Abdominal Wound Dressing

Patent metadata

Field	Value
Publication number	US-2016354253-A1
Application number	US-201615239456-A
Country	US
Kind code	A1
Filing date	Aug 17, 2016
Priority date	May 9, 2000
Publication date	Dec 8, 2016
Grant date	—

Abstract

An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing manner while also limiting the formation of adhesions that would prevent the removal of the dressing. The dressing comprises a layer of porous foam material enclosed by sheets of elastomeric material punctuated by a number of appropriately placed holes. Multiple layers of porous foam may also be used. A suction tube connector is provided on an upper surface of a layer of foam for connection to a negative pressure source. At least one layer of foam is enclosed in elastomeric material and is placed in direct contact with the tissue within the open wound. Fluids are drawn by negative pressure through the holes positioned in the elastomeric envelope and through the foam.

First claim

We claim:

1 . A method for healing a wound, the method comprising:
disposing an envelope within the wound, wherein the envelope comprises a plurality of apertures to facilitate fluid communication into and out of the envelope; sealing the envelope within the wound with a drape positioned in contact with an area of skin surrounding the wound; and distributing negative pressure through the plurality of apertures to draw fluid from the wound through the envelope.

2 . The method according to claim 1 , further comprising fluidly connecting a tube connector to a sealed space beneath the drape.

3 . The method according to claim 1 , further comprising sizing the envelope to overlap a wound edge prior to disposing the envelope in the wound.

4 . The method according to claim 1 , wherein the drape comprises a protective sheet in contact with an adhesive side of the drape, the method further comprising:
sizing the drape to be capable of contacting the area of skin surrounding the wound; and removing the protective sheet from the drape after sizing the drape and prior to positioning the drape in contact with the area of skin surrounding the wound.

5 . A dressing for removing fluid from a tissue site, the dressing comprising:
an envelope forming a cavity, wherein the envelope comprises a plurality of apertures configured to permit fluid communication into and out of the cavity; a drape configured to seal an area surrounding the tissue site and forming a sealed space over the envelope and the tissue site; and a negative pressure source configured to distribute negative pressure through the plurality of apertures to communicate fluid into and out of the cavity.

6 . The dressing according to claim 5 , further comprising sizing the drape to be capable of contacting an area of skin surrounding the cavity prior to sealing the envelope.

7 . The dressing according to claim 5 , further comprising a tube connector configured to fluidly connect the negative pressure source to the sealed space.

8 . The dressing according to claim 5 , wherein the drape comprises a protective sheet in contact with an adhesive side of the drape, and wherein the protective sheet is configured to be removed from the drape prior to sealing the drape with the area of skin surrounding the tissue site.

9 . A method for healing a wound, the method comprising:
providing a first flexible film having a plurality of holes therein and placing the first flexible film in contact with the wound, the first flexible film having a first, patient-facing side and a second side; sealing a periphery of a second flexible film to a periphery of the first flexible film to form an envelope, the second flexible film having a plurality of holes; sealing the envelope within the wound with a drape positioned in contact with an area of skin surrounding the wound; and providing a negative pressure to the envelope for drawing a flow of exuded fluids from the wound.

10 . The method according to claim 9 , wherein the plurality of holes of the first flexible film are offset from the plurality of holes of the second flexible film.

Assignees

• Kci Licensing Inc

Inventors

• Hunt Kenneth William
• Heaton Keith Patrick
• Schroeder Wayne J

Classifications

• A61M2210/1021

  Abdominal cavity · CPC title

• A61L15/22

  containing macromolecular materials · CPC title

• A61L15/26

  Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof {(A61L15/225 takes precedence)} · CPC title

• A61L15/24

  Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof {(A61L15/225 takes precedence)} · CPC title

• A61F2013/0028

  applying of mechanical pressure; passive massage · CPC title