Mitral valve annuloplasty device with vena cava anchor
View Patent ↗The present invention relates to a medical device and uses thereof that supports or changes the shape of tissue near a vessel in which the device is placed. The present invention is particularly useful in reducing mitral valve regurgitation by changing the shape of or supporting a mitral valve annulus. The device includes a support structure, a proximal anchor adapted to be positioned in a superior vena cava, and a distal anchor adapted to be positioned in a coronary sinus. The support structure engages a vessel wall to change the shape of tissue adjacent the vessel in which the intravascular support is placed.
1. A device for performing percutaneous mitral valve annuloplasty comprising:
a first anchor adapted to be deployed by a catheter to engage a wall of a coronary sinus;
a second anchor adapted to be deployed by the catheter to engage a wall of a superior vena cava; and
a support structure disposed between and operatively connecting the first anchor and the second anchor.
2. The device of claim 1 further comprising an anchor lock adapted to lock the first anchor in an expanded configuration.
3. The device of claim 1 further comprising an anchor lock adapted to lock the second anchor in an expanded configuration.
4. The device of claim 1 further comprising a coupler adapted to couple the device to a delivery tool.
5. The device of claim 4 wherein the coupler comprises a tether and a hitch wire.
6. The device of claim 4 wherein the coupler is further adapted to release the device from the delivery tool.
7. The device of claim 1 wherein the second anchor is expandable and has a collapsed delivery configuration and an expanded deployed configuration, and wherein the second anchor is adapted to engage the wall of the superior vena cava in the expanded deployed configuration.
8. A device for performing percutaneous mitral valve annuloplasty comprising:
a first anchor adapted to be deployed by a catheter to engage a wall of a coronary sinus;
a second anchor adapted to be deployed by the catheter to engage a wall of a superior vena cava; and
a support structure disposed between and operatively connecting the first anchor and the second anchor, wherein the device is adapted to be recaptured by the catheter.
9. A method of performing mitral valve annuloplasty on a patient's heart comprising:
anchoring a first anchor of a mitral valve annuloplasty device in a coronary sinus;
anchoring a second anchor of the mitral valve annuloplasty device in a superior vena cava, the mitral valve annuloplasty device further comprising a support structure disposed between and operatively connecting the first and the second anchors, and
applying a proximally directed force on the mitral valve annuloplasty device after the first anchoring step.
10. The method of claim 9 further comprising delivering the mitral valve annuloplasty device endovascularly.
11. The method of claim 10 wherein the delivering step comprises delivering the device to a patient's heart via a catheter.
12. The method of claim 11 further comprising capturing the first anchor within the catheter after the first anchoring step.
13. The method of claim 12 wherein the capturing step comprises advancing a catheter distally over the first anchor to place the first anchor inside the catheter in the delivery configuration.
14. The method of claim 11 further comprising capturing the second anchor within the catheter after the second anchoring step.
15. The method of claim 14 wherein the capturing step comprises advancing a catheter distally over the second anchor to place the second anchor inside the catheter in the delivery configuration.
16. The method of claim 9 wherein the first anchoring step comprises expanding the first anchor from a delivery configuration to a deployed configuration in which the first anchor engages the coronary sinus.
17. The method of claim 16 further comprising locking the first anchor in the deployed configuration.
18. The method of claim 9 wherein the second anchoring step comprises expanding the second anchor from a delivery configuration to a deployed configuration in which the second anchor engages the superior vena cava.
19. The method of claim 18 further comprising locking the second anchor in the deployed configuration.
20. The method of claim 9 further comprising uncoupling the device from a delivery tool after the second anchoring step.
21. The method of claim 20 where the uncoupling comprises releasing a hitch wire from the device and removing a tether from the device thereby uncoupling the device from the delivery tool.