Hollow fiber ultradialyzer apparatus

Liquid purification or separation – Casing divided by membrane into sections having inlet – Energy recovery from treated liquid

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Details

21032178, 21032179, 2103218, 21032187, 21032188, 21032189, 210434, 21050023, B01D 6302, B01D 6118, B01D 6128, B01D 6304

Patent

active

059421126

ABSTRACT:
A single housing dual compartment hollow fiber membrane dialyzer for hemodialysis is provided having two coaxially oriented hollow fiber membrane bundles encased within the housing. One of the two compartments within the housing is filled with dialysate. The relative orientations of the membranes and the dialysate simultaneously maximize diffusion, convection and ultrafiltration of fluids, solutes and molecules. During dialyzation, these membranes first separate the blood cells and proteins from the plasma with its toxin solutes and smaller molecules. Then, each blood component is dialyzed separately. Finally, the two components are recombined before being returned to the patient. Since the plasma is not discarded, the need for replacement fluid is substantially reduced or in some cases eliminated.

REFERENCES:
patent: 4289623 (1981-09-01), Lee
patent: 4451369 (1984-05-01), Sekino et al.
patent: 4657743 (1987-04-01), Kanno
patent: 5015388 (1991-05-01), Pusineri et al.

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