Abstract
We clarified gas tansport in inside and outside blood flow oxygenators with and without pulsatile flow pump from the standpoint of boundary layer resistance. Pulsatile flow is of Beat 60 cycle/min and Duratlon 60%. Blood flow rate of inside blood flow oxygenator ranged from 1.0 to 4.0l/mln, while that of outside blood flow oxygenator ranged from 1.5 to 6.7l/min. Pulsatile flow is superior to nonpulsatile flow in gas exchange efficfency because of marked differences in the destruction of boundary layer resistance. We examined differences in gas exchange efficiency at the inner position of the module. The outer position of the module is superior to the inner position in gas exchange efficiency.
