Intra-annular mounting frame for aortic valve repair

• US 9,844,434 B2
• Filed: 11/05/2014
• Issued: 12/19/2017
• Est. Priority Date: 10/06/2006
• Status: Active Grant

• Current Assignee: BioStable Science & Engineering, Inc.
• Original Assignee: BioStable Science & Engineering, Inc.
• Inventors: Rankin, J. Scott
• Primary Examiner(s): SCHALL, MATTHEW WAYNE
• Application Number:
  US14/533,090
• Publication Number:
  US 20150265404A1
• Time in Patent Office: 1,140 Days
• 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 a bicuspid aortic valve, comprising:

two curvatures having ends,

two points interconnecting the ends of the curvatures, and

two posts, such that a post extends from each point;

wherein the curvatures are shaped to be received inside the valve below native cusps of the valve and to reorient the cusps within the valve, and

wherein the posts extend from the points at an angle of 0 degrees to about 30 degrees when measured from an internal area of a vertical plane of the frame.

2. The intra-annular mounting frame of claim 1, wherein the posts extend from the points at an angle of about 1 degree to about 30 degrees when measured from an internal area of a vertical plane of the frame.

3. The intra-annular mounting frame of claim 1, wherein the posts extend from the points at an angle of about 5 degrees to about 15 degrees when measured from an internal area of a latitudinal plane of the frame.

4. The intra-annular mounting frame of claim 1, wherein the length of the post is from about 8 millimeters to about 16 millimeters.

5. The intra-annular mounting frame of claim 1, wherein each post has a length of about 70% to about 130% of the radius of the valve.

6. The intra-annular mounting frame of claim 1, wherein the frame has a diameter that is less than the diameter of the valve.

7. The intra-annular mounting frame of claim 1, wherein the frame has a diameter of about 2 millimeters to about 8 millimeters less than the diameter of the valve.

8. The intra-annular mounting frame of claim 1, wherein the diameter of the frame ranges from about 15 millimeters to about 30 millimeters.

9. The intra-annular mounting frame of claim 1, wherein the length of one of the curvatures is up to about 30% larger the other curvature.

10. The intra-annular mounting frame of claim 1, wherein the length of one of the curvatures is up to about 20% larger the other curvature.

11. The intra-annular mounting frame of claim 1, wherein the length of the curvatures is substantially equal.

12. The intra-annular mounting frame of claim 1, wherein the posts are positioned about 90°

to about 180°

apart on the circumference of the frame.

13. The intra-annular mounting frame of claim 1, wherein the frame has an elliptical shape having a major axis and a minor axis.

14. The intra-annular mounting frame of claim 1, wherein the ratio of the major axis to the minor axis ranges from about 1 to about 1.8.

15. The intra-annular mounting frame of claim 1, wherein the ratio of the major axis to the minor axis ranges from about 1.1 to about 1.8.

16. The intra-annular mounting frame of claim 1, wherein the ratio of the major axis to the minor axis ranges from about 1.2 to about 1.7.

17. The intra-annular mounting frame of claim 1, wherein the ratio of the major axis to the minor axis ranges is about 1.5.

18. The intra-annular mounting frame of claim 1, wherein the frame has a non-axisymmetric shape.

19. The intra-annular mounting frame of claim 1, wherein the frame comprises metal.

20. The intra-annular mounting frame of claim 1, wherein the frame comprises a material selected from the group consisting of plastics, polymers, metal, thermoplastics, resins, and combinations thereof.

21. The intra-annular mounting frame of claim 1, further comprising a surface covering of a polymer fiber cloth.

22. The intra-annular mounting frame of claim 1, wherein the polymer fiber cloth comprises polyethylene terephthalate.