Patent ID: 9682182
Date: 2017-06-20
CPC Classifications: A61M

Claim:
1. A dialysate supply unit for supplying dialysate of a dialysate tank to a hemodialyzer and collecting dialysate passing through the hemodialyzer in an effluent tank, the dialysate supply unit comprising: a dialysate pump connecting the dialysate tank and the hemodialyzer; an effluent pump connecting the hemodialyzer and the effluent tank; a first flow-blocking valve alternately blocking a dialysate outflow tube connecting the hemodialyzer and the dialysate pump and an effluent inflow tube connecting the hemodialyzer and the effluent pump; a second flow-blocking valve alternately blocking a dialysate inflow tube connecting the dialysate pump and the dialysate tank and an effluent outflow tube connecting the effluent pump and the effluent tank; and a flow-blocking valve driver for driving the first flow-blocking valve or the second flow-blocking valve, wherein the dialysate pump and the effluent pump each comprise a cylinder, a piston reciprocally disposed inside the cylinder, and a piston driver allowing the piston to reciprocate, wherein each of the cylinders has one chamber for containing dialysate, and wherein all chambers are directly connected to the hemodialyzer and are simultaneously compressed or expanded.