Wound packing

Patent metadata

Field	Value
Publication number	US-11357903-B2
Application number	US-201916524484-A
Country	US
Kind code	B2
Filing date	Jul 29, 2019
Priority date	Feb 13, 2009
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

A wound packing material is provided, suitable for use in negative pressure wound therapy, including a body of a porous material, the body including frangible regions defining a plurality of portions, the frangible regions allowing the portions to be selectively removed from the body. Methods of manufacturing the wound packing material, and methods of its use are also provided.

First claim

What is claimed is:

1. A wound packing material comprising:
a body of porous material, the body comprising a plurality of outer surfaces and a plurality of outer edges, each of the plurality of outer edges disposed at an interface of a pair of adjacent outer surfaces, each of the outer surfaces delimited by a subset of the plurality of outer edges, the body comprising frangible regions defining a plurality of portions, the frangible regions allowing the portions to be selectively removed from the body, wherein the wound packing material comprises a first partial pre-cut that extends in a first direction from a first outer surface of the body to a second outer surface of the body, wherein the wound packing material comprises a second partial pre-cut that extends in the first direction from the first outer surface of the body to the second outer surface of the body, wherein each of the first and second partial pre-cuts is spaced apart from each outer edge of the subset of outer edges that delimits the first outer surface, and wherein the wound packing material comprises a third partial pre-cut that extends in a second direction from a third outer surface of the body to a fourth outer surface of the body, wherein the third partial pre-cut is spaced apart from each outer edge of the subset of outer edges that delimits the third outer surface.

2. The wound packing material of claim 1 , wherein the plurality of portions can be removed manually.

3. The wound packing material of claim 1 , wherein the wound packing material is formed from a wound packing foam suitable for use in negative pressure wound therapy.

4. The wound packing material of claim 1 , wherein the wound packing material does not substantially collapse when a negative pressure is applied to the wound packing material.

5. The wound packing material of claim 4 , wherein the negative pressure is in the range of from 80 to 125 mm Hg below ambient atmospheric pressure.

6. The wound packing material of claim 1 , wherein the body further comprises an upper surface, a lower surface, and a thickness defined therebetween, the body comprising at least one first partial pre-cut disposed within the thickness, an upper portion of the thickness being disposed between the at least one first partial pre-cut and the upper surface, a lower portion of the thickness being disposed between the at least one first partial pre-cut and the lower surface.

7. The wound packing material of claim 6 , wherein the at least one first partial pre-cut is substantially parallel with the upper surface or the lower surface.

8. The wound packing material of claim 7 , wherein the body further comprises at least one second partial pre-cut that is substantially perpendicular to the upper surface.

9. The wound packing material of claim 8 , wherein the at least one second partial pre-cut is curved.

10. The wound packing material of claim 9 , wherein the at least one second partial pre-cut comprises two or more spaced apart curved planar cuts that are substantially parallel with one another.

11. The wound packing material of claim 10 , wherein the at least one second partial pre-cut comprises an additional curved planar cut that is non-parallel with the two or more spaced apart curved planar cuts.

12. A wound packing material comprising:
a body of porous material, the body comprising a plurality of outer surfaces and a plurality of outer edges, each of the plurality of outer edges disposed at an interface of a pair of adjacent outer surfaces, each of the outer surfaces delimited by a subset of the plurality of outer edges, the body comprising frangible regions defining a plurality of portions, the frangible regions allowing the portions to be selectively removed from the body, wherein the wound packing material comprises a first plurality of partial pre-cuts that extend in a first direction from a first outer surface of the body to a second outer surface of the body, wherein the wound packing material comprises a second plurality of partial pre-cuts that extend in the first direction from the first outer surface of the body to the second outer surface of the body, wherein each of the first plurality of partial precuts and each of second plurality of partial pre-cuts is spaced apart from each outer edge of the subset of outer edges that delimits the first outer surface, and wherein the wound packing material comprises a third plurality of partial pre-cuts that extend in a second direction from a third outer surface of the body to a fourth outer surface of the body, wherein each of the third and fourth outer surfaces is different from the first and second outer surfaces.

13. The wound packing material of claim 12 , wherein the plurality of portions can be removed manually.

14. The wound packing material of claim 12 , wherein the wound packing material is formed from a wound packing foam suitable for use in negative pressure wound therapy.

15. The wound packing material of claim 12 , wherein the wound packing material does not substantially collapse when a negative pressure is applied to the wound packing material.

16. The wound packing material of claim 15 , wherein the negative pressure is in the range of from 80 to 125 mm Hg below ambient atmospheric pressure.

17. The wound packing material of claim 12 , wherein the body further comprises an upper surface, a lower surface, and a thickness defined therebetween, the body comprising at least one first partial pre-cut disposed within the thickness, an upper portion of the thickness being disposed between the at least one first partial pre-cut and the upper surface, a lower portion of the thickness being disposed between the at least one first partial pre-cut and the lower surface.

Assignees

• Smith & Nephew

Inventors

• Greener Bryan

Classifications

• A61F13/00987 Primary

  Apparatus or processes for manufacturing non-adhesive dressings or bandages · CPC title

• A61M1/915

  Constructional details of the pressure distribution manifold · CPC title

• Y10T83/0524

  Plural cutting steps · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• Y10T83/04

  Processes · CPC title