Heartware International, Inc. is a medical device company. The Company develops and manufactures miniaturized implantable heart pumps or ventricular assist devices to treat patients suffering from advanced heart failure. The Company operates in the segment of design and manufacture of medical devices. The HeartWare Ventricular Assist System (HVAD System), which includes a ventricular assist device (VAD) or blood pump, patient accessories and surgical tools, provides circulatory support for patients in the advanced stage of heart failure. The HVAD System is designed to be implanted adjacent to the heart, avoiding abdominal surgery. The HVAD System features the centrifugal pump designed to be implanted in the chest, directly adjacent to the heart. It develops MVAD System, a miniaturized device. The CircuLite Surgical System is designed to be implanted through a right, mini-thoracotomy procedure and does not require a sternotomy or cardiopulmonary bypass.