公开(公告)号：US20130090615A1

公开(公告)日：2013-04-11

申请号：US13691538

申请日：2012-11-30

Applicant: KCI Licensing, Inc.

Inventor： Jonathan Paul Jaeb ,  Richard Daniel John Coulthard ,  Timothy Mark Robinson ,  Christopher Brian Locke ,  Aidan Marcus Tout

IPC: A61F13/00

CPC classification number: A61M1/0049 ,  A61F13/00063 ,  A61F13/00068 ,  A61F2013/00174 ,  A61F2013/00412 ,  A61F2013/00536 ,  A61F2013/00544 ,  A61M1/0031 ,  A61M1/0052 ,  A61M1/0088 ,  A61M1/009 ,  A61M1/0092 ,  A61M2205/15 ,  A61M2205/7536

Abstract: A reduced pressure treatment system includes a reduced pressure source and a reduced pressure dressing. The dressing includes an interface layer adapted to be positioned at a tissue site and an absorbent layer in fluid communication with the interface layer to absorb liquid from at least one of the interface layer and the tissue site. A diverter layer is positioned adjacent the absorbent layer, and the diverter layer includes a plurality of apertures in fluid communication with the absorbent layer to distribute a reduced pressure to the absorbent layer. A cover is positioned over the diverter layer to maintain the reduced pressure at the tissue site.

公开(公告)号：US12016991B2

公开(公告)日：2024-06-25

申请号：US16484635

申请日：2018-02-08

Applicant: KCI Licensing, Inc.

Inventor： Richard Daniel John Coulthard ,  Christopher Brian Locke

IPC: A61M1/00

CPC classification number: A61M1/74 ,  A61M1/73 ,  A61M1/75 ,  A61M1/90 ,  A61M2205/3334 ,  A61M2205/3344 ,  A61M2205/8212

Abstract: 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).

公开(公告)号：US12004926B2

公开(公告)日：2024-06-11

申请号：US16648308

申请日：2018-09-18

Applicant: KCI LICENSING, INC. ,  KCI USA, INC.

Inventor： Justin Alexander Long ,  Christopher Brian Locke ,  Alexander Waite

IPC: A61F13/05 ,  A61M1/00

CPC classification number: A61F13/05 ,  A61M1/85 ,  A61M1/915 ,  A61M1/94 ,  A61M1/964 ,  A61M2202/0208 ,  A61M2205/7536

Abstract: This disclosure includes wound dressings and systems with remote oxygen generation for topical wound therapy and related methods. Some systems include a dressing for facilitating delivery of oxygen to the target tissue, the dressing having: a first manifold that defines a plurality of gas passageways and is configured to allow communication of oxygen to the target tissue; a gas-occlusive layer configured to be disposed over the first manifold and coupled to tissue surrounding the target tissue such that: an interior volume is defined between the gas-occlusive layer and the target tissue; and the gas-occlusive layer limits escape of oxygen from the interior volume between the gas-occlusive layer and the tissue surrounding the target tissue; a container outside the interior volume, the container having a sidewall that defines a chamber configured to be in fluid communication with the interior volume; and an oxygen-generating material disposed within the chamber of container and configured to release oxygen when exposed to water.

公开(公告)号：US11969318B2

公开(公告)日：2024-04-30

申请号：US17001073

申请日：2020-08-24

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Timothy Mark Robinson ,  Li Yao

IPC: A61F13/00 ,  A61F13/02 ,  A61F13/0246

CPC classification number: A61F13/0216 ,  A61F13/025 ,  A61F13/0253 ,  Y10T156/1056

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.

公开(公告)号：US11950984B2

公开(公告)日：2024-04-09

申请号：US17374467

申请日：2021-07-13

Applicant: KCI Licensing, Inc.

Inventor： Benjamin Andrew Pratt ,  Christopher Brian Locke ,  Timothy Mark Robinson

IPC: A61F13/02 ,  A61F13/00

CPC classification number: A61F13/00068 ,  A61F13/00029 ,  A61F13/0216

Abstract: In some embodiments, a dressing assembly may include a dressing bolster, an interface seal, and a base layer. The dressing bolster may include a first side, a second side, and a periphery. The interface seal may be coupled at the periphery of the dressing bolster. The base layer may include a base layer flange configured to be coupled to the dressing and to extend beyond the periphery of the dressing bolster. The dressing assembly may be suitable for treating a tissue site with reduced pressure and for creating an apposition force between a first portion of the tissue site and a second portion of the tissue site. Other systems, apparatus, and methods are disclosed.

公开(公告)号：US11944520B2

公开(公告)日：2024-04-02

申请号：US16746425

申请日：2020-01-17

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Timothy Mark Robinson

IPC: A61F13/00 ,  A61F13/02 ,  A61F13/0246 ,  A61M1/00 ,  B32B3/26 ,  B32B27/08 ,  B32B27/28 ,  B32B27/30 ,  C09J7/20 ,  A61B46/20

CPC classification number: A61F13/00068 ,  A61F13/00059 ,  A61F13/00063 ,  A61F13/0216 ,  A61F13/023 ,  A61F13/0253 ,  A61F13/0256 ,  A61M1/915 ,  B32B3/266 ,  B32B27/08 ,  B32B27/283 ,  B32B27/308 ,  C09J7/20 ,  A61B2046/205 ,  A61F2013/00289 ,  A61M1/962 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2307/7242 ,  B32B2535/00 ,  C09J2301/18 ,  C09J2301/208 ,  Y10T156/1056

Abstract: Systems, kits, methods of manufacturing, and a sealing member for creating a sealed space are described. The sealing member can include a film layer and a first adhesive layer coupled to the film layer. The sealing member can also include a second adhesive layer coupled to the first adhesive layer. A plurality of apertures may extend through the second adhesive layer. Each aperture can expose at least a portion of the first adhesive layer through the second adhesive layer. A plurality of polymer particles may be disposed in the first adhesive layer. The polymer particles can be configured to dissolve in response to interaction with a switching solution.

公开(公告)号：US11938263B2

公开(公告)日：2024-03-26

申请号：US17636233

申请日：2020-09-22

Applicant: KCI Licensing, Inc.

Inventor： Justin Alexander Long ,  Christopher Brian Locke ,  Thomas Alan Edwards

IPC: A61M1/00

CPC classification number: A61M1/74 ,  A61M1/85 ,  A61M1/96 ,  A61M1/912 ,  A61M1/94 ,  A61M2205/0294 ,  A61M2205/3331

Abstract: This disclosure describes devices, systems, and methods related to therapy devices including pumps that are operable in multiple operating modes. An exemplary wound therapy device includes a pump configured to be worn by a user and a controller coupled to the pump and configured to transition the pump from operating in a first operating mode to operating in a second operating mode responsive to a pressure of the wound therapy device satisfying a first pressure threshold. The first operating mode is associated with a first drive voltage that is different from a second drive voltage associated with the second operating mode.

公开(公告)号：US11911556B2

公开(公告)日：2024-02-27

申请号：US16891594

申请日：2020-06-03

Applicant: KCI Licensing, Inc.

Inventor： David Richard Mercer ,  Christopher Brian Locke ,  Benjamin Andrew Pratt

IPC: A61M1/00 ,  A61M3/02

CPC classification number: A61M1/92 ,  A61M1/77 ,  A61M1/85 ,  A61M1/915 ,  A61M3/0254 ,  A61M1/916 ,  A61M2205/15 ,  A61M2205/18 ,  A61M2205/583 ,  A61M2205/8206 ,  A61M2207/00 ,  A61M2210/1021

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.

公开(公告)号：US11883578B2

公开(公告)日：2024-01-30

申请号：US16168426

申请日：2018-10-23

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Thomas Edwards

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

CPC classification number: A61M1/73 ,  A61F13/00068 ,  A61F13/0216 ,  A61M1/90 ,  A61M1/913 ,  A61M1/915 ,  A61M1/92 ,  A61M1/966 ,  A61F13/0223 ,  A61F2013/00536 ,  A61M1/74 ,  A61M2205/3344

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 side-by-side 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, for example, the apparatus may comprise a first layer of polymeric film having an outer surface, an inner surface, and a plurality of features extending from the inner surface, and a second layer of polymeric film coupled to the first layer. The second layer may have an outer, tissue-facing surface and an inner surface coupled to the first layer and covering the plurality of features to form an enclosed space with the inner surface of the first layer and a plurality of flow channels within the enclosed space. The second layer also includes an aperture defining the recessed space adapted to fluidly coupling the enclosed space to the tissue interface.

公开(公告)号：US11839690B2

公开(公告)日：2023-12-12

申请号：US17644296

申请日：2021-12-14

Applicant: KCI Licensing, Inc.

Inventor： Christopher Brian Locke ,  Timothy Mark Robinson

IPC: A61F13/00 ,  A61L15/42 ,  A61L15/26

CPC classification number: A61L15/425 ,  A61F13/00068 ,  A61L15/26

Abstract: 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.