Patent US5100433A successfully refreshed from Google Patents.
US5100433A
Expired / Lapsed
US
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Suture coated with a copolymer coating composition
Assignee: Ethicon Inc
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Filing: 1990-11-08
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Granted: 1992-03-31
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Expires: 2010-11-08
Abstract
Abstract A surgical suture having a coating thereon of a copolymer of a predominant amount of p-dioxanone and the balance ε-caprolactone, and a method for improving the knot tiedown performance of a suture by first coating a solution of the coating copolymer onto the surface of the suture and then removing the solvent from the coated suture.
Inventors
- 👤 Rao S. Bezwada
- 👤 Alastair W. Hunter
- 👤 Shalaby W. Shalaby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:28
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/14; A61L17/145
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
46 words
A suture wherein the surface thereof is coated with a coating copolymer of a predominant amount of p-dioxanone and the balance ε-caprolactone, in an amount effective to improve the knot tiedown performance of the coated suture relative to the knot tiedown performance of the uncoated suture.
Claim 2
Dependent Claim
46 words
A suture wherein the surface thereof is coated with a coating copolymer of a predominant amount of p-dioxanone and the balance ε-caprolactone, in an amount effective to improve the knot tiedown performance of the coated suture relative to the knot tiedown performance of the uncoated suture.
Claim 3
Dependent Claim
23 words
The suture of claim 1 wherein the amount of p-dioxanone in the coating copolymer is between about 55 and about 95 mole percent.
Claim 4
Dependent Claim
23 words
The suture of claim 2 wherein the amount of p-dioxanone in the coating copolymer is between about 55 to about 80 mole percent.
Claim 5
Dependent Claim
32 words
The suture of claim 3 wherein the amount of copolymer coated onto the surface of the suture ranges between about 1 to about 12 percent of the weight of the coated suture.
Claim 6
Dependent Claim
22 words
The suture of claim 4 wherein the intrinsic viscosity of the coating copolymer is between about 0.2 dl/g and about 0.8 dl/g.
Claim 7
Dependent Claim
12 words
The suture of claim 5 wherein the suture is a multifilament suture.
Claim 8
Dependent Claim
13 words
The suture of claim 7 wherein the multifilament suture is an absorbable suture.
Claim 9
Dependent Claim
19 words
The suture of claim 7 wherein the suture is prepared from a fiber-forming polymer of one or more lactones.
Claim 10
Dependent Claim
14 words
The suture of claim 8 wherein the suture is Vicryl® poly(lactone-co-glycolide) braided multifilament suture.
Claim 11
Independent Claim
56 words
A method of improving the knot tiedown performance of a suture comprising the steps of: a) coating the surface of the suture with an effective amount of a solution of a copolymer of a predominant amount of p-dioxanone and the balance ε-caprolactone in an organic solvent, and then b) removing the solvent from the coated suture.
Claim 12
Independent Claim
56 words
A method of improving the knot tiedown performance of a suture comprising the steps of: a) coating the surface of the suture with an effective amount of a solution of a copolymer of a predominant amount of p-dioxanone and the balance ε-caprolactone in an organic solvent, and then b) removing the solvent from the coated suture.
Claim 13
Dependent Claim
32 words
The method of claim 10 wherein the solution of coating copolymer is a solution of between about 1 and about 25 weight percent of the copolymer in trifluoroethanol, chloroform, methylenechloride or 1,1,2-trichloroethane.
Claim 14
Dependent Claim
17 words
The method of claim 11 wherein the solvent is removed by drying the coated suture in air.
Claim 15
Dependent Claim
15 words
The method of claim 12 wherein the coated suture is dried at an elevated temperature.
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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) | 1995-03-31 | 1995-09-30 | 1996-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-31 | 1999-09-30 | 2000-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-31 | 2003-09-30 | 2004-03-31 | $7700.00 | Window Closed / Lapsed |