Implantable defibrillators are implanted into the chests of patients prone to suffering ventricular fibrillation, a potentially fatal heart condition. A critical component in these devices is an aluminum electrolytic capacitors, which stores and delivers one or more life-saving bursts of electric charge...http://www.google.de/patents/US6275729?utm_source=gb-gplus-sharePatent US6275729 - Smaller electrolytic capacitors for implantable defibrillators
