Patent ID: 8133286

Claim:
A method of producing an apparatus for use in a patient, comprising: constructing a single defibrillation capacitor, including: etching an anode foil; anodizing the anode foil and forming a dielectric to a thickness greater than 455 nanometers; assembling the anode foil, at least one cathode foil and one or more separators into a capacitor stack adapted to store at least 30 joules at an energy density of about 5.3 joules per cubic centimeter of capacitor stack volume to about 6.3 joules per cubic centimeter of capacitor stack volume, with the capacitor adapted to deliver maximum energy for a defibrillation pulse at a voltage of between about 465 volts to about 620 volts; inserting the stack into a capacitor case; inserting the single defibrillation capacitor into a device housing for implant in a patient; connecting the single defibrillation capacitor to an electrical component for providing a defibrillation pulse using energy from the single defibrillation capacitor; and sealing the device housing.