Brochure for Dow Corning Antifoam A Spray

Brochure for Dow Corning Antifoam A Spray

Open Heart Surgery

<p>Antifoam A, a substance made by the Dow Corning Corporation, was used in the operation of the DeWall Bubble Oxygenator. The substance, when coated along the walls of the debubbling chamber of the oxygenator unit, helped to dissipate bubbles introduced into the chamber to oxygenate blood.</p>
<p><em>Description of the DeWall Bubble Oxygenator</em>: Using a Sigmamotor pump, blood was transported via plastic tubing through the oxygenator unit which consisted of a vertical mixing chamber, a debubbling chamber, and a helix coil. Venous blood taken from a patient's major artery was pumped through the tubing and into the mixing chamber where oxygen was introduced into the blood by the addition of bubbles. The bubbles rose to the top of the chamber and spilled over into a debubbling chamber where any remaining bubbles were dispersed before the freshly oxygenated blood was returned to the patient.</p>

Dow Corning Corporation

"Dow Corning, 1955-1965," Box 92, C. Walton Lillehei papers, uarc2000-7, University of Minnesota Archives

University of Minnesota

1955

C. Walton Lillehei

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eng

oh0159

Open Heart Surgery

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