Patents by Inventor Michael Kassipillai Gunaratnam
Michael Kassipillai Gunaratnam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10307554Abstract: A comfortable low-leak mask assembly for use with Non-Invasive Positive Pressure Ventilation (NIPPV) is provided to improve patient compliance and/or treatment. The mask system may include headgear having straps that are substantially inextensible and/or micro-adjustable; and/or a mask and/or cushion that includes various structures to allow enhanced/tailored sealing and/or fit at selected locations on the patient's face.Type: GrantFiled: August 12, 2009Date of Patent: June 4, 2019Assignee: ResMed LimitedInventors: Michael Berthon-Jones, Peter Edward Bateman, Donald Darkin, Robin Garth Hitchcock, Philip James Jenkinson, Susan Robyn Lynch, Gordon Joseph Malouf, Patrick John McAuliffe, Milind Chandrakant Raje, Gary Christopher Robinson, Richard Sokolov, Philip Thomas Stallard, Michael Kassipillai Gunaratnam
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Publication number: 20190151594Abstract: A nasal assembly for delivering breathable gas to a patient includes a frame having an integrally formed first connector portion. A nozzle assembly includes a gusset or base portion and a pair of nozzles. At least one inlet conduit is structured to deliver breathable gas into the frame and nozzle assembly for breathing by the patient. A pair of second connector portions are removably and rotatably connected to respective first connector portions of the frame and are in communication with respective inlet conduits, e.g., directly or via angle connectors. A headgear assembly is removably connected to the pair of second connector portions and/or the angle connectors so as to maintain the frame and the nozzle assembly in a desired adjusted position on the patient's face.Type: ApplicationFiled: January 25, 2019Publication date: May 23, 2019Inventors: Michael Kassipillai Gunaratnam, Philip Rodney Kwok, Robin Garth Hitchcock, Lee James Veliss, Memduh Guney, Richard Sokolov, Perry David Lithgow, Donald Darkin, Susan Robyn Lynch
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Publication number: 20190134335Abstract: A breathing arrangement for use between a patient and a structure to deliver a breathable gas to the patient includes a patient interface including a mouth covering assembly including a cushion structured to sealingly engage around an exterior of a patient's mouth in use, a nozzle assembly including a pair of nozzles structured to sealingly engage within nasal passages of a patient's nose in use without forming a seal on a nasal bridge region of a patient's face, each of the nozzles including a dual wall construction including an inner wall and an outer wall that surrounds the inner wall, and a flexible element connecting the mouth covering assembly and the nozzle assembly.Type: ApplicationFiled: November 6, 2018Publication date: May 9, 2019Inventors: Aaron Samuel DAVIDSON, Michael Kassipillai GUNARATNAM, Susan Robyn LYNCH, Milind Chandrakant RAJE, Gary Christopher ROBINSON, Steven John LUBKE, Gregory Scott SMART, Philip Rodney KWOK, Rupert Christian SCHEINER
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Patent number: 10272223Abstract: The invention relates to a pressure responsive respiratory valve apparatus for enabling positive pressure from a source of pressure to be applied to a user's airway, and allowing ingress of a breathable gas from an inlet port into a user's airway during inhalation and egress of expired tidal volume of air from the user's respiratory system to an exhalation port during exhalation. The invention minimizes rebreathing of expired gas and optimizes delivery of pressurized breathable gas by venting gas only during exhalation, as well as addressing important user considerations including minimizing noise, pressure swing, and size.Type: GrantFiled: November 2, 2015Date of Patent: April 30, 2019Assignee: VENTIFIC HOLDINGS PTY LTDInventors: Michael David Hallett, Michael Kassipillai Gunaratnam, Allan Nils Gregersen
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Publication number: 20190105454Abstract: A breathing arrangement for use between a patient and a structure to deliver a breathable gas to the patient includes a patient interface including a mouth covering assembly including a cushion structured to sealingly engage around an exterior of a patient's mouth in use, a nozzle assembly including a pair of nozzles structured to sealingly engage within nasal passages of a patient's nose in use without forming a seal on a nasal bridge region of a patient's face, each of the nozzles including a dual wall construction including an inner wall and an outer wall that surrounds the inner wall, and a flexible element connecting the mouth covering assembly and the nozzle assembly.Type: ApplicationFiled: November 7, 2018Publication date: April 11, 2019Inventors: Aaron Samuel DAVIDSON, Michael Kassipillai GUNARATNAM, Susan Robyn LYNCH, Milind Chandrakant RAJE, Gary Christopher ROBINSON, Steven John LUBKE, Gregory Scott SMART, Philip Rodney KWOK, Rupert Christian SCHEINER
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Patent number: 10195385Abstract: A forehead pad for use in a respiratory mask with a forehead support, which includes a base portion to contact a user's forehead, a support post connected to the base portion, and a head adapted to connect the support post to a forehead support. A pair of forehead pads may be joined with a connector.Type: GrantFiled: March 18, 2015Date of Patent: February 5, 2019Assignee: ResMed LimitedInventors: Bernd Christoph Lang, Timothy Tsun-Fai Fu, Perry David Lithgow, Memduh Guney, Joanne Elizabeth Drew, Martin Bechtel, Achim Biener, Michael Kassipillai Gunaratnam, Aaron Samuel Davidson, Milind Chandrakant Raje
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Publication number: 20180289916Abstract: A nasal assembly for delivering breathable gas to a patient includes a frame having an integrally formed first connector portion. A nozzle assembly includes a gusset or base portion and a pair of nozzles. At least one inlet conduit is structured to deliver breathable gas into the frame and nozzle assembly for breathing by the patient. A pair of second connector portions are removably and rotatably connected to respective first connector portions of the frame and are in communication with respective inlet conduits, e.g., directly or via angle connectors. A headgear assembly is removably connected to the pair of second connector portions and/or the angle connectors so as to maintain the frame and the nozzle assembly in a desired adjusted position on the patient's face.Type: ApplicationFiled: June 8, 2018Publication date: October 11, 2018Inventors: Michael Kassipillai Gunaratnam, Philip Rodney Kwok, Robin Garth Hitchcock, Lee James Veliss, Memduh Guney, Richard Sokolov, Perry David Lithgow, Donald Darkin, Susan Robyn Lynch
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Patent number: 10039893Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame to support one of at least first and second compliant patient interfaces and a forehead support adjustably mounted to the frame. The forehead support is structured and configured to be moved between a first position for use with the first patient interface and a second position relative to the frame for use with a second patient interface, whereby the forehead support maintains a horizontal offset distance with the first and second patient interfaces which is substantially constant.Type: GrantFiled: April 28, 2016Date of Patent: August 7, 2018Assignee: ResMed LimitedInventors: Robert Henry Frater, Joanne Elizabeth Drew, Philip Rodney Kwok, Patrick John McAuliffe, Aaron Samuel Davidson, Robin Garth Hitchcock, Michael Kassipillai Gunaratnam, Donald Darkin, Gary Christopher Robinson
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Publication number: 20180193581Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a cushion. The cushion has a non-face contacting portion structured to be connected to the frame, a face-contacting portion structured to engage the patient's face, and a central portion that interconnects the non-face contacting portion and the face contacting portion. The frame may be structured to allow a forehead support to assume multiple positions, to compensate for replacement cushions that may have a different profile, shape or size. The cushion is structured to compensate for variations in strap tension, treatment pressure and/or movement of the patient. Headgear may be provided with a strap assembly in which one or more straps is provided with selectively adjustable elasticity or extensibility that may be automatically changed in dependence of treatment pressure and/or treatment type.Type: ApplicationFiled: March 9, 2018Publication date: July 12, 2018Inventors: Robert Henry FRATER, Joanne Elizabeth DREW, Philip Rodney KWOK, Patrick John McAULIFFE, Aaron Samuel DAVIDSON, Robin Garth HITCHCOCK, Michael Kassipillai GUNARATNAM, Donald DARKIN, Gary Christopher ROBINSON
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Patent number: 9999740Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and an elbow assembly. The frame has a front surface and a rear surface adapted in use to face the patient. The frame includes a main body providing an aperture therethrough for the introduction of breathable gas into a nasal breathing cavity. The elbow assembly is swivelably coupled to the front surface of the frame. The elbow assembly includes a swivel elbow that defines an intake port and an exhaust port separated from the intake port using a baffle. The elbow assembly includes an end portion that interfaces with the aperture of the frame.Type: GrantFiled: June 29, 2017Date of Patent: June 19, 2018Assignee: ResMed LimitedInventors: Michael Kassipillai Gunaratnam, Joanne Elizabeth Drew, Geoffrey Crumblin, Philip James Jenkinson, Susan Robyn Lynch
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Publication number: 20180140797Abstract: A connector arrangement joining a respiratory mask and headgear is adapted for single-handed disengagement by the patient. A first, rigid connector part is formed into the rigid mask frame, with a mating second connector attached to a strap of the headgear. The connectors are held away from the patient's face by the connection to the mask frame.Type: ApplicationFiled: January 17, 2018Publication date: May 24, 2018Inventors: Michael Kassipillai Gunaratnam, Philip Rodney Kwok
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Patent number: 9901701Abstract: A connector arrangement joining a respiratory mask and headgear is adapted for single-handed disengagement by the patient. A first, rigid connector part is formed into the rigid mask frame, with a mating second connector attached to a strap of the headgear. The connectors are held away from the patient's face by the connection to the mask frame.Type: GrantFiled: September 8, 2014Date of Patent: February 27, 2018Assignee: RESMED LIMITEDInventors: Michael Kassipillai Gunaratnam, Philip Rodney Kwok
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Patent number: 9814855Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and an elbow assembly. The frame has a front surface and a rear surface adapted in use to face the patient. The frame includes a main body providing an aperture therethrough for the introduction of breathable gas into a nasal breathing cavity. The elbow assembly is swivelably coupled to the front surface of the frame. The elbow assembly includes a swivel elbow that defines an intake port and an exhaust port separated from the intake port using a baffle. The elbow assembly includes an end portion that interfaces with the aperture of the frame.Type: GrantFiled: August 10, 2015Date of Patent: November 14, 2017Assignee: ResMed LimitedInventors: Michael Kassipillai Gunaratnam, Joanne Elizabeth Drew, Geoffrey Crumblin, Philip James Jenkinson, Susan Robyn Lynch
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Publication number: 20170296770Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and an elbow assembly. The frame has a front surface and a rear surface adapted in use to face the patient. The frame includes a main body providing an aperture therethrough for the introduction of breathable gas into a nasal breathing cavity. The elbow assembly is swivelably coupled to the front surface of the frame. The elbow assembly includes a swivel elbow that defines an intake port and an exhaust port separated from the intake port using a baffle. The elbow assembly includes an end portion that interfaces with the aperture of the frame.Type: ApplicationFiled: June 29, 2017Publication date: October 19, 2017Inventors: Michael Kassipillai GUNARATNAM, Joanne Elizabeth DREW, Geoffrey CRUMBLIN, Philip James JENKINSON, Susan Robyn LYNCH
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Publication number: 20170224944Abstract: A nasal assembly for delivering breathable gas to a patient includes a frame having an integrally formed first connector portion. A nozzle assembly includes a gusset or base portion and a pair of nozzles. At least one inlet conduit is structured to deliver breathable gas into the frame and nozzle assembly for breathing by the patient. A pair of second connector portions are removably and rotatably connected to respective first connector portions of the frame and are in communication with respective inlet conduits, e.g., directly or via angle connectors. A headgear assembly is removably connected to the pair of second connector portions and/or the angle connectors so as to maintain the frame and the nozzle assembly in a desired adjusted position on the patient's face.Type: ApplicationFiled: April 21, 2017Publication date: August 10, 2017Inventors: Michael Kassipillai GUNARATNAM, Philip Rodney KWOK, Robin Garth HITCHCOCK, Lee James VELISS, Memduh GUNEY, Richard SOKOLOV, Perry David LITHGOW, Donald DARKIN, Susan Robyn LYNCH
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Publication number: 20170143928Abstract: A headgear for a respiratory mask of a ventilator or CPAP device is provided. The headgear includes a strap portion formed of a substantially inextensible material. The strap portion has formed on one end thereof a connecting structure configured to connect to a mask of the ventilator or CPAP device. One advantage is that the mask will not or at least will be less inclined to lift off the face as mask pressure is increased.Type: ApplicationFiled: February 6, 2017Publication date: May 25, 2017Inventors: Michael BERTHON-JONES, Michael Kassipillai GUNARATNAM, Philip James JENKINSON, Gordon Joseph MALOUF
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Patent number: 9597473Abstract: A headgear for a respiratory mask of a ventilator or CPAP device is provided. The headgear includes a strap portion formed of a substantially inextensible material. The strap portion has formed on one end thereof a connecting structure configured to connect to a mask of the ventilator or CPAP device. One advantage is that the mask will not or at least will be less inclined to lift off the face as mask pressure is increased.Type: GrantFiled: August 30, 2013Date of Patent: March 21, 2017Assignee: ResMed LimitedInventors: Michael Berthon-Jones, Michael Kassipillai Gunaratnam, Peter Edward Bateman, Philip James Jenkinson, Gordon Joseph Malouf
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Publication number: 20170056611Abstract: A mask system for delivering air to a user includes a suspension mechanism to allow relative movement between a face-contacting cushion and a mask shell. The suspension mechanism also provides a predetermined force to the cushion that is a function of mask pressure, displacement of the cushion or both.Type: ApplicationFiled: November 9, 2016Publication date: March 2, 2017Inventors: Robert Henry FRATER, Joanne Elizabeth DREW, Michael Kassipillai GUNARATNAM
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Patent number: 9522246Abstract: A mask system for delivering air to a user includes a suspension mechanism to allow relative movement between a face-contacting cushion and a mask shell. The suspension mechanism also provides a predetermined force to the cushion that is a function of mask pressure, displacement of the cushion or both.Type: GrantFiled: February 6, 2015Date of Patent: December 20, 2016Assignee: ResMed LimitedInventors: Robert Henry Frater, Joanne Elizabeth Drew, Michael Kassipillai Gunaratnam
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Publication number: 20160235936Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame to support one of at least first and second compliant patient interfaces and a forehead support adjustably mounted to the frame. The forehead support is structured and configured to be moved between a first position for use with the first patient interface and a second position relative to the frame for use with a second patient interface, whereby the forehead support maintains a horizontal offset distance with the first and second patient interfaces which is substantially constant.Type: ApplicationFiled: April 28, 2016Publication date: August 18, 2016Inventors: Robert Henry FRATER, Joanne Elizabeth DREW, Philip Rodney KWOK, Patrick John McAULIFFE, Aaron Samuel DAVIDSON, Robin Garth HITCHCOCK, Michael Kassipillai GUNARATNAM, Donald DARKIN, Gary Christopher ROBINSON