Replaceable dressing and method for viewing a tissue site

Patent metadata

Field	Value
Publication number	US-11273078-B2
Application number	US-201716302563-A
Country	US
Kind code	B2
Filing date	May 10, 2017
Priority date	May 20, 2016
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

Provided are systems, dressings, and methods suitable for treating a tissue site, such as an incision or linear wound. The systems, dressings, and methods relate to a dressing assembly that may include a dressing bolster, sealing members that cover the tissue site and contain the dressing bolster, and a dressing attachment device. The dressing assembly also includes a base layer comprising a sealing member and a base attachment device for releasably coupling the base layer to the epidermis, wherein the dressing attachment device that may releasably coupled to the sealing member base layer. The dressing assembly may also include sealing ring that may be adapted to provide a fluid seal around the tissue site, and to absorb fluids from the tissue site. Other systems, apparatuses, and methods are disclosed.

First claim

I claim:

1. A system for treating a tissue site, comprising:
a dressing assembly, comprising:
a dressing bolster having a first side and a second side,
a first sealing member covering the first side of the dressing bolster,
a second sealing member having a first side and a second side including a treatment aperture extending through the second sealing member, a first portion of the first side being coupled to the first sealing member, and
a first attachment device configured to be coupled to the second side of the second sealing member, wherein the first sealing member, the second sealing member, and the first attachment device are configured to provide a sealed space that covers the tissue site;

a base layer, comprising:
a third sealing member having a first side and a second side including a viewing aperture extending through the third sealing member and configurable to surround the tissue site, wherein the first attachment device is adapted to be releasably coupled to the first side of the third sealing member, and
a second attachment device configured to be coupled to the second side of the third sealing member and adapted to be releasably coupled to tissue around the tissue site as defined by the viewing aperture;

one or more dressing release members configured to be releasably coupled to at least a portion of the second side of the second sealing member and the first side of the third sealing member; and
a reduced-pressure source configured to be coupled in fluid communication with the sealed space.

2. The system of claim 1 , wherein the second attachment device has a peel strength and the first attachment device has a peel strength, and wherein the peel strength of the second attachment device is greater than the peel strength of the first attachment device.

3. The system of claim 1 , wherein the second attachment device has a peel strength and the first attachment device has a peel strength, and wherein a ratio of the peel strength of the second attachment device to the peel strength of the first attachment device is greater than about 2.0.

4. The system of claim 1 , wherein the first attachment device is a first adhesive and the second attachment device is a second adhesive.

5. The system of claim 1 , wherein the dressing assembly further comprises a sealing ring disposed adjacent a treatment portion of the dressing bolster.

6. The system of claim 5 , wherein the dressing bolster comprises at least two discrete members placed within abutting edges, and wherein the sealing ring comprises at least two discrete members that have coalesced to form an integral member.

7. The system of claim 5 , wherein the sealing ring includes a viewing aperture configured to be positioned around a circumference of the treatment portion of the dressing bolster.

8. The system of claim 5 , wherein the sealing ring is configured to be positioned at a lateral edge of the treatment portion of the dressing bolster.

9. The system of claim 1 , wherein the dressing assembly further comprises a comfort layer coupled to the second side of the dressing bolster, and wherein at least a portion of the comfort layer is exposed and configured to be positioned directly against the tissue site.

10. The system of claim 9 , wherein the dressing assembly further comprises a sealing ring disposed adjacent a treatment portion of the dressing bolster, the sealing ring being configured to surround the tissue site and the portion of the comfort layer that is exposed.

11. The system of claim 10 , wherein the sealing ring comprises a sealing material laminated onto a drape ring and an adhesive coupling the drape ring to the comfort layer or to the dressing bolster.

12. The system of claim 10 , wherein the sealing ring is coupled to at least a portion of the comfort layer.

13. The system of claim 1 , wherein the first side of the second sealing member includes a second portion covering a portion of the second side of the dressing bolster to form a treatment portion on the second side of the dressing bolster exposed through the treatment aperture.

14. A dressing assembly for applying to a tissue site, comprising:
a dressing bolster having a first side and a second side;
a sealing member having a first side and a second side configured to cover the dressing bolster and to create a sealed space over the tissue site;
a dressing attachment device configured to be coupled to the second side of the sealing member;
a base member having a first side and a second side, the first side adapted to be releasably coupled to the sealing member by the dressing attachment device;
a base attachment device configured to be coupled to the second side of the base member and adapted to be releasably coupled to tissue surrounding the tissue site; and
one or more dressing release members configured to be releasably coupled to at least a portion of the second side of the sealing member and the first side of the base member.

15. The dressing assembly of claim 14 , wherein the base member further includes a viewing aperture extending through the base member.

16. The dressing assembly of claim 14 , wherein the base member further includes a viewing window extending through the base member.

17. The dressing assembly of claim 14 , further comprising a sealing ring comprising an absorbent and having a first side and a second side, the first side of the sealing ring coupled to the second side of the dressing bolster and positioned around a circumference of the dressing bolster, at least a portion of the second side of the dressing bolster being exposed.

18. The dressing assembly of claim 17 , wherein the sealing ring is positioned at a lateral edge of the dressing bolster.

19. The dressing assembly of claim 14 , wherein the dressing assembly further comprises a comfort layer coupled to the second side of the dressing bolster, and wherein at least a portion of the comfort layer is exposed and configured to be positioned directly against the tissue site.

20. The dressing assembly of claim 14 , wherein the dressing bolster has longitudinal cuts and lateral cuts disposed in the first side of the dressing bolster, the longitudinal cuts positioned normal to the lateral cuts.

21. The dressing assembly of claim 14 , further comprising a bottom release member in contact with the second side of the base member by the base attachment device, the bottom release member configured to cover the base member and to be removable from the base member.

22. A method for treating a tissue site, comprising:
disposing a dressing assembly proximate to the tissue site, the dressing assembly comprising a dressing bolster, a sealing member including a dressing attachment device, a base member including a base attachment device, one or more dressing release members configured to be releasably coupled to at least a portion of the sealing member and the base member, and a sealing ring coupled to the dressing bolster;
positioning the base attachment device on tissue surrounding the tissue site to releasably coupled the base member to the tissue surrounding the tissue site;
covering the dressing bolster and the tissue site with the sealing member to releasably couple the dressing attachment device to the base member to form a sealed space between the sealing member and the tissue site; and
extracting fluid from the tissue site into the dressing assembly.

23. The method of claim 22 , further comprising absorbing the fluid from the tissue site int

Assignees

• Kci Licensing Inc

Inventors

• Simmons Tyler H

Classifications

• A61M1/90

  Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing · CPC title

• A61F13/0266

  especially adapted for wound covering/occlusive dressings · CPC title

• A61F13/0216

  Human Necessities · mapped topic

• A61F13/00068 Primary

  Human Necessities · mapped topic

• 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