| 摘要 |
The apparatus comprises: a dialyser (2) which delimits an extra-corporeal blood circuit from a circuit in which the dialysing liquid circulates; a differential flow meter (16) having two tubes traversed in countercurrent by the flow of liquid which a first duct (6) carries to the dialyser and by the output flow from this via a second duct (7), and an electric unit (17) which generates a signal proportional to the mass flow rate difference between these flows; a third duct (8) branching from the first duct, which infuses a quantity of liquid into the blood; and a central control unit (21) which processes the signal generated by the unit and which controls a pump installed in the second duct in such a way that along this flows a quantity which is the sum of the quantity of liquid sent to the dialyser, the quantity of liquid subtracted from the patient relating to the predetermined weight loss, and a quantity of water equal to the quantity of infused liquid. <IMAGE> |
