Pendulum type of artificial heart within the chest: Preliminary report

摘要: Abstract In an artificial heart the right and left ventricles need not contract simultaneously. A pendulum type of mechanical is described in which a small motor swings on pivots within rigid housing, compressing each ventricle alternately. The output may be as high 1,800 ml. per minute, directly related to atrial pressure. hemolysis acceptably low. With one these pumps anesthetized dog maintained blood pressure, spontaneous respiration, corneal, wink, tendon reflexes for 5 hours. While sustained animal's circulation, following mean pressures were recorded: aorta, 150; pulmonary artery, 25; atrium, 5; 17 mm. Hg.