Debranching visceral stent graft and methods for use

Patent metadata

Field	Value
Publication number	US-9283068-B2
Application number	US-201514625506-A
Country	US
Kind code	B2
Filing date	Feb 18, 2015
Priority date	Apr 12, 2012
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

A visceral double-barreled main body stent graft and methods for its use, the stent graft comprises, a main body stent graft having distal and proximal ends, the main body stent graft's length ranges from about 100-120 mm and diameter at the proximal end ranges from about 30-45 mm, first and second lumens defined at the main body stent graft's distal end, the first lumen's diameter ranges from about 18-20 mm, the second lumen's diameter ranges from about 16-18 mm, the first and second lumens have about the same length from about 50-70 mm, the first lumen is secured to the second lumen along a shared length, and the main body stent graft defines a tubular wall that is contiguous with the first and second lumens such that any fluid entering the main body must exit through one of the first or second lumens.

First claim

I claim:

1. A debranching stent graft comprising:
a main body stent graft with a first bifurcation defining a first leg and a second leg, wherein the main body stent graft has a distal end and a proximal end;
wherein the second leg is at least about 10 mm longer than the first leg;
a first visceral limb coupled to the first leg in a unitary configuration, wherein the first visceral limb has a second bifurcation defining a third leg and a fourth leg; and
a second visceral limb coupled to the second leg in a unitary configuration, wherein the second visceral limb has a third bifurcation defining a fifth leg and a sixth leg, wherein the first visceral limb has a length in the range from about 30 mm to about 50 mm.

2. The debranching stent graft of claim 1 , wherein the second leg is no more than about 20 mm longer than the first leg.

3. The debranching stent graft of claim 1 , wherein the first leg and the second leg each have a diameter in the range from about 14 mm to about 16 mm and wherein the first visceral limb has a diameter at a proximal end that ranges from about 14 mm to about 16 mm.

4. The debranching stent graft of claim 1 , wherein a diameter of the main body stent graft at the proximal end is about 22 mm.

5. The debranching stent graft of claim 1 , wherein a distance from the proximal end of the main body stent graft to a distal end of the first leg is in the range from about 70 mm to about 90 mm; and wherein a distance from the proximal end of the main body stent graft to a distal end of the second leg is in the range from about 80 mm to about 100 mm.

6. The debranching stent graft of claim 1 , wherein the first bifurcation occurs in the range from about 30 mm to about 40 mm from the proximal end of the main body stent graft.

7. The debranching stent graft of claim 1 , wherein each of the third leg and the fourth leg have a diameter of about 7 mm.

8. The debranching stent graft of claim 1 , further comprising:
a radiopaque band disposed at a distal end of each of the third leg, the fourth leg, the fifth leg and the sixth leg.

9. The debranching stent graft of claim 1 , wherein the third leg and the fourth leg each have a length of about 30 mm.

10. The debranching stent graft of claim 1 , further comprising:
a plurality of bi-directional anchor hooks attached to two adjacent stents at the proximal end of the main body stent graft.

11. The debranching stent graft of claim 1 , wherein the second bifurcation occurs immediately at a proximal end of the first visceral limb and wherein the third bifurcation occurs immediately at a proximal end of the second visceral limb.

12. A method for placement of a debranching stent graft, the method comprising:
introducing a guidewire into an aorta via arterial access;
loading a delivery catheter containing the debranching stent graft according to claim 1 onto the guidewire;
moving the delivery catheter along the guidewire and introducing the delivery catheter into the aorta via arterial access; and
deploying the debranching stent graft into one of the aorta or a lumen of a previously-placed stent graft within the aorta.

13. The method of claim 12 , further comprising:
introducing a second guidewire into the aorta via arterial access;
loading a second delivery catheter containing an extension graft onto the second guidewire;
moving the second delivery catheter along the second guidewire and introducing the second delivery catheter into the first or second leg and into the first or second visceral limb of the debranching stent graft via arterial access; and
deploying a proximal end of the extension graft into the first or second visceral limb containing the second guidewire.

14. A debranching stent graft comprising:
a main body stent graft with a first bifurcation defining a first leg and a second leg, wherein the main body stent graft has a distal end and a proximal end;
wherein the second leg is at least about 10 mm longer than the first leg;
a first visceral limb coupled to the first leg in a unitary configuration, wherein the first visceral limb has a second bifurcation defining a third leg and a fourth leg, wherein the third leg and the fourth leg each have a length of about 30 mm; and
a second visceral limb coupled to the second leg in a unitary configuration, wherein the second visceral limb has a third bifurcation defining a fifth leg and a sixth leg.

15. The debranching stent graft of claim 14 , wherein the second leg is no more than about 20 mm longer than the first leg.

16. The debranching stent graft of claim 14 , wherein the first leg and the second leg each have a diameter in the range from about 14 mm to about 16 mm and wherein the first visceral limb has a diameter at a proximal end that ranges from about 14 mm to about 16 mm.

17. The debranching stent graft of claim 14 , wherein a distance from the proximal end of the main body to a distal end of the first leg is in the range from about 70 mm to about 90 mm; and wherein a distance from the proximal end of the main body to a distal end of the second leg is in the range from about 80 mm to about 100 mm.

18. The debranching stent graft of claim 14 , wherein the first bifurcation occurs in the range from about 30 mm to about 40 mm from the proximal end of the main body stent graft.

19. The debranching stent graft of claim 14 , wherein each of the third leg and the fourth leg have a diameter of about 7 mm.

20. The debranching stent graft of claim 14 , further comprising:
a radiopaque band disposed at a distal end of each of the third leg, the fourth leg, the fifth leg and the sixth leg.

21. The debranching stent graft of claim 14 , further comprising:
a plurality of bi-directional anchor hooks attached to two adjacent stents at the proximal end of the main body stent graft.

22. The debranching stent graft of claim 14 , wherein the second bifurcation occurs immediately at a proximal end of the first visceral limb and wherein the third bifurcation occurs immediately at a proximal end of the second visceral limb.

23. A debranching stent graft comprising:
a main body stent graft with a first bifurcation defining a first leg and a second leg, wherein the main body stent graft has a distal end and a proximal end;
wherein the second leg is at least about 10 mm longer than the first leg;
a first visceral limb coupled to the first leg in a unitary configuration, wherein the first visceral limb has a second bifurcation defining a third leg and a fourth leg; and
a second visceral limb coupled to the second leg in a unitary configuration, wherein the second visceral limb has a third bifurcation defining a fifth leg and a sixth leg, wherein the second bifurcation occurs immediately at a proximal end of the first visceral limb and wherein the third bifurcation occurs immediately at a proximal end of the second visceral limb.

24. The debranching stent graft of claim 23 , wherein the second leg is no more than about 20 mm longer than the first leg.

25. The debranching stent graft of claim 23 , wherein the first leg and the second leg each have a diameter in the range from about 14 mm to about 16 mm and wherein the first visceral limb has a diameter at the proximal end that ranges from about 14 mm to about 16 mm.

26. The debranching stent graft of claim 23 , wherein a distance from the proximal end of the main body to a distal end of the first leg is in the range from about 7

Assignees

• Sanford Health

Inventors

• Kelly Patrick W

Classifications

• A61F2/9522

  Means for mounting a stent or stent-graft onto or into a placement instrument · CPC title

• A61F2002/072

  Encapsulated stents, e.g. wire or whole stent embedded in lining · CPC title

• A61F2002/075

  the stent being loosely attached to the graft material, e.g. by stitching · CPC title

• A61F2/07 Primary

  Stent-grafts · CPC title

• A61F2220/0025

  Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements · CPC title