Tissue restraining devices and methods of use

• US 9,554,906 B2
• Filed: 10/27/2015
• Issued: 01/31/2017
• Est. Priority Date: 11/18/2010
• Status: Active Grant

• Current Assignee: Pavilion Medical Innovations, LLC
• Original Assignee: Pavilion Medical Innovations, LLC
• Inventors: Aklog, Lishan, deGuzman, Brian
• Primary Examiner(s): DUKERT, BRIAN AINSLEY
• Application Number:
  US14/923,625
• Publication Number:
  US 20160113769A1
• Time in Patent Office: 462 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0441 the shaft being a rigid coil or spiral
• CPC Class Codes: A61B 2017/0496 for tensioning sutures
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• 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

Abstract

Tissue restraining systems and devices as well as methods of using these devices are disclosed herein. According to aspects illustrated herein, there is provided a tissue restraining device that may include an annuloplasty member having one or more contact points along a portion of the annuloplasty member in a spaced relation to one another. The tissue restraining device may also include a second anchor for placement in a substantially opposing, spaced relation to the annuloplasty member. A restraining matrix may extend from the contact points of the annuloplasty member to the second anchor.

Claims

1. A tissue restraining device comprising:

an annuloplasty member for attachment to a valve annulus of a cardiac valve, the annuloplasty member defining an opening;

an anchor situated in a spaced relation to the annuloplasty member on an opposite side of the cardiac valve;

a plurality of restraining cords forming a restraining matrix extending from the annuloplasty member into the opening and toward the anchor; and

a tensioning strand extending distally from the restraining matrix, passing through the anchor, and extending proximally past the anchor so the restraining matrix is adjustable as a single unit to change a tension in the restraining matrix.

2. The device of claim 1, wherein the restraining cords converge at their distal ends to form an apex between the annuloplasty member and the anchor, and the tensioning strand extends from the apex.

3. The device of claim 1, wherein the tensioning strand extends through the annuloplasty member.

4. The device of claim 1, wherein the restraining cords are individually adjustable to change a tension in the restraining matrix.

5. The device of claim 4, wherein the annuloplasty member includes a second strand to provide a tying point for the tensioning strand.

6. The device of claim 1, wherein the anchor includes a loop for passing the tensioning strand therethrough.

7. The device of claim 1, wherein the annuloplasty member is configured to be implanted substantially along an annulus of a mitral valve, the anchor is configured to be implanted in a left ventricle, and, when the restraining device is implanted into the mitral valve, the restraining matrix is extended between the annuloplasty member and the anchor to drape over the leaflet.

8. The device of claim 1, wherein the annuloplasty member includes one or more inner lumens and one or more openings in communication with the inner lumens to allow a plurality restraining cords to be passed through the inner lumens of the ring and out of the plurality of openings to form the restraining matrix.

9. The device of claim 1, wherein the restraining matrix further comprises cross-restraint members extending between the plurality of the restraining cords.

10. A method of treatment of a mitral valve comprising:

attaching an annuloplasty member substantially along the valve annulus;

embedding an anchor into a tissue in a left ventricle;

extending a restraining matrix from the annuloplasty member over a leaflet of the mitral valve, wherein a tensioning strand extends distally from the restraining matrix, through the anchor, and proximally past the anchor; and

adjusting the restraining matrix to correct one or more prolapsing segments of the leaflet by changing a tension in the tensioning strand.

11. The method of claim 10, wherein in the step of adjusting, the restraining matrix is formed by one or more restraining cords.

12. The method of claim 11, wherein in the step of adjusting, the restraining matrix is adjusted by individually adjusting the restraining cords.

13. The method of claim 10, wherein in the step of adjusting, the restraining matrix is adjusted by passing the tensioning strand through a loop of the anchor and pulling the tensioning strand away from the anchor.

14. The method of claim 13, wherein in the step of adjusting, the annuloplasty member includes a second strand to provide a tying point for the first strand to fix the restraining matrix in a desired tension.

15. The method of claim 11, wherein the restraining cords converge at their distal ends to form an apex between the annuloplasty member and the anchor, and the tensioning strand extends from the apex.