Patent ID: 6662034
Filing Date: 2003-12-09
Classification: A61B,A61M

Abstract:
An electrophysiology catheter having a proximal end and a distal end, at least one electrode adjacent the distal end, a lead wire extending proximally from the at least one electrode, a magnetically responsive element in the distal end portion of the catheter, the catheter having at least two sections of different flexibility, each section being more flexible than the next most proximal section so that the flexibility of the catheter increases from the proximal end to the distal end, wherein the at least one electrode includes an end electrode having a plurality of longitudinally extending grooves, and further comprising an external sleeve defining an annular space terminating at the end electrode, the grooves in the end electrode and the sleeve defining a plurality of channels for ejecting irrigating fluid conducted in the annular space.