Tissue shaping device

• US 9,827,100 B2
• Filed: 09/09/2016
• Issued: 11/28/2017
• Est. Priority Date: 01/30/2002
• Status: Expired due to Term

• Current Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Original Assignee: Cardiac Pacemakers Incorporated (Boston Scientific Corporation)
• Inventors: Mathis, Mark L., Nieminen, Gregory D., Reuter, David G.
• Primary Examiner(s): Matthews, Howie
• Application Number:
  US15/261,594
• Publication Number:
  US 20160374808A1
• Time in Patent Office: 445 Days
• 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

Devices for treating mitral valve regurgitation, including a distal expandable anchor, a proximal expandable anchor, and a fixed length connecting member extending from the proximal expandable anchor to the distal expandable anchor, where at least one of the proximal and distal anchors includes first and second arm segments that extend from one end of the device toward the connecting member and the other anchor when in a collapsed delivery configuration, and where the at least one of the proximal and distal anchors that comprises the first and second arm segments has an expanded configuration in which the first and second arm segments extend radially outwardly such that the first and second arm segments extend away from one another toward the connector, and meet one another at a location axially spaced from the end of the device.

Claims

1. A method of minimally-invasively treating mitral valve regurgitation, comprising:

advancing an intraluminal cardiac device in a collapsed configuration through a delivery device into a coronary sinus, the intraluminal cardiac device comprising a first expandable anchor, a second expandable anchor, and a connecting member extending between the first and second expandable anchors;

expanding the first expandable anchor and anchoring the first expandable anchor against movement in the coronary sinus;

expanding the second expandable anchor and anchoring the second expandable anchor against movement in the coronary sinus;

after the first and second expandable anchors are anchored against movement, delivering a lead and an electrode of an electrophysiology system into the coronary sinus and through the first and second expandable anchors; and

using the intraluminal cardiac device to change the geometry of the mitral valve annulus, bringing the leaflets of the mitral valve closer together, thereby reducing undesirable blood flow regurgitation of the mitral valve during the heart cycle.

2. The method of claim 1, further comprising stabilizing the lead in the coronary sinus.

3. The method of claim 1, further comprising stabilizing the electrode in the heart.

4. The method of claim 1 wherein delivering the lead and electrode through the first anchor comprises delivering the lead and electrode through the first anchor that has an apex of the first anchor extending radially away from the connecting member and from an inside curve of the coronary sinus.

5. The method of claim 4 wherein delivering the lead and electrode through the second anchor comprises delivering the lead and electrode through the second anchor that has an apex of the second anchor extending radially away from the connecting member and from an inside curve of the coronary sinus.

6. The method of claim 1 further comprising positioning the connecting member on an inside curve of the coronary sinus, away from the center of the coronary sinus.

7. The method of claim 1, wherein using the intraluminal cardiac device comprises pulling proximally on the intraluminal cardiac device to change the geometry of the mitral valve annulus, bringing the leaflets of the mitral valve closer together, thereby reducing undesirable blood flow regurgitation of the mitral valve during the heart cycle.

8. The method of claim 1, wherein the first anchor is a distal anchor and the second anchor is a proximal anchor, the method further comprising advancing the electrode further distally than the anchored distal anchor.