| abstract | - It then shows a lung in a tray, operated by bellows, oxygenating blood. Following the lung scene we are shown the operation of a primitive heart-lung machine, the autojektor (or autojector), composed of a pair of diaphragm linear pumps and what appears to be an oxygen bubble chamber. We then see it is supplying a canine head with oxygenated blood. The head is shown to respond to external stimuli, but the film does not show the arterial and venal connections to the head. Finally, a dog is brought to clinical death (mostly via a graphical plot of lung and heart activity) by draining all blood from it, left for ten minutes, then connected to the heart-lung machine described earlier. After several minutes, the heart fibrillates, then restarts a normal rhythm. Respiration likewise resumes, the machine is removed and the dog is shown to continue living a healthy life.
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