In one embodiment, the present invention relates to a tissue shaping device adapted to be disposed in a vessel near a patient's heart to reshape the patient's heart. Such tissue shaping device can include an expandable proximal anchor; a proximal anchor lock adapted to lock the proximal anchor in an...http://www.google.co.uk/patents/US20060167544?utm_source=gb-gplus-sharePatent US20060167544 - Tissue Shaping Device
