| 摘要 |
PURPOSE:To suppress the variation of the returned blood flow rate in pushing in the dialyzer liquid, by connecting the first circuit for introducing the blood supplied from living body to a dialyzer and the second circuit for returning the blood supplied from the dialyser into the living body through the third circuit, and allowing a portion of the blood in the second circuit to be returned into the first circuit. CONSTITUTION:The blood taken out from a living body is introduced into a dialyzer 4 through the first blood circuit 1, and blood is purified by bringing the blood into contact with the dialyzer liquid through a semipermeable membrane. The blood after purification is returned into the living body through the second blood circuit 2. With the dialyzer 4, a dialyzer liquid feeding circuit 5 and a dialyzer liquid discharging circuit 6 are connected, and the taking-out of moisture from the blood and the pushing in of the dialyzer liquid into the blood are carried out alternately by changing the pressure difference between the blood side and the dialyzer liquid side of the dialyzer 4 from positive to negative or from negative to positive. In this case, the third blood circuit 3 for connecting both the blood circuits 1 and 2 is provided, and a pump P2 for returning a portion of the blood in the second blood circuit 2 into the blood circuit 1, in interlocking with the pushing-in process of the dialyzer liquid is installed in the third circuit 3. |
