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: 11666725Abstract: A patient interface includes a shell with a central opening configured to receive the pressurized flow of air, a foam cushion, and an elastomeric support portion that is attached to the shell, supports the foam cushion, and forms at least part of a chamber together with the shell and the foam cushion. The elastomeric support portion includes a side wall that forms a continuous perimeter around the chamber and a resiliently flexible lip that supports the foam cushion and extends from the side wall toward an interior of the chamber. The resiliently flexible lip has an outer perimeter that is anchored to the side wall and an unsupported inner perimeter. The foam cushion overhangs the inner perimeter of the resiliently flexible lip, and the shell is more rigid than the elastomeric support portion. In addition, the foam cushion is configured to directly contact and engage a portion of the patient's skin in use.Type: GrantFiled: July 26, 2022Date of Patent: June 6, 2023Assignee: ResMed Pty LtdInventors: Michael Berthon-Jones, Michael Kassipillai Gunaratnam, Richard Sokolov, Robin Garth Hitchcock, David John Bassin, Gordon Joseph Malouf, Peter Edward Bateman, Philip Rodney Kwok
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Patent number: 11633562Abstract: A breathing arrangement includes a patient interface, at least one inlet conduit, and a headgear assembly. The patient interface includes a mouth covering assembly including a cushion structured to sealingly engage around 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, and a flexible element connecting the mouth covering assembly and the nozzle assembly. The at least one inlet conduit is structured to deliver breathable gas into at least one of the mouth covering assembly and the nozzle assembly for breathing by the patient. The headgear assembly is removably connected to at least one of the mouth covering assembly and the nozzle assembly so as to maintain the mouth covering assembly and the nozzle assembly in a desired position on the patient's face.Type: GrantFiled: January 19, 2022Date of Patent: April 25, 2023Assignee: ResMed Pty LtdInventors: 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: 11583652Abstract: 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: GrantFiled: December 15, 2021Date of Patent: February 21, 2023Assignee: ResMed Pty LtdInventors: 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: 11529489Abstract: 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: GrantFiled: July 9, 2021Date of Patent: December 20, 2022Assignee: ResMed Pty LtdInventors: 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: 11497876Abstract: 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: GrantFiled: June 8, 2018Date of Patent: November 15, 2022Assignee: ResMed Pty LtdInventors: 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: 20220355058Abstract: A patient interface includes a shell with a central opening configured to receive the pressurized flow of air, a foam cushion, and an elastomeric support portion that is attached to the shell, supports the foam cushion, and forms at least part of a chamber together with the shell and the foam cushion. The elastomeric support portion includes a side wall that forms a continuous perimeter around the chamber and a resiliently flexible lip that supports the foam cushion and extends from the side wall toward an interior of the chamber. The resiliently flexible lip has an outer perimeter that is anchored to the side wall and an unsupported inner perimeter. The foam cushion overhangs the inner perimeter of the resiliently flexible lip, and the shell is more rigid than the elastomeric support portion. In addition, the foam cushion is configured to directly contact and engage a portion of the patient's skin in use.Type: ApplicationFiled: July 26, 2022Publication date: November 10, 2022Inventors: Michael BERTHON-JONES, Michael Kassipillai GUNARATNAM, Richard SOKOLOV, Robin Garth HITCHCOCK, David John BASSIN, Gordon Joseph MALOUF, Peter Edward BATEMAN, Philip Rodney KWOK
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Patent number: 11433207Abstract: 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: GrantFiled: September 30, 2019Date of Patent: September 6, 2022Assignee: ResMed Pty LtdInventors: 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: 11420004Abstract: 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: GrantFiled: August 30, 2021Date of Patent: August 23, 2022Inventors: 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: 11406784Abstract: A patient interface assembly includes a cushion and frame assembly with a cushion portion and a frame portion that together form a breathing chamber. The frame portion includes an anterior aperture configured to receive the flow of breathable gas. Headgear includes a back portion, a pair of upper headgear straps extending from the back portion, and a pair of lower headgear straps. The patient interface assembly also includes a shroud in the form of a contoured plate. The shroud is removably mounted on the frame portion by way of a snap-fit connection and includes a pair of lower headgear connectors. The patient interface assembly also includes a forehead support extending from the shroud and having a free end with an upper headgear connector. The forehead support has a first curvature that curves in a first direction around an axis that is offset from the patient interface assembly and extends along a length of the forehead support.Type: GrantFiled: December 23, 2020Date of Patent: August 9, 2022Assignee: ResMed Pty LtdInventors: Michael Berthon-Jones, Michael Kassipillai Gunaratnam, Richard Sokolov, Robin Garth Hitchcock, David John Bassin, Gordon Joseph Malouf, Peter Edward Bateman, Philip Rodney Kwok
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Publication number: 20220134041Abstract: A breathing arrangement includes a patient interface, at least one inlet conduit, and a headgear assembly. The patient interface includes a mouth covering assembly including a cushion structured to sealingly engage around 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, and a flexible element connecting the mouth covering assembly and the nozzle assembly. The at least one inlet conduit is structured to deliver breathable gas into at least one of the mouth covering assembly and the nozzle assembly for breathing by the patient. The headgear assembly is removably connected to at least one of the mouth covering assembly and the nozzle assembly so as to maintain the mouth covering assembly and the nozzle assembly in a desired position on the patient's face.Type: ApplicationFiled: January 19, 2022Publication date: May 5, 2022Inventors: 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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Publication number: 20220105296Abstract: 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: December 15, 2021Publication date: April 7, 2022Inventors: 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: 20220105292Abstract: 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: July 9, 2021Publication date: April 7, 2022Inventors: 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: 11229762Abstract: A breathing arrangement includes a patient interface, at least one inlet conduit, and a headgear assembly. The patient interface includes a mouth covering assembly including a cushion structured to sealingly engage around 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, and a flexible element connecting the mouth covering assembly and the nozzle assembly. The at least one inlet conduit is structured to deliver breathable gas into at least one of the mouth covering assembly and the nozzle assembly for breathing by the patient. The headgear assembly is removably connected to at least one of the mouth covering assembly and the nozzle assembly so as to maintain the mouth covering assembly and the nozzle assembly in a desired position on the patient's face.Type: GrantFiled: September 29, 2020Date of Patent: January 25, 2022Assignee: ResMed Pty LtdInventors: 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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Publication number: 20210386953Abstract: 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: August 30, 2021Publication date: December 16, 2021Inventors: 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: 11103666Abstract: 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: GrantFiled: October 16, 2020Date of Patent: August 31, 2021Inventors: 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: 11090455Abstract: 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: GrantFiled: January 6, 2016Date of Patent: August 17, 2021Assignee: ResMed Pty LtdInventors: 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: 11077275Abstract: A breathing arrangement includes a patient interface, at least one inlet conduit, and a headgear assembly. The patient interface includes a mouth covering assembly including a cushion structured to sealingly engage around 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, and a flexible element connecting the mouth covering assembly and the nozzle assembly. The at least one inlet conduit is structured to deliver breathable gas into at least one of the mouth covering assembly and the nozzle assembly for breathing by the patient. The headgear assembly is removably connected to at least one of the mouth covering assembly and the nozzle assembly so as to maintain the mouth covering assembly and the nozzle assembly in a desired position on the patient's face.Type: GrantFiled: July 7, 2020Date of Patent: August 3, 2021Assignee: ResMed Pty LtdInventors: 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: 11077276Abstract: 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: GrantFiled: February 17, 2020Date of Patent: August 3, 2021Inventors: 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: 11071839Abstract: 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: GrantFiled: May 19, 2020Date of Patent: July 27, 2021Assignee: ResMed Pty LtdInventors: 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: 11000664Abstract: 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: GrantFiled: May 4, 2020Date of Patent: May 11, 2021Assignee: ResMed Pty LtdInventors: Michael Kassipillai Gunaratnam, Philip Rodney Kwok, Robin Garth Hitchcock, Lee James Veliss, Memduh Guney, Richard Sokolov, Perry David Lithgow, Donald Darkin, Susan Robyn Lynch