Method and apparatus for reshaping a ventricle

摘要

Methods are provided for reshaping the left ventricle to a more conical shape to counter the effects of dilation, thereby improving pumping efficiency. In an exemplary embodiment, a reshaping apparatus comprises an implantable body that can be delivered to a dilated left ventricle via the patient's vasculature in a minimally-invasive procedure. When deployed inside the left ventricle, the implantable body applies a longitudinal (downward) force against the inner surface of the left ventricle, thereby causing the left ventricle to distend or elongate downwardly. The implantable body preferably includes an anchor which is deployed adjacent the mitral valve for maintaining the longitudinal force against the inner surface of the left ventricle.

主权项

1. A method of improving the function of a patient's heart, comprising:
delivering an implantable body into a left ventricle by a delivery catheter; the implantable body comprising an anchor coupled to an elongate pusher member; applying a force at the base of the left ventricle by causing the elongate pusher member to push against an inner wall of the left ventricle; deploying the anchor adjacent a mitral valve for securing the elongate pusher member in the left ventricle and removing the delivery catheter from the heart while leaving the implantable body in the left ventricle; wherein the pusher member reshapes the left ventricle by permanently elongating the left ventricle in a longitudinal direction for improving the pumping efficiency of the patient's heart.