Device, system and method to affect the mitral valve annulus of a heart
View Patent ↗A device for modifying the shape of a mitral valve annulus. In one embodiment, the device includes a connector disposed between first and second anchors, the first and second anchors each adapted to be deployed in a coronary sinus adjacent the mitral valve annulus to anchor the device in the coronary sinus; and an actuation element adapted to receive a proximally or distally directed actuation force from an actuator and to transmit the actuation force to the first and second anchors simultaneously. The invention also includes a system for modifying the shape of a mitral valve annulus, including a percutaneous deployment apparatus, including an actuator; and a percutaneous mitral valve annuloplasty device with a connector disposed between first and second anchors, the first and second anchors each adapted to be deployed in a coronary sinus adjacent the mitral valve annulus to anchor the device in the coronary sinus; and an actuation element adapted to receive a distally proximally directed actuation force from the actuator and to transmit the actuation force to the first and second anchors simultaneously. The invention also includes a method of using such devices and systems.
1. A method of modifying the shape of a mitral valve annulus comprising:
inserting a percutaneous mitral valve annuloplasty device into a coronary sinus adjacent to the mitral valve annulus, the mitral valve annuloplasty device comprising a connector disposed between first and second anchors; and
applying a distally or proximally directed actuation force to the mitral valve annuloplasty device to expand the first and second anchors simultaneously.
2. The method of claim 1 wherein the applying step comprises applying the actuation force to the mitral valve annuloplasty device to change the shape of the first anchor.
3. The method of claim 1 wherein the applying step comprises applying the actuation force to the mitral valve annuloplasty device to change the shape of the first and second anchors.
4. The method of claim 1 wherein mitral valve annuloplasty device comprises a lock, the method further comprising locking the first and second anchors in a expanded configuration.
5. The method of claim 4 further comprising unlocking the first and second anchors.
6. The method of claim 5 wherein the unlocking step comprises applying a proximally directed force on the lock.
7. The method of claim 1 wherein the actuation force is a first actuation force, the method further comprising applying a second actuation force to the mitral valve annuloplasty device to expand the first and second anchors simultaneously.
8. The method of claim 7 wherein the step of applying a first actuation force comprises applying a proximally directed force to a first actuation element of the mitral valve annuloplasty device.
9. The method of claim 8 wherein the step of applying a second actuation force comprises applying a distally directed force to a second actuation element of the mitral valve annuloplasty device.
10. The method of claim 1 wherein the applying step comprises applying the actuation force to the mitral valve annuloplasty device to move a first actuation element of the mitral valve annuloplasty device toward a second actuation element of the mitral valve annuloplasty device.
11. The method of claim 10 further comprising locking the first and second actuation elements together to lock the anchors in the expanded configuration.
12. The method of claim 11 further comprising moving the first and second actuation elements apart to unlock the anchors from the expanded configuration.
13. The method of claim 1 wherein the applying step comprises applying a first actuation force, the method further comprising moving the second anchor proximally while the first anchor remains substantially in place within the coronary sinus and applying a second actuation force to further expand the anchors.