Patent application number | Description | Published |
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 |
20090038617 | ADMINISTRATION OF CPAP TREATMENT IN PRESENCE OF APNEA - CPAP treatment apparatus is disclosed having a controllable flow generator ( | 02-12-2009 |
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 |
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 |
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 |
20100319697 | USING MOTOR SPEED IN A PAP DEVICE TO ESTIMATE FLOW - A method and apparatus are disclosed for determining airflow through a PAP device while applying PAP therapy. The actual speed of a blower | 12-23-2010 |
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 |
20110253136 | TREATMENT OF RESPIRATORY CONDITIONS | 10-20-2011 |
20110313689 | ACOUSTIC DETECTION FOR RESPIRATORY TREATMENT APPARATUS - Methods and apparatus provide acoustic detection for automated devices such as respiratory treatment apparatus. In some embodiments of the technology, acoustic analysis of noise or sound pulses, such as a cepstrum analysis, based on signals of a sound sensor ( | 12-22-2011 |
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 |
20120227740 | ADMINISTRATION OF CPAP TREATMENT PRESSURE IN PRESENCE OF APNEA - CPAP treatment apparatus is disclosed having a controllable flow generator ( | 09-13-2012 |
20130000647 | RESPIRATORY RESISTANCE SYSTEMS AND METHODS - A patient interface includes a mask configured to communicate with at least one airway of a patient, the mask including at least one aperture ( | 01-03-2013 |
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 |
20130178761 | 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. | 07-11-2013 |
20130237793 | METHOD AND APPARATUS FOR DETECTING CARDIAC SIGNALS - Devices and systems provide methods for detecting cardiac signals from head or facial biopotential sensors. In one embodiment, a facial biopotential signal is measured by a set of sensors. A processor derives a cardiac signal from the facial biopotential signal. Optionally, heart rate is detected from the cardiac signal. Heart rate variability may be determined and evaluated by the processor to generate warnings or messages from the evaluation. One or more head or facial biopotential electrodes for measuring the facial biopotential signal may be integrated in or at a contact surface of head support structures such as a headgear support or respiratory treatment mask. In some such embodiments a controller of a respiratory treatment apparatus may serve as a cardiac signal detector by processing the facial biopotential signal from the sensors and may make control adjustments or generate warnings based on an evaluation of detected signals. | 09-12-2013 |
20130298908 | LOW COST CPAP FLOW GENERATOR AND HUMIDIFIER ASSEMBLY - A method for controlling a humidifier of a CPAP device including a controller, the method including controlling a heating element in the humidifier with command signals from the controller, sensing a temperature of a fluid in the humidifier with a sensor in the humidifier that transmits signals to the controller, establishing an acceptable operating range for the signal transmitted to the controller, determining whether the transmitted signal is within the acceptable operating range, if the signal is within the acceptable operating range treating the signal as being indicative of the temperature of the fluid in the humidifier and using the signal to control the heating element, and if the signal is outside of the acceptable operating range, the controller determines the humidifier to be unavailable. | 11-14-2013 |
20130312750 | USING MOTOR SPEED IN A PAP DEVICE TO ESTIMATE FLOW - A method and apparatus are disclosed for determining airflow through a PAP device while applying PAP therapy. The actual speed of a blower 6 is measured. The desired motor current I DES required for the actual speed to approach or maintain a desired speed is used, together with the actual speed RPM ACT, in a flow estimation algorithm to determine flow through the PAP device. The estimation algorithm consists of a two-dimensional look-up table, where the inputs are the desired motor current and actual motor speed, and the output is the flow through the PAP device. | 11-28-2013 |
20130324788 | METHOD AND APPARATUS FOR TREATMENT OF SLEEP DISORDERS - A system for therapy may include a mask ( | 12-05-2013 |
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 |
20140020684 | RESPIRATORY BREATHING APPARATUS - A respiratory apparatus comprising a base and removable chamber, wherein the chamber is configured to hold a supply of water and include a blower arrangement adapted to provide a supply of pressurized air or gas to the supply of water. In certain embodiments the respiratory apparatus includes a split motor, wherein the stationary components are located within a base and the rotating portions are located within a chamber. | 01-23-2014 |
20140069428 | VENT ARRANGEMENT FOR RESPIRATORY MASK - A control system provides automated control of gas washout of a patient interface, such as a mask or nasal prongs. A gas washout vent assembly of the system may include a variable exhaust area, such as one defined by gears, radial exhaust revolvers and/or flow diverters for a conduit having a variable gas passage channel. The vent assembly may be attached substantially near or included with the patient interface. An actuator of the assembly, such as a solenoid, motor or voice coil, manipulates the vent assembly. The actuator may be configured for control by a processor to change the exhaust area of the vent assembly based on various methodologies including, for example, sleep detection, disordered breathing event detection and/or leak detection. | 03-13-2014 |
20140166014 | ADMINISTRATION OF CPAP TREATMENT PRESSURE IN PRESENCE OF APNEA - CPAP treatment apparatus is disclosed having a controllable flow generator ( | 06-19-2014 |
20140283831 | VENT ARRANGEMENT FOR RESPIRATORY MASK - A control system ( | 09-25-2014 |
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 |
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 |
20140364758 | RESPIRATORY TREATMENT SYSTEM INCLUDING PHYSIOLOGICAL SENSORS - An apparatus assesses a condition of a patient. The apparatus may contain a patient interface for communicating a treatment generated by a respiratory treatment apparatus to the respiratory system of a patient. The apparatus may also include a sensing module containing one or more electrochemical sensors to sense chemicals in exhaled breath in real time, or over an extended period of time. The apparatus may also include one or more collectors to accumulate a breath condensate over an extended period of time. The sample collectors may contain an absorbent material, and may also be adapted for replacement within a sensing module. The absorbent material may also include a preservative for preserving a chemical component of the breath, such as an analyte of the exhaled breath. The technology may provide treatment recommendations based on the detected condition of the breath condensate or the chemical components thereof. | 12-11-2014 |
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 |