| 摘要 |
PROBLEM TO BE SOLVED: To provide a hemodialyzer capable of significantly improving accuracy of a water removal quantity.SOLUTION: A hemodialyzer comprises: dialysis liquid supply/reception elements 9a, 9b having a partition wall which can displace between a dialysis liquid supply chamber and a dialysis liquid supply chamber; a circulation pump 8; a dialysis liquid supply path 16; a water removal pump 20; and a relief valve 23. The dialysis liquid supply path 16 has a pressure control valve 31 for controlling output pressure of a liquid feeding pump 24 to optional pressure. The hemodialyzer further comprises a control device 32 for controlling the pressure control valve 31 for, according to fluctuation of the output pressure of the circulation pump 8 following to on/off of operation of the water removal pump 20, substantially making the output pressure of the liquid feeding pump after the dialysis liquid supply chambers of the dialysis liquid supply/reception elements 9a, 9b communicated to the dialysis liquid supply path 16 become full, match upper limit pressure of the output pressure of the circulation pump 8 controlled by the relief valve.SELECTED DRAWING: Figure 1 |
