A system for modifying a heart valve annulus includes a helically helical anchored annuloplasty device delivered to the annulus via an elongated delivery member. The helical anchors of the devices disclosed herein are rotated into the valve annulus along an anchor guide by using a driver that is movably...http://www.google.de/patents/US20070244555?utm_source=gb-gplus-sharePatent US20070244555 - Annuloplasty Device Having a Helical Anchor and Methods for its Use
