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| Number | Title | Issue Date |
| 7870859 | Patient contacting seal and mask using same A seal and a respiraoty mask having a seal adapted for confronting engagement with a surface of a user to form an interface therewith. The seal includes a first portion defined by a gel substance. In one embodiment, the seal includes a selectively formable substance... | 01/18/2011 |
| 7331344 | Breathing device A breathing device for assisting patients to breath by maintaining positive airway pressure during the breathing cycle comprises a breathing channel in fluid communication with an exhaust channel extending from a junction therebetween. A gas inlet is arranged so as ... | 02/19/2008 |
| 7328703 | Oxygen delivery cannula system that improves the effectiveness of alveolar oxygenation The pulmonary oxygen flow control system delivers oxygen from a source of pressure to a nasal cannula worn by the patient. Between the source and the nasal cannula is a pendant flow structure which includes an orifice followed by a gas dynamic valve. When the downst... | 02/12/2008 |
| 7263995 | Hyperbaric oxygen therapy system controls A hyperbaric oxygen therapy system includes a pressure vessel containing a gas, an oxygen concentration measurement apparatus for monitoring the concentration of oxygen in the gas, an environmental control apparatus for controlling the temperature of the gas in the ... | 09/04/2007 |
| 7246618 | 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 vent... | 07/24/2007 |
| 7234489 | Valve with vortex chamber and a mechanical member to shut off flow A valve assembly (10) comprises a vortex chamber (14) with an axial outlet port (20), a main inlet port (16) for a fluid to be controlled, and a substantially tangential inlet port (25); the fluid enters through an inlet chamber ( | 06/26/2007 |
| 7210479 | Hyperoxic breathing system A controlled enhanced-oxygen (hyperoxic) breathing system involving an oxygen source, a control valve system and a breathing interface, is disclosed. The control valve system may include a demand flow valve and a venturi valve arranged to introduce ambient air into ... | 05/01/2007 |
| 7191780 | Continuous high-frequency oscillation breathing treatment apparatus A continuous high-frequency oscillation breathing device delivers therapy during both inhalation and exhalation in order to assist in clearings secretions the lungs. A fixed shrouded-venturi patient interface circuit is combined with medicated aerosol to deliver con... | 03/20/2007 |
| 7156095 | Hybrid microprocessor controlled ventilator unit A method and apparatus for operating a ventilator in a primary electronic mode or in a back-up pneumatic mode during primary electronic mode failure. A method and apparatus for operating a ventilator in an advanced mode, having a number of ventilatory modes, or in a... | 01/02/2007 |
| 7134434 | Pressure support system and method and a pressure control valve for use in such a system and method A pressure support system having enhanced noise reduction and a valve assembly for use in pressure support system. The pressure support system includes a pressure generator having an inlet and an outlet. A first conduit defining a tortuous path is coupled between a ... | 11/14/2006 |
| 7089938 | Pneumatic oxygen conserving device A pneumatic oxygen conserving device uses a portion of gas exiting its main valve to interrupt delivery of the gas. Gas is dispensed upon inhalation and is interrupted by means of suitable pneumatic connections between the device's delivery system and its sensing sy... | 08/15/2006 |
| 7089939 | Gas delivery connection assembly An anti-asphyxia valve is adapted to, in use, be disposed between a patient and structure to deliver a breathable gas to the patient. The valve includes a housing having an interior, at least one port to provide fluid communication between the housing interior and a... | 08/15/2006 |
| 7080645 | Anti-snoring device, method for reducing snoring, and a nasal air cannula The application relates to an anti-snoring device comprising a compressor and a nasal air cannula, the air compressed by the compressor being blown through the nasal air cannula into the nose of a sleeping person. The invention also relates to an optimized nasal air... | 07/25/2006 |
| 7077154 | Apparatus for controlling the pressure of gas by bubbling through a liquid, such as bubble CPAP Apparatus for effecting bubble CPAP. The apparatus includes a hollow vessel holding a liquid, a cap, and a positionable tube assembly. The positionable tube assembly comprises a guide tube and a positionable tube. The positionable tube is arranged to have a gas intr... | 07/18/2006 |
| 7077133 | Oxygen enriching apparatus, controller, and recording medium A small oxygen enriching apparatus which can supply oxygen-enriched gas at high flow rate without imparting unnatural sensation to a user, as well as a controller and recording medium therefore. In step 100, a judgment is made as to whether a flow rate set by... | 07/18/2006 |
| 7066180 | Method and system for measuring airflow of nares A method and system for measuring airflow through nares. One exemplary embodiment comprises: measuring an attribute of an airflow through a first naris; measuring an attribute of an airflow through a second naris; wherein measuring the attribute of the airflow throu... | 06/27/2006 |
| 7047974 | Nasal cannula A nasal cannula for delivering air to a patient's nares. Two delivery tubes are provided to supply air to a pair of nasal inserts each of which conform to the shape of the nare. Properly placed bleed ports reduce noise and reduce carbon dioxide retained in the syste... | 05/23/2006 |
| 7022087 | Air circulation apparatus and methods for plethysmographic measurement chambers Apparatus and methods relating to circulation of air within a plethysmographic measurement chamber are provided. An air circulation system, comprised of one or more pumps, is coupled to a plethysmographic measurement chamber using one or more inlet and exhaust tubes... | 04/04/2006 |
| 7011101 | Valve system A valve system (10) controls the fluid flow between an inlet (12) and an outlet (14). The system (10) splits the flow into two parallel flow ducts (15, 16) and recombines the flows through opposed tangential inlets (18) and ... | 03/14/2006 |
| 7007691 | Apparatus and method for humidification of inspired gases An apparatus and method for humidification of inspired gases, wherein the present invention utilizes moisture from condensed expiratory gases deposited within the outer expiratory tube of a conventional unilimb breathing circuit to humidify oxygen gas (or any other ... | 03/07/2006 |
| 7007692 | Method and system of sensing airflow and delivering therapeutic gas to a patient Methods and related systems for individually sensing airflow in the breathing orifices of a patient, and preferentially delivering therapeutic gas to those breathing orifices based on the amount of airflow sensed. ... | 03/07/2006 |
| 7000613 | Nasal interface and system including ventilation insert A ventilation or CPAP interface system adapted to be inserted into a nares of a user to secure the interface. A cannula adapted to be connected to a source of ventilation gas forms a first portion of an input gas flow passage to supply the ventilation gas to the use... | 02/21/2006 |
| 6997187 | Nasal interface and system including ventilation insert A ventilation or CPAP interface system adapted to be inserted into a nares of a user to secure the interface. A cannula adapted to be connected to a source of ventilation gas forms a first portion of an input gas flow passage to supply the ventilation gas to the use... | 02/14/2006 |
| 6995665 | System and method for identifying, monitoring and evaluating equipment, environmental and physiological conditions A system and method are disclosed for identifying monitoring and evaluating hazardous or potentially hazardous conditions. The system may be worn by safety personnel to detect equipment conditions such as low power supply, environmental conditions such as ambient te... | 02/07/2006 |
| 6929007 | Insufflation-exsufflation system with percussive assist for removal of broncho-pulmonary secretions An improved insufflation-exsufflation system with percussive assist for removal of broncho-pulmonary secretions includes a conduit for connection to a patient's airway; a pressure source for providing to the conduit alternating positive and negative pressure fluctua... | 08/16/2005 |
| 6921267 | Lung simulator for an integrated human patient simulator A simulated lung for use in real time simulated medical procedures comprising a positive pressure source of a gas, a vacuum pressure source, a fixed interior volume vessel having an inlet, an outlet, and a breath passage port, the inlet in communication with the pos... | 07/26/2005 |
| 6901962 | Surge prevention device A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves locat... | 06/07/2005 |
| 6880556 | Apparatus for supplying a therapeutic oxygen gas The apparatus includes a cylinder for containing a pressurized therapeutic oxygen gas, a nasal cannula, adapted to be introduced into a nasal passage of a patient, and a conduit extending between the cylinder and the nasal cannula for directing the therapeutic oxyge... | 04/19/2005 |
| 6814075 | Respiratory assistance device A respiratory assistance device may include a tube that forms a main channel for connecting a distal end of the tube to a respiratory airway of a patient, such that the main channel connects the respiratory system of the patient to the outside. The device may also i... | 11/09/2004 |
| 6634356 | Continuous positive airway pressure controller A CPAP controller that supplies oxygen enriched air to a respiratory circuit that utilizes a venturi-jet arrangement within a chamber, which enriches ambient air. Ambient air is drawn into the chamber by a primary oxygen flow source via an oxygen jet that... | 10/21/2003 |
| 6622743 | Surge prevention device A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure oxygen cylinder and a medical pressure regulator. The valve also may be used for other purpo... | 09/23/2003 |
| 6615831 | Pressure support system and method and a pressure control valve for use in such system and method A pressure support system having enhanced noise reduction and a valve assembly for use in pressure support system. The pressure support system includes a pressure generator having an inlet and an outlet. A first conduit defining a tortuous path is coupled... | 09/09/2003 |
| 6609518 | Breathing aid device An intermittent positive pressure breathing device for neonatal infants. The device is connected to a supply of pressurized oxygen supplied through a first conduit. The first conduit terminates in a venturi nozzle by which ambient air is entrained so that... | 08/26/2003 |
| 6526974 | Pressure control in CPAP treatment or assisted respiration The pressure of breathable gas exiting a flow generator is controlled by adjusting the efficiency of the flow generator. In one embodiment, a baffle plate of a control element can restrict the open entry area of a motor driven turbine of the flow generato... | 03/04/2003 |
| 6516801 | Device for respiratory assistance A device for respiratory assistance which comprises a tube (4) having at least one auxiliary channel (8) connected to a source of respirable gas (25). The conduit (28) connects the source of respirable gas (25) to the auxiliary channel (8). The device fur... | 02/11/2003 |
| 6470885 | Method and apparatus for providing and controlling oxygen supply A method and apparatus for controlling oxygen delivery to a person is disclosed. In one embodiment, the method includes receiving a goal blood-oxygen saturation level, measuring an actual saturation level of the person, determining a breath rate of the pe... | 10/29/2002 |
| 6443154 | Apparatus for the supply of a breathing gas An apparatus for supplying a breathing gas to a patient has a gas supply for generating a flow of breathable gas during an inspiration and an expiration phase of a patient breathing cycle. An inspiration line is provided having an inlet through which a fl... | 09/03/2002 |
| 6425396 | Sensing valve motion limiting mechanism for respiratory equipment Respiratory equipment coupled in interruptible fluid communication between a recipient and a source of pressurized respiratory gas and adapted for controlling delivery of the pressurized gas to the recipient as the recipient inhales and exhales. The equip... | 07/30/2002 |
| 6397844 | Respiration apparatus A portable apparatus for ventilation support to persons with respiratory distress is provided with a compressed air pump. The pump may be connected to the mouth or the nose via a tube for generation of pressure pulses with an individually adaptable air vo... | 06/04/2002 |
| 6378520 | Variable pressure and flow control for a pneumatically-operated gas demand apparatus Pneumatically operated gas demand equipment coupled in interruptible fluid communication between a recipient and a source of pressurized respiratory gas and adapted for controlling delivery of the pressurized gas to the recipient as the recipient inhales ... | 04/30/2002 |
