1. The pneumomassage of the heart;Bencini;Surgery,1956
2. Prolonged circulatory support by direct mechanical ventricular assistance;Anstadt;Trans Amer Soc Artif Intern Organs,1966
3. Biventricular cardiac assistance energized by suction actuated recoil of a single constricting rubber ventricle;Kolobow;Trans Amer Soc Artif Intern Organs,1965
4. Maintenance of the circulation in cardiac asystole by the mechanical pulsator;Zajtchuk;Trans Amer Soc Artif Intern Organs,1966
5. Long-term maintenance of total or assisted cardiac function by means of intracorporeal cardiac compressor;Rassman;Trans Amer Soc Artif Intern Organs,1967