Fenestrated intraluminal stent system

• US 20050222669A1
• Filed: 02/22/2005
• Published: 10/06/2005
• Est. Priority Date: 03/31/2004
• Status: Active Grant

• Current Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Original Assignee: Cook Medical Incorporated (Cook Group Incorporated)
• Inventors: Purdy, James D.
• Granted Patent: US 8,048,140 B2
• Time in Patent Office: Days
• US Class Current: 623/1.130
• 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 2/95 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 2/954 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 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• 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 2002/9511 the retaining means being filaments or wires
• 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 2230/005 Rosette-shaped, e.g. star-shaped
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/0067 conical

Abstract

An intraluminal prosthesis is provided for strengthening a main lumen and a branch lumen that branches from the main lumen. The intraluminal prosthesis can comprise two tubular grafts. The first tubular graft can have a flexible body with a fenestration. The second tubular graft can have a flexible body that is configured for intraluminal coupling to the fenestration of the first tubular graft. The flexible body of the second tubular graft can have an outer dimension that is about equal to an inner dimension of the fenestration of the first tubular graft. The second tubular graft can also have a terminal stent that curves outwardly from a proximal end of the flexible body of the second tubular graft, whereby the terminal stent acts to couple the second tubular graft to the first tubular graft.

Claims

1. An intraluminal prosthesis for strengthening a main lumen and a branch lumen in direct fluid communication with the main lumen, the prosthesis comprising:

a first graft comprising a first tubular flexible body including a wall with a fenestration; and

a second graft comprising a second tubular flexible body, dimensioned to be received in the fenestration in the first graft wall, and a self-expanding stent including a terminal loop coupled to a longitudinal end of the second flexible body, the self-expanding stent, when in an expanded state, having a curvature such that the terminal loop can contact the first graft wall interior.

2. The intraluminal prosthesis of claim 1 wherein the first graft further comprises a plurality of self expanding stents that are coupled along the length of the first tubular flexible body.

3. The intraluminal prosthesis of claim 1 wherein the second graft further comprises a plurality of self expanding stents that are coupled along the length of the second tubular flexible body.

4. The intraluminal prosthesis of claim 1 wherein the fenestration has an inner dimension, and the second graft has an outer dimension that, when expanded, is substantially equal to the inner dimension of the fenestration in the first tubular flexible body.

5. The intraluminal prosthesis of claim 1 wherein the first graft is configured to be positioned inside a main lumen, and then second graft is configured to be positioned substantially inside a branch lumen connected to the main lumen.

6. The intraluminal prosthesis of claim 1 wherein the first graft further comprises a terminal self-expanding stent mounted to a proximal end of the first tubular flexible body, the terminal stent extending beyond said proximal end.

7. The intraluminal prosthesis of claim 6 wherein the terminal stent includes attachment barbs.

8. The intraluminal prosthesis of claim 1 wherein outer portions of the self expanding stent of the second graft extend substantially radially outwardly from the second tubular flexible body.

9. The intraluminal prosthesis of claim 9 wherein the outer portions of the self expanding stent of the second graft includes attachment barbs.

10. A intraluminal prosthesis for strengthening a branch lumen, the prosthesis comprising:

a flexible body comprising a graft material having a tubular interior passage, a plurality of self expanding stents coupled to the flexible body, a first terminal stent coupled to and extending substantially radially outwardly from a proximal end of the flexible body, and a second terminal stent coupled to a distal end of the tubular interior passage, the second terminal stent including attachment barbs.

11. The intraluminal prosthesis of claim 10 wherein the first terminal stent includes attachment barbs.

12. The intraluminal prosthesis of claim 10, wherein the flexible body is a body portion of a renal prosthetic device.

13. The intraluminal prosthesis of claim 10, wherein the flexible body is a body portion of a superior mesenteric prosthetic device.

14. The intraluminal prosthesis of claim 10, wherein the flexible body is a body portion of a celiac prosthetic module.

15. The intraluminal prosthesis of claim 10, wherein the flexible body is a body portion of a left common carotid prosthetic device.

16. The intraluminal prosthesis of claim 10, wherein the flexible body is a body portion of a left subclavian prosthetic device.

17. The intraluminal prosthesis of claim 10, wherein the flexible body is a body portion of an innominate prosthetic device.

18. The intraluminal prosthesis of claim 10, wherein the flexible body is a body portion of a hypogastric prosthetic device.

19. An intraluminal prosthesis for strengthening a main lumen and a branch lumen in direct fluid communication with the main lumen, the prosthesis comprising:

a first graft comprising a first tubular flexible body including a wall with a fenestration, a plurality of self expanding stents coupled along the wall, and a terminal stent mounted to an end of the wall and extending longitudinally therefrom for contact with a main lumen; and

a second graft comprising a second tubular flexible body, dimensioned to be received in the fenestration in the first graft wall, and a self-expanding stent including a terminal loop coupled to a longitudinal end of the second flexible body, the self-expanding stent, when in an expanded state, having a curvature such that the terminal loop can contact the first graft wall interior.

20. The intraluminal prosthesis of claim 19, wherein the second graft further comprises a second terminal stent coupled to a distal end of the tubular interior passage, the second terminal stent including attachment barbs.