IP Library Granted Patent US 10,987,252
Granted Patent B2
US 10,987,252 · App. 15/996,820 · Granted Apr 27, 2021

Systems, methods, and devices for treating a tissue site on a mammal having hair proximate the tissue site

Inventors: Rosella Kendrick (Stourbridge, GB); Colin John Hall (Poole, GB); Elliott James Rider (Middlesbrough, GB); Timothy Mark Robinson (Shillingstone, GB); Benjamin Stokes (Ringwood, GB)
Assignee: KCI Licensing, Inc.
A61F13/0246A61F13/0206A61F13/0209A61F13/0213A61F13/0216A61L15/18A61L15/26A61L15/44A61L15/46A61F13/02A61L2300/434
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Quick Facts
Patent No.
US 10,987,252
App. No.
15/996,820
Granted
Apr 27, 2021
Kind
B2
Abstract

Systems, methods, and devices are presented for treating a tissue site and managing hair proximate the tissue site. A composition is provided for inhibiting, removing, or weakening hair proximate the tissue site and for providing an improved fluid seal by a flexible film drape over the tissue site. In some example embodiments, a hair-modification agent is disposed at least proximate a peripheral edge of a treatment manifold between a drape and epidermis proximate a tissue site. The hair-modification agent can be configured to flow over imperfections on the epidermis and to form a fluid seal against the epidermis, and can further be configured to at least substantially weaken hair on the epidermis as the hair encounters the hair-modification agent.

Claims (48)

1. A system for treating a tissue site, the system comprising:

a pad having a peripheral edge;

a hair-modification agent adapted to be disposed adjacent the peripheral edge of the pad and further adapted to modify hair on an epidermis adjacent the tissue site;

a barrier layer disposed adjacent to a side of the hair-modification agent; and

a drape adapted to cover the pad, the hair-modification agent, and the barrier layer to form a sealed space containing the pad, the hair-modification agent, and the barrier layer.

2. The system of claim 1 , wherein the hair-modification agent is dispersed in a continuous phase member with an adhesive.

3. The system of claim 1 , wherein the hair-modification agent is selected from the group consisting of: thioglycolic acid, thioglycolate salts, calcium hydroxide, and sulfhydryl compounds.

4. The system of claim 1 , wherein the hair-modification agent comprises a hair removal agent.

5. The system of claim 1 , wherein the hair-modification agent comprises a hair-growth inhibiting agent.

6. The system of claim 5 , wherein the hair-growth inhibiting agent comprises wortmannin.

7. The system of claim 1 , wherein the hair-modification agent is dispersed in a gel member.

8. The system of claim 1 , wherein the drape has a first side and a second side, and wherein the hair-modification agent covers the second side of the drape.

9. The system of claim 1 , further comprising a release liner disposed adjacent a side of the barrier layer opposite the hair-modification agent.

10. The system of claim 1 , further comprising an insulating layer.

11. The system of claim 1 , wherein the hair-modification agent is disposed in a hair-modification layer.

12. The system of claim 1 , wherein the hair-modification agent is dispersed in a polymer matrix.

13. The system of claim 12 , wherein the polymer matrix comprises at least one of: an acrylic, a silicone, a polyurethane, a hydrogel, and a hydrocolloid.

14. The system of claim 1 , wherein the hair-modification agent is dissolved within a polymer matrix.

15. The system of claim 1 , wherein the barrier layer is formed from a material selected from the group consisting of polyolefins, silicone, and polyurethane.

16. The system of claim 1 , wherein:

the hair-modification agent is impregnated in a fabric layer; and

the drape is disposed adjacent a side of the fabric layer.

17. The system of claim 16 , wherein the fabric layer is a non-woven material.

18. The system of claim 16 , wherein the fabric layer is a woven material.

19. The system of claim 1 , further comprising a fabric layer laminated into the drape, wherein the hair-modification agent is impregnated in the fabric layer.

20. The system of claim 1 , further comprising:

a shell encapsulating the hair-modification agent, the shell having a un-activated state and an activated state, wherein the shell fluidly isolates the hair-modification agent in the un-activated state, and the shell permits fluid communication with the hair-modification agent in the activated state; and

an activating device that is configured to change the shell from the un-activated state to the activated state.

21. The system of claim 20 , wherein the shell comprises a polyamide shell and the activating device comprises a device that emits light.

22. A dressing for treating a tissue site, the dressing comprising:

a gasket, the gasket comprising:

a barrier layer; and

a hair-modification layer comprising a hair-modification agent configured to modify hair on epidermis adjacent the tissue site, the hair-modification layer associated with the barrier layer.

23. The dressing of claim 22 , wherein the hair-modification agent is dispersed in a continuous phase member.

24. The dressing of claim 22 , wherein the hair-modification agent is disposed in a polymer matrix.

25. The dressing of claim 22 , wherein the gasket comprises an annular gel member.

26. The dressing of claim 22 , wherein the hair-modification agent comprises a hair removal agent.

27. The dressing of claim 26 , wherein the hair removal agent comprises at least one of: thioglycolic acid, thioglycolate salts, calcium hydroxide, and sulfhydryl compounds.

28. The dressing of claim 22 , wherein the hair-modification agent comprises a hair-growth inhibiting agent.

29. The dressing of claim 28 , wherein the hair-growth inhibiting agent comprises wortmannin.

30. The dressing of claim 22 , wherein the hair-modification agent is encapsulated within a shell having an un-activated state and an activated state, in the un-activated state the shell fluidly isolates the hair-modification agent and in the activated state the shell permits fluid communication with the hair-modification agent.

31. The dressing of claim 22 , further comprising an insulating layer.

32. A dressing for treating a tissue site, the dressing comprising:

a treatment pad having a peripheral edge;

a hair-modification layer having a hair-modification agent disposed therein, the hair-modification layer adapted to be disposed at least adjacent the peripheral edge of the treatment pad;

a barrier layer between the hair-modification layer and an epidermis; and

a drape adapted to cover the treatment pad, the hair-modification layer, and the barrier layer to form a sealed space containing the treatment pad, the hair-modification layer, and the barrier layer.

33. The dressing of claim 32 , wherein the hair-modification layer is coupled to the drape.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2024
From: 3M INNOVATIVE PROPERTIES COMPANY
To: SOLVENTUM INTELLECTUAL PROPERTIES COMPANY
Reel/Frame 066443/0513 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2023
From: KCI LICENSING, INC.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 064718/0544 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2018
From: KENDRICK, ROSELLA; HALL, COLLIN JOHN; RIDER, ELLIOT JAMES; ROBINSON, TIMOTHY MARK; STOKES, BENJAMIN
To: KCI LICENSING, INC.
Reel/Frame 046310/0088 →
Continuity (3)
Continuation 13937947 · Jul 9, 2013
Provisional Application 61669395 · Jul 9, 2012
Related Publication 20180280203A1 · Oct 4, 2018