[Comparative hemolysis studies of various dialysis technics]

In simultaneous experiments the haemolysis in the double-needle dialysis was investigated in comparison to the single-needle technique. As SN-technique the 2-clamp technique with permanently going and start-stop function of the blood pump, respectively, was used. Another technique without arterial and with retarded venous clamp was tested. Furthermore, the pressure limits in the SND were varied. A slight increase of the haemolysis in the SND in comparison to the DND was stated. In the different SN-techniques no essential differences in the haemolysis could be proved, whereas an increase of the pressure limits led to a clear increase of the haemolysis.