Means For Removing Substance From Respiratory Gas Patents (Class 128/205.12)
  • Patent number: 10758862
    Abstract: A portable sampling system includes a heated probe, an input/output (“I/O”) system, and one membrane dryer in the form of a conduit that couples the probe to the I/O system. The dryer has purge gas flowing over the drying membrane and a gas sample flowing through the drying membrane, which is in the form of tubes of a perfluorosulfonic acid material, and wherein the dryer is operated in some embodiments under deep vacuum and with the purge gas flowing at a rate that is typically less than that of the gas sample being dried.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: September 1, 2020
    Assignee: Perma Pure LLC
    Inventors: Yuan Lin, Craig Sunada, Sui Peng, Hamza Mohamed
  • Patent number: 10746516
    Abstract: The disclosed technology regards a reusable, non-pyrotechnic diversionary device having a housing assembly which receives and supports a pressure manifold, activation assembly, and a lighting assembly. The housing assembly includes a vessel, a main chassis, and a transparent lens. Positioned within the main chassis is a pressure manifold which supports a compressed gas source. A puncture pin is provided in the activation assembly, and aligned with the compressed gas source to facilitate puncture of the source. The disclosed technology further regards a reusable, non-pyrotechnic diversionary assembly having a housing assembly and a reloading tool. The reloading tool has an externally threaded inner body with an aperture at its distal end sized to receive the puncture pin, and an outer body sized and internally threaded to rotatably receive a portion of the inner body in its shaft, allowing the inner body to traverse through and from the shaft at its distal end.
    Type: Grant
    Filed: August 24, 2019
    Date of Patent: August 18, 2020
    Inventor: Richard Cayer
  • Patent number: 10709862
    Abstract: A device 10 withdraws a breathing gas stream (A) from a ventilation system (B) and transports the breathing gas stream (A) to a gas analysis system (G). The device 10 has a tubular configuration with an inner side (41) and with an outer side (42) and includes two tube sections (11, 11?) and a drying stage (12, 14, 22) with an inner side (43, 43?) and with an outer side (44, 44?), and at least one liquid storage device (13, 21). The drying stage (12, 14, 22) includes a gas-tight and moisture-permeable material that transports moisture from the inner side (43, 43?) of the drying stage (12, 14, 22) through the gas-tight and moisture-permeable material to the outer side (42) of the tubular device (10). The drying stage (12, 14, 22) and/or the liquid storage device (13, 21) is arranged at least partially between the two tube sections (11, 11?).
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: July 14, 2020
    Assignee: Drägerwerk AG & Co. KGaA
    Inventors: Hans-Ullrich Hansmann, Andreas Hengstenberg, Uwe Kühn, Gerd Peter, Michael Riecke
  • Patent number: 10702635
    Abstract: A device for evacuating a surgical site of a patient includes a container that defines a first end having a surgical site engaging surface and a second end having a pressure source engaging surface. The first end defines a tapered cross-section configured for being engageably received within an opening at the surgical site. In operation, vacuum pressure is applied to the second end in order to create a vacuum within the container to evacuate fluids from the surgical site.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: July 7, 2020
    Assignee: A LaRue Company
    Inventors: Angela Vargo LaRue, Charles Channing LaRue, Paul Bradley Forrest
  • Patent number: 10695514
    Abstract: A breathing system for an anesthesia machine is provided, which comprises an operation mode switch, a CO2 canister, a bellows, a patient inspiratory branch and a patient expiratory branch. The operation mode switch comprises a vent communicating with the patient inspiratory branch, a vent communicating with the patient expiratory branch, a vent communicating with the bellows, and a vent communicating with the CO2 canister. The CO2 canister is positioned below the operation mode switch, so as to collect the water flowing through the operation mode switch.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: June 30, 2020
    Assignee: General Electric Company
    Inventors: Jiancheng Zhang, Huiqun Cheng, Hui Fang
  • Patent number: 10661042
    Abstract: An apparatus for supplying breathing air to a person includes a rebreathing system arranged in the air supply circuit, which removes CO2 at least in part present in the person's expiration air with a CO2 absorber, and treats the expiration air to supply treated air to the person again as inhalation air. The apparatus includes a condensate collection container (9) collecting water forming in the air supply circuit. The condensate collection container (9) is arranged at least in part below a reaction zone (17) of the CO2 absorber (1). At least one heat exchanger (10, 14) is provided in the CO2 absorber, via which heat from the air, which flows through the CO2 absorber and is heated as a result of the exothermic CO2 absorption reaction occurring in the reaction zone of the CO2 absorber, is dissipated.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: May 26, 2020
    Assignee: DRÄGERWERK AG & CO. KGAA
    Inventor: Ralf Heesch
  • Patent number: 10543334
    Abstract: A trap bowl is provided to accumulate liquid droplets from a filter, as a liquid content. The trap bowl includes a transparent vertical prism. The transparent vertical prism includes a face that forms a vertical transparent surface facing against a content of the section. The face can provide a first angle of total reflection when content of the section is a type of gas, and a second angle of total reflection when the content of the section is the liquid content. A light source may emit a light beam incident on the face at an angle of incidence. The angle of incidence results in reflection of the light beam, striking the light receiver, when the face has the first angle of total reflection, and results in refraction of the light beam, missing the light receiver, when the face has the second angle of total reflection.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 28, 2020
    Assignee: Mallinckrodt Hospital Products IP Limited
    Inventor: Scott I. Biba
  • Patent number: 10426873
    Abstract: An evacuation system and method for removing and/or treating gaseous and/or particulate byproducts of surgical procedures includes an end effector such as a side vent trocar, an operating room tower or the equivalent, a disposal vessel, a vacuum source and optionally a filter. The end effector may be coupled to the tower by a conduit, the tower may be coupled to the collection tank by a conduit, and the collection tank may be coupled to the vacuum source. Gaseous and/or particulate byproducts may flow from the surgical site through the trocar, conduits, tower tank and filter, and the flow may be regulated at least in part by the components of the system.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: October 1, 2019
    Assignee: Nascent Surgical, LLC
    Inventor: Leonard S. Schultz
  • Patent number: 10413216
    Abstract: A breath testing apparatus is provided with a mouthpiece, a collection chamber, and a discharge chute. A breath sample is captured within the collection chamber and transferred to an evacuated container through the discharge chute by a sample transfer assembly.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: September 17, 2019
    Assignee: QUINTRON INSTRUMENT COMPANY, INC.
    Inventor: Eric Lyle Hamilton
  • Patent number: 10279084
    Abstract: A balloon or balloon cover comprising a composite material having a least one expanded fluoropolymer material and an elastomer is provided. The expanded fluoropolymer material can contain serpentine fibrils. In exemplary embodiments, the fluoropolymer is polytetrafluoroethylene. The composite material may be axially, helically, and/or circumferentially wrapped to form a balloon or balloon cover. The balloon or balloon cover exhibits a sharp increase in stiffness at a predetermined diameter. The balloon or balloon cover can be designed to have a stop point in either a radial or axial direction.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: May 7, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: James L. Goepfrich, Joshua C. Haarer, Brandon C. Hedberg, Benjamin M. Trapp
  • Patent number: 10271788
    Abstract: The present invention describes an apparatus and method for determining the energy expenditure of a subject by indirect calorimetry where respiratory gases O2 and CO2 are captured in a tent mask coupled through a pneumotach flow meter to a vacuum inlet of a blower fan whose speed is controlled by a computer running a program that ensures that the bias flow being drawn through the mask always exceeds the subject's peak expiratory flow. VO2 and VCO2 and flow values are measured on a breath-by-breath basis and used in arriving at a bias flow adjustment voltage to be applied to the blower fan for adjusting its speed.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: April 30, 2019
    Assignee: MGC Diagnostics Corp.
    Inventors: John A. Norlien, Daniel Stout
  • Patent number: 10272273
    Abstract: There is disclosed a fluid adapter for a breathable gas delivery device, such as a facemask, for delivering breathable gas to a user. The fluid adapter comprises an adapter body defining an adapter chamber; a pressurized gas inlet port in fluid communication with the adapter chamber and arranged to be fluidically coupled to a source of pressurized breathable gas and an ambient air inlet port arranged to provide fluid communication between the adapter chamber and ambient air outside of the fluid adapter. The adapter also comprises an adapter outlet port in fluid communication with the adapter chamber and arranged to be fluidically coupled to a delivery device gas inlet port of the breathable gas delivery device; and an adapter connector arranged to connect the fluid adapter to the breathable gas delivery device such that the adapter outlet port is fluidically coupled to the delivery device gas inlet port.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: April 30, 2019
    Assignee: DRAEGER SAFETY UK LIMITED
    Inventors: Paul Nicholas Townsend, Ross Alexander Clubb MacLeod
  • Patent number: 10258263
    Abstract: A rectangular parallelepiped-shaped cartridge main body having a protective cap removably attached to a first end side thereof has a puncture needle retainer that retains a puncture needle provided at the back of a puncture opening provided on the first end side of the cartridge main body such that the puncture needle is slidable toward the puncture opening. Furthermore, a sensor unit having a depositing opening is provided on the first end side of the cartridge main body. The sensor unit has an introduction promoting hole that communicates with an introduction channel communicating with the depositing opening and that opens to the surface of the cartridge main body. The protective cap is provided with a puncture needle protector that covers the puncture needle, a sensor protector that covers the depositing opening of the sensor unit, and a sensor protector that covers the introduction promoting hole.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: April 16, 2019
    Assignee: PHC HOLDINGS CORPORATION
    Inventor: Hiroshi Ando
  • Patent number: 10238918
    Abstract: A platform-agnostic buoyancy aid includes a bladder having a direction of inflation, an inflator coupled to the bladder and configured to fill the bladder with a gas in response to actuation by a trigger, a trigger connected to the inflator and configured to actuate the inflator in response to a tension applied to a ripcord, and a removable directional attachment rig holding the bladder, inflator and trigger, the removable directional attachment rig configured to attach the buoyancy aid to at least one of a wearer's backpack, clothing or harness such that the relative angle of the direction of inflation of the bladder to the wearer's centerline remains substantially constant.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 26, 2019
    Inventor: Raymond Eugene Huot
  • Patent number: 10150145
    Abstract: An automated water purging apparatus prevents dispensing of contaminated water by volumetrically flushing a standing volume of water between a tap and an exterior inlet as required. Volumetric control of flushing and usage monitoring between flushing events minimize water waste and delivery delays. Embodiments operate in demand and/or periodic modes, and switch therebetween according to a user-specified schedule. A controller and valve can be powered by a battery that is recharged by energy derived from water flow through the apparatus. Wireless and/or network connectivity can enable remote communication with the controller via a remote console and/or other wired and wireless devices. Embodiments take partial purge usage volumes into account when determining if standing water is contaminated. Partial purge volumes can include volumes shared with other taps. Embodiments can alert users to potential leaks. Embodiments include a volumetric flow sensor at the external inlet shared among a plurality of taps.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: December 11, 2018
    Inventors: Raymond A McNeil, Frank R Rosselli
  • Patent number: 10144561
    Abstract: A cap assembly for conveying air into the interior of a container and water from the interior of the container, the cap assembly comprising a valve moveable from a first position, in which the cap assembly is closed, to a second position, in which the cap assembly is open to permit the flow of air and water through the cap assembly, the cap assembly further comprising at least two apertures through which the air and water can flow when the cap assembly is open, wherein the apertures are offset with respect to one another in a direction along the longitudinal axis of the cap assembly.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: December 4, 2018
    Assignee: Dyson Technology Limited
    Inventors: Thomas Greer Duvall, Daniel George Cowen, Adam Pinkstone
  • Patent number: 10118207
    Abstract: An automated water purging apparatus prevents dispensing of contaminated water by volumetrically flushing a standing volume of water between a tap and an exterior inlet as required. Volumetric control of flushing and usage monitoring between flushing events minimize water waste and delivery delays. Embodiments operate in demand and/or periodic modes, and switch therebetween according to a user-specified schedule. A controller and valve can be powered by a battery that is recharged by energy derived from water flow through the apparatus. Wireless and/or network connectivity can enable remote communication with the controller via a remote console and/or other wired and wireless devices. Embodiments take partial purge usage volumes into account when determining if standing water is contaminated. Partial purge volumes can include volumes shared with other taps. Embodiments can alert users to potential leaks. Embodiments include a volumetric flow sensor at the external inlet shared among a plurality of taps.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: November 6, 2018
    Inventors: Raymond A McNeil, Frank R Rosselli
  • Patent number: 10105092
    Abstract: Introduced are methods and systems for monitoring a person's sleeping patterns, and detecting episodes of sleeping disorders such as snoring and sleep apnea. In one embodiment, a sensor strip attached to the mattress monitors the user's breathing, and detects signature frequencies corresponding to snoring and sleep apnea. Once a sleeping disorder is detected, a notification can be sent to a device associated with the user, or the user's bed can be automatically adjusted to alleviate the sleeping disorder.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: October 23, 2018
    Assignee: Eight Sleep Inc.
    Inventors: Matteo Franceschetti, Massimo Andreasi Bassi
  • Patent number: 10029191
    Abstract: A liquid-dissolved gas separator includes a metallic separator. The separator has a plurality of open pores that connect a liquid-facing surface of the separator with an opposed vacuum-facing surface of the separator for separating dissolved gases from a liquid traversing the liquid-facing surface of the separator body.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: July 24, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: William E. Rhoden
  • Patent number: 9956328
    Abstract: Multi-conduit connector apparatuses for use in negative pressure wound therapy (NPWT) apparatuses to wound dressing, and methods for installing multi-conduit connector apparatuses in NPWT apparatuses.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: May 1, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Justin Alexander Long, Aidan Marcus Tout, Larry Tab Randolph, Christopher Brian Locke
  • Patent number: 9931054
    Abstract: A low dead space liquid trap includes: a tube, having an inlet, an outlet, and an aperture disposed between the inlet and the outlet at a bottom of the tube, wherein the tube defines a channel extending in a first direction between the inlet and the outlet, the channel having a cross section perpendicular to the first direction; a reservoir disposed beneath the aperture of the tube; and a gas permeable membrane extending across the channel at an angle greater than zero with respect to the cross section of the channel.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: April 3, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Brian Matthew Fudge, David Scampoli
  • Patent number: 9932429
    Abstract: Poly(ethylene tetrafluoroethylene) (ETFE) polymers having an average molecular weight of at least 300,000 g/mol and a melt enthalpy of at least 57 J/g are provided. The ETFE polymer may include at least one additional comonomer. The ETFE polymer is used to form a porous tape or membrane that has a node and fibril structure. A porous ETFE tape may be formed by lubricating the ETFE polymer and subjecting the lubricated polymer to pressure at a temperature below the melting point of the ETFE polymer. Optionally, the ETFE tape may be expanded at a temperature below the melting temperature of the ETFE polymer to form an expanded ETFE membrane. Alternatively, the ETFE polymer may subjected to heat and pressure without the addition of a lubricant to form a dense preform. The dense preform may be subsequently slit in a length direction and stretched to form a dense ETFE fiber.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: April 3, 2018
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Guy A. Sbriglia
  • Patent number: 9919122
    Abstract: 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.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: March 20, 2018
    Assignee: Vyaire Medical Consumables LLC
    Inventors: Paul Kendrick, Mark Woelfel
  • Patent number: 9904296
    Abstract: Apparatuses, methods and systems for controlling flow in a fluid distribution system are described herein. One apparatus includes a flow sensor configured to determine a flow of a fluid through a conduit of a fluid distribution system, a valve associated with the conduit and coupled to an actuator, and a controller connected to the flow sensor and the actuator.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: February 27, 2018
    Assignee: Honeywell International Inc.
    Inventors: Andrzej Peczalski, Paul Wacker
  • Patent number: 9895654
    Abstract: The present invention relates to a water removal device, method and system for gas sampling. The water removal device comprises a dehydration cup, a gas chamber, a pressure sensor, a flow sensor, a feedback control unit, a main channel and a sucking pump. The feedback control unit controls the working state of the sucking pump according to monitoring data of the pressure sensor and the flow sensor. The water removal device, method and system for gas sampling have the advantages that a double-channel gas sampling structure is adopted so that liquid water in a gas course can be removed effectively. By the adoption of an atmospheric pressure switch structure, no gas flow will pass through a second channel under normal circumstances, and the utilization of sampled gas is increased.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: February 20, 2018
    Assignee: EDAN INSTRUMENTS, INC
    Inventors: Zhenying Zhu, Lu Chen
  • Patent number: 9877476
    Abstract: Devices for the preparation of depleted blood products that provide for the depletion of oxygen, carbon dioxide, or oxygen and carbon dioxide are described. In addition, devices for the replenishment of oxygen and other gases to an anaerobic blood product are described. Methods and systems incorporating depletion and addition devices are provided to optimize the preparation, storage and transfusion of blood products to a recipient are described.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: January 30, 2018
    Assignee: New Health Sciences, Inc.
    Inventors: Steven F. Levesque, Thomas R Ruth
  • Patent number: 9872945
    Abstract: A blood treatment filter including: a filter container that introduces blood from an inlet into an internal space, and discharges treated blood from an outlet; a filter material that is housed in the filter container to partition the internal space into an inlet side space and an outlet side space, and filters the passing blood to remove a specific component; an inlet port that forms an inlet channel through which the blood flowing from the inlet to the internal space passes; an outlet port that forms an outlet channel through which the blood flowing from the internal space to the outlet passes, wherein the outlet channel has a tapered outlet passage with an inner diameter increasing from the internal space side toward the outlet side.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: January 23, 2018
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventor: Tomohisa Yokomizo
  • Patent number: 9839755
    Abstract: A pulmonary secretion clearing airway structure and related airway management system is disclosed that has a double lumen portion which each lumen of the double lumen portion operably secured to an airway management system so that inspiratory fluid (air/oxygen mixtures, with or without added water vapor) is delivered to the distal end of the ventilation catheter through one of the two lumens and expired inspiratory fluid, pulmonary secretions, and pulmonary fluids are removed from the patient through the other lumen. The expiratory fluid pathway preferably includes a secretion collection system for removing the pulmonary secretions and the like from the pathway, thereby improving operation and safety of the system. The airway structure can be a ventilation catheter or a supraglottic airway system such as laryngeal mask and the like.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: December 12, 2017
    Assignee: Foster Pepper PLLC
    Inventor: John Allen Pacey
  • Patent number: 9833564
    Abstract: A fluid conduit assembly for delivery of a medication fluid, and an associated fluid delivery system, are disclosed here. The fluid conduit assembly includes a trapping chamber having an interior volume to receive the medication fluid. The fluid conduit assembly also includes an inlet in fluid communication with the interior volume, a first outlet arrangement for the trapping chamber, and a second outlet arrangement for the trapping chamber. The first outlet arrangement accommodates flow of liquid from the interior volume, while inhibiting flow of gas from the interior volume. The second outlet arrangement accommodates flow of gas from the interior volume, while inhibiting flow of liquid from the interior volume.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: December 5, 2017
    Assignee: Medtronic MiniMed, Inc.
    Inventor: Susan McConnell Montalvo
  • Patent number: 9827394
    Abstract: The invention concerns a cartridge for an inhalation device for delivering anaesthetic to a human or animal wherein anaesthetic in the cartridge is dispersed in an anaesthetic control release medium; an inhalation device for use with the cartridge and a formulation including at least one selected anaesthetic and anaesthetic control release medium.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: November 28, 2017
    Assignee: University College Cardiff Consultants Limited
    Inventors: Judith Hall, Alison Paul, Antony Wilkes
  • Patent number: 9750905
    Abstract: A pressure regulating device includes a housing having an inlet, a main outlet, an J an external venting outlet. An internal venting aperture is between the inlet and the external venting outlet. A valve is between the external venting outlet and the internal venting aperture. When the pressure of gases in the flow path is below a predetermined level, the valve at least partially blocks the internal venting aperture. When the pressure is above the predetermined level, the valve opens to allow at least a portion of the gases to flow from the inlet through the internal venting aperture and the external venting outlet. The valve is shaped to open in such a manner that the portion of gases flowing varies with the flow rate, such that the pressure at the main outlet is substantially constant over the flow rate range.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: September 5, 2017
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Paul Moody, Bronwyn Nicola Cotter, Neil Prime, Glenn Whyte, Matthew Jon Payton
  • Patent number: 9656186
    Abstract: An elongated flow-through degassing apparatus includes an elongated gas permeable outer shell and one or more gas-permeable, liquid-impermeable elongated inner conveyance members extending within the outer shell and at least partially through a chamber defined within the outer shell. The apparatus also includes inlet and outlet junctions for securing the outer shell to the inner conveyance member. The outer shell exhibits a first permeance that is substantially greater than a second permeance of the inner conveyance member. The degassing apparatus may be sufficiently flexible so as to be readily manipulatable into desired configurations.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 23, 2017
    Assignee: IDEX Health and Science, LLC
    Inventors: Carl Sims, Yuri Gerner, Quan Liu
  • Patent number: 9597033
    Abstract: A biological-information obtaining apparatus includes a light-emitting unit configured to emit light, an image-capturing unit configured to capture images, in time sequence, obtained by irradiating a living body with the light emitted and by causing the light to be transmitted through or reflected by the living body, the image-capturing unit being sensitive to at least two color components, an extreme generation unit configure to generate, for each of the captured images in the time sequence, a maximum value and a minimum value of each of the color components in a certain area of the captured image, and an oxygen-saturation calculation unit configured to calculate oxygen saturation on the basis of the maximum value and the minimum value of each of the color components in the certain area of the captured image.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: March 21, 2017
    Assignee: Sony Corporation
    Inventors: Mitsuharu Ohki, Tomonori Masuno
  • Patent number: 9506898
    Abstract: A device and method for generating vapor concentrations of a chemical. The device comprises a reservoir including a mixing chamber and a delta tube inlet section attached to the mixing chamber for supplying a first mixture of a carrier gas and a vapor of the chemical to the mixing chamber. A dilution gas inlet section is also attached to the mixing chamber and supplies a stream of dilution gas to the mixing chamber to blend with the first mixture of the carrier gas and the vapor of the chemical resulting in a second mixture of the carrier gas, the vapor of the chemical, and the dilution gas. An exit port section attached to the mixing chamber directs the second mixture of the carrier gas, the vapor of the chemical, and the dilution gas to an analyzer or system after it emerges from the reservoir.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: November 29, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Robin L. Matthews, Kwok Y. Ong
  • Patent number: 9504797
    Abstract: The system and method of the present application predicts if there is sufficient CO2 absorbent capacity for the next anesthesia case. If insufficient, the canister can be preemptively replaced when no patient is connected to the breathing system. Such prediction also allows clinicians to determine if the CO2 canister has to be changed during the present case or to wait until the end of the case. In the latter, the clinician may buy time by increasing the fresh gas flow rate to reduce the amount of patient CO2 gases recirculated. A predictive estimation of CO2 breakthrough allows more time to prepare for an orderly CO2 canister replacement during a quiet period in the anesthesia care.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: November 29, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Robert Q. Tham
  • Patent number: 9220854
    Abstract: The present disclosure involves a breathing apparatus that is particularly well suited for use by water sports enthusiasts. The device provides a breath of air to a swimmer or surfer at depth without the use of compressed air tanks. Physically innocuous to the wearer, the device can be repeatedly recharged with minimal interruption to the sports activity.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: December 29, 2015
    Inventor: Mark Okrusko
  • Patent number: 9174016
    Abstract: An in-line humidifier is disposed along the passageway of a breathing system. The humidifier includes a humidification chamber having a fluid inlet, a fluid outlet, and a reservoir. The humidifier includes a liquid trap which includes a chamber, a fluid inlet in communication with the liquid trap chamber, and a fluid outlet in communication with the liquid trap chamber. The liquid trap is constructed and arranged to discourage liquid from back-flowing from the humidifier to a source of gas.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: November 3, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Mark W. Barclay, Kenneth E. Cole
  • Patent number: 9149595
    Abstract: A respiratory mask assembly is provided. The assembly includes at least one post having a nasal engaging portion on about a first end thereof for delivering treatment gases to the nasal cavity of a patient. A mask having an inlet for receiving treatment gases from a fluid source and at least one receptacle for being sealably engaged with a respective one of the at least one post for delivering treatment gases from the inlet through the receptacle and into the nasal cavity of the patient is provided. The mask is configured for selective sealable engagement with the patient's mouth, patient's nose, or both the patient's mouth and the patient's nose.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: October 6, 2015
    Inventor: Stuart Heatherington
  • Patent number: 9114219
    Abstract: A system (10) and method of insufflating-exsufflating a subject (12) that enables monitoring and/or control over an enhanced set of breathing parameters during insufflation-exsuffiation. The system and/or method may include automatic triggering and/or notification to a caregiver of insufflation-exsuffiation. The insufflation-exsuffiation of the subject may be preceded by a secretion loosing routine that loosens secretions in the airway of the subject without moving the loosened secretions up the airway.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: August 25, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Gardner Kimm, Smita Garde, Mabini Arcilla, Samir Ahmad
  • Publication number: 20150128937
    Abstract: 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.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Inventors: James W. Teetzel, Gary M. Lemire, Daniel A. Desrosiers, Mark A. Hansen
  • Patent number: 9027550
    Abstract: A method and apparatus is provided to separate Platelet Rich Plasma (PRP) utilizing standard whole blood harvesting techniques and separating the solution via centrifugation preparation. A pump is provided to pump PRP/Stem Cell solution from a centrifugation reservoir in to a nebulizer to aerosolize the PRP/Stem Cell solution in the nebulizer with oxygen. A patient will then inhale the aerosolized or vaporized PRP/Stem Cell solution into their respiratory system. Removal of any waste PRP/Stem Cell solution is provided by trapping the PRP/Stem Cells and any other biological matter other in a HEPA filter and allowing exhaled gasses to safely exit the from the Semi-Rebreathing Chamber.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 12, 2015
    Inventors: Brian Lemper, Paul Regen
  • Patent number: 9010321
    Abstract: A system for keeping moisture in a vapor phase and for removing particles from a gas is described. The system includes a filter and a heating chamber. The filter is capable of being heated and includes a mechanical element that effectively regulates the heating of the filter. Heat production of the heating chamber is coupled to the proper insertion of the filter into the chamber, such that the filter closes an electrical switch in the heating chamber to allow for the production of heat. An exemplary use of the system is the keeping moisture in a vapor phase and removing pathogenic particles from the exhalation path of a ventilated subject.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 21, 2015
    Assignee: 12th Man Technologies, Inc.
    Inventors: Alex Stenzler, Steve Han
  • Patent number: 8985104
    Abstract: A circulation system for use in a rebreathe system includes a base and a fan assembly coupled to the base. The base includes a motor and a rotatable drive shaft coupled to the motor. The fan assembly includes a housing with an inlet and outlet. The fan assembly further includes a fan coupled to the drive shaft to rotate therewith and is fluidly isolated from the drive shaft.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: March 24, 2015
    Assignee: CareFusion 207, Inc.
    Inventor: Earl Valentine
  • Patent number: 8950401
    Abstract: 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.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: February 10, 2015
    Assignee: Wilcox Industries Corp.
    Inventors: James W. Teetzel, Gary M. Lemire, Daniel A. Desrosiers, Mark A. Hansen
  • Publication number: 20150007819
    Abstract: A portable medical device for sedating a patient includes a first vessel with a first substance contained under pressure and a second vessel with a second substance contained under pressure. A Y-valve may be provided with a first inlet, a second inlet, an outlet, a first pressure control valve between the first inlet and the outlet, and a second pressure control valve between the second inlet and the outlet. Tubes may connect the first and second vessels and a face mask to the Y-valve. The first pressure control valve may be opened to permit a fluid flow of the first substance from the first vessel to the face mask, and the second pressure control valve may be opened to permit a fluid flow of the second substance from the second vessel to the face mask.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 8, 2015
    Inventors: Matthew MACONAUGHEY, Marquis Dunton
  • Publication number: 20140373846
    Abstract: The present invention relates to improvements to powered air purifying respirators (PAPR). PAPR are known generally for use in polluted environments. A typical PAPR comprises a powered impellor arranged to draw air from the atmosphere, a filter element and a mask to provide the filtered and pressurized air to the user. Embodiments of the present invention place a generator unit, comprising a filter and impellor for pressurizing the air, behind the head of the user, and include components for improving delivery of the air to the user and improving its quality.
    Type: Application
    Filed: December 5, 2012
    Publication date: December 25, 2014
    Applicant: PAFtec Technologies Pty Ltd.
    Inventors: Dan Kao, Xiaoyi (Eric) Fu, Alexander Virr, John Michael Snow, Damian Charles Johnson
  • Patent number: 8915248
    Abstract: An oxygen concentrator may rely on a pressure swing adsorption process to produce an oxygen enriched gas stream from canisters filled with granules capable of separation of oxygen from an air stream. The adsorption process uses a cyclical pressurization and venting of the canisters to generate an oxygen enriched gas stream. During venting of the canisters, use of oxygen as a purge gas may improve the efficiency and lifetime of the oxygen concentrator.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: December 23, 2014
    Assignee: Inova Labs, Inc.
    Inventors: William R. Wilkinson, Allan Sten Westersten, H. David Shockley, Jr.
  • Publication number: 20140366877
    Abstract: A CPAP or other ventilation system includes a mask, a flow generator, a positive or high pressure line to provide positive or high pressure air from the flow generator to the mask and a vacuum or return line provided to actively extract exhaled gas from the breathing chamber and/or the air delivery conduit of the mask. The vacuum or return line includes a vent outlet preferably positioned remote from the mask.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 18, 2014
    Inventors: Karthikeyan SELVARAJAN, Philip Rodney KWOK, Barton John KENYON, Bruce David GREGORY, Nicholas Jerome REED, Christopher Kingsley BLUNSDEN
  • Patent number: 8887723
    Abstract: A device (FV) for filtering breathing gas has a housing (G) with a gas inlet (GE), a gas outlet (GA) and a filter (F), which is arranged in a first housing section (G1) formed between the gas inlet (GE) and the gas outlet (GA). The housing (G) has a second housing section (G2) gas-tightly separated from the first housing section (G1) with at least one first wall (W1, W2, W3), which establishes a thermal contact with a wall (W1, W2, W3) of the first housing section (G1). The second housing section (G2) has an opening on an outer side of the housing (G).
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: November 18, 2014
    Assignee: Dräger Medical GmbH
    Inventors: Marco Ventur, Pierre Mühlbauer, Markus Hampe
  • Publication number: 20140332004
    Abstract: 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.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Applicant: TAIKO PHARMACEUTICAL CO., LTD.
    Inventors: Shigeo ASADA, Takashi Shibata