Oxygenator with oxygenator hollow fiber membrane, its manufacturing method and a hollow fiber membrane

摘要

A porous polypropylene hollow fiber membrane of a circular cross section 150 to 300 mu m in inside diameter and 10 to 150 mu m in wall thickness for use in an artificial lung, which hollow fiber membrane is characterized by having an inner surface aperture ratio in the range of 10 to 30%, a porosity in the range of 10 to 60%, and an oxygen flux in the range of 100 to 1,000 liters/min.m2.atm. and inducing no leakage of blood plasma within 20 hours use in the external circulation of blood therethrough.