抄録
Gas transfer performance of Kolobow membrane oxygenator was evaluated at 20°C and 25°C using a testing and evaluation method which was previously reported from our laboratory. Gas transfer characteristics were summerized as follows.
1. Both oxygen and carbon dioxide transfer rate were decreased as blood flow rate was increased.
2. Both oxygen and carbon dioxide transfer rate were increased as gas blood flow ratio (V/Q) was increased. The oxygen transfer rate was slightly low when V/Q was below 0.5 and approached to the constant value when V/Q was above 0.5. The carbon dioxide transfer rate was increased linealy below the V/Q of 2.0 and approached to the constant value above the V/Q of 2.0.
3. During hypothermia the oxygen transfer rate was improved but the carbon dioxide transfer rate was lowered compared with those during normothermia. And the optimum V/Q at 20°C was also discussed.
