Hemodialysis ultrafiltration system

Details Hemodialysis ultrafiltration system Hemodialysis ultrafiltration system

1975-10-15

1977-05-03

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210103, 210321B, B01D 3100, B01D 1300

Patent

active

040213412

ABSTRACT:
An improved hemodialysis ultrafiltration system. Dialysate input and output pumps are linked to maintain their volume flows substantially equal. A pressure attenuator and a pressure amplifier on the dialyzer dialysate inlet and outlet, respectively, are employed to control dialyzer pressure on the dialysate side. Dialysate output in excess of dialysate input is separated through the action of the dialysate output pump for measurement. The ultrafiltration rate may be controlled through the pressure transformers and the instantaneous ultrafiltration rate and total ultrafiltration volume may be continuously monitored.

REFERENCES:
patent: 3669880 (1972-06-01), Marantz et al.
patent: 3844940 (1974-10-01), Kopf et al.
patent: 3939069 (1976-02-01), Granger et al.

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