Methods and apparatuses for manipulating an elongated flexible shaft of a catheter provide case and reliability of positioning electrodes against or near tissue. Dual-bend flexible distal tips (30) may be used in combination with flat wires. In some embodiments, flat wires which are free to rotate upon...http://www.google.de/patents/US8007462?utm_source=gb-gplus-sharePatent US8007462 - Articulated catheter
