The Lifecor business was acquired by ZOLL Medical Corporation in 2006. LIFECOR, Inc. manufacturers and markets the LifeVest wearable defibrillators for patients with risk of sudden cardiac arrest. The company’s the LifeVest device monitors the patient’s heart, and if the patient goes into a lifethreatening heart rhythm, delivers a shock treatment to restore the patient’s heart to normal rhythm. It rents and sells the wearable defibrillator to hospitals and patients through a network of sales representatives and distributors in the United States and Europe. The company is based in Pittsburgh, Pennsylvania. As of April 10, 2006, LIFECOR, Inc. is a subsidiary of ZOLL Medical Corp.