The LifeVest® division of ZOLL Medical Corporation is dedicated to developing the LifeVest wearable cardioverter defibrillator (WCD) and associated technologies. The LifeVest WCD is worn by patients at risk for sudden cardiac death. LifeVest is designed to continuously monitor a patient’s heart, detect life-threatening rapid heart rhythms, and automatically deliver a treatment shock to restore normal heart rhythm.

The device was FDA approved in 2001 and is currently available in the United States, Europe, Japan, and several other countries worldwide. On any given day, tens of thousands of people around the world have protection from sudden cardiac death by wearing LifeVest.

In 2006, the LifeVest business became a part of ZOLL Medical Corporation, which was acquired by Asahi Kasei in 2012. ZOLL develops and markets medical devices and software solutions that help advance emergency care and save lives, while increasing clinical and operational efficiencies. With products for defibrillation and monitoring, circulation and CPR feedback, data management, therapeutic temperature management, and ventilation, ZOLL provides a comprehensive set of technologies that help clinicians, EMS and fire professionals, and lay rescuers treat victims needing resuscitation and acute critical care.