PROBLEM TO BE SOLVED: To provide a blood purifier which facilitates removal of bubbles and can maintain a posture independently.SOLUTION: A blood purifier 10 comprises adsorption bodies 12 for adsorbing etiologic substances in blood, and a self-standing accommodation container 14 which is filled with the adsorption bodies 12 and deformed by force from inside and outside. The accommodation container is provided with an introduction port 18A and a lead-out port 18B of the blood. The introduction port and the lead-out port are provided with headers 16 which can be connected to a blood circulation circuit. The headers are provided with retaining mechanisms 22 for preventing the headers from coming off from the introduction port and the lead-out port during deformation of the accommodation container.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】気泡除去が容易で、かつ、単独で姿勢を維持することのできる血液浄化器を提供する。【解決手段】血液浄化器10は、血液中の病因物質を吸着する吸着体12と、前記吸着体12が充填されるとともに内外部からの力で変形し、かつ、自立可能な収容容器14と、を備える。また、前記収容容器には、血液の導入口及び導出口が設けられ、前記導入口18A及び導出口18Bには、血液循環回路に接続可能なヘッダ16が設けられ、前記ヘッダには、前記収容容器の変形時に、前記導入口及び導出口からの抜けを防止する抜け止め機構22が設けられている。【選択図】図2