Patents by Inventor David Robson Blandford

David Robson Blandford 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: 11318233
    Abstract: New and useful systems, methods, and apparatuses for automatically identifying alternative cell chemistries of batteries that power portable electric devices and adjusting the characteristics of such devices in response to the identification of such cells in a reduced-pressure therapy environment are set forth in the appended claims.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: May 3, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Richard Daniel John Coulthard, David Robson Blandford
  • Patent number: 11229732
    Abstract: A system and method for performing tissue therapy may include applying a reduced pressure to a tissue site, sensing a fluid parameter being applied to the tissue site, generating a fluid sensor signal in response to sensing the fluid parameter, and altering the fluid sensor signal in response to sensing that the fluid parameter changes. A fluid leak location mode may be entered. In response to the fluid leak location mode being entered, a graphical user interface that provides for fluid leak location functionality may be displayed. In one embodiment, the fluid leak location mode may be automatically entered in response to the sensor signal crossing a threshold value. Additionally, an alarm signal may be generated in response to determining that the fluid sensor signal crosses the threshold value.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: January 25, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Mark Stephen James Beard, David Robson Blandford, Timothy Mark Robinson
  • Publication number: 20210260270
    Abstract: An apparatus and method for managing reduced pressure at a tissue site are disclosed. The apparatus comprises a pump for supplying reduced pressure to the tissue site, a motor coupled to the pump to propel the pump, and a drive system electrically coupled to the motor that includes a power source that provides a source of direct current power to the motor during an operational period at a substantially constant current and of sufficient magnitude to supply a targeted reduced pressure during the operational period. The drive system also includes a controller that monitors the pump's loading on the motor by measuring the voltage across the motor to determine whether the motor voltage remains within a predetermined operational range of voltages necessary for maintaining the reduced pressure supplied by the pump proximate to the targeted reduced pressure without directly measuring the reduced pressure using a pressure sensor.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Inventors: Christopher Brian LOCKE, David Robson BLANDFORD, Richard Daniel John COULTHARD
  • Patent number: 11033664
    Abstract: An apparatus and method for managing reduced pressure at a tissue site are disclosed. The apparatus comprises a pump for supplying reduced pressure to the tissue site, a motor coupled to the pump to propel the pump, and a drive system electrically coupled to the motor that includes a power source that provides a source of direct current power to the motor during an operational period at a substantially constant current and of sufficient magnitude to supply a targeted reduced pressure during the operational period. The drive system also includes a controller that monitors the pump's loading on the motor by measuring the voltage across the motor to determine whether the motor voltage remains within a predetermined operational range of voltages necessary for maintaining the reduced pressure supplied by the pump proximate to the targeted reduced pressure without directly measuring the reduced pressure using a pressure sensor.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 15, 2021
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, David Robson Blandford, Richard Daniel John Coulthard
  • Publication number: 20200352818
    Abstract: A reduced pressure treatment system is provided that includes a canister that is fluidly connected to a tissue site and is configured to receive fluid drawn from the tissue site under the influence of a reduced pressure. A reduced pressure source provides the reduced pressure and is fluidly connected to the tissue site by a fluid communication path, which may include a source conduit, the canister, and a target conduit. A sensing device communicates with the source conduit and is configured to sense a pressure in the source conduit. A valve communicates with the source conduit and is configured to vent the reduced pressure. A processing unit communicates with the sensing device and the valve and is configured to open the valve for a selected amount of time, determine a decay of reduced pressure, and determine a fill status of the canister based on the decay of reduced pressure.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 12, 2020
    Inventors: Christopher Brian LOCKE, Timothy Mark ROBINSON, David Robson BLANDFORD
  • Patent number: 10765592
    Abstract: A reduced pressure treatment system is provided that includes a canister that is fluidly connected to a tissue site and is configured to receive fluid drawn from the tissue site under the influence of a reduced pressure. A reduced pressure source provides the reduced pressure and is fluidly connected to the tissue site by a fluid communication path, which may include a source conduit, the canister, and a target conduit. A sensing device communicates with the source conduit and is configured to sense a pressure in the source conduit. A valve communicates with the source conduit and is configured to vent the reduced pressure. A processing unit communicates with the sensing device and the valve and is configured to open the valve for a selected amount of time, determine a decay of reduced pressure, and determine a fill status of the canister based on the decay of reduced pressure.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 8, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson, David Robson Blandford
  • Publication number: 20190151516
    Abstract: A system and method for performing tissue therapy may include applying a reduced pressure to a tissue site, sensing a fluid parameter being applied to the tissue site, generating a fluid sensor signal in response to sensing the fluid parameter, and altering the fluid sensor signal in response to sensing that the fluid parameter changes. A fluid leak location mode may be entered. In response to the fluid leak location mode being entered, a graphical user interface that provides for fluid leak location functionality may be displayed. In one embodiment, the fluid leak location mode may be automatically entered in response to the sensor signal crossing a threshold value. Additionally, an alarm signal may be generated in response to determining that the fluid sensor signal crosses the threshold value.
    Type: Application
    Filed: January 25, 2019
    Publication date: May 23, 2019
    Inventors: Christopher Brian LOCKE, Mark Stephen James BEARD, David Robson BLANDFORD, Timothy Mark ROBINSON
  • Publication number: 20190134278
    Abstract: New and useful systems, methods, and apparatuses for automatically identifying alternative cell chemistries of batteries that power portable electric devices and adjusting the characteristics of such devices in response to the identification of such cells in a reduced-pressure therapy environment are set forth in the appended claims.
    Type: Application
    Filed: November 19, 2018
    Publication date: May 9, 2019
    Inventors: Christopher Brian LOCKE, Richard Daniel John COULTHARD, David Robson BLANDFORD
  • Patent number: 10232095
    Abstract: A system and method for performing tissue therapy may include applying a reduced pressure to a tissue site, sensing a fluid parameter being applied to the tissue site, generating a fluid sensor signal in response to sensing the fluid parameter, and altering the fluid sensor signal in response to sensing that the fluid parameter changes. A fluid leak location mode may be entered. In response to the fluid leak location mode being entered, a graphical user interface that provides for fluid leak location functionality may be displayed. In one embodiment, the fluid leak location mode may be automatically entered in response to the sensor signal crossing a threshold value. Additionally, an alarm signal may be generated in response to determining that the fluid sensor signal crosses the threshold value.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: March 19, 2019
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Mark Stephen James Beard, David Robson Blandford, Timothy Mark Robinson
  • Patent number: 10159770
    Abstract: New and useful systems, methods, and apparatuses for automatically identifying alternative cell chemistries of batteries that power portable electric devices and adjusting the characteristics of such devices in response to the identification of such cells in a reduced-pressure therapy environment are set forth in the appended claims.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: December 25, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Richard Daniel John Coulthard, David Robson Blandford
  • Publication number: 20180177928
    Abstract: An apparatus and method for managing reduced pressure at a tissue site are disclosed. The apparatus comprises a pump for supplying reduced pressure to the tissue site, a motor coupled to the pump to propel the pump, and a drive system electrically coupled to the motor that includes a power source that provides a source of direct current power to the motor during an operational period at a substantially constant current and of sufficient magnitude to supply a targeted reduced pressure during the operational period. The drive system also includes a controller that monitors the pump's loading on the motor by measuring the voltage across the motor to determine whether the motor voltage remains within a predetermined operational range of voltages necessary for maintaining the reduced pressure supplied by the pump proximate to the targeted reduced pressure without directly measuring the reduced pressure using a pressure sensor.
    Type: Application
    Filed: December 28, 2017
    Publication date: June 28, 2018
    Inventors: Christopher Brian LOCKE, David Robson BLANDFORD, Richard Daniel John COULTHARD
  • Publication number: 20180064601
    Abstract: A reduced pressure treatment system is provided that includes a canister that is fluidly connected to a tissue site and is configured to receive fluid drawn from the tissue site under the influence of a reduced pressure. A reduced pressure source provides the reduced pressure and is fluidly connected to the tissue site by a fluid communication path, which may include a source conduit, the canister, and a target conduit. A sensing device communicates with the source conduit and is configured to sense a pressure in the source conduit. A valve communicates with the source conduit and is configured to vent the reduced pressure. A processing unit communicates with the sensing device and the valve and is configured to open the valve for a selected amount of time, determine a decay of reduced pressure, and determine a fill status of the canister based on the decay of reduced pressure.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 8, 2018
    Inventors: Christopher Brian LOCKE, Timothy Mark ROBINSON, David Robson BLANDFORD
  • Patent number: 9889240
    Abstract: An apparatus and method for managing reduced pressure at a tissue site are disclosed. The apparatus comprises a pump for supplying reduced pressure to the tissue site, a motor coupled to the pump to propel the pump, and a drive system electrically coupled to the motor that includes a power source that provides a source of direct current power to the motor during an operational period at a substantially constant current and of sufficient magnitude to supply a targeted reduced pressure during the operational period. The drive system also includes a controller that monitors the pump's loading on the motor by measuring the voltage across the motor to determine whether the motor voltage remains within a predetermined operational range of voltages necessary for maintaining the reduced pressure supplied by the pump proximate to the targeted reduced pressure without directly measuring the reduced pressure using a pressure sensor.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: February 13, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, David Robson Blandford, Richard Daniel John Coulthard
  • Patent number: 9844485
    Abstract: A reduced pressure treatment system is provided that includes a canister that is fluidly connected to a tissue site and is configured to receive fluid drawn from the tissue site under the influence of a reduced pressure. A reduced pressure source provides the reduced pressure and is fluidly connected to the tissue site by a fluid communication path, which may include a source conduit, the canister, and a target conduit. A sensing device communicates with the source conduit and is configured to sense a pressure in the source conduit. A valve communicates with the source conduit and is configured to vent the reduced pressure. A processing unit communicates with the sensing device and the valve and is configured to open the valve for a selected amount of time, determine a decay of reduced pressure, and determine a fill status of the canister based on the decay of reduced pressure.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: December 19, 2017
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson, David Robson Blandford
  • Publication number: 20170035948
    Abstract: An apparatus and method for managing reduced pressure at a tissue site are disclosed. The apparatus comprises a pump for supplying reduced pressure to the tissue site, a motor coupled to the pump to propel the pump, and a drive system electrically coupled to the motor that includes a power source that provides a source of direct current power to the motor during an operational period at a substantially constant current and of sufficient magnitude to supply a targeted reduced pressure during the operational period. The drive system also includes a controller that monitors the pump's loading on the motor by measuring the voltage across the motor to determine whether the motor voltage remains within a predetermined operational range of voltages necessary for maintaining the reduced pressure supplied by the pump proximate to the targeted reduced pressure without directly measuring the reduced pressure using a pressure sensor.
    Type: Application
    Filed: October 7, 2016
    Publication date: February 9, 2017
    Inventors: Christopher Brian Locke, David Robson Blandford, Richard Daniel John Coulthard
  • Publication number: 20170007748
    Abstract: A system and method for performing tissue therapy may include applying a reduced pressure to a tissue site, sensing a fluid parameter being applied to the tissue site, generating a fluid sensor signal in response to sensing the fluid parameter, and altering the fluid sensor signal in response to sensing that the fluid parameter changes. A fluid leak location mode may be entered. In response to the fluid leak location mode being entered, a graphical user interface that provides for fluid leak location functionality may be displayed. In one embodiment, the fluid leak location mode may be automatically entered in response to the sensor signal crossing a threshold value. Additionally, an alarm signal may be generated in response to determining that the fluid sensor signal crosses the threshold value.
    Type: Application
    Filed: September 23, 2016
    Publication date: January 12, 2017
    Inventors: CHRISTOPHER BRIAN LOCKE, Mark Stephen James BEARD, David Robson BLANDFORD, Timothy Mark ROBINSON
  • Patent number: 9474679
    Abstract: A system and method for performing tissue therapy may include applying a reduced pressure to a tissue site, sensing a fluid parameter being applied to the tissue site, generating a fluid sensor signal in response to sensing the fluid parameter, and altering the fluid sensor signal in response to sensing that the fluid parameter changes. A fluid leak location mode may be entered. In response to the fluid leak location mode being entered, a graphical user interface that provides for fluid leak location functionality may be displayed. In one embodiment, the fluid leak location mode may be automatically entered in response to the sensor signal crossing a threshold value. Additionally, an alarm signal may be generated in response to determining that the fluid sensor signal crosses the threshold value.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: October 25, 2016
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Mark Stephen James Beard, David Robson Blandford, Timothy Mark Robinson
  • Patent number: 9474838
    Abstract: An apparatus and method for managing reduced pressure at a tissue site are disclosed. The apparatus comprises a pump for supplying reduced pressure to the tissue site, a motor coupled to the pump to propel the pump, and a drive system electrically coupled to the motor that includes a power source that provides a source of direct current power to the motor during an operational period at a substantially constant current and of sufficient magnitude to supply a targeted reduced pressure during the operational period. The drive system also includes a controller that monitors the pump's loading on the motor by measuring the voltage across the motor to determine whether the motor voltage remains within a predetermined operational range of voltages necessary for maintaining the reduced pressure supplied by the pump proximate to the targeted reduced pressure without directly measuring the reduced pressure using a pressure sensor.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: October 25, 2016
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, David Robson Blandford, Richard Daniel John Coulthard
  • Publication number: 20160045648
    Abstract: A reduced pressure treatment system is provided that includes a canister that is fluidly connected to a tissue site and is configured to receive fluid drawn from the tissue site under the influence of a reduced pressure. A reduced pressure source provides the reduced pressure and is fluidly connected to the tissue site by a fluid communication path, which may include a source conduit, the canister, and a target conduit. A sensing device communicates with the source conduit and is configured to sense a pressure in the source conduit. A valve communicates with the source conduit and is configured to vent the reduced pressure. A processing unit communicates with the sensing device and the valve and is configured to open the valve for a selected amount of time, determine a decay of reduced pressure, and determine a fill status of the canister based on the decay of reduced pressure.
    Type: Application
    Filed: October 28, 2015
    Publication date: February 18, 2016
    Inventors: Christopher Brian LOCKE, Timothy Mark ROBINSON, David Robson BLANDFORD
  • Patent number: 9199011
    Abstract: A reduced pressure treatment system is provided that includes a canister that is fluidly connected to a tissue site and is configured to receive fluid drawn from the tissue site under the influence of a reduced pressure. A reduced pressure source provides the reduced pressure and is fluidly connected to the tissue site by a fluid communication path, which may include a source conduit, the canister, and a target conduit. A sensing device communicates with the source conduit and is configured to sense a pressure in the source conduit. A valve communicates with the source conduit and is configured to vent the reduced pressure. A processing unit communicates with the sensing device and the valve and is configured to open the valve for a selected amount of time, determine a decay of reduced pressure, and determine a fill status of the canister based on the decay of reduced pressure.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: December 1, 2015
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson, David Robson Blandford