Valvular insufficiency repair device and method
This application relates to methods, systems, and apparatus for replacing native heart valves with prosthetic heart valves and treating valvular insufficiency. In a representative embodiment, a support frame configured to be implanted in a heart valve comprises a main body formed by formed by a plurality of inner members forming an inner clover and a plurality of outer members forming an outer clover. The support frame can include gaps located between inner members of the plurality of inner members and outer members of the plurality of outer members. The inner clover can be radially inside the outer clover, and the outer clover can have larger dimensions than the inner clover. The support frames herein can be radially expandable and collapsible.
1. A method, comprising:
implanting a support frame in a native heart valve, the support frame comprising a main body formed by a plurality of inner members forming an inner clover and a plurality of outer members forming an outer clover, gaps being located between inner members of the plurality of inner members and outer members of the plurality of outer members, the plurality of inner members and the plurality of outer members being coupled together at a plurality of crowns at a same radial distance from a center of the support frame, the inner members of the plurality of inner members are coupled near the center of the crowns, and the outer members of the plurality of outer members are coupled to sides of the crowns, the inner clover being radially inside the outer clover, and the outer clover having a width larger than a width of the inner clover.
2. The method of claim 1 , wherein:
implanting the support frame further comprises advancing the support frame through a patient's body in a radially collapsed state; and
least partially advancing the support frame from a delivery sheath such that the support frame expands to an expanded state.
3. The method of claim 1 , further comprising remodeling an annulus of the native heart valve with the support frame.
4. The method of claim 1 , further comprising reducing a valvular orifice area of the native heart valve with the support frame.
5. The method of claim 1 , further comprising deploying a prosthetic heart valve in the support frame.
6. The method of claim 1 , wherein the gaps between the inner members and the outer members are configured to help secure the support frame at the native heart valve.
7. The method of claim 6 , wherein:
the gaps are configured to receive native heart valve leaflets.
8. The method of claim 1 , wherein the inner clover has three inner apices formed by adjacent inner members.
9. The method of claim 8 , wherein the inner apices of the inner clover are coupled to respective crowns.
10. A method, comprising:
implanting a support frame in a native heart valve, the support frame comprising a main body formed by a plurality of curved inner members forming an inner clover and a plurality of outer members forming an outer clover, wherein the plurality of inner members and the plurality of outer members intersect with each other at a plurality of crowns at the same radial distance from a center of the support frame, the inner members of the plurality of inner members intersect near the center of the crowns, and the outer members of the plurality of outer members intersect at the sides of the crowns and wherein the outer clover is concentric with the inner clover and has a width greater than a width of the inner clover.
11. The method of claim 10 , wherein:
implanting the support frame further comprises advancing the support frame through a patient's body in a radially collapsed state; and
at least partially advancing the support frame from a delivery sheath such that the support frame expands to an expanded state.
12. The method of claim 10 , further comprising remodeling an annulus of the native heart valve with the support frame.
13. The method of claim 10 , further comprising reducing a valvular orifice area of the native heart valve with the support frame.
14. The method of claim 10 , further comprising deploying a prosthetic heart valve in the support frame.