Cardiopulmonary resuscitator, defibrillator and monitor

A cardiopulmonary resuscitator and defibrillator comprising in combination:

• a reciprocatable cardiac compressor means for cyclically compressing a patient's chest;
• an external cardiac compressor pad for positioning anterior to the patient's heart, said compressor pad being connected to and actuated by said compressor means for compressing the patient's heart;
• an external electrode disposed on said compressor pad for compression between said compressor pad and the patient's sternum;
• an esophago-pharyngeal airway including first and second tubes extending into the patient's esophagus and pharynx, respectively, and means for sealing said first and second tubes in the patient's esophagus and oral cavity, respectively;
• a means for ventilating the patient's lungs connected to said second tube;
• a first internal electrode disposed on said first tube and positionable posterior to the patient's heart;
• a cardiac defibrillator means connected to said external and internal electrodes for establishing an electric potential therebetween;
• a pressure sensitive switch for sensing pressure applied to the patient's heart by said compressor means, said switch synchronizing said defibrillator means and said compressor means, whereby a defibrillating current is applied to the patient's heart only during a systolic portion of a compression cycle of said compressor means;
• and
• a means for monitoring the electrical activity of the patient's heart connected to said external and internal electrodes.