Method and device for treatment of mitral insufficiency

• US 20040102840A1
• Filed: 11/13/2003
• Published: 05/27/2004
• Est. Priority Date: 06/30/1999
• Status: Abandoned Application

• Current Assignee: Erwin Berger, Jan Otto Solem, Michael Schwager, Per Ola Kimblad
• Original Assignee: Erwin Berger, Jan Otto Solem, Michael Schwager, Per Ola Kimblad
• Inventors: Solem, Jan Otto, Kimblad, Per Ola, Berger, Erwin, Schwager, Michael
• Application Number:
  US10/714,462
• Publication Number:
  US 20040102840A1
• Time in Patent Office: Days
• US Class Current: 623/2.11
• CPC Class Codes: A61F 2/2451 Inserts in the coronary sinus for correcting the valve shape
• CPC Class Codes: A61F 2/88 the wire-like elements formed as helical or spiral coils forming a net-like or mesh-like structure A61F2/90
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body
• CPC Class Codes: A61F 2230/0078 hyperboloidal

Abstract

A device for treatment of mitral annulus dilatation comprises an elongate body having two states. IN a first of these states the elongate body is insertable into the coronary sinus and has a shape adapting to the shape of the coronary sinus. When positioned in the coronary sinus, the elongate body is transferable to the second state assuming a reduced radius of curvature, whereby the radius of curvature of the coronary sinus and the radius of curvature as well as the circumference of the mitral annulus is reduced.

Claims

1. An assembly for effecting the condition of a mitral valve annulus of a heart comprising:

a guide wire configured to be advanced to the coronary sinus of the heart; and

a mitral valve annulus device configured to be received on the guide wire and advanced into the coronary sinus of the heart on the guide wire and that reshapes the mitral valve annulus when in the coronary sinus of the heart.

2. The assembly of claim 1 wherein the device is configured to be slidingly received on the guide wire.

3. The assembly of claim 1 wherein the mitral valve annulus device has opposed ends and includes a guide wire engaging structure at at least one of the opposed ends.

4. The assembly of claim 3 wherein the guide wire engaging structure includes a bore dimensioned to permit the guide wire to pass therethrough.

5. The assembly of claim 4 wherein the device further includes a guide wire confining channel extending between the opposed ends.

6. The assembly of claim 4 wherein the bore of the guide wire engaging structure is cylindrical in configuration.

7. The assembly of claim 6 wherein the device further includes a guide wire confining channel extending between the opposed ends and aligned with the bore.

8. The assembly of claim 1 wherein the guide wire is formed of a material visible under X ray.

9. The assembly of claim 1 wherein at least a portion of the device is visible under X ray.

10. The assembly of claim 1 wherein the device is visible under X ray.

11. The assembly of claim 1 further including an elongated introducer configured to be received on the guide wire proximal to the device.

12. The assembly of claim 11 wherein the introducer is configured to be slidingly received on the guide wire.

13. The assembly of claim 11 wherein the assembly further includes a releasable locking mechanism configured to releasably lock the device to the introducer.

14. The assembly of claim 11 further including a guide tube having an inner lumen dimensioned for receiving the guide wire and the device and introducer when the device and introducer are received on the guide wire.

15. A method of deploying a mitral valve annulus constricting device within the coronary sinus of a heart, the method including the steps of:

A. providing an elongated guide wire having a cross sectional dimension;

B. advancing the guide wire to the coronary sinus of the heart;

C. providing a guide tube having an inner lumen, the inner lumen having a cross sectional dimension greater than the cross sectional dimension of the guide wire;

D. advancing the guide tube to the coronary sinus of the heart on the guide wire with the guide wire within the inner lumen of the guide tube;

E. providing a mitral valve annulus device configured to be received on the guide wire and within the inner lumen of the guide tube, the device including a proximal end;

F. providing a flexible elongated introducer configured to be received on the guide wire and within the inner lumen of the guide tube, the introducer having a distal end;

G. placing the device onto the guide wire;

H. placing the introducer onto the guide wire;

I. engaging the introducer with the device;

J. pushing the device with the introducer in a distal direction along the guide wire and within the guide tube until the device is at least partially encircling the mitral valve within the coronary sinus of the heart; and

K. withdrawing the introducer and the guide tube from the heart.

16. The method of claim 15 wherein the engaging step includes the step I(1) of releasably locking the device to the introducer.

17. The method of claim 16 including the further step J(1) of releasing the device from the introducer prior to withdrawing the introducer.

18. A method of deploying a mitral valve annulus reshaping device within the coronary sinus of a heart, the method including the steps of:

advancing a guide wire to the coronary sinus of the heart;

advancing the elongated mitral valve annulus reshaping device on the guide wire and into the coronary sinus into a position such that the device at least partially encircles the mitral valve of the heart.

19. The method of claim 18 wherein the advancing step further includes the steps of mounting an elongated flexible introducer onto the guide wire, engaging the introducer with the device, and pushing the device distally into the coronary sinus with the introducer.

20. The method of claim 19 including the further step of withdrawing the introducer after deploying the device.

21. The method of claim 20 wherein the engaging step includes releasably locking the device to the introducer.

22. The method of claim 21 including the further step of releasing the device from the introducer prior to withdrawing the introducer.

23. The method of claim 19 including the further steps of:

providing an elongated flexible guide tube having an inner lumen, the inner lumen having a cross sectional dimension greater than the cross sectional dimension of the guide wire;

advancing the guide tube to the coronary sinus of the heart over the guide wire with the guide wire within the inner lumen of the guide tube; and

wherein the pushing step includes pushing the device along the guide wire and within the guide tube.

24. The method of claim 23 wherein the engaging step includes releasably locking the device to the introducer.

25. The method of claim 24 including the further steps of releasing the device from the introducer and withdrawing the introducer and the guide tube after deploying the device.