Electrophysiology catheter design

A medical device comprising:

• an elongate body defining a distal portion including a distal tip, a proximal portion, and a longitudinal axis;
• and
• an electrode affixed to the distal portion of the elongate body, the electrode extending at least 360° around the longitudinal axis and being located distal to the distal tip, the electrode including:
• a circumference;
• a plurality of first regions, each of the plurality of first regions being one of selectively conductive and electrically insulated but thermally conductive;
• a plurality of second regions alternating with the plurality of first regions, each of the plurality of second regions being fully electrically conductive;
• and
• at least one prominent element protruding from the circumference of the electrode, the at least one prominent element being in at least one of the plurality of second regions.

A medical system, the medical system comprising:

• a medical device including:
• an elongate body defining a distal portion including a distal tip, a proximal portion, and a longitudinal axis;
• and
• a hypotube electrode affixed to the distal portion of the elongate body, the hypotube electrode extending at least 360° around the longitudinal axis and being located distal to the distal tip, the hypotube electrode having:
• a circumference;
• a plurality of first regions, each of the plurality of first regions being one of selectively conductive and electrically insulated but thermally conductive;
• and
• a plurality of second regions alternating with the plurality of first regions, each of the plurality of second regions being fully electrically conductive;
• and
• a coolant source in fluid communication with the hypotube electrode.