Claims
- 1. 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##
- 2. An article of claim 1 wherein said remaining linkages are selected from the group consisting of formulas (II) and (III).
- 3. An article of claim 1 wherein said remaining linkages are selected from the group consisting of formula (II).
- 4. An article of claim 3 wherein the formula (II) is: ##STR9##
- 5. An article of claim 3 wherein the formula (II) is: ##STR10##
- 6. An article of claim 4 wherein said formula (I) is from about 65 percent by weight.
- 7. An article of claim 6 wherein said formula (I) is about 65 to 70 percent by weight.
- 8. An article of claim 6 wherein said formula (I) is about 85 percent by weight.
- 9. 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.sub.3, 30.degree. C.).
- 10. An article of claim 4 or 9 wherein the strand is bioabsorbable.
- 11. 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.
- 12. An article of claim 10 wherein the strand is manufactured from a homopolymer prepared from the monomer glycolide.
- 13. An article of claim 10 wherein the strand is manufactured from a polymer prepared from at least the monomer lactide.
- 14. An article of claim 10 wherein the strand is manufactured from a copolymer prepared from the monomers glycolide and 1,3-dioxan-2-one.
- 15. An article of claim 13 wherein the strand is manufactured from a copolymer prepared from the monomers glycolide and lactide.
- 16. An article of claim 10 wherein the strand is in multifilamentary form.
- 17. An article of claim 16 wherein said coating comprises about 1/10 to 5 percent by weight of the coated strand.
- 18. An article of claim 17 wherein said coating comprises about 1/2 to 3 percent by weight.
- 19. 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.sub.3, 30.degree. C.), and said coating comprises about 1/10 to 5 percent by weight of the coated suture or ligature.
- 20. An article of claim 19 wherein said formula (I) is about 70 percent by weight of the coating copolymer.
- 21. An article of claim 19 wherein said formula (I) is about 85 percent by weight of the coating copolymer.
- 22. An article of claim 19 wherein the strand is manufactured from a homopolymer prepared from the monomer glycolide.
- 23. An article of claim 19 wherein the strand is manufactured from a polymer prepared from at least the monomer lactide.
- 24. An article of claim 19 wherein the strand is manufactured from a copolymer prepared from the monomers glycolide and 1,3-dioxan-2-one.
- 25. An article of claim 23 wherein the strand is manufactured from a copolymer prepared from the monomers glycolide and lactide.
- 26. An article of claim 19 wherein said coating comprises about 1/2 to 3 percent by weight of the coated suture or ligature.
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation-in-part application of U.S. Ser. No. 06/910,598 filed Sept. 23, 1986, now abandoned.
US Referenced Citations (8)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
910598 |
Sep 1986 |
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