Patent ID: 11951245
Assignee: NIKKISO COMPANY LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A blood purification apparatus comprising:
a drain-liquid temporary chamber that stores drain liquid drained from a blood purifier that purifies blood of a patient;
a first drain-liquid drain line through which the drain liquid flows into the drain-liquid temporary chamber;
a second drain-liquid drain line through which the drain liquid stored in the drain-liquid temporary chamber is drained to an outside of the blood purification apparatus;
a draining unit provided to the second drain-liquid drain line and that drains the drain liquid stored in the drain-liquid temporary chamber to an outside of the blood purification apparatus, wherein the draining unit includes a drain-liquid transfer pump located between the drain-liquid temporary chamber and the outside of the blood purification apparatus, to drain the drain liquid stored in the drain-liquid temporary chamber to the outside of the blood purification apparatus by transferring the drain liquid;
a remaining-amount-detecting unit that detects an amount of drain liquid remaining in the drain-liquid temporary chamber;
a drain-liquid drain pump located within the first drain-liquid drain line between the blood purifier and the drain-liquid temporary chamber and to deliver dialysate from the blood purifier to the drain-liquid temporary chamber;
a judging unit that judges whether or not a reference remaining amount is reached by the drain liquid in the drain-liquid temporary chamber from a result of detection by the remaining-amount-detecting unit; and
a control unit that controls the draining unit,
wherein the control unit executes a draining process in which the draining unit is controlled such that the drain liquid in the drain-liquid temporary chamber is drained to the outside of the blood purification apparatus, and the draining process is ended if it is judged by the judging unit that the reference remaining amount is reached by the drain liquid in the drain-liquid temporary chamber; and
wherein if a total amount of flow generated by the drain-liquid drain pump in a previous monitoring process is reached by a total amount of flow generated by the drain-liquid transfer pump in the draining process, the control unit shifts operation to a monitoring process.