A method for regulating the sodium concentration in the dialysate according to a prescription.

摘要

Algorithm programmed to a control unit and control a dialysis machine, the dialysis apparatus comprising: - means (14) for preparing a dialysis liquid containing sodium, comprising means for adjusting (18) the concentration of sodium; - a circuit for dialysis liquid comprising a feed line (12) and a discharge tube (13), the feed line (12) having one end connected to the means (14) for preparing dialysis liquid and another connectable to a dialyser (1) end having the discharge tube (13) connectable to a dialyser end (1); - means (9, 10, 12) for perfusing a patient with an infusion solution containing sodium and a substance A at determined concentrations [Na +] sol and [A] sol. - a control unit and control in which the algorithm programmed, when executed by the control unit and control said means for perfusing comprise a deperfusión solution makes the control unit and control capable of executing a control procedure so that the inside the patient tends towards a desired sodium concentration [Na +] des, comprising the following steps: - determining the desired concentration of sodium [Na +] dial of the dialysis liquid; - sending means (18) for regulating the sodium concentration of the dialysis liquid such that this concentration is equal to the determined desired concentration [Na +] dial, - wherein the desired concentration of sodium is determined in function of the dialysance D of the dialyser (1) for sodium, of sodium Desead concentration [Na +] des inside the patient, the infusion flow rate Qinf and sodium concentration [Na +] sol of the perfusion solution.