Patent ID: 8246567

Claim:
A calculation and control system for determining whether a patient intended to follow several sessions (i, j) of extracorporeal blood treatment by drawing and return of the blood via the vascular access, falls or not within a group among several groups of hypertension-affected patients, the systems comprising the following means: a) means for determining the value of at least one parameter (ΔPi, ΔPj . . . ) representing the evolution of the interdialytic mass (ΔP) of the patient, for at least two sessions (i, j . . . ), b) means for determining the value (CPi, CPj, . . . ) of at least one parameter representing the plasmatic conductivity (CP) of the patient for at least two sessions (i, j), c) means for determining the value (TMi, TMj) of a parameter representing the ionic mass transfer of the treatment for at least two sessions (i, j), d) programmed means for determining whether the patient falls or not within a group of hypertension-affected patients as a function of the evolution over several sessions of at least one of the three following sets of values: a first set of at least two determined values (ΔPi, ΔPj) of the evolution of the interdialytic mass (ΔP) of the patient, a second set of at least two determined values (CPi, CPj . . . ) representing the plasmatic conductivity; and a third set of at least two determined values (TMi, TMj) representing the ionic mass transfer.