Patent ID: 9592330
Date: 2017-03-14
CPC Classifications: A61M,B01D

Claim:
1. A dialysis apparatus comprising a dialysate circuit that supplies a dialysate to a dialyzer and recovers a treated dialysate, the dialysate circuit comprising a liquid supply passage that introduces a dialysate or a required liquid into the dialysate circuit, a liquid discharge passage that discharges the treated dialysate out of the dialysis circuit, a circulation passage that connects the liquid supply passage and the liquid discharge passage, a pump that is provided in the liquid supply passage and feeds the liquid in the liquid supply passage towards the downstream side, a liquid supply passage opening/closing valve that is provided upstream of a connection portion with the circulation passage in the liquid supply passage and opens and closes the liquid supply passage, a liquid discharge passage opening/closing valve that is provided downstream of a connection portion with the circulation passage in the liquid discharge passage and opens and closes the liquid discharge passage, a deaeration tank that is provided in the liquid supply passage and removes gas from the liquid within the liquid supply passage, a deaeration passage that has its one end connected to the deaeration tank and discharges the gas removed by the deaeration tank, heating means that heats the liquid within the dialysate circuit, a control means configured to control the aforementioned pump, supply passage opening/closing valve, liquid discharge passage opening/closing valve and the heating means such that the liquid supply passage opening/closing valve and the liquid discharge passage opening/closing valve are closed after the cleaning liquid is introduced into the aforementioned dialysate circuit and, in this state, the cleaning liquid in the dialysate circuit is heated while being circulated by the pump to clean the dialysate circuit, and a gas storage unit provided in the liquid discharge passage between the connection portion with the circulation passage in the liquid discharge passage and the liquid discharge passage opening/closing valve, for storing the gas discharged from the other end of the deaeration passage therein.