Patent ID: 6623473
Filing Date: 2003-09-23
Classification: A61B,A61M

Abstract:
An injection catheter having proximal and distal ends comprising:a catheter body comprising a flexible tubing having proximal and distal ends and at least one lumen therethrough; a tip electrode mounted at the distal end of the catheter; needle control handle at the proximal end of the catheter body; an injection needle having an open distal end and a distal region having at least one fluid port along its length, the injection needle extending through each of the needle control handle and the catheter body and having a proximal end attached to the needle control handle, wherein the injection needle is moveable between a retracted position and an extended position by suitable manipulation of the needle control handle, such that in the extended position, the distal region of the needle extends beyond an opening in the distal end of the catheter, wherein a fluid tight seal is provided around the needle at the opening in the distal end of the catheter; whereby, in use, fluid passes out of the injection needle through both the open distal end of the needle and the at least one fluid port along the length of the distal region of the needle.