Annular prosthesis for mitral valve

• US 6,726,717 B2
• Filed: 05/15/2002
• Issued: 04/27/2004
• Est. Priority Date: 05/17/2001
• Status: Expired due to Term

• Current Assignee: Edwards Lifesciences Corporation
• Original Assignee: Edwards Lifesciences Corporation
• Inventors: Maisano, Francesco, Alfieri, Ottavio, Redaelli, Alberto
• Primary Examiner(s): Willse, David H.
• Assistant Examiner(s): LANDREM, KAMRIN R
• Application Number:
  US10/144,932
• Publication Number:
  US 20020173844A1
• Time in Patent Office: 713 Days
• Field of Search: 623/2.36, 623/2.37, 623/2.38, 623/2.39
• US Class Current: 623/2.36
• CPC Class Codes: A61F 2/2448 D-shaped rings

Abstract

The present invention refers to an annular prosthesis for mitral valve. In one of its embodiments the annular prosthesis for mitral valve is made up of a posterior half-ring and an anterior half-ring coupled to each other on a first transverse plane which defines a maximum width section of the prosthesis, characterised in that the ratio between the distance between said anterior half-ring and said posterior half-ring, as measured along a second plane, perpendicular to said first plane and equidistant to said couplings, and said maximum width of the prosthesis is lower than 3/4.

Claims

1. An annular prosthesis for a mitral valve comprising a posterior half-ring and an anterior half-ring coupled to each other on a first transverse plane at two coupling points, the first transverse plane defining a maximum width section of the prosthesis, wherein the ratio between (a) the distance between said anterior half-ring and said posterior half-ring, as measured along a second plane that is perpendicular to the first plane and equidistant to said coupling points and (b) the maximum width of said prosthesis is lower than 3/4.

2. The annular prosthesis of claim 1, wherein said ratio is lower than or equal to 2.5/4.

3. The annular prosthesis of claim 1, wherein said posterior half-ring has a gull wing shape.

4. The annular prosthesis of claim 3, wherein said posterior half-ring is symmetrical with respect to the second plane.

5. The annular prosthesis of claim 1, wherein said posterior half-ring is symmetrical with respect to the second plane.

6. The annular prosthesis of claim 1, wherein is said posterior half-ring is asymmetrical with respect to the second plane.

7. The annular prosthesis of claim 6, wherein one lateral portion of said posterior half-ring has a radius of curvature that is smaller than the other lateral portion of said posterior half-ring.

8. An annuloplasty ring for a mitral valve comprising a posterior half-ring and an anterior half-ring coupled to each other on a first transverse plane at two coupling points, the first transverse plane defining a maximum width section of the ring, wherein the ratio between (a) the distance between said anterior half-ring and said posterior half-ring, as measured along a second plane that is perpendicular to the first plane and equidistant to said coupling points, and (b) the maximum width of said ring is lower than 3/4.

9. The annuloplasty ring of claim 8, wherein said ratio is lower than or equal to 2.5/4.

10. The annuloplasty ring of claim 8, wherein said posterior half-ring has a gull wing shape.

11. The annuloplasty ring of claim 10, wherein said posterior half-ring is symmetrical with respect to the second plane.

12. The annuloplasty ring of claim 8, wherein said posterior half-ring is symmetrical with respect to the second plane.

13. The annuloplasty ring of claim 8, wherein is said posterior half-ring is asymmetrical with respect to the second plane.

14. The annuloplasty ring of claim 13, wherein one lateral portion of said posterior half-ring has a radius of curvature that is smaller than the other lateral portion of said posterior half-ring.