Method for manufacturing a hollow fiber membrane oxygenator

Details Method for manufacturing a hollow fiber membrane oxygenator Method for manufacturing a hollow fiber membrane oxygenator

1990-02-23

1991-08-06

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Blood treating device for transfusible blood

Oxygenator

261122, 261DIG28, 128DIG3, 55 16, 55158, 21032162, 21032181, 2103219, 21050022, 21050023, 427235, 427352, A61M 114

Patent

active

050376101

ABSTRACT:
A hollow fiber membrane type oxygenator is provided wherein a bundle of a plurality of hollow porous fibers presenting gas exchange membranes axially extends through a housing to define a first flow path for oxygen, a pair of partitions support the opposed open ends of the hollow fibers to isolate the open ends from the first flow path to define a second flow path through the fiber cavities for blood, and the micropores in the hollow fibers are filled with a silicone compound, for example, a RTV silicone rubber or a blend thereof with a silicone oil while the hollow fibers on their side wall are substantially free of a layer of the silicone compound. The oxygenator is manufactured by prefabricating an oxygenator module of the above-mentioned construction, impregnating the hollow fibers with a solution of the silicone compound, and passing a cleaning liquid to remove excessive silicone compound, thereby filling only the micropores with the silicone compound.

REFERENCES:
patent: 4239729 (1980-12-01), Hasegawa et al.
patent: 4374802 (1983-02-01), Fukasawa
patent: 4588407 (1986-05-01), Isono et al.

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