EP0284219A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Adhesive dressings, their preparation and use
Assignee: Smith and Nephew PLC
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Filing: 1988-03-01
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Granted: —
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Expires: 2008-03-01
Abstract
Abstract A dressing for retaining a cannula on the skin is described. The dressing comprises a backing film coated on one face with an adhesive layer and with first and second release sheets covering the adhesive layer. A hole and a dividing line are cut through the dressing and second release sheet so that the dividing line extends from the hole to one edge of the dressing and the edge of the second release sheet. In use when the second release sheet is removed the hole in the dressing fits around the indwelling cannula. In a preferred form a portion of the dressing comprises an adhesive coated handle which is stiffer than the remainder of the dressing and which carries the hole and dividing line.
Inventors
- 👤 William John Ward
- 👤 Joanne Shorthouse
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 08:50
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/02; A61F13/023; A61M; A61M25/00; A61M25/01; A61M25/02; A61F2013/00361; A61F2013/00365; A61F2013/00412; A61M2025/0266; A61M2025/0273; Y; Y10; Y10S; Y10S128/00; Y10S128/26
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
84 words
A dressing for retaining a cannula comprising a backing film coated on one face with an adhesive layer and first and second release sheets covering the adhesive layer characterised in that there is a hole and a dividing line through the dressing and second release sheet said dividing line extending from the hole to one edge of the dressing and second release sheet whereby when the second release sheet is removed the hole in the dressing is adapted to be placed around a cannula.
Claim 2
Dependent Claim
84 words
A dressing for retaining a cannula comprising a backing film coated on one face with an adhesive layer and first and second release sheets covering the adhesive layer characterised in that there is a hole and a dividing line through the dressing and second release sheet said dividing line extending from the hole to one edge of the dressing and second release sheet whereby when the second release sheet is removed the hole in the dressing is adapted to be placed around a cannula.
Claim 3
Dependent Claim
17 words
A dressing as claimed in claim 1 in which the dividing line is a line of perforations.
Claim 4
Dependent Claim
36 words
A dressing as claimed in either of claims 1 or 2 in which the hole is oval in which the long axis is from 20 to 30mm and the short axis is from 5 to 15mm.
Claim 5
Dependent Claim
61 words
A dressing as claimed in claim 1 in which part of said second release sheet is folded back to form a second tab and a part of said first release sheet which is not in contact with the adhesive layer forming a first tab which covers part of said second tab, and wherein the second tab extends beyond the first tab.
Claim 6
Dependent Claim
31 words
A dressing as claimed in claim 1 in which one portion of the dressing is an adhesive coated handle in which the hole and dividing line are located in the handle.
Claim 7
Dependent Claim
21 words
A dressing as claimed in claim 5 in which the handle is made from a different material to the backing film.
Claim 8
Dependent Claim
15 words
A dressing as claimed in claim 6 in which the handle is an integral net.
Claim 9
Dependent Claim
30 words
A dressing as claimed in any one of claims 1 to 7 in which the backing layer is a flexible polymeric film of polyurethane of thickness from 15 to 50µm.
Claim 10
Dependent Claim
37 words
A dressing as claimed in any one of claims 1 to 8 in which the adhesive layer is formed from an acrylate ester copolymer adhesive and which has a weight per unit area of 10 to 75gm⁻².
Claim 11
Dependent Claim
36 words
A dressing as claimed in any one of claims 1 to 9 in which the dressing has a moisture vapour transmission rate of at least 300gm⁻² 24h⁻² at 37°C and 100% to 10% relative humidity difference.
Claim 12
Dependent Claim
20 words
A dressing as claimed in any one of claims 1 to 10 in which the adhesive layer contains antibacterial agent.
Claim 13
Dependent Claim
21 words
A dressing as claimed in claim 11 in which the adhesive layer contains 5% by weight of the adhesive chlorhexidine diacetate.
Claim 14
Dependent Claim
26 words
A dressing as claimed in any one of claims 1 to 12 in which the dressing is sterile and is provided in a bacteria proof pack.
References Cited (Backward Citations)
No citation records indexed.
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