Wound dressing

Patent metadata

Field	Value
Publication number	US-10413451-B2
Application number	US-65296410-A
Country	US
Kind code	B2
Filing date	Jan 6, 2010
Priority date	Jan 6, 2009
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A composite wound dressing includes an absorbent portion coupled to the vapor permeable backing with a first adhesive and a wound contact portion having a first portion coupled to the absorbent portion with a second adhesive, and the wound contact portion having a second portion coupled to the vapor permeable backing with the first adhesive is disclosed. Further a skin securement portion coupled to the backing portion with the first adhesive, the skin securement portion including a semi-self adherent adhesive, and a void having a first size, wherein at least a portion of absorbent is accessible through the void. The wound contact portion has a size greater than the first size of the void.

First claim

What is claimed is:

1. A composite wound dressing comprising:
a vapor permeable backing portion;
a super absorbent portion coupled to the vapor permeable backing portion with a first adhesive;
a wound contact portion having a first portion coupled to the super absorbent portion with a second adhesive, and the wound contact portion having a second portion that is directly coupled to the vapor permeable backing portion with the first adhesive; and
a skin securement portion coupled to the vapor permeable backing portion with the first adhesive, the skin securement portion including a semi-self adherent adhesive, and a void having a first size,
wherein at least a portion of the super absorbent portion is accessible through the void, and
wherein the wound contact portion has a size greater than the first size of the void.

2. The wound dressing of claim 1 , wherein the skin securement portion comprises a planar sheet having a void, the void first size defined by at least two dimensions.

3. The wound dressing of claim 2 , wherein the vapor permeable backing portion has a size greater in at least one dimension than the first size of the void of the skin securement portion.

4. The wound dressing of claim 1 , wherein the skin securement portion has a first MVTR.

5. The wound dressing of claim 4 , wherein the super absorbent portion has an MVTR greater than the first MVTR of the skin securement portion.

6. The wound dressing of claim 1 , wherein at least a portion of the skin securement portion is configured between the wound contact portion and the vapor permeable backing portion.

7. The wound dressing of claim 6 , wherein the vapor permeable backing portion is coupled to a portion of the super absorbent portion, a portion of the wound contact portion and a portion of the skin securement portion.

8. The wound dressing of claim 1 , wherein the vapor permeable backing portion is substantially liquid impervious.

9. The wound dressing of claim 1 , wherein the semi-self adherent adhesive is adjacent to the wound contact portion.

10. The wound dressing of claim 1 , wherein the wound contact portion is polyurethane foam.

11. The wound dressing of claim 1 , wherein the wound contact portion has at least one dimension greater than the size of the void of the skin securement portion.

12. The wound dressing of claim 1 , wherein the wound contact portion extends from within the void of the skin securement portion such that a non wound facing side of the wound contact portion is adjacent to at least a portion of a skin contact side of the skin securement portion.

13. The wound dressing of claim 1 , wherein the vapor permeable backing portion extends only over the void and adjacent to the super absorbent portion.

14. The wound dressing of claim 1 , wherein the vapor permeable backing portion has a size that is the same as a size as the skin securement portion.

15. The wound dressing of claim 1 , wherein the wound contact portion is a swellable foam material comprising polyurethane.

16. The composite wound dressing of claim 1 , wherein the skin securement portion includes a skin contacting side and a backing layer contacting side, the wound contact portion being coupled to the skin contacting side of the skin securement portion.

17. A composite dressing comprising:
a backing layer;
an absorptive portion comprising a first continuous adhesive, a super absorbent material having super absorbent polymers, a second discontinuous adhesive, and a foam layer, wherein the first continuous adhesive is coupled between the super absorbent material and the backing layer; and
a skin securement layer including a void having a size greater than a size of the absorptive portion.

18. The composite dressing of claim 17 , wherein the super absorbent material is disposed within the void of the skin securement layer.

19. The composite dressing of claim 17 , wherein the skin securement layer includes a skin contacting side and a backing layer contacting side, the foam layer being coupled to the skin contacting side of the skin securement layer.

20. A wound dressing comprising:
a continuous film layer;
a layer of a pattern-coated acrylic first adhesive carried on the film layer;
a border layer of copolyester having a void cut therein, the border layer having a first side and a second side distal to the first side;
a continuous second adhesive layer comprising silicone carried on the first side of the copolyester layer,
wherein the first side is a skin contact side;
an absorbent portion configured within the void and coupled by the first adhesive to the film layer;
a foam layer that covers the void and is coupled to the absorbent portion with a third adhesive, and
wherein the foam layer is coupled to the film layer with the first adhesive, and
wherein the foam layer overlaps the border layer near an edge of the void; and
a release liner.

21. The wound dressing of claim 17 , wherein the foam layer overlaps the border layer near the edge of the void such that the foam layer is directly coupled to the first side of the border layer.

Assignees

• Chakravarthy Debashish
• Medline Ind Inc

Inventors

• Chakravarthy Debashish

Classifications

• A61F13/0279 Primary

  by attaching individual patches on moving webs · CPC title

• A61F13/0203

  with fluid retention members · CPC title