Patents Assigned to KCI Licensing, Inc.
  • Publication number: 20220133546
    Abstract: A citric acid containing dressing for treating a tissue site with negative pressure may comprise a cover, a manifold, and a perforated polymer film and/or a sealing layer. The sealing layer can be a perforated silicone gel having a treatment aperture. The dressing can further contain an adhesive. The cover, the manifold, and the perforated polymer film and/or the sealing layer may be assembled in a stacked relationship with the cover and the sealing layer enclosing the manifold. Citric acid may be present on or incorporated in, for example, the perforated polymer film and/or the sealing layer.
    Type: Application
    Filed: May 5, 2020
    Publication date: May 5, 2022
    Applicants: KCI Licensing, Inc., KCI Licensing, Inc.
    Inventors: Justin Alexander LONG, Christopher Brian LOCKE, Timothy Mark ROBINSON
  • Patent number: 11318243
    Abstract: In one example embodiment, a system for treating a tissue site is disclosed that may comprise a manifold including a non-porous film having a plurality of closed cells defined by a sealed region perforated with apertures extending through the sealed region, wherein the manifold is adapted to contact the tissue site. The system may further comprise a cover adapted to provide a fluid seal between a therapeutic environment including the manifold proximate one side of the cover and a local external environment on the other side of the cover. In one embodiment, the plurality of closed cells is adapted to form distal channels with the cover and the apertures are adapted to provide fluid communication between the distal channels and the tissue site. The system may further comprise a negative-pressure source fluidly coupled to the therapeutic environment and adapted to provide negative pressure through the distal channels and the apertures to the tissue site.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 3, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Timothy Mark Robinson, Christopher Brian Locke
  • Patent number: 11318244
    Abstract: A negative pressure wound therapy (NPWT) device includes a canister, a pump, a filter, and a control unit. The canister is configured to collect wound exudate from a wound site. The pump is fluidly coupled to the canister and configured to draw a vacuum within the canister by pumping air out of the canister. The filter is positioned between the canister and the pump such that the air pumped out of the canister passes through the filter in a first direction. The control unit is configured to operate the pump and to purge the filter by causing airflow through the filter in a second direction, opposite the first direction.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: May 3, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin A. Pratt, James K. Seddon, Christopher B. Locke
  • Patent number: 11317839
    Abstract: A collection fitting, system, and method for sampling fluid from a tissue site is described. The collection fitting includes a switch fitting having a first passage and a second passage. The collection fitting also includes a bypass switch coupled to the switch fitting. The bypass switch is operable to fluidly couple the first passage and the second passage through the bypass switch. The bypass switch is also operable to fluidly couple the first passage and the second passage through a specimen container.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: May 3, 2022
    Assignee: KCI Licensing, Inc.
    Inventor: Christopher Brian Locke
  • Patent number: 11318240
    Abstract: A system and method for performing tissue therapy may include applying a reduced pressure to a tissue site of a patient. A fluid parameter associated with applying a reduced pressure to the tissue site may be sensed. An audible fluid leak location sound may be generated in response to sensing the fluid parameter. The audible fluid leak location sound may be altered in response to sensing that the fluid parameter changes. By altering the audible fluid leak location sound in response to sensing a change of the fluid parameter, a clinician may detect location of a fluid leak at the drape by applying force to the drape. The force applied to the drape may be a clinician pressing a finger onto an edge of the drape.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: May 3, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Malcolm G. Thomson, Timothy Mark Robinson, Richard Marvin Kazala, Jr., Christopher Brian Locke, Michael Bernard Beasley, Larry Tab Randolph
  • Patent number: 11318218
    Abstract: Methods and compositions for the treatment of biofilms and/or the inhibition of biofilm formation. In one embodiment, a biofilm is treated and/or biofilm formation is inhibited by a method comprising contacting a biofilm or a surface with a bifunctional ligand comprising a quorum-sensing-peptide-binding region and a protease-binding region, whereby the biofilm is treated and/or biofilm formation on the surface is inhibited.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: May 3, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Rodolfo M. Alarcon, Amy K. McNulty
  • Patent number: 11318233
    Abstract: New and useful systems, methods, and apparatuses for automatically identifying alternative cell chemistries of batteries that power portable electric devices and adjusting the characteristics of such devices in response to the identification of such cells in a reduced-pressure therapy environment are set forth in the appended claims.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: May 3, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Richard Daniel John Coulthard, David Robson Blandford
  • Patent number: 11315245
    Abstract: In one example embodiment, a wound imaging system includes a user interface, a computer processor, and an active contouring module. The user interface is configured to display an image of a wound acquired by the wound imaging system and selectively receive inputs from a user defining an initial perimeter of the wound. An active contouring module is configured to operate on the computer processor to receive the inputs defining the initial perimeter of the wound, identify features of the image on opposing sides of the initial perimeter of the wound, and identify an actual perimeter of the wound based on the initial perimeter of the wound and the identified features. The user interface is further configured to display, on the image of the wound, the actual perimeter of the wound as identified by the active contouring module and selectively receive inputs from the user to modify the actual perimeter of the wound.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: April 26, 2022
    Assignee: KCI Licensing, Inc.
    Inventor: Brett L. Moore
  • Patent number: 11311662
    Abstract: The illustrative embodiments described herein are directed to systems, methods, and apparatuses for applying a reduced pressure to a subcutaneous tissue site. In one instance, a manifold for applying reduced pressure to a subcutaneous tissue site includes a plurality of first conduits, each of the plurality of first conduits having a wall with at least one first aperture and at least one second aperture. At least one of the plurality of first conduits is operable to deliver reduced pressure to the subcutaneous tissue site. The plurality of first conduits is coupled in a spaced arrangement that forms an interior space. The manifold further includes a second conduit comprising the interior space and formed by a portion of each wall of the plurality of first conduits. The second conduit is in fluid communication with the plurality of first conduits via the at least one second aperture.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: April 26, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Justin Alexander Long, Michael E. Manwaring, Douglas A. Cornet
  • Patent number: 11309080
    Abstract: Systems, methods, and apparatuses for treating a tissue site are described. In some embodiments, the system may include a dressing, a negative-pressure source, and a communication device. The communication device may be coupled to the negative-pressure source and configured to transmit operational data of the negative pressure source to a remote location for monitoring usage of the system.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: April 19, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Gregory Phillips, Brian Robey
  • Patent number: 11291760
    Abstract: Methods and devices for treatment of damaged tissue are disclosed, including treatment of wounds by employing non-electrically powered, reduced pressure therapy devices. The devices are capable of generating a substantially constant reduced pressure with low tolerance for pressure fluctuations. Also disclosed herein are reduced pressure therapy systems that comprise an alarm system to detect the depleted state of the suction device and provide an alert to the patient and/or practitioner.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: April 5, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Dean Hu, Thomas Yorkey, Evan Anderson, Kenneth Wu, Tony Coxum
  • Patent number: 11285048
    Abstract: A dressing for treating a tissue site, particularly a peritoneal or abdominal site, is disclosed. The dressing may comprise: first and second layers, each being made from a liquid-impermeable material and being at least partially fenestrated, the layers being coupled together to define a chamber therebetween; and disposed within the chamber a third layer comprising a manifold having a central region, and a perimeter region containing perforations arranged in a pattern defining a plurality of sub-regions. The first and second layers can be coupled using a plurality of welds or bonds through the perimeter region perforations. Optionally, the manifold does not comprise, and the chamber does not contain, any manifolding elements extending outward from an outer edge of the perimeter region.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: March 29, 2022
    Assignee: KCI Licensing, Inc.
    Inventor: Christopher Brian Locke
  • Patent number: 11285256
    Abstract: A negative pressure wound therapy system includes a dressing, a tube, a flow restriction pad, and an in-line filter. The dressing is configured for placement in a wound bed. The tube includes a first end and a second end. The first end is configured to be operably coupled to the dressing. The second end is configured to engage a negative pressure source. The flow restriction pad is configured to be coupled to the dressing proximate the first end of the tube. The flow restriction pad includes a tortuous fluid flow path that is configured to restrict or reduce an amount of a fluid drawn from the dressing into the tube and induce a backpressure between the dressing and the tube. The in-line filter is positioned within the tube between the first end and the second end. The in-line filter configured to substantially prevent the fluid entering the tube.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: March 29, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher B. Locke, Timothy M. Robinson
  • Patent number: 11285247
    Abstract: Body-fluid containers, methods, and systems are presented that include a container that has a container housing formed, at least in part, by a liquid-impermeable, vapor-permeable material. The liquid-impermeable, vapor-permeable material allows water to evaporate and be transmitted outside of the container. The evaporation allows more fluid to be processed by the container than the container could otherwise hold. Other systems, methods, and apparatuses are presented.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: March 29, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Aidan Marcus Tout, Timothy Mark Robinson
  • Publication number: 20220088288
    Abstract: A system for negative-pressure therapy is described. The system includes a dressing configured to be positioned adjacent a tissue site and a piezoelectric pump having at least one inlet and at least one outlet. An adapter is coupled to the piezoelectric pump and configured to be fluidly coupled to the dressing. The adapter is configured to aggregate fluid flow into the at least one inlet. The adapter can have a block. A first recess depends into the block, and a second recess depends into the block from the first recess, the second recess having an area less than the area of the first recess. A bore depends through the block from the second recess to the first side, and a conduit is coupled to the first side and fluidly coupled to the bore.
    Type: Application
    Filed: November 15, 2019
    Publication date: March 24, 2022
    Applicant: KCI Licensing, Inc.
    Inventors: Justin Alexander LONG, Christopher Brian LOCKE
  • Patent number: 11278454
    Abstract: A low-profile dressing interface or connector may comprise at least two side-by-side fluid pathways fluidly coupled to a recessed space of the connector, one for providing negative pressure to a tissue interface and the other for sensing negative pressure within the recessed space adjacent the tissue interface. The apparatus may comprise a top layer having a plurality of closed cells with tapered sidewalls. The apparatus may also comprise a base layer forming a sealed space between the top layer and the base layer. The base layer may further include a plurality of closed cells having tapered sidewalls. The apparatus may then further comprise a barrier coupled between the top layer and the base layer to form two fluid pathways within the sealed space.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 22, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Thomas Alan Edwards, Christopher Brian Locke, Timothy Mark Robinson
  • Patent number: 11273078
    Abstract: Provided are systems, dressings, and methods suitable for treating a tissue site, such as an incision or linear wound. The systems, dressings, and methods relate to a dressing assembly that may include a dressing bolster, sealing members that cover the tissue site and contain the dressing bolster, and a dressing attachment device. The dressing assembly also includes a base layer comprising a sealing member and a base attachment device for releasably coupling the base layer to the epidermis, wherein the dressing attachment device that may releasably coupled to the sealing member base layer. The dressing assembly may also include sealing ring that may be adapted to provide a fluid seal around the tissue site, and to absorb fluids from the tissue site. Other systems, apparatuses, and methods are disclosed.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: March 15, 2022
    Assignee: KCI Licensing, Inc.
    Inventor: Tyler H. Simmons
  • Patent number: 11273249
    Abstract: A wound fluid collection system includes a canister adapted to collect bodily fluids from a tissue site. The canister includes an acoustic transducer adapted and positioned to insonify a cavity within the canister, the cavity being defined by a wall of the canister and the bodily fluids collected within the canister. A resonant frequency may be calculated based on a resulting received signal from the insonification. The resonant frequency may indicate a volume of the cavity within the canister. The difference between a known volume of the canister and the calculated volume of the cavity provides the volume of bodily fluid collected in the canister.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 15, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: James A. Luckemeyer, Christopher Brian Locke
  • Patent number: 11266821
    Abstract: A system and method for providing fluid to a tissue site is described. The method fluidly couples an instillation therapy system to the tissue site and monitors a pressure supplied to the tissue site by a reduced-pressure source with the instillation therapy system for a time period. The method provides fluid to the tissue site with the instillation therapy system in response to the pressure at the tissue site during the time period. The system includes a pressure sensor fluidly coupled to the tissue site to measure a pressure proximate the tissue site. A valve and a flow meter are fluidly between a fluid reservoir and the tissue site. A controller is communicatively coupled to the pressure sensor and the valve and configured to monitor the pressure at the tissue site and a volume of fluid flow to the tissue and, in response, operate the valve.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: March 8, 2022
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Christopher Brian Locke
  • Patent number: 11266770
    Abstract: A wound therapy system includes a wound dressing fluidly connected to a fluid canister. The fluid canister is attached to a canister receiving attachment of a housing structure. A pump is fluidly coupled to the canister and is configured to draw a negative pressure within an interior of the canister. A controller of the wound therapy system is configured to operate the pump to apply a vacuum to the interior of the canister and to obtain one or more measurements representative of at least one or a flow rate of air that is exhausted from the canister interior, a pressure within the canister interior and pump ripple. The controller is configured to estimate the volume of the canister based on the comparison of the measured parameters against model data stored by the controller that is representative of the operation of the therapy system with canisters of varying volumes.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 8, 2022
    Assignee: KCI Licensing, Inc.
    Inventor: Christopher Brian Locke