Patents by Inventor Allan Kenneth Frazer Grugeon Hunt

Allan Kenneth Frazer Grugeon Hunt 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: 20200281513
    Abstract: In some embodiments, an apparatus for imaging blood within a target region of tissue includes an imaging device configured to output image data associated with light received by the imaging device having a first and second spectral ranges, wherein the absorptivity by blood of light having the first spectral range is less than the absorptivity by blood of light having the second spectral range, and a controlling element configured to capture the image data associated with light received by the imaging device and to process the captured image data associated with light having the first spectral range and the captured image data associated with light having the second spectral range to generate compound image data associated with an amount of blood within the target region of tissue.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 10, 2020
    Inventors: Scott Grubb, Allan Kenneth Frazer Grugeon Hunt, Peter Laitenberger
  • Publication number: 20200261629
    Abstract: In some embodiments, a wound monitoring and/or therapy apparatus can include a wound dressing configured to be positioned over a wound. The wound dressing can support one or more sensors. The one or more sensors can include an optical sensor array cluster, which can include an optical sensor and single light source. In some embodiments, the wound dressing can include a substantially stretchable wound contact layer that includes a wound facing side and a non-wound facing side opposite the wound facing side, the wound facing side configured to be positioned in contact with a wound. The non-wound facing side of the wound contact layer can support a plurality of electronic components and a plurality of electronic connections that connect at least some of the plurality of the electronic components. The electronic components can include one or more sensors configured to obtain measurements of the wound or the periwound, or both.
    Type: Application
    Filed: September 24, 2018
    Publication date: August 20, 2020
    Inventors: Allan Kenneth Frazer Grugeon Hunt, Marcus Damian Phillips
  • Patent number: 10737002
    Abstract: Systems and methods for controlling a pump system for use in negative pressure wound therapy are described herein. In some embodiments, a method for controlling a pump system includes applying a drive signal to a pump assembly of the pump system, the drive signal alternating between a positive amplitude and a negative amplitude and the drive signal having an offset, and sampling a pressure within a fluid flow path configured to connect the pump system to a wound dressing configured to be placed over a wound during one or more time intervals. Each of the one or more time intervals can occur when the drive signal is approximately at an amplitude equal to one or more sampling amplitudes.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 11, 2020
    Assignee: Smith & Nephew PLC
    Inventors: Ben Alan Askem, Iacopo Claudio Ferrari, Matteo Foini, Paolo Forzani, Christopher John Fryer, Allan Kenneth Frazer Grugeon Hunt, Christian Riva
  • Publication number: 20200222597
    Abstract: An apparatus for use in monitoring or treating a wound is disclosed. The apparatus can include a wound dressing, a circuit board, and a sensor. The wound dressing can be positioned over a wound of a patient and absorb wound exudate from the wound. The circuit board can be incorporated in or coupled to the wound dressing and include a first conductive pathway extending around at least part of a perimeter of a first side of the circuit board. The first conductive pathway can be electrically coupled to an electrical ground for the circuit board. The sensor can be mounted on the circuit board and output a signal usable to determine a value indicative of a physiological parameter of the patient. The first conductive pathway can protect the sensor against an electrostatic discharge.
    Type: Application
    Filed: September 7, 2018
    Publication date: July 16, 2020
    Inventors: Ben Alan Askem, Fernando Bettani, Alberto Fasan, Allan Kenneth Frazer Grugeon Hunt, Felix Clarence Quintanar, Daniel Lee Steward
  • Publication number: 20200221976
    Abstract: Embodiments disclosed herein relate to systems, devices and methods for monitoring dimensional changes in medical devices attached to or implanted in the body, such as wound fillers. Disclosed embodiments may facilitate measuring the degree of wound closure by incorporating conductive elements into the wound filler. In some embodiments, the conductive elements may be conductive filler, a flexible conductive element, or an arrangement of discrete non-flexible conductive elements. The density of conductive material in an area or volume of the wound filler upon wound closure may be detected by a detection device that assesses the local dielectric constant of the wound filler, such as through use of a capacitive plate, or by a detection device that measures the resonant frequency of a conductive element.
    Type: Application
    Filed: August 17, 2018
    Publication date: July 16, 2020
    Inventor: Allan Kenneth Frazer Grugeon Hunt
  • Publication number: 20200214637
    Abstract: Embodiments of apparatuses and methods for determining an emplacement of sensors in a wound dressing are disclosed. In some embodiments, a wound dressing includes a plurality of sensors configured to measure wound or patient characteristics. One or more processors are configured to receive wound or patient characteristics data as well as emplacement data. The received data can be used to determine an emplacement of the plurality of sensors, the wound dressing, or a wound. The sensors can include a set of nanosensors. The wound dressing can include pH sensitive ink which can be utilized for determining a placement of the wound dressing and determining a pH associated with the wound. The wound dressing can be used in a negative pressure wound therapy system.
    Type: Application
    Filed: June 21, 2018
    Publication date: July 9, 2020
    Inventors: Varuni Rachindra Brownhill, Victoria Jody Hammond, Allan Kenneth Frazer Grugeon Hunt, Marcus Damian Phillips, Damian Smith, Charlotte Urwin
  • Patent number: 10682446
    Abstract: Systems and methods for controlling a pump system for use in negative pressure wound therapy are described herein. In some embodiments, a method for controlling a pump system includes causing provision of negative pressure, via a flow path, to a wound dressing configured to be positioned over a wound, the flow path configured to fluidically connect the pump system to the wound dressing, measuring a first pressure value in the flow path at a first time, measuring a second pressure value in the flow path at a second time, calculating a first rate of pressure change using the first and second pressure values, and in response to determining that the calculated first rate of pressure change satisfies a threshold rate of change, providing an indication that the wound dressing is full, wherein the method is performed under control of a controller of the pump system.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: June 16, 2020
    Assignee: Smith & Nephew PLC
    Inventors: Ben Alan Askem, Iacopo Claudio Ferrari, Matteo Foini, Paolo Forzani, Christopher John Fryer, Allan Kenneth Frazer Grugeon Hunt, Christian Riva
  • Publication number: 20200163802
    Abstract: Devices and methods for encapsulating a portion of a wound dressing with biocompatible coating are disclosed. In some embodiments, a method includes coating a first side of a flexible wound contact layer of the wound dressing with a hydrophobic coating. The first side of the wound contact layer can support a plurality of electronic components. The method can further include coating a second side of the wound contact layer opposite the first side with the hydrophobic coating. The wound contact layer can be formed at least partially from hydrophilic material.
    Type: Application
    Filed: July 23, 2018
    Publication date: May 28, 2020
    Inventors: Allan Kenneth Frazer Grugeon Hunt, Lee Partington, Felix Clarence Quintanar, Daniel Lee Steward, Charlotte Urwin
  • Publication number: 20200155030
    Abstract: A magnetic inductance tomography (MIT) device for imaging a tissue of a patient can include multiple coils, electronic circuitry, and one or more processors. The electronic circuitry can separately energize individual coils of the multiple coils to generate magnetic fields perturbed by the tissue. The one or more processors can receive MIT signals responsive to the magnetic fields perturbed by the tissue and process the MIT signals to generate an MIT image. The MIT signals can include a first MIT signal generated by a first coil of the multiple coils and a second MIT signal generated by a second coil of the multiple coils. The first MIT signal can be indicative of a characteristic of the tissue at a different depth in the tissue from a surface of the tissue than the second MIT signal.
    Type: Application
    Filed: May 21, 2018
    Publication date: May 21, 2020
    Inventors: Edward Yerbury Hartwell, Allan Kenneth Frazer Grugeon Hunt
  • Publication number: 20200121833
    Abstract: Systems and methods for controlling and/or calibrating a pump system for use in negative pressure wound therapy are described herein. In some embodiments, a method for controlling a pump system includes calculating an amplitude and an offset for a drive signal based at least in part on previously calculated parameters and a negative pressure setting, generating the drive signal, and applying the drive signal to a pump system. The pump system can be fludicially connected to a wound dressing positioned over a wound.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 23, 2020
    Inventors: Ben Alan Askem, Iacopo Claudio Ferrari, Matteo Foini, Paolo Forzani, Christopher John Fryer, Allan Kenneth Frazer Grugeon Hunt, Christian Riva
  • Publication number: 20200093970
    Abstract: Embodiments of negative pressure wound therapy systems and methods for operating the systems are disclosed. In one embodiment, a negative pressure wound therapy apparatus can include a wound dressing, a negative pressure source, and a controller. The negative pressure source can provide negative pressure via a fluid flow path to the wound dressing. The controller can monitor a rate of fluid removal from the wound, wirelessly communicate the rate of fluid removal to a remote device, and output an indication when the rate of fluid removal meets a threshold.
    Type: Application
    Filed: June 12, 2018
    Publication date: March 26, 2020
    Inventors: Allan Kenneth Frazer Grugeon Hunt, Felix Clarence Quintanar
  • Publication number: 20200078499
    Abstract: Embodiments of tissue monitoring in combination with negative pressure wound therapy systems and methods are disclosed. In some embodiments, a monitoring and therapy system comprises collecting video images of a tissue site and amplifying said video images via Eulerian Video Magnification. Depending upon the changes detected via Eulerian Video magnification, negative pressure wound therapy may be delivered to the tissue site, stopped, or altered in some manner.
    Type: Application
    Filed: May 11, 2018
    Publication date: March 12, 2020
    Inventors: Yeswanth Gadde, Allan Kenneth Frazer Grugeon Hunt, Marcus Damian Phillips
  • Publication number: 20190358372
    Abstract: Embodiments of negative pressure wound therapy systems, apparatuses, and methods for operating the systems and apparatuses are disclosed. In some embodiments, the apparatus includes a negative pressure source, a connector port, at least one switch, and a controller. The negative pressure source is connected through the connector port to either (i) a wound dressing having a canister configured to store fluid aspirated from the wound or (ii) a wound dressing without a canister between the connector port and the wound dressing. The controller determines, based on a signal received from the at least one switch, whether the canister is positioned in the fluid flow path and adjusts one or more operational parameters of negative pressure wound therapy based on the determination. The switch is activated by the connection of either the canister or canisterless wound dressing to the apparatus.
    Type: Application
    Filed: February 15, 2018
    Publication date: November 28, 2019
    Inventors: Ben Alan Askem, Anthony Jonathan Bedford, Kevin Bendele, Ali Khishdoost Borazjani, Nicola Brandolini, Ian Charles Culverhouse, Otteh Edubio, James Maxwell Eelbeck, Matt Ekman, Matthew Keith Fordham, Philip Gowans, Michael James Hayers, Mark Richard Hesketh, James Daniel Homes, Allan Kenneth Frazer Grugeon Hunt, Mark Edward Jones, William Kelbie, Reece Knight, David Mcleod, Nisha Mistry, Samuel John Mortimer, Fatoona Mosa, Matthew Murphy, Michael Paton, Neil Harry Patrick, Louis della-Porta, Felix Clarence Quintanar, Lee Michael Rush, Carl Dean Saxby, Hannah Bailey Sidebottom, Daniel Lee Steward, Catherine Thaddeus, Simon Tyson, David Ronald Upton, William Jacob Ward, Nicholas Warrington
  • Publication number: 20190290496
    Abstract: In some embodiments, a wound dressing that incorporates a number of sensors or sensors separate from the wound dressing can be utilized in order to monitor characteristics of a wound as it heals or to identify one or more risk factors or conditions that may precipitate a wound. In some implementations, a wound dressing configured to be positioned in contact with a wound includes a substantially flexible substrate supporting one or more sensors. The one or more sensors can include temperature sensors, conductivity sensors, multispectral optical measurements sensors, pH sensors, pressure sensors, colorimetric sensors, optical sensors, ultraviolet (UV) sensors, or infrared (IR) sensors.
    Type: Application
    Filed: May 12, 2017
    Publication date: September 26, 2019
    Inventors: Runi Brownhill, Nicholas John Collier, James Christopher Frake, Victoria Hammond, Edward Yerbury Hartwell, Allan Kenneth Frazer Grugeon Hunt, Gordon John Leather, Simon Mark Norman, Charlotte Urwin
  • Publication number: 20190231939
    Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a housing, negative pressure source, circuit board, and one or more controllers. The circuit board can be supported by the housing and include a conductive pathway extending around at least part of a perimeter of a first side of the circuit board. The conductive pathway can be electrically coupled to an electrical ground for the circuit board. The one or more controllers can be mounted on the circuit board and activate and deactivate the negative pressure source.
    Type: Application
    Filed: September 26, 2017
    Publication date: August 1, 2019
    Inventors: Ben Alan Askem, Fernando Bettani, Alberto Fasan, Allan Kenneth Frazer Grugeon Hunt, Felix Clarence Quintanar
  • Publication number: 20190159938
    Abstract: Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a negative pressure source is incorporated into a wound dressing apparatus so that the wound dressing and the negative pressure source are part of an integral or integrated wound dressing structure that applies the wound dressing and the negative pressure source simultaneously to a patient's wound. The negative pressure source and/or electronic components may be positioned between a wound contact layer and a cover layer of the wound dressing. A component may be used to prevent wound exudate from contacting the inlet of the negative pressure source.
    Type: Application
    Filed: April 26, 2017
    Publication date: May 30, 2019
    Inventors: Ben Alan Askem, Victoria Beadle, John Philip Gowans, Mark Hesketh, Allan Kenneth Frazer Grugeon Hunt, William Kelbie, Damyn Musgrave, Joseph William Robinson
  • Publication number: 20190142644
    Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a wound dressing, negative pressure source, user interface, sensor, and control circuitry. The user interface can receive an activation input. The sensor can detect whether the wound dressing is positioned over a wound. The control circuitry can cause supply of negative pressure in response to receipt of the activation input and a determination that the sensor detects that the wound dressing is positioned over the wound. In addition, the control circuitry can prevent supply of negative pressure in response to a determination that the sensor does not detect that the wound dressing is positioned over the wound.
    Type: Application
    Filed: May 3, 2017
    Publication date: May 16, 2019
    Applicant: Smith & Nephew PLC
    Inventors: Ben Alan Askem, Victoria Beadle, John Philip Gowans, Mark Hesketh, Allan Kenneth Frazer Grugeon Hunt, William Kelbie, Damyn Musgrave, Joseph William Robinson
  • Publication number: 20190143007
    Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a driving circuit that supplies a driving signal to a negative pressure source to cause the negative pressure source to provide negative pressure via a fluid flow path to a wound dressing. The apparatus furthers include a controller that adjusts a frequency of the driving signal supplied by the driving circuit according to a comparison of a previous magnitude and a subsequent magnitude of the driving signal while the negative pressure source provides negative pressure. The transfer of power to the negative pressure source can thereby be tuned to maximize an amount of power transferred to the negative pressure source.
    Type: Application
    Filed: May 3, 2017
    Publication date: May 16, 2019
    Inventors: Ben Alan Askem, Victoria Beadle, John Philip Gowans, Mark Hesketh, Allan Kenneth Frazer Grugeon Hunt, William Kelbie, Damyn Musgrave, Joseph William Robinson
  • Publication number: 20190125943
    Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a source of negative pressure, a coupling circuit, a driving circuit, and a controller. The driving circuit supplies a driving signal to the source of negative pressure via the coupling circuit to cause the source of negative pressure to provide negative pressure to a wound dressing. The coupling circuit includes an inductive reactance that limits a rate of change over time of the driving signal. The controller controls the driving signal supplied by the driving circuit.
    Type: Application
    Filed: May 3, 2017
    Publication date: May 2, 2019
    Inventors: Ben Alan Askem, Victoria Beadle, John Philip Gowans, Mark Hesketh, Allan Kenneth Frazer Grugeon Hunt, William Kelbie, Damyn Musgrave, Joseph William Robinson
  • Publication number: 20190021911
    Abstract: Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a negative pressure source is incorporated into a wound dressing apparatus so that the wound dressing and the negative pressure source are part of an integral or integrated wound dressing structure that applies the wound dressing and the negative pressure source simultaneously to a patient's wound. The negative pressure source and/or electronic components may be positioned between a wound contact layer and a cover layer of the wound dressing. The negative pressure source and/or electronic components may be separated and/or partitioned from an absorbent area of the dressing. A switch may be integrated with the wound dressing to control operation of the wound dressing apparatus. A connector may be direct air from an outlet of the negative pressure source to the environment. A non-return valve may inhibit back flow of air into the wound dressing.
    Type: Application
    Filed: March 6, 2017
    Publication date: January 24, 2019
    Inventors: Ben Alan Askem, Victoria Beadle, John Philip Gowans, Mark Hesketh, Allan Kenneth Frazer Grugeon Hunt, William Kelbie, Damyn Musgrave, Joseph William Robinson