Basket for a multi-electrode array catheter

An electrophysiology catheter, comprising:

• an elongate, deformable shaft comprising a proximal end and a distal end;
• and,
• a basket electrode assembly coupled to said distal end of said shaft, said basket electrode assembly comprising a proximal end and a distal end and configured to assume a compressed state and an expanded state and including:
• a plurality of first splines, each of said plurality of first splines configured to assume a shape other than a helical shape in said expanded state;
• and,
• a second spline, said second spline comprising an electrode disposed thereon and configured to assume a helical shape in said expanded state,
• wherein said second spline is coupled to the proximal end and the distal end of the basket electrode assembly, and
• wherein said plurality of first splines and said second spline are self-supporting.

An electrophysiology catheter, comprising:

• an elongate, deformable shaft comprising a proximal end and a distal end;
• and,
• a basket electrode assembly coupled to said distal end of said shaft, said basket electrode assembly comprising a proximal end and a distal end and a central longitudinal axis and configured to assume a compressed state and an expanded state and including:
• a first spline, said first spline comprising an electrode disposed thereon and comprising a first maximum radius relative to said axis in said expanded state;
• and,
• a second spline, said second spline comprising an electrode disposed thereon and comprising a second maximum radius relative to said axis in said expanded state, said second maximum radius different than said first maximum radius,
• wherein said first spline and said second spline are each coupled to the proximal end and the distal end of the basket electrode assembly and are each independently supported.