Patents Assigned to KCI Licensing, Inc.
  • Patent number: 10806834
    Abstract: A bandage has a first sheet overlying a wound and located adjacent to it and a top sheet overlying the first sheet. The first sheet has a plurality of discrete passageways overlying the wound and adapted to communicate negative pressure established by a negative pressure source to the wound.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: October 20, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Alan Wayne Henley, Leigh Marie Moses, Ronald Leslie Sanderson, John Howard, James H. Price, Russell W. Bessette
  • Patent number: 10806835
    Abstract: A method of treating a tissue site is provided. The method includes applying a reduced pressure to a tissue site with a reduced pressure source. A source pressure is monitored at the reduced pressure source, and a differential pressure is determined between the source pressure and the desired tissue site pressure. If a blockage is present between the reduced pressure source and the tissue site, the differential pressure is limited to a first maximum differential pressure. If no blockage is present between the reduced pressure source and the tissue site, the differential pressure is limited to a second maximum differential pressure.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: October 20, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Randall P. Kelch, Xiaolu Zheng, Reuben Walter Edgar, Jr., Jonathan Paul Jaeb, Thomas Paul Lawhorn, Shannon C. Ingram
  • Patent number: 10799623
    Abstract: A method of distinguishing leak detection and canister disengagement in a reduced pressure treatment system includes monitoring an actual power level and a source pressure of a reduced pressure pump. The actual power level is compared to a target power level, and the source pressure is compared to a first alarm pressure and a second alarm pressure. A leak alarm is indicated when the actual power level is greater than the target power level and the source pressure is greater than the first alarm pressure. A canister disengaged alarm is indicated when the actual power level is greater than the target power level and the source pressure is less than the second alarm pressure.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 13, 2020
    Assignee: KCI Licensing, Inc.
    Inventor: Thomas Paul Lawhorn
  • Patent number: 10792337
    Abstract: Provided herein are biologically active solution compositions comprising one or more sacrificial proteolytic enzyme substrates, one or more preservatives, and one or more antimicrobial agents and methods of using the solution compositions to treat tissue sites, in particular chronic wounds. The compositions may be used in conjunction with negative pressure wound therapy to treat tissue sites.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 6, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Braden King-Fung Leung, Ona Whelove, Chester R. Edlund, John R. Harper
  • Patent number: 10792192
    Abstract: According to an illustrative embodiment, a system for treating a wound at a tissue site of a patient comprising a reduced-pressure source to supply reduced pressure, a drape adhering to the tissue site to cover the wound where possible leak passages between the drape and the tissue site may occur, and a seal disposed between the drape and the tissue site, is disclosed. The seal is adapted to react with a fluid to form a sealant substantially filling the passages in response to air leaking through the passages from outside the drape when reduced pressure is applied to the wound. According to another illustrative embodiment, a method for sealing a drape to a tissue site for treating a wound at the tissue site comprising applying the drape to cover the tissue site whereby passages are formed between the drape and the tissue site, positioning a seal between the drape and the tissue site wherein the seal is adapted to react with a fluid to form a sealant for substantially filling the passages, is also disclosed.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: October 6, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Aidan Marcus Tout, Timothy Mark Robinson
  • Patent number: 10792404
    Abstract: A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure, or space between it and the surface of a patient, by forming an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer. The collection material may comprise a material and/or a configuration that permits length changes based upon the length of the corresponding surgical wound or incision.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: October 6, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Dean Hu, Kenton Fong, Moshe Pinto, Kenneth Wu, Craig McGreevy, Brendan Donohoe
  • Patent number: 10792402
    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: February 14, 2018
    Date of Patent: October 6, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Keith Patrick Heaton, Ian James Hardman
  • Patent number: 10792191
    Abstract: Foam wound inserts with high-density and low-density regions, methods for making wound inserts, wound-treatment methods, and wound-treatment systems.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: October 6, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Timothy Mark Robinson, Paul Slack, Christopher Brian Locke, Ben Stokes
  • Patent number: 10792482
    Abstract: Provided are systems and methods for delivery of fluid to a wound therapy dressing. In exemplary embodiments, a pressure source provides negative pressure to a wound dressing and positive pressure to an actuator that expels fluid from a fluid reservoir.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: October 6, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Larry Tab Randolph, Richard Marvin Kazala, Jr., Kevin W. Bendele
  • Patent number: 10786595
    Abstract: According to an illustrative embodiment a method to promote healing of a wound is provided comprising contacting the wound with a biologically active composition comprising a lipoic acid derivative and gelatin. In another embodiment a topical composition is provided, which can be formulated as a homogenous mixture, such as a spray, mist, aerosol, lotion, cream, solution, oil, gel, ointment, paste, emulsion or suspension or applied on a carrier material, such as a bandage, gauze, foam, sponge, hydrogel, hydrocolloid, hydrofiber, occlusive dressing, adhesive composition or scaffold. Methods for producing such a topical composition and carrier material with the topical composition applied thereto are also disclosed.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: September 29, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Dmitry Zimnitsky, Jenny Finkbiner, Blane Sanders
  • Patent number: 10786608
    Abstract: Apparatuses, systems, and methods for instilling a solution to a tissue site are disclosed. In some embodiments, an instillation regulator may be fluidly coupled to a solution source and to a dressing, and the instillation regulator may draw a solution from the solution source during a negative-pressure interval may instill the solution to the dressing during a venting interval.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: September 29, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, James Killingworth Seddon
  • Patent number: 10786396
    Abstract: A releasable medical drape, and systems and methods having the same, includes at least a liquid-impermeable, vapor-permeable layer, a pressure-sensitive adhesive layer, and a soft-gel layer having a plurality of apertures. The soft-gel layer is configured to be disposed adjacent to a tissue site. A portion of the pressure-sensitive adhesive layer extends through the plurality of apertures in the soft-gel layer to contact the tissue site. The soft-gel layer forms a good seal with the tissue site and the pressure-sensitive adhesive layer extending through the plurality of apertures forms a firm—but releasable—coupling with the tissue site.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: September 29, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson, Li Yao
  • Patent number: 10786607
    Abstract: Illustrative embodiments of new and useful systems and methods for reduced-pressure therapy are described. One example embodiment is a manually-actuated pump for applying reduced-pressure therapy. The pump generally comprises a charging chamber, a regulated chamber, and a regulator passage between the charging chamber and the regulated chamber. A valve body controls fluid communication through the regulator passage, and a regulator spring may be engaged with the valve body to bias the valve body against a differential between a pressure in the regulated chamber and an ambient pressure. The regulator passage may have a bore size adapted deflect the valve body to cause an audible indication of a leak.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: September 29, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Richard Daniel John Coulthard, David George Whyte
  • Patent number: 10780203
    Abstract: The illustrative embodiments described herein are directed to an apparatus, system, and method for storing liquid from a tissue site. The apparatus may include a drape having an aperture, and a fluid pouch coupled to the drape such that the fluid pouch is in fluid communication with the aperture. In one embodiment, the fluid pouch is operable to transfer reduced pressure to the aperture such that the liquid from the tissue site is drawn into the fluid pouch. The fluid pouch may have a cavity that stores the liquid that is drawn from the tissue site. In another embodiment, the fluid pouch may include at least one baffle. The fluid pouch may also include a fluid channel at least partially defined by the at least one baffle. The fluid channel may be operable to store liquid from the tissue site when reduced pressure is applied through the fluid channel.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: September 22, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Richard Daniel John Coulthard, Timothy Mark Robinson, Christopher Brian Locke, Aidan Marcus Tout
  • Publication number: 20200289727
    Abstract: A wound dressing includes a cover layer, a tube, and a one-way valve. The cover layer is sealable to skin surrounding a wound site and includes a port extending through the cover layer. The tube includes a first end coupled to the cover layer via the port and a second end including an in-line connector configured to releasably attach the tube to a negative pressure source and detach the tube from the negative pressure source. The one-way valve is located along the tube between the first end and the second end and configured to allow fluid flow through the tube in a first direction from the first end to the second end and prevent fluid flow through the tube in a second direction from the second end to the first end.
    Type: Application
    Filed: December 4, 2018
    Publication date: September 17, 2020
    Applicant: KCI Licensing, Inc.
    Inventor: Christopher B. LOCKE
  • Patent number: 10773000
    Abstract: A system, apparatus, and method for treating a tissue site with reduced pressure includes a connector having a connector body. The connector body includes a cavity and a cavity aperture. The connector also includes a conduit port fluidly coupling a conduit to the cavity. The connector further includes a base adjacent the cavity aperture that is configured to be positioned adjacent a drape. The cavity is configured to be fluidly coupled to a manifold through an aperture of the drape. The connector also includes a sensing probe having a proximal end configured to be fluidly coupled to the conduit and a distal end extending to the cavity aperture. The distal end is configured to be positioned adjacent to and in fluid communication with a manifold.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: September 15, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Benjamin Andrew Pratt
  • Publication number: 20200281678
    Abstract: Provided herein is a system and method for mitigating premature light deactivation of light deactivated adhesive drapes. One aspect provides a system comprising a drape, an adhesive layer, and a release agent, where the system is adapted to be coupled to a tissue site and released therefrom upon or after exposure to an external stimulus such as certain wavelengths of light. The system may have a photochromic layer that may transition between a blocking transmittance state and a non-blocking transmittance state to block or allow certain wavelengths of light to pass through. Some systems may use a combination of a photochromic layer and a filter layer to prevent the adhesive from being exposed to deactivation wavelengths prematurely. Another aspect provides a method for application and removal of a drape using by removing one or more of a photochromic layer and a filter layer and applying light to the drape to deactivate the adhesive layer and promote easy, clean, and less painful removal of the drape.
    Type: Application
    Filed: September 4, 2018
    Publication date: September 10, 2020
    Applicant: KCI LICENSING, INC.
    Inventors: Justin Alexander LONG, Timothy Mark ROBINSON, Christopher Brian LOCKE
  • Patent number: 10765783
    Abstract: Dressings, systems, and methods for treating a tissue site on a patient involve allowing liquids from the tissue site or a priming fluid to evaporate and exit the dressing through a liquid-impermeable, vapor-permeable membrane. The dressing is able to process more liquids than would otherwise be possible without evaporation and potentially to create reduced pressure. Other dressings, systems, and methods are disclosed.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: September 8, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson, Aidan Marcus Tout
  • Patent number: 10765592
    Abstract: A reduced pressure treatment system is provided that includes a canister that is fluidly connected to a tissue site and is configured to receive fluid drawn from the tissue site under the influence of a reduced pressure. A reduced pressure source provides the reduced pressure and is fluidly connected to the tissue site by a fluid communication path, which may include a source conduit, the canister, and a target conduit. A sensing device communicates with the source conduit and is configured to sense a pressure in the source conduit. A valve communicates with the source conduit and is configured to vent the reduced pressure. A processing unit communicates with the sensing device and the valve and is configured to open the valve for a selected amount of time, determine a decay of reduced pressure, and determine a fill status of the canister based on the decay of reduced pressure.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 8, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson, David Robson Blandford
  • Patent number: D895787
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: September 8, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Robert Chilton, III