Hollow fiber membrane type artificial lung

Details Hollow fiber membrane type artificial lung Hollow fiber membrane type artificial lung

1987-08-03

1988-11-01

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Blood treating device for transfusible blood

Oxygenator

128DIG3, 261DIG28, 261122, 2103218, 2103213, 2103214, A61M 114

Patent

active

047818891

ABSTRACT:
A hollow fiber membrane type artificial lung and a method for the manufacture thereof. The artificial lung comprises a housing, a hollow fiber bundle positioned in the housing and formed of a multiplicity of gas-exchange hollow fiber membranes, a first fluid chamber defined by the external surfaces of the hollow fiber membranes and the internal surface of the housing, a first fluid inlet and a first fluid outlet both communicating with the first fluid chamber, partitions supporting in place the opposite ends of the hollow fibers and provided at the inner face of the housing, and a second fluid inlet and a second fluid outlet allowed to communicate with the empty spaces inside the hollow fiber membranes, which artificial lung is characterized by the fact that the hollow fiber membranes are produced by causing porous hollow fiber substrates which have through micropores distributed in the walls thereof to be treated with silicone oil so that the silicone oil will block up said micropores without forming a silicone oil layer on the internal surfaces of the walls of the porous hollow fiber substrates.

REFERENCES:
patent: 3520416 (1968-02-01), Keedwell
patent: 4179380 (1979-12-01), Amicel et al.
patent: 4212744 (1980-07-01), Oota
patent: 4239729 (1980-12-01), Hasegawa et al.
patent: 4319996 (1982-03-01), Vincent et al.
patent: 4374802 (1983-02-01), Fukasawa
Rompps Chemisches Worterbuch, "Silicone", pp. 804-806 (1969) and partial English language translation.
Murphy et al., "Laboratory and Clinical Experience with a Microporous Membrane Oxygenator", Trans. Am. Soc. Artil. Organs, vol. XX, 1974, pp. 278-283.
Akamatsu, Kiyoshi et al., Chemical Abstracts, Jun. 27, 1979, vol. 91, p. No. 43, No. 141845v.
S. Sifniades et al., Hydrometallurgy, Jan. 15, 1981, pp. 201-202, "Recovery of Uranium from Phosphoric Acid by means of Supported Liquid Membranes".

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