Wound treatment employing reduced pressure

  • US 5,636,643 A
  • Filed: 03/09/1993
  • Issued: 06/10/1997
  • Est. Priority Date: 11/14/1991
  • Status: Expired due to Term
First Claim
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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.

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