PROBLEM TO BE SOLVED: To provide a mounting member capable of securely fixing a flexible tube while effectively utilizing a limited space. A main body that is attached to a blood purification apparatus having an ironing type pump and is attached to a predetermined position of the blood purification apparatus in an attachment member that holds a pump tube capable of being squeezed in a predetermined direction by the ironing type pump and delivering a liquid. The main body 2 is attached to the portion 2 and the main body, and the main body 2 has openings (H1 to H4) through which the flexible tubes r1 and r2 for circulating the liquid can be inserted, and the flexible tube is inserted into the openings. It is characterized in that it can be fixed. [Selection diagram] Fig. 16【課題】限られたスペースを有効活用しつつ可撓性チューブを確実に固定することができる取付部材を提供する。【解決手段】しごき型ポンプを有する血液浄化装置に取り付けられ、しごき型ポンプによって所定方向にしごかれて送液可能なポンプチューブを保持した取付部材において、血液浄化装置の所定位置に取り付け可能な本体部２と、本体部に取り付けられるとともに、本体部２は、液体を流通させる可撓性チューブｒ１、ｒ２が挿通可能な開口（Ｈ１～Ｈ４）を有し、開口に可撓性チューブを挿通させて固定させ得ることを特徴とする。【選択図】図１６
