Wound dressing system

• US 20020150720A1
• Filed: 04/16/2002
• Published: 10/17/2002
• Est. Priority Date: 04/16/2001
• Status: Active Grant

• Current Assignee: United States Army (U.S. Department Of Defense)
• Original Assignee: United States Army (U.S. Department Of Defense)
• Inventors: Howard, Pamela A., Howard, Eben
• Granted Patent: US 6,695,824 B2
• Time in Patent Office: Days
• US Class Current: 428/131
• CPC Class Codes: A61F 13/0226 characterised by the support layer
• 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 1/915 Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/918 for multiple suction locations
• CPC Class Codes: A61M 1/92 with liquid supply means
• CPC Class Codes: A61M 35/00 Devices for applying media, e.g. remedies, on the human body devices for handling toiletry or cosmetic substances A45D; absorbent pads, e.g. swabs, A61F13/15
• CPC Class Codes: B32B 2250/24 All layers being polymeric
• CPC Class Codes: B32B 2255/205 Metallic coating
• CPC Class Codes: B32B 2305/026 Porous
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2323/04 Polyethylene
• CPC Class Codes: B32B 2323/10 Polypropylene
• CPC Class Codes: B32B 2327/06 PVC, i.e. polyvinylchloride
• CPC Class Codes: B32B 2333/04 Polymers of esters
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 2375/00 Polyureas; Polyurethanes
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/304 comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
• CPC Class Codes: B32B 27/308 comprising acrylic (co)polymers
• CPC Class Codes: B32B 27/32 : comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 27/36 : comprising polyesters
• CPC Class Codes: B32B 27/40 : comprising polyurethanes
• CPC Class Codes: B32B 3/10 : characterised by a discontinuous layer, i.e. formed of separate pieces of material
• CPC Class Codes: B32B 3/20 : of hollow pieces, e.g. tubes; of pieces with channels or cavities
• CPC Class Codes: B32B 7/12 : using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: Y10T 428/24273 : including aperture

Abstract

The invention preferably is a wound dressing system having a dressing and an irrigation system in communication with the dressing. The dressing preferably includes a first layer for contacting the wound/injury site of a patient and a second layer that has a backing layer. The backing layer preferably prevents seepage from the wound and/or moisture within the dressing from soiling the surrounding environment.

Claims

1. A wound dressing system comprising:

a dressing having

a first layer, said first layer including a material suitable for contacting a wound, and

a second layer connected to said first layer, said second layer including a backing layer, and

an irrigation system in communication with said first layer of said dressing, said irrigation system having at least one conduit.

2. The wound dressing system of claim 1, wherein said irrigation system is between said first layer and said second layer.

3. The wound dressing system of claim 2, wherein said irrigation system further including at least one connector in communication with said at least one conduit.

4. The wound dressing system of claim 3, wherein said irrigation system includes a matrix of interconnected conduits.

5. The wound dressing system of claim 3, wherein said irrigation system includes a series of individual conduits.

6. The wound dressing system of claim 3, wherein a portion of said conduit in said dressing further includes at least one hole.

7. The wound dressing system of claim 3, wherein a portion of said conduit in said dressing includes a plurality of drain holes.

8. The wound dressing system of claim 1, wherein said first layer includes a silver coating.

9. The wound dressing system of claim 1, wherein said irrigation system is within said first layer.

10. The wound dressing system of claim 1, wherein said dressing further includes a third layer having a reservoir, said third layer is between said first layer and said second layer.

11. A wound dressing system comprising:

a first layer including material suitable for contacting a wound,

a second layer including a backing material attached to said first layer,

an irrigation system in communication with said first layer, and

a means for providing pressure differential connected to said irrigation system.

12. The wound dressing system according to claim 11, wherein said pressure differential means includes a pump.

13. The wound dressing system according to claim 12, wherein said irrigation system includes a portion within said first layer.

14. The wound dressing system according to claim 11, wherein said pressure differential means includes a vacuum.

15. The wound dressing system according to claim 14, further comprising a second conduit system connected to said vacuum, and

wherein said irrigation system includes a first conduit.

16. The wound dressing system according to claim 11, wherein said first layer includes silver.

18. The wound dressing system comprising:

said wound dressing of claim 17, and

means for supplying moisture to said maintaining means of said wound dressing of claim 17.

19. The wound dressing according to claim 17, wherein said covering means includes silver.

17. A wound dressing comprising:

a means for covering a wound,

a means for preventing seepage from said dressing, and

a means for maintaining wetness within said covering means.

20. A system comprising:

a dressing having

a first layer, said first layer including a material suitable for contacting a wound, and

a second layer connected to said first layer, said second layer including a backing layer, and

an irrigation system in communication with said dressing, said irrigation system having

at least one connector,

at least one external conduit connected to said connector, said external conduit having a passageway in communication with said connecter, and

at least one internal conduit, said internal conduit having a passageway in communication with the passageway of said at least one external conduit and a plurality of holes spaced along the length of said internal conduit, the plurality of holes allowing communication between the passageway of said internal conduit with said first layer of said dressing, said internal conduit forming a pattern within said dressing.