Patent ID: 7285119
Filing Date: 2007-10-23
Classification: A61B

Abstract:
1. 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 and terminated by a distal end of the catheter body, the distal portion forming a coil about a central loop axis, the central loop axis substantially parallel to the longitudinal axis, an ablation section formed along the coil, wherein the segment, the distal segment being more flexible than the proximal segment such that the distal portion more easily deflects relative to the proximal segment, a first lumen extending through the proximal portion and the intermediate portion to the distal portion and terminated at an opening proximal to the ablation section; a second lumen extending through a proximal portion of a catheter body and an intermediate portion of the catheter body and terminating at a closed end distal to the ablation section; and an ablation electrode formed within the ablation section; wherein, when the ablation electrode is activated, a lesion is formed in tissue contacting the ablation section.