Thin film wound dressing

Patent metadata

Field	Value
Publication number	US-10016545-B2
Application number	US-201514696211-A
Country	US
Kind code	B2
Filing date	Apr 24, 2015
Priority date	Jul 21, 2008
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A composite wound dressing and delivery apparatus includes a substantially transparent dressing layer having a lower surface that is coated with a pressure sensitive for applying the dressing layer over a wound to define a reservoir in which a negative pressure may be maintained. A substantially transparent backing layer adhered to the lower surface of the dressing layer in a releasable manner, and a vacuum port is centrally located on the dressing layer. The vacuum port is adapted to provide fluid communication between a vacuum source and the reservoir through the dressing layer. A targeting grid associated with either the dressing layer or the backing layer includes regularly spaced reference marks along at least two axes extending from the vacuum port.

First claim

What is claimed is:

1. A method of treating a wound with negative pressure wound therapy comprising:
placing a wound dressing over the wound, the wound dressing comprising a dressing layer configured to be placed over the wound; and
placing a patch, the patch comprising:
a patch layer configured to prevent leaks, the patch layer comprising an opening,
a patch backing layer adhered to the patch layer, and
a patch delivery layer adhered to the patch layer, wherein the patch delivery layer comprises a slit, wherein the slit extends between an opening in the patch delivery layer and an exterior edge of the patch delivery layer;

wherein placing the patch comprises positioning the opening in the patch layer over a vacuum port in the dressing layer and securing the patch layer to the dressing layer; and
removing the patch delivery layer from the patch layer, wherein the slit permits the patch delivery layer to be removed when a fluid conduit is coupled to the vacuum port.

2. The method according to claim 1 , further comprising placing at least one of a wound filler in the wound or a wound contact layer in contact with the wound.

3. The method according to claim 1 , further comprising causing exudate aspirated from the wound to be collected in a canister.

4. The method according to claim 1 , further comprising attaching a fluid conduit to the vacuum port.

5. The method according to claim 1 , wherein the patch layer is flexible.

6. The method according to claim 1 , wherein the patch layer is substantially round.

7. The method according to claim 1 , wherein the patch layer is substantially elongate.

8. The method according to claim 1 , further comprising removing the patch backing layer to expose an adhesive coating on an underside of the patch layer and securing the patch layer to the dressing layer using the adhesive coating.

9. The method according to claim 1 , wherein the fluid conduit is attached to the vacuum port and wherein the slit is positioned under the fluid conduit after the patch is placed.

10. A method of treating a wound with negative pressure wound therapy comprising:
placing a wound dressing over the wound, the wound dressing comprising a dressing layer configured to be placed over the wound; and
placing a patch, the patch comprising:
a patch layer configured to prevent leaks, the patch layer comprising an opening,
a patch backing layer adhered to the patch layer,
a patch delivery layer adhered to the patch layer, wherein the patch delivery layer comprises a slit, wherein the slit extends between an opening in the patch delivery layer and an exterior edge of the delivery layer,
a first identifier disposed on any of the patch layer, the patch backing layer, or the patch delivery layer, and
a second identifier disposed on any of the patch layer or the patch delivery layer,

wherein placing the patch comprises:
removing the patch backing layer from an underside of the patch layer;
securing the patch to the dressing layer and positioning the opening in the patch layer over a vacuum port in the dressing layer; and
removing the patch delivery layer from the patch layer, wherein the slit permits the patch delivery layer to be removed when a fluid conduit is coupled to the vacuum port.

11. The method according to claim 10 , further comprising placing at least one of a wound filler in the wound or placing a wound contact layer in contact with the wound.

12. The method according to claim 10 , further comprising collecting wound exudates removed from the wound with a canister.

13. The method according to claim 10 , further comprising attaching a fluid conduit to the vacuum port.

14. The method according to claim 10 , wherein the patch layer is flexible.

15. The method according to claim 10 , wherein the patch layer is substantially round.

16. The method according to claim 10 , wherein the patch layer is substantially elongate.

17. The method according to claim 10 , further comprising removing the patch backing layer to expose an adhesive coating on an underside of the patch layer and securing the patch to the dressing layer using the adhesive coating.

18. The method according to claim 10 , wherein the fluid conduit is attached to the vacuum port and wherein the slit is positioned under the fluid conduit after the patch is placed.

19. A patch configured to be secured to a wound dressing in connection with application of negative pressure wound therapy, the patch comprising:
a patch layer configured to prevent leaks wherein the patch layer comprises an opening configured to substantially surround a vacuum port in the dressing,
a patch backing layer adhered to the patch layer, the patch backing layer configured to be removed from an underside of the patch layer,
a patch delivery layer adhered to the patch layer, the patch delivery layer configured to be removed from a top surface of the patch layer, wherein the patch delivery layer comprises a slit, wherein the slit extends between an opening in the patch delivery layer and an exterior edge of the delivery layer,
a first identifier disposed on any of the patch layer, the patch backing layer, or the patch delivery layer, and
a second identifier disposed on any of the patch layer or the patch delivery layer.

20. The patch according to claim 19 , in combination with at least one of a wound filler adapted for placement in the wound or a wound contact layer adapted for placement in contact with the wound.

21. The patch according to claim 19 , in combination with a canister adapted to collect wound exudates.

22. The patch according to claim 19 , in combination with the wound dressing comprising a vacuum port.

23. The patch according to claim 22 , further comprising a fluid conduit configured to be attached to the vacuum port.

24. The patch according to claim 23 , wherein the slit permits the patch delivery layer to be removed when the fluid conduit is coupled to the vacuum port.

25. The patch according to claim 19 , wherein the patch layer is flexible.

26. The patch according to claim 19 , wherein the patch layer is substantially round.

27. The patch according to claim 19 , wherein the patch layer is substantially elongate.

28. The patch according to claim 19 , wherein the patch backing layer is configured to expose an adhesive coating on an underside of the patch layer when the patch backing layer is removed.

Assignees

• Smith & Nephew Inc
• Smith & Nephew Inc

Inventors

• Vitaris Ronald F
• Anderson Julia-Rose
• Mckeown Deirdre
• Ruggles Adam M

Classifications

• A61M1/982

  with means for detecting level of collected exudate · CPC title

• A61M1/916

  specially adapted for deep wounds · CPC title

• A61M1/915

  Constructional details of the pressure distribution manifold · CPC title

• A61M1/0088 Primary

  Human Necessities · mapped topic

• A61M27/00

  Drainage appliance for wounds or the like {, i.e. wound drains, implanted drains} ({negative pressure wound therapy devices A61M1/90;} implements for holding wound open A61B17/02 {; middle ear drainage A61F11/202}) · CPC title