Patent EP0106440A1 successfully refreshed from Google Patents.
EP0106440A1
Expired / Lapsed
EP
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Wound dressing and its manufacture
Assignee: Smith and Nephew PLC
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Filing: 1983-08-05
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Granted: —
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Expires: 2003-08-05
Abstract
Abstract A wound dressing which compares an absorbent layer comprising an open cell foam of a hydrophilic polymer and a wound facing layer comprising either a conformable net of elastomer coated with adhesive on its wound facing surface or an adhesive layer, pattern spread in a conformable net-like configuration, the dressing optionally also having a conformable moisture vapour transmitting outer layer; and a process for making said dressing.
Inventors
- 👤 Stephen Michael Lang
- 👤 David Fitzgerald Webster
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 11:42
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/02; A61F13/023; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/425; A61L15/58; A61F13/15; A61F13/53; A61F13/534; A61F13/539; A61F2013/530802; A61F2013/53445; A61F2013/5395
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
45 words
A wound dressing which comprises an absorbent layer and a wound facing layer wherein the absorbent layer comprises an open cell foam of a hydrophilic polymer and the wound facing layer comprises a conformable net of elastomer coated with adhesive on its wound facing surface.
Claim 2
Dependent Claim
45 words
A wound dressing which comprises an absorbent layer and a wound facing layer wherein the absorbent layer comprises an open cell foam of a hydrophilic polymer and the wound facing layer comprises a conformable net of elastomer coated with adhesive on its wound facing surface.
Claim 3
Dependent Claim
61 words
A wound dressing according to claim 1, which comprises an outer layer, an intermediate absorbent layer and a wound facing layer wherein the outer layer comprises a conformable moisture vapour transmitting layer, the intermediate absorbent layer comprises an open cell foam of hydrophilic polymer and the wound facing layer comprises a net_of elastomer coated with adhesive on its wound facing surface.
Claim 4
Dependent Claim
16 words
A wound dressing according to claim 2, wherein the outer layer is a continuous conformable film.
Claim 5
Dependent Claim
40 words
A wound dressing according'to claim 1, wherein the adhesive coating of the wound facing layer is an acrylate ester copolymer pressure sensitive adhesive or a polyvinyl ethyl ether pressure sensitive adhesive, and has a thickness of 25 to 50 microns.
Claim 6
Dependent Claim
45 words
A process of making a wound dressing according to claim 1, which comprises bringing together an absorbent layer comprising an open cell foam of a hydrophilic polymer and wound facing layer comprising a conformable net of elastomer coated with adhesive on its wound facing surface.
Claim 7
Dependent Claim
46 words
A wound dressing which comprises an absorbent layer and a wound facing layer wherein the absorbent layer comprises an open cell foam of a hydrophilic polymer and the wound facing layer comprises an adhesive layer, pattern spread in a conformable net-like configuration onto the absorbent layer.
Claim 8
Dependent Claim
46 words
A wound dressing which comprises an absorbent layer and a wound facing layer wherein the absorbent layer comprises an open cell foam of a hydrophilic polymer and the wound facing layer comprises an adhesive layer, pattern spread in a conformable net-like configuration onto the absorbent layer.
Claim 9
Dependent Claim
60 words
A wound dressing which comprises an outer layer, an intermediate absorbent layer and a wound facing layer wherein the outer layer comprises a conformable moisture vapour transmitting layer, the intermediate absorbent layer comprises an open cell foam of hydrophilic polymer and the wound facing layer comprises an adhesive layer, pattern spread in a conformable net-like configuration onto the absorbent layer.
Claim 10
Dependent Claim
60 words
A wound dressing which comprises an outer layer, an intermediate absorbent layer and a wound facing layer wherein the outer layer comprises a conformable moisture vapour transmitting layer, the intermediate absorbent layer comprises an open cell foam of hydrophilic polymer and the wound facing layer comprises an adhesive layer, pattern spread in a conformable net-like configuration onto the absorbent layer.
Claim 11
Dependent Claim
16 words
A wound dressing according to claim 6, wherein the outer layer is a continuous conformable film.
Claim 12
Dependent Claim
26 words
A wound dressing according to claim 7, wherein the adhesive is an acrylate ester copolymer pressure sensitive adhesive or a polyvinyl ethyl ether pressure sensitive adhesive.
Claim 13
Dependent Claim
36 words
A process of making a wound dressing according to claim 6, which comprises pattern spreading an adhesive layer in a conformable net-like configuration onto an absorbent layer comprising an open cell foam of a hydrophilic polymer.
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