APPARATUS FOR REPAIRING THE FUNCTION OF A NATIVE AORTIC VALVE

• US 20080275548A1
• Filed: 10/24/2007
• Published: 11/06/2008
• Est. Priority Date: 11/03/2006
• Status: Active Grant

• Current Assignee: Cleveland Clinic Foundation
• Original Assignee: Cleveland Clinic Foundation
• Inventors: Svensson, Lars G.
• Granted Patent: US 7,771,467 B2
• Time in Patent Office: Days
• US Class Current: 623/2.1
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• 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 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2230/0054 V-shaped

Abstract

An apparatus for repairing the function of a native aortic valve, defining a native valve annulus, of a patient includes a tubular valve support member having oppositely disposed first and second valve member ends and a valve member body located between the first and second valve member ends. The valve support member defines a longitudinal axis. A prosthetic valve has at least two prosthetic valve leaflets that are coaptable to permit the unidirectional flow of blood. The prosthetic valve is attached to the valve support member adjacent the second valve member end. At least two coronary openings in the valve member body are located longitudinally adjacent free edges of the at least two prosthetic valve leaflets. At least one of the coronary openings is located so as to be selectively radially aligned with a coronary ostium when the prosthetic valve is located substantially within the native valve annulus. At least two branch support members are provided, with each branch support member having first and second branch ends. Each first branch end is attachable to a coronary opening with the second branch end extending radially away from the valve support member and through a coronary ostium.

Claims

1. An apparatus for repairing the function of a native aortic valve of a patient, the native aortic valve defining a native valve annulus, the apparatus comprising:

a tubular valve support member having oppositely disposed first and second valve member ends and a valve member body located between the first and second valve member ends, the valve support member defining a longitudinal axis;

a prosthetic valve having at least two prosthetic valve leaflets that are coaptable to permit the unidirectional flow of blood, the prosthetic valve being attached to the valve support member adjacent the second valve member end;

at least two coronary openings in the valve member body located longitudinally adjacent free edges of the at least two prosthetic valve leaflets, at least one of the coronary openings being located so as to be selectively radially aligned with a coronary ostium when the prosthetic valve is located substantially within the native valve annulus; and

at least two branch support members, each branch support member having first and second branch ends;

each first branch end being attachable to a coronary opening with the second branch end extending radially away from the valve support member and through a coronary ostium.

2. The apparatus of claim 1, wherein at least one branch support member is formed integrally with the valve support member.

3. The apparatus of claim 1, wherein at least one branch support member is attached to the valve support member after the valve support member has been placed into a blood vessel of the patient.

4. The apparatus of claim 1, wherein at least one branch support member extends away from the valve support member in a direction perpendicular to the longitudinal axis.

5. The apparatus of claim 1, including at least one anchor member attached to the valve support member and resisting movement of the device in a first longitudinal direction within a blood vessel of the patient.

6. The apparatus of claim 5, including at least one anchor member attached to the valve support member and resisting movement of the device in a second longitudinal direction, opposite the first longitudinal direction, within the blood vessel of the patient.

7. The apparatus of claim 1, including a cushioning cuff attached to at least one of the first and second valve member ends and the second branch end.

8. The apparatus of claim 1, wherein the native heart valve is excised before the valve support member is placed within a blood vessel of the patient.

9. The apparatus of claim 1, wherein the native valve includes at least two native valve leaflets, and the native valve leaflets are compressed against an inner wall of a blood vessel of the patient by the valve support member.

10. The apparatus of claim 1, wherein the valve support member is at least partially lined with a valve support member graft.

11. The apparatus of claim 1, wherein at least one branch support member is at least partially lined with a branch support member graft.