PROSTHESIS AND DELIVERY SYSTEM

• US 20090306760A1
• Filed: 06/06/2008
• Published: 12/10/2009
• Est. Priority Date: 06/06/2008
• Status: Abandoned Application

• Current Assignee: Back Bay Medical Incorporated (Quarterhill Inc. (f/k/a Wi-LAN Inc.))
• Original Assignee: Bay Street Medical, Inc.
• Inventors: Hebert, Stephen, Levine, Marc-Alan
• Application Number:
  US12/134,575
• Publication Number:
  US 20090306760A1
• Time in Patent Office: Days
• US Class Current: 623/1.120
• CPC Class Codes: A61B 50/30 Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40
• CPC Class Codes: A61F 2/0095 Packages or dispensers for prostheses or other implants for intraocular lenses A61F2/1691; for dental surgery A61C19/02
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/91558 connected peak to peak
• CPC Class Codes: A61F 2002/91583 by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9665 with additional retaining means
• CPC Class Codes: A61F 2220/005 using adhesives
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers

Abstract

A prosthesis delivery system including a prosthesis mounted on an elongate member. The prosthesis has longitudinally offset first and second locking members positioned on the prosthesis. The first and second locking members are configured to engage opposing proximal and distal sides of a radially extending member on the elongate member to lock or limit the longitudinal position of the prosthesis on the elongate member during delivery of the prosthesis to a treatment site.

Claims

1. A prosthesis delivery system comprising:

an elongate flexible guide having a proximal section and a distal section, the distal section configured for mounting a prosthesis and having a first radially extending member positioned proximal to a distal end of the elongate guide, the first radially extending member having a proximal side and a distal side, the prosthesis mounted on the distal section of the elongate guide and having a body comprising proximal and distal ends, the prosthesis having first and second locking members coupled to the proximal end of the prosthesis body, the first locking member positioned on the proximal side of the first radially extending member, the second locking member positioned on the distal side of the first radially extending member; and

a sheath disposed over at least a portion of the elongate guide to constrain the prosthesis on the elongate guide.

2. A prosthesis delivery system according to claim 1 wherein the sheath is a catheter.

3. A prosthesis delivery system according to claim 1 wherein the proximal end of the prosthesis body comprises struts that form at least one short peak and at least one long peak, the first locking member located on the long peak, the second locking member located on the short peak.

4. A prosthesis delivery system according to claim 1 further comprising a first proximal extension attached to the proximal end of the prosthesis body, the first and second locking members located on the first proximal extension.

5. A prosthesis delivery system according to claim 1 further comprising a first proximal extension having a first length attached to the proximal end of the prosthesis body and a second proximal extension having a second length less than the first length attached to the proximal end of the prosthesis body, the first locking member located on the first proximal extension and the second locking member located on the second proximal extension.

6. A prosthesis delivery system according to claim 1 wherein the prosthesis has a plurality of first locking members and a plurality of second locking members.

7. A prosthesis delivery system according to claim 1 wherein at least one of the first and second locking members comprises a radiopaque material.

8. A prosthesis delivery system according to claim 1 wherein at least one of the first and second locking members comprises a bioabsorbable material.

9. A prosthesis delivery system according to claim 1 wherein the proximal side of the first radially extending member includes a first ledge situated above the elongate guide, a distal segment of the first locking member residing on the first ledge.

10. A prosthesis delivery system according to claim 1 wherein the distal side of the first radially extending member includes a second ledge situated above the elongate guide, a proximal segment of the second locking member residing on the second ledge.

11. A prosthesis delivery system according to claim 1 wherein the first radially extending member comprises a radiopaque material.

12. A prosthesis delivery system according to claim 1 wherein the first radially extending member comprises a cylindrical member.

13. A prosthesis delivery system according to claim 12 wherein the cylindrical member comprises a coil.

14. A prosthesis delivery system according to claim 5 wherein the first radially extending member comprises a recess for receiving a portion of the first extension.

15. A prosthesis delivery system according to claim 1 wherein the first locking member comprises an L-shaped member having a face for engaging the proximal side of the first radially extending member and wherein the second locking member comprises an L-shaped member having a face for engaging the distal side of the first radially extending member.

16. A prosthesis delivery system according to claim 1 further comprising a second radially extending member positioned distal to the first radially extending member and proximal to the distal end of the elongate guide, the second radially extending member having a proximal side and a distal side, the prosthesis having third and fourth locking members coupled to the distal end of the prosthesis body, the third locking member positioned on the distal side of the second radially extending member, the fourth locking member positioned on the proximal side of the second radially extending member.

17. A prosthesis delivery system according to claim 16 wherein the distal end of the prosthesis body comprises struts that form at least one short peak and at least one long peak, the third locking member located on the long peak, the fourth locking member located on the short peak.

18. A prosthesis delivery system according to claim 16 further comprising a first distal extension attached to the distal end of the prosthesis body, the third and fourth locking members being located on the first distal extension.

19. A prosthesis delivery system according to claim 16 further comprising first and second distal extensions attached to the distal end of the prosthesis body, the third locking member located on the first distal extension and the fourth locking member located on the second distal extension.

20. A prosthesis delivery system according to claim 16 wherein the prosthesis has a plurality of third locking members and a plurality of fourth locking members.

21. A prosthesis delivery system according to claim 16 wherein at least one of the third and fourth locking members comprises a radiopaque material.

22. A prosthesis delivery system according to claim 16 wherein the second radially extending member comprises a radiopaque material.

23. A prosthesis delivery system according to claim 16 wherein the second radially extending member comprises a cylindrical member.

24. A prosthesis delivery system according to claim 23 wherein the cylindrical member comprises a coil.

25. A prosthesis delivery system according to claim 23 wherein the second radially extending member comprises a recess for receiving a portion of the third extension.

26. A prosthesis delivery system according to claim 16 wherein the third locking member comprises an L-shaped member having a face for engaging the distal side of the second radially extending member and wherein the fourth locking member comprises an L-shaped member having a face for engaging the proximal side of the second radially extending member.

27. A prosthesis delivery system according to claim 1 further comprising a second radially extending member positioned distal to the first radially extending member and proximal to the distal end of the elongate guide, the second radially extending member having a proximal side and a distal side, the prosthesis having at least one feature in abutting or near abutting relationship to the proximal and/or distal side of the second radially extending member.

28. A prosthesis delivery system according to claim 1 further comprising a second radially extending member positioned distal to the first radially extending member and proximal to the distal end of the elongate guide, the second radially extending member having a proximal side and a distal side, the prosthesis having a third locking member coupled to the distal end of the prosthesis body and positioned on the proximal side of the second radially extending member.

29. A prosthesis delivery system according to claim 1 wherein the sheath is a packaging sheath.

30. A prosthesis delivery system comprising:

an elongate flexible guide having a proximal section and a distal section, the distal section configured for mounting a prosthesis and having a first radially extending member positioned proximal to a distal end of the elongate guide, the first radially extending member having a proximal side and a distal side, the prosthesis mounted on the distal section of the elongate guide and having a body comprising proximal and distal ends, the prosthesis having a first locking member coupled to the proximal end of the prosthesis body, the first locking member positioned on the proximal side of the first radially extending member, the proximal end of the prosthesis body abutting or nearly abutting the distal side of the first radially extending member; and

a sheath disposed over at least a portion of the elongate guide to constrain the prosthesis on the elongate guide.

31. A prosthesis delivery system according to claim 30 wherein the sheath is a catheter.

32. A prosthesis delivery system according to claim 30 wherein the proximal end of the prosthesis body comprises struts that form at least one short peak and at least one long peak, the first locking member located on the long peak, the short peaks abutting or nearly abutting the distal side of the first radially extending member.

33. A prosthesis delivery system according to claim 30 further comprising a first proximal extension attached to the proximal end of the prosthesis body, the first locking member located on the first proximal extension.

34. A prosthesis delivery system according to claim 30 wherein the prosthesis has a plurality of first locking members.

35. A prosthesis delivery system according to claim 30 wherein the first locking member comprises a radiopaque material.

36. A prosthesis delivery system according to claim 30 wherein the first locking member comprises a bioabsorbable material.

37. A prosthesis delivery system according to claim 30 wherein the proximal side of the first radially extending member includes a first ledge situated above the elongate guide, a distal segment of the first locking member residing on the first ledge.

38. A prosthesis delivery system according to claim 30 wherein the first radially extending member comprises a radiopaque material.

39. A prosthesis delivery system according to claim 30 wherein the first radially extending member comprises a cylindrical member.

40. A prosthesis delivery system according to claim 39 wherein the cylindrical member comprises a coil.

41. A prosthesis delivery system according to claim 33 wherein the first radially extending member comprises a recess for receiving a portion of the first extension.

42. A prosthesis delivery system according to claim 30 wherein the first locking member comprises an L-shaped member having a face for engaging the proximal side of the first radially extending member.

43. A prosthesis delivery system according to claim 30 further comprising a second radially extending member positioned distal to the first radially extending member and proximal to the distal end of the elongate guide, the second radially extending member having a proximal side and a distal side, the prosthesis having at least one feature in abutting or near abutting relationship to the proximal and/or distal side of the second radially extending member.

44. A prosthesis delivery system according to claim 43 wherein the at least one feature comprises a radiopaque material.

45. A prosthesis delivery system according to claim 43 wherein the at least one feature comprises a bioabsorbable material.

46. A prosthesis delivery system according to claim 43 wherein the second radially extending member comprises a radiopaque material.

47. A prosthesis delivery system according to claim 30 wherein the sheath is a packaging sheath.

48. A prosthesis delivery system comprising:

an elongate flexible guide having a proximal section and a distal section, the distal section configured for mounting a prosthesis and having a first radially extending member positioned proximal to a distal end of the elongate guide, the first radially extending member having a proximal side and a distal side, the prosthesis mounted on the distal section of the elongate guide and having a body comprising proximal and distal ends, the proximal end of the prosthesis body comprising struts, a first locking member and a second locking member positioned on one or more of the struts, the first locking member positioned on the proximal side of the first radially extending member, the second locking member positioned on the distal side of the first radially extending member; and

a sheath disposed over at least a portion of the elongate guide to constrain the prosthesis on the elongate guide.

49. A prosthesis delivery system according to claim 48 wherein the sheath is a catheter.

50. A prosthesis delivery system according to claim 48 wherein the prosthesis has a plurality of first locking members and a plurality of second locking members.

51. A prosthesis delivery system according to claim 48 wherein at least one of the first and second locking members comprises a radiopaque material.

52. A prosthesis delivery system according to claim 48 wherein at least one of the first and second locking members comprises a bioabsorbable material.

53. A prosthesis delivery system according to claim 48 wherein the first radially extending member comprises a radiopaque material.

54. A prosthesis delivery system according to claim 48 wherein the first radially extending member comprises a cylindrical member.

55. A prosthesis delivery system according to claim 54 wherein the cylindrical member comprises a coil.

56. A prosthesis delivery system according to claim 48 further comprising a second radially extending member positioned distal to the first radially extending member and proximal to a distal end of the elongate guide, the second radially extending member having a proximal side and a distal side, the prosthesis having at least one feature in abutting or near abutting relationship to the proximal and/or distal side of the second radially extending member.

57. A prosthesis delivery system according to claim 56 wherein the at least one feature comprises a radiopaque material.

58. A prosthesis delivery system according to claim 56 wherein the second radially extending member comprises a radiopaque material.

59. A prosthesis delivery system according to claim 48 wherein the sheath is a packaging sheath.

60. A prosthesis delivery system comprising:

an elongate flexible guide having a proximal section and a distal section, the distal section configured for mounting a prosthesis and having a first radially extending member positioned proximal to a distal end of the elongate guide, the first radially extending member having a proximal side and a distal side, the prosthesis mounted on the distal section of the elongate guide and having a longitudinal body comprising proximal and distal ends, a plurality of longitudinally offset first and second locking members extending from the proximal end of the prosthesis body, the first locking members configured to engage a proximal side of the first axially extending member, the second locking member configured to engage a distal side of the first axially extending member; and

a sheath disposed over at least a portion of the elongate guide to constrain the prosthesis on the elongate guide.

61. A prosthesis delivery system according to claim 60 wherein the sheath is a catheter.

62. A prosthesis delivery system according to claim 60 wherein the sheath is a packaging sheath.