Percutaneous transvalvular intraannular band for mitral valve repair
Mitral valve prolapse and mitral regurgitation can be treating by implanting in the mitral annulus a transvalvular intraannular band. The band has a first end, a first anchoring portion located proximate the first end, a second end, a second anchoring portion located proximate the second end, and a central portion. The central portion is positioned so that it extends transversely across a coaptive edge formed by the closure of the mitral valve leaflets. The band may be implanted via translumenal access or via thoracotomy.
1. A system, comprising:
a delivery catheter;
a transvalvular intraannular implant comprising an elongate body having a longitudinal axis from a first end to a second end, wherein the transvalvular intraannular implant is configured to be transformable from a first radially reduced configuration to a second radially enlarged configuration, wherein the transvalvular intraannular implant is configured to be housed within the delivery catheter in the first radially reduced configuration, wherein the transvalvular intraannular implant is configured to be transformed to the second radially enlarged configuration within a heart of a patient and positioned such that the transvalvular intraannular implant is oriented in the heart such that the longitudinal axis of the transvalvular intraannular implant is oriented substantially transversely to a coaptive edge of a heart valve, wherein transvalvular intraannular implant comprises a narrowed central portion to reduce resistance to blood flow.
2. The system of claim 1 , further comprising at least one tissue anchor.
3. The system of claim 2 , wherein the at least one tissue anchor is configured to pass through an opening formed in the transvalvular intraannular implant, but resist retraction in a second, opposite direction, through the opening.
4. The system of claim 1 , further comprising at least two tissue anchors.
5. The system of claim 1 , further comprising a control wire operably attached to the transvalvular intraannular implant for positioning the transvalvular intraannular implant.
6. The system of claim 1 , further comprising a self-expandable support structure operably connected to the transvalvular intraannular implant.
7. The system of claim 1 , wherein the narrowed central portion is narrower than first and second shoulder portions to reduce resistance to blood flow, and wherein the first and second shoulder portions are narrower than first and second anchoring portions to reduce resistance to blood flow.
8. The system of claim 1 , wherein the transvalvular intraannular implant comprises first and second anchoring portions, first and second shoulder portions, and the narrowed central portion, the first anchoring portion located proximate the first end, the second anchoring portion located proximate the second end, the first shoulder portion located between the first anchoring portion and the narrowed central portion, the second shoulder portion located between the second anchoring portion and the narrowed central portion.
9. The system of claim 1 , wherein the transvalvular intraannular implant does not comprise an annuloplasty ring.
10. The system of claim 1 , wherein the narrowed central portion extends out of a reference plane including a portion of the first and second ends.
11. The system of claim 1 , wherein the narrowed central portion comprises at least one strut extending between the first and second ends.
12. The system of claim 1 , wherein the heart valve is a mitral valve.
13. The system of claim 1 , wherein the heart valve is an aortic valve.
14. The system of claim 1 , wherein the heart valve is a tricuspid valve.
15. The system of claim 1 , wherein the heart valve is a pulmonary valve.
16. The system of claim 1 , wherein the transvalvular intraannular implant is configured to treat mitral valve prolapse.
17. The system of claim 1 , wherein the transvalvular intraannular implant is configured to treat tricuspid valve prolapse.