Endovascular aortic graft

• US 6,409,756 B1
• Filed: 01/24/2000
• Issued: 06/25/2002
• Est. Priority Date: 01/24/2000
• Status: Expired due to Fees

• Current Assignee: Edward G. Murphy
• Original Assignee: Edward G. Murphy
• Inventors: Murphy, Edward G.
• Primary Examiner(s): McDermott, Corrine
• Assistant Examiner(s): Phan, Hieu
• Application Number:
  US09/489,401
• Time in Patent Office: 883 Days
• Field of Search: 606/198, 606/195, 623/1-3-, 623/1.35
• US Class Current: 623/1.35
• 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 2002/061 provided with means for allowing access to secondary lumens
• CPC Class Codes: A61F 2002/067 modular
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• 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 arterial interluminal prosthesis for repairing an aortic aneurysm of a patient comprising. The prosthesis includes a main body having an upper end with a upper aperture for being located proximate to renal arteries of the patient and a lower end having two lower apertures for being located in the arortic artery proximate iliac arteries of the patient. The prosthesis also includes a first leg that is separate from the main body that is inserted into one of the two lower apertures of the main body to extend therefrom into one of the iliac arteries and a second leg separate from the main body that is inserted into the other of the two lower apertures of the main body to extend therefrom into the other of the iliac arteries.

Claims

1. An arterial interluminal prosthesis for repairing an aortic aneurysm of a patient comprising:

a main body having a first end with an upper aperture for being located proximate to renal arteries of the patient and a second end having two lower apertures for being located in the aortic artery proximate iliac arteries of the patient;

a first leg separate from the main body for inserting into one of the two lower apertures of the main body to extend therefrom into one of the iliac arteries;

a second leg separate from the main body for inserting into the other of the two lower apertures of the main body to extend therefrom into the other of the iliac arteries; and

a first stent located entirely within the main body proximate the first end and a second stent coupled at the first end of the main body to extend therefrom across the renal arteries of the patient.

2. The arterial interluminal prosthesis of claim 1, further comprising at least one outer stent coupled to an outside surface of the main body proximate the second end of the main body such that the first sent supports a first portion of the main body exclusively from the inner surface of the main body and the outer stent supports a second portion of the main body exclusively from the outer surface of the main body.

3. By The arterial interluminal prosthesis of claim 2, wherein the outer stent is coupled to the first stent.

4. The arterial interluminal prosthesis of claim 2, comprising a plurality of stents coupled to the outer surface of the main body, wherein at least one of such stents is located proximate the second end of the main body and the at least one other of such stents is coupled to the first stent such that the second portion of the main body is greater than the first portion.

5. The arterial interluminal prosthesis of claim 1, further comprising wall stents in each of the first leg and the second leg, wherein the wall stents are substantially the same length as the corresponding legs.

6. The arterial interluminal prosthesis of claim 5, wherein the wall stents are longer than the corresponding legs.

7. The arterial interluminal prosthesis of claim 1, wherein the main body further includes two extensions at the second end for extending towards the iliac arteries.

8. The arterial interluminal prosthesis of claims 7, wherein the two extensions have first diameters and the first and second legs have second diameters larger than the first diameters to substantially seal the extensions.

9. The arterial interluminal prosthesis of claim 8, wherein the two extensions further include stents coupled within the extensions.

10. A method of inserting an arterial interluminal prosthesis into an aortic artery and iliac arteries of a patient, the method comprising the steps of:

providing a main body having a first end with an aperture and a second end having two apertures;

coupling a first stent to the first end of the main body such that a lower end of the stent is restricted in diameter and the opposing end is unrestricted in diameter;

inserting the main body through a first iliac artery into the aortic artery such that the first end is located proximate to renal arteries of the patient and the first stent covers the renal arteries of the patient and the second end is located within the aortic artery and proximate the iliac arteries of the patient;

providing a first leg separate from the main body;

inserting the first leg through the first iliac artery into one of the two apertures of the main body to extend therefrom and into the first iliac artery;

providing a second leg separate from the main body;

inserting the second leg through a second iliac artery and into the other of the two apertures of the main body to extend therefrom into the second iliac artery.

11. The method of inserting an arterial interluminal prosthesis into an aortic artery and iliac arteries of a patient of claim 10, further comprising the steps of:

providing wall stents in the first and second legs that are longer than the first and second legs;

extending the wall stents into the main body beyond first ends of the first and second legs such that the wall stents hold the first and second legs to the main body;

extending the wall stents beyond second ends of the first and second legs such that the wall stents hold the first and second legs to the first and second iliac arteries.

12. An arterial interluminal prosthesis for repairing an aortic aneurysm of a patient comprising:

a main body being located within an aortic artery of a patient having a first end with an upper aperture for being located proximate to renal arteries of the patient and a second end having two lower apertures for being located in the aortic artery proximate iliac arteries of the patient;

a first stent located entirely within the main body proximate the first end and a second stent coupled at the first end of the main body to extend therefrom across the renal arteries of the patient.

13. The arterial interluminal prosthesis of claim 12, further comprising at least one outer stent coupled to an outside surface of the main body proximate the second end of the main body such that the first sent supports a first portion of the main body exclusively from the inner surface of the main body and the outer stent supports a second portion of the main body exclusively from the outer surface of the main body.

14. The arterial interluminal prosthesis of claim 13, comprising a plurality of stents coupled to the outer surface of the main body, wherein at least one of such stents is located proximate the second end of the main body and the at least one other of such stents is coupled to the first stent such that the second portion that is supported exclusively from the outer surface of the main body is greater than the first portion.

15. The arterial interluminal prosthesis of claim 12, wherein the second stent is a Z-stent with a lower end that is restricted in diameter by the main body and an upper end that is unrestricted in diameter such that it can expand to secure the prosthesis to the aortic artery.

16. An arterial interluminal prosthesis for repairing an aortic aneurysm of a patient comprising:

a main body having a first end with an upper aperture for being located proximate to renal arteries of the patient and a second end having two lower apertures for being located in the aortic artery proximate iliac arteries of the patient;

a first leg separate from the main body for inserting into one of the two lower apertures of the main body to extend therefrom into one of the iliac arteries;

a second leg separate from the main body for inserting into the other of the two lower apertures of the main body to extend therefrom into the other of the iliac arteries;

a first stent located entirely within the main body proximate the first end and a second stent coupled at the first end of the main body to extend therefrom across the renal arteries of the patient; and

a plurality of stents coupled to the outer surface of the main body, wherein at least one of such stents is located proximate the second end of the main body and the at least one other of such stents is coupled to the first stent.

17. An arterial interluminal prosthesis for repairing an aortic aneurysm of a patient comprising:

a main body having a first end with an upper aperture for being located proximate to renal arteries of the patient and a second end having two lower apertures for being located in the aortic artery proximate iliac arteries of the patient;

a first leg separate from the main body for inserting into one of the two lower apertures of the main body to extend therefrom into one of the iliac arteries;

a second leg separate from the main body for inserting into the other of the two lower apertures of the main body to extend therefrom into the other of the iliac arteries; and

a first stent located entirely within t he main body proximate the first end and a plurality of stents coupled to the outer surface of the main body, wherein at least one of such stents is located proximate the second end of the main body and the at least one other of such stents is coupled to the first stent.