Patent ID: 6210407
Filing Date: 2001-04-03
Classification: A61B,A61M

Abstract:
A bi-directional catheter comprising:an elongated catheter body having proximal and distal ends and at least one lumen therethrough;a catheter tip section at the distal end of the catheter body comprising a flexible tubing having proximal and distal ends and first and second diametrically-opposed off-axis lumens, wherein the first off-axis lumen is smaller than the second off-axis lumen, and wherein the diameter of the tip section is no greater than 61/2 French;a control handle at the proximal end of the catheter body, the control handle comprising at least two moveable members longitudinally movable between first and second positions;first and second puller wires, each puller wire having proximal and distal ends, the proximal end of each puller wire being connected to an associated movable member of the control handle, and each puller wire extending from the control handle through a lumen of the catheter body, wherein the first puller wire extends into the first lumen in the tip section and the second puller wire extends into the second lumen in the tip section, and wherein the distal end of each puller wire is anchored to the tip section;an electrode mounted on the tip section;a lead wire having a distal end electrically connected to the electrode, the lead wire extending through the second lumen in the tip section, through a lumen in the catheter body and through the control handle;wherein proximal movement of a movable member relative to the catheter body results in proximal movement of the puller wire associated with that movable member relative to the catheter body, and thus deflection of the tip section in the direction of the off-axis lumen in which that puller wire extends.