MEMBRANE BLOOD OXYGENATOR

摘要

A membrane blood oxygenator (12) having means for automatically maintaining the total pressure of the oxygenating gas near yet below that of the blood across the membrane. This includes a valve (17) for restricting the flow of oxygenating gas exiting the oxygenator with the pressure of the blood exiting the oxygenator. A tubing communicates (76) the pressure of the exiting blood to the valve to activate the valve.