Gas Stream Passed Through Jet Nozzle Or Venturi Passage Patents (Class 128/204.25)
  • Patent number: 10413694
    Abstract: A patient interface has a single loop headstrap and a mask for covering at least the nostrils of the user. The single loop headstrap extends from the mask at either end. A short length of supple conduit is coupled to the mask by a swivel or ball joint to allow rotation of the conduit relative to the mask through different angles and orientations.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: September 17, 2019
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Olivia Marie Allan, Arvin San Jose Gardiola, Lewis George Gradon, Wen Dong Huang, Alastair Edwin McAuley, Mark Arvind McLaren, Craig Robert Prentice, Andrew Paul Maxwell Salmon, Silas Sao Jin Siew
  • Patent number: 10406312
    Abstract: A CPAP flow driver is adapted to split supplied breathable fluid into a first portion delivered to a venturi throat to generate a pressure drop to draw in ambient air to create a CPAP flow and a second portion that is delivered to a nebulizer to drive the nebulizer.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: September 10, 2019
    Inventor: Stephen Donald Flynn
  • Patent number: 10369322
    Abstract: A breathing apparatus includes a compressed air source with a compressed air source valve, a breathing regulator with a pressure reducer and a demand valve, a breathing mask connected to the demand valve at a first inlet connector, a second air source, a switching mechanism having an actuating member for switching between the compressed air source and the second air source and an exhalation valve, on the breathing mask, movable between a higher internal pressure in a second operating state than in a first operating state. The actuating member is provided on the breathing regulator. The switching mechanism, upon being switching to compressed air breathing, activates the lung-governed demand valve and adjusts the exhalation valve to the second operating state. Upon switching to breathing via the second air source, the lung-governed demand valve is deactivated and the exhalation valve (30) is adjusted to the first operating state.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: August 6, 2019
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Dirk Feil, Alexander Busch, Volker Nesch
  • Patent number: 10307553
    Abstract: An nCPAP device for assisting patient breathing includes a generator body forming an inlet, a chamber, and first and second flow circuits. The chamber directs pressurized gas from the inlet to the flow circuits. The flow circuits each include a nozzle, a channel, and at least one port. The nozzle emits a jet stream into the channel in a direction of a patient side thereof. The port fluidly connects the channel to ambient, and promotes entrainment of ambient air with the jet stream. In some embodiments, the channel forms a ramp feature directing exhaled air toward the jet stream in an angular fashion. The generator body requires reduced driving pressures to achieve target CPAP levels and reduces total imposed WOB as compared to conventional designs.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: June 4, 2019
    Assignee: CAREFUSION 207, INC.
    Inventors: Christopher M. Varga, Geoffrey C. Wise
  • Patent number: 10143813
    Abstract: A nasal continuous positive airway pressure (nCPAP) device having a hollow body with a proximal wall, a distal wall, and an exhaust port extending through the distal wall. A proximal tubular member extends through the proximal wall of the body and is arranged such that a stream of gas entering the body through the proximal tubular member will exit the proximal tubular member in a first direction and then enter the exhaust port. A nozzle extends through the body and is arranged such that a stream of gas entering the body through the nozzle will exit the nozzle and then enter the proximal tubular member in a second direction that is opposite the first direction.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: December 4, 2018
    Assignee: Vyaire Medical Consumables LLC
    Inventors: Brian Pierro, Steven M. Harrington, Bruce K. Bridges, Douglas Gaylord
  • Patent number: 10105281
    Abstract: A negative pressure vest includes a housing defining a fixed, minimum interior volume. The housing has a neck opening, a pair of arm openings and a trunk opening. Each of the neck and arm openings includes a sealing member. A one-way check valve communicates between the interior volume and an ambient environment surrounding an exterior of the housing. The one-way check valve is openable at a pressure greater than an ambient atmospheric pressure. A one-way pressure-relief valve communicates between the interior volume and the ambient environment. The one-way intake valve is openable at a predetermined negative pressure. A method of providing negative pressure to the user's thorax is also provided.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: October 23, 2018
    Assignee: TRUDELL MEDICAL INTERNATIONAL
    Inventor: Stephen Costella
  • Patent number: 10058668
    Abstract: Methods and systems are provided for intra-airway breath sensors where intra-airway breath sensors are not located within a ventilation gas delivery circuit, but are exposed to spontaneous respiration airflow from a patient. Furthermore, methods and systems of the present invention may be used to protect an intra-airway breath sensor from contacting tissue or accumulating debris that may impair abilities of the intra-airway breath sensors.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: August 28, 2018
    Assignee: Breathe Technologies, Inc.
    Inventors: Anthony Wondka, Gregory Kapust, Robert Bryan, Michael Khenansho
  • Patent number: 9999742
    Abstract: A combination positive airway pressure (PAP) or continuous positive airway pressure (CPAP) and resuscitation system and related methods. The systems can be well-suited for use in providing CPAP therapy for a neonate or infant patient, with the ability to also provide resuscitation therapy at a peak inspiratory pressure (PIP) as needed or desired without switching to another system or switching the patient interface. The system can include an expiratory pressure device capable of regulating a positive end expiration pressure (PEEP) of the system, which preferably can also induce pressure oscillations relative to a mean PEEP.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: June 19, 2018
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Gavin Walsh Millar, Christopher Leigh Beaumont
  • Patent number: 9849313
    Abstract: The invention relates to a system to deliver a respiratory gas to crew members in a cabin of an aircraft. The system includes at least one respiratory mask, an ambient air inlet for admission of ambient air into the respiratory mask, a source of additional gas, supply lines to transport the additional gas to the respiratory mask, a mixing chamber provided on the supply lines to mix the additional gas with ambient air to supply a respiratory gas corresponding to a mixture of the additional gas and the ambient air to the respiratory mask, regulation system to regulate the additional gas content of the respiratory gas at least partly as a function of the aircraft altitude.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: December 26, 2017
    Assignee: Zodiac Aerotechnics
    Inventors: Severine Aubonnet, Henri Marotte
  • Patent number: 9844640
    Abstract: A vent assembly for use with a mask assembly includes a first vent and a second vent having at least one different flow characteristic wherein the vent assembly can be switched between the first vent and the second vent to alter flow of exhaled gas from a patient.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: December 19, 2017
    Assignee: RESMED LIMITED
    Inventors: Donald Darkin, Patrick J. McAuliffe
  • Patent number: 9827386
    Abstract: A pressurized flow of breathable gas is delivered to the airway of a subject through a gas circuit (16) as part of a therapy regime. Leakage of gas from within the circuit to atmosphere to prevent re-breathing of gas is dynamically adjusted to stabalize the total amount of leakage.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: November 28, 2017
    Assignee: Koninklijke Philips N.V.
    Inventors: Stephen Dalton Pittman, Lauren Elizabeth Hueser
  • Patent number: 9717867
    Abstract: In a first aspect, the invention relates to a method for operating an aerosol inhalation device (10), comprising the steps of transporting a certain amount of an aerosol to a desired location outside said device (10) and vibrating the transported aerosol when it has reached said desired location. In a second aspect, the invention relates to an aerosol inhalation device (10) comprising a pump (1) for flowing a certain amount of an aerosol to a desired location outside the device (10), a vibrator (2) for vibrating the transported aerosol in a vibration mode and a control configured to actuate the vibrator (2) for vibrating the flowed aerosol only when it has reached said desired location.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: August 1, 2017
    Assignees: PARI GmbH Spezialisten für effektive Inhalation, PARI Pharma GmbH
    Inventors: Martin Luber, Andreas Boehm, Uwe Schuschnig, Axel Krüner
  • Patent number: 9669182
    Abstract: The present invention provides an apparatus for nasally delivering a supraglottic jet ventilation and methods of treating breathing disorders by utilizing the apparatus for nasally delivering a supraglottic jet ventilation.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: June 6, 2017
    Assignee: THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
    Inventor: Huafeng Wei
  • Patent number: 9610415
    Abstract: The present invention provides for an enhanced eductor element that significantly increases the amount of pressure generated at the siphon tube without significantly increasing the flow resistance through the eductor. The invention further provides for breath-actuated inhalation devices including the enhanced eductor element as an actuation mechanism.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: April 4, 2017
    Assignee: MAP Pharmaceuticals, Inc.
    Inventors: Benjamin Stedman, Prashant Kakade, Darrell Woehler, John Leonard
  • Patent number: 9580820
    Abstract: A self-breathing electrochemical oxygenerator includes an outer housing including an upper housing part and a lower housing part. A cavity formed by the upper housing part includes a battery installation cavity, a controller installation cavity and an electrochemical assembly installation cavity. Batteries are installed within the battery installation cavity. A controller is installed within the controller installation cavity. A self-breathing electrochemical pure oxygen generation assembly is installed within the electrochemical assembly installation cavity. An upper housing body of the upper housing part corresponding to the electrochemical assembly installation cavity has air holes. After the external oxygen output pipe is blocked, through timely manual operation, the pressure within the pure oxygen generation assembly is ensured to fall within a normal range, so as to ensure that the pure oxygen generation assembly works normally, thereby ensuring long service life of the oxygenerator.
    Type: Grant
    Filed: October 21, 2012
    Date of Patent: February 28, 2017
    Assignee: WUXI GREENSTEK CO., LTD
    Inventors: Mingruo Hu, Akira Ogasawara, Guangyi Cao
  • Patent number: 9370635
    Abstract: A breathing assistance device with improved pressure characteristics is disclosed. The device is capable of providing a high level of CPAP per unit of supplementary respirable gas consumed while maintaining low CPAP fluctuations throughout the breath cycle. The invention further optionally comprises a manometer for monitoring pressure and a safety pressure relief valve as additional safety measures against overpressure delivered to a patient. The device may be made to be completely disposable for one-time or single patient use.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: June 21, 2016
    Assignee: MERCURY ENTERPRISES, INC.
    Inventor: Jeffrey B. Ratner
  • Patent number: 9254370
    Abstract: A nasal or full-face mask frame includes a main body and a vent assembly provided to the main body. The vent assembly includes a plurality of holes arranged in at least one column. The holes are positioned on a relatively flat and/or non-recessed portion of the main body.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: February 9, 2016
    Assignee: ResMed Limited
    Inventors: Susan Robyn Lynch, Philip Thomas Stallard, Scott Alexander Howard, Joshua Adam Gudiksen, Murray William Lee, Matthew Eves, Melanie Lucia Cariola
  • Patent number: 9237928
    Abstract: Mobile functional hospital unit (1) for the temporary distribution of medical fluids, comprising at least one rear outlet (5, 25; 30) for tapping off medical fluid designed and able to be connected to a medical fluid distribution network arranged within a hospital building and associated with the rear wall (6) of the cabinet (2), at least one side outlet (21, 22, 23, 24; 17) for tapping off medical fluid associated with at least one side wall (27, 28) of the cabinet (2), and at least one connecting line (9) fluidically connecting at least one gas cylinder (3, 4; 7, 8) to at least one of the rear (5, 25) and side (21, 22, 23, 24) gas tapping outlets in order to supply at least one of the rear (5, 25) and side (21, 22, 23, 24) outlets with gas delivered by at least one gas cylinder (3, 4; 7, 8).
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: January 19, 2016
    Assignee: Air Liquide Sanita Service SpA
    Inventors: Vittorio De Nando, Patrick Deneux, Nathalie Demerville
  • Patent number: 9227030
    Abstract: The present invention provides for an enhanced eductor element that significantly increases the amount of pressure generated at the siphon tube without significantly increasing the flow resistance through the eductor. The invention further provides for breath-actuated inhalation devices comprising the enhanced eductor element as an actuation mechanism.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: January 5, 2016
    Assignee: MAP Pharmaceuticals, Inc.
    Inventors: Benjamin Stedman, Prashant Kakade, Darrell Woehler, John Leonard
  • Patent number: 9138556
    Abstract: Disclosed is a device for respiratory assistance and a measurement system that includes the device. The device includes a tube, which forms a main channel, and at least one auxiliary channel connected to a source of respiratory gas. The device further includes a unit by which vitiated gas, exhaled by a patient, is removed from the patient between a distal end of the auxiliary channel, which opens into the main channel, and a distal end of the main channel, and which is configured to capture and remove the exhaled gas, undiluted by insufflated fresh respiratory gas.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: September 22, 2015
    Assignee: GEORGES BOUSSIGNAC
    Inventor: Georges Boussignac
  • Patent number: 9072859
    Abstract: An inhalation mask, an artificial nose unit, an anesthetic gas concentration detector, an extension tube, an anesthesia attachment, and an elastic bag are in communicative connection in sequence. The elastic bag has a mixing chamber formed therein and has an anesthetic inlet, an air inlet, and an outlet port each formed at the boundary to the exterior. The anesthesia attachment includes a hollow structure and an evaporation injector syringe. The outlet port of the elastic bag is in communicative connection with the hollow structure through its opening, and the evaporation injector syringe tightly mates with the interior of another opening. The anesthetic introduced into the mixing chamber is vaporized and then mixed with air introduced from the air inlet into mixed gas. The mixed gas is supplied from the outlet port to the inhalation mask by compressing the elastic bag or other procedures.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: July 7, 2015
    Inventor: Naoyuki Ishikita
  • Publication number: 20150101610
    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: Application
    Filed: April 15, 2013
    Publication date: April 16, 2015
    Applicant: Metran Co., Ltd.
    Inventor: Kazufuku Nitta
  • Publication number: 20150068519
    Abstract: In accordance with the present invention, there is provided an adaptor or attachment which is suitable for integration into the patient circuit of a ventilation system, such as a non-invasive open ventilation system, is configured for attachment to any standard ventilation mask, and is outfitted with a jet pump which creates pressure and flow by facilitating the entrainment of ambient air. The adaptor comprises a base element and a nozzle element which are operatively coupled to each other. The base element further defines a throat and at least one entrainment port facilitating a path of fluid communication between the throat and ambient air. The nozzle element includes a jet nozzle, and a connector which is adapted to facilitate the fluid coupling of the nozzle element to a bi-lumen tube of the patient circuit. The connector includes both a delivery port and a sensing port.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: Breathe Technologies, Inc.
    Inventors: Enrico Bambrilla, Samir S. Ahmad
  • Patent number: 8968236
    Abstract: An injection device (110) comprises a housing (112) adapted to receive a syringe (122) having a discharge nozzle (118), an actuator (114) and a drive (120) acted upon the syringe to advance it from a retracted position in which the discharge nozzle is contained within the housing to an extended position in which the discharge nozzle is contained within the housing to an extended position in which the discharge nozzle extends from the housing. There is a locking mechanism (HS) in communication with the actuator and activatable to be moved from a locked position in which the actuator is prevented from releasing the drive to an unlocked position in which the actuator is operable to act upon drive to advance the syringe. The locking mechanism or the housing includes integrally formed biasing means (210) adapted to return the locking mechanism to a locked position when it is not activated. There is no need for separate springs to be used bias to the releasable locking mechanism out the housing.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: March 3, 2015
    Assignee: Cilag GmbH International
    Inventors: Douglas Ivan Jennings, Charles Michael Dean
  • Patent number: 8950400
    Abstract: A gas flow reversing element is provided comprising a main piece defining at least one closable outlet opening, a branching piece extending from the main piece, a line connector connected to the distal end of the branching piece, a pressure connector connected to the main piece, the pressure connector being structured to be fluidly connected to a pressurized gas supply; and a nozzle being configured and arranged in the main piece in such a way that a gas flow flowing in the main piece from the pressure connector through the nozzle to the at least one outlet opening, with the at least one outlet opening being disposed in the second open position, a gas flow can also be generated in the branching piece in a direction toward the at least one outlet opening.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: February 10, 2015
    Assignee: Dolphys Technologies B.V.
    Inventor: Dietmar Enk
  • Patent number: 8931478
    Abstract: A patient interface assembly includes a housing that defines an inlet port and an outlet port. A jet pump receives pressurized gas flow from the inlet port and delivers the gas flow to the outlet port. A nebulizer is fluidly coupled to the outlet port and positioned to introduce medication into the gas flow and deliver medicated gas flow to a patient.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: January 13, 2015
    Assignee: Carefusion 2200, Inc.
    Inventors: Thomas J Dunsmore, Geoffrey C. Wise, Thomas C. Wilschke, Louis P. Mingione
  • 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
  • Publication number: 20140366880
    Abstract: The current embodiment shows a portable, adjustable, oxygen delivery system. This embodiment delivers up to one-hundred percent oxygen while simultaneously conserving oxygen during the user's exhalation phase. The current embodiment contains an air-entrainment system (FIG. 12), a reservoir bag (FIG. 7), a one-way valve assembly (FIG. 5a), and a cannula (FIG. 2a) for delivering a precise amount of oxygen. This embodiment also allows for independent control over oxygen flow and oxygen percentage. Other embodiments are described.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventor: Andrew Donald Metz
  • Patent number: 8900353
    Abstract: An oxygen concentrator system includes a portable unit and a base unit. The portable unit includes an air separation device. The base unit includes a vacuum pump. The portable unit is moveable with respect to the base unit between a connected position, in which the vacuum pump of the base unit is connected to the air separation device of the portable unit for applying vacuum pressure at the air separation device of the portable unit, and a disconnected position, in which the vacuum pump is not connected to the air separation device of the portable unit. The air separation device operates using a vacuum pressure swing adsorption (VPSA) cycle when the portable unit is in the connected position. The air separation device operates using a pressure swing adsorption (PSA) cycle when the portable unit is in the disconnected position.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: December 2, 2014
    Assignee: Oxus America, Inc.
    Inventors: Loren M. Thompson, Gary C. Abusamra, Andrew M. Voto
  • Publication number: 20140305436
    Abstract: A pump unit includes a micro pump and an assist mechanism. The micro pump includes: a housing having an inflow port and an outflow port; and a pump device built in the housing, the pump device transporting a fluid from the inflow port to the outflow port. The assist mechanism includes a jet nozzle for jetting a fluid. A jet port is opened at a tip portion of the jet nozzle. The assist mechanism is disposed in such a manner that a gap through which a fluid outside can flow is formed between the tip portion and the housing. The jet port is located in proximity to the inflow port. The jet port directly faces the inflow port.
    Type: Application
    Filed: December 5, 2012
    Publication date: October 16, 2014
    Applicant: Metran Co., Ltd.
    Inventor: Kazufuku Nitta
  • Patent number: 8813746
    Abstract: A nasal continuous positive airway pressure device for lowering patient work-of-breathing is described. The device may include an inspiratory tubing in fluid communication with at least two nasal prongs; expiratory tubing; and a generator body coupled there between. The generator body may include at least two jets configured for receiving gas from the inspiratory tubing; and a flow enhancer configured for directing received gas. The flow enhancer may include a gas manager configured for channeling received gas towards a jet impingement point via at least two jet paths; a fluidic flip trigger configured for triggering a fluidic flip of channeled gas back towards the expiratory tubing by directing a first portion of exhaled patient breath towards the jet impingement point along a first pathway; and an isolated pathway manager configured for directing a second portion of the exhaled patient breath along a second pathway towards the expiratory tubing.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: August 26, 2014
    Assignee: Carefusion 303, Inc.
    Inventor: Khalid Mansour
  • Publication number: 20140158133
    Abstract: A portable nasal ventilation assembly and system having a nasal piece with fluid delivery ports which engage and occlude the nares of a patient and provides sustained oxygen saturations greater than 90% with lung afflictions requiring high-flows such as Pulmonary Fibrosis. The assembly is noninvasive and does not require the use of positive pressure machines that can only be used within the confines of a hospital intensive care unit. It can be used on patients with different respiratory problems. Patients on the system can be home while awaiting further hospital treatment, such as (for example) a lung transplant, for a fraction of the cost of a hospital stay. Although the system does not replace ventilator devices, it is effective for spontaneously breathing patients that require ventilators to maintain an adequate life sustaining oxygen level. The device allows for portability and can reduce hospital stay and cost dramatically.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Inventor: Olivia Frances Acosta
  • Publication number: 20140116443
    Abstract: An expiratory therapy device includes: a flow-adjusting member defining an upper chamber and a lower chamber and having an inner tube that defines an inner chamber and that is formed with wall openings; a driving member; an opening-controlling member including a cylindrical valve that is formed with wall apertures and that is driven by the driving member; and a flow rate-enhancing member including a venturi tube that is connected to the flow-adjusting member, that has an air entrainment port, and that is provided with a jet-forming member defining a venturi orifice. The flow rate-enhancing member generates the venturi effect, such that outside air is entrained into the venturi tube through the air entrainment port and flows into the upper chamber.
    Type: Application
    Filed: October 14, 2013
    Publication date: May 1, 2014
    Applicant: GALEMED CORPORATION
    Inventor: Gary C. J. LEE
  • Patent number: 8677999
    Abstract: Methods, systems and devices are described for providing mechanical ventilation support of a patient using an open airway patient interface. The system includes gas delivery circuit and patient interface configurations to optimize performance and efficiency of the ventilation system. A ventilation system may include a ventilator for supplying ventilation gas. A patient interface may include distal end in communication with a patient airway, a proximal end in communication with ambient air, and an airflow channel between the distal end and the proximal end. A gas delivery circuit may be adapted to attach to the patient interface without occluding the patient interface to allow ambient air to flow from outside the patient interface to the patient airway. The ventilation gas may entrain air from ambient and from the patient airway.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: March 25, 2014
    Assignee: Breathe Technologies, Inc.
    Inventors: Todd A. Allum, Anthony D. Wondka, Joseph Cipollone, Lutz Freitag
  • Publication number: 20140076320
    Abstract: An nCPAP device for assisting patient breathing includes a generator body forming an inlet, a chamber, and first and second flow circuits. The chamber directs pressurized gas from the inlet to the flow circuits. The flow circuits each include a nozzle, a channel, and at least one port. The nozzle emits a jet stream into the channel in a direction of a patient side thereof. The port fluidly connects the channel to ambient, and promotes entrainment of ambient air with the jet stream. In some embodiments, the channel forms a ramp feature directing exhaled air toward the jet stream in an angular fashion. The generator body requires reduced driving pressures to achieve target CPAP levels and reduces total imposed WOB as compared to conventional designs.
    Type: Application
    Filed: November 20, 2013
    Publication date: March 20, 2014
    Applicant: CareFusion 207, Inc.
    Inventors: Christopher M. Varga, Geoffrey C. Wise
  • Publication number: 20140053841
    Abstract: A breathing assistance device with improved pressure characteristics is disclosed. The device is capable of providing a high level of CPAP per unit of supplementary respirable gas consumed while maintaining low CPAP fluctuations throughout the breath cycle. The invention further optionally comprises a manometer for monitoring pressure and a safety pressure relief valve as additional safety measures against overpressure delivered to a patient. The device may be made to be completely disposable for one-time or single patient use.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 27, 2014
    Applicant: MERCURY ENTERPRISES, INC.
    Inventor: Jeffrey B. Ratner
  • Patent number: 8656909
    Abstract: A nozzle, for use in a fluid dispensing device, having a body defining a fluid flow channel which is shaped to impart acceleration and angular momentum to fluid passing therethrough, an inlet port formed in the body and defining an inlet to the channel, and an outlet port formed in the body and defining an outlet from the channel, wherein the fluid flow channel includes a swirl chamber having a plurality of swirl chamber segments, the swirl chamber being located between the channel inlet and the channel outlet, wherein the body is comprised of a mating assembly of a plurality of like component parts, each of the component parts providing one of the swirl chamber segments; wherein the fluid flow channel includes a plurality of inlets to the swirl chamber for feeding fluid into the swirl chamber and wherein each of the component parts provides one of the swirl chamber inlets; wherein the swirl chamber inlets are positioned to feed fluid into respectively different swirl chamber segments and wherein the swirl ch
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: February 25, 2014
    Assignee: Glaxo Group Limited
    Inventors: James William Godfrey, Mark Graham Hedley
  • Patent number: 8607794
    Abstract: An nCPAP device for assisting patient breathing includes a generator body forming an inlet, a chamber, and first and second flow circuits. The chamber directs pressurized gas from the inlet to the flow circuits. The flow circuits each include a nozzle, a channel, and at least one port. The nozzle emits a jet stream into the channel in a direction of a patient side thereof. The port fluidly connects the channel to ambient, and promotes entrainment of ambient air with the jet stream. In some embodiments, the channel forms a ramp feature directing exhaled air toward the jet stream in an angular fashion. The generator body requires reduced driving pressures to achieve target CPAP levels and reduces total imposed WOB as compared to conventional designs.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: December 17, 2013
    Assignee: CareFusion 207, Inc.
    Inventors: Christopher M. Varga, Geoffrey C. Wise
  • Patent number: 8608827
    Abstract: An oxygen generator includes a stationary unit and a portable unit. The portable unit includes a compressor, molecular sieves, controllable valves and an enriched gas storage chamber. The stationary unit includes a compressor having a greater capacity than a capacity of the portable compressor.
    Type: Grant
    Filed: November 21, 2009
    Date of Patent: December 17, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Bernhard Lewis Haberland, Joseph Thomas Dolenski, Jeremy Blair, Donald Kenneth Griffin, Marvin Norman Zeigler, Gerry Dean Richardson
  • Publication number: 20130312752
    Abstract: A system for reducing airway obstructions of a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle, and at least one spontaneous respiration sensor in communication with the control unit for detecting a respiration effort pattern and a need for supporting airway patency. The system may be open to ambient. The control unit may determine more than one gas output velocities. The more than one gas output velocities may be synchronized with different parts of a spontaneous breath effort cycle, and a gas output velocity may be determined by a need for supporting airway patency.
    Type: Application
    Filed: April 2, 2010
    Publication date: November 28, 2013
    Inventors: Gregory Kapust, Todd Allum, Anthony D. Wondka, Joseph Cipollone, Anthony Gerber, Darius Eghbal, Joey Aguirre, George A. Kassanis
  • Patent number: 8567400
    Abstract: An nCPAP device for assisting patient breathing includes a generator body forming an inlet, a chamber, and first and second flow circuits. The chamber directs pressurized gas from the inlet to the flow circuits. The flow circuits each include a first and second jets, a flow director and an exhaust conduit. The jets emit a jetstream into the flow director in a direction of a patient side thereof. In some embodiments, the flow director forms a first tapered wall section directing inhaled air toward the patient and a second tapered wall section directing exhaled air toward the exhaust conduit. The generator body requires reduced driving pressures to achieve target CPAP levels and reduces total imposed WOB as compared to conventional designs.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: October 29, 2013
    Assignee: CareFusion 207, Inc.
    Inventors: Khalid Mansour, Eric Porteous
  • Publication number: 20130263856
    Abstract: An intake module includes an outer tube body defining an intake chamber and having an intake end, and an inner tube body disposed in the outer tube body and having an intake hole communicating with the intake chamber. An intake lid covers the intake end and has an inlet hole for allowing the intake chamber to be in fluid communication with the outside so that a compressed gas is fed into the inlet hole. A needle tube defines a jet hole for spraying the compressed gas from the needle tube into the intake hole. When the compressed gas is delivered from the intake lid into the inner tube body, air is drawn into the intake hole to mix with the compressed gas according to Venturi effect.
    Type: Application
    Filed: January 7, 2013
    Publication date: October 10, 2013
    Applicant: GALEMED CORPORATION
    Inventors: Gary C.J. Lee, Ding-Yang Hsu
  • Publication number: 20130255683
    Abstract: A system for providing ventilation support to a patient may include a ventilator, a control unit, a gas delivery circuit with a proximal end in fluid communication with the ventilator and a distal end in fluid communication with a nasal interface, and a nasal interface. The nasal interface may include at least one jet nozzle at the distal end of the gas delivery circuit; and at least one spontaneous respiration sensor for detecting respiration in communication with the control unit. The system may be open to ambient. The control unit may receive signals from the at least one spontaneous respiration sensor and determine gas delivery requirements. The ventilator may deliver gas at a velocity to entrain ambient air and increase lung volume or lung pressure above spontaneously breathing levels to assist in work of breathing, and deliver ventilation gas in a cyclical delivery pattern synchronized with a spontaneous breathing pattern.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 3, 2013
    Inventors: Gregory Kapust, Joseph Cipollone, Anthony D. Wondka, Anthony Gerber, Todd Allum, Darius Eghbal, Joey Aguirre, George A. Kassanis
  • Patent number: 8528557
    Abstract: A continuous positive airway pressure system features a housing forming an airway chamber, and an air pressure inlet and an air pressure outlet. The housing further defines internally a pair of tapered air jets, and a pair of tapered air receivers. The air receivers are located downstream of the air supply jets and disposed coaxially with respective ones of the air supply jets. Each receiver has a taper in an opposite direction to the direction of the taper of the air supply jets. A pair of nasal prongs is located downstream of the air receiving jets.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: September 10, 2013
    Assignee: CareFusion 207, Inc.
    Inventors: Steven Duquette, Steve Han
  • Publication number: 20130199520
    Abstract: A patient interface system for delivering a gas to a patient includes a patient interface device that includes at least one inhalation valve and at least one exhalation valve. The system also includes a venturi device that has at least one port for connection to a gas source. The venturi device has at least one primary air entrainment window and at least one secondary air entrainment window which is downstream of the at least one primary air entrainment window. The inhalation valve is disposed between: (1) the main body and (2) the primary and secondary air entrainment windows of the venturi device. At least one of the primary air entrainment window and secondary air entrainment window includes a means for closing the respective window, thereby changing a degree at which the respective window is open and changing a flow rate of the air flowing through the respective window.
    Type: Application
    Filed: January 22, 2013
    Publication date: August 8, 2013
    Applicant: Aeon Research and Technology, LLC
    Inventor: Aeon Research and Technology, LLC
  • Publication number: 20130199535
    Abstract: A venturi connector includes a housing having a mixing chamber defined therein and at least one window that is in fluid communication with the mixing chamber and is open to atmosphere to allow air to be entrained into the mixing chamber. The connector includes a nozzle actuator member includes a body having a plurality of discrete nozzles formed therein. The nozzles are defined by different sized venturi orifices through which gas flows, thereby allowing the concentration of the gas delivered to the patient to be varied. The nozzle actuator member is disposed within one window formed in the housing between the gas port and the mixing chamber such that the position of the nozzle actuator member within the housing can be adjusted so as to position one of the discrete nozzles into the gas flow path, thereby controlling the flow rate of the gas into the mixing chamber and ultimately the concentration of gas delivered to the patient.
    Type: Application
    Filed: January 23, 2013
    Publication date: August 8, 2013
    Applicant: Aeon Research and Technology, LLC
    Inventor: Aeon Research and Technology, LLC
  • Patent number: 8474455
    Abstract: A system for circuit compliance compensated volume assurance pressure control in a patient respiratory ventilation circuit, having a patient circuit volume estimator for estimating a patient circuit compliance, a patient circuit volume estimator to estimate a circuit volume VOLCKT—EST based on the patient circuit compliance, a patient volume observer, for estimating a patient volume VOLTID—EST based on a measure delivered net volume VOLNET and the patient circuit compliance, a volume assurance controller for generating a circuit compliance volume compensation factor VOLTID—CTL based on a preset assured volume VOLASS—SET and the estimated patient volume VOLTID—EST, and a decelerating inspiratory flow controller, operative to generate a decelerating inspiratory peak flow based on a preset inspiratory time TINSP and the volume compensation factor VOLTID—CTL.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: July 2, 2013
    Assignee: CareFusion 207, Inc.
    Inventors: Ihab S. Soliman, Steven Duquette
  • Patent number: 8453644
    Abstract: A system and a method for circuit compliance compensated pressure control in a patient respiratory ventilation system, having a pressure regulated feedback servo control loop, a pressure-regulated volume controller, and a patient volume observer. The patient volume observer is operative to estimate a patient volume, that is, the volume actually delivered to the patient by accounting for volume deviation or loss caused by patient circuit leakage and valve dynamics. Based on the difference between the estimated patient volume and a set tidal volume, the pressure-regulated volume controller is operative to generate and update a circuit compliance pressure compensation factor. The pressure regulated feedback servo control loop is operative to modulate the peak airway pressure based on the circuit compliance pressure compensation factor, so as to achieve the set tidal volume while maintaining a constant inspiratory time and a constant I:E ratio.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: June 4, 2013
    Assignee: CareFusion 207, Inc.
    Inventors: Ihab S. Soliman, Steven Duquette
  • Patent number: 8448635
    Abstract: A discharge head 10 (in illustrated embodiments) for discharging droplets from discharge ports can withstand high water pressure and is provided with a first orifice plate 3 having first discharge ports 3a and a second orifice plate 6 having second discharge ports. The first orifice plate 3 and the second orifice plate 6 are separated from each other in the liquid discharge direction of the discharge head 10 and disposed opposite to each other. The diameter of the discharge ports of the second orifice plate 6 is smaller than the diameter of the discharge ports 3a of the first orifice plate 3 so that very fine droplets 9 are discharged from the discharge head 10 as the liquid discharged from the discharge ports 3a of the first orifice plate 3 is split by the second discharge ports.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: May 28, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Fukumoto, Masaya Kobayashi, Masaru Sugita
  • Publication number: 20130092165
    Abstract: A nasal cannula ventilation system is described for treating lung disease or for exercise conditioning, incorporating a Venturi system. The ventilation cannula comprises unique positioning features to positively locate a gas delivery nozzle in an optimal location to optimize Venturi performance, patient comfort and fitment to the patient. The cannula is low profile, making it as realistic to wear and use as a standard oxygen cannula, and is simple rending the cost reasonable. The ventilation cannula uses a simple low cost ventilator as a gas delivery control system which is compatible with existing gas sources. The system is used (1) during stationary use to unrest the respiratory muscles to increase tolerance to activity after a treatment session, or (2) to enable activity within a distance from a stationary gas source, (3) during ambulatory use using a portable gas source to enable mobility, and (4) for enhanced fitness conditioning.
    Type: Application
    Filed: September 26, 2012
    Publication date: April 18, 2013
    Inventor: Anthony D. Wondka