Claims
- 1. A polymer consisting essentially of
- a) a first monomer from the group consisting .epsilon.-caprolactone, trimethylene carbonate, an ether lactone and combinations thereof;
- b) castor oil; and
- c) a second monomer selected from the group consisting of glycolide, lactide, 1,4-dioxanone and combinations thereof.
- 2. The polymer of claim 1 wherein the first monomer is .epsilon.-caprolactone and the second monomer is selected from the group consisting of glycolide, lactide and combinations thereof.
- 3. The polymer of claim 2 wherein the amount of .epsilon.-caprolactone is between about 10 to about 90 parts by weight.
- 4. The polymer of claim 3 wherein the amount of .epsilon.-caprolactone is between about 20 to about 80 parts by weight.
- 5. The polymer of claim 4 wherein the amount of castor oil is between about 5 to about 60 parts by weight.
- 6. The polymer of claim 6 wherein the amount of castor oil is between about 10 to about 50 parts by weight.
- 7. The polymer of claim 6 wherein additionally present in the polymer is glycerol.
- 8. The polymer of claim 7 wherein the amount of glycerol is between about 5 to about 30 parts by weight.
- 9. The polymer of claim 8 wherein the amount of glycerol is between about 5 to about 15 parts by weight.
- 10. The polymer of claim 9 wherein the polymer random polymer.
- 11. The polymer of claim 10 wherein the polymer has an inherent viscosity of between about 0.10 to about 0.20 dl/g determined at a concentration of 0.1 g/dl in hexafluoroisopropanol at 25.degree. C.
- 12. The polymer of claim 11 wherein the polymer has an inherent viscosity of between about 0.10 to about 0.80 dl/g determined at a concentration of 0.1 g/dl in hexafluoroisopropanol at 25.degree. C.
- 13. A suture wherein the outer surface thereof is coated with a polymer consisting essentially of
- a) a first monomer from the group consisting of .epsilon.-caprolactone trimethylene carbonate, are either lactone and combinations thereof;
- b) castor oil; and
- c) a second monomer selected from the group consisting of glycolide, lactide, 1,4-dioxanone and combinations thereof.
- 14. The suture of claim 13 wherein the amount of the polymer coated on the outer surface of the suture is between about 0.5 to about 30 weight percent.
- 15. The suture of claim 14 wherein the amount of the polymer coated on the outer surface of the suture is between about 1.0 to about 20 weight percent.
- 16. The suture of claim 14 wherein the suture is a synthetic absorbable suture composed of homopolymer or copolymers of lactone monomers selected from the group consisting of glycolide, lactide, .epsilon.-caprolactone, 1,4-dioxanone and trimethylene carbonate.
- 17. The suture of claim 15 wherein the suture is a synthetic absorbable, braided multifilament suture.
- 18. The suture of claim 16 wherein the suture is composed of polyglycolide or poly(glycolide-co-lactide).
- 19. A surgical article having a surface coated with a lubricating bioabsorbable copolymer comprising the reaction product of a predominant amount of a lactone monomer selected from the group consisting of .delta.-caprolactone, trimethylene carbonate, an ether lactone and combinations thereof; and castor oil in an amount effective to enhance the lubricity of said surface.
- 20. The article of claim 19 wherein the lactone monomer is selected from the group consisting of glycolide, lactide, 1,4-dioxanone, trimethylene carbonate, .delta.-valerolactone, .epsilon.-caprolactone, 1,4-dioxepan-2-one, 1,5-dioxepan-2-one and mixtures thereof.
- 21. The article of claim 20 wherein the lactone monomer is selected from the group consisting of .epsilon.-caprolactone, 1,4-dioxanone, trimethylene carbonate, glycolide, lactide and mixtures thereof.
- 22. The article of claim 21 wherein the lactone monomer is selected from the group consisting of .epsilon.-caprolactone, 1,4-dioxanone, glycolide, and mixtures thereof.
- 23. The article of claim 22 wherein the lactone monomer is a mixture of .epsilon.-caprolactone with either glycolide or 1,4-dioxanone.
- 24. The article of claim 23 wherein the weight ration of .epsilon.-caprolactone to either glycolide or 1,4-dioxanone is between about 10 to about 90 parts by weight.
- 25. The article of claim 24 wherein the weight ratio of .epsilon.-caprolactone to either glycolide or 1,4-dioxanone is between about 50 to about 85 parts by weight.
- 26. The article of claim 25 wherein the amount of the lactone monomer is between about 70 to about 90 parts by weight.
- 27. The article of claim 26 wherein the amount of the lactone monomer is between about 80 to about 90 parts by weight.
- 28. The article of claim 27 wherein the copolymer is random copolymer.
- 29. The article of claim 28 wherein the copolymer has an inherent viscosity of between about 0.05 to about 2.0 dl/g determined at a concentration of 0.1 g/dl in hexafluoroisopropanol at 25.degree. C.
- 30. The article of claim 29 wherein the copolymer has an inherent viscosity of between about 0.10 to about 0.80 dl/g determined at a concentration of 0.1 g/dl in hexafluoroisopropanol at 25.degree. C.
- 31. The article of claim 30 wherein additionally present in the absorbable copolymer is glycerol.
- 32. The article of claim 31 wherein the amount of glycerol is between about 0.5 to about 30 weight percent.
- 33. The article of claim 32 wherein the article is a surgical needle.
- 34. The needle of claim 33 wherein the amount of copolymer coated on the surface of the surgical needle is an amount which yields a coating thickness between about 2 to about 20 microns.
- 35. The needle of claim 34 wherein the coating thickness is between about 4 to about 8 microns.
- 36. The needle of claim 34 wherein the needle is attached to a suture.
Parent Case Info
This is a continuation-in-part of Ser. No. 08/013,858, filed Feb. 5, 1993, now abandoned and 08/015,706 filed Feb. 9, 1993 now abandoned both of which are hereby incorporated by reference.
US Referenced Citations (22)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1260488 |
Aug 1989 |
CAX |
2055717 |
Jul 1977 |
JPX |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
13858 |
Feb 1993 |
|