Tissue Shaping Device

• US 20080319542A1
• Filed: 04/01/2008
• Published: 12/25/2008
• Est. Priority Date: 01/30/2002
• Status: Active Grant

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Nieminen, Gregory, Aronson, Nathan
• Granted Patent: US 7,828,842 B2
• Time in Patent Office: Days
• US Class Current: 623/2.37
• CPC Class Codes: A61B 2017/00243 cardiac
• 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 2/2448 D-shaped rings
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2/246 Devices for obstructing a leak through a native valve in a closed condition
• CPC Class Codes: A61F 2/2466 Delivery devices therefor
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2250/0012 for adjusting elasticity, flexibility, spring rate or mechanical tension
• CPC Class Codes: A61F 2310/00017 Iron- or Fe-based alloys, e.g. stainless steel
• CPC Class Codes: A61F 2310/00023 Titanium or titanium-based alloys, e.g. Ti-Ni alloys
• CPC Class Codes: A61N 1/057 Anchoring means; Means for fixing the head inside the heart
• CPC Class Codes: A61N 2001/0585 Coronary sinus electrodes

Abstract

In one embodiment, the present invention relates to a tissue shaping device adapted to be disposed in a vessel near a patient'"'"'s heart to reshape the patient'"'"'s heart. Such tissue shaping device can include an expandable proximal anchor; a proximal anchor lock adapted to lock the proximal anchor in an expanded configuration; an expandable distal anchor; a distal anchor lock adapted to lock the distal anchor in an expanded configuration; and a connector disposed between the proximal anchor and the distal anchor, the connector having a substantially non-circular cross-section.

Claims

1. A tissue shaping device adapted to be disposed in a vessel near a patient'"'"'s heart to reshape the patient'"'"'s heart, the tissue shaping device comprising:

an expandable proximal anchor;

a proximal anchor lock adapted to lock the proximal anchor in an expanded configuration;

an expandable distal anchor;

a distal anchor lock adapted to lock the distal anchor in an expanded configuration; and

a connector disposed between the proximal anchor and the distal anchor, the connector having a substantially non-circular cross-section.

2. The device of claim 1 wherein the connector flat element has a substantially rectangular cross-section.

3. The device of claim 1 wherein the distal anchor lock comprises a bend in the connector.

4. The device of claim 3 wherein the distal anchor lock further comprises a compliant element adjacent the bend in the connector, the compliant element being adapted to change shape during a distal anchor locking operation.

5. The device of claim 1 wherein the distal anchor lock comprises an anchor lock element adapted to move with respect to the connector as the distal anchor expands.

6. The device of claim 1 wherein the connector comprises a first connector, the device further comprising a second connector extending between the proximal and distal anchors.

7. The device of claim 6 wherein the distal anchor lock comprises at least part of the second connector.

8. The device of claim 1 wherein the distal anchor comprises a crimp and a wire element extending from the crimp, the wire element having a strain relief portion extending distal of the crimp to form a bend extending substantially below a plane defined by the crimp.

9. The device of claim 8 wherein the distal anchor wire element further comprises a vessel engagement portion extending proximally from the strain relief portion and away from the crimp.

10. The device of claim 9 wherein the distal anchor wire element further comprises a lock portion extending from the vessel engagement portion and forming part of the distal lock.

11. The device of claim 1 wherein the proximal anchor comprises a crimp and a wire element extending from the crimp, the wire element having a strain relief portion extending distal of the crimp to form a bend extending substantially below a plane defined by the crimp.

12. The device of claim 11 wherein the proximal anchor wire element further comprises a vessel engagement portion extending proximally from the strain relief portion and away from the crimp.

13. The device of claim 12 wherein the proximal anchor wire element further comprises a lock portion extending from the vessel engagement portion and forming part of the proximal lock.

19. The device of claim 6 wherein said second connector is adapted to provide fatigue resistance.

14. A tissue shaping device adapted to be disposed in a vessel near a patient'"'"'s heart to reshape the patient'"'"'s heart, the tissue shaping device comprising;

an expandable proximal anchor, the proximal anchor comprising a crimp and a wire element extending from the crimp, the wire element having a strain relief portion extending distal of the crimp to form a bend extending substantially below a plane defined by the crimp;

an expandable distal anchor, the distal anchor comprising a crimp and a wire element extending from the crimp, the wire element having a strain relief portion extending distal of the crimp to form a bend extending substantially below a plane defined by the crimp; and

a connector extending between the proximal anchor crimp and the distal anchor connector crimp.

15. The device of claim 14 wherein the proximal anchor wire element further comprises a vessel engagement portion extending proximally from the strain relief portion and away from the crimp.

16. The device of claim 14 wherein the distal anchor wire element further comprises a vessel engagement portion extending proximally from the strain relief portion and away from the crimp.

17. The device of claim 14 further comprising a proximal anchor lock adapted to lock the proximal anchor in an expanded configuration.

18. The device of claim 14 further comprising a distal anchor lock adapted to lock the distal anchor in an expanded configuration.