Patents by Inventor Karthikeyan Selvarajan
Karthikeyan Selvarajan 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: 11890418Abstract: A system of breathing arrangements for delivering breathable gas to a patient includes at least first and second cushion components, e.g., full-face, nasal, nasal prongs, nose tip, and/or a combination of any of the above, including a nasal or full-face cushion and nasal prongs/nozzles combination, etc., that are different from one another in at least one aspect, and a common frame assembly configured to support each of the first and second cushion components. Various embodiments are directed to a full-face or nasal mask used with a frame having lateral connector portions having a stiffening member. The mask assembly may include a nose height adjustment device for the height of the cushion, or a cushion adjustment member by which the position of the cushion may be adjusted relative to the frame. The mask assembly may include a chin strap assembly.Type: GrantFiled: December 22, 2022Date of Patent: February 6, 2024Assignee: ResMed Pty LtdInventors: Eva Ng, Robert Edward Henry, Philip Rodney Kwok, Karthikeyan Selvarajan
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Publication number: 20230347084Abstract: A method of acclimatizing a user to provide continuous positive airway pressure (CPAP) therapy, including operating a device for treating sleep disordered breathing (SDB) during successive treatment sessions, wherein the device provides continuous positive airway pressure during sleep, includes determining a clinically-derived full therapeutic pressure, applying a sub-therapeutic treatment pressure for the duration of a first session, obtaining responses to a series of pre-programmed patient and/or bed partner feedback questions before the start of a second session and, based on the responses, either incrementally increasing the treatment pressure for the second session if the responses indicate that the patient is adjusting to therapy, or maintaining the treatment pressure for the second session if the responses do not indicate that the patient is adjusting to therapy.Type: ApplicationFiled: July 5, 2023Publication date: November 2, 2023Inventors: Philip Rodney KWOK, Ron RICHARD, Rohan MULLINS, Chee Keong PHUAH, Karthikeyan SELVARAJAN, Adrian BARNES, Thomas Evan MILLER, David Richard VORREITER
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Publication number: 20230270965Abstract: A patient interface for delivering breathable gas to a patient includes a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use and headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support.Type: ApplicationFiled: May 5, 2023Publication date: August 31, 2023Inventors: Memduh GUNEY, Rupert Christian SCHEINER, David Anthony PIDCOCK, Gerard Michael RUMMERY, Matthew EVES, Craig David EDWARDS, Melanie Lucia CARIOLA, Muditha Pradeep DANTANARAYANA, Michael Fu Pin CHEN, Christopher Scott SKIPPER, Karthikeyan SELVARAJAN, Steven John LUBKE, Bruce David GREGORY, Joel Edward GIBSON, Andrew David CAMERON, Philip Rodney KWOK
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Patent number: 11730906Abstract: A method of acclimatizing a patient to provide continuous positive airway pressure (CPAP) therapy, including operating a device for treating sleep disordered breathing (SDB). The device provides continuous positive airway pressure to the patient during sleep via a mask configured to provide a seal with respect to airways of the patient. The method comprises applying full therapeutic pressure during a first session, monitoring a mask pressure during application of the full therapeutic pressure, calculating a difference between the full therapeutic pressure and the mask pressure, comparing the difference to a threshold representing an acceptable level of leak, generating a first signal in response to said comparing, and in response to said first signal indicating a fault in the seal, decreasing an applied pressure to below the full therapeutic pressure during the first session in order to improve the seal of the mask against the patient's face.Type: GrantFiled: September 30, 2020Date of Patent: August 22, 2023Assignee: ResMed Pty Ltd.Inventors: Philip Rodney Kwok, Ron Richard, Rohan Mullins, Chee Keong Phuah, Karthikeyan Selvarajan, Adrian Barnes, Thomas Evan Miller, David Richard Vorreiter
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Patent number: 11660415Abstract: A patient interface for delivering breathable gas to a patient includes a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use and headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support.Type: GrantFiled: August 17, 2022Date of Patent: May 30, 2023Assignee: ResMed Pty LtdInventors: Memduh Guney, Rupert Christian Scheiner, David Anthony Pidcock, Gerard Michael Rummery, Matthew Eves, Craig David Edwards, Melanie Lucia Cariola, Muditha Pradeep Dantanarayana, Michael Fu Pin Chen, Christopher Scott Skipper, Karthikeyan Selvarajan, Steven John Lubke, Bruce David Gregory, Joel Edward Gibson, Andrew David Cameron, Philip Rodney Kwok
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Patent number: 11642484Abstract: A patient interface for delivering breathable gas to a patient includes a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use and headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support.Type: GrantFiled: May 12, 2020Date of Patent: May 9, 2023Assignee: ResMed Pty LtdInventors: Memduh Guney, Rupert Christian Scheiner, David Anthony Pidcock, Gerard Michael Rummery, Matthew Eves, Craig David Edwards, Melanie Lucia Cariola, Muditha Pradeep Dantanarayana, Michael Fu Pin Chen, Christopher Scott Skipper, Karthikeyan Selvarajan, Steven John Lubke, Bruce David Gregory, Joel Edward Gibson, Andrew David Cameron, Philip Rodney Kwok
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Publication number: 20230128156Abstract: A system of breathing arrangements for delivering breathable gas to a patient includes at least first and second cushion components, e.g., full-face, nasal, nasal prongs, nose tip, and/or a combination of any of the above, including a nasal or full-face cushion and nasal prongs/nozzles combination, etc., that are different from one another in at least one aspect, and a common frame assembly configured to support each of the first and second cushion components. Various embodiments are directed to a full-face or nasal mask used with a frame having lateral connector portions having a stiffening member. The mask assembly may include a nose height adjustment device for the height of the cushion, or a cushion adjustment member by which the position of the cushion may be adjusted relative to the frame. The mask assembly may include a chin strap assembly.Type: ApplicationFiled: December 22, 2022Publication date: April 27, 2023Inventors: Eva NG, Robert Edward HENRY, Philip Rodney KWOK, Karthikeyan SELVARAJAN
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Publication number: 20230082745Abstract: A nasal prong (230) for sealing with a nasal passage of a patient includes a head portion (235) structured to seal and/or sealingly communicate with the patient's nasal passage and a column or stalk structured to interconnect the head portion with a base. The head portion (235) is configured to direct gas in use away from the septum and/or posteriorly relative to the nasal passage.Type: ApplicationFiled: October 19, 2022Publication date: March 16, 2023Inventors: Karthikeyan SELVARAJAN, David Rae GALE, Robin Garth HITCHCOCK, Muditha Pradeep DANTANARAYANA
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Patent number: 11596757Abstract: A system of breathing arrangements for delivering breathable gas to a patient includes at least first and second cushion components, e.g., full-face, nasal, nasal prongs, nose tip, and/or a combination of any of the above, including a nasal or full-face cushion and nasal prongs/nozzles combination, etc., that are different from one another in at least one aspect, and a common frame assembly configured to support each of the first and second cushion components. Various embodiments are directed to a full-face or nasal mask used with a frame having lateral connector portions having a stiffening member. The mask assembly may include a nose height adjustment device for the height of the cushion, or a cushion adjustment member by which the position of the cushion may be adjusted relative to the frame. The mask assembly may include a chin strap assembly.Type: GrantFiled: June 23, 2021Date of Patent: March 7, 2023Assignee: ResMed Pty LtdInventors: Eva Ng, Robert Edward Henry, Philip Rodney Kwok, Karthikeyan Selvarajan
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Publication number: 20220387743Abstract: A patient interface for delivering breathable gas to a patient includes a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use and headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support.Type: ApplicationFiled: August 17, 2022Publication date: December 8, 2022Inventors: Memduh GUNEY, Rupert Christian SCHEINER, David Anthony PIDCOCK, Gerard Michael RUMMERY, Matthew EVES, Craig David EDWARDS, Melanie Lucia CARIOLA, Muditha Pradeep DANTANARAYANA, Michael Fu Pin CHEN, Christopher Scott SKIPPER, Karthikeyan SELVARAJAN, Steven John LUBKE, Bruce David GREGORY, Joel Edward GIBSON, Andrew David CAMERON, P'hilip Rodney KWOK
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Patent number: 11517698Abstract: A nasal prong (230) for sealing with a nasal passage of a patient includes a head portion (235) structured to seal and/or sealingly communicate with the patient's nasal passage and a column or stalk structured to interconnect the head portion with a base. The head portion (235) is configured to direct gas in use away from the septum and/or posteriorly relative to the nasal passage.Type: GrantFiled: March 28, 2018Date of Patent: December 6, 2022Assignee: ResMed Pty LtdInventors: Karthikeyan Selvarajan, David Rae Gale, Robin Garth Hitchcock, Muditha Pradeep Dantanarayana
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Publication number: 20220379063Abstract: A respiratory mask for continuous positive airway pressure treatment includes a cushion adapted to be positioned against the face of a patient. The cushion is configured in a gasket arrangement around an entrance to the airways of the patient. The cushion is constructed from a polyurethane foam and has a thickness of greater than about 5 mm.Type: ApplicationFiled: August 12, 2022Publication date: December 1, 2022Inventors: Lee James VELISS, Scott Douglas BRACKENREG, Fiona Catherine CARROLL, David Mark GILLIVER, Bruce David GREGORY, Joshua Adam GUDIKSEN, Philip John GUNNING, Robert Edward HENRY, Philip Rodney KWOK, Gregory Robert PEAKE, Gerard Michael RUMMERY, Karthikeyan SELVARAJAN, Clive SOLARI, Jamie Graeme WEHBEH
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Patent number: 11464930Abstract: A mask system including a frame module and a cushion module provided to the frame module and adapted to form a seal with the patient's face. The cushion module includes a main body defining a breathing chamber and adapted to interface with the frame module and a cushion adapted to form a seal with the patient's face. The main body and the cushion are comolded with one another.Type: GrantFiled: January 20, 2022Date of Patent: October 11, 2022Assignee: ResMed Pty LtdInventors: Scott Alexander Howard, Karthikeyan Selvarajan, Christopher Scott Skipper
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Patent number: 11452834Abstract: A patient interface for delivering breathable gas to a patient includes a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use and headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support.Type: GrantFiled: March 8, 2022Date of Patent: September 27, 2022Assignee: ResMed Pty LtdInventors: Memduh Guney, Rupert Christian Scheiner, David Anthony Pidcock, Gerard Michael Rummery, Matthew Eves, Craig David Edwards, Melanie Lucia Cariola, Muditha Pradeep Dantanarayana, Michael Fu Pin Chen, Christopher Scott Skipper, Karthikeyan Selvarajan, Steven John Lubke, Bruce David Gregory, Joel Edward Gibson, Andrew David Cameron, Philip Rodney Kwok
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Publication number: 20220296839Abstract: A respiratory mask, a mould for a respiratory mask, as well as to a method for producing a respiratory mask are disclosed, in which manufacturability and usability of respiratory masks are improved. A respiratory mask is disclosed for administering a breathable gas to a patient, the respiratory mask comprising a first component formed from a flexible material and a second component formed from a material that is more rigid than the flexible material, wherein the first component is formed onto the second component by an overmoulding process.Type: ApplicationFiled: June 7, 2022Publication date: September 22, 2022Inventors: Johann Sebastian BURZ, Achim BIENER, Bernd Christoph LANG, Philip Rodney KWOK, Karthikeyan SELVARAJAN, Robert Edward HENRY
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Patent number: 11446461Abstract: A respiratory mask for continuous positive airway pressure treatment includes a cushion adapted to be positioned against the face of a patient. The cushion is configured in a gasket arrangement around an entrance to the airways of the patient. The cushion is constructed from a polyurethane foam and has a thickness of greater than about 5 mm.Type: GrantFiled: November 16, 2018Date of Patent: September 20, 2022Assignee: ResMed Pty LtdInventors: Lee James Veliss, Scott Douglas Brackenreg, Fiona Catherine Carroll, David Mark Gilliver, Bruce David Gregory, Joshua Adam Gudiksen, Philip John Gunning, Robert Edward Henry, Philip Rodney Kwok, Gregory Robert Peake, Gerard Michael Rummery, Karthikeyan Selvarajan, Clive Solari, Jamie Graeme Wehbeh
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Patent number: 11376384Abstract: An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.Type: GrantFiled: May 16, 2019Date of Patent: July 5, 2022Assignee: ResMed Pty LtdInventors: Philip Rodney Kwok, Lee James Veliss, Philip John Gunning, Robert Edward Henry, Gregory Robert Peake, Bruce David Gregory, Karthikeyan Selvarajan, Clive Solari, Scott Douglas Brackenreg, David Mark Gilliver
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Publication number: 20220193362Abstract: A patient interface for delivering breathable gas to a patient includes a nasal prong assembly including a pair of nasal prongs structured to sealingly communicate with nasal passages of a patient's nose in use and headgear to maintain the nasal prong assembly in a desired position on the patient's face. The headgear includes side straps and rigidizers provided to respective side straps. Each rigidizer includes a first end portion that provides a connector structured to engage a respective end of the nasal prong assembly and an inwardly curved protrusion in the form of a cheek support that curves inwardly of the connector. The cheek support is adapted to follow the contour of the patient's cheek and guide a respective end portion of the side strap into engagement with the patient's cheek to provide a stable cheek support.Type: ApplicationFiled: March 8, 2022Publication date: June 23, 2022Inventors: Memduh GUNEY, Rupert Christian SCHEINER, David Anthony PIDCOCK, Gerard Michael RUMMERY, Matthew EVES, Craig David EDWARDS, Melanie Lucia CARIOLA, Muditha Pradeep DANTANARAYANA, Michael Fu Pin CHEN, Christopher Scott SKIPPER, Karthikeyan SELVARAJAN, Steven John LUBKE, Bruce David GREGORY, Joel Edward GIBSON, Andrew David CAMERON, Philip Rodney KWOK
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Publication number: 20220143347Abstract: A mask system including a frame module and a cushion module provided to the frame module and adapted to form a seal with the patient's face. The cushion module includes a main body defining a breathing chamber and adapted to interface with the frame module and a cushion adapted to form a seal with the patient's face. The main body and the cushion are comolded with one another.Type: ApplicationFiled: January 20, 2022Publication date: May 12, 2022Inventors: Scott Alexander HOWARD, Karthikeyan SELVARAJAN, Christopher Scott SKIPPER
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Publication number: 20210316101Abstract: A system of breathing arrangements for delivering breathable gas to a patient includes at least first and second cushion components, e.g., full-face, nasal, nasal prongs, nose tip, and/or a combination of any of the above, including a nasal or full-face cushion and nasal prongs/nozzles combination, etc., that are different from one another in at least one aspect, and a common frame assembly configured to support each of the first and second cushion components. Various embodiments are directed to a full-face or nasal mask used with a frame having lateral connector portions having a stiffening member. The mask assembly may include a nose height adjustment device for the height of the cushion, or a cushion adjustment member by which the position of the cushion may be adjusted relative to the frame. The mask assembly may include a chin strap assembly.Type: ApplicationFiled: June 23, 2021Publication date: October 14, 2021Inventors: Eva NG, Robert Edward HENRY, Philip Rodney KWOK, Karthikeyan SELVARAJAN