Liquid purification or separation – Flow – fluid pressure or material level – responsive – Maintaining stream pressure or flow
Patent
1974-12-04
1976-10-19
Spear, Jr., Frank A.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Maintaining stream pressure or flow
210321B, B01D 3100, B01D 1300
Patent
active
039869563
ABSTRACT:
An artificial kidney device is provided with a dialyzer for separating specified components from blood. A double walled tube is mounted midway of a tube provided for transporting the blood passed through the dialyzer into a vein of a human being, so as to automatically maintain an ultrafiltration pressure substantially constant. The double-tube wall consists of a flexible inner tube and a non-flexible outer tube and is adapted to automatically collapse or inflate the inner tube in response to a change in pressure prevailing within the dialyzer, by applying a predetermined pressure to a closed chamber defined between the inner tube and the outer tube.
REFERENCES:
patent: 2590215 (1952-03-01), Sausa
patent: 2766765 (1956-10-01), Bolanowski et al.
patent: 2904063 (1959-09-01), Wall et al.
patent: 3228397 (1966-01-01), Moss
patent: R26006 (1966-04-01), Gewecke
Spear, Jr. Frank A.
Tokyo Shibaura Electric Co. Ltd.
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