Heart valve repair devices and methods
Devices and methods for the repair of the functioning of heart valves are provided. A device may comprise a first section having a generally spiral shape and a second section connected to the first section. A method involves positioning the device such that chords associated with the heart valve are positioned within the path of the generally spiral shape of the first section and positioning the second section on an opposite side of the heart valve. The first section may be turned in a manner such that the chords move closer to the center of the first section. The first section draws the chords closer together, thereby pulling the valve leaflets closer together in order to facilitate their coaptation and proper closing.
1. A method of repairing a heart valve comprising:
delivering a heart valve assisting device to the area of the heart valve, the device comprising a first section comprising a winding having a generally spiral shape, the winding defining a path between adjacent turns of the winding, and a second section connected to the first section;
positioning the first section on a ventricular side of the heart valve to capture chords associated with the heart valve within the path between adjacent turns of the winding, wherein chords captured inside of an outer turn of the winding are located outside of an inner turn of the winding; and
positioning the second section on an atrial side of the heart valve.
2. A method as in claim 1 , wherein the step of positioning the first section comprises turning the first section in a first direction such that the captured chords move closer to the center of the first section.
3. A method as in claim 2 , wherein the step of positioning the first section comprises, after turning the first section in a first direction, turning the first section in a second direction such that the captured chords move further from the center of the first section, to adjust the positioning of the captured chords in the device.
4. A method as in claim 1 , wherein the device, including the first section, is formed from a tube, and further comprising the step of inserting a stiffening element into the tube to increase the stiffness of the first section.
5. A method as in claim 1 , wherein the step of delivering the heart valve assisting device to the area of the heart valve comprises delivering the device using a femoral approach.
6. A method as in claim 1 , wherein the step of delivering the heart valve assisting device to the area of the heart valve comprises delivering the device using a transseptal approach.
7. A method as in claim 1 , wherein the step of delivering the heart valve assisting device to the area of the heart valve comprises delivering the device using a transapical approach.
8. A method as in claim 1 , wherein the step of delivering the heart valve assisting device to the area of the heart valve comprises using a delivery system including a catheter, and the step of positioning the first section of the device comprises using the delivery system to push the first section of the device from the catheter to the ventricular side of the heart valve.
9. A method as in claim 8 , wherein the step of positioning the first section of the device comprises, after pushing the first section of the device from the catheter, using the delivery system to pull the first section of the device adjacent the heart valve.
10. A method as in claim 1 , wherein the step of positioning the first section comprises using a delivery system to turn the first section in a first direction such that the captured chords move closer to the center of the first section.
11. A method as in claim 1 , further comprising the step of using a delivery system to grasp the device and to withdraw the device.
12. A method of repairing a heart valve comprising:
delivering a heart valve assisting device to the area of the heart valve, the device comprising a first section comprising a winding having a generally spiral shape, the winding defining a path between adjacent turns of the winding, and a second section connected to the first section;
positioning the first section on a ventricular side of the heart valve to capture first chords associated with a first leaflet of the heart valve and second chords associated with a second leaflet of the heart valve within the path between adjacent turns of the winding, wherein chords captured inside of an outer turn of the winding are located outside of an inner turn of the winding; and
positioning the second section on an atrial side of the heart valve.
13. A method as in claim 12 , wherein the step of positioning the first section comprises turning the first section in a first direction such that the captured first chords and the captured second chords move closer to the center of the first section.
14. A method as in claim 13 , wherein the step of positioning the first section comprises, after turning the first section in a first direction, turning the first section in a second direction such that the captured first chords and the captured second chords move further from the center of the first section, to adjust the positioning of the captured first chords and the captured second chords in the device.
15. A method as in claim 12 , wherein the step of delivering the heart valve assisting device to the area of the heart valve comprises using a delivery system including a catheter, and the step of positioning the first section of the device comprises using the delivery system to push the first section of the device from the catheter to the ventricular side of the heart valve.
16. A method of repairing a heart valve comprising:
delivering a heart valve assisting device to the area of the heart valve, the device comprising a first section comprising a winding having a generally spiral shape, the winding emanating from a center of the first section and moving away from the center of the first section as it winds around the center of the first section, the winding defining a path between adjacent turns of the winding, and a second section connected to the first section;
positioning the first section on a ventricular side of the heart valve such that first chords associated with a first leaflet of the heart valve and second chords associated with a second leaflet of the heart valve are positioned within the path between adjacent turns of the winding; and
positioning the second section on an atrial side of the heart valve.
17. A method as in claim 16 , wherein the step of positioning the first section comprises turning the first section in a first direction such that the first chords and the second chords move closer to the center of the first section.
18. A method as in claim 17 , wherein the step of positioning the first section comprises, after turning the first section in a first direction, turning the first section in a second direction such that the first chords and the second chords move further from the center of the first section, to adjust the positioning of the first chords and the second chords in the device.
19. A method as in claim 16 , wherein the step of delivering the heart valve assisting device to the area of the heart valve comprises using a delivery system including a catheter, and the step of positioning the first section of the device comprises using the delivery system to push the first section of the device from the catheter to the ventricular side of the heart valve.
20. A method as in claim 16 , wherein the step of positioning the first section comprises using a delivery system to turn the first section in a first direction such that the first chords and the second chords move closer to the center of the first section.