World Heart Corporation, together with its subsidiaries, focuses on the development and commercialization of implantable ventricular assist devices (VADs) primarily in the United States. The VADs are mechanical assist devices that supplement the circulatory function of the heart by re-routing blood flow through a mechanical pump allowing for the restoration of normal blood circulation for the treatment of patients with severe heart failure. The companys products in development include Levacor, a rotary blood pump, for a range of circulatory support indications; Minimally Invasive VAD, a miniature maglev rotary pump, which provides circulatory support in adult patients in an earlier stage of heart failure, as well as late-stage heart failure patients; and Pediatric VAD, an axial rotary VAD, for use in newborns and infants. World Heart Corporation was founded in 1996 and is headquartered in Salt Lake City, Utah.