Hollow fiber type oxygenator

Details Hollow fiber type oxygenator Hollow fiber type oxygenator

A - Human Necessities

61

M

128/81

A61M 1/14 (2006.01)

Patent

CA 1254467

ABSTRACT In a hollow fiber type oxygenator comprising a housing, a bundle of a plurality of hollow fibers axially extending through the housing and each presenting a gas-exchange membrane, partitions engaged in the housing at its opposite end portions and retaining the opposite ends of the hollow fibers without blocking the opening of the fibers, a gas inlet and a gas outlet both in fluid communication with the interior space of the hollow fibers, a blood chamber defined by the partitions, the outer surface of the hollow fibers, and the inner surface of the housing, and a blood inlet and a blood outlet located in the housing wall in fluid communication with the blood chamber, the bundle of the hollow fibers has packing density d1 of not more than 30% near the partitions and a packing density d2 of 40 to 50% near an axial mid-point, the ratio of d1/d2 being not more than 0.6.

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