Blood oxygenator using a hollow fiber membrane.

摘要

The present invention provides a blood oxygenator comprising a housing (8) generally in the form of a box and bundles of hollow fibers (7) of semi-permeable membrane set therein for effecting gas exchange therethrough. In this blood oxygenator, each end of each bundle of hollow fibers (7) of semipermeable membrane is secured together by means of a potting material (14) in such a way as to allow their open ends to communicate separately with a gas inlet (10) and a gas outlet (13); the space around the bundles of hollow fibers (7) of semipermeable membrane communicates with a blood inlet (1) and a blood outlet (4); the blood-gas contact chamber (6) within the housing (8) is divided into a plurality of compartments with the interposition of blood flow channels (9) narrowed by baffles (5); and the bundle of hollow fibers (7) of semipermeable membrane is disposed in the contact chamber (6) so as to be substantially parallel to the baffles (5).