公开(公告)号：US11779693B2

公开(公告)日：2023-10-10

申请号：US17795784

申请日：2021-03-17

Applicant: KCI Licensing, Inc.

Inventor： Luke Perkins ,  Christopher J. Carroll ,  Shervin Jahanian ,  Jonathan G. Rehbein

IPC: A61M1/00 ,  A61F13/14

CPC classification number: A61M1/915 ,  A61F13/145 ,  A61M1/917 ,  A61M2210/1007

Abstract: Disclosed embodiments may relate to dressings configured to provide negative-pressure wound therapy to a tissue site, while simultaneously shielding a portion of the tissue site from the negative pressure. For example, dressing assembly embodiments may comprise an outer dressing configured for applying negative-pressure wound therapy to a tissue site, and an underlying isolation patch configured for use under the outer dressing. The isolation patch may be configured to seal the portion of the tissue site so that it does not experience the negative pressure. Additionally disclosed are other apparatus, dressings, systems, and methods.

公开(公告)号：US20210128340A1

公开(公告)日：2021-05-06

申请号：US17081243

申请日：2020-10-27

Applicant: KCI Licensing, Inc.

Inventor： Shervin Jahanian ,  Richard Kazala ,  Larry Tab Randolph ,  Jonathan G. Rehbein ,  Tyler H. Simmons

IPC: A61F5/34 ,  A61F5/01

Abstract: A treatment system includes an dressing having a decompression layer and an occlusive layer that secures the dressing about a treatment site, and defines a treatment chamber within which the decompression layer is positioned. Operation of an air displacement device fluidly coupled to the chamber causes the decompression layer to compress away from the tissue site, resulting in a pulling force being imparted onto the treatment site. This decompression of the tissue site increases the perfusion of blood and other fluids, and advantageously may reduce swelling at the treatment site. To increase the degree of lifting of the treatment site, the decompression layer is advantageously constructed to exhibit a parallel plate effect during use of the treatment system. For example, the decompression layer is constructed having a center of stiffness located closer to an outwardly-facing surface of the decompression layer than a tissue-facing surface of the decompression layer.