Dual membrane mass transfer device

Details Dual membrane mass transfer device Dual membrane mass transfer device

1978-10-12

1980-11-18

Hart, Charles N.

Liquid purification or separation

Casing divided by membrane into sections having inlet

Energy recovery from treated liquid

210314, 210346, 210433M, 210486, B01D 3100

Patent

active

042344280

ABSTRACT:
A hemodialysis apparatus is provided in which two blood compartments are formed by two different types of membranes. One membrane is a relatively high flux membrane, with relatively high hydraulic permeability, and the other membrane is a relatively low flux hemodialysis membrane. The blood compartment associated with the high flux membrane will be separated from the blood compartment associated with the low flux membrane. In use, dialyzing solution flows through only a dialysate compartment adjacent to the low flux membrane to accomplish diffusion at low transmembrane pressures. No dialyzing fluid perfuses the compartment adjacent the high flux membrane, but high transmembrane pressures draw ultra-diffusate into this compartment for collection and measurement of fluid loss in the patient.

REFERENCES:
patent: 3362540 (1968-01-01), Bluemle
patent: 3579441 (1971-05-01), Brown
patent: 3591493 (1968-06-01), Zeineh
patent: 3707234 (1972-12-01), Salemi
patent: 3734851 (1973-05-01), Matsumura
patent: 3783127 (1974-01-01), Cook et al.
patent: 3962075 (1976-06-01), Fialkoff et al.
patent: 4016081 (1977-04-01), Martinez et al.
patent: 4024059 (1977-05-01), Sausse

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