A Portable Defibrillator

A portable electric defibrillator has been designed, capable of being operated from 115 volts a-c or from 6-or 12-volt storage or dry batteries. Features have been incorporated to insure safety, to both the operator and the victim. Prototypes of this type of equipment have been tested extensively on animals, . and have been used successfully on six human victims of ventricular fibrillation in the hospital. The defibrillator discussed here has been successfully employed once.