US 5,645,081 C1 (7129th)
METHOD OF TREATING TISSUE DAMAGE AND APPARATUS FOR SAME
Louis C. Argenta, Winston-Salem, N.C., and Michael J. Morykwas, Pfafftown, N.C., assignors to Wake Forest University Health Sciences, Winston-Salem, N.C.
Reexamination Request Nos. 90/008,692, Jun. 11, 2007 and 90/010,186, Jun. 3, 2008.
Reexamination Certificate for Patent 5,645,081, issued Jul. 8, 1997, Appl. No. 792,001, Nov. 14, 1991.
Int. Cl. A61B 19/00 (2006.01)
U.S. Cl. 128—897
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
The patentability of claims 1-82 is confirmed.
1. An apparatus for facilitating the healing of wounds, comprising:
vacuum means for creating a negative pressure between about 0.1 and 0.99 atmospheres on the area of skin including and surrounding the wound;
sealing means operatively associated with said vacuum means for maintaining said negative pressure on said wound by contacting the skin surrounding said wound; and
screen means for positioning at the wound within the sealing means for preventing the overgrowth of tissue in the wound.