US4646741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical fastener made from polymeric blends
Assignee: Ethicon Inc
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Filing: 1984-11-09
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Granted: 1987-03-03
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Expires: 2004-11-09
Abstract
Abstract A surgical fastener is made from a blend of a lactide/glycolide copolymer and poly(p-dioxanone).
Inventors
- 👤 Carl R. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:22
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/08; A61B17/064; A61B17/0643; A61L; A61L31/00; A61L31/04; A61L31/041
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
48 words
A surgical fastener comprising a blend of a copolymer containing from about 65 to about 90 mol percent lactide and from about 10 to about 35 mol percent glycolide, and poly(p-dioxanone), said blend containing from about 25 to about 50 weight percent poly(p-dioxanone), the remainder comprising said copolymer.
Claim 2
Dependent Claim
48 words
A surgical fastener comprising a blend of a copolymer containing from about 65 to about 90 mol percent lactide and from about 10 to about 35 mol percent glycolide, and poly(p-dioxanone), said blend containing from about 25 to about 50 weight percent poly(p-dioxanone), the remainder comprising said copolymer.
Claim 3
Dependent Claim
125 words
The surgical fastener of claim 1 in the form of a staple comprising: (a) a fastener member including a base member and at least one leg member terminating in a pointed free end, said leg member extending substantially perpendicularly from said base member; and (b) a receiving member including at least one aperture arranged and constructed to receive and retain the free end of said leg member, wherein said fastener member comprises a blend of a copolymer containing from about 65 to about 90 mole percent lactide and from about 10 to about 35 mole percent glycolide, and poly(p-dioxanone), said blend containing from about 25 to about 50 weight percent poly(p-dioxanone), the remainder comprising said copolymer, and wherein said receiving member is an absorbable polymer.
Claim 4
Dependent Claim
12 words
The surgical fastener of claim 2 wherein said absorbable polymer is poly(p-dioxanone).
Claim 5
Dependent Claim
37 words
The surgical fastener of claim 2 wherein said copolymer contains about 85 mole percent polymerized lactide, the remainder being polymerized glycolide, and wherein said blend contains about 70 weight percent of said copolymer, the remainder comprising poly(p-dioxanone).
Claim 6
Dependent Claim
37 words
The surgical fastener of claim 3 wherein said copolymer contains about 85 mole percent polymerized lactide, the remainder being polymerized glycolide, and wherein said blend contains about 70 weight percent of said copolymer, the remainder comprising poly(p-dioxanone).
Claim 7
Dependent Claim
13 words
The surgical fastener of claim 1 in the form of a ligating clip.
Claim 8
Dependent Claim
13 words
The surgical fastener of claim 1 in the form of an anastomotic coupler.
Claim 9
Dependent Claim
13 words
The surgical fastener of claim 1 in the form of a fascia closure.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |