Reduced-pressure dressings employing tissue-fixation elements

Patent metadata

Field	Value
Publication number	US-12178954-B2
Application number	US-202318389307-A
Country	US
Kind code	B2
Filing date	Nov 14, 2023
Priority date	Jun 24, 2011
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

A reduced-pressure system for treating a tissue site on a patient includes a distribution manifold that adheres to a tissue site to allow retention without external support. The distribution manifold includes a porous member and a tissue-fixation element. The tissue-fixation element maintains the porous member substantially adjacent to the tissue site while a sealing member is applied. In one instance, the tissue-fixation element is a soluble adhesive that partially covers either the tissue-facing side of the porous member or a tissue-facing side of a fluid-permeable substrate layer that is on the tissue-facing side of the porous member. Other systems, distributions manifolds, and methods are presented.

First claim

We claim:

1. A reduced-pressure system for treating a tissue site, comprising:
a porous member comprising a plurality of flow channels for distributing reduced pressure;
a fenestrated film coupled to the porous member;
an adhesive layer coupled to the fenestrated film opposite the porous member; and
a sealing member configured to create a sealed space containing the porous member, wherein the porous member is between the fenestrated film and the sealing member.

2. The system of claim 1 , wherein the porous member comprises foam.

3. The system of claim 1 , wherein the porous member comprises a felted mat.

4. The system of claim 1 , wherein the adhesive layer has a tackiness strength that varies at different locations on the fenestrated film.

5. The system of claim 1 , wherein the adhesive layer partially covers the fenestrated film.

6. The system of claim 1 , wherein the adhesive layer is configured to allow fluid flow between portions of the adhesive layer on the fenestrated film.

7. The system of claim 1 , wherein the adhesive layer comprises a spaced pattern configured to allow fluid flow through the adhesive layer.

8. The system of claim 1 , wherein the adhesive layer comprises an open area configured to allow fluid flow through the adhesive layer and the fenestrated film.

9. The system of claim 1 , wherein the sealing member is coupled to the porous member.

10. The system of claim 1 , wherein the adhesive layer extends beyond the porous member to form an extension portion.

11. The system of claim 10 , wherein the extension portion is configured to aid in off loading forces to the epidermis proximate to the tissue site.

12. A dressing for treating a tissue site with reduced pressure, the dressing comprising:
a first foam member;
a second foam member coupled to the first foam member, the second foam member having a density higher than a density of the first foam member;
an adhesive member coupled to the second foam member; and
a sealing member configured to create a sealed space.

13. The dressing of claim 12 , wherein the adhesive member comprises a pressure-sensitive adhesive.

14. The dressing of claim 12 , wherein the adhesive member is not water-soluble.

15. The dressing of claim 12 , wherein the adhesive member comprises silicone.

16. The dressing of claim 12 , wherein the adhesive member comprises silicone gel.

17. A dressing for treating a tissue site with reduced pressure, the dressing comprising:
an open-cell foam member configured to distribute reduced pressure;
a fenestrated film coupled to the open-cell foam member; and
an adhesive layer coupled to the fenestrated film opposite the open-cell foam member, wherein the adhesive layer includes one or more openings configured to allow fluid flow through the adhesive layer.

18. The dressing of claim 17 , further comprising a sealing member configured to be applied to the tissue site to create a sealed space containing the open-cell foam member.

19. The dressing of claim 17 , wherein the adhesive layer extends beyond the open-cell foam member to form an extension portion.

20. The dressing of claim 17 , further comprising an absorptive member.

Assignees

• Solventum Intellectual Properties Company

Inventors

• Robinson Timothy Mark
• Simmons Tyler H
• Hall Colin John
• Losole Jeanette

Classifications

• A61F13/0253

  characterized by the adhesive material · CPC title

• A61F13/05 Primary

  specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT] · CPC title

• A61F2013/00412

  for use with needles, tubes or catheters · CPC title

• A61F13/025

  having a special distribution arrangement of the adhesive · CPC title

• A61F2013/00536

  for draining or irrigating wounds · CPC title