Split tip electrode catheter

A split tip electrode comprising:

• a composite tip electrode having a distal section comprising an external surface and proximal and distal ends and a proximal section that forms a recessed stem, said composite tip electrode comprising a plurality of electrode members electrically isolated from each other;
• and
• a securing electrode spaced proximally from the proximal end of the distal section of the composite electrode, said securing electrode comprising a generally cylindrical side wall that forms a ring electrode and a hollow interior that receives and fixedly secures at least a portion of the stem of the composite electrode, said securing electrode being electrically isolated from the composite tip electrode.

A split tip electrode comprising:

• a composite tip electrode having a distal section comprising an external surface and proximal and distal ends and a proximal section that forms a recessed stem, said composite tip electrode comprising a plurality of electrode members electrically isolated from each other;
• and
• a cup electrode spaced proximally from the proximal end of the distal section of the composite electrode, said cup electrode comprising a generally cylindrical side wall having proximal and distal ends that forms a ring electrode, a base wall fixedly attached to the proximal end of the side wall, and a hollow interior formed by the side and base walls that receives and fixedly secures at least a portion of the stem of the composite electrode, said cup electrode being electrically isolated from the composite tip electrode.