Hemodiafiltration system

Details Hemodiafiltration system Hemodiafiltration system

1990-06-07

1991-04-30

Jones, W. Gary

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210110, 210134, 210137, 21032165, 21032169, 2103218, 210646, 210741, 210929, B01D 6124, B01D 6128, B01D 6132, B01D 6302

Patent

active

050116070

ABSTRACT:
A hemodiafiltration system which enables concurrent performance, in a single system, of hemodialysis and hemofiltration includes a dialyzer, consisting of a casing and at least one semipermeable membrane accommodated therein for dialyzing and purifying body fluid such as blood, plasma, etc., through contacting of the body fluid and dialyzate via the semipermeable membrane, and pumps for causing the dialyzate to flow through the dialyzer. A controller repeatedly changes the difference between the inflow amount of the dialyzate into the dialyzer per unit time and the outflow amount of the same from the dialyzer per unit time from a positive value to a negative value and then from negative to positive, whereby the repeated operation of taking or sucking out aqueous component or constituent and accompanying waste molecules from the body fluid followed by infusing or forcing a compensatory amount of dialyzate into the body fluid is made possible.

REFERENCES:
patent: 3570672 (1971-03-01), Bach
patent: 3795318 (1974-03-01), Crane et al.
patent: 4096059 (1978-06-01), Pinkerton
patent: 4222869 (1980-09-01), Kato

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