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公开(公告)号：US20200276367A1
公开(公告)日：2020-09-03
申请号：US16796434
申请日：2020-02-20
Applicant: KCI Licensing, Inc.
Inventor： James Seddon , Benjamin A. Pratt
IPC: A61M1/00
Abstract: One implementation of the present disclosure is a method for dynamically controlling an alarm of a negative pressure wound therapy (NPWT) device, according to some embodiments. In some embodiments, the method includes initiating NPWT, comparing an initial pump duty to a threshold value to determine a dressing application quality, monitoring a leakage rate of the NPWT, setting a leak threshold value based on the dressing application quality, determining leakage event occurrences in response to the leakage rate exceeding the leak threshold value at multiple times, adjusting the leak threshold value based on at least one of a number of the leakage events over the time period, a time duration between sequentially occurring leakage events of the leakage events, and the dressing application quality, and causing a user interface device to display a leak alert in response to the leakage rate exceeding the adjusted leak threshold value.
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112.发明申请公开(公告)号：US20200276058A1
公开(公告)日：2020-09-03
申请号：US16876299
申请日：2020-05-18
Applicant: KCI Licensing, Inc.
Inventor： Christopher Brian LOCKE , John ELWOOD
IPC: A61F13/00 , A61F13/02 , B23K26/00 , B23K26/38 , B32B5/18 , B32B7/06 , B32B7/12 , B32B27/06 , B32B27/30 , B32B27/32 , B32B37/12 , B32B37/18
Abstract: A dressing for treating tissue with negative pressure may be a composite of dressing layers, including a release film, perforated gel layer, a perforated polymer film, a manifold, and an adhesive cover. A method of manufacturing the dressing may comprise providing a first layer, such as the gel layer, on a substrate, perforating the first layer on the substrate to create a plurality of apertures in the first layer, and creating an index of the plurality of apertures in the first layer. A laser can be calibrated based on the index. A second layer, such as the polymer film, may be coupled to the first layer, and a plurality of slots can be cut in the second layer with the laser. Each of the slots can be cut through one of the apertures in the first layer based on the index.
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公开(公告)号：US20200268561A1
公开(公告)日：2020-08-27
申请号：US16755814
申请日：2018-08-29
Applicant: KCI Licensing, Inc.
Inventor： Christopher Brian LOCKE , Justin Alexander LONG , Benjamin LOCKE , Benjamin Andrew PRATT , Thomas Alan EDWARDS
Abstract: An evaporative bridge dressing that may be used with negative-pressure treatment of tissue. The evaporative bridge dressing may have one or more fluid transfer layers comprised of high-density wicking material enclosed between layers of film having high moisture-vapor transfer rates to reduce liquid storage and minimize pressure drop.
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公开(公告)号：US10743900B2
公开(公告)日：2020-08-18
申请号：US15884149
申请日：2018-01-30
Applicant: KCI Licensing, Inc.
Inventor： Shannon C. Ingram , Christopher Brian Locke , Peter Arnold , Timothy Mark Robinson , Christopher A. Carroll , Michael E. Manwaring
Abstract: A method and apparatus for disrupting material at a tissue site is described. A contact layer may be selected for use on the tissue site and positioned adjacent to the tissue site. The contact layer may include walls defining a plurality of through-holes. A sealing member may be positioned over the contact layer and sealed to tissue surrounding the tissue site to form a sealed space enclosing the contact layer. A negative-pressure source may be fluidly coupled to the sealed space. The negative-pressure source may supply negative pressure to the sealed space and the contact layer to draw tissue into the through-holes to form nodules. The negative pressure may be vented from the sealed space to release the nodules.
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公开(公告)号：US10736788B2
公开(公告)日：2020-08-11
申请号：US15958773
申请日：2018-04-20
Applicant: KCI Licensing, Inc.
Inventor： Christopher Brian Locke , Timothy Mark Robinson , Robert Tuck , Gareth Stephenson
Abstract: Systems, apparatuses, and methods for closing an opening through a surface of a tissue site are described. The system includes a sealing member adapted to cover the opening to form a sealed space and a negative-pressure source adapted to be fluidly coupled to the sealed space to provide negative pressure to the sealed space. The system also includes a contracting layer adapted to be positioned adjacent the opening and formed from a material having a firmness factor and a plurality of holes extending through the contracting layer to form a void space. The holes have a perforation shape factor and a strut angle causing the plurality of holes to collapse in a direction substantially perpendicular to the opening. The contracting layer generates a closing force substantially parallel to the surface of the tissue site to close the opening in response to application of the negative pressure.
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Patent Agency Ranking
公开(公告)号：US20200246513A1
公开(公告)日：2020-08-06
申请号：US16853399
申请日：2020-04-20
Applicant: KCI Licensing, Inc.
Inventor： Dean HU , Moshe PINTO , Kenton FONG
Abstract: Methods and devices for treatment of damaged tissue are disclosed, including treatment of wounds by employing non-electrically powered, reduced pressure therapy devices. Maintenance and control of the sub atmospheric pressure exerted may be provided by such devices while minimizing discomfort to the user. The devices may be configured to be worn inconspicuously underneath clothing.
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公开(公告)号：US20200237605A1
公开(公告)日：2020-07-30
申请号：US16828597
申请日：2020-03-24
Applicant: KCI Licensing, Inc.
Inventor： Timothy Mark ROBINSON , Christopher Brian LOCKE
Abstract: 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.
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公开(公告)号：US20200229983A1
公开(公告)日：2020-07-23
申请号：US16650809
申请日：2018-09-18
Applicant: KCI Licensing, Inc.
Inventor： Timothy Mark ROBINSON , Justin Alexander LONG
Abstract: A dressing for treating a tissue site, particularly a peritoneal or abdominal site, is disclosed. The dressing may comprise: a substrate; an adherent layer coupled to a surface of the substrate; and a fibrous layer comprising fibers coupled to a surface of the adherent layer opposite the substrate. Typically, the fibrous layer satisfies one or more of the following: at least 75% of the fibers are coupled approximately perpendicular to the surface of the substrate; at least 95% of the fibers in the fibrous layer have a length to diameter aspect ratio from about 10 to about 1000; and no more than 10% of the fibers are coupled approximately tangential to the surface of the substrate. Optionally, the fibrous layer may be formed by a flocking process. Methods of treating various tissue sites using the dressings and negative-pressure therapy are also disclosed.
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公开(公告)号：US20200206395A1
公开(公告)日：2020-07-02
申请号：US16812895
申请日：2020-03-09
Applicant: KCI Licensing, Inc.
Inventor： Christopher Brian LOCKE , Richard Daniel John COULTHARD , Benjamin Andrew PRATT , Timothy Mark ROBINSON
Abstract: Dressings, systems, and methods are disclosed that, in some embodiments, relate to treating a tissue site. In one embodiment, a dressing may include a manifold, a retention pouch, a sealing member, and a conduit interface. The manifold may be adapted to distribute reduced pressure to the tissue site, and the retention pouch may be adapted to retain and manage fluid extracted from the tissue site. The sealing member may cover the retention pouch and the manifold to provide a sealed space with the tissue site. The conduit interface may be in fluid communication with the sealed space and an exterior surface of the sealing member. The dressing may be utilized with a therapy device operable to control reduced pressure in the dressing and fluid flow over the sealing member.
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120.发明申请公开(公告)号：US20200206036A1
公开(公告)日：2020-07-02
申请号：US16644727
申请日：2018-09-04
Applicant: KCI LICENSING, INC.
Abstract: Provided herein is a system and method for mitigating premature light deactivation of light deactivated adhesive drapes. One aspect provides a system comprising a drape, a photosensitive adhesive layer, and a release agent, where the system is adapted to be coupled to a tissue site and released therefrom upon or after exposure to an external stimulus such as certain wavelengths of light. The system may have a filter layer to prevent the photosensitive adhesive from being exposed to deactivation wavelengths prematurely. The filter layer may be printed directly onto the drape and may be removable after exposure to a solvent, such as isopropyl alcohol (IPA). The filter layer may also be a filter adhesive layer. Another aspect provides a method for application and removal of a drape using by removing one or more of the filter layer and/or the filter adhesive layer and applying light to the drape to deactivate the photosensitive adhesive layer and promote easy, clean, and less painful removal of the drape.
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