Pararenal stent graft

Patent metadata

Field	Value
Publication number	US-10159558-B2
Application number	US-201414170073-A
Country	US
Kind code	B2
Filing date	Jan 31, 2014
Priority date	Mar 26, 2009
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A stent graft and a stent graft system having a scallop at the proximal end of the stent graft and extending below the proximal edge, the scallop having two substantially longitudinally extending opposing side edges and a substantially laterally extending bottom edge parallel to the proximal edge of the stent graft and extending between the two substantially longitudinally extending opposing side edges to define a scallop parameter. The stent graft and stent graft system include side arms extending externally from the stent graft at an acute angle to the body of the stent graft with an open end of the side arms extending toward the proximal end of the stent graft.

First claim

The invention claimed is:

1. A stent graft comprising:
an elongate tubular body of a biocompatible graft material having a fluid inflow end, a fluid outflow end wherein the fluid outflow end is distal to the fluid inflow end, an edge at the fluid inflow end, a sidewall, an external surface, a longitudinal axis, a length from the inflow end to the outflow end, and a lumen between the fluid inflow and outflow ends;
a series of stents attached to the graft material along the length of the elongate tubular body;
an anchor stent coupled to the graft material adjacent the fluid inflow end of the elongate tubular body and extending at least partially beyond the fluid inflow end of the elongate tubular body;
a scallop at the fluid inflow end of the elongate tubular body and extending from the edge for a length along the elongate tubular graft distally toward the outflow end, the scallop having two substantially longitudinally extending opposing side edges and a substantially laterally extending edge parallel to the edge of the elongate tubular body and extending between the two substantially longitudinally extending opposing side edges to define a scallop perimeter;
a reinforcement extending at least partially along the perimeter of the scallop;
a sealing stent coupled to the graft material and extending from adjacent the edge and distally toward the outflow end;
at least two openings in the sidewall between the fluid inflow end and the fluid outflow end and positioned distally of the scallop;
a side arm extending at an acute angle to the longitudinal axis from each of the openings, wherein each side arm has an inner portion extending into the lumen of the elongate tubular body and an outer portion extending external to the elongate tubular body, wherein the inner portion of each side arm has an end opening that extends distally toward the outflow end and the outer portion of each side arm has an end opening that extends proximally toward the inflow end.

2. The stent graft of claim 1 , wherein each of the side arms includes a reinforcing ring about one or both of the at least two openings.

3. The stent graft of claim 1 , wherein each of the side arms includes a reinforcing ring about the end opening.

4. The stent graft of claim 1 , wherein each of the side arms comprises a support stent attached to the respective side arm.

5. The stent graft of claim 1 , wherein a first stent of the series of stents is directly proximal of the side arms and a second stent of the series of stents is directly distal of the side arms, wherein each side arm is disposed in an unstented region between the first stent of the series of stents and the second stent of the series of stents.

6. The stent graft of claim 5 , wherein a distance between the first and second stents is greater than a distance between at least two other adjacent stents.

7. The stent graft of claim 1 , wherein the side arms are each configured to receive side branch stent grafts.

8. The stent graft of claim 1 , wherein the seal stent is disposed within the lumen of the elongate tubular body.

9. The stent graft of claim 1 , wherein at least one of the side arms comprises a marker.

10. The stent graft of claim 1 , wherein the two substantially longitudinally extending opposing side edges each form an obtuse angle relative to the substantially laterally extending edge.

11. The stent graft of claim 10 , wherein each of the side arms is configured to receive fluid from its first open end to its second open end in a direction toward the fluid inflow end.

12. The stent graft of claim 1 , wherein each of the side arms is configured to receive fluid from its first open end to its second open end in a direction toward the fluid inflow end.

13. A stent graft system comprising:
an elongate tubular body of a biocompatible graft material having a fluid inflow end, a fluid outflow end distal to the fluid inflow end, an edge at the fluid inflow end, a sidewall, an external surface, a longitudinal axis, a length from the inflow end to the outflow end, and a lumen between the fluid inflow and fluid outflow ends;
a series of stents attached to the graft material along the length of the elongate tubular body;
an anchor stent coupled to the graft material adjacent the fluid inflow end of the elongate tubular body and extending at least partially beyond the fluid inflow end of the elongate tubular body;
a scallop at the fluid inflow end of the elongate tubular body and extending from the edge for a length along the elongate tubular graft distally toward the outflow end, the scallop having two substantially longitudinally extending opposing side edges and a substantially laterally extending edge parallel to the edge of the elongate tubular body and extending between the two substantially longitudinally extending opposing side edges to define a scallop perimeter;
a reinforcement extending at least partially along the perimeter of the scallop;
a seal stent coupled to the graft material and disposed immediately distal to the edge;
at least two openings in the sidewall between the fluid inflow end and the fluid outflow end and positioned distally of the scallop;
a side arm extending at an acute angle to the longitudinal axis from each of the openings, the side arms each having a first open end disposed with the lumen of the elongate tubular body and a second open end disposed external to the elongate tubular body, each first open end extending distally toward the fluid out flow end and each second open end extending proximally toward the fluid inflow end of the elongate tubular body; and
a first side branch receivable within one of the side arms and a second side branch receivable in another of the side arms, the first and second side branches each having a first end receivable within one of the side arms and a second end having an opening extending from the side arm and toward the fluid inflow end.

14. The stent graft system of claim 13 , wherein each of the side arms includes a reinforcing ring about one or both of the first and second open ends.

15. The stent graft system of claim 13 , further comprising a reinforcing ring about the second open end of each of the side arms.

16. The stent graft system of claim 13 , wherein each of the side arms comprises a support stent attached to the respective side arm.

17. The stent graft system of claim 13 , wherein a first stent of the series of stents is directly proximal to the side arms and a second stent of the series of stents is directly distal to the side arms, wherein each side arm is disposed in an unstented region between the first stent of the series of stents and the second stent of the series of stents.

18. The stent graft system of claim 17 , wherein a distance between the first and second stents is greater than a distance between at least two other adjacent stents.

19. The stent graft system of claim 13 , wherein the sealing stent is disposed within the lumen of the elongate tubular body.

20. The stent graft system of claim 13 , wherein one or both of the side arms comprises a marker.

21. The stent graft system of claim 13 , wherein the two substantially longitudinally extending opposing side edges each form an obtuse angle relative to the substantially laterally extending edge.

22. The stent graft system of claim 13 , wherein the fluid outflow end of the stent graft comprises two legs extending from the fluid outflow end.

23. A stent graft system comprising:
an elongate tubular

Assignees

• Cook Medical Technologies Llc

Inventors

• Chuter Timothy A M
• Hartley David Ernest
• Roeder Blayne A

Classifications

• A61F2/89

  the wire-like elements comprising two or more adjacent rings flexibly connected by separate members · CPC title

• A61F2002/065

  Y-shaped blood vessels · CPC title

• A61F2002/075

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

• A61F2002/061

  provided with means for allowing access to secondary lumens · CPC title

• A61F2230/0067

  conical · CPC title