Patent ID: 7099717
Filing Date: 2006-08-29
Classification: A61B

Abstract:
1. A catheter system for ablating biological tissue at a target tissue site, comprising: an elongated body member having a proximal end and a flexible tubular distal portion and having at least one straight lumen passing therethrough; a handle portion operably attached to the proximal end of the elongated body member; an ablation device disposed in the flexible tubular distal portion of the body member and including at least one ablation element adapted to emit ablative energy therefrom; and a pull wire slidably disposed within said at least one lumen and slidably attached to the inner wall of said at least one lumen near the proximal end at a first angular position with respect to the longitudinal axis of the elongated body member and fixedly attached to the inner wall of said at least one lumen near the distal end of the flexible tubular distal portion at a second different angular position with respect to the longitudinal axis of the elongated body member for deflecting the flexible tubular distal portion in response to tension on the pull wire to position the ablation device in the deflected flexible tubular distal portion proximate and parallel to a surface of the target tissue site for effecting tissue ablation.