A method and system for lysing a patient's heart tissue causing or involved with arrhythmia which includes an intravascular catheter with a relatively inelastic occlusion balloon on the distal end of the catheter which is inflated to block an artery or vein of the patient's heart so than when lysing...http://www.google.co.uk/patents/US5947952?utm_source=gb-gplus-sharePatent US5947952 - Intraluminal delivery of tissue lysing medium
