Patents by Inventor Dexter Chi Lun Cheung
Dexter Chi Lun Cheung 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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Publication number: 20240115829Abstract: There is disclosed system for oxygenating a patient in relation to anaesthesia using high flow gas delivery. The system has a flow source, and a controller for determining oxygenation requirements of the patient before or during anaesthesia. A method of oxygenating a patient in relation to anaesthesia using high flow gas delivery is also disclosed. The method determines oxygenation requirements of the patient before or during anaesthesia.Type: ApplicationFiled: August 22, 2023Publication date: April 11, 2024Inventors: Matthew Jon Payton, Alicia Jerram Hunter Evans, Thomas Henrich Barnes, Dexter Chi Lun Cheung, Craig Karl White, Anthony Brendan Williams, Laurence Gulliver, Michael Barraclough, Jonathan Mark Church, Jonathan David Harwood, Samantha Dale Oldfield, Callum James Thomas Spence, Milanjot Singh Assi
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Publication number: 20240108844Abstract: A humidification system can include a heater base, a humidification chamber, and a breathing circuit. A cartridge can be removably coupled to the heater base. The cartridge can include various sensors, probes, sensor wire connectors, heater wire connectors, and/or other features. The cartridge can include features configured to mate with corresponding features on the humidification chamber and the heater base. The cartridge includes a memory, such as an EEPROM, or other suitable storage device. When the cartridge is installed on the heater base, the memory is electrically connected to a processor and/or memory of the heater base. Various models of cartridges can be produced for use with different humidification chambers, breathing circuits, and/or therapies. A connector can be configured to couple an inspiratory conduit to an outlet port of the humidification chamber. The connector can provide a pneumatic connection to the outlet port and an electrical connection to the cartridge.Type: ApplicationFiled: September 20, 2023Publication date: April 4, 2024Inventors: Hamish Adrian OSBORNE, Gavin Walsh Millar, Stephen David Evans, Bruce Gordon Holyoake, James William Stanton, David Leon McCauley, Gareth Thomas McDermott, Nicholas James Michael McKenna, Myfanwy Jane Antica Norton, Adrian John Elsworth, Michael John Andresen, Jonathan Andrew George Lambert, Sandeep Singh Gurm, Tessa Hazel Paris, Joseph Nathaniel Griffiths, Ping Si, Christopher Gareth Sims, Elmo Benson Stoks, Dexter Chi Lun Cheung, Peter Alan Seekup, Po-Yen Liu, Richard Edward Lang, Paul James Tonkin, Ian Lee Wai Kwan
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Patent number: 11904097Abstract: The invention relates to a respiratory system comprising a first patient interface for delivery of a first flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device and/or sensing arrangement that is configure to facilitate a switching of the system between a first respiratory mode where the device allowing delivery of the first flow of gases to an outlet of the first patient interface when the second patient interface is absent from the patient, and a second respiratory mode where the device reducing or stopping delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient.Type: GrantFiled: June 10, 2020Date of Patent: February 20, 2024Assignee: Fisher & Paykel Healthcare LimitedInventors: Bruce Gordon Holyoake, Dexter Chi Lun Cheung, Anil Patel, Seyed Ahmad Reza Nouraei, Milanjot Singh Assi, Thomas Heinrich Barnes, Alicia Jerram Hunter Evans, Craig Karl White, Matthew John Payton, Laith Adeeb Hermez, German Klink, Samantha Dale Oldfield, Taylor James Edwards, Aidan Robert Burgess
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Patent number: 11801360Abstract: A humidification system can include a heater base, a humidification chamber, and a breathing circuit. A cartridge can be removably coupled to the heater base. The cartridge can include various sensors, probes, sensor wire connectors, heater wire connectors, and/or other features. The cartridge can include features configured to mate with corresponding features on the humidification chamber and the heater base. The cartridge includes a memory, such as an EEPROM, or other suitable storage device. When the cartridge is installed on the heater base, the memory is electrically connected to a processor and/or memory of the heater base. Various models of cartridges can be produced for use with different humidification chambers, breathing circuits, and/or therapies. A connector can be configured to couple an inspiratory conduit to an outlet port of the humidification chamber. The connector can provide a pneumatic connection to the outlet port and an electrical connection to the cartridge.Type: GrantFiled: February 8, 2019Date of Patent: October 31, 2023Assignee: Fisher & Paykel Healthcare LimitedInventors: Hamish Adrian Osborne, Gavin Walsh Millar, Stephen David Evans, Bruce Gordon Holyoake, James William Stanton, David Leon McCauley, Gareth Thomas McDermott, Nicholas James Michael McKenna, Myfanwy Jane Antica Norton, Adrian John Elsworth, Michael John Andresen, Jonathan Andrew George Lambert, Sandeep Singh Gurm, Tessa Hazel Paris, Joseph Nathaniel Griffiths, Ping Si, Christopher Gareth Sims, Elmo Benson Stoks, Dexter Chi Lun Cheung, Peter Alan Seekup, Po-Yen Liu, Richard Edward Lang, Paul James Tonkin, Ian Lee Wai Kwan
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Publication number: 20230173208Abstract: A method of determining a duration of safe apnoea. Information is obtained relating to a respiratory indicator, and a duration of safe apnoea is determined from the obtained information. A respiratory therapy system has one or more patient interfaces. A processor is configured to determine a duration of safe apnoea based on obtained information relating to a respiratory indicator.Type: ApplicationFiled: October 10, 2022Publication date: June 8, 2023Inventors: Alicia Jerram Hunter Evans, Samantha Dale Oldfield, Michael Robert Barraclough, Dexter Chi Lun Cheung, Callum James Thomas Spence, Milanjot Singh Assi, Hamish Adrian Osborne, Thomas Heinrich Barnes, Matthew Jon Payton, Craig Karl White
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Publication number: 20230147017Abstract: An apparatus or kit for a respiratory support system for delivering humidified gas to a user or patient. The apparatus comprising a humidifier chamber in pneumatic communication with a gases source, an inspiratory conduit in pneumatic communication with the humidifier chamber downstream of the humidifier chamber, a filter that is in pneumatic communication with the inspiratory conduit downstream of the inspiratory conduit, and a patient interface for delivering humidified gas to a user or patient, wherein the patient interface is in pneumatic communication with the filter downstream of the filter, or is configured to be placed in pneumatic communication with the filter downstream of the filter.Type: ApplicationFiled: August 12, 2022Publication date: May 11, 2023Inventors: Bruce Gordon Holyoake, Samantha Dale Oldfield, Alicia Jerram Hunter Evans, Callum James Thomas Spence, Craig Karl White, Dexter Chi Lun Cheung, Matthew Jon Payton, Michael Robert Barraclough, Daniel John Smith, Kevin Blake Powell
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Publication number: 20230009531Abstract: The disclosure relates to a nasal cannula comprising a port configured for delivery of a medicament into a flow of a fluid being delivered by the nasal cannula to a user and/or configured for interfacing with a medicament delivery device or an instrument. The disclosure also relates to a nasal cannula comprising an asymmetric profile to reduce an amount of occlusion of one nare of a user to provide access for an instrument to the nare with the nasal cannula in use.Type: ApplicationFiled: June 23, 2022Publication date: January 12, 2023Inventors: Alicia Jerram Hunter Evans, Craig Karl White, Samantha Dale Oldfield, Milanjot Singh Assi, Erik Robertus Scheirlinck, Callum James Thomas Spence, Laurence Gulliver, Dexter Chi Lun Cheung, Michael Robert Barraclough, Matthew Jon Payton
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Publication number: 20220339390Abstract: A breathing circuit for delivering heated, humidified gases to a patient for medical purposes is described, comprising a humidifier chamber holding a quantity of water, a blower unit that delivers a pressurized gases stream to the chamber inlet, and a control system that adjusts output parameters of the breathing circuit, the circuit including a heater plate which heats the water in the chamber so that gases flowing through the chamber become heated and humidified, the circuit also including a gases transportation pathway and patient interface to convey heated humidified gases to a patient, the gases transportation pathway including an RFID tag located at the patient end which senses a parameter of the gases passing through the pathway, the control system including an RFID interrogator interrogating and receiving data relating to the sensed parameter from the RFID tag in real time, and adjusting the output parameters of the breathing circuit accordingly.Type: ApplicationFiled: May 4, 2022Publication date: October 27, 2022Inventors: Andrew Robert Donald Somervell, Nordyn Alami, Dexter Chi Lun Cheung, Christopher Simon James Quill, Matthew Jon Payton
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Patent number: 11471627Abstract: A method of determining a duration of safe apnoea. Information is obtained relating to a respiratory indicator, and a duration of safe apnoea is determined from the obtained information. A respiratory therapy system has one or more patient interfaces. A processor is configured to determine a duration of safe apnoea based on obtained information relating to a respiratory indicator.Type: GrantFiled: April 5, 2018Date of Patent: October 18, 2022Assignee: Fisher & Paykel Healthcare LimitedInventors: Alicia Jerram Hunter Evans, Samantha Dale Oldfield, Michael Robert Barraclough, Dexter Chi Lun Cheung, Callum James Thomas Spence, Milanjot Singh Assi, Hamish Adrian Osborne, Thomas Heinrich Barnes, Matthew Jon Payton, Craig Karl White
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Publication number: 20220323704Abstract: A user interface convertible between a nasal configuration and an oral configuration. The user interface has a nasal cannula and a mouthpiece. The nasal cannula has a body portion and at least one prong extending from the body portion, the prong being adapted to direct a flow of gas into a nare of a user's nose. The mouthpiece is adapted to engage the mouth of the patient and direct a flow of gas into a user's mouth. In the nasal configuration the prong of the nasal cannula is adapted to direct a flow of gases into a nare of the patient. In the oral configuration, the nasal cannula is engaged with the mouthpiece such that a gases flow is provided to at least the mouth of the user.Type: ApplicationFiled: February 15, 2022Publication date: October 13, 2022Inventors: Michael Robert Barraclough, Matthew Jon Payton, Callum James Thomas Spence, Laurence Gulliver, Samantha Dale Oldfield, Dexter Chi Lun Cheung, Geraldine Frances Keogh, Milanjot Singh Assi, Alicia Jerram Hunter Evans, Craig Karl White
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Patent number: 11446462Abstract: An apparatus or kit for a respiratory support system for delivering humidified gas to a user or patient. The apparatus comprising a humidifier chamber in pneumatic communication with a gases source, an inspiratory conduit in pneumatic communication with the humidifier chamber downstream of the humidifier chamber, a filter that is in pneumatic communication with the inspiratory conduit downstream of the inspiratory conduit, and a patient interface for delivering humidified gas to a user or patient, wherein the patient interface is in pneumatic communication with the filter downstream of the filter, or is configured to be placed in pneumatic communication with the filter downstream of the filter.Type: GrantFiled: March 31, 2016Date of Patent: September 20, 2022Assignee: Fisher & Paykel Healthcare LimitedInventors: Bruce Gordon Holyoake, Samantha Dale Oldfield, Alicia Jerram Hunter Evans, Callum James Thomas Spence, Craig Karl White, Dexter Chi Lun Cheung, Matthew Jon Payton, Michael Robert Barraclough, Daniel John Smith, Kevin Blake Powell
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Patent number: 11420002Abstract: The disclosure relates to a nasal cannula comprising a port configured for delivery of a medicament into a flow of a fluid being delivered by the nasal cannula to a user and/or configured for interfacing with a medicament delivery device or an instrument. The disclosure also relates to a nasal cannula comprising an asymmetric profile to reduce an amount of occlusion of one nare of a user to provide access for an instrument to the nare with the nasal cannula in use.Type: GrantFiled: March 31, 2016Date of Patent: August 23, 2022Assignee: Fisher & Paykel Healthcare LimitedInventors: Alicia Jerram Hunter Evans, Craig Karl White, Samantha Dale Oldfield, Milanjot Singh Assi, Erik Robertus Scheirlinck, Callum James Thomas Spence, Laurence Gulliver, Dexter Chi Lun Cheung, Michael Robert Barraclough, Matthew Jon Payton
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Publication number: 20220249788Abstract: A system for humidifying respiratory gases has a humidification apparatus, a humidification chamber, a heating apparatus and a sensor. The sensor is configured to determine a characteristic of the gases flow and communicate this to a controller which controls the power supplied to the heating apparatus with respect to information regarding the characteristic of the gases flow. A structure partially encloses the humidification chamber and allows energy loss through a wall of the humidification chamber. The humidification chamber may have features to promote heat loss through the wall of the chamber.Type: ApplicationFiled: February 28, 2022Publication date: August 11, 2022Inventors: Laith Adeeb Hermez, Stephen David Evans, Hamish Adrian Osborne, Michael John Andresen, Anthony James Newland, Dexter Chi Lun Cheung
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Publication number: 20220176063Abstract: A respiratory humidification system includes a humidifier that is capable of electronic communication with one or more other components of the system thereby permitting transfer of data or control signals between the humidifier and other components of the system. In some systems, a flow generator, such as a ventilator, is provided to supply a flow of breathing gas. The humidifier and the flow generator are capable of electronic communication with one another. In some arrangements, an operating mode or parameter of the humidifier to be set or confirmed by the flow generator, either automatically or manually through a user interface of the flow generator. The humidifier can also utilize data provided by the flow generator or other system component, such as an incubator, to set or confirm an operating mode or parameter of the humidifier. In some arrangements, a user interface of the humidifier can display data from another system component, such as a nebulizer or pulse oximeter.Type: ApplicationFiled: December 15, 2021Publication date: June 9, 2022Inventors: Dexter Chi Lun Cheung, Matthew Jon Payton, Peter Alan Seekup
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Patent number: 11351328Abstract: A breathing circuit for delivering heated, humidified gases to a patient for medical purposes is described, comprising a humidifier chamber holding a quantity of water, a blower unit that delivers a pressurized gases stream to the chamber inlet, and a control system that adjusts output parameters of the breathing circuit, the circuit including a heater plate which heats the water in the chamber so that gases flowing through the chamber become heated and humidified, the circuit also including a gases transportation pathway and patient interface to convey heated humidified gases to a patient, the gases transportation pathway including an RFID tag located at the patient end which senses a parameter of the gases passing through the pathway, the control system including an RFID interrogator interrogating and receiving data relating to the sensed parameter from the RFID tag in real time, and adjusting the output parameters of the breathing circuit accordingly.Type: GrantFiled: October 10, 2018Date of Patent: June 7, 2022Assignee: Fisher & Paykel Healthcare LimitedInventors: Andrew Robert Donald Somervell, Nordyn Alami, Dexter Chi Lun Cheung, Christopher Simon James Quill, Matthew Jon Payton
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Patent number: 11298494Abstract: A user interface convertible between a nasal configuration and an oral configuration. The user interface has a nasal cannula and a mouthpiece. The nasal cannula has a body portion and at least one prong extending from the body portion, the prong being adapted to direct a flow of gas into a nare of a user's nose. The mouthpiece is adapted to engage the mouth of the patient and direct a flow of gas into a user's mouth. In the nasal configuration the prong of the nasal cannula is adapted to direct a flow of gases into a nare of the patient. In the oral configuration, the nasal cannula is engaged with the mouthpiece such that a gases flow is provided to at least the mouth of the user.Type: GrantFiled: March 31, 2016Date of Patent: April 12, 2022Assignee: Fisher & Paykel Healthcare LimitedInventors: Michael Robert Barraclough, Matthew Jon Payton, Callum James Thomas Spence, Laurence Gulliver, Samantha Dale Oldfield, Dexter Chi Lun Cheung, Geraldine Frances Keogh, Milanjot Singh Assi, Alicia Jerram Hunter Evans, Craig Karl White
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Patent number: 11278689Abstract: A system for humidifying respiratory gases has a humidification apparatus, a humidification chamber, a heating apparatus and a sensor. The sensor is configured to determine a characteristic of the gases flow and communicate this to a controller which controls the power supplied to the heating apparatus with respect to information regarding the characteristic of the gases flow. A structure partially encloses the humidification chamber and allows energy loss through a wall of the humidification chamber. The humidification chamber may have features to promote heat loss through the wall of the chamber.Type: GrantFiled: November 17, 2015Date of Patent: March 22, 2022Assignee: Fisher & Paykel Healthcare LimitedInventors: Laith Adeeb Hermez, Stephen David Evans, Hamish Osborne, Michael John Andresen, Anthony James Newland, Dexter Chi Lun Cheung
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Patent number: 11229764Abstract: A respiratory humidification system includes a humidifier that is capable of electronic communication with one or more other components of the system thereby permitting transfer of data or control signals between the humidifier and other components of the system. In some systems, a flow generator, such as a ventilator, is provided to supply a flow of breathing gas. The humidifier and the flow generator are capable of electronic communication with one another. In some arrangements, an operating mode or parameter of the humidifier to be set or confirmed by the flow generator, either automatically or manually through a user interface of the flow generator. The humidifier can also utilize data provided by the flow generator or other system component, such as an incubator, to set or confirm an operating mode or parameter of the humidifier. In some arrangements, a user interface of the humidifier can display data from another system component, such as a nebulizer or pulse oximeter.Type: GrantFiled: May 14, 2018Date of Patent: January 25, 2022Assignee: Fisher & Paykel Healthcare LimitedInventors: Dexter Chi Lun Cheung, Matthew Jon Payton, Peter Alan Seekup
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Publication number: 20210138172Abstract: A method of determining a duration of safe apnoea. Information is obtained relating to a respiratory indicator, and a duration of safe apnoea is determined from the obtained information. A respiratory therapy system has one or more patient interfaces. A processor is configured to determine a duration of safe apnoea based on obtained information relating to a respiratory indicator.Type: ApplicationFiled: April 5, 2018Publication date: May 13, 2021Inventors: Alicia Jerram Hunter EVANS, Samantha Dale OLDFIELD, Michael Robert BARRACLOUGH, Dexter Chi Lun CHEUNG, Callum James Thomas SPENCE, Milanjot Singh ASSI, Hamish Adrian OSBORNE, Thomas Heinrich BARNES, Matthew Jon PAYTON, Craig Karl WHITE
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Publication number: 20200368471Abstract: The invention relates to a respiratory system comprising a first patient interface for delivery of a first flow of gases to a patient, a second patient interface for delivery of a second flow of gases to the patient, and a device and/or sensing arrangement that is configure to facilitate a switching of the system between a first respiratory mode where the device allowing delivery of the first flow of gases to an outlet of the first patient interface when the second patient interface is absent from the patient, and a second respiratory mode where the device reducing or stopping delivery of the first flow of gases to the outlet of the first patient interface when the second patient interface is located together with the first patient interface upon the patient.Type: ApplicationFiled: June 10, 2020Publication date: November 26, 2020Inventors: Bruce Gordon Holyoake, Dexter Chi Lun Cheung, Anil Patel, Seyed Ahmad Reza Nouraei, Milanjot Singh Assi, Thomas Heinrich Barnes, Alicia Jerram Hunter Evans, Craig Karl White, Matthew John Payton, Laith Adeeb Hermez, German Klink, Samantha Dale Oldfield, Taylor James Edwards, Aidan Robert Burgess