Patents by Inventor Malcolm David Smith

Malcolm David Smith 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).

  • Publication number: 20210260330
    Abstract: Some embodiments provide for an inspiratory limb for a breathing circuit that includes a first segment that comprises a first heater wire circuit and a second segment that comprises a second heater wire circuit. The inspiratory limb can include an intermediate connector that includes a connection circuit that electrically couples the first heater wire circuit to the second heater wire circuit. The inspiratory limb can be configured to operate in two modes wherein, in a first mode, electrical power passes through the first electrical connection to provide power to the first heater wire circuit without providing power to the second heater wire circuit, and in a second mode, electrical power pass through the first electrical connection to provide power to both the first heater wire circuit and the second heater wire circuit.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 26, 2021
    Inventors: Po-Yen Liu, Peter Alan Seekup, Anthony James Newland, Malcolm David Smith, Ping Si, Helgard Oosthuysen, Matthew Robert Wilson, Ian Lee Wai Kwan, Sinaa Alnashi, Paul James Tonkin, Kiel Anthony McCool, David Robert Kemps, Yayi Lin, Callum McDonald Ross, David John Sims
  • Patent number: 10960167
    Abstract: Some embodiments provide for an inspiratory limb for a breathing circuit that includes a first segment that comprises a first heater wire circuit and a second segment that comprises a second heater wire circuit. The inspiratory limb can include an intermediate connector that includes a connection circuit that electrically couples the first heater wire circuit to the second heater wire circuit. The inspiratory limb can be configured to operate in two modes wherein, in a first mode, electrical power passes through the first electrical connection to provide power to the first heater wire circuit without providing power to the second heater wire circuit, and in a second mode, electrical power pass through the first electrical connection to provide power to both the first heater wire circuit and the second heater wire circuit.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: March 30, 2021
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Po-Yen Liu, Peter Alan Seekup, Anthony James Newland, Malcolm David Smith, Ping Si, Helgard Oosthuysen, Matthew Robert Wilson, Ian Lee Wai Kwan, Sinaa Alnashi, Paul James Tonkin, Kiel Anthony McCool, David Robert Kemps, Yayi Lin, Callum McDonald Ross, David John Sims
  • Publication number: 20200338295
    Abstract: A medical tube comprises a tail to connect an embedded wire to an electrical component. The tail may comprise a flattened portion and an exposed portion to facilitate attachment of the medical tube to an electrical component. The tail may comprise a second flattened portion. One or more wires, such as a heater wire or a sensor wire, may be embedded in the medical tube. The medical tube may comprise a connector that comprises a printed circuit board to which the one or more wires is attached. The connector may comprise features to support the printed circuit board, aid in assembly of the one or more wires to the connector, and protect electrical components against liquid ingress.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Inventors: Katja Munkelt, Christopher Gareth Sims, Seth Mclay Frater, Matthew Liam Buswell, Gavin Walsh Millar, David Leon McCauley, Malcolm David Smith, Brendan Thomas Vercoelen, Thomas Jacques Fernand Maeckelberghe, Kiel Anthony McCool, Thomas James Edwards
  • Patent number: 10751498
    Abstract: A medical tube comprises a tail to connect an embedded wire to an electrical component. The tail may comprise a flattened portion and an exposed portion to facilitate attachment of the medical tube to an electrical component. The tail may comprise a second flattened portion. One or more wires, such as a heater wire or a sensor wire, may be embedded in the medical tube. The medical tube may comprise a connector that comprises a printed circuit board to which the one or more wires is attached. The connector may comprise features to support the printed circuit board, aid in assembly of the one or more wires to the connector, and protect electrical components against liquid ingress.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: August 25, 2020
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Katja Munkelt, Christopher Gareth Sims, Seth Mclay Frater, Matthew Liam Buswell, Gavin Walsh Millar, David Leon McCauley, Malcolm David Smith, Brendan Thomas Vercoelen, Thomas Jacques Fernand Maeckelberghe, Kiel Anthony McCool, Thomas James Edwards
  • Publication number: 20200230338
    Abstract: A respiratory assistance apparatus includes a conduit connecting a flow generator and an outlet. The conduit includes a venture formation. The apparatus further includes an oxygen inlet in fluid communication or selective fluid communication with an oxygen outlet. The oxygen outlet is directed into the conduit and toward a mouth of the venture formation. The flow generator provides a flow path for air to enter the conduit when the flow generator is not operating.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 23, 2020
    Inventor: Malcolm David Smith
  • Patent number: 10583263
    Abstract: A respiratory assistance apparatus includes a conduit connecting a flow generator and an outlet. The conduit includes a venturi formation. The apparatus further includes an oxygen inlet in fluid communication or selective fluid communication with an oxygen outlet. The oxygen outlet is directed into the conduit and toward a mouth of the venturi formation. The flow generator provides a flow path for air to enter the conduit when the flow generator is not operating.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: March 10, 2020
    Assignee: Fisher & Paykel Healthcare Limited
    Inventor: Malcolm David Smith
  • Patent number: 10525225
    Abstract: A humidifier and humidity sensor used with a breathing assistance apparatus. The humidity sensor can sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier can also control independently the humidity and temperature of the gases. Further, a chamber manifold can facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit can provide a more effective temperature profile along its length.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: January 7, 2020
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Paul John Seakins, Malcolm David Smith, Mohammad Thudor
  • Publication number: 20180280651
    Abstract: Some embodiments provide for an inspiratory limb for a breathing circuit that includes a first segment that comprises a first heater wire circuit and a second segment that comprises a second heater wire circuit. The inspiratory limb can include an intermediate connector that includes a connection circuit that electrically couples the first heater wire circuit to the second heater wire circuit. The inspiratory limb can be configured to operate in two modes wherein, in a first mode, electrical power passes through the first electrical connection to provide power to the first heater wire circuit without providing power to the second heater wire circuit, and in a second mode, electrical power pass through the first electrical connection to provide power to both the first heater wire circuit and the second heater wire circuit.
    Type: Application
    Filed: September 9, 2016
    Publication date: October 4, 2018
    Inventors: Po-Yen Liu, Peter Alan Seekup, Anthony James Newland, Malcolm David Smith, Ping Si, Helgard Oosthuysen, Matthew Robert Wilson, Ian Lee Wai Kwan, Sinaa Alnashi, Paul James Tonkin, Kiel Anthony McCool, David Robert Kemps, Yayi Lin, Callum McDonald Ross, David John Sims
  • Patent number: 9750917
    Abstract: A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes senor(s) to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 5, 2017
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Paul John Seakins, Malcolm David Smith, Mohammad Thudor
  • Publication number: 20170100556
    Abstract: A medical tube comprises a tail to connect an embedded wire to an electrical component. The tail may comprise a flattened portion and an exposed portion to facilitate attachment of the medical tube to an electrical component. The tail may comprise a second flattened portion. One or more wires, such as a heater wire or a sensor wire, may be embedded in the medical tube. The medical tube may comprise a connector that comprises a printed circuit board to which the one or more wires is attached. The connector may comprise features to support the printed circuit board, aid in assembly of the one or more wires to the connector, and protect electrical components against liquid ingress.
    Type: Application
    Filed: March 17, 2015
    Publication date: April 13, 2017
    Inventors: Katja Munkelt, Christopher Gareth Sims, Seth Mclay Frater, Matthew Liam Buswell, Gavin Walsh Millar, David Leon McCauley, Malcolm David Smith, Brendan Thomas Vercoelen, Thomas Jacques Fernand Maeckelberghe, Kiel Anthony McCool, Thomas James Edwards
  • Publication number: 20170095637
    Abstract: A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes means to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.
    Type: Application
    Filed: December 12, 2016
    Publication date: April 6, 2017
    Inventors: Paul John Seakins, Malcolm David Smith, Mohammad Thudor
  • Patent number: 9555210
    Abstract: A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes means to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: January 31, 2017
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Paul John Seakins, Malcolm David Smith, Mohammad Thudor
  • Publication number: 20150250962
    Abstract: A respiratory assistance apparatus includes a conduit connecting a flow generator and an outlet. The conduit includes a venturi formation. The apparatus further includes an oxygen inlet in fluid communication or selective fluid communication with an oxygen outlet. The oxygen outlet is directed into the conduit and toward a mouth of the venturi formation. The flow generator provides a flow path for air to enter the conduit when the flow generator is not operating.
    Type: Application
    Filed: July 29, 2013
    Publication date: September 10, 2015
    Inventor: Malcolm David Smith
  • Publication number: 20150090260
    Abstract: A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes means to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.
    Type: Application
    Filed: December 5, 2014
    Publication date: April 2, 2015
    Inventors: Paul John Seakins, Malcolm David Smith, Mohammad Thudor
  • Publication number: 20130081619
    Abstract: A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes means to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.
    Type: Application
    Filed: July 2, 2012
    Publication date: April 4, 2013
    Applicant: FISHER & PAYKEL HEALTHCARE LIMITED
    Inventors: Paul John Seakins, Malcolm David Smith, Mohammad Thudor
  • Patent number: 8235041
    Abstract: A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes means to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: August 7, 2012
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Paul John Seakins, Malcolm David Smith, Mohammad Thudor
  • Patent number: 7588029
    Abstract: A gases transportation pathway for use in supplying a humidified gases stream to a patient includes regulated conduit heating. The regulated conduit heating may include a section of positive temperature coefficient material wherein the localized electrical resistance of the material is positively related to the localized temperature. The regulated conduit heating may be a layer of positive temperature coefficient material within the wall of the gases transportation pathway with at least a pair of conductors running the length of the pathway and in electrically conductive contact with the positive temperature coefficient material.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: September 15, 2009
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, Hussein Kadhum, Malcolm David Smith
  • Patent number: 7146979
    Abstract: A humidifier and humidity sensor is disclosed for use with a breathing assistance apparatus. The humidity sensor preferably includes means to sense absolute humidity, relative humidity and/or temperature at both the patient end and humidifier end. The humidifier may also include provision to both control independently the humidity and temperature of the gases. Further, a chamber manifold is disclosed to facilitate easy connection of the humidifier to various outlets, inlets and sensors. A heated conduit is described which provides a more effective temperature profile along its length.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: December 12, 2006
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Paul John Seakins, Malcolm David Smith, Mohammad Thudor
  • Patent number: 7120354
    Abstract: A gases delivery conduit for the supply of humidified medical gases as formed from an extruded plastic tube. The extruded plastic tube includes at least one heating element embedded within the wall of the tube. The heating element includes a pair of electrical conductors separated by a positive temperature coefficient material wherein the localised resistance of the material is positively related to the localised temperature.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: October 10, 2006
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Scott Robert Mackie, Craig Karl White, Brett John Huddart, Daniel John Smith, Hussein Kadhum, Malcolm David Smith
  • Patent number: 7043979
    Abstract: A housing for a sensor to prevent condensate from collecting in the sensor. The housing includes a deflector to channel condensate forming in the housing away from the sensor. A notch is provided at the base of the sensor to ensure any condensate forming on the sensor itself does not collect at the sensor base. Further the interior of the housing is roughened and treated with an antifogging agent to ensure any condensate falls continuously so droplets do not form.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: May 16, 2006
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Malcolm David Smith, Peter John Leonard