Patent ID: 7857809

Claim:
An irrigated catheter comprising: a catheter body having proximal and distal ends and at least one lumen extending therethrough; a tip section comprising a segment of flexible tubing having proximal and distal ends and at least two lumens extending therethrough, the proximal end of the tip section being fixedly attached to the distal end of the catheter body; a porous tip electrode fixedly attached to the distal end of the tip section, the tip electrode comprising a main electrode body and a stem, wherein at least the main electrode body comprises a porous material covered in parts by an outer skin to form a pattern on the main electrode body; a first irrigation tube segment having proximal and distal ends extending through the catheter body, the distal end of the irrigation tube being anchored near the proximal end of the tip section; a second irrigation tube segment having proximal and distal ends, the proximal end of the second irrigation tube segment being anchored near the distal end of the tip section and the distal end of the second irrigation tube segment being anchored in the tip electrode, whereby fluid passing through the first and second irrigation tube segments can pass through the porous material of the tip electrode to reach surrounding tissue; and means for energizing the fluid passing through the first and second irrigation tube segments.