Artificial haemodialysis kidneys

Details Artificial haemodialysis kidneys Artificial haemodialysis kidneys

1975-03-21

1976-09-07

Spear, Jr., Frank A.

Liquid purification or separation

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

Responsive to fluid flow

210321B, B01D 3100, B01D 1300

Patent

active

039792846

ABSTRACT:
An artificial haemodialysing kidney and method of operation in which the haemodialyser has one chamber connectable to a blood stream and another chamber on the opposite side of its membrane forming part of a constant volume closed vessel for dialysis liquid. The system can be operated as a closed circuit during which time a fraction of the dialysis liquid is withdrawn from the constant volume closed vessel at a desired flow rate and the reduction in pressure then existing in the vessel near the membrane is noted. The system is then switched to open circuit with the dialysis liquid being fed from a source thereof and the used liquid is dumped, the pressure during this period being adjusted to the noted value.

REFERENCES:
patent: 3669880 (1972-06-01), Marantz et al.
patent: 3795318 (1974-03-01), Crane et al.

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