MINNEAPOLIS--(BUSINESS WIRE)--May 22, 2006--Building on the clinically-proven effectiveness of radio frequency (RF) in treating men with the bothersome urinary symptoms of an enlarged prostate gland, Medtronic, Inc. (NYSE:MDT - News), today announced commercial release of the new PROSTIVA(TM) RF Therapy system for the treatment of symptomatic benign prostatic hyperplasia (BPH).