Method of deploying bifurcated vascular graft

• US 6,156,063 A
• Filed: 05/28/1998
• Issued: 12/05/2000
• Est. Priority Date: 02/20/1997
• Status: Expired due to Term

• Current Assignee: Endologix
• Original Assignee: Endologix
• Inventors: Douglas, Myles S.
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): GHERBI, SUZETTE JAIME J
• Application Number:
  US09/086,247
• Time in Patent Office: 922 Days
• Field of Search: 623/1, 623/12, 623/1.12, 623/1.13, 623/1.11, 623/1.23, 604/284, 606/194, 606/195
• US Class Current: 623/1.12
• 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 method for intraluminal delivery of a bifurcated vascular graft, having a main graft body which bifurcates at a junction into first and second limbs, within a patient comprising the steps of:

a. loading the first limb of the graft into a first tube, the second limb of the graft into a second tube, and the main graft body into a third tube, 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;

b. inserting the first, second and third tubes endoluminally within the patient;

c. positioning the first, second and third tubes within the patient;

d. deploying the first limb by removing the first tube;

e. deploying the second limb by removing the second tube; and

f. deploying the main graft body by removing the third tube.

2. The method of claim 1, further comprising the steps of:

a. inserting the first, second and third tubes into a main tube; and

b. removing the main tube to uncover the first, second and third tubes.

3. A method for intraluminal delivery of a bifurcated vascular graft as in claim 1, wherein the inserting step comprises inserting the bifurcated vascular graft into the femoral artery.

4. A method for intraluminal delivery of a bifurcated vascular graft as in claim 1, wherein the positioning step comprises positioning the bifurcated vascular graft at the bifurcation of the abdominal aorta and the left and right iliac arteries.

5. A method for intraluminal delivery of a bifurcated vascular graft, having a main graft body which bifurcates at a junction into first and second limbs within a patient, comprising the steps of:

a. providing a bifurcated vascular catheter carrying a bifurcated vascular graft with the first limb of the graft in a first tube, the second limb of the graft in a second tube and the main graft body in a third tube, wherein at least one of the first, second, and third tubes is adapted to constrain and surround the bifurcated graft in the area of the junction;

b. inserting the catheter intraluminally within the patient;

c. positioning the first tube and the second tube within the patient'"'"'s right and left iliac arteries, and the third tube within the patient'"'"'s aorta;

d. deploying the first limb by removing the first tube;

e. deploying the second limb by removing the second tube; and

f. deploying the main graft body by removing the third tube.

6. A method for intraluminal delivery of a bifurcated vascular graft as in claim 5 wherein the inserting step comprises inserting the catheter into the femoral artery.