GB2166354A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Wound dressings
Assignee: Imperial Chemical Industries Ltd
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Filing: 1985-09-27
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Granted: —
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Expires: 2005-09-27
Abstract
Abstract Wound dressings comprise a poly 3-hydroxybutyrate polymer dissolved or swollen with a volatile solvent such as chloroform. The 3-hydroxybutyrate may be co-polymerised with for example 10-30 mol % of 3-hydroxyvalerate units and may be in sterilised form e.g. by gamma -radiation. On application to the wound the polymer adapts to the contours of the area to be treated and solvent evaporates to provide a film covering which is permeable to water vapour but impermeable to oxygen.
Inventors
- 👤 Andrew Webb
- 👤 Dr John Robert Adsetts
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-23 01:54
CPC Classifications
A; A61; A61L; A61L26/00; A61L26/0009; A61L26/0019
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
14 words
A wound dressing comprising a poly 3-hydroxybutyrate dissolved or swollen with a volatile solvent.
Claim 2
Dependent Claim
14 words
A wound dressing comprising a poly 3-hydroxybutyrate dissolved or swollen with a volatile solvent.
Claim 3
Dependent Claim
19 words
A wound dressing according to claim 1 wherein the poly 3-hydroxybutyrate comprises at least 50 mol% of 3-hydroxybutyrate units.
Claim 4
Dependent Claim
20 words
A wound dressing according to either claim or claim 2 wherein the poly 3-hydroxybutyrate comprises 10-30 mol% of 3-hydroxyvalerate units.
Claim 5
Dependent Claim
15 words
A wound dressing according to claim 3 which comprises about 20 mol% of 3-hydroxyvalerate units.
Claim 6
Dependent Claim
15 words
A wound dressing according to any one of claims 1 to 4 in sterilised form.
Claim 7
Dependent Claim
17 words
A wound dressing according to any one of claims 1 to 5 wherein the solvent comprises chloroform.
Claim 8
Dependent Claim
7 words
A wound dressing comprising a poly 3-hydroxybutyrate.
Claim 9
Dependent Claim
7 words
A wound dressing comprising a poly 3-hydroxybutyrate.
Claim 10
Dependent Claim
26 words
A poly 3-hydroxybutyrate dissolved or swollen with a volatile solvent for use as a wound dressing as described in any one of claims 1 to 6.
References Cited (Backward Citations)
No citation records indexed.
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