US4780168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wound closure strips
Assignee: Derma Sciences Inc
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Filing: 1987-01-06
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Granted: 1988-10-25
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Expires: 2007-01-06
Abstract
Abstract An adhesive strip-like bandage for application to skin wounds for sealing the wound without surface stitches or staples. The wound closure strips may be fabricated from a bias cut, woven, or non-woven, polymer-based material or other film, exhibiting uni-directional stretch properties which permits the strips to stretch in a controlled manner during wound healing. The strip bandages are detachably mounted to a backing member and in one configuration comprise a comb-like structure.
Inventors
- 👤 Arthur A. Beisang
- 👤 Daniel G. Holman
- 👤 Robert A. Ersek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:22
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/08; A61B17/085; Y; Y10; Y10S; Y10S602/00; Y10S602/90; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1074
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A process for fabricating wound closure strips comprising: (a) feeding a continuous web of woven or non-woven polymer material of a type exhibiting an easy stretch axis and a hard stretch axis orthogonal to said easy stretch axis and having an adhesive backing on one surface of said web past a first die cutting station; (b) feeding a backing material in juxtaposed relation to said web of material past a second die cutting station; (c) aligning said first die cutting station at a bias angle relative to said easy stretch axis of said polymer material, said bias angle being selected to obtain a predetermined modulus, E t , in a selected stretch direction in the range of from 0.5 pounds per inch to 110 pounds per inch; (d) die cutting individual pad members from said web of material at said first die cutting station and depositing said die cut pad members on said backing material; and (e) die cutting said backing material at said second die cutting station so as to produce individual detachably mounted wound closure bandages on the cut backing material having said predetermined modulus.
Claim 2
Dependent Claim
187 words
A process for fabricating wound closure strips comprising: (a) feeding a continuous web of woven or non-woven polymer material of a type exhibiting an easy stretch axis and a hard stretch axis orthogonal to said easy stretch axis and having an adhesive backing on one surface of said web past a first die cutting station; (b) feeding a backing material in juxtaposed relation to said web of material past a second die cutting station; (c) aligning said first die cutting station at a bias angle relative to said easy stretch axis of said polymer material, said bias angle being selected to obtain a predetermined modulus, E t , in a selected stretch direction in the range of from 0.5 pounds per inch to 110 pounds per inch; (d) die cutting individual pad members from said web of material at said first die cutting station and depositing said die cut pad members on said backing material; and (e) die cutting said backing material at said second die cutting station so as to produce individual detachably mounted wound closure bandages on the cut backing material having said predetermined modulus.
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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) | 1991-10-25 | 1992-04-25 | 1992-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-25 | 1996-04-25 | 1996-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-25 | 2000-04-25 | 2000-10-25 | $7700.00 | Window Closed / Lapsed |