Steerable catheter that has fluid transfer capability is provided. The catheter includes an elongate flexible shaft having a proximal end and a distal end, an operative element carried at the distal end of the shaft, and a medium conveying conduit carried within the elongate shaft, the conduit having...http://www.google.fr/patents/US7938828?utm_source=gb-gplus-shareBrevet US7938828 - Cooled ablation catheter
