| US 5,636,643 C2 (7140th) | ||
| WOUND TREATMENT EMPLOYING REDUCED PRESSURE | ||
| 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 No. 90/010,187, Jun. 3, 2008. | ||
| Reexamination Certificate for Patent 5,636,643, issued Jun. 10, 1997, Appl. No. 28,677, Mar. 9, 1993. | ||
| Reexamination Certificate C1 5,636,643, issued Mar. 3, 2009. | ||
| Continuation-in-part of application No. 07/792,001, filed on Nov. 14, 1991, now Pat. No. 5,645,081. | ||
| Int. Cl. A61B 19/00 (2006.01) | ||
| U.S. Cl. 128—897 |
| AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT: |
| The patentability of claims 1-12, 16-18, 20, 21, 23-34, 36 and 38-40 is confirmed. |
| Claim 13 was previously cancelled. |
| Claims 14 and 15 are cancelled. |
| Claims 19, 22, 35 and 37 were not reexamined. |
| 1. An appliance for administering a reduced pressure treatment to a would comprising: (a) an impermeable cover adapted to cover and enclose the wound and adapted to maintain reduced pressure at the site of the wound;
(b) a seal adapted to seal said cover to tissue surrounding the wound;
(c) reduced pressure supply means for connection to a source of suction, said reduced pressure supply means cooperating with said cover to supply said reduced pressure beneath said cover; and
(d) a screen adapted to prevent overgrowth of wound tissue, said screen being located between said wound and said cover.
|