Patent ID: 6899711

Claim:
A catheter assembly comprising: a catheter body including a proximal portion, an intermediate portion extending from the proximal portion, the intermediate portion defining a longitudinal axis, and a distal portion extending from the intermediate portion, the distal portion forming a loop including one or more segments formed around a central loop axis, the one or more loop segments including at least one ablation electrode coupled thereto and the central loop axis substantially parallel with the longitudinal axis; a locating device including a shaft, the shaft including a distal end and a tip formed along the distal end; and a sheath engaging the catheter body and the locating device, the catheter body and the locating device slidable within the sheath between a retracted position and a deployed position; wherein, the at least one ablation electrode is adapted to create a lesion, the lesion electrically isolating a vessel from a chamber for treatment of a cardiac arrhythmia; and when the distal portion of the catheter body and the locating device are deployed, the tip of the shaft of the locating device is positioned distal to the loop of the distal portion of the catheter body and substantially parallel with the, central loop axis.