An RF activated catheter apparatus for performing transmyocardial revascularization. The catheter apparatus including an elongate catheter shaft having proximal and distal ends, the distal end including an RF emitter which is coupled to an RF generator for cutting channels into the myocardium of a patient's...http://www.google.com/patents/US5944716?utm_source=gb-gplus-sharePatent US5944716 - Radio frequency transmyocardial revascularization corer
