Combination SIS and vacuum bandage and method
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 be placed over the wound. 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.
1. A wound care bandage for use with a vacuum source, the wound care bandage comprising:
a cover having an aperture and configured for placement over a wound to provide a vacuum space around the wound;
a collagen-containing layer configured for placement on the wound within the vacuum space;
a porous pad configured for placement between the collagen-containing layer and the cover within the vacuum space, the porous pad being removable from the wound and having a plurality of fluid passageways; and
an adhesive adapted to couple the cover to skin around the wound to hold the porous pad and the collagen-containing layer in place within the vacuum space.
2. The bandage of claim 1 , wherein the collagen-containing layer comprises a submucosa layer.
3. The bandage of claim 1 , wherein the collagen-containing layer is selected from the group consisting of submucosa, lamina propria, and stratum compactum.
4. The bandage of claim 1 , wherein the collagen-containing layer is a sheet of a collagen matrix material having a three-dimensional structure.
5. The bandage of claim 1 , wherein the collagen-containing layer is configured, upon placement into a wound, to support tissue remodeling.
6. The bandage of claim 1 , wherein the bandage further includes a biological glue configured for placement between the wound and the collagen-containing layer to hold the collagen-containing layer stationary relative to the wound.
7. The bandage of claim 6 , wherein the glue is a fibrin sealant.
8. The bandage of claim 1 , wherein the porous pad includes an aperture defined by an inner wall.
9. The bandage of claim 8 , wherein the inner wall of the aperture is a ring.
10. The bandage of claim 1 , wherein the porous pad has a thickness of approximately one to two centimeters.
11. A method for promoting wound healing using a vacuum source, the method comprising:
applying a collagen-containing layer to a wound surface;
positioning a porous pad over the collagen matrix, the porous pad having a plurality of fluid passageways;
placing a cover over the wound to create a vacuum space including the collagen-containing layer and the porous pad, the cover having an aperture adapted to be coupled to the vacuum source; and
coupling the cover to skin around the wound to hold the porous pad and the collagen-containing layer in place within the vacuum space.
12. The method of claim 11 , wherein the collagen-containing layer is selected from the group consisting of submucosa, lamina propria, and stratum compactum.
13. The method of claim 11 , wherein the collagen-containing layer is a sheet of a collagen matrix material having a three-dimensional structure.
14. The method of claim 11 , wherein the bandage further includes a biological glue configured for placement between the wound and the collagen-containing layer to hold the collagen-containing layer stationary relative to the wound.
15. The method of claim 14 , wherein the glue is a fibrin sealant.
16. The method of claim 11 , wherein the porous pad includes an aperture defined by an inner wall, wherein the inner wall of the aperture is a ring.