Abstract
Summary
1. More oxygen can be introduced into blood per unit volume of film in a vertical revolving cylinder of 18 cm diam. if segments 18 cm long are used than if the segments are 38 cm long. An increase in efficiency of 23% was obtained. 2. Speed of rotation does not, within the ranges of 100 to 250 r.p.m., affect film content or oxygenation in such a vertical revolving cylinder. 3. The vertical revolving cone does not make a good oxygenator but may conceivably be used to collect blood atraumatically from vertical cylinders.
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