SOLUTION CIRCUIT APPARATUS WITH BYPASS, AND BLOOD PURIFICATION SYSTEM COMPRISING THE SOLUTION CIRCUIT APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a solution circuit for a blood purification system, the solution circuit being less likely to overheat the solution when the solution flow stops.SOLUTION: A blood purification system 50 comprises an extracorporeal blood circuit 40 and a solution circuit apparatus 30. The solution circuit apparatus includes: a solution source 1; a warmer 3 having a temperature sensor 8; a bypass branch 26; a delivery branch 25 communicating with the extracorporeal blood circuit 40; a pump 2; a switching device 5; and a control unit 39 configured to set the solution circuit apparatus into one of a solution delivery condition and a solution stop condition. In the solution delivery condition, the switching device interrupts the bypass branch, and the pump delivers the solution via the warmer and through the delivery branch. In the solution stop condition, the switching device interrupts the delivery branch, and the pump recirculates the solution through the warmer via the bypass branch. In the solution stop condition, the pump rate is dependent on the output of the temperature sensor.SELECTED DRAWING: Figure 1