Single-needle artificial kidneys

Details Single-needle artificial kidneys Single-needle artificial kidneys

1988-11-23

1991-09-10

Spear, Frank

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Proportionate feed means

210134, 2103216, 2104961, B01D 6132

Patent

active

050471473

ABSTRACT:
Artificial kidney of the single-needle type, incorporating an extracorporeal blood circuit provided with a haemodialyser (13) or haemofilter (31) positioned between two blood circulation pumps (12, 19). This circuit is also provided with a bubble trap (18) and a safety clamp (26) and means for perfusing quantities of liquid which are capable of being relatively large. The perfusing means comprise a reservoir (23) and a perfusion pump (24) the motion of which is under the control of the sequential motion of one of the two blood circulation pumps (12, 19) and also comprise a conduit connecting the reservoir (23) to the extracorporeal blood circuit by way of the perfusion pump (24).

REFERENCES:
patent: 4275726 (1981-06-01), Schael
patent: 4490135 (1984-12-01), Trouther

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