Hemodialysis apparatus has dialysis fluid system with metering unit measuring physical or chemical parameters of washing liquid and processor comparing values with those of liquid in recirculation mode

摘要

Hemodialysis apparatus has a dialysis fluid system (1) with a control unit (23) which switches it between a washing mode and a recirculation mode. A metering unit (24) measures physical or chemical parameters of the washing liquid and a processor (25) compares the values with those of the liquid in recirculation mode. An alarm is generated if the difference between the two values exceeds a preset value. An Independent claim is included for a method for detecting impurities in washing liquid for a hemodialysis apparatus as described above.