Prosthesis With Guide Lumen

• US 20070233220A1
• Filed: 03/30/2006
• Published: 10/04/2007
• Est. Priority Date: 03/30/2006
• Status: Active Grant

• Current Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Original Assignee: Medtronic Vascular, Inc. (Medtronic Plc)
• Inventors: Greenan, Trevor
• Granted Patent: US 9,757,260 B2
• Time in Patent Office: Days
• US Class Current: 623/1.110
• CPC Class Codes: A61F 2/07 Stent-grafts
• 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 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0078 hyperboloidal

Abstract

Tubular prosthesis for deployment in a human body passageway comprises a tubular member adapted for placement in a passageway in a human body and a tube. The tubular member has a tubular wall, first and second end openings, and a side opening formed in the tubular wall between the first and second end openings. The tube has a first end portion and a second end portion. The first end portion of the tube is disposed in the tubular member and has an opening arranged relative to the side opening such that an elongated element (e.g., a guidewire) can be passed through the tube and out from the side opening in the tubular wall where it can enter a branch passageway. The tube can be releasably secured to the tubular member in such as manner that it can be detached from the tubular member and withdrawn after the elongated element is passed through the side opening and placed in a desired position.

Claims

1. Tubular prosthesis for deployment in a human body passageway comprising:

a tubular member adapted for placement in a passageway in a human body, said tubular member having a tubular wall, first and second end openings, and a side opening formed in said tubular wall between said first and second end openings; and

a tube having a first end portion and a second end portion, said first end portion being disposed in said tubular member and extending toward said side opening, and said tube being secured to said tubular member, whereby an elongated element can be passed through said tube and out from said side opening in said tubular wall and said tube detached from said tubular member so that it can be moved relative to and withdrawn over the elongated element.

2. The tubular prosthesis of claim 1, wherein said tube is releasably secured to said tubular member.

3. The tubular prosthesis of claim 1, wherein said tube extends out from said tubular prosthesis second end.

4. The tubular prosthesis of claim 3, further including a second side opening formed in said tubular member between said first and second end openings and a second tube having a first end portion and a second end portion, said second tube first end portion being disposed in said tubular member and extending toward said second side opening, and said second tube being secured to said tubular member, whereby a second elongated element can be passed through said second tube and out from said second side opening in said tubular wall and said second tube detached from said tubular member so that it can be moved relative to and withdrawn over the second elongated element.

5. The tubular prosthesis claim 2, further including a second side opening formed in said tubular member between said first and second end openings and a second tube having a first end portion and a second end portion, said second tube first end portion being disposed in said tubular member and extending toward said second side opening, and said second tube being releasably secured to said tubular member, whereby a second elongated element can be passed through said second tube and out from said second side opening in said tubular wall and said second tube detached from said tubular member so that it can be moved relative to and withdrawn over the second elongated element.

6. The tubular prosthesis of claim 5, wherein one of said tubes has an end in the vicinity of one of said side openings and the other of said tubes has an end in the vicinity of the other of said side openings.

7. The tubular prosthesis of claim 6, wherein one of said tube ends overlaps one of said side openings and the other of said tube ends overlaps the other of said side openings.

8. The tubular prosthesis of claim 1, wherein said tube first end portion has an end in the vicinity of said side opening.

9. The tubular prosthesis of claim 8, wherein said tube end overlaps said side opening.

10. The tubular prosthesis of claim 1, where said tubular member is a tubular graft.

11. The tubular prosthesis of claim 1, wherein said tubular member is a stent-graft.

12. A tubular prosthesis delivery system comprising a delivery catheter having a proximal end portion and a distal end portion, a tubular prosthesis comprising a tubular wall, first and second end openings, and a side opening formed in said tubular wall between said first and second end openings, said prosthesis being positioned in said distal end portion of said delivery catheter, and a tube having a first end portion and a second end portion, said tube first end portion being disposed in said tubular prosthesis and having an end opening in the vicinity of said side opening and said tube second end portion extending to said proximal end portion of said delivery catheter.

13. The delivery system of claim 12, including a pusher rod slidably disposed in said catheter and having an end portion facing said tubular prosthesis.

14. The delivery system of claim 13, wherein said tube is releasably secured to said tubular prosthesis.

15. The delivery system of claim 12, wherein said tube is releasably secured to said tubular prosthesis.

16. The delivery system of claim 12, wherein said delivery catheter comprises a sheath and a pusher rod slidably disposed therein, said pusher rod having a lumen formed therein and extending in an axial direction thereof, and said prosthesis tube extending through said pusher rod lumen.

17. The delivery system of claim 16, wherein a guidewire extends through at least a portion of said lumen and said prosthesis tube.

18. The delivery system of claim 12, wherein said prosthesis has a radially collapsed state and a radially expanded state, said tubular prosthesis being in said collapsed state.

19. A method of delivering a guide to a branch lumen comprising:

delivering a tubular prosthesis, which includes a side opening, an inner wall surface and a tube extending along a portion of said inner wall surface and toward said side opening, through a first passageway in a human body to a site where a second passageway branches from said first passageway;

advancing a guide element through said tube, side opening and into said second passageway; and

removing the tube from the tubular prosthesis.

20. The method of claim 19, wherein the prosthesis is positioned so that said side opening is in the vicinity of said second passageway.

21. The method of claim 19, wherein said guide element is retracted and the prosthesis repositioned before advancing the guide element into said second passageway.

22. The method of claim 19, wherein delivering the tubular prosthesis comprises delivering a stent-graft.

23. The method of claim 22, wherein the wherein advancing the guide element comprises advancing a guidewire.

24. The method of claim 22, wherein the stent-graft is delivered through a vessel.

25. The method of claim 23, wherein the stent-graft is delivered through the aorta.

26. The method of claim 25, wherein the stent-graft is delivered to bypass an abdominal aortic aneurysm.

27. The method of claim 26, wherein the guide element is advanced to enter a renal artery from the aorta.

28. The method of claim 19, wherein the tubular prosthesis is a self-expanding stent-graft that is in a radially collapsed state when being delivered to the vicinity if the second passageway and is partially deployed to align the side opening with the second passageway.

29. The method of claim 19, wherein the prosthesis includes a second side opening and a second tube extending along a portion of said inner wall surface and toward said second side opening and a second guide element is advanced in said second tube to pass into a third passageway that branches from said first passageway.

30. The method of claim 29, wherein delivering the tubular prosthesis comprises delivering a stent-graft.

31. The method of claim 30, wherein advancing the guide element comprises advancing a guidewire.

32. The method of claim 31, wherein the stent-graft is delivered through a vessel.

33. The method of claim 32, wherein the stent-graft is delivered through the aorta.

34. The method of claim 33, wherein the stent-graft is delivered to bypass an abdominal aortic aneurysm.

35. The method of claim 34, wherein the guide element is advanced enter a renal artery from the aorta.