Class / Patent application number | Description | Number of patent applications / Date published |
128205120 | Means for removing substance from respiratory gas | 82 |
20080295841 | CONNECTION HEAD FOR AN ABSORBER OF AN ANESTHETIC BREATHING SYSTEM - A connection head for an absorber ( | 12-04-2008 |
20090000621 | PATIENT BREATHING SYSTEM - A patient breathing system includes a ventilator that provides a driving gas flow to generate patient inspiration. The ventilator further includes a gas inlet for driving gas, the patient breathing system being connectable to a circle which includes an inspiratory hose and an expiratory hose connected to patient, through which circle expired gases can be circulated back to the patient. The circle further includes a fresh gas inlet, an arrangement for enabling the gas flow in a desired direction, a unit for removal of the exhaled carbon dioxide, and a ventilator port for the ventilator connection. The patient breathing system further includes an arrangement by which driving gas of the ventilator has been separated from the patient gases flowing in the circle. | 01-01-2009 |
20090084383 | WATER TRAP WITH AN EMPTYING DEVICE - A breathing gas system and water trap ( | 04-02-2009 |
20090095300 | Breathing Apparatus - A breathing apparatus ( | 04-16-2009 |
20090165800 | FILTER ARRANGEMENT - To connect and disconnect a filter in a gas flow system, a filter unit has a filter housing wherein an adsorption/absorption filter is movably arranged. The filter housing has two tube connectors for connecting the filter unit in a gas conducting passage. The filter unit also has a shifting element which is movable from a first to at least a second position. The first position allows the filter to substantially fill the gas conducting passage in a way that forces the gas in the gas flow system to pass through the filter, whereas the second position substantially removes the filter from the gas conducting passage, allowing the gas to pass through the filter unit without passing the filter. | 07-02-2009 |
20090173348 | Method And Apparatus For Inducing And Controlling Hypoxia - An apparatus for inducing hypoxia in a subject is provided. The apparatus includes a breathing port, an inspiratory reservoir, means for introducing oxygen into the apparatus, means for controlling the flow rate of entry of oxygen into the apparatus at a rate below the subject's metabolic requirements, an expiratory reservoir having a vent, Sequential Gas Delivery means, and means for removing CO | 07-09-2009 |
20090188503 | SUB-TIDAL VOLUME REBREATHER AND SECOND STAGE REGULATOR - Presented is a sub-tidal volume rebreather (STVR) and various embodiments that extend the useful range and/or reduce the encumbrance of any breathable gas, whether filtered, compressed, or otherwise, used by a diver, serviceman, fireman, or other user of such equipment. In an exemplary embodiment the second stage regulator (Reg | 07-30-2009 |
20090205664 | ULTRA-VIOLET GERMICIDAL PERSONAL PROTECTION APPARATUS - A practical, germicidal, personal protection system may be worn by a user to kill or deactivate germs, viruses or other pathogens, which are located in the air to be breathed by the user. Before entering a mask, a hood or a suit worn by the user, air is exposed, in a sterilization unit, to Ultra-Violet C-band (UVC) radiation. Advantageously, the UVC radiation is lethal to undesirable germs, viruses and other pathogens. In this manner, pathogen-free air may be provided to the user. Bulbs used to generate UVC radiation are known to also promote the creation of ozone. Accordingly, the personal protection system includes means to minimize the ozone in the air that ultimately reaches the user. A similar personal protection system may also be used expose, to UVC radiation, breath exhaled from the user, thereby killing any germs, viruses or other pathogens exhaled by the user. | 08-20-2009 |
20090250060 | Disposable mask assembly with exhaust filter and valve disc and method of assembling same - A face mask assembly and method of assembling a face mask is provided for a patient that includes a face piece sized to fit over the patient's nose and mouth. The face mask assembly forms a mask chamber between the face piece and the patient's nose and mouth. An inhalation adapter is coupled to the face piece to deliver medication to the chamber. A filter housing is coupled to the face piece and includes a flange section that defines a passageway to connect the mask chamber and the flange section. A filter is positioned in the filter housing. A cover is coupled to the flange section and has an exhalation opening or vent to allow gases from the mask chamber to pass through the filter and escape from the passageway to the atmosphere. In a second embodiment, the filter housing is modified by providing a frame adjacent the bottom with a cross-shaped structure and a retainer button attached to the housing. A valve disc is provided between the retainer button and frame adapted to allow gases from the mask chamber around the valve disc towards the filter. When a patient inhales oxygen through the nasal portion, the valve disc moves towards the mask and partially covers a plurality of apertures to partially block additional air from entering the chamber. When a patient exhales contaminated oxygen, the valve disc moves towards the retainer button to allow a maximum amount of air through the apertures towards the filter. | 10-08-2009 |
20090293878 | MEDICAL BREATHING APPARATUS - A medical breathing apparatus incorporating a regulator for supplying breathing gas to a patient from an air hose ( | 12-03-2009 |
20090301493 | ADSORBENTS AND INHALATION DEVICES - An adsorbent is described. The adsorbent may include a membrane and an adsorbent material encapsulated within the membrane. An inhalation device is also described. The inhalation device may include a housing and a membrane within the housing. The membrane may encapsulate an adsorbent material. The membrane may be positioned such that airflow through the housing passes across but not through the membrane. | 12-10-2009 |
20090314295 | POWERED AIR PURIFYING RESPIRATOR - A powered air purifying respirator includes a housing defining an air inlet and an air outlet; a filter assembly operably connected to the housing for removing contaminants from air passing therethrough; an impeller/motor assembly contained within the housing for drawing air through the air inlet and through the filter; a flow sensor contained within the housing for measuring air flow from the air inlet to the air outlet; and a liner contained within the housing for locating and retaining the various internal components, while also aiding in attenuating a force of impact to the housing, the liner further defining an air pathway from the impeller/motor assembly through the flow sensor and to the air outlet. | 12-24-2009 |
20100012125 | OXYGEN BREATHING DEVICE HAVING OXYGEN BUFFER - Oxygen breathing devices, as well as methods of providing oxygen to passengers or crew members of aircraft, are detailed. The devices may include an oxygen flow path with an oxygen buffer connected thereto. | 01-21-2010 |
20100037896 | AUTOMATIC VENTILATOR SYSTEM AND METHOD - A ventilator system is disclosed herein. The ventilator system includes a collapsible reservoir assembly comprising an outer reservoir and an inner reservoir disposed at least partially within the outer reservoir. The ventilator system also includes a source of gas pneumatically coupled with the outer reservoir, and a controller operatively connected to the source of gas. The controller is configured to regulate the transmission of gas from the source of gas to the outer reservoir in order to compress the inner reservoir and thereby automatically transfer the contents of the inner reservoir. | 02-18-2010 |
20100078027 | APPARATUS FOR RECYCLING MOISTURE EXHALED FROM WORKER WITHIN DRY ROOM TO THE WORKER - The apparatus is equipped with cover unit ( | 04-01-2010 |
20100089399 | RESPIRATORY SECRETION RETENTION DEVICE, SYSTEM AND METHOD - A novel and non-obvious apparatus, system, and method for managing respiratory secretions and fluids in sections of artificial airways. In an embodiment of the invention, a respiratory secretion retention (RSR) device configured to connect to an artificial airway can be provided. The respiratory secretion retention (RSR) device can include a housing that defines a passageway for the flow of respiratory gases, a chamber that is defined by the housing, where a portion of the chamber is configured to retain exhaled respiratory particulate and liquid, and at least one element configured to provide for repositioning at least a portion of the housing with respect to the artificial airway. In an aspect of this embodiment, the at least a portion of the housing can be repositioned with respect to the artificial airway without opening the artificial airway to the atmosphere. | 04-15-2010 |
20100116275 | Emergency breathing bag - The breathing bag has an upper region; a lower region; a conduit for delivering exhaled air to the lower region and a conduit for withdrawing breathable air from the upper region. The device also has a baffle mounted therein for entrapping exhaled air in the lower region and for causing the exhaled air to remain in a low turbulence mode, for promoting a separation of oxygen and carbon dioxide from the exhaust air by stratification and for causing carbon dioxide to accumulate in the lower region of the bag. Consequently, the breathable air rising from the lower region of the bag has a higher oxygen content. In another aspect of the invention, a method for separating carbon dioxide and oxygen by stratification from exhaled air is also described. | 05-13-2010 |
20100126509 | AIR RECYCLING DEVICE FOR AUXILIARY RESPIRATION APPARATUS - An air recycling device for auxiliary respiration apparatus has a casing, an air gather assembly, a valve assembly and a pressure switch unit. The casing has a regulator connector and an air feeder. The air gather assembly communicates with the casing. The valve assembly selectively blocks the communication either between the air feeder and the air gather assembly or between the regulator connector and the air feeder. In the moment between inhaling and exhaling, the pressure switch unit drives the valve assembly to block the communication between the air feeder and the regulator connector to gather the air expired from the user into the air gather assembly. When the user inhales again, the user inhales the air in the air gather assembly. The subsequently expired air flows through the regulator connector to a diving regulator. The air expired by the diver is recycled. | 05-27-2010 |
20100170514 | AIR FILTER FOR A MASK ASSEMBLY - The present invention provides a gas-delivery system for delivering breathable gas to a subject, comprising a source of pressurised gas, a mask cushion, a means for positioning the mask cushion for delivery of gas, and a filter for filtering particles from exhaled air. Preferably, the filter filters exhaled air only. The filter may engage a mask frame on any suitable surface of the frame in relation to the mask cushion. | 07-08-2010 |
20100199991 | VENTILATORY SUPPORT AND RESUSCITATION DEVICE AND ASSOCIATED METHOD - A ventilatory support and resuscitation device for providing short-term ventilatory support, as well as constant flow, pressure cycled ventilatory support for breathing and non-breathing patients is disclosed. The device includes a chamber and at least one port in flow communication with the chamber. The apparatus also includes a flexible diaphragm member positioned within the chamber and configured to seal the port from flow communication with the chamber while seated adjacent to the port, and to flex in response to pressure applied thereto so as to allow flow communication between the port and the chamber while the diaphragm is flexing. A flow restrictor in flow communication with the chamber may also be included. The device may be coupled to a patient adapter, whereby a manometer, entrainment unit, and safety pop-off and entrainment valve may be coupled thereto. | 08-12-2010 |
20100224193 | SELF-CONTAINED BREATHING SYSTEM - A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided. | 09-09-2010 |
20100242966 | CLOSED CIRCUIT REBREATHER - A closed circuit rebreather including a breathing hose assembly, head assembly and internal counterlung assembly having axial and radial gas flow passageways therethrough, wherein the assembly is housed within a tank and includes a scrubber substantially enclosed along its longitudinal length within a water impervious counterlung bladder, the scrubber including foraminous inner and outer tubes having a carbon dioxide absorbent material filling the space therebetween. | 09-30-2010 |
20100252045 | ADAPTER FOR CONNECTING PARTICULARLY A RESPIRATORY IMPLEMENT TO A TUBE - An adapter for connecting, in particular, respiratory implements such as tubes, tube extensions, filters, breather bags, or artificial noses to a tube having a particularly conically tapered connector. the adapter has a clamping section that may be fixed to the connector in a frictionally engaged manner. The clamping section of the adapter may be radially expanded from a first clamping position in which the inner diameter of the clamping section is less than the outer diameter of the connector into a second release position in which the inner diameter of the clamping section is greater than the outer diameter of the connector. | 10-07-2010 |
20100269828 | SYSTEM, METHOD AND APPARATUS FOR REMOVAL OF VOLATILE ANESTHETICS FOR MALIGNANT HYPERTHERMIA - Systems, methods, and apparatus for removing volatile anesthetics from an anesthesia or ventilation system to minimize the effects of malignant hyperthermia in susceptible patients. According to one aspect of the present invention, a system for removing volatile anesthetics is provided. A first filter component placed in fluid communication with an inspiratory limb of an anesthesia or ventilation system such that volatile anesthetics will pass through the first filter component during operation of the anesthesia or ventilation system. A second filter component is operably coupled to the expiration port of the anesthesia or ventilation system such that gases passing through the expiratory limb of the anesthesia or ventilation system pass through the second filter component. The first filter component and second filter component are adapted to effectively remove volatile anesthetics passing through the respective filters. | 10-28-2010 |
20100282260 | Respirator assembly - A respirator assembly is composed of a respirator, an air purifier, and a connection tube. The respirator includes a first housing having an inflow unit and an air intake. A first pumping unit is located in the first housing for sucking the air through the inflow unit and exhausting the air through the air outtake. The air purifier includes a second housing having an air intake and an outflow unit. A second pumping unit is located in the second housing for sucking the air through the air intake and exhausting the air through the outflow unit. The outflow unit includes a natural-air outlet and a respirator outlet. The connection tube includes two ends, one of which is connected with the respirator outlet and the other is connected with the inflow unit. Accordingly, the respirator assembly can reduce the frequency of replacing the respiratory screen and enhance the quality of filtering the air. | 11-11-2010 |
20100319699 | FILTER - An air filter ( | 12-23-2010 |
20110083670 | BREATHING APPARATUS AND ASSOCIATED METHODS OF USE - A breathing apparatus including a mask body adapted to sealingly cover at least a portion of a face of an individual, a securement member for operatively associating the mask body with the face of the individual, at least one inlet port providing communication of fluids into mask body, and at least one valve providing a uni-directional path for the communication of fluids through the mask body. | 04-14-2011 |
20110126836 | Exhalation Valve Assembly With Selectable Contagious/Non-Contagious Latch - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
20110126837 | Exhalation Valve Assembly With Integrated Filter - An exhalation valve assembly that controls the pressure of exhaled gas in a ventilation system is described. The exhalation valve assembly includes an actuator module that may be fixed to the ventilation system and a valve module, removable for cleaning or disposal, through which the exhaled gas flows and that controls the pressure and release of the exhaled gas to the environment. Other components may also be incorporated into the assembly including a filter module, a flow meter and a condensate trap. | 06-02-2011 |
20110197890 | AMBULATORY OXYGEN CONCENTRATOR - An oxygen concentrator provides ambulatory oxygen utilizing a vacuum swing adsorption (VSA) oxygen separator powered by a power pack. The separator has a plurality of nitrogen-selective adsorbent beds, each operating in VSA cycles including feed, evacuation and repressurization phases. The concentrator also contains a delivery system for receiving oxygen produced by the VSA separator. | 08-18-2011 |
20110226250 | SEAL FOR VARIABLE COMPRESSION INTERFACES - The disclosure is directed to an example of a device configured to be in fluid communication with an article. The device includes an element configured to contact the article to form a variable compression interface between the element and the article. The device also includes a seal disposed on the element and at the variable compression interface. The seal is configured to reduce an amount of unwanted fluid leakage at the variable compression interface. An example seal includes a filter media configured to trap unwanted particles attempting to pass through the variable compression interface. In one example, the variable compression interface can be included within a heat and moisture exchange (HME) unit. | 09-22-2011 |
20110240026 | RADIAL BLOWER WITH SHAPED SCROLL PROFILE - A powered air purifying respirator (PAPR) includes a radial blower. The radial blower includes at least an impeller and a scroll having an upper outer surface and a lower outer surface. In one embodiment, a cross section of an air passageway of the scroll includes sides corresponding to the upper outer surface and the lower outer surface, the sides having parallel slanted segments. In another embodiment, the sides may be substantially parallel and may be curved. In yet another embodiment an upper outer surface of the scroll is concave and a lower outer surface of the scroll is convex. In that embodiment, the PAPR further includes an inlet, and the inlet is disposed at the lower outer surface. | 10-06-2011 |
20110240027 | SHAPED LAYERED PARTICLE-CONTAINING NONWOVEN WEB - A filter element includes a porous non-woven web. The porous non-woven web includes a first layer with first thermoplastic elastomeric polymer fibers and first active particles disposed therein and a second layer including second thermoplastic elastomeric polymer fibers and second active particles disposed therein. The web possesses a three-dimensional deformation and the first layer is contiguous with the second layer across the deformation. | 10-06-2011 |
20110259334 | INLET AIRFLOW ASSEMBLY IN A MEDICAL VENTILATOR - A ventilator that is small, lightweight, and portable, yet capable of being quickly adapted to operate in a plurality of different modes and configurations to deliver a variety of therapies to a patent. A porting system having a plurality of sensors structured to monitor a number of parameters with respect to the flow of gas, and a number of porting blocks is used to reconfigure the ventilator so that it operates as a single-limb or dual limb ventilator. In the single-limb configuration, an active or passive exhaust assembly can be provided proximate to the patient. The ventilator is capable of operate in a volume or pressure support mode, even in a single-limb configuration. In addition, a power control mechanism controls the supply of power to the ventilator from an AC power source, a lead acid battery, an internal rechargeable battery pack, and a detachable battery pack. | 10-27-2011 |
20110308524 | COMPACT MULTIGAS FILTER - A filter assembly includes a filter bed comprising at least one chemical filtering medium and a pleated filter element. The pleated filter element includes a particulate filtering medium and at least one chemical filtering medium. In one implementation, the pleated element includes a non-woven web of polymeric fibers and more than 60 percent weight sorbent particles enmeshed in the web. At least one chemical filtering medium in the pleated element and at least one chemical filtering medium of the filter bed can be designed to be capable of targeting different chemical substances. Some filter assemblies of the present disclosure may be disposed within an interior of a fluid-impermeable housing having an inlet and an outlet. | 12-22-2011 |
20110315142 | NECK-WORN AIR FILTRATION DEVICE - A neck-worn personal air filtration device for providing a zone of filtered air around or near a user's breathing zone is described. The device comprises a blower, a hose, and a neck-worn plenum including a filter. Air blown from the blower, passes through the hose and into the plenum exiting the plenum. The air is filtered by a filter for breathing by the user. | 12-29-2011 |
20120012111 | PEEP VALVE WITH FILTER - An application for a PEEP valve includes a filter media in the air flow between a patient interface and exit vent(s). The patient interface is connected to a patient airway system and the exit vents exhaust exhalation gasses into the atmosphere. The filter prevents or reduces the passage of microbes from the patient's exhalation gasses into the atmosphere. The PEEP valve provides positive gas pressure to a patient's lungs, requiring a predetermined exhalation gas pressure to be exceeded before releasing exhalation gasses into the atmosphere. | 01-19-2012 |
20120017907 | Modified Liquid Trap Cup and a Liquid Trap Assembly - A liquid trap cup is provided. The liquid trap cup comprises a hollow cup tube with a upper portion and a lower portion, a piston element with a top portion and a tail portion and a liquid discharge structure, in which the piston element is arranged airtight in the lower portion and is movable between a start point and an end point of the lower portion so as to control the opening and the closing of the liquid discharge structure. | 01-26-2012 |
20120017908 | DEVICE FOR SUPPLYING GAS TO A PATIENT - The invention relates to a device for supplying gas to a patient, in particular a patient breathing spontaneously. Said device comprises a) a metering device (A) which is used to meter the gas to be inhaled by the patient (P) into the gas tank (B), b) a gas tank (B) which is used to store the gas to be inhaled by the patient (P), c) a demand valve (D) which regulates the volume flow of the gas inhaled by the patient (P), d) a reservoir (F) which is used to hold the gas exhaled by the patient (P), e) a carbon dioxide separating unit (G) which is used to separate carbon dioxide from the exhaled gas, f) a pump (H) which is used to return the exhaled gas purified of carbon dioxide into the gas tank (B), and g) an analysis/control unit (J) which analyzes the gas returned to the gas tank (B) and controls the metering device (A) according to the composition of said gas. | 01-26-2012 |
20120024289 | HEADGEAR-MOUNTABLE RESPIRATOR - A headgear-mountable respirator ( | 02-02-2012 |
20120037160 | RESPIRATOR AND METHOD OF IDENTIFYING CLEANLINESS/TURBIDITY OF FILTER THEREOF - A respirator includes an external shell assembly, an internal shell assembly mounted inside the external shell assembly and communicating with outside of the external shell assembly through an intake passage, and a sound-absorbing member mounted inside the internal shell assembly and defining a channel therein. An air blower can be mounted inside the internal shell assembly for sucking the oxygen or air inputted externally into the internal shell assembly along the channel and then outputting it further to where it is required. The acoustic absorption of the sound-absorbing member and the covering of the internal and external shell assemblies can effectively lower the noise of the respirator, and the internal shell assembly can further focus the gas to enhance the efficiency of suction of the gas of the air blower and to reduce the heat generated by the air blower. | 02-16-2012 |
20120055481 | ANESTHESIA REVERSAL METHODS AND SYSTEMS - An apparatus for reversing inhaled anesthesia, which may be configured to be positioned along a breathing circuit or anesthesia delivery circuit, includes an anesthesia removal component and a blood flow acceleration component. The blood flow acceleration component facilitates an increase in the ventilation of the individual without resulting in a significant decrease in the individual's P | 03-08-2012 |
20120132207 | REBREATHER SETPOINT CONTROLLER AND DISPLAY - An oxygen setpoint controller (SPC) and a user's display for a rebreathing apparatus wherein the user exhales oxygen depleted breath into a closed rebreathing loop, the CO2 is scrubbed from the exhaled gases, oxygen is added to the rebreathing loop to maintain the oxygen at a specified partial pressure, and the oxygen enhanced gases in the rebreathing are provided to the user. The SPC is able to detect the failure of any of the oxygen sensors and provide an alarm condition to the user. The SPC further operates to provide dive data such as rate of ascent, time of dive, depth, and PPO2 to the uses, and to store and retain dive data for further review. The SPC further provides numerical dive data to a heads up display (HUD). The HUD further includes a tricolor LED displaying selected analog parameters. | 05-31-2012 |
20120138059 | SELF-CONTAINED BREATHING SYSTEM - A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided. | 06-07-2012 |
20120145155 | SOUND DAMPENING IN POSITIVE AIRWAY PRESSURE DEVICES - A CPAP system includes a PAP device ( | 06-14-2012 |
20120167886 | Advanced portable oxygen concentrator - A portable oxygen concentrator designed for medical use with a novel housing and internal component design that reduces noise and vibration while increasing durability. The improved design of the portable oxygen concentrator further facilitates easy maintenance and repair over the life of the equipment. | 07-05-2012 |
20120167887 | Advanced portable oxygen concentrator - A portable oxygen concentrator designed for medical use with a novel housing and internal component design that reduces noise and vibration while increasing durability. The improved design of the portable oxygen concentrator further facilitates easy maintenance and repair over the life of the equipment. | 07-05-2012 |
20120167888 | Advanced portable oxygen concentrator - A portable oxygen concentrator designed for medical use with a novel housing and internal component design that reduces noise and vibration while increasing durability. The improved design of the portable oxygen concentrator further facilitates easy maintenance and repair over the life of the equipment. | 07-05-2012 |
20120227741 | Therapeutic device - A therapeutic device for improving the respiration of a patient, the device comprising a curved or kinked pipe section, into the first end of which a mouthpiece provided with a passage is disposed, a holding peg inserted into a second end of the pipe section and connected thereto, the holding peg having a passage disposed therein and being insertable into the inside of the pipe section, and a flexible hose attached to the holding peg inside the pipe section, a free end of the hose moveable freely in an area of the mouthpiece between an inner wall of the pipe section, such that the therapeutic device can be used during inhalation and exhalation, the device ( | 09-13-2012 |
20120266883 | Gas concentrator with removable cartridge adsorbent beds - portable oxygen concentrator designed for medical use where the sieve beds, adsorbers, are designed to be replaced by a patient. The concentrator is designed so that the beds are at least partially exposed to the outside of the system and can be easily released by a simple user-friendly mechanism. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation. | 10-25-2012 |
20120285457 | NON-INVASIVE VENTILATION EXHAUST GAS VENTING - A non-invasive ventilation patient interface comprises a fresh gas entry port, an exhaust gas vent port, and a filter media disposed in the exhaust gas vent port. The fresh gas entry port is configured for coupling with a fresh gas supply. The exhaust gas vent port is configured for allowing expulsion of exhaust gas from the patient interface in response to exhalation of a patient. The filter media is configured for filtering contagious from the exhaust gas, diffusing the exhaust gas, and controlling an expulsion flow of the exhaust gas through the exhaust gas vent port. | 11-15-2012 |
20120285458 | WATER TRAPPING APPARATUS - A water trapping apparatus includes: a respiratory gas contacting portion that is disposed in a flow path through which a respiratory gas flows, and that is adapted to be in contact with the respiratory gas, the respiratory gas contacting portion that is comprised of a porous body; and an ambient-air contacting portion that is formed integrally with the respiratory gas contacting portion, and that is adapted to be in contact with ambient air, the ambient-air contacting portion that is comprised of the porous body. | 11-15-2012 |
20120285459 | AIR DISINFECTION AND CLEANING DEVICE, AND EXHALED GAS DISINFECTION AND CLEANING DEVICE, INTERIOR AIR DISINFECTION AND CLEANING DEVICE, AND SIMPLIFIED ISOLATION DEVICE USING THE SAME - An air disinfection and cleaning device is provided that includes: a cylindrical reflector having a cylindrical inner surface in which an air flows from an upper end to a lower end and the cylindrical inner surface is subjected to mirror finishing; a rod shaped ultraviolet lamp disposed at the center within the cylindrical reflector parallel to the long side; photocatalytic sheet filters being air permeable photocatalytic sheet filters having a diameter nearly equal to an inner diameter of the cylindrical reflector, provided respectively at one end and the other end in the cylindrical reflector, and being penetrated by the ultraviolet lamp at the center thereof; and a copper sheet filter being an air permeable photocatalytic sheet filter having a diameter nearly equal to an inner diameter of a cylinder member and closing a lower end opening of the cylindrical reflector. | 11-15-2012 |
20120325213 | System, Method and Apparatus for Removal of Volatile Anesthetics for Malignant Hyperthermia - Systems, methods, and apparatus for removing volatile anesthetics from an anesthesia or ventilation system to minimize the effects of malignant hyperthermia in susceptible patients. According to one aspect of the present invention, a system for removing volatile anesthetics is provided. A first filter component placed in fluid communication with an inspiratory limb of an anesthesia or ventilation system such that volatile anesthetics will pass through the first filter component during operation of the anesthesia or ventilation system. A second filter component is operably coupled to the expiration port of the anesthesia or ventilation system such that gases passing through the expiratory limb of the anesthesia or ventilation system pass through the second filter component. The first filter component and second filter component are adapted to effectively remove volatile anesthetics passing through the respective filters. | 12-27-2012 |
20130042870 | BREATHING GAS SUPPLY SYSTEM - A breathing gas supply system for an aircraft includes a plurality of oxygen concentrating apparatus, each of which in use, is operable to supply oxygen enriched gas to a breathing gas supply. Each oxygen concentrating apparatus includes at least two active molecular sieve beds which are operable so that whilst one sieve bed is adsorbing non-oxygen gas from a pressurized gas supply, the or another bed is being purged of non-oxygen gas by subjecting the bed to lower pressure. Each oxygen concentrating apparatus includes an oxygen enriched gas flow control device which permits the flow of oxygen enriched gas produced by the oxygen concentrating apparatus to the breathing gas supply and permits a restricted flow of oxygen enriched gas from the breathing gas supply to the oxygen concentrating apparatus. Oxygen enriched gas produced by the adsorbing sieve bed flows direct to the bed being purged. | 02-21-2013 |
20130056007 | SECRETION CLEARING VENTILATION CATHETER AND AIRWAY MANAGEMENT SYSTEM - A pulmonary secretion clearing ventilation catheter and related airway management system is disclosed. The ventilation catheter 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 patent 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. An improved inflatable cuff is also disclosed that permits a slight air leakage in the pneumatic seal between the patient's lungs and the environment, thereby facilitating removal of pulmonary secretions from the patient's lungs. | 03-07-2013 |
20130104900 | RESPIRATORS WITH A SACRIFICIAL CARTRIDGE FOR END OF SERVICE LIFE INDICATION | 05-02-2013 |
20130125893 | MULTIPLE-USE AIRWAY MASK - A flexible transparent multiple use face mask that encloses a user's face allowing the user's airway to be ventilated that includes a transparent flexible airway mask that encloses and ventilates a user's airway, an airway adaptor that directs a quantity of ventilation to the transparent flexible airway mask, a manual resuscitation bag valve that receives the airway adaptor and controls the quantity of ventilation directed to the transparent flexible airway mask and a manual resuscitation bag that produces the quantity of ventilation transmitted through the airway adaptor to the transparent flexible airway mask. The multiple-use airway mask can also be turned inside out and be used in combination with an endotracheal tube or a tracheotomy tube and also includes an attachment strap to prevent losing the transparent flexible airway mask as an added safety measure to keep the mask and bag connected. | 05-23-2013 |
20130139818 | SPLIT FLOW FILTERING DEVICE - A filtering device 10, 10′ that has a fluid inlet 12, a plenum 14, first and second filter layers 16 and 18, first and second fluid outlets 20 and 22, and a housing 24. The plenum 14 receives air that passes through the fluid inlet 12, and the first and second filter layers 16 and 18 are located on opposing sides of the plenum 14. The first and second fluid outlets 20 and 22 are located downstream to the first and second filter layers 16 and 18, respectively, on a side of each filter layer 16, 18 opposite the plenum 14. The housing 12 supports the first and second filter layers 16, 18 on opposing sides of the plenum 14. Very good distribution of fluid through the device 10 may be achieved because the plenum 14 and the filtering layers 16, 18 maintain their original relative positioning throughout use. Complex shapes can be produced, which enable the filtering device to accommodate devices of various configurations. Thicker filter media beds may be used on each side of the plenum to improve filtration performance and service life. | 06-06-2013 |
20130186402 | REBREATHER MOUTHPIECE - A mouthpiece for a rebreather has a tubular housing having opposed inhale and exhale ends, a mouth port, and a discharge port. Supported for movement within a bore of the housing is a valve assembly which is magnetically biased toward a valve-closed position preventing air in an air space of the bore from moving to the exhale end and the discharge port. As a diver exhales into the mouth port, the increase in air pressure of the air space causes the valve assembly to assume a valve-open position, exposing a transverse channel extending between the air space and the discharge port, and a recirculation air channel extending between the air space and the exhale end. A portion of the exhaled air is exhausted to the ambient environment through the discharge port, while the remainder exits the mouthpiece at the exhale end for recirculation through the rebreather. | 07-25-2013 |
20130206145 | RESPIRATION SYSTEM AND CONNECTOR SYSTEM THEREFOR FOR REDUCING CONTAMINATIONS - A respiration system with a respirator ( | 08-15-2013 |
20130228183 | SUPPLIED AIR RESPIRATOR THAT HAS AN ADJUSTABLE LENGTH HOSE - A supplied air respirator ( | 09-05-2013 |
20130255688 | REGENERATIVE CARTRIDGE OF A REBREATHER - A regenerative cartridge of a rebreather for isolating self-rescuers with chemically-bonded oxygen. The cartridge includes: a hermetic housing; a perforated shell arranged in the housing with an annular gap between the shell and the side wall of the housing and made with a central channel having perforated walls; a regenerative product arranged in the perforated shell; a heat-gas distributor arranged in the bulk of the regenerative product. The heat-gas distributor is made in the form of perforated plates positioned in a radial arrangement in the bulk of the regenerative product. One of the lateral sides of each perforated plate is made with a longitudinal bend of L-shaped cross-section. The walls of the L-shaped bends of the neighboring perforated plates are successively connected between them to form a central channel confined by the shelves of the L-shaped bends. | 10-03-2013 |
20130284175 | ARRANGEMENT AND METHOD FOR GUIDING EXPIRED RESPIRATORY GAS FLOW THROUGH A HOUSING ASSEMBLY FOR REMOVING UNDESIRABLE RESPIRATORY GAS COMPONENT AND BREATHING CIRCUIT FOR VENTILATING LUNGS OF A SUBJECT - An arrangement and method for guiding expired gas flow in a breathing circuit through a housing assembly for removing an undesired gas component is disclosed herein, The housing assembly includes a first port and a second port, one of the ports receiving the flow and another discharging the flow. The arrangement includes a gas routing device in flow communication with the breathing circuit and the housing assembly. The routing device is provided with at least two different route options. According to a first option the gas is guided to the first port and through the housing assembly to the second port and to the gas routing device for guiding for the inspiration. According to a second option the gas is guided to the second port and through the housing assembly to the first port and to the gas routing device for guiding for the inspiration. | 10-31-2013 |
20130312755 | SUCTION DEVICE HAVING A ROTARY SWITCH - A suction device having a rotary switch is provided. A main body of the suction device is provided with a patient-end connector, an oxygen supply connector, a suction connector, a cleaning connector and a connecting portion. The rotary switch is assembled with the connecting portion and can be switched between a first position and a second position. The rotary switch is provided with two opposite suction holes. When the rotary switch is located in the first position, the two suction holes are aligned with the patient-end connector and the suction connector to thereby communicate the patient-end connector with the suction connector. When the rotary switch is located in the second position, the communication between the patient-end connector and the suction connector is shut off. | 11-28-2013 |
20130312756 | AIRTIGHT SUCTION DEVICE AND AIR SUPPLY ASSEMBLY THEREOF - An air supply assembly of an airtight suction device includes: a tubular body, an oxygen supply manifold in communication with the tubular body; a scraper fixed in the tubular body; and an air supply unit provided in the tubular body and located between the oxygen supply manifold and the scraper. An airtight suction device can further includes a tubular body, an oxygen supply manifold, a first scraper, a second scraper, and an air supply unit. | 11-28-2013 |
20140041663 | MULTIPLE STAGE BLOWERS AND VOLUTES THEREFOR - A multiple stage variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the multiple stage blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise. | 02-13-2014 |
20140116444 | DEVICES FOR REMOVAL OF DIMETHYL SULFOXIDE (DMSO) OR RELATED COMPOUNDS OR ASSOCIATED ODORS AND METHODS OF USING SAME - Several embodiments of the invention relate to devices for the removal of dimethyl sulfoxide (DMSO) or related compounds, or odors associated with DMSO or DMSO-related compounds. Several embodiments relate to methods of using the same. In several embodiments the devices include adsorbents, odor adsorbing fabrics, masks, clean air members and clean air supply assemblies. | 05-01-2014 |
20140150794 | FLUID TRAP APPARATUS - A fluid trap is disclosed herein. The fluid trap has a tube connector defining a first interior passageway and a second interior passageway. The tube connector is adapted for connection with a dual lumen tube such that the first interior passageway is in fluid communication with one of the dual lumen and the second interior passageway is in fluid communication with the other of the dual lumen. The fluid trap also includes a reservoir operatively connected to the tube connector. The reservoir is in fluid communication with only one of the interior passageways, and is configured to retain fluid from that passageway. | 06-05-2014 |
20140182590 | VENTILATOR PRESSURE OSCILLATION FILTER - A ventilation air pressure oscillation mitigation device for a ventilator includes a housing defining an inlet and an outlet. The device includes a valve seat defining a primary opening and a plurality of secondary openings. A valve body is selectively positionable in a first position and a second position within the device. In the first position, substantially all of a first flow of ventilation air from the inlet to the outlet passes through the primary opening. When the valve body is in the second position, all of a second flow of ventilation air from the inlet to the outlet passes through the plurality of secondary openings. An actuator controls a position of the valve body. | 07-03-2014 |
20140190483 | Self-Contained Integrated Emergency Life-Support Device And System - A self-contained respiratory protection system is disclosed. The system includes a center module attachable to one or more cylinders of air, gas or oxygen. A plurality of filters is mountable on the center module. A blower motor also may be mounted on the center module. A hose attaches to a cylinder to provide air to an operator or draws filtered air via the filters on the center module. A first stage regulator converts the air in the cylinder to breathable air for the operator. A second stage regulator transitions between filter mode and supplied air. The system may fit within a backpack. | 07-10-2014 |
20140251333 | EXHALATION SCAVENGING THERAPY MASK - A respiratory mask for a medical patient including a shell and a flow coupling is disclosed. The shell includes an upper portion configured to cover a nose of the patient and a lower portion configured to cover a mouth of the patient, where an internal surface of the shell defines an interior volume of the respiratory mask. The flow coupling includes a body, a supply flow passage extending through the flow coupling, a scavenging flow passage extending through the flow coupling, and a septum within the body that separates the supply flow passage from the scavenging flow passage. The supply flow passage and the scavenging flow passage are fluidly coupled to an aperture that extends through the upper portion of the shell, and an aperture extending through the lower portion of the shell, respectively. | 09-11-2014 |
20140261428 | Respiratory Filter Device - Provided is a respiratory filter device having a filter module, a connection curved holder, an adjustable curved holder, and a mask. The filter module has a housing body, and both the connection curved holder and the adjustable curved holder have a respective free end and a respective connection end opposite to each other. The connection ends of the connection curved holder and the adjustable curved holder are connected with the filter module, and the free ends face to each other and form an opening between the free ends. The filter module is connected to the connection curved holder and the adjustable curved holder to define an accommodation space adjacent to the opening. Accordingly, the respiratory filter device can be worn on a user's head or neck directly by the accommodation space, for allowing the user to do other work when wearing the respiratory filter device. | 09-18-2014 |
20140332004 | PORTABLE INTAKE AIR STERILIZING APPARATUS - A portable intake air sterilizing apparatus is disclosed, which allows prevention of a worker's infection with virus/bacteria and which can allow, at the same time, the worker to work comfortably. The apparatus includes a cover member C for covering one or both of the nose and the mouth, an air intake portion K for the inner space of the cover member C, and a chlorine dioxide slow-release portion J capable of releasing chlorine dioxide gas into an intake air in association with introduction of this intake air from the air intake portion K. | 11-13-2014 |
20150314144 | RESPIRATOR - A breathing apparatus ( | 11-05-2015 |
20150336718 | PREFILTER COVER FOR BIDIRECTIONAL-AIRFLOW RESPIRATOR CARTRIDGE - A prefilter cover for a bidirectional-airflow respirator cartridge, the prefilter cover including front and rear clamshell portions that are flexibly connected by a flexible connecting member. | 11-26-2015 |
20160001111 | Reconfigurable Full Facemask having a Cartridge Module for Respiratory Protection - Full facemask including a face seal configured to directly engage a face of an individual. The face seal defines a lens opening. The full facemask also includes a mask lens that is coupled to the face seal and disposed within the lens opening. The mask lens has a passage edge that defines a cartridge passage through the mask lens. The full facemask also includes a cartridge module having at least one of a filter or an air regulator. The cartridge module is disposed within the cartridge passage and circumscribed by the passage edge of the mask lens. The full facemask also includes a locking member that includes a first member surface that directly engages the mask lens and a second member surface that directly engages the cartridge module. The locking member secures the mask lens and the cartridge module in fixed positions with respect to each other. | 01-07-2016 |
20160015916 | POSITIVE AIRWAY PRESSURE SYSTEMS - Described here are positive airway pressure (PAP) systems and methods of using the same. The systems may comprise an air delivery matrix configured to deliver air from a chassis or housing and a user interface such as a mask. The systems may be wearable on a head of a patient, and in some instances may include an air bladder positioned between the chassis or housing and the head of the patient. | 01-21-2016 |
20160016020 | REBREATHER SYSTEM AND COMPONENTS - Rebreather, with a multifunctional mouthpiece with a closed circuit mode, an open circuit mode, an automatic diluent valve with an increased cracking pressure, an overpressure valve where by turning a barrel the modes can be selected and the automatic diluents valve and the overpressure valve get activated synchronously. Further said rebreather having a single piece counterlung, in which a CO | 01-21-2016 |
20160038709 | OXYGEN FACE MASK AND COMPONENT SYSTEM - An oxygen face mask and component system is provided, the mask is designed to cover a user's nose and at least partially cover a user's mouth, the mask having lateral ports. Systems and assemblies including such a face mask and additional components are further provided, including a colorimetric CO | 02-11-2016 |
20160114121 | FLOW DIFFUSER AND SOUND CONE - 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. | 04-28-2016 |
20180021605 | COAL MINER PERSONAL AIR FILTRATION SYSTEM SPECIALLY ADAPTED FOR LOW CEILING MINES | 01-25-2018 |