Angeion designs, develops, manufactures and markets products that treat irregular heartbeats (arrhythmias). The Company has developed several ICDs. ICDs are designed to treat abnormally rapid heartbeats in the ventricular (or lower) chambers of the heart, a condition known as ventricular tachycardia (VT), and a severe form of VT known as ventricular fibrillation (VF), which, if not terminated, will lead to sudden cardiac death (SCD). ICDs are electronic devices that are implanted within the body and are connected to the heart with defibrillator leads. These devices monitor the patient's heartbeat and, in the event of VT or VF, deliver an electrical shock to return the heartbeat to normal rhythm.