US4711241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical filament coating
Assignee: Covidien AG
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Filing: 1986-09-05
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Granted: 1987-12-08
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Expires: 2006-09-05
Abstract
Abstract The invention discloses a surgical filament having a coating comprising a compound of the formula: ##STR1## wherein x is at least 2, R' is selected from the group consisting of an alkaline-earth metal ion or radical, and R" is an alkyl group having at least 12 carbon atoms in the backbone. In a specific embodiment, the surgical filament is a bioabsorbable suture or ligature manufactured from a polymer containing at least one glycolic acid ester linkage.
Inventors
- 👤 Leonard T. Lehmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:20
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/14; A61L17/145; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A surgical filament comprising in combination a bioabsorbable suture or ligature manufactured from a copolymer containing at least one glycolic acid ester and trimethylene carbonate linkage, and having on the surface thereof a coating comprising a compound of the formula: ##STR6## wherein x is at least 2 and R' is an alkaline-earth metal ion.
Claim 2
Dependent Claim
54 words
A surgical filament comprising in combination a bioabsorbable suture or ligature manufactured from a copolymer containing at least one glycolic acid ester and trimethylene carbonate linkage, and having on the surface thereof a coating comprising a compound of the formula: ##STR6## wherein x is at least 2 and R' is an alkaline-earth metal ion.
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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) | 1990-12-07 | 1991-06-08 | 1991-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-07 | 1995-06-08 | 1995-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-07 | 1999-06-08 | 1999-12-08 | $7700.00 | Window Closed / Lapsed |