Wound Or Abscess Patents (Class 604/543)
  • Patent number: 12082996
    Abstract: Disclosed herein are several embodiments of a negative pressure appliance and methods of using the same in the treatment of wounds. Some embodiments are directed to improved fluidic connectors or suction adapters for connecting to a wound site, for example using softer, kink-free conformable suction adapters.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: September 10, 2024
    Assignee: Smith & Nephew, Inc.
    Inventors: Sean Albert, Ed Armstrong, Ken Beaudoin, Iain Michael Blackburn, Phil Bussone, Brendan Crawford, Robert Emmerson, Mike Ewaschuk, Stephen Gianelis, Andrew Goddard, Joseph Gordon, Mark Guarraia, Tim Johnson, Darwin Keith-Lucas, Andrew Linton, Dan Nelsen, Michael Salame, Tim Stern, Mark White
  • Patent number: 12042596
    Abstract: A mobile negative pressure wound therapy (NPWT) device is described having an inlet to be in fluid flow connection with a wound site; a canister in fluid flow connection with the inlet for collection of liquid from the wound site; a pump in fluid flow connection with the canister for establishing a negative pressure in the canister; a pressure sensor arranged to sense a pressure in the canister; and control circuitry for controlling operation of the NPWT device.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: July 23, 2024
    Assignee: Mölnlycke Health Care AB
    Inventors: Alain Roux, Anders Hermansson, Stefan Kidborg
  • Patent number: 12033738
    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: Grant
    Filed: May 11, 2018
    Date of Patent: July 9, 2024
    Assignee: Smith & Nephew PLC
    Inventors: Yeswanth Gadde, Allan Kenneth Frazer Grugeon Hunt, Marcus Damian Phillips
  • Patent number: 11964093
    Abstract: A method and apparatus for providing negative pressure at a wound site. The apparatus includes a negative pressure reservoir and a reservoir valve for selectively connecting the reservoir to a wound chamber at a wound site. In particular, but not exclusively, the present invention relates to an apparatus including a source of negative pressure which acts as a negative pressure reservoir to continually or repeatedly “top up” an applied negative pressure so that negative pressure applied at a wound site can be maintained within desired limits for a relatively long period of time.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: April 23, 2024
    Assignee: Smith & Nephew PLC
    Inventor: Bryan Greener
  • Patent number: 11819602
    Abstract: A chemical pump assembly useful for negative pressure therapy includes a chemical pump housing having an inner chamber, a reactor located within the inner chamber, an opening provided in the chemical pump housing, a first pull tab which extends from the inner chamber to ambient through the opening, and a removable layer connected to the first pull tab. The reactor is configured to react with a selected gas found in air so as to consume the selected gas when exposed to air in the inner chamber. The removable layer shields the reactor from air in the inner chamber atmosphere until the removable layer is removed.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: November 21, 2023
    Assignee: Aatru Medical, LLC
    Inventors: John Buan, Richard L. Middaugh, Timothy Wojciechowski, Thomas E. Lash, Reed Oliver Saunders, Thomas Arthur Tedham
  • Patent number: 11806468
    Abstract: Embodiments of secure wound therapy systems and methods for operating the systems are disclosed. In some embodiments, the apparatus includes a pressure source, a user interface, and a locking mechanism. The locking mechanism can be in one of at least two states, the at least two states including a first state in which the locking mechanism physically prevents user adjustment of one or more operational parameters with the user interface and a second state in which the locking mechanism does not physically prevent user adjustment of the one or more operational parameters with the user interface. The locking mechanism can include an authentication key and a receiver configured to receive an authentication input, which may be compared to the authentication key. Providing a sufficiently matching authentication input can transition the locking mechanism from the first state to the second state, permitting adjustments to the one or more operational parameters.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: November 7, 2023
    Assignee: T.J.Smith and Nephew, Limited
    Inventor: Felix Clarence Quintanar
  • Patent number: 11806216
    Abstract: Systems, apparatuses, and methods for instilling fluid to a tissue site in a negative-pressure therapy environment are described, Illustrative embodiments may include a pneumatically-actuated instillation pump that can draw a solution from a solution source during a negative-pressure interval, and instill the solution to a dressing during a venting interval. In one example embodiment, a system for providing negative-pressure and instillation to a tissue site may comprise a negative-pressure device and an instillation device. The negative-pressure device may comprise a negative-pressure source and a controller electrically coupled to the negative-pressure source. The instillation device may comprise a dosing valve having a dosing chamber including a dosing outlet configured to be fluidly coupled to a fluid port and a dosing inlet configured to be fluidly coupled to a source of instillation solution.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: November 7, 2023
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Justin Alexander Long
  • Patent number: 11737924
    Abstract: Devices and methods herein remove water from human or animal biological waste fluids using one or more forward osmosis filters. The devices allow for the volume of liquid or semi-liquid waste, including potentially infectious liquid waste, to be filtered to reduce potential exposure of healthcare staff to infectious liquid waste. On a hospital, healthcare staff, or individual patient basis, removing water and concentrating the waste can reduce challenges in management and disposal of the waste. Devices herein use forward osmosis to manage and filter, using one or more suitably sized filter(s), biological fluid exudate from wounds. The devices can be constructed to transport water present in the exudate away from a wound. The wound treatment devices herein not only allow for fluid from wounds to be filtered but also provide structures that can protect wounds from external contaminants, including bacteria and viruses.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: August 29, 2023
    Inventor: Brian H. Silver
  • Patent number: 11707564
    Abstract: Disclosed herein are systems and methods for safe operation of a wound treatment apparatus with electronic components integrated on or within a wound dressing. In some embodiments, the electronic components include a power source, an isolation circuit, a controller, a capacitor, and a negative pressure source. The isolation circuit provides multiple activation states with at least one state preventing application of power to the other electronic components capable of storing electrical energy, thereby providing a safe operation of the apparatus. For example, sterilization of the apparatus can be performed safely.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: July 25, 2023
    Assignee: Smith & Nephew PLC
    Inventors: Frederick Jethro Harrison, Edward Yerbury Hartwell, William Kelbie, Reece Knight, Gergely Melis, Damyn Musgrave, Molly Northcote, Felix Clarence Quintanar, Joseph William Robinson, Daniel Lee Steward, Grant West
  • Patent number: 11554203
    Abstract: Disclosed herein are embodiments of a wound treatment apparatus with electronic components integrated within a wound dressing. In some embodiments, a wound dressing apparatus can comprise a wound dressing. The wound dressing can comprise an absorbent material, an electronics unit comprising a negative pressure source, the electronics unit integrated within the wound dressing and at least partially encapsulated by a flexible film. The electronics unit can include translucent or transparent components that allow light to travel through to reach adhesives or coatings on the electronic components that would otherwise be obscured.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: January 17, 2023
    Assignee: Smith & Nephew PLC
    Inventors: William Kelbie, Daniel Lee Steward, Charlotte Urwin
  • Patent number: 11484640
    Abstract: Negative pressure wound therapy systems, apparatuses, and methods for operating the systems and apparatuses are disclosed. In some cases, the system can include a dressing having electronic circuitry that wirelessly communicates a dressing identifier and/or other dressing information to a controller of a pump assembly of the system. The controller can automatically modify one or more operational parameters of the pump assembly based on the dressing identifier and/or other dressing information wirelessly communicated. Duration of time over which the dressing has been in use can be monitored and provision of therapy by the pump assembly can be disabled responsive to a determination that the duration of time has reached operational lifetime of the dressing.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: November 1, 2022
    Assignee: T.J.Smith and Nephew, Limited
    Inventors: David Michael Elder, Hannah Bailey Weedon
  • Patent number: 11364145
    Abstract: Methods and systems for automatically pulsing different aspiration levels to an ocular probe are disclosed. The probe may be a phacoemulsification probe. A first aspiration level, supplied by a first pump, may be applied to the probe simultaneously with ultrasonic energy. A second aspiration level, supplied by a second pump, may be automatically switched from the first aspiration level, and applied to the probe in a pulsed manner.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: June 21, 2022
    Assignee: Johnson & Johnson Surgical Vision, Inc.
    Inventors: Robert G. Raney, Michael Claus, James Gerg, Wayne S. Wong, David A. King, James W. Staggs, Fred Lee
  • Patent number: 11241338
    Abstract: A pressure switch for controlling application of negative pressure to dressing disposed adjacent a tissue site is disclosed. The pressure switch comprises a body having a base, sidewalls extending from the base to an open end, and an inlet coupled to the dressing and forming a passage through the body. The pressure switch further comprises a diaphragm closing the open end of the sidewalls and forming a vacuum chamber with the body, wherein the inlet fluidly couples the vacuum chamber and the dressing. The pressure switch further comprises a valve disposed in the passage and configured to restrict the flow of gas through the passage so that a switch pressure developed in the vacuum chamber as a result of the application of negative pressure to the dressing lags a wound pressure at the tissue site to delay, wherein the diaphragm is adapted to be operatively responsive to the switch pressure to move between a relaxed position and a compressed position as the negative pressure increases and decreases.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: February 8, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Michael Bernard Beasley, Christopher Brian Locke, James Killingworth Seddon
  • Patent number: 11167073
    Abstract: A system for applying reduced pressure to tissue includes a multi-lumen reduced pressure delivery tube having a proximate end, a distal end, a primary lumen extending through the conduit from the proximate end to the distal end, and an ancillary lumen extending through the conduit from the proximate end to the distal end. A vacuum pump is coupled to the proximate end of the primary lumen, and a reduced pressure adapter is coupled to the distal end of the reduced pressure delivery tube. The adapter includes channels to direct liquid away from the ancillary lumens and into the primary lumen.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: November 9, 2021
    Assignee: KCI Licensing, Inc.
    Inventors: Keith Patrick Heaton, Timothy Mark Robinson, Christopher Brian Locke
  • Patent number: 11129751
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing wound exudate, a liquid impermeable, gas permeable filter layer over the absorbent layer, a cover layer comprising at least one orifice and a first liquid and gas permeable transmission layer underlying the absorbent layer. The transmission layer is in fluid communication with the filter layer.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: September 28, 2021
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: 11109977
    Abstract: A femoral hip joint spacer. The spacer has a prosthesis body with a ball head, a neck, a stem and an anchoring sleeve which encloses the stem on a proximal side of the stem with a circumferential fastening area, irrigation liquid inlet and outlet openings in the body surface, at least one irrigation liquid discharge opening on a distal side of the stem and at least one irrigation liquid intake opening on the ball head or on the neck. The discharge opening is connected in a liquid-permeable manner to the inlet opening but not to the outlet opening and the intake opening is connected inside the prosthesis body in a liquid-permeable manner to the outlet opening but not to the inlet opening. A cavity open on two sides is formed inside the anchoring sleeve and connects a proximal side to a distal side of the sleeve in a liquid-permeable manner.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: September 7, 2021
    Assignee: HERAEUS MEDICAL GMBH
    Inventors: Sebastian Vogt, Thomas Kluge
  • Patent number: 11096831
    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: Grant
    Filed: May 3, 2017
    Date of Patent: August 24, 2021
    Assignee: 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: 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
  • Patent number: 10918526
    Abstract: Systems, methods, and dressings for treating a linear wound, such as an incision, on a patient are presented. The systems, dressings, and methods involve a sealed wound dressing assembly that helps form a fluid seal around the linear wound while simultaneously encompassing a subcutaneous delivery conduit to deliver fluid to or from a subcutaneous tissue site. In one instance, a reduced-pressure interface is used to allow the subcutaneous delivery conduit to pass through tissue at or near the linear wound and through a wound dressing assembly to a drainage receptacle.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: February 16, 2021
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson
  • Patent number: 10842678
    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: January 8, 2018
    Date of Patent: November 24, 2020
    Assignee: Smith & Nephew PLC
    Inventors: Patrick Lewis Blott, Bryan Greener, Edward Yerbury Hartwell, Tina Michelle Walker, Derek Nicolini, Julian Lee-Webb
  • Patent number: 10828202
    Abstract: A negative pressure assembly includes a drape, a sealing element, a reactor, a valve and a mechanical pump assembly. The drape and the sealing element, when applied to the skin, cooperate to define an enclosed volume. The reactor is located so as to be in fluid communication with the enclosed volume when the drape is covering the dressing site. The reactor reacts with a selected gas found in air to consume the selected gas. The valve has a first operating state in which gas is drawn from the enclosed volume through the valve. The mechanical pump assembly includes a pump chamber fluidly connectable to the enclosed volume through the valve when the valve is in the first operating state. The mechanical pump is configured to fluidly connect with the enclosed volume and draw air from the enclosed volume into the pump chamber.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: November 10, 2020
    Assignee: Aatru Medical, LLC
    Inventors: John Buan, Richard L. Middaugh, Timothy Wojciechowski, Thomas E. Lash, Reed Oliver Saunders, Thomas Arthur Tedham
  • Patent number: 10743900
    Abstract: A method and apparatus for disrupting material at a tissue site is described. A contact layer may be selected for use on the tissue site and positioned adjacent to the tissue site. The contact layer may include walls defining a plurality of through-holes. A sealing member may be positioned over the contact layer and sealed to tissue surrounding the tissue site to form a sealed space enclosing the contact layer. A negative-pressure source may be fluidly coupled to the sealed space. The negative-pressure source may supply negative pressure to the sealed space and the contact layer to draw tissue into the through-holes to form nodules. The negative pressure may be vented from the sealed space to release the nodules.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 18, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Shannon C. Ingram, Christopher Brian Locke, Peter Arnold, Timothy Mark Robinson, Christopher A. Carroll, Michael E. Manwaring
  • Patent number: 10737003
    Abstract: A housing of a pump unit is fixed to a drape of a wound dressing by a joint portion. A suction chamber that is brought into a negative pressure by driving of a piezoelectric pump directly communicates with a closed space through an opening and an inlet. Hence, a therapy device does not need to include a pipe that allows the closed space and the pump unit to communicate with each other. Therefore, since the therapy device does not need to include the pipe that allows the pump unit to communicate with the closed space, detachment of the pump unit from the wound dressing owing to coming-off of the pipe is avoided. Since the housing is fixed to the drape by the joint portion, the pump unit can be prevented from detaching from the wound dressing.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: August 11, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Masaaki Fujisaki
  • Patent number: 10702649
    Abstract: Some illustrative embodiments of an instillation assembly for treating a tissue site may include a fluid distribution lumen and a fluid hub that may define a fluid instillation pathway. The fluid distribution lumen may be defined by a first film layer and a second film layer, and the fluid hub may be positioned in fluid communication with the fluid distribution lumen. The instillation assembly may be used in combination with a reduced-pressure assembly that may define a reduced-pressure pathway separate from the fluid instillation pathway.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: July 7, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: David Richard Mercer, Christopher Brian Locke, Benjamin Andrew Pratt
  • Patent number: 10633475
    Abstract: Provided are an immobilization carrier, a polyether compound used for production thereof and a method for producing the carrier. The immobilization carrier have both excellent strength and toughness while a content of a polymer forming hydrous gel is suppressed, The immobilization carrier includes a polymer having a repeated unit provided with a bisphenol group and a polyoxyalkylene group bonded to the bisphenol group. The polyoxyalkylene group is formed via copolymerization between an oxyethylene group and an oxyalkylene group with 3 or more carbon atoms and optionally having a substituent. A method for producing the immobilization carrier includes the step of preparing hydrous gel via polymerizing a polyether compound in an aqueous solution. The polyether compound includes a bisphenol group, a polyoxyalkylene group and a polymerizable group. The immobilization carrier may be applied to a microorganism immobilization carrier used for treating wastewater.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: April 28, 2020
    Assignee: HITACHI, LTD.
    Inventors: Kazuichi Isaka, Yuya Kimura
  • Patent number: 10624669
    Abstract: In one embodiment, a system for image-guided drainage of abscesses includes a trocar configured to guide a tubular drain toward an abscess within the body of a patient. The trocar includes a joint portion pivotably coupling a proximal portion and a distal portion. The joint portion includes a locking mechanism that when engaged locks the proximal portion in place relative to the distal portion. The joint portion enables the trocar to pivot between an advancement position for advancing the trocar into the body of the patient and an image position for performing a radiology image of a partial advancement of the distal portion within the body of the patient. The image position reduces, relative to the advancement position, the angle between respective central axes of the proximal and distal portions.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: April 21, 2020
    Inventor: Wells Mangrum
  • Patent number: 10624794
    Abstract: A negative pressure wound therapy system includes a wound dressing and a suction device configured to be in fluid communication with the wound dressing via a conduit to channel a fluid between at least the wound dressing and the suction device. The suction device includes a vacuum connection configured to be coupled to the conduit, a vacuum pump, an analog electronic pressure sensor in electrical communication with the vacuum pump, and a passive valve assembly. The passive valve assembly is in fluid communication with (1) the vacuum pump, (2), the analog electronic pressure sensor, and (3) the vacuum connection, and is configured to maintain the vacuum pump in fluid communication with the vacuum connection within a predefined pressure range, and to passively inhibit fluid communication between the vacuum pump and the vacuum connection outside of the predefined pressure range.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: April 21, 2020
    Assignee: Healyx Labs, Inc.
    Inventors: Madeline Sides, Robert Hutton, James McCrea, Lawson Fisher
  • Patent number: 10556045
    Abstract: Embodiments of negative pressure wound therapy systems and methods for operating the systems are disclosed. In some embodiments, a system includes a pump assembly, canister, and a wound dressing configured to be positioned over a wound. The pump assembly, canister, and wound dressing can be fluidically connected to facilitate delivery of negative pressure to the wound. The system can be configured to deliver negative pressure based at least on a sensed pressured in a fluid flow path connecting a pump of the pump assembly and the wound dressing. The sensed pressure can be sampled, in some embodiments, synchronous with operation of the pump and can be used for controlling the pump. Increased efficiency, diminished noise and vibration caused by operation of the pump, reduced in energy usage, and better comfort for the patient can be attained.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: February 11, 2020
    Assignee: Smith & Nephew, Inc.
    Inventors: Raymond Carr, William W. Gregory, Felix C. Quintanar
  • Patent number: 10406037
    Abstract: Disclosed herein are several embodiments of a negative pressure appliance and methods of using the same in the treatment of wounds. Some embodiments are directed to improved fluidic connectors or suction adapters for connecting to a wound site, for example using softer, kink-free conformable suction adapters.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: September 10, 2019
    Assignee: Smith & Nephew, Inc.
    Inventors: Sean Albert, Ed Armstrong, Ken Beaudoin, Iain Michael Blackburn, Phil Bussone, Brendan Crawford, Robert Emmerson, Mike Ewaschuk, Stephen Gianelis, Andrew Goddard, Joseph Gordon, Mark Guarraia, Tim Johnson, Darwin Keith-Lucas, Andrew Linton, Dan Nelsen, Michael Salame, Tim Stern, Mark White
  • Patent number: 10238860
    Abstract: A pad for electrically stimulated wound healing, including a pad configured to be placed on a wound, at least one anode disposed on the pad to contact the wound, and at least one cathode disposed on the pad to contact the wound, the at least one cathode being disposed separately from the at least on anode. The pad wherein the at least one anode and the at least one cathode in contact with the wound provide a flow of electrical current in an intended direction through the wound based on the separate locations of the at least one anode and the at least one cathode.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: March 26, 2019
    Inventor: Morton M. Mower
  • Patent number: 10155074
    Abstract: An apparatus and system for treating a wound having a cavity is disclosed. The apparatus has a scaffold including a scaffold lamina and a tissue lamina wherein the scaffold lamina forms a laminate in fluid communication with the tissue lamina. The laminate is rolled into a generally cylindrical shape having two end surfaces. The apparatus further includes a manifold having a port for coupling to a source of reduced pressure and that is positioned in fluid communication with the scaffold to provide reduced pressure to the scaffold lamina and the wound. A method for treating a wound having a cavity is also disclosed and includes positioning a scaffold lamina adjacent a tissue lamina to form a laminate in fluid communication with the tissue lamina, rolling the laminate into a generally cylindrical shape having two end surfaces, and positioning the scaffold within the cavity of the wound.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: December 18, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Larry D. Swain, Michael E. Manwaring, Douglas A. Cornet, Braden King-fung Leung
  • Patent number: 9918733
    Abstract: A method and apparatus for disrupting material at a tissue site is described. A contact layer may be selected for use on the tissue site and positioned adjacent to the tissue site. The contact layer may include walls defining a plurality of through-holes. A sealing member may be positioned over the contact layer and sealed to tissue surrounding the tissue site to form a sealed space enclosing the contact layer. A negative-pressure source may be fluidly coupled to the sealed space. The negative-pressure source may supply negative pressure to the sealed space and the contact layer to draw tissue into the through-holes to form nodules. The negative pressure may be vented from the sealed space to release the nodules.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: March 20, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Shannon C. Ingram, Christopher Brian Locke, Peter Arnold, Timothy Mark Robinson, Christopher A. Carroll, Michael E. Manwaring
  • Patent number: 9750857
    Abstract: Systems and methods for a reduced-pressure interface for connecting a multi-lumen conduit to a distribution manifold. The interface includes a housing having a flange portion and a cavity wall portion. The cavity wall portion forms a cavity having a tissue-facing cavity opening. The interface further includes an attachment device, a conduit port, and a multi-lumen conduit. The attachment device is coupled to a tissue-facing side of the flange portion for coupling the housing to a sealing member. The conduit includes a distal end and a proximal whereby the distal end extends through a conduit aperture and past the cavity wall portion into the cavity. The conduit further includes a primary lumen and a plurality of sensing lumens. The primary lumen and the plurality of sensing lumens extend from the proximal end of the conduit to the distal end. The conduit is adapted to contact the distribution manifold.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: September 5, 2017
    Assignee: KCI Licensing, Inc.
    Inventors: Aidan Marcus Tout, Christopher Brian Locke
  • Patent number: 9681993
    Abstract: Disclosed herein are devices, systems and methods for delivering reduced pressure to a load-bearing wound site. The device can include a distal port configured to connect to a wound dressing positioned over the wound site; a proximal port located a distance from the distal port and configured to connect to a reduced pressure source, and a conduit body having an inner channel extending between the distal port and the proximal port. When the distal port is applied to the wound dressing positioned over the wound site the proximal port is positioned at a non-load bearing location remote from the wound dressing. The inner channel has a non-circular profile having a width larger than a height of the conduit body.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: June 20, 2017
    Assignee: KCI Licensing, Inc.
    Inventors: Kenneth Wu, Darren Ng, Jennifer Lee, Dean Hu
  • Patent number: 9597234
    Abstract: The invention relates to an absorbent dressing comprising an adhesive silicone-coated side strip, which is particularly suitable for use in the care of chronic wounds, such as ulcers or eschars, or acute wounds, such as burns. The absorbent dressing includes a breathable impermeable substrate (4) and an absorbent non-woven fabric (6). The substrate is formed by assembling a continuous film (4a) and an openwork reinforcement that is coated with an adhesive silicone gel (4b) without blocking the openings in the reinforcement. A non-absorbent web (5) is secured to a complementary non-woven fabric (7), such as to encase the above-mentioned absorbent non-woven fabric (6) without being secured at any point to the latter. The encased absorbent non-woven fabric is subsequently assembled to the substrate (4) along part of said silicone-coated surface of the substrate.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: March 21, 2017
    Assignee: URGO RECHERCHE INNOVATION ET DEVELOPMENT
    Inventors: Stéphane Auguste, Jean-Marc Pernot, Anne-Sophie Danerol, Aurelie Charre
  • 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
  • Patent number: 9339416
    Abstract: There is provided a dressing (10) which comprises a cover sheet (20) and an absorbent sheet (30). In one embodiment the cover sheet (20) and absorbent sheet (30) have edges which are coterminous along part of their extent and the cover sheet (20) comprises a portion projecting beyond the edge of the absorbent sheet (30) such that, in use, said portion can overly part of an adjacent dressing. Also provided are methods of using dressings and a kit of parts for forming a patchwork dressing.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: May 17, 2016
    Assignee: Sumed International (UK) Limited
    Inventor: Graham John Collyer
  • Patent number: 9302032
    Abstract: An apparatus and method are disclosed for providing a fluid communication path to a wound site through a drape. The apparatus has a body portion having a lower surface and an upper surface, at least one connection port, at least one suction port and at least one fluid communication passageway between the connection port and the suction port. A connector at an end of at least one tubular conduit is locatable through the drape into an orifice in the connection port to thereby provide a fluid communication path through the drape between the tubular conduit and the wound site.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: April 5, 2016
    Inventors: Neill Bannister, Edward Yerbury Hartwell, Iain Blackburn, Andy Linton, Mark White, Tim Stern
  • Patent number: 9220823
    Abstract: Methods and apparatuses are disclosed for applying negative pressure to a wound site. In some embodiments, the apparatus comprises a source of negative pressure, a processing element, and a memory comprising instructions configured to, when executed on the processing element, cause the apparatus to attempt to generate, via the source of negative pressure, a desired negative pressure at the wound site. If the desired negative pressure has not been generated after a first predetermined period of time, the instructions cause the apparatus to: deactivate the source of negative pressure for a second predetermined period of time, and subsequently attempt to generate the desired negative pressure at the wound site.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: December 29, 2015
    Assignee: SMITH & NEPHEW PLC
    Inventor: Derek Nicolini
  • Patent number: 9216244
    Abstract: An apparatus for connecting multi-lumen conduits may include a conduit adapter and a conduit collar. The conduit adapter may include a housing, a bayonet connector, and a support member connecting the housing and the bayonet connector. The support member has an aperture that permits fluid communication through the support member. One end of the conduit collar is sized for insertion into the housing, and a second end is adapted to receive a first multi-lumen conduit. The housing also is adapted to receive a second multi-lumen conduit. The bayonet connector engages a primary lumen of the first multi-lumen conduit and the second multi-lumen conduit such that the primary lumen of the second multi-lumen conduit fluidly communicates with the primary lumen of the first multi-lumen conduit. The conduit adapter and the conduit collar are capable of 360 degree rotation relative to each other about a common axis.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: December 22, 2015
    Assignee: KCI Licensing, Inc.
    Inventors: Vinay K. Singh, Larry D. Swain, Douglas A. Cornet, Robert Peyton Wilkes, Keith Patrick Heaton, Christopher Brian Locke, Timothy Mark Robinson
  • Patent number: 9211486
    Abstract: A reduced pressure treatment system includes a liquid-collection canister for collecting liquid from a tissue site to which reduced pressure treatment is applied. The canister includes a first space configured to collect the liquid from the tissue site and a filter having a frame and a non-planar filter element. The filter defines a second space within the canister separated from the first space by the filter element. The filter element substantially prevents liquid from passing from the first space into the second space. The filter element substantially allows gaseous communication between the first space and the second space when the second space is exposed to a reduced pressure.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: December 15, 2015
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Aidan Marcus Tout, Benjamin Andrew Pratt
  • Patent number: 9168550
    Abstract: A reusable valve assembly includes a cap that may be removably coupled to the aerosol can. A conduit is coupled to the cap so the conduit is selectively operationally coupled to the aerosol can. A wheel is movably coupled to the cap so the wheel may adjust a rate of delivery of a fluid from the conduit. A tip is operationally coupled to the cap so the tip may selectively direct the delivery of the fluid from the aerosol can.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 27, 2015
    Inventors: Brian Soto, Pedro Soto
  • Publication number: 20150148595
    Abstract: The present disclosure describes a single incision method of placing a drainage catheter in the peritoneal cavity.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 28, 2015
    Inventors: Alison S. Bagwell, Emily A. Reichart
  • Publication number: 20150148785
    Abstract: There are provided devices for applying negative pressure to a wound in an endoluminal surface of a patient to facilitate healing of the wound and methods for use of the devices. The device (69, 94, 134, 140, 156, 164) comprises a flexible porous element with an outer face defined between opposite proximal and distal ends of the porous element. A suction tube (30) for being connected to a suction source externally of the patient's body is in fluid communication with the porous element (14) to apply the negative pressure to the wound via the outer face of the porous element. In some embodiments, the porous element has a longtitudinal passageway (16) for passage of bodily substances of the patient along the lumen defining the endoluminal surface through the porous element. In such embodiments, the device may also have at least one absorbent element (70, 80) for absorbing the bodily substances and which is disposed forwardly or rearwardly of the porous element (14).
    Type: Application
    Filed: March 15, 2013
    Publication date: May 28, 2015
    Inventor: Daniel Eduard KLEINER
  • Publication number: 20150148784
    Abstract: A vacuum-assisted drainage system includes a first porous pad that is permeable to liquids and has a through opening in which a fistula adapter is placed on a film provided with perforations, a cover film for covering the first pad and the wound, and for providing a substantially airtight seal around the wound, wherein in the cover film an opening is provided that surrounds the fistula adapter in a substantially airtight manner, and a second porous pad that is permeable to liquids is positioned partially above the first pad on the cover film and is provided with a sealing film for covering the second pad and for providing a substantially airtight connection to the cover film and around the wound, wherein between the first pad and the second pad air guiding routes are provided that pass through the cover film, and an open drainage line is located within the second pad.
    Type: Application
    Filed: January 24, 2012
    Publication date: May 28, 2015
    Inventors: Steffen Suess, Harry Leibitzki
  • Patent number: 9039678
    Abstract: An apparatus provides micromechanical forces on a wound bed to accelerate healing of a wound. The apparatus includes a pressure chamber having a substantially airtight plunger and an inlet fluidly connected to a first end of a conduit. A constant force spring is operatively connected to apply a constant force to the plunger. A suction cup is in fluid communication with a second end of the conduit.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: May 26, 2015
    Assignee: The Brigham and Women's Hospital, INC
    Inventors: Vishal Saxena, Dennis Orgill, Roberto Rangel
  • Patent number: 9033942
    Abstract: A wound dressing for use in a vacuum wound therapy treatment includes a backing layer for positioning over a wound to define a reservoir in which a reduced pressure may be maintained over the wound. A portal member affixed to the backing layer provides a connection to a reduced pressure source through an opening in an ambient surface. A primary port extends between the opening and a primary aperture in a reservoir surface to providing fluid communication between the reservoir and the reduced pressure source. At least one supplemental port establishes fluid communication between the primary port and a supplemental aperture in the reservoir surface that is distinct and substantially spaced from the primary aperture.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: May 19, 2015
    Assignee: Smith & Nephew, Inc.
    Inventor: Mark A. Vess
  • Patent number: 9028458
    Abstract: The illustrative embodiments described herein are directed to a manually-actuated pump and method for applying reduced pressure at a tissue site. The manually-actuated pump includes at least one variable volume chamber that is manually compressible into a plurality of positions. The manually-actuated pump includes a fixed volume chamber in communication with the at least one variable volume chamber. The manually-actuated pump also includes a filter housing having a hydrophobic filter that prevents liquid from entering the at least one variable volume chamber. The fixed volume chamber is coupled to the at least one variable volume chamber via the filter housing. The filter housing is located in between the at least one variable volume chamber and the fixed volume chamber.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: May 12, 2015
    Assignee: KCI Licensing, Inc.
    Inventors: Keith Patrick Heaton, Ian James Hardman
  • Patent number: 9023012
    Abstract: Systems and methods for a reduced-pressure interface for connecting a multi-lumen conduit to a distribution manifold. The interface includes a housing having a flange portion and a cavity wall portion. The cavity wall portion forms a cavity having a tissue-facing cavity opening. The interface further includes an attachment device, a conduit port, and a multi-lumen conduit. The attachment device is coupled to a tissue-facing side of the flange portion for coupling the housing to a sealing member. The conduit includes a distal end and a proximal whereby the distal end extends through a conduit aperture and past the cavity wall portion into the cavity. The conduit further includes a primary lumen and a plurality of sensing lumens. The primary lumen and the plurality of sensing lumens extend from the proximal end of the conduit to the distal end. The conduit is adapted to contact the distribution manifold.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: May 5, 2015
    Assignee: KCI Licensing, Inc.
    Inventors: Aidan Marcus Tout, Christopher Brian Locke
  • Patent number: 9023001
    Abstract: Thus, systems and methods for a debriding wound vacuum may include a sponge for application to a wound, a flexible sheet for covering and sealing the wound, and a bladder. The bladder may be in fluid communication with at least a portion of the sponge. The bladder preferably contains a debridement substance. A negative pressure device may form part of the system and may be used to apply negative pressure via a hollow tube to the sponge. The negative pressure device may be adapted to apply negative pressure to the sponge via the hollow tube in order form a seal between the flexible sheet and the wound. The systems may also include microelectronic mechanical valves for releasing the debridement substance from the bladder.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: May 5, 2015
    Assignee: Heal-Ex, LLC
    Inventor: Jerome L. Finklestein