Patent ID: 8734440

Claim:
A catheter comprising: a flexible tubing having a proximal end and a distal end; an electrode assembly attached to the distal end of the flexible tubing, the electrode assembly including an electrically conductive tip electrode; a coupler connected between the tip electrode and the distal end of the flexible tubing, the coupler and the tip electrode being coupled by an interlocking connection having a first end coupled to the tip electrode and a second end, the coupler connected to the distal and of the flexible tubing; a first magnet partially press fit in the second end of the interlocking connection of the coupler such that one end of the first magnet extends out of the coupler; a fluid lumen extending through the flexible tubing to the coupler, the fluid lumen extending completely through the first magnet and connecting to at least one port formed in the electrode assembly; and a second magnet spaced from the electrode assembly along a longitudinal axis of the tubing; wherein the first magnet and the second magnet are responsive to an external magnetic field to selectively position and guide the electrode assembly within a body of a patient.