PROBLEM TO BE SOLVED: To provide a blood purification device capable of draining fluid in a secondary side of a blood purification membrane, besides draining a blood circuit, and automatically performing both processes.SOLUTION: A blood purification apparatus 1 includes: a gas introduction part 12 that is connected to a dialysis fluid supply circuit 80 for introducing gas into the dialysis fluid supply circuit 80 a gas supply circuit 13 that is connected to the dialysis fluid supply circuit 80 and a blood circuit 10 for supplying the gas introduced from the gas introduction part 12 to the dialysis fluid supply circuit 80, to the blood circuit 10 without passing through a blood purification membrane 30 of the blood purifier 20 and pumps 120 and 102 that discharge residual fluid of the blood circuit 10 via the blood purification membrane 30 of the blood purifier 20 to a dialysis fluid discharge circuit 81.COPYRIGHT: (C)2016,JPO&INPIT【課題】血液回路に加えて血液浄化膜の二次側も抜液でき、なおかつそれらを自動で行うことができる血液浄化装置を提供する。【解決手段】血液浄化装置1は、透析液供給回路80に接続され、透析液供給回路80に気体を導入するための気体導入部12と、透析液供給回路80と血液回路10とを接続し、気体導入部12から透析液供給回路80に導入された気体を、血液浄化器20の血液浄化膜30を介さずに血液回路10に供給するための気体供給回路13と、血液回路10の残留液を血液浄化器20の血液浄化膜30を介して透析液排出回路81に排出するためのポンプ120、102とを有している。【選択図】図1
