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Dressings

  • US 6,191,335 B1
  • Filed: 09/13/1999
  • Issued: 02/20/2001
  • Est. Priority Date: 01/21/1997
  • Status: Expired due to Fees
First Claim
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1. A wound dressing comprising a backing film, an apertured wound facing layer and an absorbent layer intermediate the backing film and wound facing layer, the backing film having a water transmission rate greater than the moisture vapour transmission rate thereof and the absorbent layer comprising a fibrous layer comprising a fibrous component which, on absorbing moisture, undergoes a phase change to form a gel and a component which does not undergo a phase change to form a gel in the presence of water, the water transmission rate of the backing film being at least 4000 gm

  • 2 24 hr

    1
    at 37°

    C. and the moisture vapour transmission rate of the backing film being at least 1000 to 3000 gm

    2
    24 hr

    1
    at 37°

    C. and a relative humidity difference of from 10 to 100%.

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