Bifurcated vascular graft deployment device

• US 6,090,128 A
• Filed: 02/20/1997
• Issued: 07/18/2000
• Est. Priority Date: 02/20/1997
• Status: Expired due to Term

• Current Assignee: Endologix
• Original Assignee: Endologix
• Inventors: Douglas, Myles S.
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): TRINH, HOA B
• Application Number:
  US08/802,478
• Time in Patent Office: 1,244 Days
• Field of Search: 606/195, 606/198, 606/191, 606/194, 606/200, 623/1, 623/12, 623/11
• US Class Current: 623/1.11
• 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 2/954 for placing stents or stent-grafts in a bifurcation
• CPC Class Codes: A61F 2002/065 Y-shaped blood vessels
• CPC Class Codes: A61F 2002/072 Encapsulated stents, e.g. wire or whole stent embedded in lining
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2230/0067 conical

Abstract

A structurally supported bifurcated vascular graft is described having a hollow cylindrical body graft with a top end and bottom end and two hollow cylindrical limb grafts which are attached to the hollow cylindrical body graft near the top end of the body graft. One or more structural supports or stents are attached to either the interior or exterior of the body graft and limb grafts. Further, an apparatus and method for delivering a one-piece bifurcated vascular graft is also described which includes first and second hollow limb tubes for containing the limbs of a bifurcated graft, a third hollow body tube for containing the body of a graft, and a hollow delivery tube capable of encompassing the limb tubes and graft body tube.

Claims

1. A deployment apparatus for deploying a bifurcated graft having a main graft body which bifurcates at a junction into first and second limbs, the deployment apparatus comprising:

a first tube for constraining and surrounding the first limb;

a second tube for constraining and surrounding the second limb;

a third tube for constraining and surrounding the main graft body, wherein at least one of said first, second and third tubes is adapted to constrain and surround the bifurcated graft in the area of the junction of the main graft body and the first and second limbs; and

an outermost tube for surrounding the first, second and third tubes.

2. The deployment apparatus of claim 1 further comprising a metal tube for containing a guide wire wherein the metal tube is insertable throughout an entire length of the apparatus.

3. The deployment apparatus of claim 1 further comprising a first homeostatic valve connected to said first tube.

4. The apparatus of claim 3 further comprising a second homeostatic valve connected to said outermost tube.

5. The apparatus of claim 1 further comprising a tapered tip capable of fitting onto an open end of said third tube.

6. The apparatus of claim 1 wherein said second tube comprises a first open end, a second closed tapered end and a guide wire attached to said tapered end.

7. The apparatus of claim 6 wherein said second tube is shorter in length than said first tube.

8. The apparatus of claim 1 wherein said first tube has a first diameter and said second tube has a second diameter and the first and second diameters are approximately equal.

17. A deployment apparatus as in claim 1, wherein the third tube is positioned distally of the first and second tubes.

18. A deployment apparatus as in claim 17, wherein the second tube has an open distal end for receiving the second limb of the graft and a closed proximal end.

19. A deployment apparatus as in claim 18, further comprising a wire attached to the closed proximal end so that proximal retraction of the wire will retract the second tube proximally with respect to the third tube to release the second limb.

20. A deployment apparatus as in claim 1, wherein the third tube has an open proximal end so that distal advancement of the third tube releases the main graft body.

21. A deployment apparatus as in claim 20, further comprising a tapered tip on the distal end of the third tube.

9. A deployment apparatus for deploying a bifurcated graft having a main graft body which bifurcates at a junction into first and second limbs, the deployment apparatus comprising:

a first tube for constraining and surrounding the first limb;

a second tube for constraining and surrounding the second limb; and

an outermost tube for surrounding the first and second tubes and the main graft body wherein at least one of said first, second and outermost tubes is adapted to constrain and surround the bifurcated graft in the area of the junction of the main graft body and the first and second limbs.

10. The deployment apparatus of claim 9 further comprising a metal tube for containing a guide wire wherein the metal tube is insertable throughout an entire length of the apparatus.

11. The deployment apparatus of claim 9 further comprising a first homeostatic valve connected to said first tube.

12. The apparatus of claim 11 further comprising a second homeostatic valve connected to said outermost tube.

13. The apparatus of claim 9 further comprising a tapered tip capable of fitting onto an open end of said outermost tube.

14. The apparatus of claim 9 wherein said second tube comprises a first open end, a second closed tapered end and a guide wire attached to said tapered end.

15. The apparatus of claim 14 wherein said second tube is shorter in length than said first tube.

16. The apparatus of claim 9 wherein said first tube has a first diameter and said second tube has a second diameter and the first and second diameters are approximately equal.

22. A deployment apparatus as in claim 9, wherein the outermost tube is positioned distally of the first and second tubes.

23. A deployment apparatus as in claim 22, wherein the second tube has an open distal end for receiving the second limb of the graft and a closed proximal end.

24. A deployment apparatus as in claim 23, further comprising a wire attached to the closed proximal end so that proximal retraction of the wire will retract the second tube proximally with respect to the outermost tube to release the second limb.

25. A deployment apparatus as in claim 9, wherein the outermost tube has an open proximal end so that distal advancement of the outermost tube releases the main graft body.

26. A deployment apparatus as in claim 25, further comprising a tapered tip on the distal end of the outermost tube.