A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/81.3
A61M 5/00 (2006.01)
Patent
CA 1050846
ABSTRACT OF THE DISCLOSURE Disclosed is a bubble oxygenator which includes a housing; an oxygenating chamber extending uprightly in the housing and has means for supplying venous blood to the oxygenating chamber and means for supplying respiratory gas to the oxygenating chamber to form bubbles of respiratory gas from the venous blood. A reservoir for arterial blood is provided in the lower portion of the housing and has an outlet for passing the arterial blood to a patient. A debubbling device is offset laterally from the upper end portion of the oxygenating chamber to receive blood bubbles from the oxygenating chamber and to convert the bubbles into liquid arterial blood to be passed to the reservoir. The debubbling device is formed of a thickness of biocompatible material coated with an antifoaming agent to defoam the blood and it is shaped to provide a circumferential sidewall closed at one end by an end wall to afford an inner bubble collection chamber having a bubble inlet communicating with the upper end portion of the oxygenating chamber, the material having a plurality of tortuous flow channels through the circumferential sidewall to pass the liquid arterial blood by gravity flow to the reservoir.
280788
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