PROBLEM TO BE SOLVED: To provide a unit for purifying blood which prevents an increase in risk of a thrombus while suppressing the amount of escaping blood stream to a low value.SOLUTION: A unit 100 for purifying blood is used for a system 1 for purifying blood which performs purification of blood. The system 1 for purifying blood includes a bypass circuit 40 connected to a part of an artery-side circuit 20 and to a part of a vein-side circuit 30 in a manner to bypass a blood purifier 10. The unit 100 has at least a blood pump 120 which is so constituted that it can be disposed at a position located in a region from an escaping blood port 26 to the portion of connection with the bypass circuit 40 in the artery-side circuit 20, and is provided for sending the blood on the artery-side circuit 20 toward the blood purifier 10, a pump 122 for the bypass circuit which is so constituted that it can be disposed on the bypass circuit 40 and is provided for sending the blood on the bypass circuit 40 toward the side of the artery-side circuit 20 from the side of the vein-side circuit 30, and a control part 150 which controls driving of each of the pumps 120 and 122.COPYRIGHT: (C)2014,JPO&INPIT【課題】脱血流量を低い値に抑えながらも血栓発生リスクを高めることのない血液浄化装置を提供する。【解決手段】血液浄化を行うための血液浄化システム1に用いる血液浄化装置100。血液浄化システム1は、血液浄化器10を迂回するように、動脈側回路20の一部と静脈側回路30の一部に接続される迂回回路40を備える。血液浄化装置100は、動脈側回路20のうち脱血口26から迂回回路40との接続部分までの位置に配置可能に構成され、動脈側回路20上の血液を血液浄化器10に向けて送るための血液ポンプ120と、迂回回路40上に配置可能に構成され、迂回回路40上の血液を静脈側回路30の側から動脈側回路20の側に向けて送るための迂回回路用ポンプ122と、各ポンプ120,122の駆動を制御する制御部150とを少なくとも有する。【選択図】図1
