Gas-exchange membrane for an artificial lung

Details Gas-exchange membrane for an artificial lung Gas-exchange membrane for an artificial lung

1989-03-27

1990-03-20

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Blood treating device for transfusible blood

Oxygenator

21050024, 21050027, 21032162, 55 16, 55158, 128DIG3, 261DIG28, A61M 114

Patent

active

049099892

ABSTRACT:
In a membrane type artificial lung using as gas-exchange membranes porous hydrophobic membranes having a wall thickness in the range of 5 to 80 .mu.m, a porosity in the range of 20 to 80%, and a pore diameter in the range of 0.01 to 5 .mu.m, the minute pores of the membranes are blocked with minute particles of silica having a diameter smaller than the pore diameter and having a hydrophobic surface at least on the sides thereof intended for exposure to blood. Optionally, the gas-exchange membranes have the surfaces for exposure to blood coated with a biocompatible hydrophobic resin.

REFERENCES:
patent: 4093515 (1978-06-01), Kolobow
patent: 4239729 (1980-12-01), Hasegawa et al.
patent: 4374802 (1983-02-01), Fukasawa
patent: 4619897 (1986-10-01), Hato et al.

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