Heart valve repair apparatus and methods

• US 6,797,002 B2
• Filed: 10/09/2002
• Issued: 09/28/2004
• Est. Priority Date: 02/02/2000
• Status: Expired due to Fees

• Current Assignee: Cardiac Lead Technologies, LLC
• Original Assignee: Paul A. Spence
• Inventors: Ortiz, Mark, Spence, Paul A.
• Primary Examiner(s): McDermott, Corrine
• Assistant Examiner(s): MATTHEWS, WILLIAM H
• Application Number:
  US10/268,028
• Publication Number:
  US 20030083742A1
• Time in Patent Office: 720 Days
• Field of Search: 623/236, 623/2.37, 623/2.38, 623/2.1, 623/2.17, 623/2.14, 623/2.18
• US Class Current: 623/2.38
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus
• CPC Class Codes: A61F 2/2448 D-shaped rings
• CPC Class Codes: A61F 2/2454 Means for preventing inversion of the valve leaflets, e.g. chordae tendineae prostheses
• CPC Class Codes: A61F 2/2457 Chordae tendineae prostheses
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2220/0091 connected by a hinged linkage mechanism, e.g. of the single-bar or multi-bar linkage type

Abstract

Valve repair apparatus and methods for ensuring proper coaptation and operation of the leaflets of a heart valve. Main aspects of the disclosure relate to devices including a support member configured for attachment to the heart valve annulus, a post extending from the support member away from the plane of the annulus and a connector coupled with the post and configured for attachment to at least one of the leaflets. The various embodiments may include a replacement heart valve connected with the support member for facilitating full replacement as opposed to near repair of an existing native heart valve. Various other devices include support structure and one or more posts connected to opposite sides of the support structure and extending from one side of the valve annulus to another to modify the shape of the annulus.

Claims

1. A device for supporting a heart valve in a patient, the heart valve including an annulus generally lying in a plane and a plurality of leaflets connected therewith and having coapting edges adapted to open and close to selectively allow and prevent blood flow, the device comprising:

a support member configured for attachment to the heart valve annulus, and

a post extending from said support member and configured to extend away from the plane of the annulus, and

a connector coupled with said post and configured for attachment to at least one of said coapting edges of said leaflets.

2. The device of claim 1, wherein said connector is configured to connect one end of said post directly adjacent said one of said coapting edges.

3. The device of claim 1, wherein said support member is ring-shaped and includes a straight section connected with a curved section.

4. The device of claim 1, wherein said post is generally J-shaped with a long section and a shorter section, said long section connected to said support member and said shorter section coupled with said connector.

5. The device of claim 1, wherein said post has a blunt contact surface configured for insertion and retention within the heart chamber without damaging the heart during or after implantation.

6. The device of claim 1, wherein said post is configured to extend radially outside the annulus of said valve when affixed thereto.

7. A device for supporting a heart valve in a patient, the heart valve including an annulus generally contained an a plane and a plurality of leaflets having coapting edges adapted to open and close to selectively allow and prevent blood flow, said leaflets being supported by a plurality of artificial or natural chords, the device comprising:

a support member configured for attachment to the heart valve annulus,

at least one post extending from said support member and configured to extend away from the plane of the annulus, and

a first chord gripping member coupled with said post and configured to releasably clamp at least one of said chords at adjustable positions along the length of said one chord and thereby fixes a desired portion of the length of said one chord between said first chord gripping member and one of the coapting edges of said leaflets thereby supporting and aligning said leaflets for coaptation during operation of the valve.

8. The device of claim 7, wherein said first chord gripping member further comprises a pair of movable jaws adapted to grip the first plurality of chords therebetween.

9. The device of claim 7, further comprising a second chord gripping member configured to grip a second plurality of said chords and thereby fix the length of said second plurality of said chords between said second chord gripping member and said leaflets to support and align said leaflets for coaptation during operation of the valve.

10. The device of claim 9, wherein said first and second chord gripping members each further comprises a pair of movable jaws adapted to grip the first and second pluralities of chords respectively therebetween.

11. The device of claim 7, wherein at least a portion of said first chord gripping member is formed of shape memory material allowing remote actuation thereof to grip the first plurality of chords.

12. The device of claim 7, further comprising an actuating structure coupled with said first chord gripping member and configured to move a portion of said first chord gripping member with respect to another portion of said first chord gripping member to grip the first plurality of chords.

13. The device of claim 7, wherein said support member is ring-shaped.

14. The device of claim 7, wherein said support member is shaped as a ring segment.

15. The device of claim 7 further comprising a replacement heart valve attached to said support member.