Patent ID: 11911544
Assignee: NIKKISO COMPANY LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A blood purification apparatus that includes:
a blood circuit including an arterial blood circuit and a venous blood circuit and that allows a patient's blood to extracorporeally circulate, with a blood purifier that is interposed between the arterial blood circuit and the venous blood circuit and purifies the patient's blood;
a dialysate temporary chamber that temporarily stores dialysate received from a dialysate storage supported by a supporting unit;
a substitution-fluid temporary chamber that temporarily stores substitution fluid received from a substitution-fluid storage supported by the supporting unit;
a first dialysate introduction line through which the dialysate in the dialysate storage flows into the dialysate temporary chamber; and
a substitution line through which the substitution fluid in the substitution-fluid storage flows into the substitution-fluid temporary chamber,
the blood purification apparatus comprising:
a dialysate transfer pump provided to the first dialysate introduction line and that transfers the dialysate in the dialysate storage to the dialysate temporary chamber;
a substitution-fluid transfer pump provided to the substitution line and that transfers the substitution fluid in the substitution-fluid storage to the substitution-fluid temporary chamber;
a control unit configured to control the dialysate transfer pump and the substitution-fluid transfer pump;
a drain-liquid temporary chamber that stores drain liquid received from the blood purifier;
a drain-liquid drain line through which the drain liquid in the drain-liquid temporary chamber is drained to an outside of the blood purification apparatus;
a drain-liquid transfer pump provided to the drain-liquid drain line and that transfers the drain liquid in the drain-liquid temporary chamber to the outside of the blood purification apparatus,
a second dialysate introduction line through which the dialysate in the dialysate temporary chamber flows into the blood purifier; and
a dialysate introduction pump provided to the second dialysate introduction line and that delivers the dialysate in the dialysate temporary chamber to the blood purifier,
wherein the control unit configured to control the drain-liquid transfer pump in addition to the dialysate transfer pump and the substitution-fluid transfer pump; and
wherein the control unit configured to control a flow rate of the dialysate transfer pump in accordance with a flow rate of the dialysate introduction pump.