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EP0100148A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Medical-surgical dressing and a process for the production thereof

Assignee: Dow Silicones UK Ltd
•
Filing: 1983-06-27
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Granted: —
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Expires: 2003-06-27
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Abstract

Abstract A medical-surgical dressing comprising a reinforced sheet of silicone elastomer foam having a thickness not exceeding 10 millimetres, one of the surfaces of the sheet having a surface layer of open cell foam and the other surface having a substantially non-cellular surface skin. The dressing may be manufactured by a process comprising depositing a liquid foamable silicone composition (4) on an absorbent surface (2), incorporating a reinforcing material (6), allowing the composition to foam and set to an elastomer and thereafter separating the foam sheet from the substrate. The dressings are useful e.g. for the treatment of wounds, burns and as liners for plaster casts.

Inventors

  • 👤 Clifford Naylor
  • 👤 David Pocknell

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-27 08:26
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/425; A61L15/22; A61L15/26; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10S602/00; Y10S602/90

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 43 words
A medical-surgical dressing comprising a reinforced sheet of silicone elastomeric foam having a thickness not greater than 10 millimetres, one surface of the said sheet having a surface layer of open cell foam and the other surface having a substantially non-cellular surface skin.
Claim 2
Dependent Claim 43 words
A medical-surgical dressing comprising a reinforced sheet of silicone elastomeric foam having a thickness not greater than 10 millimetres, one surface of the said sheet having a surface layer of open cell foam and the other surface having a substantially non-cellular surface skin.
Claim 3
Dependent Claim 16 words
A medical-surgical dressing as claimed in Claim 1 wherein the reinforcement comprises a textile net fabric.
Claim 4
Dependent Claim 82 words
A process for the manufacture of a medical-surgical dressing which comprises applying a layer of a liquid foamable or foaming silicone elastomer composition to a substrate having a surface which is an absorbent for the liquid compositon, adding a reinforcing material to the foamable or foaming composition such that it becomes embedded therein, allowing the mixture to foam or continue foaming and to set to an at least partially cured silicone elastomer foam and thereafter separating the foam layer from the substrate.
Claim 5
Dependent Claim 82 words
A process for the manufacture of a medical-surgical dressing which comprises applying a layer of a liquid foamable or foaming silicone elastomer composition to a substrate having a surface which is an absorbent for the liquid compositon, adding a reinforcing material to the foamable or foaming composition such that it becomes embedded therein, allowing the mixture to foam or continue foaming and to set to an at least partially cured silicone elastomer foam and thereafter separating the foam layer from the substrate.
Claim 6
Dependent Claim 15 words
A process as claimed in Claim 3 wherein the absorbent substrate is a non-glazed paper.
Claim 7
Dependent Claim 20 words
A process as claimed in Claim 3 or Claim 4 wherein separation is effected by means of a cutting edge.
Claim 8
Dependent Claim 22 words
A process as claimed in any of Claims 3 to 5 wherein the separated foam sheet is subjected to a sterilisation treatment.

References Cited (Backward Citations)

GB1124121A Cited
FR2370479A1 Cited
DE3032092A1 Cited

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