Patents Assigned to KCI Licensing, Inc.
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Patent number: 12268805Abstract: A dressing for treating a tissue site with negative pressure including a tissue interface, a cover, a chamber wall, and a base. The cover may be adapted to be sealed to epidermis proximate the tissue site. The chamber wall may define a pump chamber, wherein the pump chamber may be adapted to be fluidly coupled to the tissue interface. The base may extend from the chamber wall, wherein the base may be fluidly sealed to the cover. The dressing may include an intake valve and an exhaust valve fluidly coupled to the pump chamber. The pump chamber may be compressed to evacuate fluid from the pump chamber through the exhaust valve. The pump chamber may then be expanded to draw’ fluid through the intake valve from the tissue interface. This supplies a negative pressure to the tissue interface which may be adapted to distribute negative pressure across the tissue site.Type: GrantFiled: March 26, 2020Date of Patent: April 8, 2025Assignee: KCI Licensing, Inc.Inventors: Larry Tab Randolph, Sara Cinnamon, Stefan Foulstone, Charles Hartzell, Stephanie Henze, Robert Lane, Colton Sanford
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Patent number: 12156788Abstract: Provided are systems, dressings, and methods suitable for treating a tissue site, such as an incision or linear wound, for example. The systems, dressings, and methods relate to a dressing assembly that may include a dressing bolster, a comfort layer, and a polymeric enhancement layer. The dressing bolster may include foam and may have a first side and a second side. A first side of the comfort layer may be coupled to the second side of the dressing bolster, and a first side of the polymeric enhancement layer may be coupled to the second side of the comfort layer. An opposing second side of the polymeric enhancement layer may be configured to directly contact the tissue site. Other systems, dressings, apparatuses, and methods are disclosed.Type: GrantFiled: July 29, 2020Date of Patent: December 3, 2024Assignee: KCI Licensing Inc.Inventors: Matthew Francis Cavanaugh, II, Prathamesh Madhav Kharkar
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Patent number: 12082997Abstract: A dressing interface for connecting a negative-pressure source to a dressing may have a coupling member comprising an aperture, a first adhesive region having a first region peel strength, and a second adhesive region having a second region peel strength less than the first region peel strength. The dressing interface may further have a flange coupled to the coupling member, and a conduit housing coupled to the flange and extending through the aperture in the contact layer.Type: GrantFiled: January 24, 2020Date of Patent: September 10, 2024Assignee: KCI Licensing, Inc.Inventors: Justin Rice, Matthew Francis Cavanaugh, II, Christopher Brian Locke, Christopher Allen Carroll, Benjamin Stokes, Benjamin Andrew Pratt, Thomas Alan Edwards
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Patent number: 12016991Abstract: A system comprises a negative-pressure source including a pump and an electric motor for maintaining negative-pressure at the wound and a pressure sensor for sensing a wound site pressure (WP). The system further comprises a system controller coupled to the first pressure sensor and the electric motor. The system controller maintains the wound site pressure (WP) within a hysteresis band by the application of power to the electric motor from a battery power source, based upon, at least in part a flow rate (FR) of fluid between the pump and the wound site as determined by the system controller. The hysteresis band including a maximum wound site pressure (WPMax) and a minimum wound site pressure (WPMin).Type: GrantFiled: February 8, 2018Date of Patent: June 25, 2024Assignee: KCI Licensing, Inc.Inventors: Richard Daniel John Coulthard, Christopher Brian Locke
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Patent number: 12004926Abstract: This disclosure includes wound dressings and systems with remote oxygen generation for topical wound therapy and related methods.Type: GrantFiled: September 18, 2018Date of Patent: June 11, 2024Assignees: KCI Licensing, Inc., KCI USA, Inc.Inventors: Justin Alexander Long, Christopher Brian Locke, Alexander Waite
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Patent number: 11998426Abstract: A cutting template for use with a negative pressure wound therapy system includes a substantially rigid body. The body includes a top surface, a bottom surface, a height, and a recess. The top surface is configured to engage a drape layer. The bottom surface is configured to engage a dressing layer. The height is defined between the top surface and the bottom surface. The height is configured to create a gap between the drape layer and the dressing layer. The recess is disposed substantially about a perimeter of the body. The recess is configured to receive an edge of a cutting tool so that an opening is formed in the drape layer when the edge is traversed about the perimeter.Type: GrantFiled: April 5, 2019Date of Patent: June 4, 2024Assignee: KCI Licensing, Inc.Inventors: Christopher A. Carroll, Matthew F. Cavanaugh, II, Shannon C. Ingram, Justin Rice
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Patent number: 11969542Abstract: In some examples, provided is a fluid blockage device for use with a reduced-pressure source for treating a tissue site with reduced pressure. The fluid blockage device may be configured to preclude fluid communication through a port fluidly coupled to the reduced-pressure source when the fluid blockage device contacts a liquid. Other devices, systems, and methods are disclosed.Type: GrantFiled: June 22, 2023Date of Patent: April 30, 2024Assignee: KCI Licensing, Inc.Inventors: Christopher Brian Locke, Benjamin A. Pratt
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Patent number: 11957829Abstract: A system comprises a negative-pressure source including a pump and an electric motor for maintaining negative-pressure at the wound and a pressure sensor for sensing a wound site pressure (WP). The system further comprises a system controller coupled to the first pressure sensor and the electric motor. The system controller maintains the wound site pressure (WP) within a hysteresis band by the application of power to the electric motor from a battery power source, based upon, at least in part a flow rate (FR) of fluid between the pump and the wound site as determined by the system controller. The hysteresis band including a maximum wound site pressure (WPMax) and a minimum wound site pressure (WPMin).Type: GrantFiled: November 21, 2022Date of Patent: April 16, 2024Assignee: KCI Licensing, Inc.Inventors: Richard Daniel John Coulthard, Christopher Brian Locke
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Patent number: 11896464Abstract: A negative pressure wound therapy system includes at least one sensor coupled to a wound dressing for a wound of a patient, and a control circuit. The at least one sensor is configured to output an indication of a displacement of the wound dressing. The control circuit is configured to receive the indication of the displacement of the wound dressing, calculate a therapy parameter corresponding to the indication of the displacement, and output the therapy parameter.Type: GrantFiled: April 8, 2019Date of Patent: February 13, 2024Assignee: KCI Licensing, Inc.Inventors: Christopher Brian Locke, Justin Alexander Long, Timothy Mark Robinson
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Publication number: 20240033131Abstract: 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: ApplicationFiled: September 28, 2023Publication date: February 1, 2024Applicant: KCI Licensing, Inc.Inventors: Christopher Brian LOCKE, Justin Alexander LONG
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Patent number: 11878107Abstract: Dressings, systems, and methods for treating a tissue site with negative pressure are described. The dressing includes a manifold having a first surface and a second surface opposite the first surface, a first layer adjacent to the first surface, and a second layer adjacent to the second surface. The first layer and the second layer each are formed from a polymer film. A plurality of fluid restrictions are formed in the polymer film adjacent to at least the first surface. A first plurality of bonds is formed between the first layer and the second layer. The first plurality of bonds define separable sections of the manifold. A second plurality of bonds is formed between the first layer and the second layer. The second plurality of bonds define a plurality of openings.Type: GrantFiled: June 9, 2020Date of Patent: January 23, 2024Assignee: KCI Licensing, Inc.Inventors: Timothy Mark Robinson, Christopher Brian Locke
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Patent number: 11864980Abstract: In some illustrative examples, a bridge suitable for treating a tissue site may include a bridge sealing member and one or more bridge wicking layers. The bridge sealing member may extend along a length of the bridge, and may define an internal passageway in fluid communication between a receiving end of the bridge and a transmitting end of the bridge. The one or more bridge wicking layers may be disposed within the internal passageway of the bridge sealing member. Other apparatus, systems, and methods are disclosed.Type: GrantFiled: December 17, 2019Date of Patent: January 9, 2024Assignee: KCI Licensing, Inc.Inventors: Christopher Brian Locke, Justin Alexander Long, Benjamin Locke, Benjamin Andrew Pratt, Thomas Alan Edwards, Timothy Mark Robinson
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Patent number: 11839690Abstract: Disclosed herein are embodiments of a wound dressing layer. The wound dressing layer may include an open-cell foam. The foam may have a 50% compression force deflection of not more than about 4.8 kPa. The foam may also have a density of at least 24 kg/m3. The foam may exhibit a density increase of a factor of at least 12 at about ?75 mmHg.Type: GrantFiled: December 14, 2021Date of Patent: December 12, 2023Assignee: KCI Licensing, Inc.Inventors: Christopher Brian Locke, Timothy Mark Robinson
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Patent number: 11839529Abstract: A medical drape for use with a reduced pressure system for providing reduced pressure to a tissue site is described. In some embodiments, the drape may include a flexible film, and an adhesive layer coupled to the flexible film. The adhesive layer may include a first adhesive disposed on a first portion of the flexible film in a first pattern. The first adhesive can be configured to secure the flexible film proximate to the tissue site. The adhesive layer generally includes a second adhesive disposed on a second portion of the flexible film in a second pattern. The second adhesive can be configured to seal the flexible film proximate to the tissue site. The first pattern and the second pattern are preferably registered so that the first portion and the second portion are offset to cover substantially different portions of the flexible film.Type: GrantFiled: May 9, 2022Date of Patent: December 12, 2023Assignee: KCI Licensing, Inc.Inventors: Timothy Mark Robinson, Christopher Brian Locke
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Patent number: 11833290Abstract: A system for applying negative pressure to a joint positioned in a treatment area. The system includes a negative pressure dressing. The negative pressure dressing includes a compressive layer and a sealing layer. The compressive layer includes a first surface and a second, treatment area-facing. The compressive layer further includes a first elongated portion configured to be positioned proximate the joint. The first elongated portion includes a first end and a second end. The compressive layer further includes a second elongated portion spaced from the first elongated portion and configured to be positioned proximate the joint. The second elongated portion includes a first end and a second end. The compressive layer further includes an interconnecting portion extending between the first elongated portion and the second elongated portion. The interconnecting portion is configured to overlie at least a portion of the joint.Type: GrantFiled: October 27, 2020Date of Patent: December 5, 2023Assignee: KCI Licensing, Inc.Inventors: Christopher Brian Locke, Timothy Mark Robinson
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Patent number: 11826234Abstract: A negative pressure wound therapy system includes a wound dressing, at least one pump fluidly coupled to the fluid interface, a pressure sensor fluidly coupled to the wound dressing, a control housing, and an electrical coupler. The wound dressing includes a sealing layer, an absorbent layer adjacent to the sealing layer, and a fluid interface attached to at least one of the sealing layer or the absorbent layer. The at least one pump is configured to apply negative pressure to the fluid interface to draw fluid from the wound dressing via the fluid interface. The pressure sensor is configured to detect a fluid pressure of the wound dressing. The control housing is remote from the wound dressing. The electrical coupler is configured to removably connect the control housing to the at least one pump.Type: GrantFiled: June 14, 2019Date of Patent: November 28, 2023Assignee: KCI Licensing, Inc.Inventor: Christopher B. Locke
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Composite dressings for improved granulation and reduced maceration with negative-pressure treatment
Patent number: 11819387Abstract: Dressings for use in negative pressure therapy and methods of making the dressings are provided herein. The dressings may comprise at least two layers in a stacked configuration. The first layer may comprise a manifold layer and the second layer may comprise a silicone gel layer. The second layer may have perforations to form fluid restrictions that can open and close when used in negative pressure therapy. The perforated second layer may be formed by a first and a second curing step.Type: GrantFiled: June 5, 2018Date of Patent: November 21, 2023Assignee: KCI Licensing, Inc.Inventors: Timothy Mark Robinson, Christopher Brian Locke -
Publication number: 20230363953Abstract: Dressings are provided herein having a manifold and a biopolymer layer. The configuration and/or compressibility of the manifold and the biopolymer layer can allow for reduced tissue ingrowth and promote wound healing. Methods of making and using the dressings are also provided herein.Type: ApplicationFiled: July 26, 2023Publication date: November 16, 2023Applicants: Systagenix Wound Management, Limited, KCI Licensing, Inc.Inventors: Prathamesh Madhav KHARKAR, Kristine M. KIESWETTER, Alexander WAITE
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Patent number: 11813392Abstract: Systems and methods for treating a plurality of tissue sites include a multi-port therapy unit. The multi-port therapy unit includes a plurality of patient-side ports each fluidly coupled to a plurality of conduits and a fluid reservoir fluidly coupled to the plurality of ports. A plurality of pressure sensors are associated with the plurality of patient-side ports to determining a pressure associated with each conduit. A controller is operatively coupled to the plurality of pressure sensors to receive treatment pressure data, monitor pressure for each pressure sensor of the plurality of pressure sensors, and signal an alarm condition if the pressure is outside of a pre-selected range. The system includes a reduced-pressure source fluidly coupled to a dressing at each tissue site through the multi-port therapy unit.Type: GrantFiled: September 11, 2018Date of Patent: November 14, 2023Assignee: KCI Licensing, Inc.Inventors: Christopher Brian Locke, Richard Daniel John Coulthard, James A. Luckemeyer, Richard Marvin Kazala, Jr., Benjamin Andrew Pratt, Timothy Mark Robinson
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Patent number: 11813393Abstract: A wound fluid collection system includes a canister with a chamber fluidly connected to a wound dressing in a tissue site through an inlet and also fluidly connected to a reduced pressure source through an outlet. At least a portion of the canister is collapsible and yet can be maintained in an extended state when exposed to subatmospheric pressure. The canister is releasably attachable to a supporting member.Type: GrantFiled: November 29, 2021Date of Patent: November 14, 2023Assignee: KCI Licensing, Inc.Inventors: Christopher Brian Locke, Aidan Marcus Tout