US4624256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caprolactone polymers for suture coating
Assignee: Technology Holding Co II
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Filing: 1985-09-11
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Granted: 1986-11-25
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Expires: 2005-09-11
Abstract
Abstract High molecular weight caprolactone polymers are coated on surgical sutures to improve suture properties such as smooth surface, single knot slipdown, two throw knot slipdown for repositioning, and three throw knot security.
Inventors
- 👤 Kenneth A. Messier
- 👤 Joseph D. Rhum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:35
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/14; A61L17/145
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
107 words
A surgical suture comprising a braided multifilament of poly(glycolic acid or a copolymer containing at least 85% glycolic acid units coated with a lubricating agent selected from the group consisting of a high molecular weight homopolymer of caprolactone, a high molecular weight copolymer of at least 90% by weight of caprolactone and the remainder another biodegradable monomer, and a blend of at least 50% by weight of said homopolymer of said copolymer of caprolactone and up to 50% by weight of another biodegradable lubricating agent, said homopolymer or copolymer of caprolactone having a melt viscosity at 60° C. of at least about 50,000 centipoise or being solid.
Claim 2
Dependent Claim
107 words
A surgical suture comprising a braided multifilament of poly(glycolic acid or a copolymer containing at least 85% glycolic acid units coated with a lubricating agent selected from the group consisting of a high molecular weight homopolymer of caprolactone, a high molecular weight copolymer of at least 90% by weight of caprolactone and the remainder another biodegradable monomer, and a blend of at least 50% by weight of said homopolymer of said copolymer of caprolactone and up to 50% by weight of another biodegradable lubricating agent, said homopolymer or copolymer of caprolactone having a melt viscosity at 60° C. of at least about 50,000 centipoise or being solid.
Claim 3
Dependent Claim
25 words
A suture according to claim 1 wherein said other biodegradable lubricating agent is a mixture of sterol esters of C 10 -C 30 fatty acids.
Claim 4
Dependent Claim
16 words
A suture according to claim 2 wherein said sterol is a mixture of cholesterol and lanosterol.
Claim 5
Dependent Claim
28 words
A suture according to claim 1 wherein said lubricating agent is present in an amount of 0.5 to 10% by weight based on the weight of the suture.
Claim 6
Dependent Claim
106 words
A needled surgical suture comprising at least one filament of poly(glycolic acid) or a copolymer containing at least 85% glycolic acid units coated with a lubricating agent selected from the group consisting of a high molecular weight homopolymer of caprolactone, a high molecular weight copolymer of at least 90% by weight of caprolactone and the remainder another biodegradable monomer, and a blend of at least 50% by weight of said homopolymer or said copolymer of caprolactone and up to 50% by weight of another biodegradable lubricating agent, said homopolymer or copolymer of caprolactone having a melt viscosity of 60° C. of at least about 50,000 centipoise.
Claim 7
Dependent Claim
106 words
A needled surgical suture comprising at least one filament of poly(glycolic acid) or a copolymer containing at least 85% glycolic acid units coated with a lubricating agent selected from the group consisting of a high molecular weight homopolymer of caprolactone, a high molecular weight copolymer of at least 90% by weight of caprolactone and the remainder another biodegradable monomer, and a blend of at least 50% by weight of said homopolymer or said copolymer of caprolactone and up to 50% by weight of another biodegradable lubricating agent, said homopolymer or copolymer of caprolactone having a melt viscosity of 60° C. of at least about 50,000 centipoise.
Claim 8
Dependent Claim
27 words
A needled surgical suture according to claim 5 wherein said other biodegradable lubricating agent is a mixture of sterol esters of C 10 -C 30 fatty acids.
Claim 9
Dependent Claim
120 words
A surgical suture package comprising a sterile enclosure containing a sterile needled surgical suture, the suture comprising at least one filament of poly(glycolicacid) or a copolymer containing at least 85% glycolic acid units coated with a lubricating agent selected from the group consisting of a high molecular weight homopolymer of caprolactone, a high molecular weight copolymer of at least 90% by weight of caprolactone and the remainder another biodegradable monomer, and a blend of at least 50% by weight of said homopolymer of said copolymer of caprolactone and up to 50% by weight of another biodegradable lubricating agent, said homopolymer or copolymer of caprolactone having a melt viscosity at 60° C. of at least about 50,000 centipoise or being solid.
Claim 10
Dependent Claim
120 words
A surgical suture package comprising a sterile enclosure containing a sterile needled surgical suture, the suture comprising at least one filament of poly(glycolicacid) or a copolymer containing at least 85% glycolic acid units coated with a lubricating agent selected from the group consisting of a high molecular weight homopolymer of caprolactone, a high molecular weight copolymer of at least 90% by weight of caprolactone and the remainder another biodegradable monomer, and a blend of at least 50% by weight of said homopolymer of said copolymer of caprolactone and up to 50% by weight of another biodegradable lubricating agent, said homopolymer or copolymer of caprolactone having a melt viscosity at 60° C. of at least about 50,000 centipoise or being solid.
Claim 11
Dependent Claim
25 words
A package according to claim 7 wherein said other biodegradable lubricating agent is a mixture of sterol esters of C 10 -C 30 fatty acids.
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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) | 1989-11-24 | 1990-05-26 | 1990-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-24 | 1994-05-26 | 1994-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-24 | 1998-05-26 | 1998-11-25 | $7700.00 | Window Closed / Lapsed |