US4741337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical fastener made from glycolide-rich polymer blends
Assignee: Ethicon Inc
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Filing: 1985-07-17
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Granted: 1988-05-03
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Expires: 2005-07-17
Abstract
Abstract A surgical fastener is made from a glycolide-rich blend of polymers.
Inventors
- 👤 Carl R. Smith
- 👤 Mark T. Gaterud
- 👤 Dennis D. Jamiolkowski
- 👤 Hugh D. Newman, Jr.
- 👤 Shalaby W. Shalaby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:22
CPC Classifications
A; A61; A61L; A61L31/00; A61L31/04; A61L31/041; A61B; A61B17/00; A61B17/064; A61B17/0643
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
85 words
A surgical fastener comprising a blend of at least two polymers, one of said polymers being polyglycolide homopolymer or a copolymer containing at least about 90 mole percent polymerized glycolide, the other of said polymers being polyactide homopolymer or a copolymer containing at least about 85 mole percent polymerized lactide, with the overall blend containing from about 65 to about 85 weight percent polymerized glycolide, the remainder being polymerized lactide, wherein the fastener comprising said blend is non-palpable after six to ten weeks in vivo.
Claim 2
Dependent Claim
85 words
A surgical fastener comprising a blend of at least two polymers, one of said polymers being polyglycolide homopolymer or a copolymer containing at least about 90 mole percent polymerized glycolide, the other of said polymers being polyactide homopolymer or a copolymer containing at least about 85 mole percent polymerized lactide, with the overall blend containing from about 65 to about 85 weight percent polymerized glycolide, the remainder being polymerized lactide, wherein the fastener comprising said blend is non-palpable after six to ten weeks in vivo.
Claim 3
Dependent Claim
173 words
The surgical fastener of claim 1 in the form of a surgical staple comprising: (a) a staple 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) receiving member including at least one aperture arranged and constructed to receive and retain the free end of said leg member, wherein said staple member comprises a blend of at least two polymers, one of said polymers being polyglycolide homopolymer or a copolymer containing at least about 90 mole percent polymerized glycolide, the other of said polymers being polylactide homopolyme or a copolyme containing at least about 85 mole percent polymerized lactide, with the overall blend containing from about 65 to about 85 weight percent polymerized glycolide, the remainder being polymerized lactide, and wherein said receiving member is an absorbable polymer, wherein the surgical staple has a measurable separation strength three weeks after implantation, and wherein the staple member is non-palpable six to ten weeks after implantation.
Claim 4
Dependent Claim
16 words
The surgical fastener of claim 2 wherein said absorbable polymer in said receiving member is poly(p-dioxanone).
Claim 5
Dependent Claim
24 words
The surgical fastener of claim 2 wherein said blend contains about 65 to 85 weight per cent polyglycolide homopolymer, the remainder being polylactide homopolymer.
Claim 6
Dependent Claim
25 words
The surgical fastener of claim 3 wherein said blend contains from about 65 to 85 weight per cent polyglycolide homopolymer, the remainder being polylactide homopolymer.
Claim 7
Dependent Claim
14 words
The surgical fastener of claim 1 in the form of a hemostatic 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.
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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) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |