Patents by Inventor David Peter Baldwin

David Peter Baldwin 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).

  • Patent number: 12280214
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: April 22, 2025
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, David Peter Baldwin
  • Publication number: 20210275770
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Application
    Filed: February 18, 2021
    Publication date: September 9, 2021
    Inventors: Daniel John SMITH, David Peter BALDWIN
  • Patent number: 10953184
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: March 23, 2021
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, David Peter Baldwin
  • Publication number: 20190201649
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Application
    Filed: March 7, 2019
    Publication date: July 4, 2019
    Inventors: Daniel John Smith, David Peter Baldwin
  • Patent number: 10286174
    Abstract: An expiratory limb for a breathing circuit includes an enclosing wall defining a flexible singular expiratory flow passage between an inlet and an outlet and bounding the flexible singular expiratory flow passage and ambient air. The expiratory limb includes one or more regions of the enclosing wall that made from a material that allows passage of water vapor without allowing passage of liquid water, thereby forming a water vapor flow path from the flexible singular expiratory flow passage to the ambient air through the material. The expiratory limb is configured to allow diffusion of water vapor along the flexible singular expiratory flow passage and dry the flow of expiratory gases between the inlet and the outlet.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 14, 2019
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, Gavin Walsh Millar, Kevin Blake Powell, David Peter Baldwin
  • Publication number: 20190111228
    Abstract: An expiratory limb for a breathing circuit includes an enclosing wall defining a flexible singular expiratory flow passage between an inlet and an outlet and bounding the flexible singular expiratory flow passage and ambient air. The expiratory limb includes one or more regions of the enclosing wall that made from a material that allows passage of water vapor without allowing passage of liquid water, thereby forming a water vapor flow path from the flexible singular expiratory flow passage to the ambient air through the material. The expiratory limb is configured to allow diffusion of water vapor along the flexible singular expiratory flow passage and dry the flow of expiratory gases between the inlet and the outlet.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 18, 2019
    Inventors: Daniel John Smith, Gavin Walsh Milar, Kevin Blake Powell, David Peter Baldwin
  • Patent number: 10252017
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: April 9, 2019
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, David Peter Baldwin
  • Patent number: 10159814
    Abstract: An expiratory limb for a breathing circuit includes an enclosing wall defining a flexible singular expiratory flow passage between an inlet and an outlet and bounding the flexible singular expiratory flow passage and ambient air. The expiratory limb includes one or more regions of the enclosing wall that made from a material that allows passage of water vapor without allowing passage of liquid water, thereby forming a water vapor flow path from the flexible singular expiratory flow passage to the ambient air through the material. The expiratory limb is configured to allow diffusion of water vapor along the flexible singular expiratory flow passage and dry the flow of expiratory gases between the inlet and the outlet.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 25, 2018
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, Gavin Walsh Millar, Kevin Blake Powell, David Peter Baldwin
  • Publication number: 20180133428
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Application
    Filed: October 20, 2017
    Publication date: May 17, 2018
    Inventors: Daniel John Smith, David Peter Baldwin
  • Publication number: 20180071478
    Abstract: A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapor without allowing the passage of liquid water or respiratory gases. The breathing circuit component may be the expiratory limb of a breathing circuit.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 15, 2018
    Inventors: Daniel John Smith, Gavin Walsh Millar, Kevin Blake Powell, David Peter Baldwin
  • Publication number: 20180071477
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 15, 2018
    Inventors: Daniel John Smith, David Peter Baldwin
  • Patent number: 9827393
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: November 28, 2017
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, David Peter Baldwin
  • Patent number: 9802020
    Abstract: A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapor without allowing the passage of liquid water or respiratory gases. The breathing circuit component is the expiratory limb of a breathing circuit.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: October 31, 2017
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, Gavin Walsh Millar, Kevin Blake Powell, David Peter Baldwin
  • Publication number: 20170296769
    Abstract: A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapor without allowing the passage of liquid water or respiratory gases. The breathing circuit component may be the expiratory limb of a breathing circuit.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 19, 2017
    Inventors: Daniel John Smith, Gavin Walsh Millar, Kevin Blake Powell, David Peter Baldwin
  • Publication number: 20120174924
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Application
    Filed: October 12, 2011
    Publication date: July 12, 2012
    Applicant: FISHER & PAYKEL HEALTHCARE LIMITED
    Inventors: Daniel John Smith, David Peter Baldwin
  • Patent number: 8037882
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a hydrophilic layer. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic layer. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: October 18, 2011
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, David Peter Baldwin
  • Patent number: 7958891
    Abstract: A method of conveying humid breathing gases from a patient through a breathable breathing tube. The breathing tube includes a heater associated, at least in part, with a portion of hydrophilic material. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic material. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: June 14, 2011
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, David Peter Baldwin
  • Publication number: 20090211579
    Abstract: A method of conveying humid breathing gases from a patient through a breathable breathing tube. The breathing tube includes a heater associated, at least in part, with a portion of hydrophilic material. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked tip by the hydrophilic material. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Application
    Filed: May 6, 2009
    Publication date: August 27, 2009
    Inventors: Daniel John SMITH, David Peter BALDWIN
  • Patent number: 7559324
    Abstract: A conduit for a breathing circuit includes a heater associated, at least in part, with a portion of hydrophilic material. The purpose of the heater is to evaporate any condensed liquid collecting in the conduit, which is first sucked up by the hydrophilic material. The heated wick reduces the risk of collected water being passed to the patient and causing choking fits or discomfit. It is preferred that the heated wick lies freely in the conduit to settle at low points in the conduit where condensation may collect.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: July 14, 2009
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Daniel John Smith, David Peter Baldwin
  • Publication number: 20090078260
    Abstract: A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapour without allowing the passage of liquid water or respiratory gases. The breathing circuit component is the expiratory limb of a breathing circuit.
    Type: Application
    Filed: December 4, 2008
    Publication date: March 26, 2009
    Inventors: DANIEL JOHN SMITH, GAVIN WALSH MILLAR, KEVIN BLAKE POWELL, DAVID PETER BALDWIN