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公开(公告)号：US20210177662A1
公开(公告)日：2021-06-17
申请号：US16758745
申请日：2018-05-21
摘要： A wound dressing includes an inelastic absorbent layer, an elastic film, and a plurality of welds. The inelastic absorbent layer is configured to absorb wound fluid and has a first side and a second, wound-facing side. The elastic film is configured to elastically stretch when a stretching force is applied to the wound dressing and elastically recover when the stretching force is removed. The plurality of welds fix the elastic film to the first side of the inelastic absorbent layer such that the elastic film and the inelastic absorbent layer elastically stretch and elastically recover as a unit.
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公开(公告)号：US20210113748A1
公开(公告)日：2021-04-22
申请号：US17253263
申请日：2019-06-11
申请人： KCI LICENSING, INC.
摘要： A wound therapy system includes a therapy unit, a wound dressing and an optional controller. The therapy unit is configured to deliver instillation fluid to a wound site. The wound dressing is formed from a plurality of discrete, individual blocks that are selectively separable from one another along a plurality of separation-lines, allowing the wound dressing to be customized to the shape and size of the wound site. By calculating the remaining blocks that define the wound dressing following customization, the volume of the wound dressing may be determined. The controller may be configured to deliver fluid to the wound site based on this calculated volume. The controller may also optionally be used to gauge the healing of the wound site over time by monitoring the changes in volume of customized wound dressings as wound dressings are replaced during the course of treatment of the wound site.
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公开(公告)号：US20230390116A1
公开(公告)日：2023-12-07
申请号：US18235453
申请日：2023-08-18
申请人： KCI Licensing, Inc.
发明人： David R. MERCER , James SEDDON , Braden King-fung LEUNG , Thomas Alan EDWARDS , Colin J. HALL , Benjamin A. PRATT , Tyler H. SIMMONS
CPC分类号： A61F13/00068 , A61F13/00987 , A61F13/00017 , A61M39/08 , A61F13/00029 , A61M1/85 , A61M1/915 , A61M1/916 , A61M1/918 , A61M1/92 , A61M2039/244
摘要： A treatment system for applying negative pressure therapy and fluid instillation treatment to a tissue site, particularly an abdominal tissue site, is disclosed. In some embodiments, the treatment system may include a dressing member, a plurality of fluid removal pathways, a fluid instillation matrix, a drape, a negative-pressure source, and a fluid instillation source. Instillation fluid may be delivered from the fluid instillation source to the tissue site through the fluid instillation matrix, and negative pressure may be communicated and fluid withdrawn from the tissue site through the plurality of fluid removal pathways.
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公开(公告)号：US20210052788A1
公开(公告)日：2021-02-25
申请号：US17040377
申请日：2019-03-13
申请人： KCI LICENSING, INC.
发明人： Benjamin A. PRATT , Justin A. LONG
摘要： A valve arrangement for administering an instillation and/or negative pressure therapy through at least a first wound dressing and a second wound dressing includes a valve arrangement including a first flow path, a first valve, a second flow path, and a second valve. The first flow path extends between a source port and a first wound dressing port structured for fluid communication with the first wound dressing. The first valve is positioned in the first flow path. The second flow path extends between the source port and a second wound dressing port structured for fluid communication with the second wound dressing. The second valve is positioned in the second flow path.
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公开(公告)号：US20200163803A1
公开(公告)日：2020-05-28
申请号：US16615316
申请日：2018-05-21
发明人： William PIGG , Christopher B. LOCKE , Alexander WAITE , Benjamin A. PRATT , Kyle TURTON , Clinton HILL
摘要： Described herein are dressings comprising a composite island comprising a polyurethane or foam layer coupled to an absorbent layer comprising non-woven gelling fibers. Also described herein are dressings comprising an absorbent layer comprising carboxymethyl cellulose fibers and a backing layer coupled to the absorbent layer. In the respective dressings, the absorbent layer is not elastically deformable under tissue treatment conditions, whereas the polyurethane or foam layer and the backing layer are substantially elastically deformable under tissue treatment conditions. The coupling of the absorbent layer to the polyurethane/foam layer or backing layer renders the coupled structure or the entire dressing substantially elastically deformable under tissue treatment conditions. Methods of eliminating, minimizing, or reducing edema are also described herein.
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公开(公告)号：US20230330316A1
公开(公告)日：2023-10-19
申请号：US18213227
申请日：2023-06-22
申请人： KCI Licensing, Inc.
CPC分类号： A61M1/78 , A61M1/784 , A61F13/0216 , A61M1/98 , A61M1/92
摘要： 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.
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公开(公告)号：US20210393442A1
公开(公告)日：2021-12-23
申请号：US17294580
申请日：2019-11-19
申请人： KCI LICENSING, INC.
摘要： A dressing includes an evaporative film layer having a wound-facing side and a non-wound¬ facing side. The evaporative film layer has a high moisture vapor transfer rate. The dressing includes a carrier film layer coupled to the non-wound-facing side of the evaporative film layer. A plurality of holes extends through the carrier film layer. The dressing includes a superab sorbent layer coupled to the wound-facing side of the evaporative film layer and a wicking layer coupled to the superab sorbent layer. The superab sorbent layer is positioned between the wicking layer and the evaporative film layer. The wicking layer is configured to wick fluid from a wound, the superab sorbent layer is configured to absorb fluid from the wicking layer, and the evaporative film layer and the carrier film layer allow evaporation of fluid from the superabsorbent layer through the holes. The carrier film layer provides structural support to the evaporative film layer.
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公开(公告)号：US20200338245A1
公开(公告)日：2020-10-29
申请号：US16758271
申请日：2018-10-23
申请人： KCI LICENSING, INC.
IPC分类号： A61M1/00
摘要： A canister for a negative pressure wound therapy device includes a receptacle, a lid, and a port cover. The receptacle is configured to contain wound exudate collected from a wound site. The lid is configured to attach to the receptacle and includes a port extending through the lid. The port cover is pivotally attached to the lid and configured to pivot between a closed position in which the port cover covers the port and an open position in which the port cover uncovers the port. The port cover includes a buoyant float configured to float in the wound exudate and a non-buoyant mass configured to sink in the wound exudate. The buoyant float and the non-buoyant mass cause the port cover to pivot between the closed position and the open position responsive to a level of the wound exudate within the receptacle and/or an orientation of the receptacle.
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公开(公告)号：US20200046395A1
公开(公告)日：2020-02-13
申请号：US16657674
申请日：2019-10-18
申请人： KCI Licensing, Inc.
IPC分类号： A61B17/322
摘要： Methods, devices and systems are disclosed for generating and harvesting skin grafts having improved properties and for ensuring efficient and consistent blister formation and/or reducing patient harm and discomfort. In one aspect, the invention infuses a fluid into skin tissue at the donor site to enhance blister formation. The fluid infusion can occur before or after application of negative pressure—or can be cyclically applied before or after repeated applications of negative pressure.
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公开(公告)号：US20240024562A1
公开(公告)日：2024-01-25
申请号：US18226406
申请日：2023-07-26
申请人： KCI Licensing, Inc.
发明人： Benjamin A. PRATT , Justin R. RICE
IPC分类号： A61M1/00
CPC分类号： A61M1/743 , A61M1/78 , A61M1/85 , A61M1/742 , A61M2205/3334 , A61M2205/3344 , A61M2205/3569 , A61M2205/702 , A61M2205/7536
摘要： A tubeset module includes one or more elements of a negative pressure wound therapy (“NPWT”) system, such as a valve, a calibrated leak, a pressure sensor, etc. The tubeset module may communicate with a controller of the NPWT system via a communications interface provided by the tubeset module. The communication between the tubeset module and the controller may be used to fully automate one or more processes involving the operation of the components of the NPWT system included in the tubeset module, allowing the NPWT system to, e.g. estimate a wound site volume, estimate a volume of fluid to be instilled, monitor wound healing progression, etc. without requiring any user interaction or involvement. The tubeset module may be defined by one or more housing elements. The tubeset module may be incorporated into any of the tubing, fluid canister, wound dressing and/or therapy device housing components of the NPWT system.
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