Patent ID: 6027473
Filing Date: 2000-02-22
Classification: A61B,A61M

Abstract:
A steerable direct myocardial revascularization catheter comprising:a catheter body having an outer wall, proximal and distal ends and at least one lumen extending therethrough;a tip section comprising flexible tubing having proximal and distal ends and at least one off-axis lumen, and optionally at least one additional lumen, therethrough, the proximal end of the tip section being fixedly attached to the distal end of the catheter body;a control handle comprising:a first member fixedly attached to the proximal end of the catheter body;a second member being movably attached to the first member; anda first guide tube extending through the control handle from the proximal end to the distal end of the control handle, said first guide tube being fixedly attached to one of the first or second members;an optic fiber having a distal end and a proximal end, said optic fiber extending through and afforded lengthwise movement through the first guide tube in the control handle, one of the at least one lumens in the catheter body and one of the at least one lumens in the tip section, said distal end of the optic fiber being substantially flush with the distal end of the tip section; anda puller wire extending from the control handle through one of the at least one lumens in the catheter body and into one of the at least one off axis lumens in the catheter tip section, the distal end of the puller wire being anchored to the tip section at a location along the length of the tip section and the proximal end of the puller wire being anchored to the second member of the control handle, whereby proximal movement of the second handle member relative to the catheter body results in deflection of the tip section.