Patent US4986852A successfully refreshed from Google Patents.
US4781293A
Expired / Lapsed
US
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One step dressing delivery system
Assignee: Smith and Nephew Inc
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Filing: 1987-12-23
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Granted: 1988-11-01
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Expires: 2007-12-23
Abstract
Abstract A dressing delivery system comprising an adhesive-coated dressing, a release liner and a package are arranged such that the package acts as the means for applying the dressing to a skin area, with the opening of the package and the application of the dressing being accomplished in a single step. A simple method of preparing the dressing delivery system is also described.
Inventors
- 👤 Owen L. Johns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:14
CPC Classifications
A; A61; A61F; A61F15/00; A61F15/001; A61F13/00; A61F13/02; A61F13/0203; A61F13/023; A61F2013/00361; A61F2013/00795; A61F2013/008; A61F2013/00808; A61F2013/00897
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
159 words
A dressing delivery system, which comprises: (a) a thin, flexible dressing comprising a backing layer at least partially coated on one side with adhesive and having a pair of ends and a transverse fold such that at least a portion of the uncoated side of the backing layer is adjacent itself; (b) a protective package enclosing the dressing comprising a pair of layers releasably sealed to each other outside the periphery of the dressing; (c) a release layer between the adhesive coating of the folded backing layer and the package fixedly attached to the package and split along a line adjacent the fold, the release layer having a substantially greater stiffness and resistance to wrinkling than the dressing; (d) opening means on the package adjacent the fold; and (e) dressing release-retarding means at each end of the dressing, whereby opening of the package and placement of the dressing on a body portion can be accomplished in a single operation.
Claim 2
Dependent Claim
159 words
A dressing delivery system, which comprises: (a) a thin, flexible dressing comprising a backing layer at least partially coated on one side with adhesive and having a pair of ends and a transverse fold such that at least a portion of the uncoated side of the backing layer is adjacent itself; (b) a protective package enclosing the dressing comprising a pair of layers releasably sealed to each other outside the periphery of the dressing; (c) a release layer between the adhesive coating of the folded backing layer and the package fixedly attached to the package and split along a line adjacent the fold, the release layer having a substantially greater stiffness and resistance to wrinkling than the dressing; (d) opening means on the package adjacent the fold; and (e) dressing release-retarding means at each end of the dressing, whereby opening of the package and placement of the dressing on a body portion can be accomplished in a single operation.
Claim 3
Dependent Claim
16 words
The system of claim 1 wherein the fold divides the backing layer into two equal portions.
Claim 4
Dependent Claim
8 words
The system of claim 1 in rectangular form.
Claim 5
Dependent Claim
10 words
The system of claim 1 wherein the dressing is breathable
Claim 6
Dependent Claim
19 words
The system of claim 4 wherein the backing layer is transparent polyurethane film and the adhesive comprises acrylic copolymer.
Claim 7
Dependent Claim
11 words
The system of claim 1 wherein the adhesive is water absorbent.
Claim 8
Dependent Claim
13 words
The system of claim 1 wherein the dressing comprises a central gauze pad.
Claim 9
Dependent Claim
24 words
The system of claim 1 wherein the package is paper and the releasable seal of the package is formed with rubber base contact adhesive.
Claim 10
Dependent Claim
25 words
The system of claim 1 wherein the release layer is a silicone release coated paper fixedly attached to the package with rubber base contact adhesive.
Claim 11
Dependent Claim
15 words
The system of claim 1 wherein the opening means comprises tabs integral with the package.
Claim 12
Dependent Claim
21 words
The system of claim 1 wherein the release-retarding means is a strip of the dressing in contact with the package layer.
Claim 13
Dependent Claim
170 words
A dressing delivery system comprising: (a) a breathable dressing comprising a rectangular backing layer of transparent polyurethane film coated on one side with acrylic copolymer adhesive and having a pair of ends and a transverse fold dividing the dressing into two equal portions such that the uncoated side of the backing layer is adjacent itself with the ends aligned; (b) a protective package enclosing the dressing comprising a pair of layers of sterilizable paper releasably sealed to each other with rubber base contact adhesive outside the periphery of the dressing; (c) a release layer of stiff silcone release coated paper between the adhesive coating of the dressing and the package fixedly attached to the package with rubber base contact adhesive and split along a line adjacent the fold; (d) a pair of opening tabs adjacent the fold intergral with the package; and (e) release-retarding means at each end of the dressing in the form of a strip of the dressing parallel with the fold in contact with the package layer.
Claim 14
Dependent Claim
170 words
A dressing delivery system comprising: (a) a breathable dressing comprising a rectangular backing layer of transparent polyurethane film coated on one side with acrylic copolymer adhesive and having a pair of ends and a transverse fold dividing the dressing into two equal portions such that the uncoated side of the backing layer is adjacent itself with the ends aligned; (b) a protective package enclosing the dressing comprising a pair of layers of sterilizable paper releasably sealed to each other with rubber base contact adhesive outside the periphery of the dressing; (c) a release layer of stiff silcone release coated paper between the adhesive coating of the dressing and the package fixedly attached to the package with rubber base contact adhesive and split along a line adjacent the fold; (d) a pair of opening tabs adjacent the fold intergral with the package; and (e) release-retarding means at each end of the dressing in the form of a strip of the dressing parallel with the fold in contact with the package layer.
Claim 15
Independent Claim
171 words
A method of preparing a dressing delivery system, which comprises: (a) providing a dressing comprising a thin, flexible backing layer at least partially coated on one side with adhesive and having a pair of ends with a protective release layer on the adhesive-coated side of the backing layer, the release layer having a substantially greater stiffness and resistance to wrinkling than the dressing; (b) folding the protected dressing such that at least a portion of the uncoated side of the backing layer is adjacent itself; (c) cutting the release layer along a line adjacent the fold in the protected dressing to divide the release layer into two portions; (d) fixedly attaching each portion of the free side of the release layer to a package layer larger than the folded dressing; (e) providing each end of the protected dressing with release-retarding means; (f) releasably sealing the package layers together outside the periphery of the folded dressing; and (g) providing the sealed package layers with opening means at a side adjacent the fold.
Claim 16
Independent Claim
171 words
A method of preparing a dressing delivery system, which comprises: (a) providing a dressing comprising a thin, flexible backing layer at least partially coated on one side with adhesive and having a pair of ends with a protective release layer on the adhesive-coated side of the backing layer, the release layer having a substantially greater stiffness and resistance to wrinkling than the dressing; (b) folding the protected dressing such that at least a portion of the uncoated side of the backing layer is adjacent itself; (c) cutting the release layer along a line adjacent the fold in the protected dressing to divide the release layer into two portions; (d) fixedly attaching each portion of the free side of the release layer to a package layer larger than the folded dressing; (e) providing each end of the protected dressing with release-retarding means; (f) releasably sealing the package layers together outside the periphery of the folded dressing; and (g) providing the sealed package layers with opening means at a side adjacent the fold.
Claim 17
Dependent Claim
15 words
The method of claim 13 wherein the protected dressing is folded into two equal portions.
Claim 18
Dependent Claim
17 words
The method of claim 13 wherein the release layer is cut before the protected dressing is folded.
Claim 19
Dependent Claim
21 words
The method of claim 13 wherein the release layer is fixedly attached to the package layer with rubber base contact adhesive.
Claim 20
Dependent Claim
30 words
The method of claim 16 wherein the rubber base contact adhesive is applied both to the free side of the release layer and to the package layer before the attachment.
Claim 21
Dependent Claim
26 words
The method of claim 13 wherein a strip of the release layer is removed at each end of the protected dressing to provide the release-retarding means.
Claim 22
Dependent Claim
16 words
The method of claim 13 wherein the package layers are sealed with rubber base contact adhesive.
Claim 23
Dependent Claim
23 words
The method of claim 13 wherein a portion of the package layers adjacent the fold is left unsealed to provide the opening means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |