IP Library Granted Patent US 10,010,454
Granted Patent B2
US 10,010,454 · App. 13/937,947 · Granted Jul 3, 2018

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 (Middlesdrough, GB); Timothy Mark Robinson (Basingstoke, 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 10,010,454
App. No.
13/937,947
Granted
Jul 3, 2018
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 (69)

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

a pad having a peripheral edge;

a drape adapted to cover the pad to form a sealed space containing the pad;

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

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

a sealing layer disposed adjacent to a side of the barrier layer opposite the hair-modification agent, the sealing layer adapted to contact the epidermis.

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 proximate a side of the sealing layer opposite the barrier layer.

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, and the system further comprises a sealing layer configured to be disposed between the hair-modification layer and the epidermis.

12. The system of claim 1 , wherein the hair-modification agent is disposed in a hair-modification layer and the system further comprises a barrier layer configured to be disposed between the hair-modification layer and the epidermis.

13. The system of claim 1 , wherein the hair-modification agent is disposed in a hair-modification layer, and the system further comprises a sealing layer disposed proximate a side of the hair-modification layer.

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

15. The system of claim 14 , wherein the polymer matrix comprises at least one of the following: an acrylic, a silicone, a polyurethane, a hydrogel, and a hydrocolloid.

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

17. The system of claim 1 , wherein the system further comprises an odor layer.

18. The system of claim 17 , wherein the odor layer comprises activated carbon.

19. The system of claim 17 , wherein the odor layer comprises clay.

20. The system of claim 1 , wherein:

the barrier layer is formed from a material selected from the group consisting of polyolefins, silicone, and polyurethane; and

the sealing layer is selected from the group consisting of a soft acrylic, silicone, polyurethane, hydrogel, hydrocolloid, and polyolefin gels.

21. The system of claim 1 , wherein:

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

the sealing layer is disposed proximate a side of the fabric layer; and

the drape is disposed proximate a side of the fabric layer opposite the sealing layer.

22. The system of claim 21 , wherein the fabric layer is a non-woven material.

23. The system of claim 21 , wherein the fabric layer is a woven material.

24. 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.

25. 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.

26. The system of claim 25 , wherein the shell comprises a polyamide shell and the activating device comprises a device that emits light.

27. The system of claim 1 , wherein the pad comprises a porous member having one or more flow channels.

28. The system of claim 1 , wherein the pad comprises a manifold configured to distribute a reduced pressure.

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

a gasket formed into an annulus, the gasket comprising:

a sealing layer having a uniform cross-sectional profile and comprising a sealing agent disposed therein;

a hair-modification layer having a partial wedge cross-sectional profile and comprising a hair-modification agent configured to modify hair on epidermis adjacent the tissue site disposed therein, the hair-modification layer associated with the sealing layer; and

a barrier layer deposed between the sealing layer and the hair-modification layer.

30. The dressing of claim 29 , wherein the hair-modification layer further comprises a continuous phase member.

31. The dressing of claim 29 , wherein the gasket comprises a gel member.

32. The dressing of claim 29 , wherein the hair-modification agent comprises a hair removal agent.

33. The dressing of claim 32 , wherein the hair removal agent comprises at least one of the following: thioglycolic acid, thioglycolate salts, calcium hydroxide, and sulfhydryl compounds.

34. The dressing of claim 29 , wherein the hair-modification agent comprises a hair-growth inhibiting agent.

35. The dressing of claim 34 , wherein the hair-growth inhibiting agent comprises wortmannin.

36. The dressing of claim 29 , wherein the hair-modification layer further comprises a polymer matrix.

37. The dressing of claim 29 , 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.

38. The dressing of claim 29 , further comprising an insulating layer.

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

a treatment pad having a peripheral edge;

a drape adapted to cover the treatment pad to form a sealed space containing the treatment pad;

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 between the drape and epidermis adjacent the tissue site;

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

a sealing layer disposed adjacent to a side of the barrier layer opposite the hair-modification layer, the sealing layer adapted to contact the epidermis.

40. The dressing of claim 39 , wherein the hair-modification layer is coupled to the drape.

41. The dressing of claim 39 , wherein the treatment pad is a manifold.

42. A method for treating a tissue site, the method comprising:

disposing a manifold having a peripheral edge adjacent the tissue site;

disposing a gasket formed into an annulus, the gasket comprising:

a sealing layer having a uniform cross-sectional profile and comprising a sealing agent disposed therein;

a hair-modification layer having a partial wedge cross-sectional profile and comprising a hair-modification agent disposed therein, the hair-modification layer adjacent the peripheral edge of the manifold and adjacent at least a portion of an epidermis; and

a barrier layer deposed between the sealing layer having the sealing agent disposed therein and the hair-modification layer having the hair-modification agent disposed therein; and

disposing a drape over the manifold and the gasket to form a sealed space containing the manifold.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2024
From: 3M INNOVATIVE PROPERTIES COMPANY
To: SOLVENTUM INTELLECTUAL PROPERTIES COMPANY
Reel/Frame 066432/0376 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 25, 2023
From: KCI LICENSING, INC.
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 064718/0544 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Nov 7, 2019
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: KCI USA, INC.; KCI LICENSING, INC.
Reel/Frame 050966/0547 →
RELEASE OF SECURITY INTEREST REEL/FRAME 040098/0268 Recorded Feb 8, 2017
From: WILMINGTON TRUST
To: KCI USA, INC.
Reel/Frame 041666/0320 →
LIMITED THIRD LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Oct 7, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040291/0237 →
SECOND LIEN SECURITY AGREEMENT Recorded Sep 21, 2016
From: KCI USA, INC.; LIFECELL CORPORATION; KCI LICENSING, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 040098/0268 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2013
From: KENDRICK, ROSELLA; HALL, COLIN JOHN; RIDER, ELLIOT JAMES; ROBINSON, TIMOTHY MARK; STOKES, BENJAMIN
To: KCI LICENSING, INC.
Reel/Frame 030766/0868 →
Continuity (2)
Provisional Application 61669395 · Jul 9, 2012
Related Publication 20140012215A1 · Jan 9, 2014