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: 20200360637Abstract: This invention relates to a respiratory therapy system comprising a first patient interface for delivery of a flow of gas to a patient, and a second patient interface for delivery of a flow of gas to the patient, or devices or interfaces for use in such systems.Type: ApplicationFiled: June 10, 2020Publication date: November 19, 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
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Patent number: 10716912Abstract: 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: March 31, 2016Date of Patent: July 21, 2020Assignee: 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 Jon Payton, Laith Adeeb Hermez, German Klink, Samantha Dale Oldfield, Taylor James Edwards, Aidan Robert Burgess
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Publication number: 20200001039Abstract: In some embodiments, a humidification system includes a heater base having a heater plate, a humidification chamber, and circuit. The circuit can include various conduits, including an inspiratory conduit, expiratory conduit, Y-piece, patient conduit, and/or dry conduit. In use, the chamber contains a quantity of liquid. The heater base heats the heater plate, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor, thereby humidifying the gases within the chamber. The gas is delivered to the patient via the inspiratory conduit. Various features can help control the system and ensure the patient receives gases having the desired conditions. These features can be used individually or in various combinations and subcombinations both in existing humidification systems and improved systems for respiratory humidification, laparoscopy, and other purposes.Type: ApplicationFiled: September 11, 2019Publication date: January 2, 2020Inventors: Dexter Chi Lun Cheung, Matthew Jon Payton, Michael Barraclough, Michael John Andresen, Kieran Michael Orchard, Philip James Edgeworth, Peter Kenneth Graham, Anthony James Newland, Daniel John Smith, Timothy James Beresford Sharp, Elmo Benson Stoks, Jonathan Mark Church, Andre van Schalkwyk
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Patent number: 10449323Abstract: In some embodiments, a humidification system includes a heater base having a heater plate, a humidification chamber, and circuit. The circuit can include various conduits, including an inspiratory conduit, expiratory conduit, Y-piece, patient conduit, and/or dry conduit. In use, the chamber contains a quantity of liquid. The heater base heats the heater plate, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor, thereby humidifying the gases within the chamber. The gas is delivered to the patient via the inspiratory conduit. Various features can help control the system and ensure the patient receives gases having the desired conditions. These features can be used individually or in various combinations and subcombinations both in existing humidification systems and improved systems for respiratory humidification, laparoscopy, and other purposes.Type: GrantFiled: March 28, 2013Date of Patent: October 22, 2019Assignee: Fisher & Paykel Healthcare LimitedInventors: Dexter Chi Lun Cheung, Matthew Jon Payton, Michael Barraclough, Michael John Andresen, Kieran Michael Orchard, Philip James Edgeworth, Peter Kenneth Graham, Anthony James Newland, Daniel John Smith, Timothy James Beresford Sharp, Elmo Benson Stoks, Jonathan Mark Church, Andre van Schalkwyk
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Publication number: 20190255278Abstract: 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: February 8, 2019Publication date: August 22, 2019Inventors: 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: 10245407Abstract: 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 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: September 15, 2014Date of Patent: April 2, 2019Assignee: 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: 20190091437Abstract: 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: October 10, 2018Publication date: March 28, 2019Inventors: Andrew Robert Donald Somervell, Nordyn Alami, Dexter Chi Lun Cheung, Christopher Simon James Quill, Matthew Jon Payton
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Patent number: 10124141Abstract: 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: January 23, 2008Date of Patent: November 13, 2018Assignee: 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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Publication number: 20180280644Abstract: 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: November 17, 2015Publication date: October 4, 2018Inventors: Laith Adeeb Hermez, Stephen David Evans, Hamish Osborne, Michael John Andresen, Anthony James Newland, Dexter Chi Lun Cheung
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Publication number: 20180286510Abstract: A maintenance system for a medical device includes a user device configured to communicate with the medical device and execute maintenance tasks on the medical device and communicate with a user via a user interface of the user device or the medical device. The maintenance tasks may be executed by either device or both devices, and communication with a user may occur via a user interface of either device or both devices. The system may also include a server configured to communicate with one or both of the user device and the medical device. The maintenance tasks may include an electrical safety check, a physical check, a performance check, and a functional check. Examples of functional checks include validation of a transient current detector and a thermal cutout.Type: ApplicationFiled: September 21, 2016Publication date: October 4, 2018Inventors: Ian Lee Wai KWAN, Warushahennedige Hansinie SOYSA, Wenjie Robin LIANG, Dexter Chi Lun CHEUNG
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Publication number: 20180256846Abstract: 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: May 14, 2018Publication date: September 13, 2018Inventors: Dexter Chi Lun Cheung, Matthew Jon Payton, Peter Alan Seekup
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Patent number: 9993608Abstract: 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 1, 2013Date of Patent: June 12, 2018Assignee: FISHER & PAYKEL HEALTHCARE LIMITEDInventors: Dexter Chi Lun Cheung, Matthew John Payton, Peter Alan Seekup
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Publication number: 20180126110Abstract: 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: February 18, 2016Publication date: May 10, 2018Inventors: 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: 20180085544Abstract: 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: March 31, 2016Publication date: March 29, 2018Inventors: 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 Jon Payton, Laith Adeeb Hermez, German Klink, Samantha Dale Oldfield, Taylor James Edwards, Aidan Robert Burgess
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Publication number: 20180078728Abstract: 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: March 31, 2016Publication date: March 22, 2018Inventors: 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: 20180071469Abstract: This invention relates to, among other embodiments, methods and apparatus/systems for controlling gases delivery to a patient, such as via a patient interface. Such methods comprising receiving an input relating to either a patient's breathing phase and/or another patient parameter, controlling a flow of gases to be delivered to the patient and the inclusion in said flow of gases of a supplementary gas, wherein the amount of supplementary gas provided to the patient is substantially synchronized with respect to the patient's breathing phase and/or another patient parameter.Type: ApplicationFiled: March 31, 2016Publication date: March 15, 2018Inventors: Samantha Dale Oldfield, Milanjot Singh Assi, Dexter Chi Lun Cheung, Callum James Thomas Spence, Alicia Jerram Hunter Evans, Craig Karl White, Matthew Jon Payton, Thomas Heinrich Barnes
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Publication number: 20180064898Abstract: 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: March 31, 2016Publication date: March 8, 2018Inventors: 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 BARRACLOUGH, Matthew Jon PAYTON
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Publication number: 20170151411Abstract: 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 15, 2014Publication date: June 1, 2017Inventors: Hamish 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 (David) LIU, Richard Edward LANG, Paul James TONKIN, Ian Lee Wai KWAN
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Publication number: 20150107588Abstract: 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: May 1, 2013Publication date: April 23, 2015Applicant: Fisher & Paykel Healthcare LimitedInventors: Dexter Chi Lun Cheung, Matthew Jon Payton, Peter Allan Seekup
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Publication number: 20150048530Abstract: In some embodiments, a humidification system includes a heater base having a heater plate, a humidification chamber, and circuit. The circuit can include various conduits, including an inspiratory conduit, expiratory conduit, Y-piece, patient conduit, and/or dry conduit. In use, the chamber contains a quantity of liquid. The heater base heats the heater plate, which in turn heats the liquid to a temperature that causes at least some of the liquid to become vapor, thereby humidifying the gases within the chamber. The gas is delivered to the patient via the inspiratory conduit. Various features can help control the system and ensure the patient receives gases having the desired conditions. These features can be used individually or in various combinations and subcombinations both in existing humidification systems and improved systems for respiratory humidification, laparoscopy, and other purposes.Type: ApplicationFiled: March 28, 2013Publication date: February 19, 2015Inventors: Dexter Chi Lun Cheung, Matthew Jon Payton, Michael Barraclough, Michael John Andresen, Kieran Michael Orchard, Philip James Edgeworth, Peter Kenneth Graham, Anthony James Newland, Daniel John Smith, Timothy James Beresford Sharp, Elmo Benson Stoks, Jonathan Mark Church, Andre van Schalkwyk