Systems and methods for transcatheter treatment of valve regurgitation
The invention relates to a device for use in the transcatheter treatment of mitral valve regurgitation, specifically a coaptation assistance devices for implantation across the valve; a system including the coaptation enhancement element and anchors for implantation; a system including the coaptation enhancement element, and one or more of the following: transseptal sheath, anchor delivery catheter, implant delivery catheter, and clip delivery catheter; and methods for transcatheter implantation of a coaptation element across a heart valve.
1. An implant for treating mal-coaptation of a heart valve, the heart valve having an annulus and posterior and anterior leaflets with an open configuration and a closed configuration, the implant comprising:
a coaptation assist body comprising a covering material having a first surface configured to be disposed toward the posterior leaflet and an opposed second surface configured to be disposed toward the anterior leaflet to allow the anterior leaflet to coapt with the coaptation assist body, the covering material forming a curved superior edge configured to be positioned along the annulus, the covering material extending from the curved superior edge toward a curved inferior edge, the curved inferior edge configured to be positioned along the posterior leaflet, the covering material having lateral sides tapering from the curved superior edge to the curved inferior edge, the covering material comprising an opening spaced inward from the superior edge;
a plurality of ribbons extending from the covering material configured to engage at least a portion of the heart valve, the plurality of ribbons comprising a shape memory material having a preformed shape with at least one curve, the plurality of ribbons movable from a first compressed configuration to a second expanded configuration; and
an atrial anchor comprising a helical body, wherein the opening in the covering material is configured to accept the atrial anchor.
2. The implant of claim 1 , wherein the plurality of ribbons comprise a nitinol alloy.
3. The implant of claim 1 , wherein the plurality of ribbons are self-expanding.
4. The implant of claim 1 , wherein the plurality of ribbons are configured to engage the posterior leaflet without engaging the anterior leaflet.
5. The implant of claim 1 , wherein the plurality of ribbons are configured to resist movement of the implant.
6. The implant of claim 1 , wherein each ribbon comprises a single longitudinal strip having a first end and a second end.
7. The implant of claim 1 , wherein the coaptation assist body of the implant is configured to be positioned to allow the anterior leaflet to coapt against the coaptation assist body of the implant when the implant is positioned over the posterior leaflet.
8. The implant of claim 1 , wherein at least one ribbon of the plurality of ribbons aligns with the atrial anchor when the atrial anchor is disposed through the opening.
9. An implant for treating mal-coaptation of a heart valve, comprising:
an implant body configured to improve function of the heart valve, the implant body comprising a superior edge, an inferior edge, and lateral edges, the implant body comprising a covering material extending between the superior edge, the inferior edge, and the lateral edges of the implant body, wherein the implant body is configured to be suspended across a valve plane from an atrium superiorly to a ventricle inferiorly, wherein the covering material passes radially inwardly from the superior edge, before passing inferiorly, in a longitudinal direction perpendicular to the valve plane, the covering material providing a coaptation surface for an anterior leaflet to coapt against, the covering material comprising an opening spaced between the superior edge and the coaptation surface;
a plurality of ribbons configured to engage at least a portion of the heart valve, the plurality of ribbons comprising a shape memory material having a preformed shape with at least one curve, the plurality of ribbons movable from a first compressed configuration to a second expanded configuration; and
an atrial anchor comprising a helical body, wherein the helical body is configured to extend through the opening in the covering material, wherein the atrial anchor is offset inward from the superior edge, the inferior edge, and the lateral edges when disposed through the opening.
10. The implant of claim 9 , further comprising at least one additional anchor.
11. The implant of claim 9 , wherein the implant body extends along a length of a posterior leaflet.
12. The implant of claim 9 , further comprising a frame.
13. The implant of claim 9 , wherein each ribbon is spring loaded.
14. The implant of claim 9 , wherein the atrial anchor is configured to engage an upper atrium side of the implant body.
15. The implant of claim 14 , further comprising an additional anchor configured to engage the upper atrium side of the implant body.
16. An implant for treating mal-coaptation of a heart valve, the heart valve having an annulus and posterior and anterior leaflets with an open configuration and a closed configuration, the implant comprising:
a coaptation assist body comprising a covering material having a first surface configured to be disposed toward the posterior leaflet and an opposed second surface configured to be disposed toward the anterior leaflet to allow the anterior leaflet to coapt with the coaptation assist body, the coaptation assist body comprising a superior edge configured to be positioned above a valve plane, an inferior edge configured to be positioned below the valve plane, and lateral edges extending between the superior edge and the inferior edge, the covering material extending along a length between the superior edge and the inferior edge, the covering material comprising a first opening spaced inward from the superior edge and a pair of second openings laterally disposed from the first opening;
a plurality of ribbons configured to engage at least a portion of the heart valve, the plurality of ribbons comprising a shape memory material having a preformed shape with at least one curve, the plurality of ribbons movable from a first compressed configuration to a second expanded configuration;
an atrial anchor comprising a helical body, wherein the first opening in the covering material is configured to accept the atrial anchor, and
a pair of lateral anchors, wherein the pair of second openings in the covering material is configured to accept the pair of lateral anchors, wherein the atrial anchor and the pair of lateral anchors are configured to secure an upper atrium side of the coaptation assist body.
17. The implant of claim 16 , wherein the plurality of ribbons comprise nitinol.
18. The implant of claim 16 , wherein each ribbon comprises a single longitudinal strip.
19. The implant of claim 16 , wherein at least one ribbon aligns with the atrial anchor when the atrial anchor is disposed through the opening.
20. The implant of claim 16 , wherein each of the lateral anchors comprise a helical body.