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Absorbent wound dressings

  • US 5,981,822 A
  • Filed: 04/28/1998
  • Issued: 11/09/1999
  • Est. Priority Date: 05/02/1997
  • Status: Expired due to Term
First Claim
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1. A wound dressing comprising a wound contacting sheet laminated to one side of an absorbent layer of reversibly water-swellable absorbent material, characterized in that a liquid water-impermeable backing layer is laminated to the other side of the absorbent layer, and the wound contacting sheet is provided with one or more slits therein, whereby swelling of the absorbent layer due to absorption of wound exudate causes the wound contacting sheet to bulge, thereby opening up the slits to increase the liquid permeability of the wound contacting sheet.

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