The methods, devices, and systems are provided for performing endovascular repair of atrioventricular and other cardiac valves in the heart. Regurgitation of an atrioventricular valve, particularly a mitral valve, can be repaired by modifying a tissue structure selected from the valve leaflets, the valve...http://www.google.se/patents/US7704269?utm_source=gb-gplus-sharePatent US7704269 - Methods and apparatus for cardiac valve repair