US4791929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bioabsorbable coating for a surgical article
Assignee: Covidien AG
•
Filing: 1988-03-24
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Granted: 1988-12-20
•
Expires: 2008-03-24
Abstract
Abstract A bioabsorbable coating for a surgical article comprises a copolymer manufactured from the monomer caprolactone and at least one other copolymerizable monomer. The surgical article can be a bioabsorbable suture or ligature.
Inventors
- 👤 Peter K. Jarrett
- 👤 Donald J. Casey
- 👤 Leonard T. Lehmann
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; C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/08; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
61 words
A surgical article having knot security and improved knot repositioning characteritics, the article comprising a strand, the strand having a bioabsorbable coating, the coating comprising a random copolymer, from about 50 to 85 percent by weight of the copolymer consisting of linkages of formula (I): ##STR7## and the remaining linkages comprising at least one of the formulas (II) to (VIII): ##STR8##
Claim 2
Dependent Claim
61 words
A surgical article having knot security and improved knot repositioning characteritics, the article comprising a strand, the strand having a bioabsorbable coating, the coating comprising a random copolymer, from about 50 to 85 percent by weight of the copolymer consisting of linkages of formula (I): ##STR7## and the remaining linkages comprising at least one of the formulas (II) to (VIII): ##STR8##
Claim 3
Dependent Claim
20 words
An article of claim 1 wherein said remaining linkages are selected from the group consisting of formulas (II) and (III).
Claim 4
Dependent Claim
18 words
An article of claim 1 wherein said remaining linkages are selected from the group consisting of formula (II).
Claim 5
Dependent Claim
11 words
An article of claim 3 wherein the formula (II) is: ##STR9##
Claim 6
Dependent Claim
11 words
An article of claim 3 wherein the formula (II) is: ##STR10##
Claim 7
Dependent Claim
16 words
An article of claim 4 wherein said formula (I) is from about 65 percent by weight.
Claim 8
Dependent Claim
17 words
An article of claim 6 wherein said formula (I) is about 65 to 70 percent by weight.
Claim 9
Dependent Claim
15 words
An article of claim 6 wherein said formula (I) is about 85 percent by weight.
Claim 10
Dependent Claim
32 words
An article of claim 1 or 6 or 7 or 8 wherein the inherent viscosity of said copolymer is about 0.2 to 1.4 dl/g (0.5 g/dl in CHCl 3 , 30° C.).
Claim 11
Dependent Claim
12 words
An article of claim 4 or 9 wherein the strand is bioabsorbable.
Claim 12
Dependent Claim
29 words
An article of claim 10 wherein the strand is manufactured from a polymer prepared from one or more monomers selected from the group consisting of lactides, carbonates and lactones.
Claim 13
Dependent Claim
18 words
An article of claim 10 wherein the strand is manufactured from a homopolymer prepared from the monomer glycolide.
Claim 14
Dependent Claim
20 words
An article of claim 10 wherein the strand is manufactured from a polymer prepared from at least the monomer lactide.
Claim 15
Dependent Claim
20 words
An article of claim 10 wherein the strand is manufactured from a copolymer prepared from the monomers glycolide and 1,3-dioxan-2-one.
Claim 16
Dependent Claim
20 words
An article of claim 13 wherein the strand is manufactured from a copolymer prepared from the monomers glycolide and lactide.
Claim 17
Dependent Claim
12 words
An article of claim 10 wherein the strand is in multifilamentary form.
Claim 18
Dependent Claim
20 words
An article of claim 16 wherein said coating comprises about 1/10 to 5 percent by weight of the coated strand.
Claim 19
Dependent Claim
16 words
An article of claim 17 wherein said coating comprises about 1/2 to 3 percent by weight.
Claim 20
Dependent Claim
111 words
A surgical suture or ligature comprising a bioabsorbable, multifilamentary strand manufactured from a polymer prepared from one or more monomers selected from the group consisting of glycolide, lactide, 1,3-dioxan-2-one and 1,4-dioxan-2-one, the strand having a bioabsorbable coating, the coating comprising a random copolymer, from about 65 to 85 percent by weight of the coating copolymer consisting of linkages of formula (I): ##STR11## and the remaining linkages comprising at least the formula (II): ##STR12## wherein the inherent viscosity of said copolymer is about 0.2 to 1.4 dl/g (0.5 g/dl in CHCl 3 , 30° C.), and said coating comprises about 1/10 to 5 percent by weight of the coated suture or ligature.
Claim 21
Dependent Claim
111 words
A surgical suture or ligature comprising a bioabsorbable, multifilamentary strand manufactured from a polymer prepared from one or more monomers selected from the group consisting of glycolide, lactide, 1,3-dioxan-2-one and 1,4-dioxan-2-one, the strand having a bioabsorbable coating, the coating comprising a random copolymer, from about 65 to 85 percent by weight of the coating copolymer consisting of linkages of formula (I): ##STR11## and the remaining linkages comprising at least the formula (II): ##STR12## wherein the inherent viscosity of said copolymer is about 0.2 to 1.4 dl/g (0.5 g/dl in CHCl 3 , 30° C.), and said coating comprises about 1/10 to 5 percent by weight of the coated suture or ligature.
Claim 22
Dependent Claim
19 words
An article of claim 19 wherein said formula (I) is about 70 percent by weight of the coating copolymer.
Claim 23
Dependent Claim
19 words
An article of claim 19 wherein said formula (I) is about 85 percent by weight of the coating copolymer.
Claim 24
Dependent Claim
18 words
An article of claim 19 wherein the strand is manufactured from a homopolymer prepared from the monomer glycolide.
Claim 25
Dependent Claim
20 words
An article of claim 19 wherein the strand is manufactured from a polymer prepared from at least the monomer lactide.
Claim 26
Dependent Claim
20 words
An article of claim 19 wherein the strand is manufactured from a copolymer prepared from the monomers glycolide and 1,3-dioxan-2-one.
Claim 27
Dependent Claim
20 words
An article of claim 23 wherein the strand is manufactured from a copolymer prepared from the monomers glycolide and lactide.
Claim 28
Dependent Claim
22 words
An article of claim 19 wherein said coating comprises about 1/2 to 3 percent by weight of the coated suture or ligature.
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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) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |