METHOD FOR DETERMINING A SIGNIFICANT PARAMETER OF THE PROGRESS OF AN EXTRACORPOREAL BLOOD TREATMENT

摘要

A process for the continuous determination of a parameter (D, Cbin, K, Kt / v) which is significant for the efficacy of an extracorporeal treatment of the blood comprises the steps of:. circulating in a heat exchanger a treatment liquid having a characteristic (Cd) related to the effectiveness of the treatment ;. cause a succession of variations in the characteristic (Cd) upstream of the exchanger ;. continuously store a plurality of values (Cdin1 ... Cdinj ... Cdinp) of the characteristic (Cd) upstream of the exchanger ;. continuously measure and store in memory a plurality of values (Cdout1 ... Cdoutj ... Cdoutp) taken by the characteristic (Cd) downstream of the exchanger in response to variations in the characteristic (Cd) caused upstream of the 'exchanger; calculate, each time a determined number of new values (Cdoutj) of the characteristic (Cd) downstream of the exchanger has been memorized, a parameter (D, Cbin, K, Kt / v) significant of the efficiency of the extracorporeal treatment of blood, from a first series of values (Cdinj) of the characteristic (Cd) upstream of the exchanger, of a second series of values (Cdoutj) of the characteristic (Cd) downstream of the exchanger, and by means of a mathematical model of the influence of the characteristic (Cd) on the efficiency of the treatment, the mathematical model having at least one coefficient constituted by a parameter (D, Cbin) significant of the efficiency extracorporeal blood treatment.