Patents Assigned to Smith & Nephew plc
  • Patent number: 10493182
    Abstract: Disclosed herein are systems and methods for providing reduced or negative pressure, and more particularly cyclical reduced pressure, to treat a wound. The system can include a wound dressing, a fluid collection container, a suction source, filters, and conduits. In addition, the system can include a control device and sensors. The sensors may be configured to monitor certain physiological conditions of a patient such as temperature, pressure, blood flow, blood oxygen saturation, pulse, cardiac cycle, and the like. Application of cyclical reduced pressure between two or more values below atmospheric pressure may be synchronized with the physiological conditions monitored by the sensors. Certain embodiments of the system utilize an air reservoir and one or more valves and pressure sensors or gauges to allow for rapid cycling of the level of reduced pressure within the wound dressing between two or more reduced pressure values.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 3, 2019
    Assignees: Smith & Nephew, Inc., Smith & Nephew PLC
    Inventors: Richard Scott Weston, Edward Yerbury Hartwell
  • Patent number: 10493184
    Abstract: Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising a bridge portion connecting two or more portions of an absorbent layer that facilitates trimming of the wound dressing to suitable sizes. Some embodiments provide for trimming the dressing in a gap between two or more portions of an absorbent layer and sealing the exposed portion of dressing after trimming when the dressing is applied to skin surrounding a wound.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 3, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Sarah Jenny Collinson, Nicholas Charlton Fry, Philip Gowans, Edward Yerbury Hartwell, Marcus Damian Phillips
  • Patent number: 10426875
    Abstract: An apparatus for cleansing wounds, in which wound exudate is removed from a wound bed and selectively cleansed and returned to the wound. The cleansing means removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The associated wound dressing and cleansing means are conformable to the wound, and may have irrigant fluid circulated from a reservoir by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: October 1, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Patrick Lewis Blott, Bryan Greener, Edward Yerbury Hartwell, Derek Nicolini, Tina Michelle Walker, Julian Lee-Webb
  • Patent number: 10413379
    Abstract: Disclosed herein are several embodiments of medical device packaging, and more particularly to a reduced pressure therapy kit and packaging and methods of using the same in the treatment of wounds. Some embodiments are directed towards packaging including a dressing compartment for storing wound dressings and having use instructions printed thereon, the dressing compartment detachably connected to a pump compartment for storing a sterile pump. After removal of the pump, the pump compartment can be detached from the dressing compartment and discarded. The dressing compartment can be retained together with any additional dressings and the use instructions.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 17, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Ian Binder, Sarah Jenny Collinson, John Cowan-Hughes, John Gowans, Beverley Love, David Patterson, Mark Russell, Peter Sleight, Philip Walsh
  • Patent number: 10413644
    Abstract: An apparatus and method for aspirating, irrigating and/or cleansing wounds is provided. The apparatus and method include one or more of the following: simultaneous aspiration and irrigation of the wound, supplying of thermal energy to fluid circulated through the wound; supplying physiologically active agents to the wound; a biodegradable scaffold in contact with the wound bed; and application of stress or flow stress to the wound bed.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: September 17, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Patrick Lewis Blott, Edward Yerbury Hartwell, Julian Lee-Webb, Derek Nicolini
  • Patent number: 10369250
    Abstract: A curable composition apportioned between at least one Part A and at least one Part B, the Parts sealed within barrier means preventing contamination, the at least one Part A comprising: (i) one or more alkenyl-group containing prepolymers having at least one alkenyl group or moiety per molecule, and the at least one Part B comprising: (ii) one or more SiH-containing prepolymers having at least one Si—H unit per molecule; the composition additionally comprising: (iii) a catalyst for curing by addition of alkenyl-containing prepolymer (i) to SiH-containing prepolymer (ii), wherein prepolymer (ii) is substantially absent from Part A and prepolymer (i) is substantially absent from Part B, methods for preparing the composition, methods for sterilisation thereof, medical and non-medical use thereof, a device incorporating the composition, and a precursor therefor including its sterilisable precursor composition, in particular a terminally sterilisable or terminally sterile composition for medical use, particularly
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: August 6, 2019
    Assignees: Smith & Nephew PLC, Bluestar Silicones France SAS
    Inventors: Marcus Damian Phillips, Delphine Blanc
  • Patent number: 10363345
    Abstract: A wound packing material is provided, suitable for use in negative pressure wound therapy, including a body of a porous material, the body including frangible regions defining a plurality of portions, the frangible regions allowing the portions to be selectively removed from the body. Methods of manufacturing the wound packing material, and methods of its use are also provided.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: July 30, 2019
    Assignee: Smith & Nephew PLC
    Inventor: Bryan Greener
  • Patent number: 10342729
    Abstract: An apparatus for cleansing wounds with means for stressing the wound bed and optionally tissue surrounding the wound, in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are recirculated by a devise for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing. The cleansing means (which may be a single-phase, e.g. micro-filtration, system or a two-phase, e.g. dialytic system) removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The means for stressing the wound bed and optionally tissue surrounding the wound promotes wound healing. The dressing and a method of treatment using the apparatus.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: July 9, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Patrick Lewis Blott, Bryan Greener, Edward Yerbury Hartwell, Julian Lee-Webb, Derek Nicolini, Clare Green, Robin Paul Martin, Tina Michelle Walker
  • 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
  • Patent number: 10307517
    Abstract: Negative pressure wound therapy apparatuses and dressings, and systems and methods for operating such apparatuses for use with dressings are disclosed. In some embodiments, controlling the delivery of therapy can be based on monitoring and detecting various operating conditions. An apparatus can have a controller configured to monitor the duty cycle of a source of negative pressure and, based on the monitored duty cycle, determine whether a leak is present. The controller can be configured to provide an indication that a leak is present. For example, the controller can be configured to suspend and/or pause the delivery of therapy, and to restart the delivery of therapy due to a timeout, request from a user, etc. In addition, the controller can be configured to pause and/or restart the delivery of therapy upon a request from the user, such as in response to the user operating a switch.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: June 4, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Julie Allen, Ben Alan Askem, Sarah Jenny Collinson, Richard Thomas Hughey, Derek Nicolini
  • Patent number: 10299964
    Abstract: Some embodiments disclosed herein are directed to a pump assembly comprising a voice coil, a magnet and a diaphragm, wherein the voice coil is configured to move the diaphragm to pump a fluid through the pump assembly in response to a drive signal applied to the voice coil. Some embodiments disclosed herein are directed to an apparatus for applying negative pressure to a wound comprising a source of negative pressure configured to be coupled to a dressing, the source of negative comprising a voice coil actuator and a diaphragm, and a controller configured to produce a drive signal for the voice coil actuator.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: May 28, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Ben Alan Askem, Trevor John Beckett, Iacopo Claudio Ferrari, Matthew James Herd, Keith Marshall, Tom Moy, Alexander David Norman, Christian Riva, Gary Stacey, Philip Walsh
  • 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
  • Patent number: 10288590
    Abstract: Disclosed herein are devices and methods for determining the pH of fluid. Example devices include a device comprising a surface configured to contact the fluid and a pH indicator covalently bound thereto, wherein the pH indicator has a first color prior to contact with the fluid and changes color as a function of the pH of the fluid.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 14, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Victoria Jody Hammond, John Kenneth Hicks
  • Patent number: 10278869
    Abstract: An apparatus for cleansing wounds in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are recirculated by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing. The cleansing means (which may be a single-phase, e.g. microfiltration, system or a two-phase, e.g. dialytic system) removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The dressing and a method of treatment using the apparatus.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: May 7, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Patrick Lewis Blott, Bryan Greener, Edward Yerbury Hartwell, Tina Michelle Walker, Derek Nicolini, Julian Lee-Webb
  • Patent number: 10245185
    Abstract: Wound contacting members and methods, apparatuses, systems and kits incorporating the same are disclosed. The wound contacting members offer improved performance in terms of preventing or inhibiting tissue in-growth and improving tissue granulation growth. The wound contacting members may be used in negative pressure wound therapy (NPWT) applications.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: April 2, 2019
    Assignee: Smith & Nephew PLC
    Inventors: John Kenneth Hicks, Elizabeth Mary Huddleston
  • Patent number: 10231878
    Abstract: A system, method, and apparatus are disclosed for dressing a wound and for minimizing scarring. The apparatus promotes scar-minimizing healing of a wound where negative pressure wound therapy is applied, and comprises a wound contact layer containing silicone, polysiloxanes, or other related compounds.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: March 19, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Samantha Dawn Hartwell, Donald Anthony Hudson
  • Patent number: 10231874
    Abstract: A wound dressing, a method of manufacturing a wound dressing, and a method of treating a patient are disclosed. The wound dressing may include an absorbent layer for absorbing wound exudate; and an obscuring element for at least partially obscuring a view of wound exudate absorbed by the absorbent layer in use.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: March 19, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Ella Lynn Mumby, Helene Anne Lecomte
  • Patent number: RE47644
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 15, 2019
    Assignee: Smith & Nephew PLC
    Inventor: Yannick Louis Peron
  • Patent number: RE47645
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: October 15, 2019
    Assignee: Smith & Nephew PLC
    Inventor: Yannick Louis Peron
  • Patent number: D866756
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 12, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Julie Allen, Sarah Jenny Collinson, Philip Gowans, Steven Carl Mehta, Derek Nicolini, Carol Wagner