Vacuum therapy and cleansing dressing for wounds

• US 6,752,794 B2
• Filed: 11/27/2001
• Issued: 06/22/2004
• Est. Priority Date: 11/29/2000
• Status: Expired due to Term

• Current Assignee: KCI Licensing Incorporated (3M Company)
• Original Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Inventors: Risk, James R. Jr., Lockwood, Jeffrey S., Petrosenko, Robert
• Primary Examiner(s): Lo, Weilun
• Assistant Examiner(s): Bogart, Michael G
• Application Number:
  US09/994,537
• Publication Number:
  US 20020082567A1
• Time in Patent Office: 938 Days
• Field of Search: 604/289, 604/304, 604/305, 604/307, 604/308, 604/313, 604/315-318, 604/327, 604/543, 602/43, 602/59
• US Class Current: 604/313
• CPC Class Codes: A61F 13/05 specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
• CPC Class Codes: A61M 1/77 Suction-irrigation systems aspiration tips supplying fluids A61M1/85; specific for negative pressure wound therapy A61M1/92; combined with tracheal tubes A61M16/0463
• CPC Class Codes: A61M 1/772 operating alternately
• CPC Class Codes: A61M 1/84 Drainage tubes; Aspiration tips for negative pressure wound therapy A61M1/90; for surgical cutting instruments A61B17/32
• CPC Class Codes: A61M 1/915 Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/92 with liquid supply means
• CPC Class Codes: A61M 27/00 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

Abstract

A thin, flexible member is provided for use in a vacuum bandage connected to a vacuum source. The member is provided for use with a wound having a wound surface. The member includes a wound contacting surface adapted to be in contact with and generally conform to the wound surface. The member further includes a plurality of discrete holes formed in the wound contacting surface, a port configured to communicate with the vacuum source, and communicating means from the holes to the port. The member is formed from a generally non-porous material.

Claims

1. A thin, flexible member for use in a vacuum bandage connected to a vacuum source and for use with a wound having a wound surface, the member comprising:

a wound contacting surface adapted to be in contact with and generally conform to the wound surface,

a plurality of discrete holes formed in the wound contacting surface,

a port configured to communicate with the vacuum source, and

communicating means from the holes to the port, the member being formed from a generally non-porous material.

2. The member of claim 1, wherein the communicating means comprises a distinct passageway between each hole and the port.

3. The member of claim 2, wherein the member includes a wound contacting layer having channels formed therein and a cover coupled to the wound contacting layer, and wherein the cover cooperates with the channels in the wound contacting layer to define the distinct passageways.

4. The member of claim 3, further including a boss positioned near the port of the cover to prevent an upper surface of the wound contacting layer from sealing off the port when the vacuum source is applied.

5. The member of claim 4, wherein the wound contacting layer includes multiple bosses spaced around the port of the cover and wherein each boss has a tapered cross-section.

6. The member of claim 3, wherein the cover and the wound contacting layer are each made from a transparent and non-porous material.

7. The member of claim 3, further including an outer perimeter configured adhesively to seal about the wound to a patient'"'"'s healthy skin surrounding the wound.

8. The member of claim 3, wherein the cover is formed to include the port, and the member further including a connecter coupled to the cover for communication with the port and configured for communication with the vacuum source, the connecter defines a right angled passageway to provide a tube attachment extending along a patient'"'"'s healthy skin surrounding the wound.

9. The member of claim 2, wherein the wound contacting surface is textured to provide a vacuum space between the wound contacting layer and the wound surface.

10. The member of claim 8, wherein the cover includes scale markings for a caregiver to trim the member to fit a particular wound.

11. The member of claim 2, further including a plurality of irrigation passageways configured for communication with an irrigation source and with the wound surface and distinct from the passageways configured for communication with the vacuum source, and an irrigation port in communication with the irrigation passageways and adapted for communication with the irrigation source.

12. The member of claim 1, wherein the member further includes a wound contacting layer and a cover coupled to the wound contacting layer.

13. The member of claim 12, wherein the wound contacting layer includes a plurality of channels in communication with the port and the holes and which cooperate with the cover to form passageways which define the communicating means.

14. The member of claim 13, wherein the port is centrally located and the channels extend radially outwardly from the port.

15. The member of claim 13, wherein the wound contacting layer and the cover are each made from a generally non-porous material.

16. The member of claim 12, further including a wire form coupled to one of the wound contacting layer and the cover.

17. The member of claim 16, wherein the wire form is molded into the cover.

18. The member of claim 16, wherein the wire form is molded into the wound contacting layer.

19. The member of claim 12, wherein the communicating means is defined by a plurality of channels formed in the cover which cooperate with the wound contacting layer to form a passageway between the port and each of the holes.

20. The member of claim 1, wherein the member is saddle-shaped and adapted for use with a wound on a patient'"'"'s heel.

21. The member of claim 20, further including an upper portion, a neck portion coupled to the upper portion, and a lower portion coupled to the neck portion.

22. The member of claim 21, wherein the port is located in the neck portion and the communicating means comprises a plurality of passageways extending radially from the port.

23. The member of claim 21, wherein the port is located in the upper portion and the communicating means comprises a central passageway extending from the port and plurality of lateral passageways extending from the central passageway.

24. The member of claim 20, further including two inwardly facing “

W-shaped”

sides.

25. The member of claim 1, wherein the member includes a cone-shaped portion, a tube-shaped portion coupled to the cone-shaped portion, and a dome-shaped portion coupled to the tube-shaped portion, and wherein the member is adapted for use with a tunneled wound.

26. The member of claim 25, wherein the port is positioned in the cone-shaped portion.

27. The member of claim 1, wherein a cross-section of the member is generally “

V-shaped” and

the member includes a right-wing, a left-wing, and a central portion coupled to the right-wing and the left-wing.

28. The member of claim 27, wherein the communicating means comprises a plurality of passageways defined by a central passageway along the central portion in communication with the port and lateral passageways in communication with the central passageway and the holes, the central passageway being disposed between the right-wing and the left-wing.

29. The member of claim 1, wherein the wound contacting surface is generally dome-shaped.

30. A non-porous wound dressing member for use in a vacuum bandage on a wound surface and coupled to a vacuum source, the member comprising

a wound contacting layer having a wound contacting surface adapted to be in contact with and generally conform to the wound surface, an opposite surface, a plurality of channels formed in the opposite surface, and at least one hole between the wound contacting surface and each channel, and

a cover coupled to portions of the opposite surface of the wound contacting layer between the channels and formed to define a port in communication with the channels, the port being configured to communicate with the vacuum source, the cover and the channels in the opposite surface of the layer cooperating to form a passageway from the port to each of the holes.

31. The member of claim 30,wherein the member is fabricated from a non-porous and non-absorptive material.

32. The member of claim 31, wherein the material is non-adhesive with respect to the wound surface.

33. The member of claim 31, wherein the material is generally non-compressible.

34. A thin, flexible member for use in a vacuum bandage connected to a vacuum source and for use with a wound bed having a wound surface, the member comprising:

a first set of passageways adapted for communication with the vacuum source and the wound surface, and

a second set of passageways distinct from the first set adapted for communication with an irrigation source and the wound surface,

the thin, flexible member being adapted to be in contact with and generally conform to the wound surface.

35. The member of claim 34, wherein the member includes a cover, an irrigation layer, and an intermediate layer positioned between the cover and the irrigation layer.

36. The member of claim 35, wherein cover includes a port configured for communication with the vacuum source, the intermediate layer includes vacuum channels in communication with the port and vacuum holes in communication with the channels, and the irrigation layer includes an irrigation port adapted for communication with the irrigation source, irrigation channels in communication with the irrigation port, irrigation holes in communication with the irrigation channels and adapted for communication with the wound surface, and vacuum holes in communication with the vacuum holes of the intermediate layer and adapted for communication with the wound surface.

37. A thin, flexible wound dressing member for use in a vacuum bandage connected to a vacuum source and for use with a wound having a wound surface, the member comprising:

a wound contacting surface adapted to be in contact with and generally conform to the wound surface,

a plurality of discrete holes formed in the wound contacting surface,

a port configured to communicate with the vacuum source, and

a passageway from the port to each hole, and

the member being configured to remain on top of granulations formed by the wound throughout vacuum therapy treatment of the wound without connecting to the granulations.