Apparatuses and methods for wound therapy
View Patent ↗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.
1. A wound treatment apparatus comprising:
a unitary body consisting of a single 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, the secondary wound filler configured to be more compressible in a horizontal plane than in a vertical dimension when subjected to negative pressure.
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 3 , wherein the pre-cuts are formed via laser ablation.
6. The wound treatment apparatus of claim 3 , wherein the pre-cuts are formed via waterjet ablation.
7. The wound treatment apparatus of claim 3 , wherein the pre-cuts are formed via die-cutting.
8. 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.
9. The wound treatment apparatus of claim 8 , wherein the frangible regions are further defined by a second set of parallel pre-cuts formed in the body.
10. The wound treatment apparatus of claim 9 , wherein the frangible regions are further defined by a third set of parallel pre-cuts formed in the body.
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 unitary body consisting of a single 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, the secondary wound filler configured to be more compressible in a horizontal plane than in a vertical dimension when subjected to negative pressure.
19. The method of claim 18 , further comprising positioning the body and the secondary wound filler 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.