Combination SIS and vacuum bandage and method

• US 7,910,791 B2
• Filed: 05/15/2001
• Issued: 03/22/2011
• Est. Priority Date: 05/22/2000
• Status: Expired due to Fees

• Current Assignee: KCI Medical Resources Unlimited Company (3M Company)
• Original Assignee: Hill-Rom Services Incorporated (Baxter International Inc.)
• Inventors: Coffey, Arthur C.
• Primary Examiner(s): Bianco; Patricia M
• Assistant Examiner(s): JACKSON, BRANDON LEE
• Application Number:
  US10/276,778
• Publication Number:
  US 20030208149A1
• Time in Patent Office: 3,598 Days
• Field of Search: 602 41- 59, 604/305, 604/304, 604/307, 604/313, 424443-449
• US Class Current: 602/48
• CPC Class Codes: A61F 13/01012 being made of natural material, e.g. cellulose-, protein-, collagen-based
• CPC Class Codes: A61F 13/02 Adhesive bandages or dressings
• CPC Class Codes: A61F 13/022 having more than one layer with different fluid retention characteristics
• CPC Class Codes: A61F 13/0226 characterised by the support layer
• CPC Class Codes: A61F 13/0253 characterized by the adhesive material
• 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: A61F 17/00 First-aid kits
• CPC Class Codes: A61F 2013/00174 possibility of applying pressure
• CPC Class Codes: A61F 2013/00357 implanted wound fillings or covers membranes for covering bone defects A61F2/2846
• CPC Class Codes: A61F 2013/00536 for draining or irrigating wounds
• CPC Class Codes: A61F 2013/0054 for deep wounds
• CPC Class Codes: A61F 2013/00859 with macroscopic openings
• CPC Class Codes: A61F 2013/00927 with biological activity, e.g. enzymes for debriding wounds or others, collagen or growth factors
• CPC Class Codes: A61L 15/225 Mixtures of macromolecular compounds
• CPC Class Codes: A61L 15/32 Proteins, polypeptides; Degradation products or derivatives thereof, e.g. albumin, collagen, fibrin, gelatin A61L15/225 takes precedence
• CPC Class Codes: A61L 15/325 Collagen
• CPC Class Codes: A61L 15/40 containing ingredients of undetermined constitution or reaction products thereof , e.g. plant or animal extracts
• CPC Class Codes: A61L 15/425 Porous materials, e.g. foams or sponges
• CPC Class Codes: A61L 15/44 Medicaments
• CPC Class Codes: A61L 15/58 Adhesives
• CPC Class Codes: A61L 2300/412 : Tissue-regenerating or healing or proliferative agents
• CPC Class Codes: A61L 2430/34 : for soft tissue reconstruction
• CPC Class Codes: A61L 27/24 : Collagen
• CPC Class Codes: A61M 1/915 : Constructional details of the pressure distribution manifold
• CPC Class Codes: A61M 1/916 : specially adapted for deep wounds
• 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 wound care bandage for treating a wound is provided. The bandage includes an SIS layer to be placed on the wound surface and a cover to placed over the wound. Illustratively, the bandage further includes a structure to provide a vacuum space. A method for promoting wound healing is further provided. The method includes applying the above-mentioned wound care bandage to the wound and creating a vacuum in the vacuum space to draw blood controllably from the wound into the SIS layer.

Claims

1. A method for promoting wound healing, the method comprising:

applying a first small intestine submucosa (SIS) layer to a wound surface,

creating a vacuum space in communication with the wound and the first SIS layer by placing a cover over the SIS layer,

generating a vacuum within the vacuum space in a magnitude and duration sufficient to draw blood from the wound into the first SIS layer, wherein no sutures and no stapes are used to hold the SIS layer in place during communication of negative pressure to the vacuum space by the vacuum source,

wherein creating the vacuum space includes positioning a structure between the first SIS layer and the cover to provide the vacuum space, and

wherein the structure comprises a ring having an aperture defined by an inner wall of the ring and wherein the vacuum space is defined by the first SIS layer, the cover, and the inner wall of the ring.

2. The method of claim 1, wherein the vacuum is generated in periods of application and non-application.

3. The method of claim 1, wherein the SIS layer includes one or more sheets of SIS.

4. The method of claim 1, wherein the SIS layer is fenestrated.

5. The method of claim 1, wherein the vacuum is generated for a sufficient period of time to begin integration of the first SIS layer into the wound surface, and further comprising the step of placing a second SIS layer over the first SIS layer.

6. The method of claim 1, wherein the ring comprises foam.

7. The method of claim 1, wherein the wherein the ring has a thickness of approximately 1-2 centimeters.

8. The method of claim 1, wherein the vacuum is generated with a vacuum source coupled to the cover by a vacuum tube.

9. The method of claim 1, wherein the vacuum is generated at a constant rate to controllably draw blood from the wound into the SIS layer.

10. The method of claim 1, wherein generating the vacuum includes generating a vacuum of about 0.1 to about 0.15 atmospheres.