensor assembly is particular suitable for measuring the respiration rate and/or depth of respiration of the subject. The sensor and method find particular application in the diagnosis and treatment of sleep apnea. | 07-15-2010 |
20100180895 | Methods and Apparatus for Controlling Mask Leak in CPAP Treatment - A method of operating a device for treating sleep disordered breathing (SDB), wherein the device provides continuous positive airway pressure during sleep, includes determining whether treatment pressure at the patient interface is below a desired value, in response to the determining, increasing pressure generated by the flow generator, in response to the increasing, making a determination that the increase in flow generator pressure has resulted in less than a desired increase in treatment pressure at the patient interface, and in response to the determination, reducing or inhibiting further increase of the flow generator pressure. | 07-22-2010 |
20100180896 | CONTROL UNIT AND DISPLAY UNIT FOR AN EMG CONTROLLED VENTILATOR - A control unit for controlling a ventilator that provides EMG controlled ventilation to a patient receives EMG signals from an esophageal catheter inserted into the patient and selects, dependent on the EMG signal, at least one signal for controlling the ventilator. A user interface unit operates by the control unit indicates the position of the catheter relative to the patient's diaphragm based on the selected signal. The position information may be presented in relation to signal curves representing the catheter signal or as an elongate vertical shape representing the catheter, the display unit being operated to indicate on the elongate vertical shape the position of the diaphragm. | 07-22-2010 |
20100180897 | COUGHING AID DEVICE - The invention relates to a coughing aid device, comprising a first-sub-assembly ( | 07-22-2010 |
20100180898 | APPARATUS AND METHOD FOR SUPPLYING A RESPIRATORY GAS - An apparatus for supplying a respiratory gas to a patient within the scope of the diagnosis and/or the treatment of sleep-related breathing disorders includes an electronic signal processing device for generating a pressure control signal on the basis of indicative signals relating to the breathing activity and/or the physiological state of a person. The signal processing device comprises a signal inputting device and an extraction device for generating data field entries according to predefined signal analysis procedures. A pressure signal generator is provided for generating the pressure control signal, taking into account determined data field entries which are at least selected by the extraction device. | 07-22-2010 |
20100186742 | MEDICAL VENTILATOR WITH AUTONOMOUS CONTROL OF OXYGENATION - A portable critical care medical ventilator with autonomous control of oxygenation is provided. The system and method provide for significantly reducing the O | 07-29-2010 |
20100186743 | METHOD AND APPARATUS FOR TREATING CHEYNE-STOKES RESPIRATION - A system and method for delivering a flow of breathing gas to an airway of a patient. The system monitors a characteristic that varies based on variations of the flow of the breathing gas and determines a Target Flow for the gas to be delivered to the patient based on the monitored characteristic. The Target Flow is set to a level sufficient to treat Cheyne-Stokes respiration or a sleep disordered breathing event. The system also alters the Target Flow based on a determination that the patient is experiencing a sleep disordered breathing event. The system further determines a pressure relief component and controls the flow of gas delivered to the patient based on the Target Flow and the pressure relief component. | 07-29-2010 |
20100186744 | SYSTEM AND PROCESS FOR SUPPLYING RESPIRATORY GAS UNDER PRESSURE OR VOLUMETRICALLY - The object of the invention is a device for supplying respiratory gas to a patient according to respiratory cycles, comprising a gaseous flow rate generator provided with a turbine with low inertia and high nominal speed, a first circuit called a supply circuit for the gaseous flow toward a respiratory mask or an intubation means of the patient, means for measuring pressure and/or measuring flow rate of the gaseous flow, computation means for parameters of pressure and/or flow rate, and means for controlling the speed of rotation of the generator, characterized in that the measuring means, the computation means and the speed control means coact automatically to control the speed of rotation of the turbine as a function of the inspiration and expiration phases and as a function of patient pressure signals and/or inspiration flow rate signals. | 07-29-2010 |
20100192952 | Methods and Devices for Central Photoplethysmographic Monitoring Methods - Disclosed herein are methods and devices for delivering gas to a subject and obtaining plethysmograph readings from a subject. Specifically disclosed herein are masks and helmets which comprise one or more pulse oximeter probes associated therewith. The masks and helmets may be used in particular contexts, including, but not limited to, emergency responder personnel, pilots or subjects of medical attention. | 08-05-2010 |
20100218766 | CUSTOMIZABLE MANDATORY/SPONTANEOUS CLOSED LOOP MODE SELECTION - A multimode ventilator is disclosed that provides physicians and clinicians the ability to select multiple modes of operation for the ventilator. Embodiments of the present disclosure provide users with the ability to select from multiple modes of ventilator operations. The users may also set transition conditions and monitoring thresholds that determine when the multimode ventilator transitions between the selected modes of operations. Multiple user interfaces are also disclosed that allow the user to interact with the multimode ventilator in order to select particular modes of operation, transition conditions, and monitoring thresholds. | 09-02-2010 |
20100218767 | LEAK-COMPENSATED RESPIRATORY MECHANICS ESTIMATION IN MEDICAL VENTILATORS - This disclosure describes systems and methods for compensating for leakage when determining the respiratory mechanics of a patient during delivery of gas from a medical ventilator to a patient. The systems and methods include monitoring an instantaneous flow in the ventilation system based on one or more measurements of pressure and flow in ventilation system. The leakage is modeled using a predetermined leakage model. A leak-compensated instantaneous lung flow of gas inhaled or exhaled by the patient is estimated. Using the leak-compensated lung flow and a predetermined respiratory mechanics model, the respiratory mechanics of a patient may be estimated including at least one of a leak-compensated lung compliance and a leak-compensated lung resistance. The method may include using a dynamic respiratory mechanics model or a static respiratory mechanics model that requires use of a pause maneuver to collect the necessary data. | 09-02-2010 |
20100224191 | Automated Oxygen Delivery System - The present invention advantageously provides a system for automatically delivering oxygen to a patient, including a sensor to measure an amount of oxygen in a bloodstream of a patient, a pneumatics subsystem and a control subsystem. The pneumatics subsystem includes an oxygen inlet, an air inlet, a gas mixture outlet, and a gas delivery mechanism to blend the oxygen and air to form a gas mixture having a delivered oxygen concentration, and to deliver the gas mixture to the patient. The control subsystem includes an input device to receive a desired concentration of oxygen in the bloodstream of the patient, a sensor interface to receive measurement data and status information associated with the measurement data from the sensor, a pneumatics subsystem interface to send commands to, and receive data from, the pneumatics subsystem, and a processor to control the delivered oxygen concentration based on the desired oxygen concentration, the measurement data and the status information. | 09-09-2010 |
20100224192 | Automated Oxygen Delivery Method - The present invention advantageously provides a method of automatically delivering oxygen to a patient. A desired concentration of oxygen in a bloodstream of a patient is received from a user. Data, including a measurement of the amount of oxygen in the bloodstream of the patient, as well as status information associated with the measurement, is received from a sensor. The measured data are determined to be valid or invalid based on the measurement value and the status information, and, based on this determination, a delivered fraction of inspired oxygen is delivered to the patient. If the measured data are determined to be valid, then the delivered fraction of inspired oxygen is based on the desired oxygen concentration and the measured data. On the other hand, if the measured data are determined to be invalid, then the delivered fraction of inspired oxygen is set to a predetermined value. | 09-09-2010 |
20100236555 | LEAK-COMPENSATED PRESSURE REGULATED VOLUME CONTROL VENTILATION - This disclosure describes systems and methods for compensating for leakage when during delivery of gas to a patient from a medical ventilator in a pressure regulated volume control (PRVC) ventilation mode. The technology described herein includes systems and methods that compensate the delivery of PRVC ventilation for leakage in the patient circuit by using leak-compensated lung flows as well as respiratory mechanics (lung compliance and lung resistance) estimated in a manner that compensates for elastic and inelastic leaks from the ventilation system. | 09-23-2010 |
20100236556 | VENTILATOR PATIENT SYNCHRONIZATION - A method and apparatus that provides an expert system for determining respiratory phase during ventilatory support of a subject. Discrete phase states are partitioned and prior probability functions and observed probability functions for each state are defined. The probability functions are based upon relative duration of each state as well as the flow characteristics of each state. These functions are combined to determine phase probabilities for each state using Bayes' theorem. The calculated probabilities for the states may then be compared to determine which state the subject is experiencing. A ventilator may then conform respiratory support in accordance with the most probable phase. To provide a learning feature, the probability functions may be adjusted during use to provide a more subject specific response that accounts for changing respiratory characteristics. | 09-23-2010 |
20100242965 | DISTINGUISHING BETWEEN CLOSED AND OPEN AIRWAY APNEAS AND TREATING PATIENTS ACCORDINGLY - Methods and apparatus for determining the occurrence of an apnea, patency and/or partial obstruction of the airway are disclosed. Respiratory air flow from a patient is measured to give an air flow signal. The determination of an apnea is performed by calculating the variance of the air flow signal over a moving time window and comparing the variance with a threshold value. One determination of partial obstruction of the airway is performed by detecting the inspiratory part of the air flow signal, scaling it to unity duration and area and calculating an index value of the amplitude of the scaled signal over a mid-portion. Alternatively, the index value is a measure of the flatness of the air flow signal over the mid-portion. One determination of patency of the airway is performed by applying an oscillatory pressure waveform of known frequency to a patient's airway, calculating the magnitude of the component of said air flow signal at the known frequency induced by the oscillatory pressure waveform and comparing the calculated magnitude with a threshold value. Alternatively, the air flow signal is analysed to detect the presence of a component due to cardiogenic activity. | 09-30-2010 |
20100252038 | EMG-CONTROLLED VENTILATOR AND METHOD FOR THE OPERATION THEREOF - A ventilator provides breathing support to a patient in an EMG controlled mode, and has an input that receives an EMG signal representative of breathing activity from the patient and a control unit for controlling the ventilation in dependence of said EMG signal. The ventilator has a registration unit that registers the actual breathing support provided from the ventilator to the patient, and the control unit determines if there is asynchrony between the EMG signal and the breathing activity and, in case of asynchrony, causes a switch from EMG controlled ventilation to a second ventilation mode not dependent on the EMG signal. If synchrony is detected the ventilator can return to EMG controlled ventilation. | 10-07-2010 |
20100252039 | METHODS, SYSTEMS AND DEVICES FOR NON-INVASIVE OPEN VENTILATION WITH GAS DELIVERY NOZZLES IN FREE SPACE - A non-invasive ventilation system may include an interface. The interface may include at least one gas delivery jet nozzle adapted to be positioned in free space and aligned to directly deliver ventilation gas into an entrance of a nose. The at least one gas delivery jet nozzle may be connected to a pressurized gas supply. The ventilation gas may entrain ambient air to elevate lung pressure, elevate lung volume, decrease the work of breathing or increase airway pressure, and wherein the ventilation gas is delivered in synchrony with phases of breathing. A support for the at least one gas delivery jet nozzle may be provided. A breath sensor may be in close proximity to the entrance of the nose. A patient may spontaneous breathe ambient air through the nose without being impeded by the interface. | 10-07-2010 |
20100252040 | METHODS, SYSTEMS AND DEVICES FOR NON-INVASIVE OPEN VENTILATION WITH GAS DELIVERY NOZZLES WITHIN AN OUTER TUBE - A non-invasive ventilation system may include at least one outer tube with a proximal lateral end of the outer tube adapted to extend to a side of a nose. The at least one outer tube may also include a throat section. At least one coupler may be located at a distal section of the outer tube for impinging at least one nostril and positioning the at least one outer tube relative to the at least one nostril. At least one jet nozzle may be positioned within the outer tube at the proximal lateral end and in fluid communication with a pressurized gas supply. At least one opening in the distal section may be adapted to be in fluid communication with the nostril. At least one aperture in the at least one outer tube may be in fluid communication with ambient air. The at least one aperture may be in proximity to the at least one jet nozzle. | 10-07-2010 |
20100252041 | METHODS, SYSTEMS AND DEVICES FOR NON-INVASIVE OPEN VENTILATION FOR PROVIDING VENTILATION SUPPORT - A system for providing ventilation support to a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle at the distal end of the gas delivery circuit; and at least one spontaneous respiration sensor for detecting respiration in communication with the control unit. The system may be open to ambient. The control unit may receive signals from the at least one spontaneous respiration sensor and determine gas delivery requirements. The ventilator may deliver gas at a velocity to entrain ambient air and increase lung volume or lung pressure above spontaneously breathing levels to assist in work of breathing, and deliver ventilation gas in a cyclical delivery pattern synchronized with a spontaneous breathing pattern. | 10-07-2010 |
20100252042 | METHODS, SYSTEMS AND DEVICES FOR NON-INVASIVE OPEN VENTILATION FOR TREATING AIRWAY OBSTRUCTIONS - A system for reducing airway obstructions of a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle, and at least one spontaneous respiration sensor in communication with the control unit for detecting a respiration effort pattern and a need for supporting airway patency. The system may be open to ambient. The control unit may determine more than one gas output velocities. The more than one gas output velocities may be synchronized with different parts of a spontaneous breath effort cycle, and a gas output velocity may be determined by a need for supporting airway patency. | 10-07-2010 |
20100252043 | METHOD AND ARRANGEMENT FOR RESPIRATORY SUPPORT FOR A PATIENT AIRWAY PROSTHESIS AND CATHETER - The invention relates to a method and an arrangement for respiratory support for a patient and an airway prosthesis. The spontaneous breathing of a patient is recorded with sensors and an additional amount of oxygen administered by means of a jet gas flow at the end of a lung inhalation process. Oxygen uptake on inhalation is thus improved. Where necessary the exhalation process of the patient can be retarded by a counter-current to prevent a collapse of the airways. The above manner of proceeding is achieved by means of an arrangement, comprising an oxygen pump connected to an oxygen source and an airway prosthesis, which may be connected by means of a catheter. The spontaneous breathing of the patient is recorded by means of sensors, connected to a controller, for activating the oxygen pump. The airway prosthesis has a tubular nozzle body with a connector for the catheter, whereby two of the sensors are provided on the nozzle body. The airway prosthesis and the integrated or introduced jet catheter are of such a size that the patient may breathe and speak freely. | 10-07-2010 |
20100258123 | SYSTEMS AND /OR METHOD FOR CALIBRATION -LESS DEVICE OR LESS EXPENSIVE CALIBRATION DEVICES FOR TREATING SLEEP-DISORDERED BREATHING - Systems and/or methods for treating sleep-disordered breathing (SDB) are provided. In particular, systems and/or methods are provided that include software systems for use with auto-titrating devices (e.g. APAP devices) that reduce and/or eliminate the need to calibrate the auto-titrating devices. The software system also may reduce and/or eliminate the need for certain sensors used in such calibrations. Certain example embodiments compute snore based on noises measured during expiration and inspiration, and certain example embodiments set patient leak utilizing the vent flow level. Certain example embodiments change treatment pressure thresholds after measuring patient improvement by monitoring a variable correlated with actual delivery pressure in accordance with an example embodiment, and certain example embodiments provide pressure according to motor speed in accordance with an example embodiment. | 10-14-2010 |
20100258124 | Method and device for carrying out a signal-processing viewing of a measurement signal that is correlated to the respiratory activity of an individual - The invention relates to a method and device for carrying out a signal-processing viewing of a measurement signal that is correlated with the respiratory activity of an individual, for example, of a measurement signal that is correlated with the respiratory gas. The aim of the invention is to provide solutions with which an improved electronic analysis of the signals that are representative with regard to respiratory activity can be achieved. To this end, the invention provides that viewing results are obtained within the scope of a signal-processing viewing of said measurement signal and make a differentiation between obstructive and central respiratory disorders possible. The viewing results are determined, in particular, while taking into account changes of selected breathing characteristics such as, for example, the change in the ratio of inhalation time to exhalation time. | 10-14-2010 |
20100258125 | Respirator and/or Anesthetic Device - A respirator and/or anesthesia device is provided having internal sensors and at least one respirator connection for the patient as well as an output unit, wherein at least one external sensor can be attached to the patient and its measured values that correlate with the measured values of the internal sensors can be displayed and evaluated. | 10-14-2010 |
20100258126 | METHODS AND APPARATUS FOR HEART FAILURE TREATMENT - Methods and apparatus for assessing the condition of and treating patients for heart failure by the delivery of continuous positive airway pressure are disclosed. Airflow of the patient is measured to determine occurrences of central apneas. A heart failure index is calculated from a count of the number of central apneas that have occurred. The present heart failure index can be compared with a previously calculated heart failure index to determine how the patient's heart failure disease has changed and how it should be treated. | 10-14-2010 |
20100269827 | System and Method for Circuits to Allow CPAP to Provide Zero Pressure - A system comprises a respiratory delivery arrangement adapted to cover at least one respiratory orifice of a patient. The system also comprises a first conduit having a first end and a second end, the second end connected to the respiratory delivery arrangement. A positive pressure is provided to the respiratory orifice via the first conduit and a second conduit having a third end and a fourth end, the fourth end connected to the respiratory delivery arrangement. An exhaled gas is extracted from the respiratory orifice by one or both of a valve configured to redirect flow through the respiratory delivery arrangement and a venturi opening. | 10-28-2010 |
20100275920 | SYSTEM AND METHODS FOR VENTILATING A PATIENT - System and methods for ventilating a patient are provided. In one embodiment, the method comprises steps of placing a ventilator in a mode capable of delivering respiratory gas based on at least one fixed parameter and at least one variable parameter, the fixed parameters being tidal volume and peak airway pressure and the variable parameter being PEEP, identifying a first level for the PEEP, configuring the ventilator to deliver the respiratory gas at the peak airway pressure and the PEEP to achieve the tidal volume, monitoring respiratory gas flow over time to measure tidal volume, setting a second level for the PEEP based on the measured tidal volume, automatically adjusting the PEEP to the second level relative to the peak airway pressure and repeating the steps of configuring, monitoring, setting and automatically adjusting to achieve the ventilation. | 11-04-2010 |
20100275921 | METHODS AND APPARATUS FOR DETECTING AND TREATING RESPIRATORY INSUFFICIENCY - Devices and systems provide methods of detecting a severity change in respiratory insufficiency (RI) or chronic obstructive pulmonary disease (COPD) condition of a patient. In an example embodiment, a detection monitoring device determines one or more severity change indicators based on a measure of supplied pressure or other representative measure determined by the device. The supplied pressure may optionally be determined during pressure treatment that satisfies a target ventilation. The supplied pressure or representative data may be compared to one or more thresholds that are selected to represent a change in the condition of the RI or COPD patient such as an exacerbation of a prior condition. Results of the comparisons may trigger one or more warnings or messages to notify a patient or physician of a pending change to the patient's RI or COPD condition so that the patient may more immediately seek medical attention to treat the condition. | 11-04-2010 |
20100282257 | Fluid Mixing Apparatus With an Improved Mixer - A fluid mixing apparatus is provided. The apparatus has a mixing volume, a primary inlet, secondary inlet, and an outlet are provided for the volume. The secondary inlet includes a valve which is adapted to be operated by a driver to pulse width modulate the valve between two flow states to achieve a given flow state through the secondary inlet. | 11-11-2010 |
20100282258 | METHOD AND APPARATUS FOR PROVIDING PULSES INHALATION OF 17O2 FOR MAGNETIC RESONANCE IMAGING OF CEREBRAL METABOLISM - Prior approaches have delivered O | 11-11-2010 |
20100282259 | THREE-DIMENSIONAL WAVEFORM DISPLAY FOR A BREATHING ASSISTANCE SYSTEM - An apparatus configured to display a three-dimensional representation of a waveform for a breathing assistance system may include a processor and a display device. The processor may be configured to receive signals from one or more sensors over a plurality of time periods and generate multiple instances of a waveform based on the received signals, each instance corresponding to one of the plurality of time periods. The display device may be configured to cooperate with the processor to display a graphical three-dimensional representation of the waveform over time. The three-dimensional representation may include graphical representations of the multiple instances of the waveform displayed simultaneously. | 11-11-2010 |
20100300444 | OXYGEN CONSERVING OXYGEN DELIVERY SYSTEM - The present invention extends to methods, systems, computer program products, and circuits for conserving oxygen during the delivery of oxygen to a user. Embodiments of the invention use a microphone to detect breathing sounds indicative of different portions of a breathing cycle. Sounds not related to the breathing cycle are filtered out of the signal. Using the breathing sounds, a microprocessor differentiates inspiration from other portions of the breathing cycle. When inspiration is detected, a valve is transitioned to permit the flow of oxygen from an oxygen source to a user to deliver an appropriate bolus of oxygen. The microprocessor can also detect fault conditions, such as, for example, apnea, failure to deliver a bolus of oxygen, and restrictions in the flow of oxygen from the oxygen source to a user. | 12-02-2010 |
20100300445 | VENTILATOR CONTROL SYSTEM UTILIZING A MID-FREQUENCY VENTILATION PATTERN - Systems and methods are provided for providing ventilation to a patient. An air source is configured to provide pressurized air to a patient through a patient circuit according to a ventilation pattern. At least one sensor is configured to monitor a corresponding physiologic property of the patient. A ventilator control system is configured to calculate an alveolar ventilation value from the monitored physiologic property of the patient, determine at least an optimal frequency for the ventilation pattern from the calculated alveolar ventilation value, and update the ventilation pattern according to the determined optimal frequency. | 12-02-2010 |
20100307499 | RESPIRATOR WITH AUTOMATICALLY CONTROLLED PRESSURE-ASSIST RESPIRATION - A respirator with an adjustable pressure or volume flow curve has a control and analyzing unit, which is set up to determine the resistance R and the alveolar pressure P | 12-09-2010 |
20100307500 | METHODS AND DEVICES FOR THE DETECTION OF HYPOPNOEA - Automated methods provide hypopnea detection for determining a hypopnea event and/or a severity of a hypopnea event. In some embodiments, a calculated short-term variance of a measured respiratory flow signal are compared to first and second proportions of a calculated long-term variance of the measured flow signal. A detection of the hypopnea may be indicated if the first measure falls below and does not exceed a range of the first and second proportions during a first time period. In some embodiments, a hypopnea severity measure is determined by automated measuring of an area bounded by first and second crossings of a short-term measure of ventilation and a proportion of a long-term measure. The detection methodologies may be implemented for data analysis by a specific purpose computer, a detection device that measures a respiratory airflow or a respiratory treatment apparatus that provides a respiratory treatment regime based on the detected hypopneas. | 12-09-2010 |
20100313888 | SPOOL VALVE ASSEMBLY FOR DELIVERY OF A GASEOUS DRUG - A spool valve assembly for a gaseous drug delivery device includes a housing, a gas inlet, a continuous flow orifice, a valve outlet, a valve mounting surface, a spool valve, a patient outlet, an exhaust chamber with a pressure sensor detecting inhalation and a gaseous drug path to the patient, and a control circuit connected to the pressure sensor. The gas inlet includes a port connected to a gaseous drug supply, with a first portion inside the housing and a second portion outside the housing. The valve mounting surface includes a mount for a high flow valve and a low flow valve, with the valve mounting surface between the gas inlet and the valve outlet. The spool valve includes a knob, an outer surface, sealing members and a counter bore, with a first portion of the knob inside the housing and a second portion outside the housing. | 12-16-2010 |
20100326443 | METHOD AND DEVICE FOR GAS SUPPLY DURING CARDIOPULMONARY RESUSCITATION - A method and device for providing ventillation gas to a patient during cardiopulmonary resuscitation, mechanically or manually. The includes comprises: a gas source, a tracheal tube arranged in the trachea of a patient, a gas channel in the tracheal tube, for supplying gas, such as oxygen, to the bronchi of the patient, a central channel for connecting the bronchi to the atmosphere, a flow valve for adjusting the flow rate of the gas supplied, and a switch valve for initiating and terminating the gas supply. The device is operated by a computer to cycle the patient through a series of operational phases. | 12-30-2010 |
20110000489 | CONTROL UNIT, METHOD AND COMPUTER-READABLE MEDIUM FOR OPERATING A VENTILATOR - To set trigger conditions correctly in pneumatic mode, a ventilator is controlled to obtain a measurement value of a bioelectric signal representative of the patient's breathing function, determine, based on the bioelectric signal, at least one point in time at which the patient starts inhalation, obtain a measurement value to be used for triggering an inspiration phase in the ventilator during the at least one point in time, determine a trigger condition for the inspiration phase on the basis of the measurement value, and use the trigger condition for initiating inspiration when ventilating the patient in support mode. | 01-06-2011 |
20110011402 | DISTINGUISHING BETWEEN CLOSED AND OPEN AIRWAY APNEAS AND TREATING PATIENTS ACCORDINGLY - Methods and apparatus for determining the occurrence of an apnea, patency and/or partial obstruction of the airway are disclosed. Respiratory air flow from a patient is measured to give an air flow signal. The determination of an apnea is performed by calculating the variance of the air flow signal over a moving time window and comparing the variance with a threshold value. One determination of partial obstruction of the airway is performed by detecting the inspiratory part of the air flow signal, scaling it to unity duration and area and calculating an index value of the amplitude of the scaled signal over a mid-portion. Alternatively, the index value is a measure of the flatness of the air flow signal over the mid-portion. One determination of patency of the airway is performed by applying an oscillatory pressure waveform of known frequency to a patient's airway, calculating the magnitude of the component of said air flow signal at the known frequency induced by the oscillatory pressure waveform and comparing the calculated magnitude with a threshold value. Alternatively, the air flow signal is analysed to detect the presence of a component due to cardiogenic activity. | 01-20-2011 |
20110023880 | Method And System For Delivering A Multi-Breath, Low Flow Recruitment Maneuver - This disclosure describes systems and methods for delivering one or more low flow recruitment maneuvers to a patient while on a ventilator. Embodiments described herein provide methods for delivering low flow recruitment maneuvers wherein either or both of the inspiratory and expiratory phases of the recruitment maneuver are maintained by the ventilator at a low flow. Embodiments described herein provide for single-breath recruitment maneuvers and multi-breath recruitment maneuvers at low flow. Embodiments described herein provide for graphical display of a pressure-volume loop (PV loop) for both single-breath and multi-breath recruitment maneuvers. Embodiments described herein also disclose an automated ventilator functionality whereby recruitment maneuvers settings and/or post-recruitment maneuver settings for resuming prescribed ventilation may be set via a graphical user interface. Other embodiments described herein enable a clinician to configure the ventilator to synchronize the end the recruitment maneuver with patient-triggered inspiration for post-recruitment maneuver ventilation. | 02-03-2011 |
20110023881 | Method And System For Generating A Pressure Volume Loop Of A Low Flow Recruitment Maneuver - This disclosure describes systems and methods for delivering one or more low flow recruitment maneuvers to a patient while on a ventilator. Embodiments described herein provide methods for delivering low flow recruitment maneuvers wherein either or both of the inspiratory and expiratory phases of the recruitment maneuver are maintained by the ventilator at a low flow. Embodiments described herein provide for single-breath recruitment maneuvers and multi-breath recruitment maneuvers at low flow. Embodiments described herein provide for graphical display of a pressure-volume loop (PV loop) for both single-breath and multi-breath recruitment maneuvers. Embodiments described herein also disclose an automated ventilator functionality whereby recruitment maneuvers settings and/or post-recruitment maneuver settings for resuming prescribed ventilation may be set via a graphical user interface. Other embodiments described herein enable a clinician to configure the ventilator to synchronize the end the recruitment maneuver with patient-triggered inspiration for post-recruitment maneuver ventilation. | 02-03-2011 |
20110030687 | OXYGEN CONCENTRATOR APPARATUS AND METHOD WITH AN OXYGEN ASSISTED VENTING SYSTEM - An oxygen concentrator may rely on a pressure swing adsorption process to produce an oxygen enriched gas stream from canisters filled with granules capable of separation of oxygen from an air stream. The adsorption process uses a cyclical pressurization and venting of the canisters to generate an oxygen enriched gas stream. During venting of the canisters, use of oxygen as a purge gas may improve the efficiency and lifetime of the oxygen concentrator. | 02-10-2011 |
20110041849 | SYSTEMS AND METHODS FOR CONTROLLING A VENTILATOR - A method and system for controlling a ventilator is disclosed. Oxygen saturation values from pulse oximeters may be used to adjust the settings of a ventilator. Multiple sensors and multiple oxygen saturation values in a fault tolerant pulse oximeter configuration may be used to provide a backup value or confidence measure, thereby increasing reliability and patient safety. | 02-24-2011 |
20110041850 | Method For Ventilation - The disclosure describes a method for automatically initiating ventilation, controlling ventilation, transitioning a ventilator to subject controlled ventilation, and weaning a subject from ventilation. The disclosure describes that the method for automatically initiating ventilation includes inputting a physical characteristic of the subject into a ventilator. The physical characteristic may be ideal body weight, height, or age. Based on the inputted physical characteristic, one or more ventilation parameters are calculated. The disclosure describes initiating ventilation based on the calculated parameters. During ventilation at least one physiological parameter of the subject is monitored. At least one ventilation parameter may be adjusted based on the monitoring of the physiological parameters and the inputted physical characteristic. | 02-24-2011 |
20110041851 | DEVICE FOR DETECTING ELECTRICAL POTENTIALS OF THE FOREHEAD REGION OF A PATIENT - A device for detecting electrical potentials in the forehead area of a patient has a transverse member adapted to rest against the forehead of the patient, a vertical member extending crosswise to the transverse member and a mask on the vertical member. Electrodes are provided on the transverse members at least at its ends and at the center at which the vertical bar crosses the transverse member. | 02-24-2011 |
20110067697 | Method and Device for Administering Oxygen to a Patient and Monitoring the Patient - A method for administering a gas containing oxygen to a patient. The method includes: measuring an oxygen-dependent physiological parameter in the patient; determining an optimal gas delivery parameter based on the oxygen-dependent physiological parameter; and administering the gas to the patient in accordance with the optimal gas delivery parameter. In some embodiment of the invention, the method also includes monitoring the oxygen-dependent physiological parameter. | 03-24-2011 |
20110088694 | Integrated, Extendable Anesthesia System - The specification describes anesthesia systems with an integrated, extendable clinical center and clinician/anesthesia office that accommodates for physical separation of clinical and clerical functions. The disclosed anesthesia systems allow for a portion of the system to be brought closer to the patient such that clinical controls can be accessed while tending to the patient airway, without compromising office space available to the clinician or crowding the patient area. | 04-21-2011 |
20110094512 | AUTOTITRATING METHOD AND APPARATUS - An apparatus and method of controlling the delivery of therapeutic gas delivered to a patient undergoing positive airway pressure therapy is described. The method includes providing a flow of gas to a patient's airway at a pressure, obtaining information from the range of 0 to 25 Hz of the frequency domain of the flow, and adjusting the pressure based on the information. The apparatus includes a blower for providing a flow of gas to a patient's airway at a pressure, a sensor to measure a characteristic of the flow, a controller to obtain information from the range of 0 to 25 Hz of the frequency domain of the characteristic, and a pressure regulator for adjusting the pressure based on the information. | 04-28-2011 |
20110100365 | Respiratory device and method for controlling a respiratory device - The invention relates to a respiratory device comprising a respiratory gas source ( | 05-05-2011 |
20110100366 | EXTENDABLE AIR DELIVERY SYSTEM AND AIR DELIVERY METHOD - An extendable air delivery system and a method for deciding a delivery mode therein are provided. The extendable air delivery system includes a PAP device supply a breathable pressured air to a patient and a sensing device to acquire physiological information from the patient by at least a sensor. The method includes steps of initiating the PAP device, detecting if the sensing device is connected with the PAP device, and if negative, the PAP device enters a preset independent operation mode and performs a preloaded first air delivery behavior for providing the breathable air to the patient, or if positive, the PAP device enters a common operation mode. During the common operation mode, based on the acquired physiological information, the sensing device generates a signal/data for sending to the PAP device, and the signal/data involves in deciding a second air delivery behavior for providing the patient the breathable air. And, the above steps are repeated during the air delivery. | 05-05-2011 |
20110108034 | METHOD AND SYSTEM FOR CONTROLLING A VENTILATOR - A method and system for controlling a ventilator. The method includes monitoring a central nervous system parameter and automatically adjusting a level of ventilatory support from a ventilator based on a value of the central nervous system parameter. | 05-12-2011 |
20110120469 | MEDICAL VENTILATION DEVICE WITH HOSE DETECTION - A medical ventilator is coupled to a patient via a hose system to generate a respiratory flow according to a predetermined ventilation mode. The ventilator has a first flow sensor for generating a first sensor signal indicative of an inspiratory flow into the hose system distant from the patient. The hose system has a further flow sensor for generating a further sensor signal indicative of the respiratory flow proximal to the patient. The ventilator has an input for receiving the further sensor signal. The ventilator compares the further sensor signal with an expected sensor signal indicative of the respiratory flow proximal to the patient. The expected sensor signal is determined by a combination of the first sensor signal and the predetermined ventilation mode. The ventilator controls the ventilating in dependence on the comparison. | 05-26-2011 |
20110120470 | TREATMENT PROTOCOL TEMPLATE GENERATION AND BRANCHING LOGIC SYSTEM - A method for determining a next protocol step in a patient treatment protocol upon completion of a current treatment protocol step. The method includes accessing a treatment protocol template associated with a treatment protocol step. The treatment protocol step includes rules that determine when the protocol step is passed or failed and includes a first clinical decision point that specifies a second protocol step that is be performed next when the rules are passed and a second clinical decision point that specifies a third protocol step that is to be performed next when the rules are not passed. The method includes receiving input into parameter fields of the treatment protocol template, determining if the rules associated with the parameter fields of the treatment protocol template have been passed or not passed, and automatically determining which of the second or third protocol steps is to be performed next. | 05-26-2011 |
20110120471 | Reperfusion Protection in Resuscitation - An apparatus and method for resuscitating a patient suffering from cardiac arrest or another condition in which normal circulation has been interrupted. A ventilator is used for delivering a gas mixture to the patient. The ventilator is configured to adjust the partial pressure of CO2 to one or more partial pressures high enough to slow expiration of CO2 from the patient's lungs and thereby maintain a reduced pH in the patient's tissues for a period of time following return of spontaneous circulation. | 05-26-2011 |
20110132368 | Display Of Historical Alarm Status - This disclosure describes embodiments of alarm systems and methods for use in devices such as medical ventilators. Embodiments described provide for an apparatus of an interactive multilevel alarm system. Embodiments of the alarms also provide, at a glance, current alarm and device status information and historical alarm information to the operator. Embodiments also direct interaction with the alarming functions of the device by the operator. In some embodiments, additional visual indicators may be provided to identify non-normal or noteworthy operating conditions, such as the use of a therapeutic gas by a mechanical ventilator, so that the operator can assess the impact of that non-normal condition on any current and historical alarm information simultaneously provided. | 06-09-2011 |
20110132369 | Ventilation System With System Status Display - The disclosure describes a novel approach for displaying information on a ventilator system. The disclosure describes a novel system including a removable primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information and a novel method for controlling a ventilator system. | 06-09-2011 |
20110132370 | BLOOD GLUCOSE REGULATION THROUGH CONTROL OF BREATHING - A respiratory treatment apparatus ( | 06-09-2011 |
20110139155 | METHODS AND APPARATUS FOR MONITORING THE CARDIOVASCULAR CONDITION OF PATIENTS WITH SLEEP DISORDERED BREATHING - A method for relating to each other cardiovascular and sleep disordered breathing conditions of a patient. The patient's heart rate and/or detailed echocardiogram data is monitored and recorded continuously or periodically together with sleep disordered breathing information on similar time scales. Changes in the patient's heart rate associated with changes in sleep disordered breathing can then be observed. More specifically, positive airway pressure at therapeutic levels for treatment of sleep disordered breathing is applied while events associated with the treatment of the patient's sleep disordered breathing are detected and recorded. At the same time, information concerning the cardiovascular condition of the patient is stored and the stored information concerning the cardiovascular condition of the patient and the recorded events associated with the treatment of the patient's sleep disordered breathing are related to each other. | 06-16-2011 |
20110139156 | VENTILATOR PATIENT SYNCHRONIZATION - A method and apparatus that provides an expert system for determining respiratory phase during ventilatory support of a subject. Discrete phase states are partitioned and prior probability functions and observed probability functions for each state are defined. The probability functions are based upon relative duration of each state as well as the flow characteristics of each state. These functions are combined to determine phase probabilities for each state using Bayes' theorem. The calculated probabilities for the states may then be compared to determine which state the subject is experiencing. A ventilator may then conform respiratory support in accordance with the most probable phase. To provide a learning feature, the probability functions may be adjusted during use to provide a more subject specific response that accounts for changing respiratory characteristics. | 06-16-2011 |
20110155134 | SESSION-BY-SESSION ADJUSTMENT OF A DEVICE FOR TREATING SLEEP DISORDERED BREATHING - A method is disclosed for operating a device that treats sleep disordered breathing (SDB) during successive treatment sessions, where the device provides continuous positive airway pressure during sleep. The method comprises the steps of applying a constant treatment pressure during a first session and deriving a sleep disorder index (SDI) representative of the number of SDB episodes that occurred during the first session. If the treatment pressure should be increased based upon the derived SDI, it is increased during a second, subsequent session. | 06-30-2011 |
20110186050 | Method and System for Controlling Breathing - The present invention relates to a method and a system for controlling breathing of a patient. A system for controlling breathing of a patient includes a respiratory conduit. The respiratory conduit is configured to be coupled to a patient interface device and is further configured to be coupled to a pressurized air generating device. The respiratory conduit includes at least two air flow control devices, positioned between the patient interface device and the pressurized air generating device. The respiratory conduit includes at least two volumes, wherein one volume is positioned between a first air flow control device and a second air flow control device and another volume is positioned between a second air flow control device and a third air flow control device. | 08-04-2011 |
20110197886 | RESPIRATORY DEVICE AND METHOD FOR VENTILATING A PATIENT - The invention relates to a respiratory device for ventilating a patient. The respiratory device comprises a respirator that is or can be linked with an endotracheal tube or a respiratory mask. The respiratory device is provided with a control/regulation unit ( | 08-18-2011 |
20110197887 | ACCESSORY CONNECTION AND DATA SYNCHRONICATION IN A VENTILATOR - A medical ventilator that includes a memory device, a controller operatively coupled to the memory device, and an accessory connector provided at or about the exterior of the ventilator housing. The controller is adapted to record ventilation data in the memory device that includes at least one of data relating to the operation of the ventilator and data relating to the breathing of the patient while ventilation therapy is being provided to the patient. The accessory connector is structured to operatively couple the controller to an accessory device and to provide power to the accessory device. The accessory connector also serves as a communication bus for enabling the accessory device to communicate data generated by it to the controller, which in turn is adapted to record the accessory device data in the memory device in a manner wherein the accessory device data is merged. | 08-18-2011 |
20110197888 | METHOD AND SYSTEM FOR VENTILATION - A method of monitoring tracheal pressure of a subject is disclosed. The subject is ventilated with breathing gas flowing via an endotracheal tube having an inflatable cuff. The method comprises monitoring sealing of the trachea by the cuff using a close loop control, varying a ventilation pressure thereby varying flow level of the breathing gas, monitoring a response pressure within the cuff in response to the variation, and calculating the tracheal pressure using the ventilation pressure variations, the cuff response pressure and the flow level. In some embodiments, an under-pressure is applied for suctioning fluid carrying secretions, synchronously with variations in the tracheal pressure. | 08-18-2011 |
20110209704 | Event-Based Delay Detection And Control Of Networked Systems In Medical Ventilation - This disclosure describes systems and methods for detecting and quantifying transmission delays associated with distributed sensing and monitoring functions within a ventilatory system. Specifically, the present methods and systems described herein define an event-based delay detection algorithm for determining transmission delays between distributed signal measurement and processing subsystems and a central platform that receives data from these subsystems. It is important to evaluate and quantify transmission delays because dyssynchrony in data communication may result in the misalignment of visualization and monitoring systems or instability in closed-loop control systems. Generally, embodiments described herein seek to quantify transmission delays by selecting a ventilator-based defining event as a temporal baseline and calculating the delay between the inception of the defining event and the receipt of data regarding the defining event from one or more distributed sensing devices. | 09-01-2011 |
20110209705 | TRACHEAL CATHETER AND PROSTHESIS AND METHOD OF RESPIRATORY SUPPORT OF A PATIENT - A method and apparatus is described for supporting the respiration of a patient. The spontaneous respiration of a patient can be detected by sensors and during inhalation an additional amount of oxygen can be administered to the lungs via a jet gas current. If required, during exhalation a countercurrent can be administered to avoid collapse of the respiration paths. This therapy can be realized by an apparatus including a transtracheal catheter, an oxygen pump connected to an oxygen source, spontaneous respiration sensor(s) connected to a control unit for activating the oxygen pump and, if needed, a tracheal prosthesis. The tracheal prosthesis may include a connection for the catheter and the breath sensor(s). The tracheal prosthesis, if used, and the catheter can be dimensioned so the patient can freely breathe, cough, swallow and speak without restriction, and the system can be wearable to promote mobility. | 09-01-2011 |
20110209706 | VENTILATOR WITH LIMP MODE - A method of operating a ventilator that includes steps of (a) providing a specified ventilation therapy to a patient through a ventilator according to a specification; (b) determining and storing a backup parameter relating to the operation of the ventilator or the breathing of the patient during the step of providing the specified ventilation therapy; (c) determining that an alarm condition exists that indicates a problem with the ventilator that would prevent the ventilator from providing the specified ventilation therapy to the patient according to the specification; and (d) responsive to determining that the alarm condition exists, providing backup ventilation therapy to the patient through the ventilator that is based at least partially on the stored backup parameter. Also, a ventilator that is adapted to perform the method just described. | 09-01-2011 |
20110214672 | SYSTEM AND METHOD FOR CIRCUIT COMPLIANCE COMPENSATED PRESSURE-REGULATED VOLUME CONTROL IN A PATIENT RESPIRATORY VENTILATOR - A system and a method for circuit compliance compensated pressure control in a patient respiratory ventilation system, having a pressure regulated feedback servo control loop, a pressure-regulated volume controller, and a patient volume observer. The patient volume observer is operative to estimate a patient volume, that is, the volume actually delivered to the patient by accounting for volume deviation or loss caused by patient circuit leakage and valve dynamics. Based on the difference between the estimated patient volume and a set tidal volume, the pressure-regulated volume controller is operative to generate and update a circuit compliance pressure compensation factor. The pressure regulated feedback servo control loop is operative to modulate the peak airway pressure based on the circuit compliance pressure compensation factor, so as to achieve the set tidal volume while maintaining a constant inspiratory time and a constant I:E ratio. | 09-08-2011 |
20110226247 | Parameter Optimization in Sleep Apnea Treatment Apparatus - A method and apparatus for the optimized treatment of obstructive sleep apnea includes a controller coupled to an information storage device, a sensor and a pressure source. The pressure source is coupled to a patient airway. The controller reads information from the information storage device that represents a first operating mode defining a first pressure profile. The controller operates the pressure source to apply the pressure profile to the patient airway. The sensor generates a signal in response to changes in airflow in the patient airway. The controller analyzes the signal and selects a new operating mode in response to the analysis. | 09-22-2011 |
20110226248 | AUTOMATIC RISE TIME ADJUSTMENT - A method of providing pressure support to a patient that includes determining a measure associated with an inspiratory time of the patient during therapy, delivering a flow of breathing gas to the patient at an inspiratory positive airway pressure (IPAP) level during at least a portion of an inspiratory phase of the patient, delivering the flow of breathing gas to the patient at an expiratory positive airway pressure (EPAP) level that is less than the IPAP level during at least a portion of an expiratory phase of the patient, and automatically setting a rise time associated with a transition from the EPAP level to the IPAP level based on the measure associated with the inspiratory time of the patient. Also provided is a pressure support system adapted to perform the method. | 09-22-2011 |
20110232642 | VARIABLE FLOW OXYGEN THERAPY - The present invention describes systems and methods to provide variable flow oxygen therapy. An exemplary embodiment of the present invention provides a method of oxygen therapy involving delivering oxygen-enriched gas to a patient during a first portion of a breathing cycle at a first flow rate. Furthermore, the method of oxygen therapy involves delivering oxygen-enriched gas to the patient during a second portion of the breathing cycle at a second flow rate, where the second flow rate is greater than zero and less than the first flow rate. | 09-29-2011 |
20110232643 | SYSTEM AND METHOD FOR TREATING LUNG DISEASE USING POSITIVE PRESSURE AIRWAY SUPPORT - A method of treating lung disease, such as asthma or COPD, is provided that includes determining a parameter indicative of a patient's pulmonary mechanics (such as, without limitation, airway resistance or lung compliance), and delivering positive pressure support to the airway of the patient, wherein the pressure level (which may be constant or variable) of the positive pressure support during at least a portion of the inspiratory phase of the patient is determined based on the determined parameter. | 09-29-2011 |
20110232644 | AIRWAY PRESSURE RELEASE VENTILATION - A pressure support system ( | 09-29-2011 |
20110247620 | Portable Oxygen Delivery Device - Disclosed are devices, systems, and methods, including an oxygen delivery device that includes an oxygen delivery module, at least one sensor to detect patient breathing, and a controller configured to control the oxygen delivery module to cause the oxygen delivery module to deliver oxygen to the patient based on data from the at least one sensor such that in response to a determination, based on data from the at least one sensor, that no breathing is detected for a first pre-determined period of time, the controller causes the oxygen delivery module to deliver oxygen to the patient in continuous flow mode, and in response to a determination, based on additional data from the at least one sensor, that breathing is detected for a second period of time, the controller causes the oxygen delivery module to deliver oxygen to the patient in a pulse flow mode. | 10-13-2011 |
20110247621 | Portable Oxygen Delivery Device - Disclosed are devices, systems, and methods, including an oxygen delivery device that includes an oxygen delivery module configured to deliver a pulse including greater than 100 mL of concentrated oxygen, and a controller configured to control the oxygen delivery module to cause the oxygen delivery module to deliver the pulse including greater than the 100 mL of the concentrated oxygen within approximately first 60% of a patient's inspiratory period. Also disclosed is a device that includes an oxygen delivery module, a piezoelectric valve coupled to an output of the oxygen delivery module to receive the concentrated oxygen, a driver to electrically actuate the piezoelectric valve, and a controller to control the driver to cause controllable actuation of the piezoelectric valve by the driver to cause controllable opening of the valve to enable oxygen flow to be directed for inhalation by a patient via the piezoelectric valve. | 10-13-2011 |
20110247622 | Portable Oxygen Delivery Device - Disclosed are devices, systems, and methods, including an oxygen delivery device that includes an oxygen delivery module to produce at least concentrated oxygen, and a gas moving device to deliver air to the oxygen delivery module. The gas moving device includes at least one piston rotatable inside a first chamber defined in a housing, the rotational movement of the at least one piston inside the first chamber resulting in varying pressure generated in a first portion of the first chamber, and a vane member rigidly coupled to the at least one piston, the vane member being configured to move inside a vane chamber defined in the housing, the piston and the vane rigidly coupled to the piston define the first portion of the first chamber and a second portion of the first chamber. | 10-13-2011 |
20110259333 | Ventilation System With System Status Display For Maintenance And Service Information - The disclosure describes a novel approach for displaying information on a ventilator system. The disclosure describes a novel respiratory system including a removable primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information and a novel method for controlling a ventilator system. | 10-27-2011 |
20110265794 | VENTILATORY ASSISTANCE FOR TREATMENT OF CARDIAC FAILURE AND CHEYNE-STOKES BREATHING - Method and apparatus for the treatment of cardiac failure, Cheyne Stokes breathing or central sleep apnea are disclosed. A subject is provided with ventilatory support, for example positive pressure ventilatory support using a blower and mask. Respiratory airflow is determined. From the respiratory airflow are derived a measure of instantaneous ventilation (for example half the absolute value of the respiratory airflow) and a measure of longterm average ventilation (for example the instantaneous ventilation low pass filtered with a 100 second time constant). A target ventilation is taken as 95% of the longterm average ventilation. The instantaneous ventilation is fed as the input signal to a clipped integral controller, with the target ventilation as the reference signal. The output of the controller determines the degree of ventilatory support. Clipping is typically to between half and double the degree of support that would do all the respiratory work. A third measure of ventilation, for example instantaneous ventilation low pass filtered with a time constant of 5 seconds, is calculated. Ventilatory support is in phase with the subject's respiratory airflow to the fuzzy extent that this ventilation is above target, and at a preset rate conversely. | 11-03-2011 |
20110271959 | MONITOR FOR MEASURING IMPROVEMENT IN INVOLUNTARY BREATHING - The present invention is a breathing improvement monitor that continuously measures involuntary breathing. The monitor is a sensor apparatus that is attached to a patient's mask which is connected to the monitoring apparatus. The sensor may be reusable and attachable and detachable to a mask or it may be an integral part of a breathing mask. The sensor technology may be any type sufficient in the art, including but not limited to solid state sensors, transducers, electromagnetic microturbines and the like. Since the mask does not have to be removed and the sensor provides constant signal to the monitoring apparatus, a real time status of a patient's involuntary breathing capability may be determined for a doctor's consideration. | 11-10-2011 |
20110284003 | MECHANICAL VENTILATION IN THE PRESENCE OF SLEEP DISORDERED BREATHING - A method for controlling operation of a CPAP apparatus. The apparatus has a blower, a patient interface, an air delivery conduit for delivering air from the blower to the patient interface, a sensor for determining the pressure in the patient interface, and a control mechanism that causes air to be delivered at a desired pressure to the patient interface and that detects transitions between inhalation and exhalation of a respiratory cycle of a patient in order to synchronise the blower output with the patient's efforts. In one form the CPAP apparatus provides pressure in accordance with a bi-level waveform with at least one characterising parameter of the waveform being automatically adjusted in accordance with indications of sleep disordered breathing. The indications of sleep disordered breathing can be one or more of snoring, apnea, hypopnea, and flow limitation. | 11-24-2011 |
20110290252 | CLOSED LOOP RESPIRATORY SUPPORT DEVICE WITH DYNAMIC ADAPTABILITY - The invention provides an automatic system based on the dynamic adaptability strategy for controlling oxygen concentration in blood of patients with fluctuating oxygen needs. The inventive system monitors patient's clinical measurement data and updates the system continuously, which provides changes in FiO | 12-01-2011 |
20110297155 | PATIENT-VENTILATOR DYSSYNCHRONY DETECTION - A method of detecting dyssynchrony between a patient and a pressure support system includes receiving patient flow data relating to a flow of gas provided to the patient by the pressure support system, receiving an I/E state signal representing a respiratory phase of the patient as determined by the pressure support system, and analyzing the patient flow data and the I/E state signal and declaring a dyssynchrony for a breath based on at least one of the patient flow data and the I/E state signal. The method includes determining whether at least one of a number of predetermined criterion is satisfied based on at least one of the patient flow data and the I/E state signal, and declaring the dyssynchrony for the breath if it is determined that at least one of the number of predetermined criterion is satisfied. | 12-08-2011 |
20110297156 | AUTOMATIC PRESSURE TITRATION - A pressure support methodology and system that utilizes at least two, and possibly all three, of information relating to (i) airway patency, i.e., the degree to which the patient's airway is open, (ii) the primary cause of the current sleep disordered breathing event, and (iii) the patient's response to previous pressure changes to automatically titrate pressure when presented with a sleep disordered breathing event. In another embodiment, pressure may be automatically titrated based solely on the primary cause of the sleep disordered breathing event. | 12-08-2011 |
20110303223 | PRESSURE SUPPORT SYSTEM WITH MACHINE DELIVERED BREATHS - A method of operating a ventilator or pressure support system that automatically determines a timed back up rate for the patient based on the patient's spontaneous breathing patterns. The aggressiveness of the determined rate increases as the patient takes less spontaneous breaths. Also, a method wherein one or more mechanisms are used to determine whether a machine breath should be issued. Each mechanism consists of a basic timing element coupled with one or more logical permits. Both the timing element and each of the one or more logical permits must be satisfied to allow the timing mechanism to trigger a machine breath. | 12-15-2011 |
20110315140 | PORTABLE OXYGEN CONCENTRATOR - A vacuum pressure swing absorption system provides portable oxygen to medical patients. A pair of sieve beds are alternately pressurized with air and evacuated by vacuum by coordinated operation of a selector valve and a vent valve. Product gas flows from both sieve beds through respective check valves to a product tank. An equalization valve is operated in coordination with the selector valve and the vent valve to open a flow path between the sieve beds and allow pressure to equalize therebetween. Operation of the vent valve is time to occur after pressure in the sieve beds has equalized. Components of the concentrator are tuned so that the equalization pressure occurs at about zero pounds per square inch (psi). This reduces energy loss due to free expansion of gasses and reduces noise created by the venting of gasses to the ambient atmosphere. | 12-29-2011 |
20110315141 | INTRA-ORAL CONTINUOUS POSITIVE AIRWAY PRESSURE (CPAP) INTERFACES - The present invention provides intra-oral interfaces, systems and methods for preventing sleep apnea, the interfaces comprises a conduit adapted to receive continuous positive airway pressure (CPAP) from a CPAP source, and for delivering positive air pressure to a mouth of a patient, a mouthpiece through which the conduit extends, the mouthpiece having a portion configured to reside between the teeth and inner part of the lips and cheeks in the mouth of the patient; and an active seal associated with the mouthpiece, the active seal having at least a portion thereof adapted to reside in a buccal vestibulum of the patient, the active seal being configured to bulge and contract as the patient breathes. | 12-29-2011 |
20120000466 | System and Method for Improved Treatment of Sleeping Disorders using Therapeutic Positive Airway Pressure - Described is a method and system providing therapeutic positive airway pressure to a particular area of patient's airways. The system may include a flow generator and a processing arrangement. The flow generator supplies an airflow to an airway of the patient. The processing arrangement is connected to the flow generator to control a supply pressure at which the airflow is generated by the flow generator. The processing arrangement continuously adjusts the supply pressure to maintain a pressure in a predetermined portion of the patient's airway substantially constant. The predetermined portion of the patient's airway includes a collapsible portion of an upper airway of the patient. The processing arrangement also controls the supply pressure to maintain the pressure in the collapsible portion of the patient's airway at a value at least as great as a tissue pressure below which the collapsible portion collapses. | 01-05-2012 |
20120006327 | Method and Device for Determining a Level of Ventilatory Assist to a Patient - A method and device for determining a level of ventilatory assist to be delivered to a patient by a mechanical ventilator in response to a measure of a patient's neural respiratory drive multiplied by an amplification factor, wherein an existing predicted ventilatory assist pressure is calculated and an existing resulting pressure delivered to the patient by the mechanical ventilator is measured. The amplification factor is changed from an existing amplification factor to a new amplification factor, a new predicted ventilatory assist pressure is calculated using the new amplification factor, and a new resulting pressure delivered to the patient by the mechanical ventilator after the amplification factor has been changed is measured. The new and existing predicted ventilatory assist pressures are compared to determine an anticipated change in pressure that will be delivered to the patient, and the new and existing resulting pressures are compared to determine an actual change in pressure delivered to the patient by the mechanical ventilator. The anticipated and actual changes in pressure are compared and a decision to increase, maintain or decrease the amplification factor is delivered in response to the comparison between the anticipated change and the actual change in pressure. | 01-12-2012 |
20120006328 | METHOD AND APPARATUS FOR PROVIDING VENTILATORY ASSISTANCE - The apparatus provides for the determination of the instantaneous phase in the respiratory cycle, subject's average respiration rate and the provision of ventilatory assistance. A microprocessor ( | 01-12-2012 |
20120012110 | METHODS AND APPARATUS FOR VARYING THE BACK-UP RATE FOR A VENTILATOR - A ventilator device delivers ventilatory support to a patient in a back up timed mode when patient respiration is not detected or a spontaneous mode when patient respiration is detected. The timing threshold governing the back-up mode is chosen to deviate from normal expected respiration time for the patient to promote patient initiated ventilation in the spontaneous mode but permit back-up ventilation in the event of apnea. Automated adjustments to the timing threshold during the timed mode are made from the less vigilant timing threshold to a more vigilant threshold at or near a timing of normal expected breathing of the patient. Such adjustments may be made from a minimum to a maximum vigilance timing settings or incrementally there between as a function of time in the timed mode which is preferably the number of delivered machine breaths. | 01-19-2012 |
20120024287 | SYSTEM AND METHOD FOR PROVIDING FEEDBACK TO A SUBJECT REGARDING RECEPTION OF POSITIVE AIRWAY SUPPORT THERAPY - A system and method provide feedback to a subject regarding compliance to a positive airway pressure support therapy regime. The feedback is provided to the subject in real-time (or near real-time). The feedback indicates to the subject whether a usage goal has been achieved. The usage goal may be dynamically and adaptively determined based on past usage by the subject. This may facilitate the automatic generation of usage goals for the subject that are realistic and gradually increase the compliance of the subject over time. | 02-02-2012 |
20120024288 | APPARATUS AND METHOD FOR SUPPLYING A RESPIRATORY GAS - An apparatus for supplying a respiratory gas to a patient within the scope of the diagnosis and/or the treatment of sleep-related breathing disorders includes an electronic signal processing device for generating a pressure control signal on the basis of indicative signals relating to the breathing activity and/or the physiological state of a person. The signal processing device comprises a signal inputting device and an extraction device for generating data field entries according to predefined signal analysis procedures. A pressure signal generator is provided for generating the pressure control signal, taking into account determined data field entries which are at least selected by the extraction device. | 02-02-2012 |
20120037159 | DETECTION OF ASYNCHRONY - A controller or processor(s) ( | 02-16-2012 |
20120055477 | OXYGEN CONCENTRATOR APPARATUS CONFIGURED FOR HIGH ALTITUDE USE - Described herein are various embodiments of an oxygen concentrator system. In some embodiments, an oxygen concentrator system includes a controller that compensates for the ambient pressure. | 03-08-2012 |
20120055478 | POSITIVE PRESSURE THERAPY SYSTEMS AND METHODS - Described herein are various embodiments of an oxygen concentrator system. In some embodiments, an oxygen concentrator system may be used to provide oxygen enriched gas to a patient undergoing positive pressure therapy. | 03-08-2012 |
20120055479 | RESPIRATOR AND ADJUSTMENT METHOD FOR SAME - A respirator for respiration of a patient having an interface ( | 03-08-2012 |
20120060840 | VENTILATION SYSTEM - A ventilation system having a processor in communication with a mechanical ventilator and a user interface for allowing an individual to operate the system with little or no respiratory care expertise until a respiratory care practitioner can take over operation is disclosed. The ventilation system further includes a function that permits seamless transition between modes of operation. | 03-15-2012 |
20120090611 | Systems And Methods For Controlling An Amount Of Oxygen In Blood Of A Ventilator Patient - This disclosure describes systems and methods for controlling blood oxygen saturation (SpO | 04-19-2012 |
20120103337 | Device and Methods for Applying Therapeutic Protocols to Organs of the Cardiopulmonary System - The invention is a device for the introduction of a fluid into a human's airway. The air so introduced has a carefully modulated envelope of pressure vs. time, this envelope generally consisting of sequences of pressurized air packets of controlled frequency and pressures. The device produces these packets by means of pressurized air occluded by a shutter action which “chops” and interrupts the fluid stream. The vibrations induced by the device within human organs have been shown to have beneficial effects on various bodily systems, such as increase in heart rate variability, increase in absorbed oxygen, decrease in absorbed CO2, and the like. | 05-03-2012 |
20120111329 | DEVICE AND METHOD FOR ASSISTING A COUGH - The invention provides a device ( | 05-10-2012 |
20120118290 | Detection of Dynamic Hyperinflation in Spontaneously Breathing Mechanically Ventilated Patients - A method and device for determining dynamic hyperinflation during mechanical ventilation of a spontaneously breathing patient, wherein mechanical ventilation is removed during one breath of the patient, inspiratory and expiratory volumes of the patient are measured during the one breath, and a difference between the inspiratory and expiratory volumes measured during the one breath is calculated. Dynamic hyperinflation of the patient's lungs is indicated in relation to the calculated difference. | 05-17-2012 |
20120125336 | ADJUSTMENT OF VENTILATOR PRESSURE-TIME PROFILE TO BALANCE COMFORT AND EFFECTIVENESS - The invention is a ventilator whose servo-controller adjusts the degree of support by adjusting the profile of the pressure waveform as well as the pressure modulation amplitude. As the servo-controller increases the degree of support by increasing the pressure modulation amplitude, it also generates a progressively more square, and therefore efficient, pressure waveform; when the servo-controller decreases the degree of support by decreasing the pressure modulation amplitude, it also generates a progressively more smooth and therefore comfortable pressure waveform. | 05-24-2012 |
20120125337 | DEVICE FOR CALCULATING RESPIRATORY WAVEFORM INFORMATION AND MEDICAL INSTRUMENT USING RESPIRATORY WAVEFORM INFORMATION - Provided is a configuration capable of executing a detection test for a comfort level including the quality of sleep, which is measurable at home without requiring the measurement of brain waves or electrocardiogram. The respiratory waveform of a subject during sleep is continuously measured and recorded from the respiratory gas flow, etc., and is window-Fourier transformed at each measurement time to generate a frequency spectrum, and a bandwidth including a respiratory frequency is extracted. The index indicating the regularity of the respiratory period of the subject is also calculated at each time point during the sleep, and the time-dependency of this index during the sleep is represented as a graph. A medical device includes a sleep evaluation system equipped with a control means for performing control so that a sleep cycle repeated at a cycle of about 90 minutes is clearly observed if the comfort level including the quality of sleep of the subject is favorable. | 05-24-2012 |
20120138057 | System and Method of Automated Lung Recruitment Maneuvers - A method of providing a recruitment procedure to a patient includes monitoring at least derecruitment event. A score is calculated for the at least one derecruitment event. A derecruitment score is aggregated. The derecruitment score is compared to a recruitment threshold. A ventilator is operated with the processor to perform a recruitment procedure. A system for providing mechanical ventilation to a patient includes a mechanical ventilator configured for pneumatic connection to a patient in order to deliver medical gas to the patient. A peripheral system is configured to provide medical assistance to the patient and the peripheral system produces a signal indicative of the operation of the peripheral system. A processor is communicatively connected to the mechanical ventilator in the peripheral system. The processor receives the signal from the peripheral system and calculates a first score from the signal. The processor aggregates the first score into a derecruitment score and compares the derecruitment score to a predetermined threshold. The processor operates the mechanical ventilator to provide a recruitment procedure to the patient. | 06-07-2012 |
20120138058 | SINGLE STAGE, AXIAL SYMMETRIC BLOWER AND PORTABLE VENTILATOR | 06-07-2012 |
20120145152 | INTEGRATED PULMONARY INDEX FOR WEANING FROM MECHANICAL VENTILATION - There is provided herein a system for weaning a patient from mechanical ventilation (MV), the system comprising a ventilation device and a controller comprising an interface module configured to receive two or more measured patient parameters, wherein at least one measured patient parameters parameter comprise a CO | 06-14-2012 |
20120145153 | SETUP AUTOMATION FOR RESPIRATORY TREATMENT APPARATUS - A respiratory treatment apparatus implements pressure delivery control settings by improved set-up procedures. In such an embodiment, a processor may automate setting of parameters for delivering a controlled flow of breathable gas. Data sets of pressure delivery parameter settings may be associated with one or more respiratory pathology indicators. The respiratory pathology indicators may each represent a different respiratory condition diagnosis. The processor may then prompt for an input of at least one of the respiratory pathology indicators. In response to the input, a particular set of pressure delivery parameter settings associated with the input respiratory pathology indicator may then serve as a basis for setting controls for delivering a controlled flow of breathable gas for respiratory treatment. | 06-14-2012 |
20120145154 | SYSTEM AND METHOD FOR QUANTIFYING LUNG COMPLIANCE IN A SELF-VENTILATING SUBJECT - The lung compliance of a subject that is at least partially self-ventilating is determined. The quantification of lung compliance may be an estimation, a measurement, and/or an approximate measurement. The quantification of lung compliance may be enhanced over conventional techniques and/or systems for quantifying lung compliance of self-ventilating subjects in the lung compliance may be quantified relatively accurately without an effort belt or other external sensing device that directly measures diaphragmatic muscle pressure, and without requiring the subject to manually control diaphragmatic muscle pressure. Quantification of lung compliance may be a useful tool in evaluating the health of the subject, including detection of fluid retention associated with developing acute congestive heart failure. | 06-14-2012 |
20120152249 | PROCESS FOR THE AUTOMATIC CONTROL OF A RESPIRATOR - A process for the automatic control of a respirator with a changeover between phases of respiration (inspiration and expiration), by a control unit checking a breathing activity signal for a threshold criterion. If the threshold criterion is met, a changeover is made and the control unit controls the fan of the respirator such that a pneumatic respiration variable (airway pressure, flow) is brought from an actual value to a preset target value for the new phase of respiration. The control unit further divides the change in the respiration variable, from the actual value to the target value, into a plurality of partial steps and checks the current breathing activity signal for the threshold criterion after each partial step. If this threshold criterion is no longer met, the state of operation of the respirator returns to the state before the last changeover, and otherwise, continues with the next partial step. | 06-21-2012 |
20120152250 | PROCESS FOR THE AUTOMATIC CONTROL OF A RESPIRATOR - A process is provided for the automatic control of a respirator for changing over (triggering) between consecutive phases of respiration (inspiration and expiration phases), wherein a pneumatic breathing activity signal u | 06-21-2012 |
20120152251 | PROCESS FOR THE AUTOMATIC CONTROL OF A RESPIRATOR - A process for automatic control of a respirator changes between two phases of respiration by checking a detected respiratory breathing activity signal for a threshold criterion. If the threshold criterion is met, a changeover is made. A dynamic threshold curve, used for changing over into an inspiration phase, is held, after the beginning of the present expiration phase, at high values until the end of a selected inspiratory refractory period, and is then lowered monotonically, dropping to an inspiratory threshold target value at the expected point in time of the phase duration maximum of the present expiration phase. A dynamic threshold curve, which is held at low values, after the beginning of the present inspiration phase, until the end of a selected expiratory refractory period, is raised monotonically, increasing to an expiratory threshold target value at the expected point in time of the phase duration maximum of the present inspiration phase and is then changed over into the expiration phase when the breathing activity signal drops below the threshold curve for the expiration. The phase duration of the inspiration and expiration phases or breath duration (inspiration and expiration phases) is stored in each case, and the expected points in time of the phase duration maxima are derived from the distributions of the phase durations in relation to the beginning of the respective phase of respiration or from the distribution of the breath durations in relation to the beginning of the previous phase of respiration. | 06-21-2012 |
20120152252 | AUTO-TITRATION BI-LEVEL PRESSURE SUPPORT SYSTEM AND METHOD OF USING SAME - A bi-level pressure support system and method of treating disordered breathing that optimizes the pressure delivered to the patient during inspiration and expiration to treat the disordered breathing while minimizing the delivered pressure for patient comfort. The pressure generating system generates a flow of breathing gas at an inspiratory positive airway pressure (IPAP) during inspiration and at an expiratory positive airway pressure (EPAP) during expirations. A controller monitor at least one of the following conditions: (1) snoring, (2) apneas, (3) hypopneas, or (4) a big leak in the pressure support system and adjusts the IPAP and the EPAP based on the occurrence of any one of these conditions. | 06-21-2012 |
20120160243 | MACRO-CONTROL OF TREATMENT FOR SLEEP DISORDERED BREATHING - A method and apparatus for treating sleep disordered breathing. An arousal index is determined for use in an outer loop of a control algorithm, the arousal index being a measure of the frequency of sleep arousals. The respiratory airflow signal in an inner loop of the control algorithm is monitored to detect an airway obstruction. If the arousal index is high, then the sensitivity of obstruction detection and/or the aggressiveness of the treatment is increased, and if the arousal index is low, then the sensitivity of the obstruction detection and/or the aggressiveness of the treatment is decreased. | 06-28-2012 |
20120160244 | ADAPTABLE OXYGEN REGULATOR SYSTEM AND METHOD WITH AN ELECTRONIC CONTROL DEVICE - A system and method for an adaptable oxygen regulator with an electronic control device is disclosed. In one embodiment, an oxygen regulator system includes an electronic control device which includes a non-volatile memory for storing a first reference point. The electronic control device also includes a pressure sensor configured for generating pressure data of the pressurized aircraft cabin. The electronic control device further includes a logical control unit for generating a control signal by processing the first reference point and the pressure data. Further, the electronic control unit includes a rotary actuator for generating a rotary displacement based on the control signal. Moreover, the oxygen regulator system includes a demand dilution oxygen regulator coupled to the electronic control unit and configured to control the supply of oxygen and the flow of dilution air from the pressurized aircraft cabin based on the control signal. | 06-28-2012 |
20120167885 | Systems And Methods For Ventilation To Obtain A Predetermined Patient Effort - Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a ventilation system is disclosed that includes a computer readable medium including instructions executable by a processor to receive a measured pressure value and a net flow value. A patient effort value is calculated based on a relationship between patient effort, the measured pressure value and the net flow value. The instructions are further executable to calculate a gas delivery metric based on the computed patient effort to obtain a predetermined patient effort. Gas is then caused to be delivered consistent with the gas delivery metric. | 07-05-2012 |
20120199124 | Positive Airway Pressure System With Head Position Control - The invention is directed to a positive airway pressure (PAP) system with a head mounted harness assembly with a housing and a head position sensor located within or secured to the housing that detects the position of a patient's head, and communicates this head position information to a controller of the system which may be disposed within the housing having the position sensor or a second housing. The controller varies the output pressure of the pressure source, e.g. a rotary compressor, based, at least in part, on the head position information provided by the head position sensor. In a preferred embodiment, the position sensor is an accelerometer. | 08-09-2012 |
20120199125 | Positive Airway Pressure System With Head Control - The invention is directed to a positive airway pressure (PAP) system with a head mounted harness assembly with a housing and a head position sensor located within or secured to the housing that detects the position of a patient's head, and communicates this head position information to a controller of the system which may be disposed within the housing having the position sensor or a second housing. The controller varies the output pressure of the pressure source, e.g. a rotary compressor, based, at least in part, on the head position information provided by the head position sensor. In a preferred embodiment, the position sensor is an accelerometer. | 08-09-2012 |
20120199126 | Modification of Sympathetic Activation and/or Respiratory Function - Devices, systems and methods are disclosed for modifying sympathetic activation of a patient through alteration of respiratory function. In one form, a sub-apneic ventilation target for a ventilator is determined such that chronic sympathetic activation of the patient is mitigated. | 08-09-2012 |
20120199127 | SYSTEM AND METHOD FOR SUCTIONING FOR SECRETION REMOVAL FROM THE AIRWAY OF A MECHANICALLY VENTILATED SUBJECT - Secretions that have accumulated at or near an airway of a subject ( | 08-09-2012 |
20120211008 | SYSTEMS AND METHODS FOR MANAGING PRESSURE IN A BREATHING ASSISTANCE SYSTEM - A breathing assistance system for providing breathing assistance to a patient is provided. The breathing assistance system may include a ventilation system for supplying a gas flow, a conduit operatively coupled to the ventilation system, and a pressure sensor configured to measure the pressure of the gas flow through the conduit. The pressure sensor may include a structure configured to create a localized pressure drop in the gas flow proximate the pressure sensor structure. | 08-23-2012 |
20120216810 | Methods And Systems For Transitory Ventilation Support - This disclosure describes systems and methods for providing a transitory ventilation support breath type during ventilation of a patient. The disclosure describes a novel breath type that provides for a beneficial transition between an assist breath type and an effort-based breath type and/or a breath type that is beneficial for weak patients. | 08-30-2012 |
20120216811 | Use of Multiple Spontaneous Breath Types To Promote Patient Ventilator Synchrony - The present disclosure combines the advantages of a hybrid mode of ventilation with an automatic determination of an appropriate spontaneous breath type in response to one or more patient based criteria. Specifically, when the ventilator is delivering a spontaneous breath type, a determination may be made as to whether predetermined ventilatory criteria have been met. Based on the determination the ventilator may deliver one of any number of spontaneous breath types. | 08-30-2012 |
20120227739 | DRUG ADMINISTRATION CONTROLLER - A drug administration controller has a sensor that generates a sensor signal to a physiological measurement device, which measures a physiological parameter in response. A control output responsive to the physiological parameter or a metric derived from the physiological parameter causes a drug administration device to affect the treatment of a person, such as by initiating, pausing, halting or adjusting the dosage of drugs administered to the person. | 09-13-2012 |
20120227740 | ADMINISTRATION OF CPAP TREATMENT PRESSURE IN PRESENCE OF APNEA - CPAP treatment apparatus is disclosed having a controllable flow generator ( | 09-13-2012 |
20120240934 | SYSTEM FOR CONTROLLING APENA - An implanted stimulation device or air control device are activated by an external radar-like sensor for controlling apnea. The radar-like sensor senses the closure of the air flow cavity, and associated control circuitry signals (1) a stimulator to cause muscles to open the air passage way that is closing or closed or (2) an air control device to open the air passage way that is closing or closed. | 09-27-2012 |
20120247471 | Systems And Methods For Automatic Adjustment Of Ventilator Settings - Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a ventilation system is disclosed that includes a computer readable medium including instructions for operating in a hybrid mode. These instructions include measuring patient effort during a spontaneous breath type and deriving a neural inspiratory time from the measurements of patient effort. This neural inspiratory time is then set as the inspiratory for a breath of a mandatory breath type. If new patient effort measurements are received by the ventilator, the neural inspiratory time may be adjusted. | 10-04-2012 |
20120247472 | Systems and Methods for Diagnosing and Treating Sleep Disorders - A method for diagnosing and treating sleep disorders with a sleep therapy auto-titrator for in-home use by the patient includes the step of collecting, recording and analyzing sleep data in real time with the auto-titrator. Corrective action is provided in real time to the patient to mitigate sleep events based upon the collected sleep data. The collected sleep data is transmitted, via a global computer information system, to a remote server for storage. The stored sleep data is analyzed by a computer programmed with an algorithm to monitor therapy effectiveness daily and for identifying one or more therapy intervention recommendations. An alert is provided to at least one of the patient or a sleep therapy professional associated with the patient communicating the one or more intervention recommendations. | 10-04-2012 |
20120255552 | METHOD AND APPARATUS FOR TREATING CHEYNE-STOKES RESPIRATION - A system and method for delivering a flow of breathing gas to an airway of a patient. The system monitors a characteristic that varies based on variations of the flow of the breathing gas and determines a Target Flow for the gas to be delivered to the patient based on the monitored characteristic. The Target Flow is set to a level sufficient to treat Cheyne-Stokes respiration or a sleep disordered breathing event. The system also alters the Target Flow based on a determination that the patient is experiencing a sleep disordered breathing event. The system further determines a pressure relief component and controls the flow of gas delivered to the patient based on the Target Flow and the pressure relief component. | 10-11-2012 |
20120266882 | APPARATUS FOR RESPIRATORY SUPPORT AND NON-INVASIVE DETECTION OF ALVEOLAR DERECRUITMENT FOR PATIENTS SUFFERING FROM RESPIRATORY FAILURE - Apparatus for respiratory support and non-invasive detection of alveolar recruitment/derecruitment provides air supply to a patient at a base pressure and an additional pressure which can be varied at a frequency of from 5 to 10 Hz and transducers applied to the conduits supplying air to the patient to send electric signals to a computer to obtain a variable positive end-expiratory pressure and a to obtain an end expiratory resistance at varying values of positive end expiratory pressure and defining the state of pulmonary recruitment as the value of the positive end-expiratory pressure which corresponds to a point of maximum expiratory resistance. | 10-25-2012 |
20120272960 | Methods and Systems for Volume-Targeted Minimum Pressure-Control Ventilation - This disclosure describes systems and methods for providing a volume-targeted minimum pressure-control breath type during ventilation of a patient. The disclosure describes a novel breath type that allows an operator to input a tidal volume and receive some of the benefits of utilizing an airway pressure release ventilation (APRV) breath type in combination with some of the benefits of utilizing a volume-targeted-pressure-control (VC+) breath type. | 11-01-2012 |
20120272961 | METHODS AND SYSTEMS FOR EXHALATION CONTROL AND TRAJECTORY OPTIMIZATION - This disclosure describes systems and methods for controlling pressure and/or flow during exhalation. The disclosure describes novel exhalation modes for ventilating a patient. | 11-01-2012 |
20120272962 | METHODS AND SYSTEMS FOR MANAGING A VENTILATOR PATIENT WITH A CAPNOMETER - This disclosure describes systems and methods for managing the ventilation of a patient being ventilated by a medical ventilator. The disclosure describes a novel approach of displaying integrated ventilator information with capnometer data. The disclosure further describes a novel approach for determining if the ventilator breathing circuit is occluded or disconnected. | 11-01-2012 |
20120272963 | INTERFACE APPLIANCE CARRYING ONE OR MORE SENSORS DETECTING PARAMETERS RELATED TO A FLOW OF FLUID DELIVERED THROUGH THE APPLIANCE - An interface appliance is configured to deliver a flow of fluid to the airway of a subject. The generation of the flow of fluid may be controlled to provide a therapeutic benefit to the subject. The interface appliance is configured to carry one or more sensors ( | 11-01-2012 |
20120272964 | MOBILE RESPIRATOR - A respiration device with a respirator ( | 11-01-2012 |
20120285456 | Automated Inspiratory Muscle Training for Patients Receiving Mechanical Ventilation - A system and method for automated inspiratory muscle strength exercise includes software for setting a mechanical ventilator for a pressure regulated breath with an initial pressure target that is at the highest pressure setting a patient can tolerate and increasing the pressure target as tolerated. | 11-15-2012 |
20120291784 | METHOD AND SYSTEM FOR VISUALIZING MECHANICAL VENTILATION INFORMATION - Methods and systems for visualizing mechanical ventilation information are provided. One system includes a user interface for a medical system having a ventilator is provided. The user interface includes a memory storing one or more sensor measurements for a patient and a processor. The processor is programmed to display a visualization of a tidal volume determined from one of the sensor measurements of the patient and display a visualization of lung compliance for the patient, wherein the tidal volume visualization and the lung compliance visualization are displayed concurrently. | 11-22-2012 |
20120291785 | METHODS AND APPARATUS FOR ADAPTABLE PRESSURE TREATMENT OF SLEEP DISORDERED BREATHING - Respiratory pressure treatment apparatus include automated methodologies for controlling changes to pressure in the presence of sleep disordered breathing events. In an example apparatus, various levels of expiratory pressure relief can provide different pressure reductions for patient comfort during expiration ( | 11-22-2012 |
20120298108 | AUTOMATICALLY CONTROLLED VENTILATION SYSTEM - A system for controlling and regulating breathing gas supplied to a patient that includes a pressure generator system that provides breathing gas to a patient and a patent circuit that delivers the breathing gas to the patient. The system includes an interface device coupled to the patient circuit to communicate the flow of gas to the patient' airway. A sensor detects a parameter indicative of a flow of breathing gas delivered to the patient. A controller coupled to the sensor and the pressure generator system measures at least one characteristic of respiratory airflow of a patient and calculates a target breath-amplitude-based parameter and a time-based parameter of at least a portion of the patient's respiratory cycle to be delivered to the patient based on the at least one characteristic of respiratory airflow. | 11-29-2012 |
20120304995 | Previous Set Up Mode Parameter Retention - The present application describes a previous mode button that allows a clinician to select any previously administered ventilation mode for a patient such that the previously input ventilation parameters for the selected ventilation mode will be used during ventilation. Upon receiving the selection of the previous mode button, a first stored previous mode and first ventilation parameters associated with the first stored previous mode are displayed. A determination is then made as to whether the displayed first stored previous mode is an appropriate mode. If the displayed first stored previous mode is an appropriate mode, ventilation is administered using the first stored previous mode and first ventilation parameters. If a determination is made that the first stored previous mode is not appropriate, a second stored previous mode is retrieved and displayed. | 12-06-2012 |
20120304996 | Compressed Air Control Device for a CPAP Device and Corresponding CPAP System - The present invention relates to a compressed air control device for a CPAP device and to a corresponding CPAP system. The compressed air control device comprises: a pressure measuring device ( | 12-06-2012 |
20120304997 | LEAK-COMPENSTATED PROPORTIONAL ASSIST VENTILATION - This disclosure describes systems and methods for compensating for leakage when during delivery of gas from a medical ventilator in a proportional assist mode to a patient. The technology described herein includes systems and methods to compensate the delivery of PA ventilation for leakage in the patient circuit by using leak-compensated lung flows as well as leak-compensated respiratory mechanics parameters (lung compliance and lung resistance) estimated in a manner that compensates for elastic and inelastic leaks from the ventilation system. | 12-06-2012 |
20120304998 | RESPIRATORY APPARATUS WITH IMPROVED FLOW-FLATTENING DETECTION - In a respiratory apparatus for treatment of sleep apnea and other disorders associated with an obstruction of a patient's airway and which uses an airflow signal, an obstruction index is generated which detects the flattening of the inspiratory portion of the airflow. The obstruction index is used to differentiate normal and obstructed breathing. The obstruction index is based upon different weighting factors applied to sections of the airflow signal thereby improving sensitivity to various types of respiration obstructions. | 12-06-2012 |
20120318266 | AIR DELIVERY SYSTEM - An air delivery system is provided. The air delivery system includes a PAP device having a flow generator, a patient interface, a processor and a connector, and at least a removable sensing device having at least a sensor, a front-end analog circuit and a connector. The sensor is integrated with the patient interface to measure a respiratory characteristic in a path between the patient's upper airway and the flow generator. When the removable sensing device is separated from the PAP device, the PAP device enters a first operation mode to perform a first preset air delivery behavior, and when the removable sensing device is coupled to the PAP device through the connectors respectively thereof, the PAP device enters a second operation mode to perform a second air delivery behavior for adjusting the treatment pressure in accordance with the respiratory characteristic. | 12-20-2012 |
20120318267 | Providing Automated or Manual Guidance on Dynamic Patient Positioning Based on Measured Variables for Ventilation Control - Methods and systems that incorporate automated or manual control of ventilation and kinetic rotation therapy are provided. In one exemplary embodiment, an artificial ventilator is used to artificially ventilate one of the patient's lungs, the status of the artificially ventilated lung is determined by measuring one or more ventilation status measures, and one or more of the ventilation status measures is used to provide feedback for controlling the positioning of the patient. In some exemplary embodiments, the feedback is used for automated control of the positioning of the patient, while in other exemplary embodiments, the feedback is used as guidance for manual control of the positioning of the patient. | 12-20-2012 |
20120318268 | VENTILATION METHOD AND VENTILATION DEVICE - The present invention relates to a method for the ventilation of a living being ( | 12-20-2012 |
20120325211 | VENTILATION MASK WITH INTEGRATED PILOTED EXHALATION VALVE AND METHOD OF VENTILATING A PATIENT USING THE SAME - In accordance with the present invention, there is provided a mask for achieving positive pressure mechanical ventilation (inclusive of CPAP, ventilator support, critical care ventilation, emergency applications), and a method for a operating a ventilation system including such mask. The mask of the present invention includes a piloted exhalation valve that is used to achieve the target pressures/flows to the patient. The pilot for the valve may be pneumatic and driven from the gas supply tubing from the ventilator. The pilot may also be a preset pressure derived in the mask, a separate pneumatic line from the ventilator, or an electro-mechanical control. Additionally, the valve can be implemented with a diaphragm or with a flapper. | 12-27-2012 |
20120325212 | Method And Apparatus For Providing Positive Airway Pressure To A Patient - Methods and apparatus for treatment of medical disorders such as obstructive sleep apnea and congestive heart failure are disclosed. A method involves delivering pressurized air, oxygen or other breathing gas to a patient during a respiratory cycle, where pressure of the air is decreased according to an expiratory unloading factor during expiration. The timing and magnitude of the pressure change may be fully automated and responsive to feedback from a motor load sensor, optionally in combination with a pressure sensor. | 12-27-2012 |
20130000644 | SYSTEMS AND METHODS FOR PROVIDING VENTILATION BASED ON PATIENT NEED - A ventilation system includes a controller and an alarm module in communication with the controller. The alarm module includes an alarm and an alarm emitter indicating activation of the alarm, wherein the alarm may be one or more of the following alarms: low pressure, low volume, low respiration rate, low minute volume, disconnect condition, and apnea. When the controller is in a first mode setting, the alarm emitter is activated in response to a triggering event, and when the controller is in a second mode setting, the alarm emitter is not activated in response to the triggering event. The ventilation system may include a breathing circuit, an airflow generator for delivering a ventilation airflow to the breathing circuit, and a sensor for sensing an increase in at least one of an air flow or an air pressure within the breathing circuit, thus triggering airflow. | 01-03-2013 |
20130025596 | METHODS AND SYSTEMS FOR MODEL-BASED TRANSFORMED PROPORTIONAL ASSIST VENTILATION - This disclosure describes systems and methods for providing a model-based transformed proportional assist breath type during ventilation of a patient. The disclosure describes a novel breath type that delivers a target pressure calculated based on a predetermined trajectory and a support setting to a triggering patient. | 01-31-2013 |
20130025597 | METHODS AND SYSTEMS FOR MONITORING A VENTILATED PATIENT WITH AN OXIMETER - This disclosure describes systems and methods for monitoring the ventilation of a patient being ventilated by a medical ventilator. The disclosure describes a novel approach for triggering the delivery of a breath to account for cardiogenic artifacts. The disclosure further describes a novel approach for calculating exhaled spirometry to eliminate the effect of cardiogenic artifacts. | 01-31-2013 |
20130025598 | OXYGEN DELIVERY SYSTEM - The present disclosure is directed to an oxygen delivery system that distributes oxygen-enriched air around a patient's head and face without requiring a physical connection to the patient. The oxygen is distributed by the system through one or more fluid outputs, which are operatively connected to an oxygen supply line either directly or indirectly through at least one fluid transmission line, manifold or plenum. This directed oxygen mixes with the air surrounding the patient to produce an oxygen-enriched environment at the exit side of the fluid outputs. | 01-31-2013 |
20130037028 | SESSION-BY-SESSION ADJUSTMENT OF A DEVICE FOR TREATING SLEEP DISORDERED BREATHING - A method is disclosed for operating a device that treats sleep disordered breathing (SOB) during successive treatment sessions, where the device provides continuous positive airway pressure during sleep. The method comprises the steps of applying a constant treatment pressure during a first session and deriving a sleep disorder index (SOl) representative of the number of SOB episodes that occurred during the first session. If the treatment pressure should be increased based upon the derived SOl, it is increased during a second, subsequent session. | 02-14-2013 |
20130068228 | PATIENT INTERFACES - The present invention relates to a device for delivering a supply of gases to a patient. The device includes a patient interface and connecting member. The connecting member is preferably a L-shaped swiveled connector that is capable of being fixed into one of two positions, a first position where the connector is freely rotatable within the patient interface, and a second position where an interference between the interface and connector prevents the free rotation of the connector within the patient interface, The present invention further relates to a connector that has outlet means, which includes at least one outlet vent and a funnel, which in use directs and passes a substantial portion gases expired from the patient through the outlet vent or vents. | 03-21-2013 |
20130074844 | USE OF MULTIPLE BREATH TYPES - The present disclosure describes a mode of ventilation that makes an automatic determination of an appropriate mandatory breath type in response to one or more patient based criteria. Specifically, the ventilator during the delivery a mandatory breath type determines whether predetermined ventilatory criteria have been met. Based on the determination, the ventilator may deliver one of any number of mandatory breath types. Further, the present disclosure also combines the advantages of a hybrid mode of ventilation with this automatic determination of an appropriate mandatory breath type in response to one or more patient based criteria. | 03-28-2013 |
20130098363 | ENDOTRACHEAL CUFF PRESSURE REGULATION CIRCUIT AND METHOD - Cuff pressure modulation results in decreased severity of injury to the subglottic region and upper trachea. A simple device is capable of modulating the pressure in the cuff of a regular endotracheal tube, by coordinating the pressure level to be maximal during the inspiratory phase and minimal during the expiratory phase. This allowed for regular positive airway pressure ventilation as during inspiration the seal was maintained between the ETT and the tracheal mucosa by the inflated cuff, but during expiration cuff deflation allowed the cuff pressure to drop in the subglottic and tracheal area. | 04-25-2013 |
20130104896 | METHODS AND SYSTEMS FOR GATING USER INITIATED INCREASES IN OXYGEN CONCENTRATION DURING VENTILATION | 05-02-2013 |
20130104897 | HEALTHCARE FACILITY VENTILATION MANAGEMENT | 05-02-2013 |
20130104898 | PRESSURE SUPPORT VENTILATION OF PATIENTS | 05-02-2013 |
20130104899 | RESPIRATOR AND ADJUSTMENT METHOD FOR SAME | 05-02-2013 |
20130118494 | METHODS AND APPARATUS FOR HEART FAILURE TREATMENT - Methods and apparatus for assessing the condition of and treating patients for heart failure by the delivery of continuous positive airway pressure are disclosed. Treatment of obstruction due to reflex vocal cord closure often experienced by heart failure patients is distinguished from treatment of upper airway obstruction typically associated with Obstructive Sleep Disorder. Treatment may also be implemented by delivering synchronized cardiac pressure oscillations superimposed on a respiratory pressure level to provide assistance for the heart. Heart treatment pressure dose indicator may be calculated for prescribing and monitoring the delivery of treatment. The apparatus may also generate data to track heart failure condition that may be indicative of the degree of severity of heart failure based upon breathing patterns to assist in the diagnosis and management of heart failure patients. | 05-16-2013 |
20130118495 | BREATHING ASSISTANCE APPARATUS - A breathing assistance apparatus operates in alternating inhalation and expiratory phases wherein a) the control means of the apparatus comprise selection means capable of selecting a pressure parameter or a flow rate parameter to define; b) the reference value for the gas source, the selection means are controlled by an automatic control unit being: I) connected to pressure and flow rate sensors situated on the inhalation duct to form a direct closed regulation loop for selecting a reference value parameter, II) associated to a program allowing the selection to be made in real time from a pressure or flow rate signal, so that the association of a direct closed regulation circuit for the selection of a reference value parameter with a valve permitting proportional operation, allows real time control of barometric and volumetric operating modes, between and during the inhalation and expiratory phases. The invention also concerns associated operating processes. | 05-16-2013 |
20130118496 | LEAK ESTIMATION USING FUNCTION ESTIMATION - The disclosed concept maintains that Q | 05-16-2013 |
20130118497 | METHOD FOR SEMANTIC COMMUNICATION OF DEVICE DATA BETWEEN A SOURCE AND RECEIVING CLIENT - A treatment delivery system includes one or more medical therapy delivery devices ( | 05-16-2013 |
20130125891 | SYSTEM AND METHOD FOR DYNAMIC REGULATION OF OXYGEN FLOW RESPONSIVE TO AN OXIMETER - A system is provided for regulating a flow of oxygen to a patient where the system may include an oximeter for measuring the patient's blood oxygen level and/or heart rate; a controller for determining a desired oxygen flow rate based on the patient's blood oxygen level and/or heart rate, and generating a control signal representative of the desired oxygen flow rate; an oxygen flow regulator for dynamically regulating a flow rate of oxygen supplied to the patient responsive to the control signal provided by the controller; an oxygen delivery device; and a transmitter for wirelessly communicating with an electronic medical records system. The oxygen flow regulator may receive oxygen from an oxygen bottle, oxygen mixer, a wall oxygen supply of a healthcare facility, or an oxygen concentrator. One or more of the components of the system may be treated with an antimicrobial material. | 05-23-2013 |
20130125892 | SERVO VENTILATION USING PRESSURE DROP FROM BASELINE - A system and method for delivering a flow of breathing gas to an airway of a patient that includes a gas flow generator and a patient circuit that communicates the flow of gas to an airway of a patient. A sensor measures a characteristic associated with the flow of gas, such as flow rate. A controller determines a first characteristic based on the measured characteristic and a target of the flow of gas to be delivered to the patient. The controller controls the delivery of gas to the patient by 1) providing a baseline positive pressure support amount to the patient and 2) providing a modified pressure support amount by reducing the baseline amount by a given amount if the first characteristic is above the target. The baseline pressure includes a pressure provided during inspiration that is higher than a pressure provided during expiration. | 05-23-2013 |
20130133655 | SYSTEM AND METHOD FOR SUPPORTING SUB-PHYSIOLOGIC AND PHYSIOLOGIC TIDAL VOLUMES IN SPONTANEOUS OR NON-SPONTANEOUS BREATHING DURING HIGH FREQUENCY VENTILATION - A method of providing high frequency ventilation to a patient, comprises delivering a flow of breathing gas to the patient, the flow of breathing gas having a first positive pressure level and a second positive pressure level, the first and second positive pressure levels alternating with one another in a plurality of cycles in the flow of breathing gas to have a frequency and an amplitude, the flow of breathing gas to the patient generating a mean airway pressure; determining whether the patient is breathing spontaneously or is trying to breath spontaneously; and, in response to the determination that the patient is breathing spontaneously or trying to breath spontaneously or according to the user settings for HFV and user intervention for non-spontaneous breathing patient, adjusting the mean airway pressure, modulating the frequency and duty cycle of the flow of breathing gas, or modulating the level of flow and pressure amplitude of the breathing gas, or two or more thereof. | 05-30-2013 |
20130133656 | APPARATUS AND METHOD FOR PROVIDING GASES TO A USER - Apparatus and methods are disclosed for controlling pressure delivery to a user such as a patient. A flow generator generates an outlet flow at an outlet port for delivery to a patient. At least one sensor measures properties of the flow of gas at the outlet port or being delivered to the patient. A controller is operatively connected to the flow generator and the at least one sensor, and is adapted to operate according to a pressure control mode in which the controller controls the flow generator to output a substantially steady pressure or a flow control mode in which the controller controls the flow generator to output a substantially steady flow. The controller operates in the flow control mode when a patient may be awake and in the pressure control mode when the patient may be asleep. | 05-30-2013 |
20130139817 | OXYGEN REGULATION WITH AT LEAST TWO SPO2 MONITORS AND AUTOMATIC RECOGNITION OF A SIGNAL HAVING A HIGHER RATING - A process and a device for oxygen regulation of a patient having at least two SPO | 06-06-2013 |
20130146055 | METHODS AND SYSTEMS FOR ADAPTIVE BASE FLOW - This disclosure describes systems and methods for providing novel adaptive base flow scheduling during ventilation of a patient to optimize the accuracy of estimated exhaled tidal volume. Further, this disclosure describes systems and methods for providing novel adaptive inspiratory trigger threshold scheduling during the novel adaptive base flow scheduling. | 06-13-2013 |
20130146056 | METHOD AND SYSTEM FOR CLASSIFICATION OF PHOTO-PLETHYSMOGRAPHICALLY DETECTED RESPIRATORY EFFORT - Embodiments disclosed herein may include systems and methods for determining a patient's respiratory effort and blood oxygen saturation based on data acquired from a pulse oximetry sensor and analyzing the parameters in conjunction with each other. For example, the respiratory effort may be determined based on a photo-plethysmographic waveform generated from light attenuation detected by the sensor, and the blood oxygen saturation may be a pulse-based estimate of arterial blood oxygen saturation determined from the detected attenuation. Analysis of the parameters may enable detection and classification of apnea (e.g., obstructive or central) or another underlying cause for respiratory instability. Furthermore, the measured respiratory effort may be compared to respiratory effort supplied by a ventilator to ensure proper sensor placement before enabling automatic adjustment of ventilator settings. | 06-13-2013 |
20130146057 | System and Method for Circuits to Allow CPAP to Provide Zero Pressure - A system comprises a respiratory delivery arrangement adapted to cover at least one respiratory orifice of a patient. The system also comprises a first conduit having a first end and a second end, the second end connected to the respiratory delivery arrangement. A positive pressure is provided to the respiratory orifice via the first conduit and a second conduit having a third end and a fourth end, the fourth end connected to the respiratory delivery arrangement. An exhaled gas is extracted from the respiratory orifice by one or both of a valve configured to redirect flow through the respiratory delivery arrangement and a venturi opening. | 06-13-2013 |
20130152932 | Respiratory Treatment Delivery System - Embodiments relate to systems and methods for delivery of oxygen or other treatment gases to a patient without requiring physical contact or enclosure of the patient. Embodiments can include a delivery hood, sensing components, and a gas distribution system including one or more gas delivery ports. Gas delivery ports may be individually controlled based on input from the sensing components to alter the volume and orientation of treatment gas flow directed at a patient. Sensing components can include cameras or other sensors that detect the position of a patient's head, and gas delivery ports may then be controlled to direct treatment gas flow in the direction of the patient's head. Embodiments and methods described thereby allow for efficient oxygen or other gas delivery to a patient without requiring contact or enclosure of the patient. | 06-20-2013 |
20130152933 | AUTOMATED FLUID DELIVERY SYSTEM AND METHOD - An automated fluid delivery system and method are disclosed. The system includes distensible tubing, a flow controller, and a fluid flow adjustment module. The fluid flow adjustment module may be configured to detect differential pressure in the tubing and adjust the flow controller to provide an amount of fluid through the tubing during inhalation. | 06-20-2013 |
20130152934 | ADAPTIVE CYCLING FOR RESPIRATORY TREATMENT APPARATUS - A controller or processor (s) implements detection of respiratory related conditions that may serve as control logic to synchronize pressure treatment delivery with a patient's respiratory cycle. Based on data derived from sensor signals associated with the respiratory treatment, a monitoring device, detector or respiratory treatment apparatus may evaluate flow measures from a flow sensor and distinguish flow attributable to the respiratory treatment apparatus and flow attributable to patient respiratory muscles. The determination may serve as a basis of synchronization criteria that controls pressure levels from a pressure treatment apparatus, such as by evaluating the determined patient generated flow or a relationship between total flow and apparatus flow. In some embodiments, data for the cycling conditions is determined in preliminary treatment cycles during which synchronized pressure changes are controlled according to other cycling criteria. The new cycling conditions are then automatically initiated for control of synchronization in subsequent cycles. | 06-20-2013 |
20130174846 | SYSTEM AND METHOD FOR DETERMINATION OF TRANSPULMONARY PRESSURE IN A PATIENT CONNECTED TO A BREATHING APPARATUS - A breathing apparatus ( | 07-11-2013 |
20130174847 | DISTINGUISHING BETWEEN CLOSED AND OPEN AIRWAY APNEAS AND TREATING PATIENTS ACCORDINGLY - A method of controlling treatment of respiratory conditions of a patient includes determining a signal representative of patient respiratory flow. The signal is analysed to determine (i) the presence of an apnea and a hypopnea and (ii) if present, a type of the apnea or hypopnea. A motor driven blower is controlled to increase a treatment pressure of an airflow delivered toward the airway of the patient upon determination of the presence of an apnea or a hypopnea depending on the type of the apnea or hypopnea, and otherwise to decrease the treatment pressure. | 07-11-2013 |
20130180526 | WEANING FROM VENTILATION USING CAPNOGRAPHY - There is provided herein a method for monitoring weaning of a subject from a respiratory ventilator, the method comprising characterizing distinct patterns in a series of CO2 waveforms obtained from expired breath of a subject undergoing respiratory ventilation weaning, wherein said distinct patterns are indicative to the effectiveness of a weaning process and wherein said distinct patterns are selected from a group consisting of “sigh events”, “spike events” and “pools”; and providing an indication relating to the effectiveness of the weaning process. | 07-18-2013 |
20130186401 | LEAK-COMPENSATED PRESSURE REGULATED VOLUME CONTROL VENTILATION - This disclosure describes systems and methods for compensating for leakage when during delivery of gas to a patient from a medical ventilator in a pressure regulated volume control (PRVC) ventilation mode. The technology described herein includes systems and methods that compensate the delivery of PRVC ventilation for leakage in the patient circuit by using leak-compensated lung flows as well as respiratory mechanics (lung compliance and lung resistance) estimated in a manner that compensates for elastic and inelastic leaks from the ventilation system. | 07-25-2013 |
20130192599 | USING ESTIMATED CARINAL PRESSURE FOR FEEDBACK CONTROL OF CARINAL PRESSURE DURING VENTILATION - This disclosure describes systems and methods for configuring a ventilator to estimate the carinal pressure to minimize the work of breathing due to a breathing tube. A patient's carina is a cartilaginous ridge located at the site of the tracheal bifurcation between the two primary bronchi. According to embodiments, an estimated carinal pressure may be determined and used as feedback control for the carinal pressure. An estimated carinal pressure refers to a pressure estimated to exist at the patient carina. According to embodiments, the estimated carinal pressure may be compared to the carinal pressure command to determine an error. The carinal pressure command may be positive end expiratory pressure (PEEP) or some other suitable target pressure. The error between the estimated carinal pressure and the carinal pressure command may then be used as feedback control to achieve the carinal pressure command and thereby to minimize the work of breathing due to the breathing tube. | 08-01-2013 |
20130192600 | BREATHING SYSTEM WITH FLOW ESTIMATION - A breathing system for ventilating a patient has a gas channel enclosing a gas channel volume (V), and a compliance (C). The system has a flow calculation unit operative to determine a gas flow estimate (Fe) at a flow estimate location in the gas channel. The gas flow estimate (Fe) is based on a relationship between a monitored gas flow (Fm) in the gas channel and a compressible gas flow (Fc) which depends on the compliance (C) in the gas channel. The monitored gas flow (Fm) is a gas flow at a monitoring location in the gas channel and the compressible gas flow (Fc) is a flow of gas in the gas channel between the flow estimate location and the monitoring location, and the flow estimate location is remote from the monitoring location. | 08-01-2013 |
20130199532 | SYSTEM AND METHOD OF DETECTING AND RESPONDING TO SPONTANEOUS RESPIRATION SUBSEQUENT TO A RESIRATORY EVENT - A pressurized flow of breathable gas is delivered to the airway of a subject in accordance with a therapy regime. Responsive to the subject resuming respiration after a respiratory event, delivery of the pressurized flow of breathable gas is resumed at an inhalation in the therapy regime. As such, the therapy regime is effectively re-synchronized with the respiration of the subject subsequent to a respiratory event. | 08-08-2013 |
20130199533 | VENTILATION MANAGEMENT SYSTEM - Ventilator management systems are provided. In one aspect, a ventilator management system includes a memory that includes an initial configuration profile configured to designate operating parameters for a ventilation device, and a processor. The processor is configured to receive ventilator data from the ventilation device, the ventilator data includes at least one of operating parameters of the ventilation device or physiological statistics of a patient associated with the ventilation device, and determine, based on the ventilator data, a modification to the initial configuration profile for the ventilation device. The processor is also configured to generate a modified configuration profile for the ventilation device based on the determined modification. Methods and machine-readable media are also provided. | 08-08-2013 |
20130199534 | VENTILATION SYSTEM - Ventilation systems are provided. In one aspect, a ventilation system includes system includes a ventilation device that is configured to provide breathable air or gas mixture to a patient according to certain operating parameters, a memory that includes instructions, and a processor. The processor is configured to execute the instructions to receive, over a network, at least one of patient data, order data, configuration data, user data, or rules or protocols, and provide a modification of operating parameters of the ventilation device based on the received patient data, order data, configuration data, user data, or rules or protocols. Methods and machine-readable media are also provided. | 08-08-2013 |
20130206143 | FLOW GENERATOR MESSAGE SYSTEM - A flow generator for delivering breathable gas to a patient includes a processor coupled with operation sensors and a user interface. The processor is programmed to generate at least one of time-based or event-based messages relating to at least one of flow generator operation, flow generator service, flow generator use, patient health, peripheral devices and services, patient treatment, and reminders. Time-based messages are generated at predetermined time intervals based on either time of use or elapsed time. The event-based messages are generated based on signals from the operation sensors. The user interface is configured to deliver the messages to at least one of a display, a flow generator service provider, the patient and a physician. By this system, operation of the flow generator is facilitated and enhanced. | 08-15-2013 |
20130206144 | PRESSURE LINE PURGING SYSTEM FOR A MECHANICAL VENTILATOR - A secondary line purging system ( | 08-15-2013 |
20130213399 | RESPIRATION SYSTEM - A respiration system for noninvasive respiration includes a respiration drive, which is controlled by a control device, and includes a patient module ( | 08-22-2013 |
20130220323 | METHOD, ARRANGEMENT AND COMPUTER PROGRAM PRODUCT FOR RESPIRATORY GAS MONITORING OF VENTILATED PATIENTS - A method, device, and computer program product for improving accuracy of a respiratory gas measurement from a subject ventilated at a predetermined respiration rate through a ventilator. A respiratory gas measurement value is acquired within a first expiration period of the subject, thereby to obtain a first measurement value. The ventilator is paused for a pause period within a second expiration period of the subject and a respiratory gas measurement is performed within the pause period, thereby to obtain a second measurement value. A correction factor is then determined based on the first measurement value and the second measurement value and the correction factor is employed to correct subsequent respiratory gas measurement values obtained from the subject at the predetermined respiration rate, thereby to improve the accuracy of the measurement. | 08-29-2013 |
20130220324 | SYSTEMS AND METHODS FOR PROVIDING OSCILLATORY PRESSURE CONTROL VENTILATION - A method for ventilating a patient with a ventilator includes receiving a target pressure input for a breathing phase, receiving at least one oscillation parameter, imposing an oscillatory waveform on the target pressure, the oscillatory waveform having characteristics defined by the at least one oscillation parameter and configured to oscillate substantially about the target pressure for at least a portion of the breathing phase, and delivering an amount of flow sufficient to achieve an oscillatory target pressure based on the imposed oscillatory waveform. | 08-29-2013 |
20130220325 | TREATMENT DEVICE AND METHOD OF USE - This invention relates to a treatment device ( | 08-29-2013 |
20130228180 | DUAL PRESSURE SENSOR CONTINUOUS POSITIVE AIRWAY PRESSURE (CPAP) THERAPY - A continuous positive airway pressure (CPAP) apparatus for respiratory assistance of a pattern is disclosed. There is a blower having an output connectible to a ventilation mask wearable by the patient. A first pressure sensor measures blower pressure at the output of the blower, and a second pressure sensor that is connectible to the ventilation mask measures mask pressure therein. A pressure controller is connected to the first pressure sensor and the second pressure sensor, and a patient inspiratory phase and a patient expiratory phase is be detectable by the pressure controller to regulate therapeutic pressure at the patient mask, based upon pressure differentials between the mask pressure and the blower pressure. | 09-05-2013 |
20130228181 | Continuous Positive Airway Pressure (CPAP) Therapy Using Measurements of Speed and Pressure - A respiratory assistance device is disclosed. There is a variable speed blower with an output, and a patient ventilation interface configured for fitment on a patient respiratory passageway. A gas passage conduit couples the output of the blower to the patient ventilation interface. A pilot line from the gas passage conduit is coupled to a piloted exhalation valve of the patient ventilation interface. A pressure sensor measures a mask pressure in the patient ventilation interface, and a blower speed sensor measures a speed of the blower. A pressure controller in communication with the pressure sensor and the blower speed sensor detects a patient inspiratory phase and a patient expiratory phase from at least one of the measured speed of the blower and a set speed of the blower. The pressure controller adjusts an operating speed of the blower and actuates the piloted exhalation valve based upon the measured mask pressure. | 09-05-2013 |
20130228182 | METHODS AND APPARATUS FOR VARYING THE BACK-UP RATE FOR A VENTILATOR - A ventilator device delivers ventilatory support to a patient in a back up timed mode when patient respiration is not detected or a spontaneous mode when patient respiration is detected. The timing threshold governing the back-up mode is chosen to deviate from normal expected respiration time for the patient to promote patient initiated ventilation in the spontaneous mode but permit back-up ventilation in the event of apnea. Automated adjustments to the timing threshold during the timed mode are made from the less vigilant timing threshold to a more vigilant threshold at or near a timing of normal expected breathing of the patient. Such adjustments may be made from a minimum to a maximum vigilance timing settings or incrementally there between as a function of time in the timed mode which is preferably the number of delivered machine breaths. | 09-05-2013 |
20130233314 | LEAK-COMPENSATED PROPORTIONAL ASSIST VENTILATION - This disclosure describes systems and methods for compensating for leakage when during delivery of gas from a medical ventilator in a proportional assist mode to a patient. The technology described herein includes systems and methods to compensate the delivery of PA ventilation for leakage in the patient circuit by using leak-compensated lung flows as well as leak-compensated respiratory mechanics parameters (lung compliance and lung resistance) estimated in a manner that compensates for elastic and inelastic leaks from the ventilation system. | 09-12-2013 |
20130239968 | LUNG VENTILATOR AND/OR ANAESTHESIA MACHINE - Lung ventilator ( | 09-19-2013 |
20130239969 | CLOSED LOOP CONTROL SYSTEM FOR A HIGH FREQUENCY OSCILLATION VENTILATOR - A control system for a high frequency oscillating ventilator (HFOV) includes an oscillator controller and a mean airway pressure (MAP) controller. The HFOV includes a reciprocating piston which is adapted to generate positive and negative pressure waves for delivery to a patient airway. The oscillator controller comprises a pair of closed loop control circuits including an oscillator pressure loop and a centering loop which are collectively adapted to regulate frequency and amplitude of piston reciprocations and centering of the piston. The MAP controller comprises a closed loop control circuit that is adapted for regulating MAP at the patient utilizing feedback in the form of patient circuit pressure. Likewise, the oscillator controller utilizes patient circuit pressure as well as piston displacement feedback in order to regulate movement of the piston. | 09-19-2013 |
20130247914 | OBESITY HYPVENTILATION SYNDROME TREATMENT SYSTEM AND METHOD - A pressurized flow of breathable gas is delivered to the airway of a subject in accordance with a therapy regimen. The therapy regimen calls for maintenance of an average tidal volume. The therapy ensures that the subject breaths at a therapeutic breath rate. The breath rate may be determined dynamically based on breathing of the subject early on in a therapy session and/or based on a detected wakefulness of the subject. Inspiration for spontaneous and non-spontaneous breaths may be supported at different levels. The therapy regimen further maintains a beneficial positive end expiratory pressure, to reduce respiratory obstructions and/or for other purposes. | 09-26-2013 |
20130255683 | Methods, Systems and Devices for Non-Invasive Open Ventilation For Providing Ventilation Support - A system for providing ventilation support to a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle at the distal end of the gas delivery circuit; and at least one spontaneous respiration sensor for detecting respiration in communication with the control unit. The system may be open to ambient. The control unit may receive signals from the at least one spontaneous respiration sensor and determine gas delivery requirements. The ventilator may deliver gas at a velocity to entrain ambient air and increase lung volume or lung pressure above spontaneously breathing levels to assist in work of breathing, and deliver ventilation gas in a cyclical delivery pattern synchronized with a spontaneous breathing pattern. | 10-03-2013 |
20130255684 | Ventilation Mask with Integrated Piloted Exhalation Valve And Method of Ventilating a Patient Using the Same - In accordance with the present invention, there is provided a mask for achieving positive pressure mechanical ventilation (inclusive of CPAP, ventilator support, critical care ventilation, emergency applications), and a method for a operating a ventilation system including such mask. The mask of the present invention includes a piloted exhalation valve that is used to achieve the target pressures/flows to the patient. The pilot for the valve may be pneumatic and driven from the gas supply tubing from the ventilator. The pilot may also be a preset pressure derived in the mask, a separate pneumatic line from the ventilator, or an electro-mechanical control. Additionally, the valve can be implemented with a diaphragm or with a flapper. | 10-03-2013 |
20130255685 | METHODS AND SYSTEMS FOR TRIGGERING WITH UNKNOWN BASE FLOW - This disclosure describes systems and methods for providing novel back-up ventilation that allows the patient to trigger or initiate the delivery of breath. Further, this disclosure describes systems and methods for triggering ventilation when base flow is unknown or undeterminable by the ventilator. | 10-03-2013 |
20130255686 | VENTILATOR OPERABLE IN A BIOELECTRIC SIGNAL-DEPENDENT MODE, WITH AUTOMATIC SWITCHING TO ANOTHER MODE UPON DROPOUT OF THE BIOELECTRIC SIGNAL - A ventilator intended to be connected to a patient for breathing therapy has a control unit having an input for receiving EMG signals from an EMG detector and an output for an EMG based control signal and a pneumatic unit for generating breathing gas flows dependent on the EMG based control signal is described. The ventilator has a detector for determining a parameter related to breathing dynamics for the patient, this detector being connected to the control unit and control unit controlling the pneumatic unit dependent on the parameter related to breathing dynamics in the case of loss of EMG signals at the input. | 10-03-2013 |
20130263853 | SPLIT-TYPE CONTROLLING DEVICE FOR PRODUCING OXYGEN AND DELIVERING AIR - The present invention relates to a split-type controlling device for producing oxygen and delivering air and includes an outdoor unit, a plurality of indoor units, and a control panel. The control panel includes a controlling unit, which is utilized to control the outdoor unit and the indoor units. Carrying oxygen produced by the outdoor unit to an indoor space through an oxygen outlet preferably enhances air quality indoors. | 10-10-2013 |
20130263854 | VENTILATOR APPARATUS AND METHOD - A respiratory treatment apparatus configured to provide a flow of breathable gas to a patient, including a breathable air outlet, an outside air inlet, and an pneumatic block module, wherein the pneumatic block module includes: a volute assembly including an inlet air passage, a mount for a blower and an outlet air passage; the blower being mounted in the mount such that an impeller of the blower is in a flow passage connecting the inlet air passage and the outlet air passage; a casing enclosing the volute assembly, wherein air passages within the casing connect air ports on the volute assembly, wherein the inlet air passage of the volute assembly is in fluid communication with the outside air inlet and the outlet air passage of the volute assembly is in fluid communication with the air outlet. | 10-10-2013 |
20130263855 | DEVICE FOR CONTROLLING THE ALARM LIMIT OF AN ALARM DEVICE - A controlling device ( | 10-10-2013 |
20130269697 | SYSTEM AND METHOD FOR IDENTIFYING BREATHING TRANSITIONS - A pressurized flow of breathable gas is delivered to the airway of a subject in accordance with a therapy regimen. One or more fluid parameters of the pressurized flow of breathable gas are adjusted based on the therapy regimen. The therapy regimen dictates that such adjustments be made based on the respiratory state of the subject. Transitions in respiratory state are identified without relying on measurement or estimation of flow at or near the airway of subject. Transitions in respiratory state are identified based on changes in the first time derivative of flow at or near the airway of the subject. In one embodiment, an effort parameter is determined that approximates the second time derivative of flow. Based on comparisons of the effort parameter to a dynamic threshold, transitions in respiratory state are identified. | 10-17-2013 |
20130269698 | SYTEM AND METHOD FOR INEXSUFFLATING A SUBJECT - A system for controlling machine-induced expiratory airflow of a subject, the subject having an airway, the system comprising: a pressure generator ( | 10-17-2013 |
20130276785 | Central Site Photoplethysmography, Medication Administration, And Safety - A monitoring and control system, apparatus and method for safe administration, reduction or cessation of administration of at least on medication, fluid or both, which includes at least one Central Source Site (CSS) Photoplethysmography (PPG) sensor coupled to means for control of delivery of the at least one medication, fluid or both. | 10-24-2013 |
20130276786 | DETERMINATION OF LEAK DURING CPAP TREATMENT - A respiratory treatment apparatus and method in which a leak is determined by using an averaging window. The window starts at the present time and extends back in time to a point determined according to a current one of progressively detected phase measures of a first respiratory cycle and a corresponding phase measure attributable to a preceding second respiratory cycle. In another aspect, a jamming index indicates whether the leak is rapidly changing. To the extent that jamming is high, the leak estimate used progressively changes from that using sliding breath-window averaging to a more robust and faster responding low-pass filter method, and adjustment of ventilatory support based on measures employing estimated respiratory flow is slowed down or stopped. | 10-24-2013 |
20130276787 | AUTOMATED INSPIRATORY MUSCLE TRAINING FOR PATIENTS RECEIVING MECHANICAL VENTILATION - A system and method for automated inspiratory muscle strength exercise includes software for setting a mechanical ventilator for a pressure regulated breath with an initial pressure target that is at the highest pressure setting a patient can tolerate and increasing the pressure target as tolerated. | 10-24-2013 |
20130276788 | SYSTEMS AND METHODS FOR TRIGGERING AND CYCLING A VENTILATOR BASED ON RECONSTRUCTED PATIENT EFFORT SIGNAL - Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a method for respiratory support is described that includes providing a measured pressure, and calculating a net flow based on at least one measured inlet flow and measured outlet flow. A relationship between a first value related to the measured pressure, a second value related to the measured net flow and a third value related to patient effort is used to provide a prediction of patient effort. An interim value is updated based at least in part on the prediction of the patient effort, and used to help compute a patient effort. A ventilation cycle is initiated using the computed patient effort. | 10-24-2013 |
20130276789 | VENTILATOR WITH INTEGRATED BLOWER TO PROVIDE NEGATIVE OR POSITIVE PRESSURE IN A VENTILATOR SYSTEM - A ventilator system ( | 10-24-2013 |
20130284172 | METHODS AND SYSTEMS FOR AN OPTIMIZED PROPORTIONAL ASSIST VENTILATION - This disclosure describes systems and methods for providing an optimized proportional assist breath type during ventilation of a patient. The disclosure describes a novel breath type that delivers a target airway pressure calculated based on a desired patient effort range to a triggering patient. | 10-31-2013 |
20130284173 | SYSTEMS AND METHODS FOR VENTILATION IN PROPORTION TO PATIENT EFFORT - Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a ventilation system is disclosed that includes a computer readable medium including instructions executable by a processor to receive a measured pressure value and a net flow value. A patient effort value is calculated based on a relationship between patient effort, the measured pressure value and the net flow value. The instructions are further executable to calculate a gas delivery metric that varies as a function of the patient effort value. Gas is then caused to be delivered consistent with the gas delivery metric. | 10-31-2013 |
20130284174 | RESPIRATION-RATE DEPENDENT RESPIRATORY ASSISTANCE - Respiratory assistance is provided to a subject in the form of a pressurized flow of breathable gas. The pressure of the gas is eased during expiration and increased during inspiration. Changes in pressure are triggered and/or cycled based on the monitoring of tidal volume. Volume thresholds that cause triggering and/or cycling are adjusted based on an observed or measured breath rate. | 10-31-2013 |
20130291869 | METHOD AND SYSTEM FOR CONTROLLING BREATHING - The present invention relates to a method and a system for controlling breathing of a patient. A system for controlling breathing of a patient includes a respiratory conduit. The respiratory conduit is configured to be coupled to a patient interface device and is further configured to be coupled to a pressurized air generating device. The respiratory conduit includes at least two air flow control devices, positioned between the patient interface device and the pressurized air generating device that cooperate to closely control the CO | 11-07-2013 |
20130306074 | SELF-CONTAINED, INTERMITTENT POSITIVE AIRWAY PRESSURE SYSTEMS AND METHODS FOR TREATING SLEEP APNEA, SNORING, AND OTHER RESPIRATORY DISORDERS - Systems and methods provide a self-contained, intermittent positive airway pressure system for treating sleep apnea, snoring, and other respiratory disorders. The systems and methods provide an air flow director that can be worn in or over the nose of the individual in communication with an upper airway. The systems and methods provide an airflow regulation assembly that can also be worn in its entirety by the individual in communication with the air flow director. The airflow regulation assembly includes a source of positive pressure. The airflow regulation assembly intermittently operates the source of positive pressure to increase positive air pressure in the air flow director sufficient to resist tissue collapse in the upper airway during only a portion of the respiratory cycle less than the entire respiratory cycle. | 11-21-2013 |
20130312752 | Methods, Systems and Devices for Non-Invasive Open Ventilation For Treating Airway Obstructions - A system for reducing airway obstructions of a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle, and at least one spontaneous respiration sensor in communication with the control unit for detecting a respiration effort pattern and a need for supporting airway patency. The system may be open to ambient. The control unit may determine more than one gas output velocities. The more than one gas output velocities may be synchronized with different parts of a spontaneous breath effort cycle, and a gas output velocity may be determined by a need for supporting airway patency. | 11-28-2013 |
20130312753 | METHOD AND APPARATUS FOR RESOLVING UPPER AIRWAY OBSTRUCTION, RESISTANCE OR INSTABILITY - A CPAP apparatus has a variable rise time (iii) from a base level of positive air pressure during expiration (EPAP) to a higher level during inspiration (IPAP). The rise time is adjusted in order to reduce obstruction, resistance or instability in the upper airway. | 11-28-2013 |
20130312754 | SYSTEM AND METHOD FOR CUSTOMIZABLE AUTOMATED CONTROL OF FRACTION OF INSPIRED OXYGEN AND/OR POSITIVE END EXPIRATORY PRESSURE TO MAINTAIN OXYGENATION - A pressurized flow of breathable gas is delivered to the airway of a subject in accordance with a therapy regimen. The therapy regimen may be designed to maintain oxygenation of the subject. The therapy regimen dictates levels of fraction of inspired oxygen and/or positive end expiratory pressure to maintain a therapeutically beneficial level of oxygenation in a feedback manner. Within the therapy regimen, changes made to fraction of inspired oxygen and/or positive end expiratory pressure automatically and dynamically are constrained by user configured constraints such as the maximum incremental change, amount of time between adjustments, or the maximum rate of change This may provide a level of customization of the automated control of the therapy regime for individual subjects. | 11-28-2013 |
20130319415 | ACCLIMATIZATION THERAPY FOR FIRST TIME USERS - Systems, methods, and/or apparatuses for acclimatizing a user to positive airway pressure (PAP) therapy are provided. Generally, a sub-therapeutic treatment pressure is provided initially. It may be ramped up to a full treatment pressure over the course of one or more therapy sessions. The pressure level may be ramped up based on, for example, sleep state, sleep phase, patient compliance with types of treatment (e.g. bilevel vs. CPAP, etc.), clinician input (either at the site, remotely, via pre-programmed smartcards, etc.), etc. Such techniques may be used alone or in combination. | 12-05-2013 |
20130327331 | PRESSURE CONTROLLED BREATHING AID - The ventilation module ( | 12-12-2013 |
20130333703 | VENTILATOR BREATH DISPLAY AND GRAPHIC USER INTERFACE - The invention is directed to a ventilation control system for controlling the ventilation of a patient. The ventilation control system utilizes a user-friendly user interface for the display of patient data and ventilator status. The user interface includes a graphic representation of a breath cycle that displays the breath cycle currently being ventilated, and is also responsive to changes in ventilation settings to assist the user in evaluation the effect of those changes on the ventilator strategy before the changes are implemented. | 12-19-2013 |
20130340758 | METHODS AND APPARATUS FOR MONITORING AND TREATING RESPIRATORY INSUFFICIENCY - An apparatus, such as a pressure support ventilator or respiratory monitor, provides operations for a patient, such a patient with heart failure, Chronic Obstructive Pulmonary Disease or other respiratory insufficiency. In some embodiments, the apparatus may detect a respiratory condition, such as a decompensation event and/or exacerbation event, from respiratory parameters. A clinical alert message may be transmitted or displayed for a physician based on the results of query presented to the patient in response to an analysis of the one or more respiratory parameters. In some embodiments, the apparatus generates a potential relapse indicator that may provide a prediction of a risk of an oncoming clinical event such as for evaluating whether to release the patient from a hospital. | 12-26-2013 |
20130340759 | DETERMINING SUITABLE VENTILATOR SETTINGS FOR PATIENTS WITH ALVEOLAR HYPOVENTILATION DURING SLEEP - A method and apparatus for determining suitable settings for a servo-ventilator to be used during a treatment period. Respiratory characteristics of a patient are measured during a learning period preceding the treatment period. With these measured characteristics, a target ventilation setting may be calculated by alternative methods. The calculated setting may then be used for enforcing a minimum ventilation during the treatment period where ventilatory support is provided with a servo-controlled ventilator. | 12-26-2013 |
20140000607 | VENTILATOR SUCTION MANAGEMENT | 01-02-2014 |
20140000608 | MODIFYING VENTILATOR OPERATION BASED ON PATIENT ORIENTATION | 01-02-2014 |
20140000609 | RESPIRATORY KNOWLEDGE PORTAL | 01-02-2014 |
20140000610 | SYSTEM, APPARATUS AND METHOD FOR SUPPLYING GASES | 01-02-2014 |
20140000611 | SYSTEMS AND METHODS FOR TREATING SLEEP APNEA | 01-02-2014 |
20140000612 | APPARATUS AND METHOD FOR SUPPLYING A RESPIRATORY GAS | 01-02-2014 |
20140007877 | CHILDBIRTH LABOR COACH WITH PACED BREATHING | 01-09-2014 |
20140014111 | METHODS AND SYSTEMS TO MANAGE CENTRAL SLEEP APNEA BY CONTROLLING ACCUMULATED RETROGRADE VOLUME - Methods and systems to treat Cheyne-Stokes respiration (CSR) and/or central sleep apnea (CSA) include monitoring retrograde breathing and detecting respiratory events. Based on the occurrences of certain respiratory events, a target volume of rebreathing is adjusted to reduce arousals as well as CSR/CSA. | 01-16-2014 |
20140020687 | DISCREET RESPIRATORY THERAPY SYSTEM - A device provides respiratory treatment such as for sleep disordered breathing and other respiratory conditions in a discreet configuration to provide a minimally invasive system. The system may include a flow pressurizer apparatus configured to generate a pressurized flow of air through a fine bore delivery conduit toward a patient interface. The system may further include a treatment compensator coupled with the fine bore delivery conduit. The treatment compensator may be configured at the patient interface to reduce pressure for patient inspiration. A processor may control adjustments to the pressure generated by the flow pressurizer apparatus. | 01-23-2014 |
20140020688 | METHODS TO TRANSITION ADJACENT TO OR IN CONJUNCTION WITH A SECONDARY AIRWAY PERSSURE THERAPY - A pressure support system ( | 01-23-2014 |
20140034054 | VENTILATOR-INITIATED PROMPT OR SETTING REGARDING DETECTION OF ASYNCHRONY DURING VENTILATION - This disclosure describes systems and methods for monitoring and evaluating ventilatory parameters, analyzing those parameters and providing useful notifications and recommendations to clinicians. That is, modern ventilators monitor, evaluate, and graphically represent multiple ventilatory parameters. However, many clinicians may not easily recognize data patterns and correlations indicative of certain patient conditions, changes in patient condition, and/or effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate ventilatory adjustments that may address certain patient conditions and/or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the presence of asynchrony during ventilation. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect asynchrony and may issue notifications and recommendations suitable for a patient to the clinician when asynchrony is implicated. The suitable notifications and recommendations may further be provided in a hierarchical format. | 02-06-2014 |
20140034055 | SELECTIVE RAMPING OF THERAPEUTIC PRESSURE IN A PATIENT BREATHING APPARATUS - A respiratory assistance device is disclosed. There is a patient interface for coupling to a patient respiratory passageway, and a selectively regulated therapeutic gas flow source in pneumatic communication with the patient over the patient interface. A ramping controller is connected to the therapeutic gas flow source and is receptive to inputs of a prescription pressure level, an initial pressure level, a total ramp duration, and a numeric value corresponding to a ramping duration. Therapeutic gas flow at an initial pressure level is regulated for a ramp delay duration reciprocal to the ramping duration relative to the total ramp duration. The ramping controller incrementally increases therapeutic gas flow to the prescription pressure level from a ramp start time to a ramp end time at a delivery pressure increase rate derived from the numeric value of the ramping duration and the total ramp duration. | 02-06-2014 |
20140034056 | VENTILATION SYSTEM WITH A TWO-POINT PERSPECTIVE VIEW - The disclosure describes a novel approach for displaying information on a ventilator system. The disclosure describes a novel respiratory system including a primary display and system status display. Further, the disclosure describes a novel method for displaying ventilator information. | 02-06-2014 |
20140041662 | SELF-CONTAINED BREATHING APPARATUS - Apparatuses and methods are disclosed for improving the Weight/Duration ratio of Self Contained Breathing Apparatuses (SCBAs) by decreasing the amount of fresh breathing gas required from the system by saving exhaled air that is low in carbon dioxide in a reservoir and reusing it at the subsequent inhalation. Electronic control units (“ECUs”) including conventional oxygen sensors and special types of carbon dioxide sensors are used to monitor and predictably regulate the consumption of breathing gas, further contributing to a significantly lower overall system weight for any given duration of the SCBA. | 02-13-2014 |
20140048070 | RESPIRATORY DEVICE AND METHOD FOR CONTROLLING A RESPIRATORY DEVICE - A respiratory device having a respiratory gas source, a control unit and a connecting device for connecting to a respiratory mask. The control unit is connected to a sensor for detecting a measurement parameter. The control unit has a step generator for specifying a stepped modification of the pressure that is generated by the respiratory gas source. The sensor measures a signal that corresponds to the pressure distribution and is coupled to an analyzer that evaluates the temporal distribution of an analysis signal that is dependent on the measuring signal. The step generator increases the pressure by a pressure step in a respiratory cycle that follows the measuring evaluation, if the analyzer determines a deviation of the analysis signal from a limit value after a predeterminable time limit has elapsed following the pressure increase. The deviation must exceed a predeterminable minimum differential in order to trigger a pressure increase. | 02-20-2014 |
20140048071 | VENTILATOR-INITIATED PROMPT REGARDING DETECTION OF FLUCTUATIONS IN RESISTANCE - This disclosure describes systems and methods for monitoring ventilatory parameters, analyzing ventilatory data associated with those parameters, and providing useful notifications and/or recommendations to clinicians. For example, many clinicians may not easily identify or recognize data patterns and correlations indicative of a fluctuation in resistance during mechanical ventilation of a patient. Furthermore, clinicians may not easily determine potential causes for the fluctuation in resistance and/or steps for mitigating the fluctuation in resistance. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect fluctuations in resistance and may issue suitable notifications and recommendations to the clinician based on potential causes of the fluctuation, ventilatory and/or patient data, etc. The suitable notifications and recommendations may further be provided in a hierarchical format such that the clinician may selectively access information regarding the fluctuation in resistance. | 02-20-2014 |
20140048072 | VENTILATOR-INITIATED PROMPT REGARDING DETECTION OF FLUCTUATIONS IN COMPLIANCE - This disclosure describes systems and methods for monitoring and evaluating ventilatory data to provide useful notifications and/or recommendations. Indeed, many clinicians may not easily identify or recognize data patterns and correlations indicative of certain patient conditions or the effectiveness of ventilatory treatment. Further, clinicians may not readily determine appropriate adjustments that may address certain patient conditions or the effectiveness of ventilatory treatment. Specifically, clinicians may not readily detect or recognize the occurrence of fluctuations in compliance during various types of ventilation. According to embodiments, a ventilator may be configured to monitor and evaluate diverse ventilatory parameters to detect an occurrence of and potential causes for fluctuations in compliance and may subsequently issue suitable notifications and/or recommendations. The suitable notifications and/or recommendations may further be provided in a hierarchical format such that the clinician may selectively access information regarding the fluctuation in compliance and/or potential causes for the fluctuation in compliance. | 02-20-2014 |
20140053840 | Human-Machine Synchronization Method And Device Of Invasive Ventilator Operating In Noninvasive Ventilation Mode - A human-machine synchronization method and device of an invasive ventilator operating in a noninvasive ventilation mode. The method includes steps of: measuring an airway pressure, an inspiratory flow, and an expiratory flow; calculating a gas leakage flow according to a pre-established gas leakage estimation model and by using the airway pressure, the inspiratory flow and the expiratory flow; and compensating a basic flow according to the gas leakage flow. In the above method, the gas leakage flow is estimated by means of the gas leakage estimation model, to compensate the gas leakage, thereby facilitating the noninvasive ventilation of the invasive ventilator and improving the human-machine synchronization. | 02-27-2014 |
20140060539 | VENTILATOR SYCHRONIZATION INDICATOR - A method and apparatus determine a phase angle between a first signal based on ventilator airflow for a breath and a second signal based upon ventilator firing for the breath. Based on the phase angle, an indication of a nature of dis-synchrony of airflow and ventilator firing is provided. | 03-06-2014 |
20140060540 | METHOD AND SYSTEM FOR AUTOMATED SPONTANEOUS BREATHING TRIAL - The disclosure relates generally to a method and a system for acquiring patient parameters of a plurality of patient parameter relationship expressions and performing an automated spontaneous breathing trial. In the event of a successful trial, constructive notice of the success is provided. | 03-06-2014 |
20140060541 | METHOD AND SYSTEM FOR EVALUATION OF PATIENT BREATHING STAGES - The disclosure relates generally to a method and a system for acquiring patient parameters and indicating the status of patient parameter relationship expressions for a selected breathing stage from a plurality of breathing stages. | 03-06-2014 |
20140069430 | VENTILATORY ASSISTANCE FOR TREATMENT OF CARDIAC FAILURE AND CHEYNE-STOKES BREATHING - Method and apparatus for the treatment of cardiac failure, Cheyne Stokes breathing or central sleep apnea are disclosed. A subject is provided with ventilatory support. Respiratory airflow is determined. From the respiratory airflow are derived a measure of instantaneous ventilation and a measure of longterm average ventilation. A target ventilation is taken as 95% of the longterm average ventilation. The instantaneous ventilation is fed as the input signal to a clipped integral controller, with the target ventilation as the reference signal. The output of the controller determines the degree of ventilatory support. A third measure of ventilation, for example instantaneous ventilation low pass filtered with a time constant of 5 seconds, is calculated. Ventilatory support is in phase with the subject's respiratory airflow to the fuzzy extent that this ventilation is above target, and at a preset rate conversely. | 03-13-2014 |
20140076317 | PULSE OXIMETRY IN RESPIRATORY THERAPY PATIENT INTERFACE - Provided are systems and methods for utilizing blood oxygenation information with respiratory therapy. These systems and methods may provide respiratory therapy to a patient ( | 03-20-2014 |
20140076318 | METHOD AND APPARATUS FOR ASSESSING SLEEP QUALITY - Systems and/or methods for assessing the sleep quality of a patient in a sleep session are provided. Data is collected from the patient and/or physician including, for example, sleep session data in the form of one or more physiological parameters of the patient indicative of the patient's sleep quality during the sleep session, a subjective evaluation of sleep quality, etc.; patient profile data; etc. A sleep quality index algorithm, which optionally may be an adaptive algorithm, is applied, taking into account some or all of the collected data. Sleep quality data may be presented to at least the patient, and it may be displayed in any suitable format (e.g., a format useful for the patient to be appraised on the progress of the treatment, a format useful for a sleep clinician to monitor progress and/or assess the effectiveness of differing treatment regimens, etc). | 03-20-2014 |
20140076319 | POSITIVE AIRWAY PRESSURE SYSTEM WITH HEAD POSITION CONTROL - The invention is directed to a positive airway pressure (PAP) system with a head mounted harness assembly with a housing and a head position sensor located within or secured to the housing that detects the position of a patient's head, and communicates this head position information to a controller of the system which may be disposed within the housing having the position sensor or a second housing. The controller varies the output pressure of the pressure source, e.g. a rotary compressor, based, at least in part, on the head position information provided by the head position sensor. In a preferred embodiment, the position sensor is an accelerometer. | 03-20-2014 |
20140083426 | SYSTEMS AND METHODS FOR CONTROLLING A VENTILATOR - A method and system for controlling a ventilator is disclosed. Oxygen saturation values from pulse oximeters may be used to adjust the settings of a ventilator. Multiple sensors and multiple oxygen saturation values in a fault tolerant pulse oximeter configuration may be used to provide a backup value or confidence measure, thereby increasing reliability and patient safety. | 03-27-2014 |
20140090648 | METHOD AND APPARATUS FOR TREATING APNEA/HYPOPNEA - Methods and/or apparatuses for treating sleep-disordered breathing (SDB) are provided. In particular, systems and/or methods are provided which may temporarily boost the pressure of a supply of breathable gas provided by an AutoSet device for the treatment of hypopnea. In certain example embodiments, a supply of breathable is provided to patients to treat apneas and/or hypopneas. The presence and/or absence of apneas and/or hypopneas are detected (e.g. by monitoring the Apnea-Hypopnea Index). When hypopnea events are detected, the pressure of the supply of breathable gas temporarily is increased above the Pcrit and/or CPAP levels, at least during patient inspiration. When the hypopnea events are normalized, the pressure is reduced. In certain example embodiments, the pressure will not be increased when a non-hypopnea event is detected at the same time as a hypopnea event. | 04-03-2014 |
20140102454 | CONFIGURATION OF RESPIRATORY THERAPY MODES - A respiratory therapy device is configured, such that it switches from one therapy mode to another therapy mode. The mode parameters for the latter therapy mode are based on usage information gather during the former therapy mode. | 04-17-2014 |
20140102455 | UNLOCKING A RESPIRATORY THERAPY MODE - A respiratory therapy device is configured, e.g. by a care provider, such that a second therapy mode different from the current therapy mode is unlocked, under predetermined circumstances and a third therapy mode different from the current and the second therapy mode is unlocked, under predetermined circumstances. The user of a given respiratory therapy device may activate the unlocked second or third therapy mode. The second or the third therapy mode may expire after a predetermined amount of usage, and be deactivated. | 04-17-2014 |
20140109909 | PRESSURE ADJUSTMENT IN A RESPIRATORY THERAPY DEVICE - Sleep apnea can be treated with pressure support therapy using a target pressure level. Detected respiratory events during consecutive multi-session testing period are compared to determine statistical metrics covering gradual changes in therapy efficiency. Adjustments to the target pressure level are based on changes in variability, and maybe made in between therapy sessions. | 04-24-2014 |
20140109910 | SYSTEM AND METHOD FOR LIMITED FLOW RESPIRATORY THERAPY - Methods and system of respiratory therapy treat sleep apnea by particular elevated pressure levels during the end of exhalation phases. Inhalation pressure levels may thus be significantly reduced and be, on average, lower than the exhalation pressure levels. | 04-24-2014 |
20140116439 | BREATHING APPARATUS AND METHOD FOR SUPPORT VENTILATION - In a method and breathing apparatus for providing support ventilation to a spontaneously breathing patient a pressure and/or a flow is monitored based on pressure and/or flow measurements, and efforts to inhale or exhale by the patient are detected based on changes in the monitored pressure and/or flow. When a change in the monitored pressure and/or flow indicating an effort to inhale or exhale is detected, the rate of that change is determined and used to calculate a suitable rate of change of pressure applied to the airways of the patient. By changing the applied pressure in accordance with the so determined suitable rate of change, the pressure rise time during inspiration and/or the pressure fall time during expiration can be adjusted to the needs of the patient to ensure efficient and comfortable ventilation. | 05-01-2014 |
20140116440 | ELECTRONIC APPARATUS CONTROL USING A BREATHING ASSISTANCE APPARATUS - A breathing gases supply apparatus | 05-01-2014 |
20140116441 | METHOD AND APPARATUS FOR ASSISTING AIRWAY CLEARANCE - A method of assisting a patient with airway clearance includes providing a positive pressure insufflation gas flow to the patient during an insufflation phase, following completion of the insufflation phase, causing the patient to enter an expiratory hold condition wherein the patient is prevented from exhaling, providing an abdominal thrust to the patient while the patient is in the expiratory hold condition, terminating the expiratory hold condition, and following termination of the expiratory hold condition, providing a negative pressure exsufflation gas flow to the patient during an exsufflation phase. | 05-01-2014 |
20140116442 | SYSTEMS, METHODS, AND/OR APPARATUSES FOR NON-INVASIVE MONITORING OF RESPIRATORY PARAMETERS IN SLEEP DISORDERED BREATHING - In certain example embodiments, an air delivery system includes a controllable flow generator operable to generate a supply of pressurized breathable gas to be provided to a patient for treatment and a pulse oximeter. In certain example embodiments, the pulse oximeter is configured to determine, for example, a measure of patient effort during a treatment period and provide a patient effort signal for input to control operation of the flow generator. Oximeter plethysmogram data may be used, for example, to determine estimated breath phase; sleep structure information; autonomic improvement in response to therapy; information relating to relative breathing effort, breathing frequency, and/or breathing phase; vasoconstrictive response, etc. Such data may be useful in diagnostic systems. | 05-01-2014 |
20140123979 | SYSTEMS AND METHODS FOR MONITORING, MANAGING, AND PREVENTING FATIGUE DURING VENTILATION - This disclosure describes systems and methods for determining patient fatigue during ventilation of a patient. The disclosure describes novel notification and/or management of patient fatigue during ventilation. Further, the disclosure describes system and methods for preventing diaphragm fatigue or weakness. | 05-08-2014 |
20140123980 | Automated Hypoxia Recovery System - Disclosed are methods and systems for detecting and remedying a potential hypoxic state. A wearable hypoxic state detector includes an SpO | 05-08-2014 |
20140137867 | SECRETION CLEARING PATIENT AIRWAY MANAGEMENT SYSTEM - A pulmonary secretion clearing airway structure and related airway management system is disclosed that has a double lumen portion which each lumen of the double lumen portion operably secured to an airway management system so that inspiratory fluid (air/oxygen mixtures, with or without added water vapor) is delivered to the distal end of the ventilation catheter through one of the two lumens and expired inspiratory fluid, pulmonary secretions, and pulmonary fluids are removed from the patient through the other lumen. The expiratory fluid pathway preferably includes a secretion collection system for removing the pulmonary secretions and the like from the pathway, thereby improving operation and safety of the system. The airway structure can be a ventilation catheter or a supraglottic airway system such as laryngeal mask and the like. | 05-22-2014 |
20140137868 | Capacitive Sensor - A capacitive sensor for measuring pressure comprises a fixed charge plate integral to a printed circuit board, a flexible charge plate that is grounded, a conductive donut-shaped adhesive spacer between the charge plates, a lid, a non-conductive donut-shaped adhesive spacer between the second charge plate and the lid, means of providing a pressure, fixed or variable, to both sides of the flexible charge plate, wherein a microcontroller controls a power supply and provides a voltage to the first charge plate wherein the accumulative voltage may be measured as a means of determining differential pressure. | 05-22-2014 |
20140144445 | Substantially Constant Positive Airway Pressure Systems and Methods for Treating Sleep Apnea, Snoring, and Other Respiratory Disorders - Substantially constant positive airway pressure systems and methods mediate the variations in pressures that occur within a conventional CPAP mask during inhalation and exhalation cycles, and thereby reduce discomfort. | 05-29-2014 |
20140144446 | RESPIRATORY THERAPY DEVICE AND FILTRATION UNITS THEREFOR - A respiratory therapy device comprises a pneumatic control unit connectable to a source of medical grade oxygen for supplying oxygen to a first control unit outlet port at a first set of conditions and to a second control unit outlet port at a second set of conditions. First and second transfer conduits are in fluid communication with the first and second outlet ports. Each transfer conduit defines at least part of a flowpath to destination. Each flowpath includes a filter. A related filtration module comprises a filter housing defining two or more filter compartments. The housing has an input side with a gas inlet in fluid communication with each of the filter compartments and a gas outlet in fluid communication with each of the filter compartments. A filter element resides in each of the compartments intermediate the gas inlet to the compartment and the gas outlet from the compartment. | 05-29-2014 |
20140150791 | COMBINATION RESPIRATORY THERAPY DEVICE, SYSTEM, AND METHOD - A combination respiratory therapy management system creates a combined respiratory therapy prescription that can be executed by a combined respiratory therapy device to provide multiple coordinated respiratory therapies to a patient. The system can update the combined respiratory therapy prescription and implement the updates while the combined respiratory therapy device is in use. Some versions of the system provide additional features that allow the combined respiratory therapy prescriptions to be created, accessed, shared with other users, and performed by the combination respiratory therapy device in a customizable user-friendly and non-threatening way. | 06-05-2014 |
20140150792 | SYSTEM FOR PROVIDING FLOW-TARGETED VENTILATION SYNCHRONIZED TO A PATIENT'S BREATHING CYCLE - An open system provides breath-synchronized, flow-targeted ventilation to augment respiration by a self-breathing patient. A sensor detects a physical property of a patient's respiratory cycle. A processor monitors the sensor and controls a gas source to deliver oxygen-containing gas through a tube extending into the patient's airway with the flow rate varying over each respiratory cycle in a predetermined non-constant waveform synchronized with the respiratory cycle to augment the patient's spontaneous respiration. Gas is delivered at a flow rate sufficient to significantly mitigate the airway pressure the patient must generate during spontaneous breathing and thereby reduce the patient's work of breathing. | 06-05-2014 |
20140150793 | MECHANICAL VENTILATION IN THE PRESENCE OF SLEEP DISORDERED BREATHING - A method for controlling operation of a CPAP apparatus. The apparatus has a blower, a patient interface, an air delivery conduit for delivering air from the blower to the patient interface, a sensor for determining the pressure in the patient interface, and a control mechanism that causes air to be delivered at a desired pressure to the patient interface and that detects transitions between inhalation and exhalation of a respiratory cycle of a patient in order to synchronise the blower output with the patient's efforts. In one form the CPAP apparatus provides pressure in accordance with a bi-level waveform with at least one characterising parameter of the waveform being automatically adjusted in accordance with indications of sleep disordered breathing. The indications of sleep disordered breathing can be one or more of snoring, apnea, hypopnea, and flow limitation. | 06-05-2014 |
20140158132 | Methods Of Monitoring Oxygenation By Positive End Expiratory Pressure Using Photoplethysmography - The present invention relates to novel lip/cheek probes for detection of pulse-based differences in light absorbence across the vascularized tissue of a lip or cheek of a patient. These probes are fabricated to provide signals to estimate arterial oxygen saturation, and/or to obtain other photoplethysmographic data. The present invention also relates to a combined probe/cannula. The present invention also relates to other devices that combine a pulse oximeter probe with a device supplying oxygen or other oxygen-containing gas to a person in need thereof, and to sampling means for exhaled carbon dioxide in combination with the novel lip/cheek probes. In certain embodiments, an additional limitation of a control means to adjust the flow rate of such gas is provided, where such control is directed by the blood oxygen saturation data obtained from the pulse oximeter probe. | 06-12-2014 |
20140166014 | ADMINISTRATION OF CPAP TREATMENT PRESSURE IN PRESENCE OF APNEA - CPAP treatment apparatus is disclosed having a controllable flow generator ( | 06-19-2014 |
20140182589 | METHOD AND APPARATUS FOR TREATING CHEYNE-STOKES RESPIRATION - A system and method for delivering a flow of breathing gas to an airway of a patient. The system monitors a characteristic that varies based on variations of the flow of the breathing gas and determines a Target Flow for the gas to be delivered to the patient based on the monitored characteristic. The Target Flow is set to a level sufficient to treat Cheyne-Stokes respiration or a sleep disordered breathing event. The system also alters the Target Flow based on a determination that the patient is experiencing a sleep disordered breathing event. The system further determines a pressure relief component and controls the flow of gas delivered to the patient based on the Target Flow and the pressure relief component. | 07-03-2014 |
20140196719 | OXYGEN CONSERVATION SYSTEM FOR COMMERCIAL AIRCRAFT - An emergency oxygen supply system for use on aircraft in the event of a loss in cabin pressure is configured for delivering allotments of oxygen and timing the delivery such allotments to each passenger so as maximize the efficiency of the transfer of such oxygen into the passenger's bloodstream. The delivery of each allotment is selected so that the entire allotment is available for inhalation into the region of the lung most efficient at oxygen transfer while the volume of the allotment is selected to substantially coincide with the volume of such region of the lung. | 07-17-2014 |
20140209097 | APPARATUS AND METHOD FOR RELIEVING DYSPNOEA - Apparatus for relieving dyspnoea in an ambulatory exercising subject comprises a housing to be worn on the subject, and within which a variable speed air blower motor is located for delivering an air supply to the subject through a mouthpiece at a pressure similar to average intrinsic positive end-expiratory pressure of the subject. A pressure transducer in the mouthpiece monitors the pressure during breathing cycles of the subject, and a control circuit determines the average intrinsic positive end-expiratory pressure of the subject over five breathing cycles. The control circuit operates the air blower motor for delivering the air supply to the subject at a pressure similar to the determined average intrinsic positive end-expiratory pressure. | 07-31-2014 |
20140230818 | METHODS FOR PREDICTION OF VENTILATION TREATMENT INADEQUACY - Ventilatory systems and methods are disclosed including a ventilator and at least one sensor in communication with the ventilator. The sensor is configured to monitor a chest wall movement of a patient during ventilation. The ventilator is configured to provide an alarm to a clinician upon detection by the sensor of a threshold change in the chest wall movement of the patient, for example, a threshold change between the monitored chest wall movement and a previously monitored chest wall movement of the patient. The sensor may be located on an exterior surface of the patient's chest and may be, for example, an accelerometer, an optical imaging system, an audio sensor, an electrical impedance sensor or an ultrasound sensor. | 08-21-2014 |
20140230819 | SYSTEMS AND METHODS FOR MONITORING PATIENTS FOR RISK OF VENTILATOR ASSOCIATED EVENTS - A system for monitoring a patient on ventilation includes a ventilator system configured to provide mechanical ventilation in accordance with a FiO | 08-21-2014 |
20140238399 | METHOD AND SYSTEM FOR CONTROLLING BREATHING - The present invention relates to a method and a system for controlling breathing of a patient. A system for controlling breathing of a patient includes a respiratory conduit. The respiratory conduit is configured to be coupled to a patient interface device and is further configured to be coupled to a pressurized air generating device. The respiratory conduit includes at least two air flow control devices, positioned between the patient interface device and the pressurized air generating device that cooperate to closely control the CO | 08-28-2014 |
20140261424 | METHODS AND SYSTEMS FOR PHASE SHIFTED PRESSURE VENTILATION - This disclosure describes systems and methods for providing pressure ventilation with a shifted pressure profile during ventilation of a patient. The disclosure describes a novel breath type that phase shifts the rise time of the delivered pressure profile to improve patient comfort and patient-ventilator synchrony. | 09-18-2014 |
20140261425 | Wearable Positive Airway Pressure (PAP) with Primary and Bolus Airflow - This invention can be embodied as a wearable self-contained device that provides energy-efficient Positive Airway Pressure (PAP) to treat Obstructive Sleep Apnea (OSA). This device includes a primary airflow member and a bolus airflow member which operate together in a coordinated manner to provide just the right amount of pressure that is needed at any given time in order to keep the person's airway open in the most energy-efficient manner. The bolus airflow member can accumulate energy over multiple respiratory cycles and use this energy to release a bolus of air when needed. Energy efficiency is particularly critical for wearable self-contained Positive Airway Pressure (PAP) systems that a person can wear on their head without a tube connection to a bedside unit or a continuous wire connection to an external power source. | 09-18-2014 |
20140261426 | Dual Pressure Sensor Patient Ventilator - A patient ventilation apparatus is disclosed. The apparatus includes an inlet port connectible to an oxygen source with pressurized oxygen enriched gas. An outlet port is connectible over a gas delivery conduit to a patient interface configured for fitment on a patient respiratory passageway. A valve is in pneumatic communication with the inlet port and with the outlet port. A first pressure sensor measures a patient interface pressure, which is connectible to the first pressure sensor over a pressure sensor line. A second pressure sensor measures a valve output pressure. A controller is in communication with the first pressure sensor, the second pressure sensor, and the flow sensor, to detect a patient inspiratory phase and a patient expiratory phase based upon a combination of measurements of the first pressure sensor and the second pressure sensor and to regulate the valve to selectively deliver pressurized oxygen enriched gas to the patient interface. | 09-18-2014 |
20140261427 | VENT DEVICE FOR USE WITH A RESPIRATORY DEVICE - A vent device for a respiratory device, comprising one or a plurality of vents configured with a variable aperture size for communicating a flow of breathable gas. Said vent device being configured so that the cross section profile exposed to the flow of breathable gas communicating through the vent does not change as the aperture size changes. A vent device may comprise of a plurality of the said vents, wherein the aperture size of each vent may be controlled independently or together, and may be controlled according to one or more input signals from one or more sensors. Examples of suitable input signals include flow, pressure, noise, accelerometer outputs, orientation of a patient or presence of any obstructions. A patient interface or a patient conduit may comprise the vent device, or the vent device may be configured to connect with a patient interface or a patient conduit. | 09-18-2014 |
20140283834 | PORTABLE VENTILATOR SECRETION MANAGEMENT SYSTEM - A patient ventilator secretion management system is disclosed. The system has a valve with an input in pneumatic communication with a therapeutic breathing gas source. The valve has variable positions, each of which corresponds to a specific flow rate of gas being output therefrom. A patient ventilation interface is in pneumatic communication with the valve over a gas delivery circuit. A controller in communication with the valve regulates the position thereof. The controller sequentially switches the valve from one of the variable positions to another to output a first range of fluctuating flow rates of gas for delivery to the patient ventilation interface during at least a selected one of patient expiratory and inspiratory phases. | 09-25-2014 |
20140283835 | METHOD AND APPARATUS FOR PROVIDING VENTILATORY ASSISTANCE - The apparatus provides for the determination of the instantaneous phase in the respiratory cycle, subject's average respiration rate and the provision of ventilatory assistance. A microprocessor ( | 09-25-2014 |
20140283836 | METHODS AND APPARATUS FOR CONTROLLING MASK LEAK IN CPAP TREATMENT - A method of operating a device for treating sleep disordered breathing (SDB), wherein the device provides continuous positive airway pressure during sleep, includes determining whether treatment pressure at the patient interface is below a desired value, in response to the determining, increasing pressure generated by the flow generator, in response to the increasing, making a determination that the increase in flow generator pressure has resulted in less than a desired increase in treatment pressure at the patient interface, and in response to the determination, reducing or inhibiting further increase of the flow generator pressure. | 09-25-2014 |
20140290656 | METHOD AND DEVICE FOR CARRYING OUT A SIGNAL-PROCESSING VIEWING OF A MEASUREMENT SIGNAL THAT IS CORRELATED TO THE RESPIRATORY ACTIVITY OF AN INDIVIDUAL - The invention relates to a method and device for carrying out a signal-processing viewing of a measurement signal that is correlated with the respiratory activity of an individual, for example, of a measurement signal that is correlated with the respiratory gas. The aim of the invention is to provide solutions with which an improved electronic analysis of the signals that are representative with regard to respiratory activity can be achieved. To this end, the invention provides that viewing results are obtained within the scope of a signal-processing viewing of said measurement signal and make a differentiation between obstructive and central respiratory disorders possible. The viewing results are determined, in particular, while taking into account changes of selected breathing characteristics such as, for example, the change in the ratio of inhalation time to exhalation time. | 10-02-2014 |
20140290657 | METHOD FOR VENTILATION - The disclosure describes a method for automatically initiating ventilation, controlling ventilation, transitioning a ventilator to subject controlled ventilation, and weaning a subject from ventilation. The disclosure describes that the method for automatically initiating ventilation includes inputting a physical characteristic of the subject into a ventilator. The physical characteristic may be ideal body weight, height, or age. Based on the inputted physical characteristic, one or more ventilation parameters are calculated. The disclosure describes initiating ventilation based on the calculated parameters. During ventilation at least one physiological parameter of the subject is monitored. At least one ventilation parameter may be adjusted based on the monitoring of the physiological parameters and the inputted physical characteristic. | 10-02-2014 |
20140290658 | METHODS AND APPARATUS FOR PROVIDING VENTILATION TO A PATIENT - The present technology relates to methods and apparatus to provide ventilation to patients. In particular, the present technology relates to changing ventilator parameters to match changing patient metabolic demand. | 10-02-2014 |
20140311492 | ELECTRICALLY STIMULATED MASK AND/OR ASSOCIATED COMPONENTS - A respiratory assistance component is disclosed that changes shape when an electrical charge is provided. The amount of electrical charge that is applied may be based on values, characteristics, or user controlled parameters of the respiratory assistance system. The component may be all or part of a patient interface, a tube, a flow generator, and/or a sleep mat. | 10-23-2014 |
20140318541 | AUTOMATIC CONTROL SYSTEM FOR MECHANICAL VENTILATION FOR ACTIVE OR PASSIVE SUBJECTS - A method and an apparatus for controlling a ventilator to automatically adjust ventilation assistance to an active or passive subject. The method includes determining volume and flow rate of gas to the patient during inspiration on an ongoing basis, and generating control signals in proportion to the volume and flow rate of gas to the patient wherein proportionality factors, and support levels for the elastic and resistive components of pressure are automatically adjusted by the ventilator. The ongoing pressure applied by the ventilator is a sum of elastic and resistive pressures that are automatically controlled by the system. When the patient breathes spontaneously, the support levels are automatically adjusted based on the patient's requirements. If the patient does not breathe spontaneously, the ventilator provides ventilation at an optimal level and rate. The method may be used in weaning or in a management phase of ventilation. | 10-30-2014 |
20140318542 | PATIENT MONITORING AND DRUG DELIVERY SYSTEM AND METHOD OF USE - Disclosed is a patient monitoring and drug delivery system and associated methods for use during diagnostic, surgical or other medical procedures. The functionality of the invention enables many time consuming and laborious activities to be minimized or moved to a part in the procedure where time is not as critical. The invention is capable of increasing practice efficiency in patient care facilities through system architecture and design into two separate units. A patient unit receives input signals from patient monitoring connections and outputs the signals to a procedure unit. The procedure unit is operational during the medical procedure and controls the delivery of drugs to the patient. | 10-30-2014 |
20140318543 | SESSION-BY-SESSION ADJUSTMENT OF A DEVICE FOR TREATING SLEEP DISORDERED BREATHING - A method is disclosed for operating a device that treats sleep disordered breathing (SOB) during successive treatment sessions, where the device provides continuous positive airway pressure during sleep. The method comprises the steps of applying a constant treatment pressure during a first session and deriving a sleep disorder index (SOl) representative of the number of SOB episodes that occurred during the first session. If the treatment pressure should be increased based upon the derived SOl, it is increased during a second, subsequent session. | 10-30-2014 |
20140326241 | METHODS, SYSTEMS AND APPARATUS FOR PACED BREATHING - Methods, systems and/or apparatus for slowing a patient's breathing by using positive pressure therapy. In certain embodiments, a current interim breathing rate target is set, and periodically the magnitude of a variable pressure waveform that is scaled to the current interim breathing rate target is increased if the patient's breathing rate is greater than the interim breathing rate target in order to lengthen the patient's breath duration. The magnitude of the pressure increase may be a function of the difference between the interim breathing rate target and the patient's breathing rate. The interim breathing rate target may be periodically reduced in response to the patient's breathing rate slowing down toward the current interim breathing rate target. The variable pressure waveform cycles from an inhalation phase to an exhalation phase when the patient airflow decreases to a cycle threshold, the cycle threshold being a function of flow versus time within a breath and generally increasing with time. Different interim breathing rate targets have different cycle threshold functions, and the cycle threshold functions allow easier cycling as the interim breathing rate targets decrease. Similarly, the variable pressure waveform triggers from an exhalation phase to an inhalation phase when the patient airflow increases to a trigger threshold, the trigger threshold being a function of flow versus time within a breath and generally decreasing with time. Different interim breathing rate targets have different trigger threshold functions, and the trigger threshold functions allow easier triggering as the interim breathing rate targets decrease. | 11-06-2014 |
20140326242 | SYSEMS AND METHODS FOR USING PARTIAL CO2 REBREATHING INTEGRATED IN A VENTILATOR AND MEASUREMENTS THEREOF TO DETERMINE NONINVASIVE CARDIAC OUTPUT - Systems and methods for providing a ventilator for partial CO | 11-06-2014 |
20140345616 | SYSTEMS AND METHODS FOR DETERMINING PATIENT EFFORT AND/OR RESPIRATORY PARAMETERS IN A VENTILATION SYSTEM - Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a method for respiratory support is described that includes measuring a pressure, providing a measured pressure, measuring an inlet flow and an outlet flow, and providing a measured net flow. A relationship between a first value related to the measured pressure, a second value related to the measured net flow and a third value related to patient effort is used to provide a prediction of patient effort. An interim value is updated based at least in part on the prediction of the patient effort. | 11-27-2014 |
20140345617 | PASSIVE GAS REGULATING VALVE FOR A RESPIRATORY SYSTEM - The invention relates to a gas regulating valve ( | 11-27-2014 |
20140352697 | APPARATUS AND METHOD FOR OXYGEN DELIVERY - The oxygen delivery apparatus comprises: an oxygen tank; an outlet valve unit configured to include a variable flow valve capable of variably controlling the amount of oxygen, a pressure sensor, and a control unit controlling the operation of the outlet valve unit on the basis of a signal from the pressure sensor in order to control the amount of oxygen delivered to a recipient. The control unit controls the outlet valve unit on the basis of the pressure signal and an oxygen delivery mode selected from among a plurality of preset oxygen delivery modes, receives a prescribed flow (that is a prescribed oxygen delivery flow) and a target average consumed flow, selects one of the plurality of oxygen delivery modes according to the size of a obtained saving ratio obtained as ratio of the input prescribed flow and the target average consumed flow, and controls the delivery of oxygen on the basis of the selected mode. | 12-04-2014 |
20140366878 | MEDICAL CONSOLE - A personal medical console is connectable to a plurality of different sensor devices and different effector devices and configured to monitor operation of one or more sensor devices and control operation of one or more effector devices. The sensor devices sense physiological characteristics. The medical console is configured to receive sensor data from sensor devices and output control data defining one or more actions for controlling the one or more of the effector devices. An analysis engine in the medical console is configured to process the sensor data received from the one or more sensor devices and output control data in response to the sensor data by determining a divergence of the sensor data to a target health state, and generating the control data for the one or more effector devices responsive to the divergence. | 12-18-2014 |
20140366879 | USE OF MULTIPLE SPONTANEOUS BREATH TYPES TO PROMOTE PATIENT VENTILATOR SYNCHRONY - The present disclosure combines the advantages of a hybrid mode of ventilation with an automatic determination of an appropriate spontaneous breath type in response to one or more patient based criteria. Specifically, when the ventilator is delivering a spontaneous breath type, a determination may be made as to whether predetermined ventilatory criteria have been met. Based on the determination the ventilator may deliver one of any number of spontaneous breath types. | 12-18-2014 |
20140373845 | METHODS AND SYSTEMS FOR ADAPTIVE ADJUSTMENT OF VENTILATOR SETTINGS - This disclosure describes systems and methods for providing optimized adjustment of a ventilator based on an estimated net value of patient effort. The disclosure describes a novel breath type that delivers a target airway pressure calculated based on an estimated patient muscle effort. A net value of patient muscle effort is estimated using a parameter estimate vector update equation to solve for a recursive least squares gain value representing the estimated net value of patient effort. The estimated net value of patient muscle effort is used to determine a target airway pressure, which is then used to determine a target inspiratory pressure to be delivered to a patient. The target inspiratory pressure is used to determine an onset and/or end of a ventilation cycle and therefore improves the synchronization between the ventilator and the patient. | 12-25-2014 |
20140373846 | Breathing Apparatus - The present invention relates to improvements to powered air purifying respirators (PAPR). PAPR are known generally for use in polluted environments. A typical PAPR comprises a powered impellor arranged to draw air from the atmosphere, a filter element and a mask to provide the filtered and pressurized air to the user. Embodiments of the present invention place a generator unit, comprising a filter and impellor for pressurizing the air, behind the head of the user, and include components for improving delivery of the air to the user and improving its quality. | 12-25-2014 |
20150007823 | METHOD FOR CALIBRATING THE LEVEL OF OXYGEN IN RESPIRATORY GAS RELATED TO THE LEVEL OF OXYGEN IN THE BLOOD CIRCULATION OF AN INDIVIDUAL - The present invention relates to a method for calibrating, or adjusting, the level of oxygen in respiratory gas related to the level of oxygen in the blood circulation of the individual, comprising providing a level of oxygen in the gas flow passing into, or out, of the respiratory system of the individual and producing a corresponding first output, providing a level of oxygen in the blood circulation of the individual and producing a corresponding second output, providing a computer for receiving and storing at least two measurements, each measurement being the concurrent output of said first output and said second output within a data structure, in which the two stored outputs are mutually related, in data storage means associated with the computer, the at least two measurements being conducted at respective levels of oxygen in the gas flow passing into the respiratory system, and calibrating the level of oxygen in the gas value in response to a delay between the level of oxygen in the blood circulation of the individual and the level of oxygen in the gas flow passing into, or out, of the respiratory system of the individual. | 01-08-2015 |
20150013679 | VENTILATORY ASSISTANCE FOR TREATMENT OF CARDIAC FAILURE AND CHEYNE-STOKES BREATHING - Method and apparatus for the treatment of cardiac failure, Cheyne Stokes breathing or central sleep apnea are disclosed. A subject is provided with ventilatory support. Respiratory airflow is determined. From the respiratory airflow are derived a measure of instantaneous ventilation (for example half the absolute value of the respiratory airflow) and a measure of longterm average ventilation. A target ventilation is taken as 95% of the longterm average ventilation. The instantaneous ventilation is fed as the input signal to a clipped integral controller, with the target ventilation as the reference signal. The output of the controller determines the degree of ventilatory support. A third measure of ventilation, for example instantaneous ventilation low pass filtered with a time constant of 5 seconds, is calculated. Ventilatory support is in phase with the subject's respiratory airflow to the fuzzy extent that this ventilation is above target, and at a preset rate conversely. | 01-15-2015 |
20150020808 | METHODS AND APPARATUS WITH IMPROVED VENTILATORY SUPPORT CYCLING - A ventilator that delivers air at different pressures to a patient during inspiratory and expiratory cycles of breathing and that cycles from inspiratory to expiratory operation when the patient's respiratory flow passes a threshold level. The threshold generally increases form the beginning of inspiration to the end of inspiration. The increase can be linear over all or only a proton of the inspiratory cycle, and the threshold can be adjusted so that cycling is prevented during the initial portion of an inspiratory cycle. The minimum and maximum levels may both be functions of peak flow and the threshold may increase as a function of elapsed inspiratory time. The rate at which the threshold increases from a minimum level to a maximum level may be adjustable for individual patient needs and may be determined from previous breaths. | 01-22-2015 |
20150027445 | SYSTEMS AND METHODS FOR INTRA-PULMONARY PERCUSSIVE VENTILATION INTEGRATED IN A VENTILATOR - System and methods for providing respiratory therapy include predetermined and/or automatically determined perturbations of levels of pressure, flow, and/or other gas parameters integrated and/or combined (Start with a supplied pressurized flow of breathable gas for a subject. The perturbations are intended to improve secretion management through intra-pulmonary percussive ventilation integrated with ventilation therapy. | 01-29-2015 |
20150040904 | EXHALATION VALVE AND RESPIRATORY ASSISTANCE DEVICE - Exhalation valve including a diaphragm for opening and closing an outlet of an exhalation flow path for guiding exhaled air to the outside air, a back chamber provided opposite the exhalation flow path in the diaphragm and forming a space together with the diaphragm, and a pump unit fixed to the circumference of the back chamber for adjusting the air pressure inside the back chamber by feeding and discharging of air to and from the back chamber. The diaphragm closes the outlet of the exhalation flow path when the air pressure inside the exhalation flow path is lower than the air pressure inside the back chamber, and opens the outlet of the exhalation flow path when the air pressure inside the exhalation flow path is higher than the air pressure inside the back chamber. | 02-12-2015 |
20150040905 | SYSTEMS AND METHODS FOR PROVIDING VENTILATION - Systems and methods for providing ventilation assistance or control are disclosed. Systems and methods for providing randomized ventilation are disclosed. Methods for operating a ventilation system while preventing or reducing the occurrence of ventilator associated lung injury are disclosed. Devices, systems, and methods for providing passive ventilation are disclosed. | 02-12-2015 |
20150047639 | METHOD AND APPARATUS FOR IMPROVING THE COMFORT OF CPAP - A low-cost CPAP apparatus in which, upon detection of the transition from inhalation to exhalation, the blower motor is de-energized to allow it to freewheel. When the pressure in the patient mask (or whatever interface is utilized) reaches a minimum pressure level during exhalation, the motor is re-energized and its speed is controlled so to maintain the pressure at a level suitable for exhalation. Upon detection of the transition from exhalation to inhalation, the motor speed is increased to provide higher pressures in the patient mask suitable for inhalation. | 02-19-2015 |
20150059752 | APPARATUS FOR ASSISTED VENTILATION AND CORRESPONDING REGULATION METHOD - An apparatus, for assisted ventilation ( | 03-05-2015 |
20150059753 | SYSTEM AND METHOD FOR CONTROLLING INSUFFLATION PRESSURE DURING INEXSUFFLATION - The present disclosure pertains to a system and method for controlling insufflation pressure during inexsufflation of a subject. The system inexsufflates the subject such that tidal flow and/or tidal volume are monitored during insufflation, and insufflation pressure is adjusted to maintain the flow rate of the pressurized flow of breathable gas until a target tidal volume is reached for the insufflation. When the target tidal volume has substantially been reached, the system is causes gas to be evacuated from the airway of the subject. This may provide for more precise, customized therapy for the subject than is provided by conventional inexsufflation systems in which inspiratory flow may not be monitored and/or controlled. In one embodiment, the system comprises one or more of a pressure generator, a subject interface, one or more sensors, a processor, a user interface, electronic storage, and/or other components. | 03-05-2015 |
20150059754 | SYSTEM AND METHOD FOR POWER OF BREATHING REAL-TIME ASSESSMENT AND CLOSED-LOOP CONTROLLER - A system, method and non-transitory computer readable storage medium for retrieving a breathing reference value, assessing a breathing value of a test subject via a ventilator, identifying a difference between the breathing reference value and the breathing value of the test subject and generating a setting adjustment value to adjust a setting on the ventilator based on the identified difference. | 03-05-2015 |
20150059755 | APPARATUS AND METHODS FOR VENTILATORY TREATMENT - Disclosed is an apparatus for treating a respiratory disorder, configured to compute a measure of typical recent ventilation such that a rate of adjustment of the measure of typical recent ventilation is reduced as a measure of recent uncompensated leak increases. Also disclosed is an apparatus for treating a respiratory disorder, configured to compute a target ventilation from a product of a measure of typical recent ventilation and a target fraction, wherein the target fraction is dependent on the recent pressure support. | 03-05-2015 |
20150059756 | Systems and Methods for Optimizing Medical Care Through Data Monitoring and Feedback Treatment - Systems, methods, and computer-readable media for providing a decision support solution to medical professionals to optimize medical care through data monitoring and feedback treatment are provided herein. In another embodiment, a computer-implemented method for modeling patient outcomes resulting from treatment in a specific medical area includes receiving patient-specific data associated with a patient, determining a plurality of possible patient states under which the patient can be categorized, a current patient state under which the patient can be categorized and determining probabilities of the patient transitioning from any of the possible patient states to every other possible patient state. | 03-05-2015 |
20150068527 | TURBINE VENTILATOR PRESSURE-CONTROLLED VENTILATION METHOD - A turbine ventilator pressure-controlled ventilation method comprising the following steps: a ventilator is started up, a control unit in the ventilator controls a turbine motor to rotate at rotational speed U, the turbine motor provides the ventilator with a hyperbaric gas; a detector unit detects the breathing state of a patient, if the patient is in an inhalation state, proceeds to an inhalation phase control, and, if the patient is in an exhalation state, proceeds to an exhalation phase control; the air pressure of an inhalation phase is controlled by the control unit by controlling driving voltage V | 03-12-2015 |
20150068528 | CONTINUOUS POSITIVE AIRWAY PRESSURE THERAPY TARGET PRESSURE COMFORT SIGNATURE - A comfort signature that naturally adapts delivered pressure to patient breathing by measuring comfort directly from the source is disclosed. Pressure is measured at the patient interface and is used to provide a comfortable and suitable target pressure adjustment that is synchronized with patient respiration. | 03-12-2015 |
20150068529 | ZERO PRESSURE START CONTINUOUS POSITIVE AIRWAY PRESSURE THERAPY - A respiratory assistance device is disclosed. There is a patient interface for coupling to a patient respiratory passageway, and a selectively regulated therapeutic gas flow source in pneumatic communication with the patient over the patient interface. A controller is connected to the therapeutic gas flow source and is receptive to inputs of a prescription pressure level and an initial delay duration. After the patient dons the patient interface, therapeutic gas flow is restricted for the initial delay duration following receipt of a treatment initiation command. Upon the expiry of the initial delay duration, the controller increases therapeutic gas flow to the prescription pressure level. | 03-12-2015 |
20150083135 | VENTILATOR TURBINE-BASED VOLUME-CONTROLLED VENTILATION METHOD - A ventilator turbine volume-controlled ventilation method comprises the main steps of: the ventilator is started up, a control unit in the ventilator issues a rotation speed U control instruction to a turbine driver, the turbine driver drives a turbine motor, and then the control unit detects the breathing state of a patient, if the patient needs to inhale air, proceeds to an inhalation phase control, and, if the patient needs to exhale air, proceeds to an exhalation phase control, where the inhalation phase control is implemented by the control unit that outputs driving voltage V | 03-26-2015 |
20150090264 | METHODS AND SYSTEMS FOR PROPORTIONAL ASSIST VENTILATION - The systems and methods include providing a negative proportional assist breath type, a time adjusted negative proportional assist breath type, or a time adjusted proportional assist breath type during ventilation of a patient with a ventilator. | 04-02-2015 |
20150090265 | LEAK DETERMINATION IN A BREATHING ASSISTANCE SYSTEM - Systems and methods for estimating a leak flow in a breathing assistance system including a ventilation device connected to a patient are provided. Data of a flow waveform indicating the flow of gas between the ventilation device and the patient is accessed. A specific portion of the flow waveform is identified, and a linear regression of the identified portion of the flow waveform is performed to determine an estimated leak flow in the breathing assistance system. | 04-02-2015 |
20150096564 | HEART RATE COHERENCE USING RESPIRATORY THERAPY DEVICES - Systems and methods for improving the heart rate coherence and/or heart rate variability of a subject use a respiratory therapy device to provide breathing cues that prompt a subject to breathe such that various respiratory and coronary parameters are aligned, for example in phase. | 04-09-2015 |
20150096565 | POSITIVE AIRWAY PRESSURE SYSTEM WITH HEAD POSITION CONTROL - The invention is directed to a positive airway pressure (PAP) system with a head mounted harness assembly with a housing and a head position sensor located within or secured to the housing that detects the position of a patient's head, and communicates this head position information to a controller of the system which may be disposed within the housing having the position sensor or a second housing. The controller varies the output pressure of the pressure source e.g., a rotary compressor, based, at least in part, on the head position information provided by the head position sensor. In a preferred embodiment, the position sensor is an accelerometer. | 04-09-2015 |
20150101608 | TOROIDAL RING VENTILATOR - The toroidal ring ventilator system is a compact and portable artificial respiration system. A vortex ring generator delivers a FiO | 04-16-2015 |
20150101609 | Monitoring Positive End Expiratory Pressure With Photoplethysmography - Provided according to embodiments of the invention are methods for monitoring the application of positive end expiratory pressure (PEEP) to an individual. Such methods include isolating a pulsatile arterial component (PAC) signal and a venous impedance component (VIC) signal of a PPG signal obtained from a central source site of the individual; monitoring the PAC signal, the VIC signal, or both, over time; and adjusting the level of PEEP based on the PAC signal, the VIC signal, or both. | 04-16-2015 |
20150107594 | System and Method for Diagnosis and Treatment of a Breathing Pattern of a Patient - Described is a system including a sensor and a processing arrangement. The sensor measures data corresponding to a patient's breathing patterns. The processing arrangement analyzes the breathing patterns to determine whether the breathing patterns are indicative of a REM sleep state. In another embodiment, the processing arrangement analyzes the breathing patterns to determine whether the breathing patterns are indicative of one of the following states: (i) a wake state and (ii) a sleep state. In another embodiment, a neural network analyzes the data to determine whether the breathing patterns are indicative of one of the following states: (i) a REM sleep state, (ii) a wake state and (iii) a sleep state. In another embodiment, the processing arrangement analyzes the data to determine whether the breathing pattern is indicative of an arousal. | 04-23-2015 |
20150114395 | METHOD AND ARRANGEMENT FOR DETERMINING A VENTILATION NEED SPECIFIC FOR A PATIENT - A method for determining a ventilation need specific for a patient is disclosed herein. The method includes providing a breath gas with a machine ventilator circuit from a starting pressure to lungs to start inspiration, and filling lungs to a predetermined breath gas pressure level. The method also includes determining in a control unit a filling volume of the breath gas needed to achieve the predetermined breath gas pressure level from the starting pressure, and determining in the control unit a lung elastic property based on a relationship between the determined filling volume of the breath gas and differences in the starting pressure and the predetermined breath gas pressure level. The method also includes determining in the control unit a respiration rate exploiting at least the lung elastic property. A corresponding arrangement is also provided. | 04-30-2015 |
20150114396 | METHODS AND APPARATUS FOR PRESSURE TREATMENT MODULATION - Respiratory pressure treatment apparatus include automated methodologies for controlling modulation of pressure during an inspiratory phase or an expiratory phase of patient respiration. The changes in pressure result in various pressure waveforms that may be suitable for treating patients suffering from respiratory insufficiency such as Chronic Obstructive Pulmonary Disease. In example embodiments, a pressure rise or pressure increase may be controlled during a period of patient expiration by implementation of linear, cubic and/or quartic functions that serve as control parameters in a processor that controls a flow generator. One or more of the functions may optionally serve as a control parameter to control the pressure increase during an expiration period and a following decrease during the period of expiration. In some embodiments, such functions may further control a decrease in pressure during a period of patient inspiration, such as a decrease prior to mid-inspiration. | 04-30-2015 |
20150122260 | RESPIRATORY TUBING SET - The present invention relates to a respiratory tubing set for controlling breathing of a patient. A tubing set for controlling breathing of a patient includes a respiratory conduit. The respiratory conduit is configured to be coupled to a patient interface device and is further configured to be coupled to a pressurized air generating device. The respiratory conduit includes at least two airflow control devices, positioned between the patient interface device and the pressurized air generating device that cooperate to closely control the CO | 05-07-2015 |
20150128948 | METHOD AND APPARATUS FOR BREATHING ASSISTANCE - Methods and system for treating obstructive sleep apnea and snoring are disclosed. The system generally comprises a mask for delivering pressurized air to patient's breathing orifice, a sensing mechanism for continuously assessing the state of patient's breathing and a pressure generator for generating the pressurized air in the mask. The pressurized air is applied to the breathing orifice only during selected portions of the breathing cycle, when such pressure might be required to prevent occlusion of the airway or to restore patency of the airway after such occlusion occurs. | 05-14-2015 |
20150136135 | SYSTEM AND METHOD FOR CONTROLLING FLOW DURING EXHALATION IN A RESPIRATORY SUPPORT SYSTEM - The present disclosure pertains to an exhalation valve system ( | 05-21-2015 |
20150136136 | CONTROL OF PRESSURE FOR BREATHING COMFORT - A respiratory treatment apparatus generates an indication of inspiration or expiration based on a measure of motor current of a flow generator. In an example, first and second current signals are derived from the measurement. The first derived current signal may be a long term measure or average of current and the second derived current signal may be a short term measure or average of current. A processor ( | 05-21-2015 |
20150290408 | METHODS FOR CONTROLLING MECHANICAL LUNG VENTILATION - A method for controlling mechanical lung ventilation is described. The method may include intermittently switching the airway pressure of the patient from a substantially constant high baseline pressure level to a substantially constant low baseline pressure and vice-versa such that the patient is able to breathe spontaneously in both high and low baseline pressure levels; detecting an inspiration effort by the patient inside a trigger time window that immediately precedes a switching event of the intermittently switching the airway pressure; maintaining a baseline pressure at the level in which the inspiration effort was detected so that the patient can complete the inspiration-exhalation cycle; and switching the baseline pressure level after a delay time. | 10-15-2015 |
20150306325 | SYSTEM FOR PROVIDING PRESSURE PULSES TO THE AIRWAY OF A SUBJECT - A pressure generation system for a pressure support system ( | 10-29-2015 |
20150314089 | SYSTEMS AND METHODS FOR TRIGGERING AND CYCLING A VENTILATOR BASED ON RECONSTRUCTED PATIENT EFFORT SIGNAL - Various embodiments of the present disclosure provide systems, methods and devices for respiratory support. As one example, a method for respiratory support is described that includes providing a measured pressure, and calculating a net flow based on at least one measured inlet flow and measured outlet flow. A relationship between a first value related to the measured pressure, a second value related to the measured net flow and a third value related to patient effort is used to provide a prediction of patient effort. An interim value is updated based at least in part on the prediction of the patient effort, and used to help compute a patient effort. A ventilation cycle is initiated using the computed patient effort. | 11-05-2015 |
20150314091 | SYSTEM AND METHOD FOR LIMITING FLOW AND/OR PRESSURE COMPENSATION DURING LIMITED FLOW RESPIRATORY THERAPY - The present disclosure pertains to a pressure support system ( | 11-05-2015 |
20150320955 | HANDHELD PRESSURE SUPPORT SYSTEM FOR TREATING HYPERINFLATION - A portable handheld pressure support system ( | 11-12-2015 |
20150328417 | VENTILATION SYSTEM - A respiration device ( | 11-19-2015 |
20150328419 | INSPIRATORY PRESSURE CONTROL IN VOLUME MODE VENTILATION - The present disclosure pertains to a mechanical ventilator system configured to deliver a pressurized flow of breathable gas to the airway of a subject. The system is configured to generate the pressurized flow of breathable gas according to a volume control mode therapy regime that delivers a target tidal volume to the subject during inhalation. During an individual inhalation, the system is configured to determine and/or adjust an inspiratory pressure level of the pressurized flow of breathable gas of the volume control mode therapy regime. The inspiratory pressure level is adjusted such that during the inhalation the inspiratory pressure level is not reduced to impede respiratory effort by the subject responsive to the target tidal volume being exceeded during the inhalation. The system comprises one or more of a pressure generator, a subject interface, one or more sensors, one or more processors, a user interface, electronic storage, and/or other components. | 11-19-2015 |
20150335840 | SYSTEM AND METHOD FOR CONTROLLING AIRWAY GAS PARAMETERS DURING HIGH FREQUENCY POSITIVE PRESSURE VENTILATION - The present disclosure pertains to a high frequency positive pressure ventilation system. The system may be configured to maintain a time-averaged airway pressure level at a target time-averaged airway pressure level and/or a peak-to-peak pressure difference at a target peak-to-peak pressure difference. In some embodiments, the system is configured to control the inspiratory subsystem, the expiratory flow generator and exhalation valve in accordance with a high frequency positive pressure ventilation therapy regime. | 11-26-2015 |
20150335850 | CONTROL OF NEONATAL OXYGEN SUPPLY - A system and method to control oxygen supply uses determinations whether physiological sensors and/or a subject interface appliance have been displaced in relation to a subject and/or there has been movement of the subject itself. Artifacts that may reduce the accuracy of measurements of physiological parameters, in particular related to a level of arterial oxygen saturation, may be detected through determinations pertaining to sensor displacement, displacement of the subject interface appliance and/or movement of the subject. | 11-26-2015 |
20150343161 | Detection of Periodic Breathing During CPAP Therapy - An improvement to a breathing therapy machine to detect and rate occurrences of periodic breathing and to alter the therapy delivered to a user of the device based on the rating. | 12-03-2015 |
20150352302 | Electrically Operable Resuscitators - The present invention relates to an electrically operable resuscitation device comprising a pump including a rigid cylinder including at least one gas inlet and at least one gas outlet, a piston to travel in said cylinder, and at least one valve, the or each valve configured to allow gas to be displaced into said cylinder through said at least one gas inlet during at least one of a first stroke direction and second stroke direction of said piston in said cylinder, and for allowing gas to displaced through said at least one gas outlet during an opposite of said at least one of the first stroke direction and second stroke direction of said piston in said cylinder; a motor, selected from one of a stepper motor and feedback motor and stepper motor with feedback and linear motor, operatively connected to said piston to move said piston in said cylinder; a patient interface in ducted fluid connection with said pump to receive gas via said at least one gas outlet and to deliver said gas to said patient. | 12-10-2015 |
20150359983 | Ventilation method and control of a ventilator based on same - The invention provides an improved ventilation method and method for controlling a ventilator apparatus in accordance with same. More specifically, the present invention relates to a method of controlling a ventilator apparatus comprising the steps of placing a ventilator in a mode capable of adjusting airway pressure (P) and time (T), monitoring expiratory gas flow, analyzing the expiratory gas flow over time (T) to establish an expiratory gas flow pattern, and setting and/or adjusting a low time (T | 12-17-2015 |
20150367092 | POSITION CONTROL DEVICES AND METHODS FOR USE WITH POSITIVE AIRWAY PRESSURE SYSTEMS - Described here are positive airway pressure (PAP) systems and methods with various mechanisms for altering the air pressure based in part on the head position of the user. This can be achieved actively or passively. Passively, pressure is altered when head position is altered, as gravity acts to open or close venting elements. Actively, head position information can then be communicated to a controller of the system which may be disposed within the housing having the position sensor or within a separate housing. The controller varies the output pressure of the pressure source, e.g. a rotary compressor, based, at least in part, on the head position information provided. | 12-24-2015 |
20150367127 | TRANSVASCULAR DIAPHRAGM PACING SYSTEMS AND METHODS OF USE - Transvascular diaphragm pacing systems (TOPS) and methods are disclosed for providing respiratory therapy to a patient. The TDPS can provide rapid insertion and deployment of endo vascular pacing electrodes in critically ill patients who require intubation and invasive PPMV in order to support the physiological requirements of she human ventilatory system. The systems and methods make best use of the contractile properties of the diaphragm muscle and prevent muscle disuse and muscle atrophy. This can be carried out by engaging the phrenic nerves using patterned functional electrical stimulation applied to endovascular electrodes that are temporarily and reversibly inserted in central veins of the patient, such as the left subclavian vein and the superior vena cava. The TDPS can be designed to seamlessly interface with any commercially available positive-pressure ventilatory assistance/support equipment such as is commonly in use in hospital intensive care units (ICU) for treating critically ill patients with breathing insufficiencies, pain, trauma, sepsis or neurological diseases or deficits. | 12-24-2015 |
20160001001 | VENTILATORY ASSIST DEVICE - A respiratory support device ( | 01-07-2016 |
20160008559 | A SYSTEM AND METHOD FOR SYNCHRONIZATION OF BREATHING IN A MECHANICAL VENTILATOR | 01-14-2016 |
20160008561 | SYSTEM FOR AUTOMATED ADJUSTMENT OF A PRESSURE SET BY A RESPIRATION DEVICE | 01-14-2016 |
20160015917 | Phenotyping Of Sleep Breathing Disorders Using A Breathing Therapy Machine - An improvement for existing breathing therapy machines which allows the machine to determine a patient's dominant respiratory phenotype using an auto-titration mode and flow sensor. | 01-21-2016 |
20160015918 | SYSTEM, APPARATUS AND METHODS FOR SUPPLYING GASES - A system, apparatus and methods are provided for supplying gases to a user. The supply includes a sub-therapeutic mode and a pressure support mode for delivering therapy to a user. A flow diversion device or valve switches from a first mode corresponding with the sub-therapeutic mode of the system to a second mode corresponding with the pressure support mode of the system. In the first mode, the valve opens a larger flow path between the interior of the user interface and ambient air than in the second mode. | 01-21-2016 |
20160022937 | Method of Optimizing Therapy Pressure In A Breathing Therapy Machine Having An Auto-Adjust Feature - An improvement for existing breathing therapy machines which seeks the optimum therapy pressure using an auto-adjust algorithm. | 01-28-2016 |
20160022938 | MULT-NIGHT TITRATION PRESSURE DETERMINATION - A multi-night titration (MNT) process to find an optimal single therapeutic pressure of a CPAP device. This single therapeutic pressure can then be used on an on-going basis by the patient after the titration period. The MNT process differs from current auto adjusting processes used for titration (or ongoing use) in that the MNT process does not respond locally by adjusting pressures to individual events. With existing devices, the continuous adjustment of supplied air pressure always responds to one or a small number of events and thus fails to compensate for a patient's adaptation thereto, resulting in the supply of a less than optimal therapeutic pressure to the patient. While auto adjusting processes often capture and respond well to short-term and transient conditions, the MNT process of the current disclosure seeks to capture long term trends and find the most suitable average single pressure for a patient. | 01-28-2016 |
20160030691 | CRITICAL CARE VENTILATOR WITH MOUTH PIECE VENTILATION - Systems and methods for providing respiratory support to a subject by intermittently delivering pressurized flow of breathable gas to a subject are described. A system may include, for example, a pressure generator, an interface appliance configured to communicate a flow of gas generated by the pressure generator to an airway of the subject, one or more sensors, and one or more processors configured to execute one or more computer program modules. The computer program modules may be configured, for example, to determine whether the subject is ready to receive the pressurized flow of breathable gas, to initiate and/or terminate delivery of the pressurized flow of breathable gas to the airway of the subject, and to control the pressure generator and the interface appliance so as to appropriately deliver the pressurized flow of breathable gas based on a prescribed therapy regimen designed to ventilate the subject. | 02-04-2016 |
20160038697 | MEASURING RESPIRATORY MECHANICS PARAMETERS OF VENTILATED PATIENTS - An airflow perturbation device for measuring respiratory resistance of a patient breathing with the use of a ventilator comprises a sealed housing having a first port and a second port each configured to couple to a ventilator hose, a perturbation mechanism to periodically alter air flow resistance between the first port and the second port, a pneumotachometer comprising a flow sensor to measure airflow between the first port and the second port, a pressure sensor to measure a difference in air pressure between the first port and the second port, and a computing system comprising at least one processor configured to receive data from the flow sensor and pressure sensor. The computing system determines an airflow resistance based on the received data. Embodiments of the present invention further include a method and computer program product for measuring respiratory resistance of a ventilated patient in substantially the same manners described above. | 02-11-2016 |
20160038698 | ADJUSTMENT OF TARGET VENTILATION IN A SERVOVENTILATOR - A servoventilator control slowly changes the target ventilation over a period of time, according to a preprogrammed schedule adapted to be set by the physician. Preferably, the target ventilation stays constant at an initial target ventilation for an initial hold time, and then increases at a constant rate until it reaches a final target ventilation, whereupon it stays constant thereafter. If the pressure support level is too high, possibly indicating glottic or upper airway closure, the rate of increase of target ventilation may be lowered or the final target ventilation not reached. | 02-11-2016 |
20160045694 | METHODS AND SYSTEMS FOR BREATH DELIVERY SYNCHRONIZATION - Systems and methods for triggering inspiration and/or cycling exhalation with a ventilator are described herein. In particular, systems and methods for synchronizing ventilator breath delivery with patient breath demand utilizing a digital sample counting trigger mode are described herein. The digital sample counting triggering mode characterizes digital samples taken from a measured or estimated parameter during the patient inhalation/exhalation period to synchronize breath delivery with patient breath demand. | 02-18-2016 |
20160045695 | METHODS, SYSTEMS AND DEVICES FOR NON-INVASIVE OPEN VENTILATION WITH GAS DELIVERY NOZZLES WITH AN OUTER TUBE - A non-invasive ventilation system may include at least one outer tube with a proximal lateral end of the outer tube adapted to extend to a side of a nose. The at least one outer tube may also include a throat section. At least one coupler may be located at a distal section of the outer tube for impinging at least one nostril and positioning the at least one outer tube relative to the at least one nostril. At least one jet nozzle may be positioned within the outer tube at the proximal lateral end and in fluid communication with a pressurized gas supply. At least one opening in the distal section may be adapted to be in fluid communication with the nostril. At least one aperture in the at least one outer tube may be in fluid communication with ambient air. The at least one aperture may be in proximity to the at least one jet nozzle. | 02-18-2016 |
20160045696 | TOROIDAL RING VENTILATOR - The mechanical ventilator system is a compact and portable artificial respiration system. A vortex ring generator delivers a FiO | 02-18-2016 |
20160051791 | Apparatus, Systems, and Methods For Treating Obstructive Sleep Apnea - Apparatus, systems, and methods are provided for treating obstructive sleep apnea. A unitary valve assembly removably located inside the exterior profile of a nasal pillow mask uses positive airway pressure from a low-flow hose to automatically create an on-demand therapeutic air splint in the pharynx. During inspiration the mask's valving system allows room air to be inspired. During exhalation another valve governs therapeutic backpressure equal to the prescribed pressure setting of the CPAP blower machine. The mask may be worn when the CPAP blower machine is off, and systems are provided for turning the CPAP blower machine on only when needed. | 02-25-2016 |
20160058963 | BREATHABLE GAS SUPPLY SYSTEM, CONTROL METHOD THEREOF AND COMPUTER PROGRAM PRODUCT IMPLEMENTING THE METHOD - A breathable gas supply system comprises a flow sensor, a control unit and a storage unit. The flow sensor detects a gas state of a flow channel. The control unit provides an initial template value and continuously receives sampled breath values from the flow sensor to repetitively perform a first breath sampling process so as to generate a first template value for replacing the initial template value; then the control unit continuously receives sampled breath values from the flow sensor to repetitively perform a second breath sampling process so as to generate a second template value; finally the control unit integrates the first template value and the second template value to obtain an updated template value for replacing the first template value, and the aforesaid operations are repeated to generate a new second template value to obtain a new updated template value. The storage unit stores the first template value, each second template value and each updated template value. A method of controlling the breathable gas supply system and a computer program product implementing the method are also provided. | 03-03-2016 |
20160058964 | RESPIRATION DEVICE AND METHOD FOR A RESPIRATION DEVICE - The present invention relates to a method and a respiration device having a respiration unit for generating an airflow for the respiration and having a monitoring unit. The monitoring unit is used to detect a respiration parameter and to classify events in the respiration on the basis of monitoring of the respiration parameter. In this case, the monitoring unit is able and designed to carry out an event analysis to recognize an occurrence, which is characteristic for Cheyne-Stokes respiration, of chronologically successive events and for this purpose to ascertain the period length thereof and to compare them to one another and to register the presence of Cheyne-Stokes respiration when the compared period lengths each deviate by less than 40% from one another. | 03-03-2016 |
20160067433 | METHOD AND APPARATUS FOR NON-INVASIVE MONITORING OF RESPIRATORY PARAMETERS IN SLEEP DISORDERED BREATHING - An air delivery system includes a controllable flow generator operable to generate a supply of pressurized breathable gas to be provided to a patient for treatment and a pulse oximeter configured to determine a measure of patient effort during a treatment period and provide a patient effort signal for input to control operation of the flow generator. | 03-10-2016 |
20160074605 | GAS EXHAUST CONTROL METHOD AND RESPIRATORY ASSISTANCE APPARATUS APPLIED WITH THE SAME - A gas exhaust control method applied to a respiratory assistance apparatus includes the following steps of: applying gas to a face mask of the respiratory assistance apparatus; detecting a pressure in the face mask; when the pressure in the face mask is lower than a preset pressure range, shrinking a perforation size of an exhaust structure of the face mask by a driving unit of the respiratory assistance apparatus; and when the pressure in the face mask is higher than the preset pressure range, expanding the perforation size of the exhaust structure of the face mask by the driving unit. A respiratory assistance apparatus applied with the gas exhaust control method is also disclosed. | 03-17-2016 |
20160074606 | DISTINGUISHING BETWEEN CENTRAL AND OBSTRUCTIVE SLEEP APNEA - Apparatuses and methods for detecting sleep apnea and classifying the events as obstructive sleep apnea (OSA) and/or central sleep apnea (CSA) are disclosed herein. The apparatuses can include respiratory treatment devices that have an auto adjusting algorithm that is able to classify a sleep apnea as CSA or OSA so that an appropriate pressure can be applied to the patient depending on the type of sleep apnea detected. The apparatuses and methods can use characteristics of at least one breath preceding the apnea event in classifying the event. | 03-17-2016 |
20160074607 | Bi-level Positive Airway Pressure Device - A bi-level positive airway pressure device includes a housing that has a patient port for connecting to an airway of a patient. Within the housing is a device that generates a positive airway pressure directed towards to patient port. Also within the housing is a system that mechanically detects exhalation (by the patient that is connected to the patient port) that enters into the patient port. Responsive to detecting exhalation, a blocking device occludes the device that generating positive airway pressure, thereby reducing or stopping the positive airway pressure until the system that mechanically detects exhalation no longer detects exhalation, at which time the blocking device is operated to no longer occlude the device for generating positive airway pressure, thereby providing positive airway pressure to the patient port during, for example, inhalation. | 03-17-2016 |
20160074608 | NASAL PILLOWS WITH HIGH VOLUME BYPASS FLOW AND METHOD OF USING SAME - A fan unit which in use forms part of a gases supply unit, the gases supply unit suitable for use as part of a system for providing heated humidified gases to a user, the fan unit having a casing that has an inlet aperture and an outlet passage, the outlet passage including an exit aperture, the fan unit also including a fan which is located inside the casing and which is adapted for connection to a motor to drive rotation of the fan in use, the fan drawing gases into the casing via the inlet aperture, and forcing these gases out of the casing via the outlet passage as a gases stream, the outlet passage further including at least one bypass vent hole independent of the exit aperture and arranged at an angle to the path of the gases stream through the outlet passage. | 03-17-2016 |
20160074618 | VENT ARRANGEMENT FOR RESPIRATORY DEVICE - A vent arrangement for a respiratory pressure therapy device may include one or a plurality of vents configured with a variable aperture for communicating a flow of breathable gas. The vent arrangement may be configured with a cross section profile exposed to the flow of breathable gas communicating through the vent that does not change as the aperture size changes. A vent arrangement may include a plurality of the vents and the aperture size of each vent may be controlled independently or together, and may be controlled according to one or more input signals from one or more sensors. Examples of suitable input signals include flow, pressure, noise, accelerometer outputs, orientation of a patient or presence of any obstructions. A patient interface or an air circuit may include the vent arrangement, or the vent arrangement may be configured to connect with a patient interface or an air circuit. | 03-17-2016 |
20160082209 | SYSTEM AND RESPIRATION APPLIANCE FOR SUPPORTING THE AIRWAY OF A SUBJECT - A respiration appliance, system, and method for supporting the airway of a subject as the subject breaths. The flow of gas from the lungs of the subject during exhalation is leveraged to provide support to the airway. In particular, a body that encloses one or more external orifices of the subject provides a resistance differential between inhaled gas flows and exhaled gas flows that supports the subject's airway. | 03-24-2016 |
20160082210 | Method for Detecting an Inspiratory Flow Limitation During Sleep-Disordered breathing - A feature implemented in a CPAP breathing therapy machine to determine if the patient is suffering from a flow limitation condition and if so, altering the operation of the CPAP machine to attempt to alleviate the condition. | 03-24-2016 |
20160089509 | PRESSURE SUPPORT SYSTEM FOR BREATH STACKING THERAPY - The present disclosure pertains to a pressure support system ( | 03-31-2016 |
20160095997 | Methods, Systems and Devices for Non-Invasive Open Ventilation for Treating Airway Obstructions - A system for reducing airway obstructions of a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle, and at least one spontaneous respiration sensor in communication with the control unit for detecting a respiration effort pattern and a need for supporting airway patency. The system may be open to ambient. The control unit may determine more than one gas output velocities. The more than one gas output velocities may be synchronized with different parts of a spontaneous breath effort cycle, and a gas output velocity may be determined by a need for supporting airway patency. | 04-07-2016 |
20160101250 | AUTOTITRATING METHOD AND APPARATUS - An apparatus and method of controlling the delivery of therapeutic gas delivered to a patient undergoing positive airway pressure therapy is described. The method includes providing a flow of gas to a patient's airway at a pressure, obtaining information from the range of 0 to 25 Hz of the frequency domain of the flow, and adjusting the pressure based on the information. The apparatus includes a blower for providing a flow of gas to a patient's airway at a pressure, a sensor to measure a characteristic of the flow, a controller to obtain information from the range of 0 to 25 Hz of the frequency domain of the characteristic, and a pressure regulator for adjusting the pressure based on the information. | 04-14-2016 |
20160101251 | VENTILATOR WITH INTEGRATED BLOWER TO PROVIDE NEGATIVE OR POSITIVE PRESSURE IN A VENTILATOR SYSTEM - A ventilator system and method for medical use includes an integrated blower. The ventilator system may include an inspiration port for connection to an inspiratory limb of a dual-limb patient circuit, and an expiration port for connection to an expiratory limb of the dual-limb patient circuit. The system also includes a gas delivery device connected to the inspiration port to supply a pressurized flow of gas to the inspiration port to generate a positive pressure, and a blower having an inlet that is operatively connected to the expiration port and configured to be controlled to selectively supply a negative pressure level between 4 and 120 cmH | 04-14-2016 |
20160114113 | Systems and Methods for Therapeutic Intrathoracic Pressure Regulation - Embodiments of the present invention provide systems and methods for delivering respiratory treatment to a patient. For example, a treatment system may include a mechanism for delivering a positive pressure breath to a patient, and one or more limb flow control assemblies which modulate gas flow to and from the patient. Exemplary treatment techniques are embodied in anesthesia machines, mechanical ventilators, and manual ventilators. | 04-28-2016 |
20160114115 | VENTILATION TRIGGERING - The systems and methods provide for novel a triggering mode that allows the patient to trigger or initiate the delivery of a breath during ventilation on a ventilator. Further, the systems and methods provide for triggering ventilation utilizing a statistical trigger mode. Additionally, the systems and methods provide for analyzing and/or displaying information related to a potential change in a triggering threshold for a currently utilized breath type. | 04-28-2016 |
20160121063 | BREATHING CONTROL USING HIGH FLOW RESPIRATION ASSISTANCE - High flow therapy is used to treat Cheyne-Stokes respiration and other types of periodic respiration disorders by periodic application of high flow therapy, adjustment of high flow therapy flow rates and/or periodic additions of CO2 or O2 into the air flow provided to the patient. | 05-05-2016 |
20160121064 | A SYSTEM AND A CORRESPONDING METHOD FOR ESTIMATING RESPIRATORY DRIVE OF MECHANICALLY VENTILATED PATIENTS - The present invention relates to a system ( | 05-05-2016 |
20160136370 | MEDICAL MEASURING DEVICE, VENTILATOR AND METHOD FOR OPERATING A MEDICAL MEASURING DEVICE OR FOR OPERATING A VENTILATOR - A medical measuring device ( | 05-19-2016 |
20160151590 | DETERMINING OF SUBJECT ZERO FLOW USING CLUSTER ANALYSIS | 06-02-2016 |
20160151593 | System and Method for Diagnosis and Treatment of a Breathing Pattern of a Patient | 06-02-2016 |
20160151594 | SYNCHRONOUS AIRWAY PRESSURE RELEASE VENTILATION | 06-02-2016 |
20160151595 | System and Method for Diagnosis and Treatment of a Breathing Pattern of a Patient | 06-02-2016 |
20160158472 | Ventilation - There is provided a method of controlling a mechanical ventilator. The method may include the steps of receiving a measurement of transthoracic impedance of a patient obtained during chest compressions, determining a timing for a mechanical ventilator to provide a ventilation based on the measurement of transthoracic impedance, and sending a signal to control the mechanical ventilator based on the determined timing. There is also provided an apparatus for performing the method. | 06-09-2016 |
20160166790 | ULTRASONIC MEASUREMENTS FOR MONITORING PATIENTS USING RESPIRATORY THERAPY DELIVERY DEVICES | 06-16-2016 |
20160166797 | SYSTEM AND METHOD FOR DELIVERY OF VARIABLE OXYGEN FLOW | 06-16-2016 |
20160184541 | CONTROL DEVICE FOR MEDICAL VENTILATORS - According to one aspect of the disclosure, a control device for a medical ventilator is disclosed. The control device has a user definable medical ventilator protocol and the control device includes means for selecting a plurality of objects from a group of objects, wherein each of the objects are segments of the ventilator protocol, and each of the objects have at least one attribute. Further, the control device includes means for arranging the plurality of objects in a sequence, means for initiating the at least one attribute to define a property for each object in the plurality of objects and a processor unit configured to execute the sequence. The medical control device gives the user flexibility to define and implement a medical ventilator protocol in a faster way than possible today and for different patients and/or ventilator situations. | 06-30-2016 |
20160199606 | METHOD AND DEVICE FOR GENERATING A CONTROL SIGNAL FOR A VENTILATOR | 07-14-2016 |
20160199607 | RESPIRATORY THERAPY APPARATUS | 07-14-2016 |
20160250427 | METHODS AND SYSTEMS FOR ADAPTIVE BASE FLOW | 09-01-2016 |
20160250428 | AUTOMATED CONTROL FOR DETECTION OF FLOW LIMITATION | 09-01-2016 |
20190143057 | Wireless Ventilator Reporting | 05-16-2019 |
20190143058 | SYSTEMS AND METHODS FOR DRIVE PRESSURE SPONTANEOUS VENTILATION | 05-16-2019 |