Patents by Inventor Nathan Wrench

Nathan Wrench 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: 10646265
    Abstract: Disclosed herein is an apparatus for cooling a sterile liquid for use in cryotherapy, the apparatus comprising: a first chamber (202) adapted to receive a removable container (201) of sterile liquid and a fluid port for receiving a fluid for applying, in use, pressure to a received removable container (201); and a second chamber (203) comprising a cooler; wherein the first chamber (202) is arranged to be in thermal conductivity with the second chamber (203) such that, in use, the contents of the first chamber (202) are cooled by the cooler of the second chamber (203). Advantageously, embodiments provide a system, heat exchanger unit within the system and method for supplying a sterilised working fluid to a catheter system for cryotherapy, the working fluid being supplied at a desired and easily controllable temperature and flow rate.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: May 12, 2020
    Assignee: Cryotherapeutics GmbH
    Inventors: Stuart Robert Abercrombie, Duncan Aleck Bishop, Symon Cotton, Richard Day, Sylvain Bruno Jamais, Simon Karger, Andrew Lintott, Nathan Wrench
  • Publication number: 20200000983
    Abstract: Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.
    Type: Application
    Filed: June 17, 2019
    Publication date: January 2, 2020
    Inventors: Benjamin Gordon, Jake Turner, Edward Yerbury Hartwell, Stephen Jacob, Nathan Wrench, Edward Vernon-Harcourt, David Harris
  • Patent number: 10328187
    Abstract: Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: June 25, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Benjamin Gordon, Jake Turner, Edward Hartwell, Stephen Jacob, Nathan Wrench, Edward Vernon-Harcourt, David Harris
  • Publication number: 20180238839
    Abstract: A container assembly for use with a high-pressure liquid chromatography (HPLC) instrument is disclosed, in which the container assembly, when coupled to a source of pressurized gas, provides fluid medium to the HPLC instrument at positive pressure. The container assembly has an external exterior container shell, an internal fluid container for holding fluid medium, an interstitial volume between the external exterior container shell and the internal fluid container, a port for fluidly connecting the volume to a pressurized gas source, and a port for fluidly connecting the internal fluid container to the HPLC instrument. As a pressurized gas in the interstitial volume increases, fluid medium flows out of the port connected to the internal fluid bag and container assembly at a positive pressure. A system incorporating the container assembly, and method of use of the same, are also disclosed.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 23, 2018
    Inventors: Nathan Wrench, William Mainwaring-Burton, Chris Butcher, Nick Harrison
  • Patent number: 9921193
    Abstract: A container assembly for use with a high-pressure liquid chromatography (HPLC) instrument is disclosed, in which the container assembly, when coupled to a source of pressurized gas, provides fluid medium to the HPLC instrument at positive pressure. The container assembly has an external exterior container shell, an internal fluid container for holding fluid medium, an interstitial volume between the external exterior container shell and the internal fluid container, a port for fluidly connecting the volume to a pressurized gas source, and a port for fluidly connecting the internal fluid container to the HPLC instrument. As a pressurized gas in the interstitial volume increases, fluid medium flows out of the port connected to the internal fluid bag and container assembly at a positive pressure. A system incorporating the container assembly, and method of use of the same, are also disclosed.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 20, 2018
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Nathan Wrench, William Mainwaring-Burton, Chris Butcher, Nick Harrison
  • Patent number: 9889394
    Abstract: A filter device having a sonotrode connected to a filtration assembly. The filtration assembly has a filter body having a fluid passage. The filter body has a filter across the fluid passage. The filter assembly has a resonant frequency and the sonotrode is adapted to vibrate the filter assembly at or near the resonant frequency.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: February 13, 2018
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Richard Day, Michael Burcher, Nathan Wrench, Marek Myszko, Matthew Hayes
  • Publication number: 20160361106
    Abstract: Disclosed herein is an apparatus for cooling a sterile liquid for use in cryotherapy, the apparatus comprising: a first chamber (202) adapted to receive a removable container (201) of sterile liquid and a fluid port for receiving a fluid for applying, in use, pressure to a received removable container (201); and a second chamber (203) comprising a cooler; wherein the first chamber (202) is arranged to be in thermal conductivity with the second chamber (203) such that, in use, the contents of the first chamber (202) are cooled by the cooler of the second chamber (203). Advantageously, embodiments provide a system, heat exchanger unit within the system and method for supplying a sterilised working fluid to a catheter system for cryotherapy, the working fluid being supplied at a desired and easily controllable temperature and flow rate.
    Type: Application
    Filed: December 15, 2014
    Publication date: December 15, 2016
    Applicant: CRYOTHERAPEUTICS GMBH
    Inventors: Stuart Robert Abercrombie, Duncan Aleck Bishop, Symon Cotton, Richard Day, Sylvain Bruno Jamais, Simon Karger, Andrew Lintott, Nathan Wrench
  • Publication number: 20160339156
    Abstract: Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.
    Type: Application
    Filed: August 4, 2016
    Publication date: November 24, 2016
    Inventors: Benjamin Gordon, Jake Turner, Edward Hartwell, Stephen Jacob, Nathan Wrench, Edward Vernon-Harcourt, David Harris
  • Patent number: 9459035
    Abstract: A refrigeration device is provided that includes a housing enclosing an interior and an assembly in the interior having a storage compartment for chunks of ice and a stirrer. The stirrer is rotatable about an axis that extends through the storage compartment to move chunks of ice contained in the storage compartment in relation to each other and to move ice towards a dispensing passage that extends through the housing. A closable flap is interposed between the storage compartment and the dispensing passage.
    Type: Grant
    Filed: November 22, 2007
    Date of Patent: October 4, 2016
    Assignee: BSH Hausgeraete GmbH
    Inventors: Martin Buchstab, Irene Dumkow, Adolf Feinauer, Klaus Flinner, Bernd Heger, Helen Lewis, Peter Nalbach, Martin PĆ¼njer, Craig Duncan Webster, Nathan Wrench, Kasim Yazan
  • Patent number: 9408954
    Abstract: Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: August 9, 2016
    Assignee: SMITH & NEPHEW PLC
    Inventors: Benjamin Gordon, Jake Turner, Edward Hartwell, Stephen Jacob, Nathan Wrench, Edward Vernon-Harcourt, David Harris
  • Patent number: 9320988
    Abstract: Disclosed herein is an apparatus for debubbling or degassing a liquid. The apparatus includes a tube with a hollow lumen and a gas-permeable, liquid-impermeable wall surrounding the lumen. Also disclosed is a method for performing the debubbling or degassing, wherein the liquid is passed through the tube and gas is allowed to escape through the wall of the tube. The application additionally discloses a system for debubbling or degassing a liquid, wherein a pump is connected to the upstream end of the tube and a device to impede the flow of liquid out the tube is connected to the downstream end.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 26, 2016
    Assignee: BIO-RAD LABORATORIES, INC.
    Inventors: Nathan Wrench, William Mainwaring-Burton
  • Patent number: 9243837
    Abstract: A dispensing device for free-flowing or pourable products, in particular in a refrigeration device. Said dispensing device has a feed pipe for a pourable product, comprising an exit opening and a shut-off flap that is situated at the exit opening, and an outlet for the free-flowing product, said outlet being attached to the flap and displaceable with the latter.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: January 26, 2016
    Assignee: BSH Hausgeraete GmbH
    Inventors: Martin Buchstab, Irene Dumkow, Adolf Feinauer, Klaus Flinner, Bernd Heger, Marek Myszko, Peter Nalbach, Nathan Wrench, Kasim Yazan
  • Patent number: 8974429
    Abstract: A method and apparatus for alerting a user of topical negative pressure therapy apparatus to a full waste canister condition are described, the apparatus comprising a device having vacuum pump means and a waste canister connected to the device and the waste canister operably connected to a wound dressing by aspiration conduit means for aspirating fluid from the wound, the aspiration conduit means, the waste canister and the device providing a fluid flow path therethrough and the vacuum pump means providing fluid flow through the apparatus, the apparatus further comprising fluid flow restriction means in the fluid flow path of said vacuum pump and fluid pressure sensing means upstream and downstream of said fluid flow restriction means.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: March 10, 2015
    Assignee: Smith & Nephew PLC
    Inventors: Benjamin Gordon, Jake Turner, Nathan Wrench, Edward Vernon-Harcourt, David Harris
  • Publication number: 20140326080
    Abstract: A filter device having a sonotrode connected to a filtration assembly. The filtration assembly has a filter body having a fluid passage. The filter body has a filter across the fluid passage. The filter assembly has a resonant frequency and the sonotrode is adapted to vibrate the filter assembly at or near the resonant frequency.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 6, 2014
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Richard Day, Michael Burcher, Nathan Wrench, Marek Myszko, Matthew Hayes
  • Publication number: 20140261868
    Abstract: A container assembly for use with a high-pressure liquid chromatography (HPLC) instrument is disclosed, in which the container assembly, when coupled to a source of pressurized gas, provides fluid medium to the HPLC instrument at positive pressure. The container assembly has an external exterior container shell, an internal fluid container for holding fluid medium, an interstitial volume between the external exterior container shell and the internal fluid container, a port for fluidly connecting the volume to a pressurized gas source, and a port for fluidly connecting the internal fluid container to the HPLC instrument. As a pressurized gas in the interstitial volume increases, fluid medium flows out of the port connected to the internal fluid bag and container assembly at a positive pressure. A system incorporating the container assembly, and method of use of the same, are also disclosed.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Nathan Wrench, William Mainwaring-Burton, Chris Butcher, Nick Harrison
  • Publication number: 20140260970
    Abstract: Disclosed herein is an apparatus for debubbling or degassing a liquid. The apparatus includes a tube with a hollow lumen and a gas-permeable, liquid-impermeable wall surrounding the lumen. Also disclosed is a method for performing the debubbling or degassing, wherein the liquid is passed through the tube and gas is allowed to escape through the wall of the tube. The application additionally discloses a system for debubbling or degassing a liquid, wherein a pump is connected to the upstream end of the tube and a device to impede the flow of liquid out the tube is connected to the downstream end.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Nathan Wrench, William Mainwaring-Burton
  • Patent number: 8601829
    Abstract: In the case of an ice maker comprising a frame (15) and a tray (1), which is pivotable in the frame (15) about an axis and in which at least one compartment (4) is formed, a flexible line (12) connecting the tray (1) with the frame (15) extends in a curve about the pivot axis of the tray (1).
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: December 10, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Bernd Heger, Tom StQuintin, Craig Duncan Webster, Nathan Wrench
  • Publication number: 20130150813
    Abstract: Methods and apparatuses for detecting full waste canister and/or fluid flow path blockage conditions are disclosed. Also disclosed are methods and apparatuses for controlling a pump. In some embodiments, flow of fluid can be restricted in a portion of the fluid flow path. A controller can be configured to compare a difference in pressure values upstream and downstream of a fluid flow restrictor to a pressure difference threshold, and determine based on the comparison whether to activate an alarm indicating the full waste canister condition or the fluid flow path blockage condition. The controller can be additionally or alternatively configured to determine a fluid flow using a flow meter, open a selectable valve in response to a comparison of the fluid flow with a fluid flow threshold, determine fluid flow after opening the valve, and determine based on the fluid flow after opening the valve whether to activate the alarm.
    Type: Application
    Filed: August 17, 2012
    Publication date: June 13, 2013
    Applicant: SMITH & NEPHEW PLC
    Inventors: Benjamin Gordon, Jake Turner, Edward Hartwell, Stephen Jacob, Nathan Wrench, Edward Vernon-Harcourt, David Harris
  • Patent number: 8240519
    Abstract: An ice dispenser including an ice supply container; a shaft extending into the supply container; a stirrer rotatable about the shaft which extends into the supply container, the stirrer being connectable to a rotation drive device that rotates the stirrer; an output chamber communicated with the supply container, the output chamber having an ice outlet opening; a slider rotatable in the output chamber, a rotation of the slider in a predetermined manner operating to bring the slider into moving engagement with ice located in the output chamber; and a coupling selectively disposable between an active coupling disposition in which the coupling operatively interconnects the stirrer and the slider to one another such that the slider rotates in correspondence with a rotation of the stirrer and a decoupling disposition in which the coupling does not operatively interconnect the stirrer and the slider to one another.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: August 14, 2012
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Martin Buchstab, Irene Dumkow, Adolf Feinauer, Klaus Flinner, Bernd Heger, Helen Lewis, Peter Nalbach, Craig Duncan Webster, Nathan Wrench, Kasim Yazan
  • Patent number: 8181471
    Abstract: An ice maker comprises a tray (1), which has at least one compartment (4) for molding a piece of ice, a frame (15), in which the tray is mounted to be pivotable about an axis (14), and a motor (22) for driving the pivot movement of the tray, which motor is mounted at the frame (15) to be adjacent to the tray (1) and transversely offset relative to the axis.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: May 22, 2012
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Bernd Heger, Thomas St Quintin, Craig Duncan Webster, Nathan Wrench