Hollow fiber membrane for artificial lung, method for manufacture thereof, and artificial lung using said hollow fiber membrane

摘要

A porous polypropylene hollow fiber membrane of a circular cross section 150 to 300 µm in inside diameter and 10 to 150 µm 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 10to 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.