| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent pumps from becoming incapable of sending fluid due to air bubbles generated from cleaning fluid.SOLUTION: When washing a dialysate circuit 4 after dialysis, a dialysate inside the dialysate circuit 4 is replaced with cleaning fluid first and then both on-off valves V101 and V102 are closed. Then, by opening an on-off valve V12, circulating the cleaning fluid by the pumps P1 and P4, and performing heating by a heater H1, the inside of the dialysate circuit 4 is washed. A deaeration tank 31 is provided on a downstream side of the pump P1, and air bubbles generated from the cleaning fluid which is turned to hot water are deaerated in the deaeration tank 31 and then discharged through a deaeration path 32 to a gas storage tank 48. The pumps P1 and P4 can be surely prevented from becoming inoperable due to air bubbles generated from the cleaning fluid. |
