Implant for heart valve
An implant includes a clip and a clip-controller interface. The clip is disposed laterally from a central longitudinal axis of the implant, includes first and second arms articulatably coupled to each other, and sandwiches a leaflet of a heart valve between the first and second arms by articulation between the first and second arms, such that the second arm is disposed laterally from the first arm. The clip-controller interface is reversibly coupled to a clip controller of a delivery tool, and includes first and second portions. The first portion is linearly slidable by the clip controller. The second portion is articulatably coupled to the first portion and to the second arm, such that linear sliding of the first portion causes the second portion to (i) articulate with respect to the first portion, and (ii) push the second arm to articulate toward the axis. Other embodiments are also described.
1. Apparatus for use with a valve of a heart of a subject, the apparatus comprising:
a delivery tool, transluminally advanceable to the heart, and comprising a clip controller; and
an implant, having a central longitudinal axis, and coupled to a distal portion of the delivery tool, and comprising:
a clip:
disposed laterally from the longitudinal axis,
comprising a first arm, and a second arm articulatably coupled to the first arm, and
configured to be attached to a leaflet of the valve by sandwiching the leaflet between the first arm and the second arm by articulation between the first arm and the second arm, such that the second arm is disposed laterally from the first arm; and
a clip-controller interface, reversibly coupled to the clip controller, and comprising:
a first interface portion, configured to be slid linearly by the clip controller, and
a second interface portion, articulatably coupled to the first interface portion, and articulatably coupled to the second arm, such that linear sliding of the first interface portion causes the second interface portion to (i) articulate with respect to the first interface portion, and (ii) push the second arm to articulate toward the central longitudinal axis.
2. The apparatus according to claim 1 , wherein:
the clip is a first clip, the leaflet is a first leaflet of the valve, and the first clip is configured to be attached to a middle scallop of the first leaflet; and
the implant further comprises a second clip, disposed on an opposite lateral side of the longitudinal axis from the first clip, and configured to be attached to a middle scallop of a second leaflet of the valve such that, while the first clip is attached to the middle scallop of the first leaflet and the second clip is attached to the middle scallop of the second leaflet, the implant arranges the first leaflet and the second leaflet into a double-orifice configuration.
3. The apparatus according to claim 2 , wherein the first clip and the second clip are controllable independently of each other.
4. The apparatus according to claim 1 , wherein the first arm comprises teeth, configured to pierce the leaflet.
5. The apparatus according to claim 4 , wherein the clip comprises padding, configured to cushion contact between the clip and the leaflet.
6. The apparatus according to claim 1 , wherein the second interface portion is articulatably coupled to the second arm at a lateral surface of the second arm.
7. The apparatus according to claim 1 , wherein the implant comprises a locking element, configured to facilitate locking of the clip subsequent to closing of the clip.
8. The apparatus according to claim 1 , wherein the second arm is articulatable by 60-180 degrees with respect to the first arm.
9. The apparatus according to claim 1 , wherein the second arm is articulatable by 80-180 degrees with respect to the first arm.
10. The apparatus according to claim 1 , wherein the second arm is articulatable by 100-180 degrees with respect to the first arm.
11. The apparatus according to claim 1 , wherein the second arm is articulatable by 120-180 degrees with respect to the first arm.