Patent ID: 7853302
Filing Date: 2010-12-14
Classification: A61B

Abstract:
1. A mapping catheter comprising: an elongated tubular proximal shaft having an outer wall and proximal and distal ends; a distal shaft having proximal and distal ends, the proximal end of the distal shaft being attached to the distal end of the proximal shaft; a mapping assembly at the distal end of the distal shaft, the mapping assembly comprising: a control handle mounted at the proximal end of the proximal shaft; and a contraction wire extending through the proximal shaft 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 extends through a plastic tube and is positioned on the side of the generally circular main region closer to the center of the generally circular region.