US4787380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delivery system and package for a self adhering polymer medical dressing
Assignee: Becton Dickinson and Co
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Filing: 1987-08-28
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Granted: 1988-11-29
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Expires: 2007-08-28
Abstract
Abstract The delivery system and package for a self adhering polymer medical dressing includes a film carrier and a siliconized release paper and a film backing sheet sandwiched therebetween. The film backing sheet has two parts; a dressing and a bounding area heat sealed to the film carrier. The dressing area being defined by a cut line just inside the heat sealed area. The sandwich forms a contamination barrier package. The adhesive coating and siliconized release paper form a barrier on that side of the dressing and the film carrier and the heat seal form a barrier package. The adhesive is on the other side of the dressing. A part of the cut line is perforated to resist separation of the dressing during removal of the siliconized release paper. The manufacturing method includes the steps of; transferring the release paper and adhesive to the film backing sheet, cutting the film backing sheet to define the dressing, heat sealing the film carrier about the edges of the cut line of the dressing and severing individual dressings.
Inventors
- 👤 David F. Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:11
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/02; A61F13/023; A61B; A61B46/00; A61B46/40; A61F15/00; A61F15/001; A61F2013/00361; A61F2013/00365; A61F2013/00412; A61F2013/00795; A61F2013/008; A61F2013/00829; A61F2013/00855; A61F2013/00868
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
287 words
A delivery system and package for a self adhering polymer medical dressing for application over parts of biological subjects comprising: a film backing sheet having a subject facing surface and an opposite outward surface defined by an edge and including a dressing demarcated by being substantially cut out of said film backing sheet and said dressing designed for application to a selected part of the biological subject; a film carrier shaped substantially the same as said film backing sheet and attached directly to at least one part of said film backing sheet along said opposite outward surface near the edge, said film carrier being a protective support for said film backing sheet aiding handling of said film backing sheet during application of said dressing to the selected part of the biological subject, said film carrier secured to said film backing sheet and removable therefrom after said dressing is applied to the biological subject; an adhesive coating covering said subject facing surface of said film backing sheet for adhering to said subject facing surface so that said film backing sheet is sandwiched between said film sheet carrier and said adhesive coating whereby said adhesive coating on said dressing holds said dressing to the selected part of the biological subject as said dressing and film backing sheet are separated, said dressing being adhesively held to the selected part of the biological subject by said adhesive coating with greater adhesive strength than the connection of said demarcation between said dressing and the attachment near the edge of said film backing sheet; and a release sheet for cooperating with said film carrier as a package member and being removably adhered to said adhesive coating prior to application to the biological subject.
Claim 2
Dependent Claim
287 words
A delivery system and package for a self adhering polymer medical dressing for application over parts of biological subjects comprising: a film backing sheet having a subject facing surface and an opposite outward surface defined by an edge and including a dressing demarcated by being substantially cut out of said film backing sheet and said dressing designed for application to a selected part of the biological subject; a film carrier shaped substantially the same as said film backing sheet and attached directly to at least one part of said film backing sheet along said opposite outward surface near the edge, said film carrier being a protective support for said film backing sheet aiding handling of said film backing sheet during application of said dressing to the selected part of the biological subject, said film carrier secured to said film backing sheet and removable therefrom after said dressing is applied to the biological subject; an adhesive coating covering said subject facing surface of said film backing sheet for adhering to said subject facing surface so that said film backing sheet is sandwiched between said film sheet carrier and said adhesive coating whereby said adhesive coating on said dressing holds said dressing to the selected part of the biological subject as said dressing and film backing sheet are separated, said dressing being adhesively held to the selected part of the biological subject by said adhesive coating with greater adhesive strength than the connection of said demarcation between said dressing and the attachment near the edge of said film backing sheet; and a release sheet for cooperating with said film carrier as a package member and being removably adhered to said adhesive coating prior to application to the biological subject.
Claim 3
Dependent Claim
38 words
The delivery system and package of claim 1 wherein said area of attachment forms a continuous frame about said cut line for use in removal of said film carrier and said attached edge of said film backing sheet.
Claim 4
Dependent Claim
33 words
The delivery system and package of claim 1 wherein said film backing sheet is substantially transparent in order to facilitate the placement of said dressing on the selected part of the biological subject.
Claim 5
Dependent Claim
46 words
The delivery system and package of claim 1 wherein said release sheet has a siliconized surface on its side which meets with the adhesive coating and has indicia printed on the other side for disclosing the use and nature of the self adhering polymer medical dressing.
Claim 6
Dependent Claim
49 words
The delivery system and package of claim 1 wherein said demarcation between said dressing and said edge of said film backing sheet is defined by a cut line through said film backing sheet near said attached edge in order to facilitate the placement during application to the biological subject.
Claim 7
Dependent Claim
28 words
The delivery system and package of claim 5 wherein said demarcation is immediately adjacent to said area of attachment of said film carrier to said film backing sheet.
Claim 8
Dependent Claim
29 words
The delivery system and package of claim 2 wherein said attached edge have a heat sealed interface between said film carrier and film backing sheet which fuses adjoining surfaces.
Claim 9
Dependent Claim
46 words
The delivery system and package of claim 7 wherein said cut line includes a portion having greater resistance to separation for use in assisting in the process of removal of said release sheet from said adhesive coating without removal of said dressing from said film carrier.
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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) | 1991-11-29 | 1992-05-30 | 1992-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-29 | 1996-05-30 | 1996-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-29 | 2000-05-30 | 2000-11-29 | $7700.00 | Window Closed / Lapsed |