Intra-annular mounting frame for aortic valve repair

• US 8,163,011 B2
• Filed: 05/03/2007
• Issued: 04/24/2012
• Est. Priority Date: 10/06/2006
• Status: Active Grant

• Current Assignee: Corcym SRL (LivaNova Plc)
• Original Assignee: BioStable Science & Engineering, Inc.
• Inventors: Rankin, J. Scott
• Primary Examiner(s): Sweet, Thomas J
• Assistant Examiner(s): SCHALL, MATTHEW WAYNE
• Application Number:
  US11/799,942
• Publication Number:
  US 20080086204A1
• Time in Patent Office: 1,818 Days
• Field of Search: 623/2.11, 623/2.14, 623/2.16, 623/2.17, 623/2.18, 623/2.13, 623/900, 623/2.1, 623/1.26, 623/1.24, 623 236- 239
• US Class Current: 623/2.36
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2442 Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2210/0071 thermoplastic
• CPC Class Codes: A61F 2240/002 Designing or making customized prostheses

Abstract

An intra-annular mounting frame for an aortic valve having native aortic cusps is provided which includes a frame body with native leaflet reorienting curvatures and interconnecting points; the curvatures shaped to be received inside the valve below the native aortic cusps and to reorient the native aortic cusps within the aortic valve, where each of the curvatures extends concavely upward from a reference latitudinal plane tangential to each curvature'"'"'s base.

Claims

1. An intra-annular mounting frame for an aortic valve having native aortic cusps, comprising:

a frame body including native leaflet reorienting curvatures and interconnecting points and posts;

the curvatures shaped to be received inside the valve below the native aortic cusps and to reorient the native aortic cusps within the aortic valve;

each of the curvatures extending only concavely upward from a reference latitudinal plane tangential to each curvature'"'"'s base;

the interconnecting points connecting the curvatures to form the mounting frame; and

the posts extending radially outward from a central longitudinal axis of the frame.

2. The mounting frame of claim 1 wherein the frame comprises three curvatures and three points.

3. The mounting frame of claim 1 wherein the frame comprises two curvatures and two points.

4. The mounting frame of claim 1 wherein one of the posts extends from each of the points.

5. The mounting frame of claim 4 wherein the posts extend away from the interior area of the frame at an angle of from about 90 degrees to about 120 degrees measured from the internal area of a latitudinal plane of the frame.

6. The mounting frame of claim 1 wherein each post comprises a length equal to about the radius of the valve.

7. The mounting frame of claim 1 wherein each post comprises a length of about 70% to about 130% of the radius of the valve.

8. The mounting frame of claim 1 wherein the length of the post is of from about 8 millimeters to about 16 millimeters.

9. The mounting frame of claim 1 wherein the frame has a circumference of about the circumference of the valve.

10. The mounting frame of claim 1 wherein the frame has a diameter of about 16 millimeters to about 30 millimeters.

11. The mounting frame of claim 1 wherein the frame has a diameter less than the diameter of the valve.

12. The mounting frame of claim 9 wherein the frame has a diameter of about 2 millimeters to about 8 millimeters less than the diameter of the valve.

13. The mounting frame of claim 1 wherein the frame is comprised of metal.

14. The mounting frame of claim 11 wherein the frame comprises metal wire.

15. The mounting frame of claim 1 wherein the frame is comprised of a material selected from the group consisting of plastics, polymers, metal, thermoplastics, resins, and combinations thereof.

16. The mounting frame of claim 1 wherein the frame further comprises perforations through the frame.

17. The mounting frame of claim 1 further comprising a surface covering of polymer-type fiber cloth.

18. The mounting frame of claim 1 further comprising a surface covering of gluteraldehyde-fixed bovine pericardium.

19. The mounting frame of claim 1 wherein each post extends toward a commissure of the aortic valve.

20. The mounting frame of claim 1 wherein each interconnecting point comprises a continuously narrowing tip which connects adjacent curvatures to form the mounting frame.

22. The intra-annular mounting frame of claim 18 wherein each post comprises a length equal to about the radius of the valve.

21. An intra-annular mounting frame for an aortic valve having native aortic cusps, comprising:

a frame body including native leaflet reorienting curvatures and interconnecting points and posts;

the curvatures shaped to be received inside the valve below the native aortic cusps and to reorient the native aortic cusps within the aortic valve;

each of the curvatures extending only concavely upward from a reference latitudinal plane tangential to each curvature'"'"'s base;

the interconnecting points connecting the curvatures to form the mounting frame; and

the posts extending radially outward at about greater than 90 degrees to about 120 degrees from the reference latitudinal plane.

23. An intra-annular mounting frame for an aortic valve having native aortic cusps, comprising:

a frame body including native leaflet reorienting curvatures and interconnecting points with each interconnecting point extending into a continually narrowing tip;

the curvatures shaped to be received inside the valve below the native aortic cusps and to reorient the native aortic cusps within the aortic valve;

each of the curvatures extending only concavely upward from a reference latitudinal plane tangential to each curvature'"'"'s base;

the interconnecting points connecting the curvatures to form the mounting frame; and

the continually narrowing tips extending radially outward from a central longitudinal axis of the frame.

24. An intra-annular mounting frame for an aortic valve having native aortic cusps, comprising:

a frame body including native leaflet reorienting curvatures and interconnecting points each extending into a continually narrowing tip;

the curvatures shaped to be received inside the valve below the native aortic cusps and to reorient the native aortic cusps within the aortic valve;

each of the curvatures extending only concavely upward from a reference latitudinal plane tangential to each curvature'"'"'s base;

the interconnecting points connecting the curvatures to form the mounting frame; and

the continually narrowing tips extending radially outward at about greater than 90 degrees to about 120 degrees from the reference latitudinal plane.