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Wound dressing materials

  • US 4,233,969 A
  • Filed: 11/10/1977
  • Issued: 11/18/1980
  • Est. Priority Date: 11/11/1976
  • Status: Expired due to Term
First Claim
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1. A wound dressing material, comprising a non-laminated sheet of a synthetic plastics material which is permeable to water vapour and to air and which is impermeable to liquid exudate, said material having on one side a smooth glazed surface for application to a wound, a closed cell cellular region behind the smooth surface, and a more dense region behind the closed cell cellular region, so that on contact with liquid exudate from a wound the dressing material will absorb a limited amount of exudate but prevent it from passing through the dressing material.

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