Valve, Or Valve Control, Structure Patents (Class 128/205.24)
  • Patent number: 10415564
    Abstract: A valve clack is provided. The valve clack includes: a mounting column (11) having a plurality of air slots (111) for dispersing an airflow at least in a top surface of the mounting column (11); a plurality of blades (12) arranged outside the mounting column (11) in a circumferential direction of the mounting column (11), each blade (12) having a radial inner end connected to the mounting column (11) and elastically swingable with respect to the mounting column (11).
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: September 17, 2019
    Assignee: XIAMEN KOGE MICRO TECH CO., LTD.
    Inventor: Kunlin Zhang
  • Patent number: 10406314
    Abstract: An exhalation valve, an inhalation valve, a ventilator and a method for controlling ventilation are provided. An exhalation valve (10) or inhalation valve (10) for a medical ventilator (30) for controlling a flow of a fluid, especially a breathing gas, has an inlet (12) and an outlet (14) for the fluid. Between the inlet (12) and the outlet (14), a valve seat crater (16) and a diaphragm (18) are provided. The diaphragm (18) is movable relative to the valve seat crater (16) for influencing the flow through the valve seat crater (16). The valve seat crater (16) and the diaphragm (18) are arranged such that the valve seat crater (16) can partially be sealed by means of the diaphragm (18), with the diaphragm (18) and the valve seat crater (16) not closing completely on initial contact of the diaphragm (18) and the valve seat crater (16).
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: September 10, 2019
    Assignee: Drägerwerk AG & Co. KGaA
    Inventors: Thorsten Dunkel, Andreas Junk
  • Patent number: 10335571
    Abstract: A breathable gas inlet control device permits flow regulation at the inlet of a flow generator for a respiratory treatment apparatus such as a ventilator or continuous positive airway pressure device. The device may implement a variable inlet aperture size based on flow conditions. In one embodiment, an inlet flow seal opens or closes the inlet to a blower in accordance with changes in pressure within a seal activation chamber near the seal. The seal may be formed by a flexible membrane. A controller selectively changes the pressure of the seal activation chamber by controlling a set of one or more flow control valves to selectively stop forward flow, prevent back flow or lock open the seal to permit either back flow or forward flow. The controller may set the flow control valves as a function of detected respiratory conditions based on data from pressure and/or flow sensors.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: July 2, 2019
    Assignee: ResMed Paris SAS
    Inventors: Philippe Auguste Chalvignac, Arthur Kin-Wai Yee, David Creusot, Enrico Brambilla
  • Patent number: 10322252
    Abstract: An ergonomic nasal cannula that maximizes comfort, decreases oxygen waste, and reduces nasal pain, bacterial growth, and infections includes a nasal cushion and an airflow structure. The airflow structure supports the nasal cushion and facilitates the flow of oxygen from a nasal cannula tubing to the airway of a user, via the nasal cushion. The nasal cushion is a soft, pliable structure that rests against the nasal cavity of the user, wherein a nasal opening allows for the flow of oxygen into the nasal cavity. An anti-pathogenic material, such as elemental silver, is impregnated into the nasal cushion in order to eliminate harmful pathogens and prevent infections. A two-way valve is integrated into an outer lateral wall of the airflow structure, allowing for the introduction of inspired oxygen and preventing the build-up of pressure.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: June 18, 2019
    Inventor: Darin B Atherton
  • Patent number: 10300226
    Abstract: A portable rescue inhaler having a first canister containing a gas mixture of helium, oxygen, and nitrogen, and having a second canister containing an aerosolized medicine. The gas mixture of helium, oxygen, and nitrogen contained in the first canister has a density slightly lower than the density of atmospheric air. The portable rescue inhaler is capable of delivering the lower density gas mixture simultaneously with the aerosolized medicine for emergency hand held rescue of patients suffering from asthma, asthmatic bronchitis, COPD, emphysema, cystic fibrosis, and myocardial insufficiency. The portable rescue inhaler is capable of providing a vaporized anesthetic for greater medical assistance for patients in need of anesthesia due to respiratory insufficiency. The portable rescue inhaler reduces intra-operative risks in respiratory patients prior to gaining access to a hospital or care center.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: May 28, 2019
    Inventor: Binyomin Cohen
  • Patent number: 10245399
    Abstract: 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.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: April 2, 2019
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.
    Inventors: Anatole D. Martin, Michael J. Banner, Andrea Gabrielli, Neil Russell Euliano, II
  • Patent number: 10220224
    Abstract: A configurable exhale system for a respirator has a first valve assembly disposed within a chamber which is configured to prevent air from flowing through the first valve assembly when an air pressure differential between an upstream side and a downstream side of the first valve assembly is below a first opening pressure. A second valve assembly is disposed within the chamber in fluid communication with the first valve assembly which is configured to prevent air from flowing through the second valve assembly when an air pressure differential between an upstream side and a downstream side of the second valve assembly is below a second opening pressure, which is greater than the first opening pressure. A bypass opening is positioned adjacent the second valve assembly configured to enable air to bypass the second valve assembly with a bypass member positioned adjacent to the bypass opening.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: March 5, 2019
    Assignee: Scott Health & Safety Limited
    Inventor: Graham Langford
  • Patent number: 10195382
    Abstract: An artificial respiration device for resuscitating a person in a state of cardiac arrest is provided that includes a tubular element, auxiliary channels continuously injecting jets of breathing gas, a deflection element that forces the jets of breathing gas to converge inside the tubular element, and a local restriction of the internal cross-section of the tubular element.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: February 5, 2019
    Inventor: Georges Boussignac
  • Patent number: 10118011
    Abstract: A portable mechanical ventilator having a Roots blower provides a desired gas flow and pressure to a patient circuit. The mechanical ventilator includes a flow meter operative to measure gas flow produced by the Roots blower and an exhalation control module configured to operate an exhalation valve connected to the patient circuit. A bias valve connected between the Roots blower and the patient circuit is specifically configured to generate a bias pressure relative to the patient circuit pressure at the exhalation control module. The bias valve attenuates pulsating gas flow produced by the Roots blower such that gas flowing to the mass flow meter exhibits a substantially constant pressure characteristic. The bias pressure facilitates closing of the exhalation valve at the start of inspiration, regulates positive end expiratory pressure during exhalation, and purges sense lines via a pressure transducer module.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 6, 2018
    Assignee: CareFusion 203, Inc.
    Inventors: Douglas F. DeVries, Todd W. Allum
  • Patent number: 10076616
    Abstract: A respiratory treatment device comprising at least one chamber, a chamber inlet configured to receive air into the at least one chamber, at least one chamber outlet configured to permit air to exit the at least one chamber, and a flow path defined between the chamber inlet and the at least one chamber outlet. A restrictor member positioned in the flow path is moveable between a closed position, where a flow of air along the flow path is restricted, and an open position, where the flow of air along the flow path is less restricted. A vane in fluid communication with the flow path is operatively connected to the restrictor member and is configured to reciprocate between a first position and a second position in response to the flow of air along the flow path.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: September 18, 2018
    Assignee: Trudell Medical International
    Inventors: Adam Meyer, Raphael Kopala, Chris Dobson, James Schmidt, Neritan Alizoti
  • Patent number: 9981096
    Abstract: 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 and/or inspiratory flow is unknown or indeterminable by the ventilator.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 29, 2018
    Assignee: Covidien LP
    Inventors: Gabriel Sanchez, Nancy F. Dong
  • Patent number: 9878121
    Abstract: In accordance with the present invention, there is provided a mask, such as a nasal pillows mask, for achieving positive pressure mechanical ventilation (inclusive of CPAP, ventilator support, critical care ventilation, emergency applications). 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 mask of the present invention further includes a heat and moisture exchange (HME) device which is directly integrated into the housing or cushion thereof (thus residing in extremely close proximity to the patient's nostrils), and is further uniquely configured to induce a flow pattern between it and the cushion which maximizes the transmission of heat and moisture to air which is inhaled by and exhaled from the patient through the mask.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 30, 2018
    Assignee: BREATHE TECHNOLOGIES, INC.
    Inventors: Enrico Brambilla, Samir S. Ahmad
  • Patent number: 9855395
    Abstract: Gas-pressure-based testing, in some embodiments, features a self-leak-testing module (120) that includes an internal sensor and is configured for measuring, using the sensor, gas leakage (179, 180) from a set of walls that defines respective gas passageways that both exist within the module and are incident to the gas pressure measured. One or more walls of the set may extend outside the module. The module can be configured for deciding, based on a result of the measuring, whether a magnitude of the leakage exceeds a predetermined threshold. A source for applying the pressure may be internal (138) or external (104, 132, 135). Gas pressure based pattern recognition can be used to identify, optionally during treatment and in real time, one or more leak sites responsible for the leakage. The module is implementable as a ventilation monitoring module that measures differential flow of a breathing circuit, the testing serving to prevent cross-contamination of patients.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: January 2, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Michael Brian Jaffe, Joseph Allen Orr
  • Patent number: 9833588
    Abstract: A tracheal tube includes an inner cannula and an outer cannula that are connected with a threaded connection able to swivel, and wherein the inner cannula is also connected to an elbow adaptor through a Bayonet Neill-Concelman (BNC) connection. Both the threaded and the BNC connects provide more secure connections of the corresponding components and are able to withstand greater amounts of force exerted on them without becoming detached from each other. The elbow adapter may further be coupled to a pressure release valve that will alleviate pressure buildup within the tracheal tube.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: December 5, 2017
    Assignee: Smart Bridge Medical, Inc.
    Inventors: Kay L. Fuller, Lisa M. Carver, Matthew T. Hill, Michael M. Hotta, Laura G. Kruger, Alexander C. Waselewski
  • Patent number: 9821136
    Abstract: A respiratory assistance device 10 includes: a mask 13 having an expiratory hole 13a; an expiratory valve 15 provided in the mask 13, for opening and closing the expiratory hole 13a; and a control unit 17 for performing overall control on the entire device. The mask 13 and the expiratory valve 15 together form an opening and closing device. The expiratory valve 15 is deformable by deformation of a piezo element 15a. The expiratory valve 15 is disposed on an inner surface 13f so that a deformation direction thereof, i.e., a thickness direction thereof, extends along the inner surface 13f of the mask 13 and a side surface 15m slides along the inner surface 13f by the deformation thereof.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: November 21, 2017
    Assignee: METRAN CO., LTD.
    Inventor: Kazufuku Nitta
  • Patent number: 9662469
    Abstract: A backspill prevention apparatus prevents water from a humidifier portion of a positive airway pressure (PAP) device from reaching a blower motor of a PAP device. The backspill prevention apparatus can include a variety of different devices, and is placed somewhere along an air passageway between a blower motor and a humidifier portion of a PAP device.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: May 30, 2017
    Assignee: RedMed Limited
    Inventors: Aleksandr Nagorny, David Sears
  • Patent number: 9534737
    Abstract: A fluid tank for a motor vehicle comprising a housing, wherein the housing has a housing base, a housing cover and at least one side wall. A through-passage is formed inside the side wall, wherein the through-passage extends from a first opening in the housing base in the direction of the housing cover. The through-passage is in fluidic connection with the interior of the fluid tank via a second opening.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: January 3, 2017
    Assignee: MAGNA POWERTRAIN AG & CO KG
    Inventor: Markus Ringstein
  • Patent number: 9492691
    Abstract: A directional valve for a respirator product includes a valve housing (15) and a valve seat (1) for receiving a flexible valve membrane (16). The valve seat has a circular and essentially flat sealing surface (2) surrounding an opening (3), which is sealingly covered by the valve membrane during an inspiration phase. A fixing lug (13), on the valve housing (15), fixes the valve membrane in the valve seat and is arranged offset in relation to the center of the valve membrane, such that an entire circumferential surface of the valve membrane is lifted off from the sealing surface during an expiration phase. The fixing lug is directed essentially at right angles to a flow plane formed by the opening. A counter-support (25), within the opening, is arranged opposite the fixing lug such that the valve membrane is mounted with fixed clamping action, between the fixing lug and the counter-support.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: November 15, 2016
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Michael Rosert, Dennis Leske, Harald Heyer, Thomas Pancur
  • Patent number: 9486602
    Abstract: 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.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 8, 2016
    Assignee: Breathe Technologies, Inc.
    Inventors: Todd Allum, Joseph Cipollone
  • Patent number: 9452275
    Abstract: A relief valve assembly for use with a ventilator to selectively release pressure from within a breathing tube. The relief valve assembly can be attached and removed from the ventilator as a single unit. The relief valve assembly includes a sealing member that is movable by operating components within the ventilator to either seal or open at least one relief port contained within the relief valve assembly.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 27, 2016
    Assignee: General Electric Company
    Inventor: Doron Lindner
  • Patent number: 9427522
    Abstract: A system for the effective, reliable and foolproof delivery of controlled amounts of a medical fluid to a patient is provided. The system includes an integrated compressed gas unit having an inlet port to which at least one compressed gas cylinder is selectively connected and an outlet port in communication with the inlet port. The integrated compressed gas unit also includes a regulator valve assembly positioned between the outlet port and the inlet port, wherein the regulator valve assembly includes a press button actuator and regulator adjustment dial. The system also includes a flow control system delivering the fluid in precisely controlled amounts.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: August 30, 2016
    Inventors: Frank Levy, Kimberley Levy
  • Patent number: 9421338
    Abstract: A ventilator including a pneumatic system for providing and receiving breathing gas, and a controller operatively coupled with the pneumatic system. The controller is operable to control circulation by the pneumatic system of breathing gas to and from a patient, and to adjust at least one of a volume and pressure of breathing gas delivered to the patient, such adjustment being based upon elastic properties of a component used to fluidly couple the pneumatic system to a patient.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: August 23, 2016
    Assignee: Covidien LP
    Inventors: Mehdi M. Jafari, Rhomere S. Jimenez, Edward R. McCoy, Jeffrey K. Aviano
  • Patent number: 9364620
    Abstract: Devices for intranasally delivering therapeutic gases to a patient. The devices may include a measurement chamber, a combination pressure regulators and a sequencing mechanism that controls valves associated with the pressure regulators. When implemented in a hand-held dispenser, the hand-held dispenser may reliably deliver consistent doses of gas regardless of the unknown state and pressure of the therapeutic gas in the measurement chamber.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: June 14, 2016
    Assignee: Capnia, Inc.
    Inventor: Troy A. Carter
  • Patent number: 9366350
    Abstract: A gas cylinder is provided with a pressure regulator including a valve body including an upper first chamber, intermediate second and third chambers, a lower channel threadedly secured to and communicating with a container body, a passageway having one end communicating with the container body, a lower through hole communicating with the intermediate third chamber and the channel, and an internally threaded top neck; a high-pressure safety valve; a low-pressure safety valve; a coupler on the valve body; a moveable member on a bottom of the intermediate third chamber; a spring biased hollow member in the intermediate second chamber and having a bottom engaged the moveable member; an externally threaded stem in the upper first chamber and complimentarily disposed on the hollow member; a hollow cap threadedly secured to the stem and the neck respectively; and a knob mounted on the stem.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: June 14, 2016
    Inventors: Wen-Hung Li, Chung Wei Huang
  • Patent number: 9358354
    Abstract: An airway device (14), that is used to maintain a clear airway in a patient, e.g. for artificial ventilation during surgery, comprises an inflatable cuff (26), which is inflated when in position in a patient's airway (24). The inflated cuff (26) provides a seal to maintain the device (14) in position in a patient's airway (24), and to prevent leakage of infected oropharangeal secretions into the patient's lungs. A method and apparatus (10) for monitoring and controlling the pressure in the inflatable cuff (26) is described, which, in one embodiment, controls the pressure about a setpoint pressure, whilst preventing loss of sealing pressure during a patient's respiratory cycle. In other embodiments, the method and apparatus monitors for: leaks in the pressure system of the device (14) that includes the cuff (26); blockage in the pressure system, and/or malpositioning of the airway device (14) during use.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: June 7, 2016
    Assignee: Indian Ocean Medical, Inc.
    Inventors: Peter Young, Mario Zocca
  • Patent number: 9352111
    Abstract: A system includes a guidance device that provides feedback to a user to compress a patient's chest at a rate of between about 90 and 110 compressions per minute and at a depth of between about 4.5 centimeters to about 6 centimeters. The system includes a pressure regulation system having a pressure-responsive valve that is configured to be coupled to a patient's airway. The pressure-responsive valve is configured to remain closed during successive chest compressions in order to permit removal at least about 200 ml from the lungs in order to lower intracranial pressure to improve survival with favorable neurological function. The pressure-responsive valve is configured to remain closed until the negative pressure within the patient's airway reaches about ?7 cm H2O, at which time the pressure-responsive valve is configured to open to provide respiratory gases to flow to the lungs through the pressure-responsive valve.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 31, 2016
    Assignee: ADVANCED CIRCULATORY SYSTEMS, INC.
    Inventors: Keith G. Lurie, Anja Metzger
  • Patent number: 9341534
    Abstract: This disclosure provides example methods, devices and systems associated with filter structures employed with sensors. In one embodiment, a method comprises receiving, at a first filter having a plurality of pores, a pressure, wherein the pressure includes a static pressure component and a dynamic pressure component; filtering, by the first filter, at least a portion of the dynamic pressure component of the pressure; outputting, from the first filter, a filtered pressure; and wherein the filtered pressure is used to determine the dynamic pressure component.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: May 17, 2016
    Assignee: Kulite Semiconductor Products, Inc.
    Inventors: Anthony D. Kurtz, Boaz Kochman, Adam Hurst, Tonghuo Shang
  • Patent number: 9289573
    Abstract: 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.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: March 22, 2016
    Assignee: Covidien LP
    Inventors: Clayton R. Platt, Fang Zheng, Rick Crawford
  • Patent number: 9242066
    Abstract: 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.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: January 26, 2016
    Assignee: New York University
    Inventor: David M. Rapoport
  • Patent number: 9239250
    Abstract: A safety pin system for a product is provided and includes a safety pin disposable in a receiving element to disable the product, an obstruction disposable in a blocking position of a product disability indicator and a streamer configured to pass through an opening associated with the product and attached at opposite ends thereof to the safety pin and the obstruction. The opening and the obstruction are sized such that, when the obstruction is disposed in the blocking position with the streamer passed through the opening and the safety pin disposed in the receiving element, the obstruction is irremovable from the blocking position until the safety pin is removed from the receiving element.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: January 19, 2016
    Assignee: GOODRICH CORPORATION
    Inventors: Helperus Ritzema Rautenbach, Nick Ruegsegger
  • Patent number: 9205210
    Abstract: 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.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: December 8, 2015
    Assignee: ResMed Limited
    Inventor: David John Bassin
  • Patent number: 9155853
    Abstract: The systems and methods of the present application provides a graphical user interface (GUI) for adjusting the modes and settings of a patient ventilator. Upon selecting the type of breath setting (mechanical and/or pressure supported), and the target and control parameters for each breath setting, an ideal set of pressure, flow and volume waveforms are displayed on a touch-screen GUI. The user is then able to adjust any of the waveforms using the touch-screen GUI to the desired ventilator settings for that particular patient. The user then confirms the settings and the ventilator operates according to the user-set waveforms.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 13, 2015
    Assignee: General Electric Company
    Inventor: Timothy Michael Knor
  • Patent number: 9133955
    Abstract: A flow control proportional valve comprises a valve body and a valve core disposed below the valve body, a valve cover plate is disposed at an upper end of the valve core, the bottom of the valve cover plate is connected to an upper end of a connection rod, a coil rack fixedly mounted at a lower end of the connection rod is wound by an enameled wire which is connected to a power supply unit, a magnetic core and a magnetic ring are disposed under the coil rack, the magnetic ring surrounds the magnetic core, a gap is kept between the magnetic ring and the magnetic core to form a magnetic field, the coil rack is sleeved on the magnetic core and is disposed in the gap.
    Type: Grant
    Filed: December 25, 2012
    Date of Patent: September 15, 2015
    Assignee: Beijing Aeonmed Co., Ltd.
    Inventor: Youfang Shen
  • Patent number: 9058041
    Abstract: An assembly provides a proportioned gas flow and includes a device that provides a pressurized flow of said gas, a release unit that releases the proportioned gas flow, and a chamber having an inlet fluidically connected to the device and an outlet fluidically connected to the release unit. The assembly further includes an admission valve inserted between the inlet of the chamber and the device, a metering valve inserted between the outlet of the chamber and the release unit, and a computer programmed to control the admission valve and the metering valve to provide a proportioned gas flow to the release unit. The assembly further comprises a calibrated orifice inserted between the outlet of the chamber and the release unit.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: June 16, 2015
    Assignee: Faurecia Systemes D'Echappement
    Inventors: Francois Lacouture, Benjamin Oblinger
  • Publication number: 20150144138
    Abstract: Systems and methods are provided for decreasing intracranial pressure and enhancing circulation, as well as for increasing the respiratory rate and encouraging spontaneous respiration. According to such methods, a valve system is coupled with a person's airway. The valve system has an exhalation valve and an patient port that interfaces with the person's airway. The exhalation valve includes a diaphragm having a textured surface. The diaphragm is positioned across an exhalation valve seat and contacts a distal end of the exhalation valve seat, and is configured to prevent or impede respiratory gas flow to the person's lungs until an expiratory pressure equals or exceeds an opening pressure of the exhalation valve, at which time the diaphragm moves away from the distal end to create an open exhaust channel.
    Type: Application
    Filed: March 5, 2014
    Publication date: May 28, 2015
    Applicant: ResQSystems, Inc.
    Inventors: Greg Voss, Keith Lurie, Anja Metzger
  • Patent number: 9038634
    Abstract: 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. The mask of the present invention may further include a heat and moisture exchanger (HME) which is integrated therein.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: May 26, 2015
    Assignee: Breathe Technologies, Inc.
    Inventors: Enrico Brambilla, Joey Aguirre
  • Patent number: 9038635
    Abstract: The disclosure is directed to various tubing arrangements and an associated Y-connector which may be used to facilitate the operative interface of the mask to a ventilator within a ventilation system. The tubing arrangement may comprise a pair of bi-lumen tubes. One end of each of the bi-lumen tubes is fluidly connected to the mask, with the opposite end being fluidly connected to the Y-connector. The Y-connector is in turn fluidly connected to one end of either a tri-lumen tube or a quad-lumen tube also included in the tubing arrangement, the opposite end of such tri-lumen tube or quad-lumen tube being fluidly connected to the ventilator. The Y-connector is uniquely configured to fluidly connect certain lumens of the tri-lumen tube or the quad-lumen tube to dedicated, corresponding ones of the lumens included in respective ones of the bi-lumen tubes, and to further allow for the selective detachment of the tri-lumen tube or the quad-lumen tube from the bi-lumen tubes.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 26, 2015
    Assignee: Breathe Technologies, Inc.
    Inventor: Enrico Brambilla
  • Publication number: 20150136137
    Abstract: A valve assembly (12) includes a first housing (22), a diaphragm member (24) having a plurality of individually pivotable sealing members (50), and a second housing (26) coupled to the end of the first housing over the diaphragm member. The second housing has a plurality of ports (78) spaced about the second member. The diaphragm member is structured to actuate between (i) a first state wherein the sealing members substantially seal the end of the first housing responsive to a pressure within the first housing being below a certain level, each of the ports being open in the first state, and (ii) a second state wherein the sealing members pivot away from and do not substantially seal the end of the first housing responsive to a pressure in the first housing being at or above the certain level, each sealing member substantially sealing a respective one of the ports in the second state.
    Type: Application
    Filed: May 16, 2013
    Publication date: May 21, 2015
    Inventors: Antonio Bugamelli, Duon Alex Truong
  • Patent number: 9027553
    Abstract: A respiration appliance (10), system (40), and method (62, 72, 86) for supporting the airway of a subject (12) as the subject (12) breaths. The flow of gas from the lungs of the subject (12) during exhalation is leveraged to provide support to the airway. In particular, a body (14) that encloses one or more external orifices of the subject (12) provides a resistance differential between inhaled gas flows and exhaled gas flows that supports the subject's airway.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: May 12, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Erik Kurt Witt, Michael Edward Colbaugh, William Edwin Clegg, Douglas Mechlenburg
  • Publication number: 20150122261
    Abstract: An inspiratory exerciser apparatus has a loop shape housing with a mouthpiece 1, an air inlet 2, an outlet 3 and a spring-loaded valve 4 that provides a restriction to inhalation through the inlet. The apparatus includes an electronics unit 60 that records use of the apparatus for download to a remote computer, such as via a connector port 65 or by wireless means. The electronics unit 60 also causes lamps 63 in a translucent part of the housing 11 to flash during the prescribed exercise period to encourage the patient to inhale and exhale at a prescribed rate and for a prescribed time.
    Type: Application
    Filed: May 14, 2013
    Publication date: May 7, 2015
    Applicant: SMITHS MEDICAL INTERNATIONAL LIMITED
    Inventor: Emily Pettitt
  • Patent number: 9022028
    Abstract: An oxygen supply device, preferably a pilot oxygen supply device, has an oxygen source and at least one oxygen mask. A breathing regulator is arranged between the oxygen source and the oxygen mask. An oxygen sensor is arranged downstream of this breathing regulator.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: May 5, 2015
    Assignee: B/E Aerospace Systems GmbH
    Inventors: Wolfgang Rittner, Rüdiger Meckes
  • Publication number: 20150107595
    Abstract: A device for providing positive expiratory pressure therapy to a patient wherein exhaled air is at a comparatively higher pressure than atmospheric pressure, said device including a container to hold liquid, an air inlet means to allow entry of air into the container and an air outlet to allow air to vent from the container. The air inlet means includes a conduit to discharge the exhaled air. The conduit is fixed in position so that the exhaled air is discharged at or substantially adjacent the base of the container. In use liquid is introduced into the container to a predetermined level and the bottom of the conduit is below the predetermined level of liquid to provide a desired level of positive pressure and the air outlet is above the predetermined level of liquid.
    Type: Application
    Filed: December 18, 2012
    Publication date: April 23, 2015
    Inventors: Kathryn POTTER, Rebecca HOUWELING
  • Patent number: 9010329
    Abstract: A fluid flow control valve comprises (a) a high pressure region adapted to contain a fluid at its supercritical or nearcritical temperature and pressure conditions and connected via an orifice to a low pressure region, (b) a seat adjacent the orifice, (c) a sealing element positionable against the seat to form a seal between the high pressure region and the low pressure region, and (d) an electrically and/or electronically controlled actuator operable to move the sealing element against and/or away from the seat to allow control of fluid flow from the high pressure region to the low pressure region. In a specific embodiment, the high pressure region contains a fluid at its supercritical or nearcritical temperature and pressure conditions. The valve may be used, for example, to provide very low flow rates, for example, for supercritical fluid chromatography, supercritical fluid extraction, critical point drying, supercritical fluid cleaning, and supercritical fluid separation methods.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: April 21, 2015
    Assignee: Aerophase
    Inventor: Brian N. Hansen
  • Patent number: 8997739
    Abstract: A vent valve apparatus (10) for use with a system for supplying breathable gas pressurized above atmospheric pressure to a human or animal. The apparatus (10) includes a gas washout vent (15), a vent valve (18) adapted to progressively restrict the flow area of the washout vent (15), and a pressure sensitive vent valve control means (20,22,23). The control means is adapted to progressively cause the vent valve (18) to restrict the flow area of the gas washout vent (15) in response to increases in the pressure of the gas supply, thereby substantially regulating the volumetric flow of gas and/or CO2 gas through the washout vent (15) over a range of gas supply pressures.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: April 7, 2015
    Assignee: Resmed Limited
    Inventor: Shane Douglas Hollis
  • Patent number: 8997740
    Abstract: A humidifier for use with a pressure support system. The humidifier includes a body having an inlet, a fluid holding chamber, and an outlet. The inlet is positioned upstream and in fluid communication with the fluid holding chamber. The outlet is positioned downstream of and in fluid communication with the fluid holding chamber. A back-flow preventing valve is positioned upstream of the fluid chamber. The back-flow preventing valve is movable between an open position, in which the inlet is unblocked, and a closed position in which the inlet is blocked. In the closed position, the back-flow preventing valve prevents fluid, fluid vapor, or both from entering the pressure support via the inlet to the humidifier.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: April 7, 2015
    Assignee: RIC Investments, LLC
    Inventors: J. Raymond Pujol, Patrick W. Truitt, Daniel Martin, Winslow K. Duff, Steven A. Kimmel, Jeffery Keppler, Peter Chi Fai Ho, Lance Busch, Jerome Matula, Jr., Drew A. Demangone, Anthony J. Bafile
  • Patent number: 8997741
    Abstract: A respiration system feeds an anesthetic gas having, a density ?gas, with a Y-piece for connection to a patient, with a respiration circuit having an inspiration branch and an expiration branch, which extend away from the Y-piece. A first supply line from a branch in the expiration branch leads to an anesthetic gas discharge valve and a second supply line from the branch leads to a reservoir. A too high pressure, opposing expiration, cannot build up in the expiration branch and losses of anesthetic gas are kept to a minimum. A prestressing device exerts a prestressing force onto the valve body of the anesthetic gas discharge valve against the effect of gravity. The mass mvalve and the prestressing force determine a threshold pressure in the anesthetic gas discharge line that results in an opening of the anesthetic gas discharge valve.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: April 7, 2015
    Assignee: Dräger Medical GmbH
    Inventors: Ralf Heesch, Henryk Schnaars
  • Patent number: 8991394
    Abstract: A breathing protector may include a filter housing having a central axis, a distal end, a proximal end, a first opening and a second opening. The second opening may be located in a proximal end of the filter housing and the first opening may be located distally of the second opening, such that the first opening is located upstream of the second opening. An exchanging filter may be disposed in the filter housing and a valve seat may extend around the first opening. A rail, located circumferentially of the valve seat, may extend axially and distally away from the first opening. The rail may include a distal end and at least one rib. A valve member may be arranged in a transversal plane to the central axis and engage the valve seat in a closed position. A return spring may press the valve member into the open position.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: March 31, 2015
    Assignee: Atos Medical AB
    Inventor: Jan-Ove Persson
  • Patent number: 8985111
    Abstract: An oscillating positive expiratory pressure apparatus having a housing defining a chamber, a chamber inlet, a chamber outlet, a deformable restrictor member positioned in an exhalation flow path between the chamber inlet and the chamber outlet, and an oscillation member disposed within the chamber. The deformable restrictor member and the oscillation member are moveable between an engaged position, where the oscillation member is in contact with the deformable restrictor member and an disengaged position, where the oscillation member is not in contact with the deformable restrictor member. The deformable restrictor member and the oscillation member move from the engaged position to the disengaged position in response to a first exhalation pressure at the chamber inlet, and move from the disengaged position to an engaged position in response to a second exhalation pressure at the chamber inlet.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: March 24, 2015
    Assignee: Trudell Medical International
    Inventors: Jerry Grychowski, Martin Foley
  • Patent number: 8985112
    Abstract: An MIE apparatus has a blower, a direction valve, an oscillator, and a mask hose connector. The blower is connected to the direction valve, which is connected to the oscillator, which is connected to the hose connector. During insufflation, a direction valve connects exhaust of a blower to an oscillator, causing positive pressure at the hose connector. During exsufflation, the direction valve connects the blower intake to the oscillator, causing negative pressure at the hose connector. The oscillator is a butterfly valve with a 360° rotating disc. During insufflation, the disc is fixed to steadily modulate the airflow. During exsufflation, the oscillator is inactive or in flutter mode. When inactive, the disc is fixed to allow maximum air flow. In flutter mode, the disc continuously rotates so that the air flow rapidly alternates between maximum and minimum.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: March 24, 2015
    Assignee: Hill-Rom Services Pte. Ltd.
    Inventors: Christopher Ikei, Dano S. Carbone, Lewis W. Ward, Tammy Stultz
  • Patent number: 8985098
    Abstract: A method for regulating gas flows into and out of a patient includes repetitively forcing respiratory gases out of the lungs. Respiratory gases are prevented from entering back into the lungs during a time between when respiratory gases are forced out of the lungs. Periodically, an oxygen-containing gas is supplied to the lungs.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: March 24, 2015
    Assignee: Advanced Circulatory Systems, Inc.
    Inventors: Keith G. Lurie, Anja Metzger, Jim Homuth