公开(公告)号：US20220354701A1

公开(公告)日：2022-11-10

申请号：US17621157

申请日：2020-05-19

Applicant: KCI Licensing, Inc.

Inventor： Prathamesh Madhav KHARKAR ,  Diwi L. ALLEN ,  Marisa SCHMIDT ,  Christopher Allen CARROLL

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

Abstract: Dressings for treating a tissue site with negative pressure are disclosed, which may include a dressing having multiple layers and incorporating a material adapted to neutralize proteolytic enzymes. In one example embodiment, a dressing may include a first layer comprising a hydrophobic gel having a plurality of apertures. A material adapted to neutralize proteolytic enzymes may be applied to a surface of the first layer. The dressing may further include a second layer comprising a fenestrated film and coupled to the first layer. Additionally, the dressing may include a third layer comprising a manifold, which in some instances may be a polymeric foam. The dressing may further include a fourth layer comprising a polymer drape.

公开(公告)号：US20200337719A1

公开(公告)日：2020-10-29

申请号：US16923651

申请日：2020-07-08

Applicant: KCI Licensing, Inc.

Inventor： Shannon C. INGRAM ,  Christopher Brian LOCKE ,  Peter ARNOLD ,  Timothy Mark ROBINSON ,  Christopher Allen CARROLL ,  Michael E. MANWARING

IPC: A61B17/32 ,  A61B17/22 ,  A61M1/00 ,  A61F13/00 ,  A61M27/00

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.

公开(公告)号：US20200306428A1

公开(公告)日：2020-10-01

申请号：US16822306

申请日：2020-03-18

Applicant: KCI Licensing, Inc.

Inventor： Shannon C. INGRAM ,  Christopher Allen CARROLL

IPC: A61M1/00 ,  A61F13/00 ,  A61K31/327

Abstract: In one example embodiment, a system for treating a tissue site is disclosed comprising a dressing adapted to contact the tissue site and provide a fluid seal between a therapeutic environment and a local external environment, and a solution source fluidly coupled to the dressing and adapted to deliver an antimicrobial solution comprising a peroxy α-keto carboxylic acid, such as peroxy pyruvic acid, to the tissue interface. The system may further comprise a negative-pressure source fluidly coupled to the dressing and adapted to provide negative pressure to the therapeutic environment after delivery of the antimicrobial fluid to the therapeutic environment. In another example embodiment, a method for treating a tissue site is disclosed comprising positioning a tissue interface to contact the tissue site, covering the tissue interface and the tissue site with a drape to provide a fluid seal between the therapeutic environment and the local external environment, and delivering an antimicrobial solution comprising peroxy α-keto carboxylic acid to the therapeutic environment before providing negative pressure to the therapeutic environment.

公开(公告)号：US20200237978A1

公开(公告)日：2020-07-30

申请号：US16747194

申请日：2020-01-20

Applicant: KCI Licensing, Inc.

Inventor： Brett L. MOORE ,  Justin RICE ,  Christopher Allen CARROLL

IPC: A61M1/00

Abstract: An apparatus for treating a tissue site comprising a negative-pressure source configured to be fluidly coupled to the tissue site; an instillation source configured to be fluidly coupled to the tissue site; and a controller operatively coupled to the negative-pressure source and to the instillation source. The controller can be configured to operate the negative-pressure source and the instillation source to intermittently deliver negative pressure to the tissue site for a negative-pressure interval and deliver instillation fluid to the tissue site for an instillation interval. A purge volume of instillation fluid may be delivered to the tissue site at a purge frequency. In some examples, the purge volume may be delivered through the second fluid conductor and removed through the first fluid conductor during a negative-pressure interval.

公开(公告)号：US20200237562A1

公开(公告)日：2020-07-30

申请号：US16745075

申请日：2020-01-16

Applicant: KCI Licensing, Inc.

Inventor： Justin RICE ,  Brett L. MOORE ,  Christopher Allen CARROLL ,  Justin Alexander LONG

IPC: A61F13/00 ,  A61F13/02

Abstract: A dressing for treating a tissue site with negative pressure, methods of manufacturing the dressing, and methods of using the dressing are described. The dressing includes a debriding manifold having a plurality of first regions with a first density, and a plurality of second regions with a second density less than the first density. The dressing can include a cover configured to be disposed over the debriding manifold. The cover includes a perimeter extending beyond the debriding manifold.

公开(公告)号：US20200046567A1

公开(公告)日：2020-02-13

申请号：US16534437

申请日：2019-08-07

Applicant: KCI Licensing, Inc.

Inventor： Christopher Allen CARROLL ,  Justin RICE

IPC: A61F13/00 ,  A61M1/00

Abstract: A method and apparatus for disrupting material at a tissue site is described. The apparatus includes a modulating layer formed from an open-cell reticulated foam and positionable adjacent the tissue site. The apparatus also includes a macro-column layer formed from a felted foam and having a plurality of through-holes separated from each other by walls. The macro-column layer is positionable adjacent to the modulating layer. The through-holes form nodules in the tissue site in response to negative pressure.