Thoracic graft and delivery catheter

• US 5,693,083 A
• Filed: 12/15/1994
• Issued: 12/02/1997
• Est. Priority Date: 12/09/1983
• Status: Expired due to Term

• Current Assignee: Lifeport Sciences LLC (Acacia Research Corporation)
• Original Assignee: EndoVascular Technologies Incorporated (Boston Scientific Corporation)
• Inventors: Baker, Steve G., Dake, Michael D., Dillow, David C., Escano, Arnold
• Primary Examiner(s): Milano, Michael J.
• Application Number:
  US08/358,067
• Time in Patent Office: 1,083 Days
• Field of Search: 623/1, 623/12, 606/195, 600/36
• US Class Current: 623/1.11
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2/89 the wire-like elements comprising two or more adjacent rings flexibly connected by separate members
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/958 Inflatable balloons for placing stents or stent-grafts
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/3008 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2002/30451 soldered or brazed or welded
• CPC Class Codes: A61F 2002/8486 provided on at least one of the ends
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2220/0058 soldered or brazed or welded
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61M 2025/1068 having means for varying the length or diameter of the deployed balloon, this variations could be caused by excess pressure
• CPC Class Codes: A61M 25/10 : Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

A delivery catheter having an inner catheter assembly, an inferior capsule catheter, and a capsule jacket assembly for use in deploying a graft having a compressible and expandable attachment systems in the thoracic region of an aorta. The graft is comprised of a tubular member having superior and inferior ends, each having an attachment system with wall engaging members secured thereto and is crimped along its midsection to resist kinking and elongation. The delivery catheter includes an inferior capsule assembly for releasably retaining the inferior attachment system of the graft and a superior capsule assembly for releasably retaining the superior attachment system of the graft as well as a releasing system for maintaining the attachment systems in a compressed configuration and for facilitating expansion of the attachment systems. The delivery catheter also includes an anti-elongation wire attached to the inner catheter assembly to prevent stretching of the delivery catheter during deployment of the graft within the aorta. Upon removing the attachment systems from the capsule, the releasing system functions to allow the attachment systems to assume their expanded configuration and engage the walls of the aorta. The graft and attachment systems remain in the vessel after the delivery catheter is withdrawn.

Claims

1. A system for repairing a lumen, said system comprising:

a graft having a tubular body, a superior end and an inferior end;

a superior attachment system secured to said superior end of said graft and an inferior attachment system secured to said inferior end of said graft, said superior and inferior attachment systems having a first configuration and a second configuration, said first configuration compressed from said second configuration; and

a delivery catheter adapted to be placed within the lumen and for placing said graft within the lumen, said delivery catheter having a releasing system, said releasing system including a superior tie to retain said superior attachment system in said first configuration and an inferior tie to retain said inferior attachment system in said first configuration, said superior and inferior ties configured to remain permanent with said graft upon placement of said graft within the lumen and removal of said delivery catheter from the lumen.

2. The system of claim 1, wherein said releasing system further includes at least one release wire cooperating with said superior and inferior ties to retain said superior and inferior attachment systems in said first configuration and to place said superior and inferior attachment systems in said second configuration.

3. The system of claim 2, wherein said delivery catheter includes an anti-elongation wire.

4. The system of claim 3, wherein said delivery catheter includes an inner catheter, an inferior capsule catheter, an inferior capsule assembly attached to said inferior capsule catheter, and a superior capsule assembly, said inner catheter disposed within said inferior capsule assembly, said superior capsule assembly and said inferior capsule catheter;

said inferior capsule catheter, said superior capsule assembly and said inner catheter assembly each adapted to move relative to each other; and

said superior capsule assembly adapted to contain said superior attachment system and said inferior capsule assembly adapted to contain said inferior attachment system.

5. The system of claim 4, wherein said delivery catheter further includes a capsule jacket assembly, said capsule jacket assembly adapted to overlay and move relative to said inferior capsule catheter, said superior capsule assembly and said inner catheter.

6. The system of claim 4, wherein said inner catheter includes a control wire lumen adapted to slidably receive a control wire, said control wire having a distal end secured to said superior capsule assembly.

7. The system of claim 4, wherein said superior capsule assembly includes a flexible and tapered nose cone.

8. The system of claim 4, wherein said inner catheter includes an anti-elongation lumen adapted to receive said anti-elongation wire and at least one notch in communication with said anti-elongation lumen, said anti-elongation wire adapted to exit said anti-elongation lumen through said notch and to be affixed to an exterior of said inner catheter.

9. The system of claim 4, wherein said inner catheter includes a release wire lumen adapted to receive said release wire and at least one notch in communication with said release wire lumen, said release wire exiting said release wire lumen through said at least one notch to engage said tie and to reenter said release wire lumen through said notch.

10. The system of claim 9, wherein said inner catheter includes a conical-shaped knob cooperating with said superior capsule assembly for retracting said superior capsule assembly through said graft.

11. The system of claim 4, wherein said inner catheter includes a release wire lumen, said release wire slidably disposed in said release wire lumen, an inferior notch and a superior notch each in communication with said release wire lumen, said release wire exiting said inferior notch, engaging said inferior tie and reentering said inferior notch, said release wire further exiting said superior notch, engaging said superior tie and reentering said superior notch.

12. The system of claim 11, wherein said superior and inferior ties each include a single suture, each said suture secured at a midpoint to said graft, formed into two loops through which said release wire is threaded and affixed at their ends to said graft.

13. The system of claim 12, wherein each said suture is secured to said graft so that each said suture resides exterior said graft.

14. The system of claim 13, wherein said release wire passes through a wall of said graft near said inferior end of said graft to engage said inferior tie and passes through said wall of said graft near said superior end of said graft to engage said superior tie.

15. The system of claim 13, wherein each said suture is passed through a wall of said graft to engage said release wire.

16. A system for repairing a lumen, said system comprising:

a graft having a tubular body, a superior end and an inferior end;

a superior expandable attachment system secured to said superior end of said graft and an inferior expandable attachment system secured to said inferior end of said graft, said superior and inferior expandable attachment systems having a first configuration and a second configuration, said first configuration compressed from said second configuration; and

a delivery catheter for placing said graft within the lumen, said delivery catheter having a releasing system, said releasing system including a superior tie to retain said superior expandable attachment system in said first configuration and an inferior tie to retain said inferior expandable attachment system in said first configuration, wherein said delivery catheter includes an inner catheter, an inferior capsule catheter, an inferior capsule assembly attached to said inferior capsule catheter, and a superior capsule assembly, said inner catheter disposed within said inferior capsule assembly, said superior capsule assembly and said inferior capsule catheter;

said inferior capsule catheter, said superior capsule assembly and said inner catheter assembly each adapted to move relative to each other; and

said superior capsule assembly adapted to contain said superior expandable attachment system and said inferior capsule assembly adapted to contain said inferior expandable attachment system.

17. The system of claim 16, wherein said releasing system further includes at least one release wire cooperating with said superior and inferior ties to retain said superior and inferior expandable attachment systems in said first configuration and to place said superior and inferior expandable attachment systems in said second configuration.

18. The system of claim 17, wherein said delivery catheter includes an anti-elongation wire.

19. The system of claim 16, wherein said delivery catheter further includes a capsule jacket assembly, said capsule jacket assembly adapted to overlay and move relative to said inferior capsule catheter, said superior capsule assembly and said inner catheter.

20. The system of claim 16, wherein said inner catheter includes a control wire lumen adapted to slidably receive a control wire, said control wire having a distal end secured to said superior capsule assembly.

21. The system of claim 16, wherein said superior capsule assembly includes a flexible and tapered nose cone.

22. The system of claim 16, wherein said inner catheter includes an anti-elongation lumen adapted to receive said anti-elongation wire and at least one notch in communication with said anti-elongation lumen, said anti-elongation wire adapted to exit said anti-elongation lumen through said notch and to be affixed to an exterior of said inner catheter.

23. The system of claim 16, wherein said inner catheter includes a release wire lumen adapted to receive said release wire and at least one notch in communication with said release wire lumen, said release wire exiting said release wire lumen through said at least one notch to engage said tie and to reenter said release wire lumen through said notch.

24. The system of claim 23, wherein said inner catheter includes a conical-shaped knob cooperating with said superior capsule assembly for retracting said superior capsule assembly through said graft.

25. The system of claim 16, wherein said inner catheter includes a release wire lumen, said release wire slidably disposed in said release wire lumen, an inferior notch and a superior notch each in communication with said release wire lumen, said release wire exiting said inferior notch, engaging said inferior tie and reentering said inferior notch, said release wire further exiting said superior notch, engaging said superior tie and reentering said superior notch.

26. The system of claim 25, wherein said superior and inferior ties each include a single suture, each said suture secured at a midpoint to said graft, formed into two loops through which said release wire is threaded and affixed at their ends to said graft.

27. The system of claim 26, wherein each said suture is secured to said graft so that each said suture resides exterior said graft.

28. The system of claim 27, wherein said release wire passes through a wall of said graft near said inferior end of said graft to engage said inferior tie and passes through said wall of said graft near said superior end of said graft to engage said superior tie.

29. The system of claim 27, wherein each said suture is passed through a wall of said graft to engage said release wire.

30. A system for repairing a lumen, said system comprising:

a graft having a tubular body, a superior end and an inferior end;

at least one attachment system, said attachment system being secured to one of said ends of said graft, and having a first configuration and a second configuration, said first configuration compressed from said second configuration; and

a delivery catheter for placing said graft within the lumen, said delivery catheter having a releasing system, said releasing system including a tie to retain said attachment system in said first configuration, said tie configured to remain permanent with said graft upon placement of said graft within the lumen and removal of said delivery catheter from the lumen.

31. The system of claim 30, wherein said releasing system further includes at least one release wire cooperating with said tie to retain said attachment system in said first configuration and to place said attachment system in said second configuration.

32. The system of claim 31, wherein said delivery catheter includes an anti-elongation wire.

33. The system of claim 32, wherein said delivery catheter includes an inner catheter, an inferior capsule catheter, an inferior capsule assembly attached to said inferior capsule catheter, and a superior capsule assembly, said inner catheter disposed within said inferior capsule assembly, said superior capsule assembly and said inferior capsule catheter;

said inferior capsule catheter, said superior capsule assembly and said inner catheter assembly each adapted to move relative to each other; and

said superior capsule assembly configured adjacent said superior end of said graft and said inferior capsule assembly configured adjacent said inferior end of said graft.

34. The system of claim 33, wherein said delivery catheter further includes a capsule jacket assembly, said capsule jacket assembly adapted to overlay and move relative to said inferior capsule catheter, said superior capsule assembly and said inner catheter.

35. The system of claim 33, wherein said inner catheter includes a control wire lumen adapted to slidably receive a control wire, said control wire having a distal end secured to said superior capsule assembly.

36. The system of claim 33, wherein said superior capsule assembly includes a flexible and tapered nose cone.

37. The system of claim 33, wherein said inner catheter includes an anti-elongation lumen adapted to receive said anti-elongation wire and at least one notch in communication with said anti-elongation lumen, said anti-elongation wire adapted to exit said anti-elongation lumen through said notch and to be affixed to an exterior of said inner catheter.

38. The system of claim 33, wherein said inner catheter includes a release wire lumen adapted to receive said release wire and at least one notch in communication with said release wire lumen, said release wire exiting said release wire lumen through said at least one notch to engage said tie and to reenter said release wire lumen through said notch.

39. The system of claim 38, wherein said inner catheter includes a conical-shaped, knob cooperating with said superior capsule assembly for retracting said superior capsule assembly through said graft.

40. The system of claim 33, wherein said inner catheter includes a release wire lumen, said release wire slidably disposed in said release wire lumen, and at least one notch in communication with said release wire lumen, said release wire exiting said notch, engaging said tie and reentering said notch.

41. The system of claim 40, wherein said tie includes a single suture, said suture secured at a midpoint to said graft, formed into two loops through which said release wire is threaded and affixed at their ends to said graft.

42. The system of claim 41, wherein said suture is secured to said graft so that said suture resides exterior said graft.

43. The system of claim 42, wherein said release wire passes through a wall of said graft to engage said tie.

44. The system of claim 42, wherein said suture is passed through a wall of said graft to engage said release wire.