A guide catheter for accessing the coronary sinus ostium has a proximal portion and a distal portion formed into a preformed shape including a curved segment. The preformed shape includes a first arc, a second arc, a third arc, a fourth arc, and a generally straight terminal portion. The preformed shape...http://www.google.fr/patents/US7976531?utm_source=gb-gplus-shareBrevet US7976531 - Coronary sinus lead delivery catheter
