Tissue shaping device

• US 9,320,600 B2
• Filed: 03/09/2015
• Issued: 04/26/2016
• 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
• Primary Examiner(s): Gherbi, Suzette J
• Application Number:
  US14/642,476
• Publication Number:
  US 20150173901A1
• Time in Patent Office: 414 Days
• Field of Search: 623 236- 237
• US Class Current: 1/1
• 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 method of modifying the geometry of a mitral valve, comprising

delivering a tissue shaping device to a coronary sinus;

deploying a distal anchor from a delivery device and into the coronary sinus to allow the expandable distal anchor to expand;

locking the distal anchor in a locked configuration;

applying a proximal cinching force to the distal anchor to reshape tissue;

while maintaining the proximal cinching force, deploying the proximal anchor from the delivery device to allow the proximal anchor to expand.

2. The method of claim 1 further comprising locking the proximal anchor in a locked configuration after allowing the proximal anchor to expand.

3. 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,

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.