Patent ID: 7142903
Filing Date: 2006-11-28
Classification: A61B

Abstract:
1. A mapping catheter comprising: an elongated tubular catheter body having an outer wall and proximal and distal ends; a mapping assembly at the distal end of the catheter body, the mapping assembly comprising: a control handle mounted at the proximal end of the catheter body; and a contraction wire extending through the catheter body and non-conductive cover of the mapping assembly for contracting the generally circular main region of the mapping assembly, the contraction wire having a distal end anchored in the non-conductive cover and a proximal end anchored to a mechanism in the control handle that facilitates longitudinal movement of the contraction wire relative to the catheter body, wherein the portion of the contraction wire extending through the non-conductive cover is positioned on the side of the generally circular main region closer to the center of the generally circular region.