Yarns containing filaments made from shape memory alloys

• US 20060089672A1
• Filed: 10/25/2004
• Published: 04/27/2006
• Est. Priority Date: 10/25/2004
• Status: Abandoned Application

• Current Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Martinek, Jonathan
• Application Number:
  US10/972,464
• Publication Number:
  US 20060089672A1
• Time in Patent Office: Days
• US Class Current: 606/228
• CPC Class Codes: A61L 17/04 Non-resorbable materials
• CPC Class Codes: A61L 17/10 containing macromolecular materials
• CPC Class Codes: A61L 2400/16 Materials with shape-memory or superelastic properties

Abstract

Braids and surgical devices are made from yarns that include at least one filament made from a shape memory material.

Claims

11. A multifilament surgical device comprising a first set and a second set of continuous and discrete yarns in a braided construction;

and

each yarn from the first set contains a plurality of filaments made from at least one material selected from the group consisting of polyamides, polyesters, polyacrylonitrile, polyethylene, ultra high molecular weight polyethylene, polypropylene, polyglycolic acid, polylactic acid, polydioxanone, polyepsilon-caprolactone, and polytrimethylene carbonate; and

each yarn from the second set contains at least one filament made from shape memory material.

12. The surgical device as in claim 11 wherein the shape memory material is selected from the group consisting of nitinol (TiNi), CuZnAl, CuAlNi and FeNiAl.

13. The surgical device as in claim 11 wherein the shape memory material is nitinol (TiNi).

14. A heterogeneous yarn comprising at least one filament made from a polymeric material and at least one filament made from a shape memory material.

15. A heterogeneous yarn as in claim 14 wherein at least one filament is made from a biodegradable polymeric material.

16. A heterogeneous yarn as in claim 14 wherein at least one filament is made from a non-biodegradable polymeric material.

17. A heterogeneous yarn as in claim 14 wherein the shape memory material is selected from the group consisting of nitinol (TiNi), CuZnAl, CuAlNi and FeNiAl.

18. A surgical device comprising a heterogeneous yarn in accordance with claim 14.

19. A surgical device as in claim 18 which is selected from the group consisting of a suture, mesh, sternal closure device, cable, tape and tether.

20. A sterile braid comprising a heterogeneous yarn in accordance with claim 14.

21. A multifilament surgical device comprising a plurality of heterogeneous yarn, each heterogeneous yarn including first and second filaments, the plurality of yarns being in a braided construction wherein;

the first filaments are made from at least one fiber-forming material selected the group consisting of polyamides, polyesters, polyacrylonitrile, polyethylene, polypropylene, polyglycolic acid, polylactic acid, polydioxanone, polyepsilon-caprolactone, and polytrimethylene carbonate; and

the second filaments are made from a shape memory material.

22. A multifilament surgical device as in claim 21 wherein the shape memory material is selected from the group consisting of nitinol (TiNi), CuZnAl, CuAlNi and FeNiAl.

23. A multifilament surgical device as in claim 21 wherein the shape memory material is nitinol (NiTi).

24. A multifilament surgical device comprising a first set and a second set of continuous and discrete heterogeneous yarns, each of the heterogeneous yarns containing first and second continuous and discrete filaments,

the first filaments being made from a polymeric material;

and

the second filaments being made from a shape memory material.

25. A multifilament surgical device of claim 24 wherein the first filaments are made from a biodegradable polymeric material

26. A multifilament surgical device of claim 24 wherein the first filaments are made from a non-biodegradable polymeric material.

27. A multifilament surgical device of claim 24 wherein the shape memory material is selected from the group consisting of nitinol (TiNi), CuZnAl, CuAlNi and FeNiAl.

28. A multifilament surgical device of claim 24, wherein the shape memory material is nitinol (NiTi).

29. A multifilament surgical device of claim 24 wherein the heterogeneous yarns are formed into a device selected from the group consisting of a suture, mesh, a sternal closure device, a cable, a tape and a tether.

30. A multifilament surgical device comprising a braid including a first set and a second set of continuous and discrete yarns in a braided construction;

the first set of yarns being heterogeneous yarns containing first and second filaments wherein;

the first set of filaments are made from a polymeric material; and

at least one of the second filaments is made from a shape memory material.

31. A multifilament surgical device as in claim 30 wherein the second set of yarns are homogeneous yarns.

32. A multifilament surgical device as in claim 30 wherein the shape memory material is selected from the group consisting of nitinol (TiNi), CuZnAl, CuAlNi and FeNiAl.

33. A multifilament surgical device as in claim 30 wherein the shape memory material is nitinol (NiTi).

34. A multifilament surgical device as in claim 30 wherein the polymeric material is selected from the group consisting of polyamides, polyesters, polyacrylonitrile, polyethylene, polypropylene, polyglycolic acid, polylactic acid, polydioxanone, polyepsilon-caprolactone, and polytrimethylene carbonate.

35. A method of closing a wound in tissue comprising:

a. providing a suture comprising first yarns and second yarns in a braided construction wherein the first yarns include a plurality of filaments comprising a polymeric material, and the second yarns include a plurality of filaments comprising a shape memory material; and

b. passing said suture through the tissue;

c. securing the ends of said suture to approximate the tissue.

36. A method of securing soft tissue to hard tissue comprising:

a. providing a surgical device fabricated from first yarns and second yarns in a braided construction wherein the first yarns include a plurality of filaments comprising a polymeric material and the second yarns include a plurality of filaments comprising a shape memory material;

b. passing said surgical device through the soft tissue;

c. securing said surgical device to the hard tissue;

d. manipulating said surgical device to approximate the soft tissue and hard tissue.

37. The method of claim 36 wherein the step of securing said surgical device to hard tissue further comprises passing said surgical device through an opening formed in the hard tissue.

38. The method of claim 36 wherein the step of securing said surgical device to hard tissue further comprises mounting said surgical device to a suture anchor.

39. The method of claim 36 wherein the step of securing said surgical device to hard tissue further comprises passing the surgical device around hard tissue.

40. The method of claim 36 wherein the step of manipulating said surgical device to approximate the soft tissue and hard tissue comprises forming a knot in said surgical device.

41. A method of approximating hard tissues comprising:

a. providing a multifilament surgical device fabricated from a heterogeneous braid comprising a first yarn and a second yarn in a braided construction wherein the first yarn includes a plurality of filaments comprising a polymeric material; and

the second yarn includes a plurality of filaments comprising shape memory material; and

b. manipulating the multifilament surgical device to approximate the hard tissues.

1. A surgical device comprising first yarns and multifilament second yarns in a braided construction wherein

the first yarns are made from a polymeric material;

and

the second yarns comprise at least one filament made from a shape memory material.

2. The surgical device as in claim 1 wherein the polymeric material is a biodegradable polymeric material.

3. The surgical device as in claim 1 wherein the polymeric material is a non-biodegradable polymeric material.

4. The surgical device as in claim 1 wherein the shape memory material is selected from the group consisting of nitinol (TiNi), CuZnAl, CuAlNi and FeNiAl.

5. The surgical device as in claim 1 wherein the shape memory material is nitinol (TiNi).

6. The surgical device as in claim 1 wherein the first yarns include art least one filament made from at least one material selected from the group consisting of polyamides, polyesters, polyacrylonitrile, polyethylene, ultra high molecular weight polyethylene, polypropylene, polyglycolic acid, polylactic acid, polydioxanone, polyepsilon-caprolactone, and polytrimethylene carbonate.

7. The surgical device as in claim 1 wherein the first yarns are multifilament yarns.

8. The surgical device as in claim 1 wherein the braid is configured and dimensioned to form a device selected from the group consisting of a suture, mesh, sternal closure device, cable, tape and tether.

9. The surgical device as in claim 7 wherein all the filaments of the first yarn are made from a polymeric material.

10. The surgical device as in claim 1 wherein all the filaments of the second yarn are made from a shape memory material.

42. A method as in claim 41 further comprising the step of securing the surgical device to hard tissue.

43. A method as in claim 41 wherein said step of providing a multifilament surgical device comprises providing a multifilament surgical device in which said second yarn includes a plurality of filaments comprising nitinol (NiTi).

46. A surgical device as in claim 44 wherein the second set of yarns are homogeneous yarns.

47. A surgical device as in claim 43 wherein said polymeric material is selected from the group consisting of polyamides, polyesters, polyacrylonitrile, polyethylene, polypropylene, polyglycolic acid, polylactic acid, polydioxanone, polyepsilon-caprolactone, and polytrimethylene carbonate.

48. A surgical device as in claim 43 wherein the second set of yarns comprise a biodegradable material.

49. A surgical device as in claim 43 wherein the shape memory material is selected from the group consisting of nitinol (TiNi), CuZnAl, CuAlNi and FeNiAl.

50. A surgical device as in claim 43 wherein the shape memory material is nitinol (NiTi).

44. A surgical device comprising:

a suture anchor;

at least one suture secured to the suture anchor, the suture having a braid including of a first set and a second set of continuous and discrete yarns in a braided construction; and

the first set of yarns being heterogeneous yarns containing first and second filaments wherein;

the first set of filaments are made from a polymeric material; and

at least one of the second filaments is made from a shape memory material

45. A surgical device as in claim 44 wherein the second set of yarns are heterogeneous yarns containing first and second filaments wherein:

the first set of filaments are made from a polymeric material; and

at least one of the second filaments is made from a shape memory material.

46-1. A surgical device as in claim 43 wherein the second set of yarns comprise a non-biodegradable material.