Shibuya Kogyo Co., Ltd.

Shibuya Corporation

Takashi Mishima

Shingo Saito

Toshiharu Sawada

Kosho Matsuzaki

Yuki Nakamura

A dialysis apparatus has a connection channel that communicatively connects a dialysate circuit and a blood circuit, and circulates dialysate from the dialysate circuit to the blood circuit via the connection channel during a priming operation. A blood pump has a tube attachment device that switches from an unattached state in which a tube is positioned outside a housing and permits liquid to circulate thereinside, to an attached state in which the tube is in the housing and a rotor compresses the tube. At the time of priming, the liquid feeding pump feeds dialysate from the dialysate circuit to the blood circuit via the connection channel. With the blood pump being in the unattached state, the dialysate is circulated past the blood pump, and then, with the blood pump in the attached state, the dialysate is circulated in a direction opposite to the blood pump.

Dialysis apparatus and priming method for dialysis apparatus

A hemodialysis apparatusis provided with a dialyzerfor performing hemodialysis, a blood circuitconnected to the dialyzer, a dialysis solution circuitconnected to the dialyzer, a replacement fluid portprovided in the dialysis solution circuit and capable of being opened and closed by a lid member, and a replacement fluid passagehaving its one end connected to the blood circuit and the other end connected to the replacement fluid port.

Hemodialysis apparatus operating method and hemodialysis apparatus

A dialysis apparatus has a dialysate circuitwhich is cleaned after dialysis by both opening/closing valves Vand Vbeing closed after a dialysate in the dialysate circuitis replaced with a cleaning liquid. The opening/closing valve Vis opened, and the cleaning liquid is circulated by pumps Pand Pwhile being heated by a heater H, to clean the inside of the dialysate circuit. A deaeration tankis provided downstream of the pump P. Air bubbles generated from the cleaning liquid serving as hot water are deaerated by the deaeration tankand are then discharged into a gas storage tankvia a deaeration passage. The pumps Pand Pcan be reliably prevented from being unable to operate with the air bubbles generated from the cleaning liquid.

Dialysis apparatus

In cleaning the dialysis device, first, the concentrate passage is disconnected from the dialysis solution concentrate container and is connected to the branched passage, and a pre-cleaning process is performed in which the fluid circuit is replace with the purified water, and determining means () of a control device () determines that the fluid circulating in the fluid circuit is not the dialysis solution by using a conductivity meter (), and also determines that gas is not contained in the fluid circuit by using a downward movement detecting sensorin a deaeration tank, and then a main cleaning process is performed by using a cleaning solution. Incomplete cleaning due to incomplete connection can be prevented.

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Kanazawa, Japan

Takashi Mishima