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公开(公告)号：US11607343B2
公开(公告)日：2023-03-21
申请号：US16527622
申请日：2019-07-31
申请人： KCI Licensing, Inc.
发明人： Benjamin Andrew Pratt , Christopher Brian Locke , Richard Daniel John Coulthard , Timothy Mark Robinson
摘要： Wounds dressings, systems, and methods are presented that involve using a patient's body heat to enhance liquid removal from the wound dressing through a high-moisture-vapor-transmission-rate drape. Additional heat sources or devices, such as nano-antennas or electrical heating elements, may be added or used separately to enhance the removal liquid from the wound dressing. Other dressings, systems, and methods are presented herein.
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公开(公告)号：US11607342B2
公开(公告)日：2023-03-21
申请号：US16000737
申请日：2018-06-05
申请人： KCI Licensing, Inc.
IPC分类号： A61F13/00 , A61F13/02 , A61L15/26 , A61L15/24 , A61F13/15 , A61F13/511 , A61F13/512 , A61F13/513 , B29C65/78 , B32B3/26 , B32B27/06 , B32B5/18 , B32B27/32 , A61M1/00 , A61B46/20 , A61L15/52 , B29C65/04 , B29L31/00
摘要： A dressing for treating a tissue site with negative pressure may comprise a cover having an adhesive, a manifold, a perforated polymer film, and a perforated silicone gel having a treatment aperture. The cover, the manifold, the perforated polymer film, and the perforated silicone gel may be assembled in a stacked relationship with the cover and the perforated silicone gel enclosing the manifold. The perforated polymer film may be at least partially exposed through the treatment aperture, and at least some of the adhesive may be exposed through the perforated silicone around the treatment aperture.
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公开(公告)号：US11554204B2
公开(公告)日：2023-01-17
申请号：US16961781
申请日：2019-01-15
申请人： KCI Licensing, Inc.
摘要： Systems, apparatuses, and methods for providing negative pressure and/or instillation fluids to a tissue site are disclosed. 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 may comprise 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 may further comprise 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. An illustrative method may comprise positioning a dressing interface having a pH sensor, a temperature sensor, a humidity sensor, and a pressure sensor at a tissue site, and applying reduced pressure to the dressing interface to draw fluids from the tissue interface in contact with the sensors to sense the pH, temperature, humidity, and pressure properties of the fluids flowing from the tissue site. The method may further comprise providing fluid data indicative of such properties to a processing element for processing the fluid data, and transmitting the data to another component in the system.
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公开(公告)号：US11406750B2
公开(公告)日：2022-08-09
申请号：US17045358
申请日：2019-04-09
申请人： KCI LICENSING, INC.
摘要： An indicator configured to be attached to a wound dressing includes first and second parts. The wound dressing is configured to collapse in response to an applied negative pressure. The first and second indicator parts are configured to move relative to one another as the wound dressing is collapsed. The movement of the first and second indicator parts is configured to allow a user to easily visualize the compression of the wound dressing and monitor the application of the negative pressure to the wound dressing. A marker is provided along a top surface of the first part and a window is formed on the second part. The changes in the portion of the marker that is visible in the window as the first part is slid into or under the second part are configured to provide for easier detection of the collapse of the wound dressing by the user.
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公开(公告)号：US11305046B2
公开(公告)日：2022-04-19
申请号：US15874126
申请日：2018-01-18
申请人： KCI Licensing, Inc.
发明人： Richard Daniel John Coulthard , Kevin W. Bendele , James A. Luckemeyer , Christopher Brian Locke
摘要： Systems and methods for purging a negative pressure wound therapy system.
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公开(公告)号：US11278454B2
公开(公告)日：2022-03-22
申请号：US16529615
申请日：2019-08-01
申请人： KCI Licensing, Inc.
摘要： 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.
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公开(公告)号：US11259968B2
公开(公告)日：2022-03-01
申请号：US16360601
申请日：2019-03-21
申请人： KCI Licensing, Inc.
IPC分类号： A61F13/02 , A61F13/00 , B29C59/14 , A61M1/00 , A61L15/26 , A61L15/58 , C08L83/04 , C09J183/04 , B29L31/26 , B29L31/00
摘要： A system for treating a tissue site includes a reduced-pressure source to apply reduced pressure, a manifold in fluid communication with the pressure source to provide reduced pressure to the tissue site, and a drape for adhering to the tissue site to cover the tissue site and the manifold. The drape includes an adhesive layer for sealing the drape to the tissue site to create a sealed space having the manifold therein, and a non-adhesive layer formed from a portion of the adhesive layer. A method for manufacturing a medical drape includes providing a sheet of adhesive material and treating a side of the sheet of adhesive material to form a non-adhesive layer and an adhesive layer. The method laminates a release liner adjacent the adhesive layer.
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公开(公告)号：US11246975B2
公开(公告)日：2022-02-15
申请号：US15571238
申请日：2016-05-08
申请人： KCI Licensing, Inc.
摘要： Systems, assemblies, and methods for providing negative-pressure therapy to a tissue site are described. The system can include an absorbent and a sealing layer configured to cover the absorbent. The system can also include a blister fluidly coupled to the absorbent. The blister may have a collapsed position and an expanded position. A first check valve may be fluidly coupled to the absorbent and the blister and configured to prevent fluid flow from the blister into the absorbent if the blister is moved from the expanded position to the collapsed position. A second check valve may be fluidly coupled to the blister and the ambient environment and configured to prevent fluid flow from the ambient environment into the blister if the blister is moved from the collapsed position to the expanded position.
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公开(公告)号：US11229719B2
公开(公告)日：2022-01-25
申请号：US16473169
申请日：2018-01-03
申请人： KCI Licensing, Inc.
摘要： A 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.
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公开(公告)号：US11207442B2
公开(公告)日：2021-12-28
申请号：US16263178
申请日：2019-01-31
申请人： KCI Licensing, Inc.
IPC分类号： A61F13/02 , A61M1/00 , A61L15/18 , A61F13/00 , G05B19/418 , A61L15/26 , A61L15/44 , A61L15/60 , A61L15/24 , A61L15/28 , A61L15/22 , A61L15/42
摘要： Systems, methods, and apparatuses for increasing liquid absorption are described. Some embodiments may include a dressing having an absorbent layer containing super-absorbent material as well as ionic-exchange media (IEM). In some embodiments, the absorbent layer may include absorbent fibers. The absorbent fibers may each include a super-absorbent core surrounded by a water-permeable layer onto which ionic-exchange media (IEM) may be grafted. As liquid comes into contact with the IEM, its ionic nature may be reduced, therefore protecting the absorbent qualities of the super-absorbent material.
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