Heterogeneous yarns for surgical articles
Heterogeneous yarns containing strands of dissimilar materials are useful in forming surgical device.
1 . A surgical device comprising: at least one heterogeneous yarn including a plurality of polyester strands in intimate contact with a plurality of polyolefin strands.
2 . A surgical device as in claim 1 , wherein the polyester strands comprise polyethylene terephthalate.
3 . A surgical device as in claim 1 , wherein the polyolefin strands comprise polyethylene.
4 . A surgical device as in claim 1 , wherein the polyolefin strands comprise ultra high molecular weight polyethylene.
5 . A surgical device as in claim 1 , wherein the at least one heterogeneous yarn further includes strands made from a material other than polyolefin or polyester.
6 . A surgical device as in claim 1 , wherein the polyester strands and polyolefin strands are twisted together to form the heterogeneous yarn.
7 . A surgical device as in claim 1 , comprising a plurality of heterogeneous yarns that are braided.
8 . A surgical device as in claim 1 , comprising plurality of heterogeneous yarns that are knitted.
9 . A surgical device as in claim 1 , comprising a plurality of heterogeneous yarns that are woven.
10 . A biocompatible surgical device comprising a textile prepared from a plurality of heterogeneous yarns having strands of polyethylene terephthalate in intimate contact with strands of ultra high molecular weight polyethylene.
11 . A biocompatible surgical device as in claim 10 , wherein the textile comprises braided heterogeneous yarns.
12 . A biocompatible surgical device as in claim 10 , wherein the textile comprises knitted heterogeneous yarns.
13 . A biocompatible surgical device as in claim 10 , wherein the textile comprises woven heterogeneous yarns.
14 . A biocompatible surgical device as in claim 10 , wherein the textile is adapted for use as a device selected from the group consisting of sutures, tapes, gauze, wound dressings, hernial repair meshes, vascular grafts, anastomosis rings, prosthetic ligaments, prosthetic tendons, growth matrices and drug delivery devices.
15 . A biocompatible surgical device as in claim 14 , wherein the textile is a braided suture.
16 . A suture comprising at least one heterogeneous yarn having polyester strands in intimate contact with polyolefin strands.
17 . A suture as in claim 16 , wherein the polyester strands comprise polyethylene terephthalate.
18 . A suture as in claim 16 , wherein the polyolefin strands comprise polyethylene.
19 . A suture as in claim 16 , wherein the polyolefin strands comprise ultra high molecular weight polyethylene.
20 . A suture as in claim 16 , wherein the heterogeneous yarn is coated with a composition containing one or more biologically active materials.