Method and device for monitoring the correct composition of dialysis solution, in particular for bicarbonate dialysis

摘要

In the dialysis solution mixing system, the conductivity of the dialysis solution is measured in conjunction with the pH and the ion concentration, and the measured values are passed to an evaluation unit (10) which, if the composition of the dialysis solution differs from the preset value, causes the dialysis solution to bypass the dialyser (1). A temperature-compensated conductivity measuring unit (11), a pH measuring unit (12) and at least one ion-selective or ion-sensitive measuring electrode (13) are located in the supply line (3) upstream of the dialyser (1) in the dialysis solution unit and upstream of the bypass line (6) and connected to an evaluation unit (10) which in each case passes a signal to a blocking element (8) in the bypass line (6) and a blocking element (7) in the supply line (3). <IMAGE>