Anchoring system for implantable heart valve prostheses

• US 20070005129A1
• Filed: 09/05/2006
• Published: 01/04/2007
• Est. Priority Date: 02/28/2000
• Status: Active Grant

• Current Assignee: JenaValve Technology, Inc.
• Original Assignee: JenaValve Technology, Inc.
• Inventors: Guyenot, Volker, Risse, Stefan, Dorrer, Peggy, Damm, Christoph, Mohaupt, Matthias, Lang, Klaus, Weber, Carsten, Harnisch, Gerd, Ferrari, Markus, Figulia, Hans-Reiner
• Granted Patent: US 7,896,913 B2
• Time in Patent Office: Days
• US Class Current: 623/1.360
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• 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

Abstract

The invention relates to an anchoring system for heart valve prostheses which can be implanted by introduction via the aorta without any major surgical operation. With the heart valve prosthesis according to the invention it shall be achieved that this can be safely and quickly guided through the aorta toward the heart, and can be fixed there. With this, hook-shaped elements are secured to the commissures of the heart valve prosthesis the hooks of which are guided in an outward direction through the heart valve prosthesis material.

Claims

1. An anchoring system for an implantable heart valve prosthesis, the anchoring system including hook-shaped elements secured to the commissures of the heart valve prosthesis, the hook-shaped elements being guided in an outward direction through material from which the heart valve prosthesis is constructed, wherein said hook-shaped elements have a deployed orientation in which said hook-shaped elements have an effective height sufficient for anchoring in the aortic vessel wall, said hook-shaped elements protruding from said heart valve prosthesis when in said deployed condition, and further wherein said heart valve prosthesis includes at least one ridge, at least some of said hook-shaped elements being pushed through said heart valve prosthesis and being supported inside said heart valve prosthesis by said at least one ridge and further wherein the prosthesis includes an outer ring an additional hook-shaped elements, the additional hook-shaped elements being secured to the outer ring.

2. An anchoring system according to claim 1 wherein said hook-shaped elements are sewn on to said heart valve prosthesis.

3. An anchoring system according to claim 2 wherein said plurality of hook-shaped elements are arranged on said ridge, and said ridge is secured to one commissure.

4. An anchoring system according to claim 3 wherein at least two said hook-shaped elements are located on said one ridge.

5. An anchoring system according to claim 3 including a plurality of said ridges, said ridges being aligned in the longitudinal direction of the aorta.

6. An anchoring system according to claim 3 including a plurality of said ridges, said ridges being oriented in a helical orientation.

7. An anchoring system according to claim 3 including a plurality of said ridges, said ridges being at least as long as said commissures.

8. An anchoring system according to claim 1 wherein at least said hook-shaped elements are made of a memory metal.

9. An anchoring system according to claim 1 wherein said hook-shaped elements have a deployed orientation in which said hook-shaped elements have an effective height of at least 2 mm, said hook-shaped elements protruding from said heart valve prosthesis when in said deployed condition.

10. An anchoring system according to claim 1 wherein said hook-shaped elements are somewhat pin-shaped and are provided with barbs.

11. An anchoring system according to claim 1 wherein said hook-shaped elements include hook portions, said hook portions being bent into various directions.

12. An anchoring system according to claim 1 wherein said hook-shaped elements are sewn on to said heart valve prosthesis.

13. An anchoring system according to claim 1 wherein said heart valve prosthesis includes at least one ridge, said hook-shaped elements being pushed through said heart valve prosthesis and being supported inside said heart valve prosthesis by said at least one ridge.

14. An anchoring system according to claim 4 including a plurality of said ridges, said ridges being aligned in the longitudinal direction of the aorta.

15. An anchoring system according to claim 4 including a plurality of said ridges, said ridges being oriented in a helical orientation.

16. An anchoring system according to claim 4 including a plurality of said ridges, said ridges being at least as long as said commissures.