Ventricular defibrillator

Claim 1

FOR USE IN A CARDIAC DEFIBRILLATOR HAVING A PLURALITY OF CONDENSERS AND A SOURCE OF ELECTRICAL ENERGY FOR CHARGING THE CONDENSERS AND A PAIR OF ELECTRODES ADAPTED TO BE APPLIED TO THE BODY OF A PATIENT, SWITCH MEANS FOR SERIALLY DISCHARGING THE CONDENSERS THROUGH THE ELECTRODES AND THE PATIENT''S BODY, SAID SWITCH MEANS COMPRISING: A MOVABLE ELECTRICAL CONTACT ADAPTED TO MOVE FROM A COCKED POSITION TO AN UNCOCKED POSITION, A PLURALITY OF FIXED ELECTRICAL CONTACTS DISPOSED IN THE PATH OF MOVEMENT TO THE MOVABLE CONTACT AND ADAPTED TO BE SUCCESSIVELY AND MOMENTARILY ENGAGED BY THE MOVABLE CONTACT WHEN MOVING FROM ITS COCKED TO ITS UNCOCKED POSITION, EACH OF THE FIXED CONTACTS WHEN SO ENGAGED CONNECTING THROUGH THE MOVABLE CONTACT A SEPARATE CONDENSER ACROSS THE ELECTRODES, MEANS FOR RAPIDLY MOVING THE MOVABLE CONTACT FROM ITS COCKED TO ITS UNCOCKED POSITION, A RELEASABLE LATCH FOR HOLDING THE MOVABLE CONTACT IN ITS COCKED POSITION, AND MEANS FOR RELEASING THE LATCH THAT ARE OPERATIVE SOLELY IN RESPONSE TO A PREDETERMINED PRESSURE OF BOTH ELECTRODES AGAINST THE BODY OF THE PATIENT.