Apparatuses and methods for wound therapy

Patent metadata

Field	Value
Publication number	US-2016166744-A1
Application number	US-201414905266-A
Country	US
Kind code	A1
Filing date	Jul 15, 2014
Priority date	Feb 3, 2012
Publication date	Jun 16, 2016
Grant date	—

Abstract

Some embodiments of the present disclosure relate to a wound packing material, suitable for use in negative pressure wound therapy, comprising a body of a porous material, the body comprising frangible regions defining a plurality of portions, the frangible regions allowing the portions to be selectively removed from the body. The wound packing material can be shaped to partially or fully surround a secondary wound packing member, such as a stabilizing structure. Some embodiments further relate to methods of manufacturing the wound packing material, and to methods of its use.

First claim

1 . A wound treatment apparatus comprising:
a body of a porous material, the body comprising frangible regions defining a plurality of portions, the frangible regions allowing the portions to be selectively removed from the body so as to form a recess in the body, the recess being bound by a bottom surface and a wall portion; and a secondary wound filler for positioning within the recess in the body.

2 . The wound treatment apparatus of claim 1 , wherein the portions can be removed manually.

3 . The wound treatment apparatus of claim 1 , wherein the frangible regions are defined by pre-cuts formed in the body.

4 . The wound treatment apparatus of claim 3 , wherein the pre-cuts are parallel.

5 . The wound treatment apparatus of claim 1 , wherein the frangible regions are defined by a first set of parallel pre-cuts formed in the body.

6 . The wound treatment apparatus of claim 5 , wherein the frangible regions are further defined by a second set of parallel pre-cuts formed in the body.

7 . The wound treatment apparatus of claim 6 , wherein the frangible regions are further defined by a third set of parallel pre-cuts formed in the body.

8 . The wound treatment apparatus of claim 3 , wherein the pre-cuts are formed via laser ablation.

9 . The wound treatment apparatus of claim 3 , wherein the pre-cuts are formed via waterjet ablation.

10 . The wound treatment apparatus of claim 3 , wherein the pre-cuts are formed via die-cutting.

11 . The wound treatment apparatus of claim 1 , wherein the body of porous material is formed from a wound packing foam.

12 . The wound treatment apparatus of claim 1 , wherein the body of porous material comprises a bottom portion, the bottom portion comprising a non-frangible section of porous material.

13 . The wound treatment apparatus of claim 12 , wherein the bottom portion is 5-20 mm thick.

14 . The wound treatment apparatus of claim 1 , further comprising a wound cover configured to be positioned over the body and over the wound closure device and sealed to skin surrounding a wound.

15 . The wound treatment apparatus of claim 1 , further comprising a source of negative pressure.

16 . The wound treatment apparatus of claim 1 , wherein the body of porous material comprises a bowl shaped recess.

17 . The wound treatment apparatus of claim 1 , wherein the body of porous material has a cubic shape.

18 . A method of treating a wound, comprising:
providing a body of porous material, wherein the body comprises frangible regions; removing portions of the porous body such that the body is a desirable shape to fit within a wound; removing portions of the body to create a recess configured to receive a secondary wound filler; and placing the secondary wound filler within the recess.

19 . The method of claim 18 , further comprising positioning the body and the wound closure device within a wound, and covering the body and the secondary wound filler with a wound cover.

20 . The method of claim 19 , further comprising applying negative pressure to the wound through the wound cover, the secondary wound filler and the body.

Assignees

• Smith & Nephew

Inventors

• Hartwell Edward Yerbury

Classifications

• A61F2013/00357

  implanted wound fillings or covers · CPC title

• A61M1/916

  specially adapted for deep wounds · CPC title

• A61M1/915

  Constructional details of the pressure distribution manifold · CPC title

• A61F13/00068

  Human Necessities · mapped topic

• A61F13/00021

  Human Necessities · mapped topic