公开(公告)号：US11944738B2

公开(公告)日：2024-04-02

申请号：US16961768

申请日：2019-01-15

Applicant: KCI Licensing, Inc.

Inventor： Justin Alexander Long ,  Benjamin Andrew Pratt ,  Christopher Brian Locke

IPC: A61M1/00

CPC classification number: A61M1/75 ,  A61M1/73 ,  A61M1/96 ,  A61M1/964 ,  A61M1/916 ,  A61M1/984 ,  A61M2205/3324 ,  A61M2205/3331 ,  A61M2205/3368 ,  A61M2205/3576 ,  A61M2205/50

Abstract: Systems, apparatuses, and methods for providing negative pressure and/or instillation fluids to a tissue site. Some embodiments are illustrative of an apparatus or system for delivering negative-pressure and/or therapeutic solution of fluids to a tissue site, which can be used in conjunction with sensing properties of fluids extracted from a tissue site and/or instilled at a tissue site. For example, an apparatus includes a dressing interface or connector that includes a pH sensor, a humidity sensor, a temperature sensor and/or a pressure sensor embodied on a single pad within the connector and proximate the tissue site to provide data indicative of acidity, humidity, temperature and pressure. Such apparatus includes algorithms for processing such data for detecting leakage and blockage as well as providing information relating to the progression of healing of wounds at the tissue site.

公开(公告)号：US11925746B2

公开(公告)日：2024-03-12

申请号：US17602541

申请日：2020-05-05

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Benjamin Andrew Pratt

IPC: A61M1/00

CPC classification number: A61M1/912 ,  A61M1/92 ,  A61M1/96 ,  A61M1/985 ,  A61M2205/3334 ,  A61M2205/3379

Abstract: One implementation of the present disclosure is a negative pressure wound therapy (NPWT) system, according to some embodiments. In some embodiments, the system includes an instillation system configured to provide instillation fluid to a wound site, and a controller. In some embodiments, the wound site includes a wound and a wound dressing. In some embodiments, the controller is configured to provide a first quantity of instillation fluid for a first instillation cycle. In some embodiments, the controller is configured to determine a second quantity of instillation fluid for a second instillation cycle based on the first quantity and a reduction factor. In some embodiments, the second quantity of instillation fluid is less than the first quantity of instillation fluid. In some embodiments, the controller is configured to adjust an operation of the instillation system to provide the second quantity of instillation fluid to the wound site.

公开(公告)号：US11877911B2

公开(公告)日：2024-01-23

申请号：US16681281

申请日：2019-11-12

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Thomas Alan Edwards

IPC: A61F13/00 ,  A61F13/02 ,  A61M1/00 ,  A61M27/00 ,  A61F5/44

CPC classification number: A61F13/00068 ,  A61F13/0223 ,  A61M1/913 ,  A61F2013/0074 ,  A61M1/74 ,  A61M1/915 ,  A61M1/92

Abstract: Systems, apparatuses, and methods for providing negative pressure to a tissue site are disclosed. Illustrative embodiments may include an apparatus or system for delivering negative-pressure to a tissue site, which can be used in conjunction with low-profile distribution components for wound therapy. Such apparatus may include a low-profile dressing interface or connector comprising at least two fluid pathways fluidly coupled to a recessed space of the connector, one for providing negative pressure to a tissue interface or manifold and the other for sensing the negative pressure within the recessed space adjacent the tissue interface. In some embodiments, a pressure-offloading layer may be disposed against at least one of the fluid pathways. The pressure-offloading layer may comprise a polymeric foam to distribute compressive forces being applied to the dressing interface, thereby enhancing resistance of the fluid pathways to collapsing and blockage when the dressing interface is subject to external compression. In some embodiments, two pressure-offloading layers may be utilized.

公开(公告)号：US11819387B2

公开(公告)日：2023-11-21

申请号：US16000368

申请日：2018-06-05

Applicant: KCI Licensing, Inc.

Inventor： Timothy Mark Robinson ,  Christopher Brian Locke

IPC: A61F13/02 ,  A61F13/00 ,  A61M1/00

CPC classification number: A61F13/0216 ,  A61F13/00068 ,  A61F13/0223 ,  A61M1/90 ,  A61F13/0206 ,  A61F13/0213

Abstract: 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.

公开(公告)号：US11697015B2

公开(公告)日：2023-07-11

申请号：US17370239

申请日：2021-07-08

Applicant: KCI Licensing, Inc.

Inventor： Timothy Mark Robinson ,  Christopher Brian Locke ,  James A. Luckemeyer

IPC: A61M39/22 ,  F16K31/122 ,  F16K31/363 ,  A61M1/00 ,  F16K1/38 ,  A61F13/02 ,  A61M3/02

CPC classification number: A61M39/227 ,  A61M1/77 ,  A61M1/85 ,  A61M1/92 ,  A61M3/0254 ,  A61M39/22 ,  A61M39/228 ,  F16K1/38 ,  F16K31/1221 ,  F16K31/1226 ,  F16K31/363 ,  A61F13/0206 ,  A61M1/772 ,  A61M2039/226 ,  Y10S137/907

Abstract: Systems, methods, and apparatuses for irrigating a tissue site are described. The system can include a tissue interface and a sealing member configured to be placed over the tissue site to form a sealed space, and a negative-pressure source fluidly coupled to the sealed space. The system includes an irrigation valve having a housing, a piston disposed in the housing, a fluid inlet to fluidly couple a fluid inlet chamber to a fluid source, and a fluid outlet to fluidly couple a fluid outlet chamber to the sealed space. A piston passage extends through the piston and fluidly couples the fluid inlet chamber and the fluid outlet chamber, and a biasing member is coupled to the piston to bias the irrigation valve to a closed position. The negative-pressure source is configured to move the piston between the closed position and an open position to draw fluid to the sealed space.

公开(公告)号：US11654056B2

公开(公告)日：2023-05-23

申请号：US16717754

申请日：2019-12-17

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Justin Alexander Long ,  Benjamin Locke ,  Benjamin Andrew Pratt ,  Thomas Alan Edwards ,  Timothy Mark Robinson

IPC: A61F13/02 ,  A61F13/00 ,  A61M1/00

CPC classification number: A61F13/00068 ,  A61F13/00029 ,  A61F13/025 ,  A61F13/0216 ,  A61F13/0253 ,  A61M1/80 ,  A61M1/913 ,  A61M1/915 ,  A61M1/985 ,  A61F2013/00246 ,  A61M1/96

Abstract: 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.

公开(公告)号：US11565032B2

公开(公告)日：2023-01-31

申请号：US16781552

申请日：2020-02-04

Applicant: KCI Licensing, Inc.

Inventor： Richard Daniel John Coulthard ,  Christopher Brian Locke

IPC: A61M1/00 ,  A61F13/00 ,  B01D5/00 ,  F28F13/18 ,  B01D45/08

Abstract: A moisture trap for removing liquid from a fluid drawn from a tissue site treated with reduced pressure and systems and methods for using the same are described. The moisture trap may include a barrier adapted to be fluidly coupled to and define an indirect fluid path between a fluid reservoir and a reduced-pressure source. The barrier may have a hydrophilic surface. The moisture trap also may include a sump adapted to receive condensation from the barrier.

公开(公告)号：US11547611B2

公开(公告)日：2023-01-10

申请号：US16648507

申请日：2018-09-21

Applicant: KCI LICENSING, INC.

Inventor： Justin Alexander Long ,  Christopher Brian Locke

IPC: A61F13/00 ,  A61F13/02 ,  A61M1/00

Abstract: This disclosure includes wound dressings and systems with high-flow therapeutic gas sources for topical wound therapy and related methods. Some dressings, which are configured to be coupled to tissue to facilitate delivery of therapeutic gas to the tissue, comprise a manifold that defines a plurality of gas passageways, the manifold configured to allow communication of therapeutic gas to the tissue; and a gas-occlusive layer configured to be disposed over the manifold and coupled to the tissue such that an interior volume containing the manifold is defined between the gas-occlusive layer and the tissue and the gas-occlusive layer limits escape of therapeutic gas from the interior volume; wherein the gas-occlusive layer includes: a first opening configured to allow communication of therapeutic gas into the interior volume; and one or more second openings configured to allow communication of therapeutic gas out of the interior volume.

公开(公告)号：US11511032B2

公开(公告)日：2022-11-29

申请号：US16979684

申请日：2019-01-11

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Timothy Mark Robinson

IPC: A61M1/00 ,  A61F13/00 ,  A61F13/02

Abstract: A dressing for treating a tissue site, particularly an abdominal or peritoneal site, is disclosed. In some embodiments, the dressing may comprise a tissue interface formed from a first layer of a liquid-impermeable material and a plurality of manifolding bubbles formed as part of the first layer. In some embodiments, the tissue interface may further comprise a second layer of a permeable material, where the manifolding bubbles are formed as closed cells between the first layer and the second layer. The tissue interface may also include a third layer of liquid-impermeable material positioned adjacent to the second layer, where one or more fluid passageways may be formed between the second layer and third layer for delivering a therapeutic fluid to the tissue site.

公开(公告)号：US11452640B2

公开(公告)日：2022-09-27

申请号：US16254340

申请日：2019-01-22

Applicant: KCI Licensing, Inc.

Inventor： Justin Alexander Long ,  Timothy Mark Robinson ,  Christopher Brian Locke

IPC: A61F13/00 ,  A61F13/02 ,  A61M1/00 ,  A61M27/00

Abstract: Dressings for closing an opening through a surface of a tissue site are described. The dressing includes a cover adapted to form a sealed space over the opening and a bolster. The bolster is adapted to be positioned adjacent the opening and includes a first plurality of holes. The holes have an average width to length ratio causing the plurality of holes to collapse in a direction substantially perpendicular to the opening. Systems, apparatuses, kits and methods including and/or using the dressing for closing the opening are also described.