ST. PAUL, Minn. & TOKYO--(BUSINESS WIRE)--St. Jude Medical, Inc. (NYSE:STJ), a global medical device company, today announced the Japanese launch of the Unify Quadra™ cardiac resynchronization therapy defibrillator (CRT-D). The Unify Quadra CRT-D works with the company’s first-to-market Quartet™ left ventricular pacing lead to offer a small quadripolar pacing system that helps physicians effectively and efficiently manage the common challenges of patients with heart failure.