Problem: to prevent kink from occurring in the tube during the priming posture while shortening the length of the tube connecting the pump portion and the artificial lung portion.The pump member fixing member 40 to which the pump Part 10 is fixed and the artificial lung fixing member 50 to which the artificial lung part 20 is fixed are connected by the first link member 60 and the second link member 70. The relative position between the port 12b of the pump portion 10 and the port 21a of the artificial lung portion 20 is controlled so that the distance between the port 12b of the pump portion 10 and the port 21a of the artificial lung portion 20 becomes equal to the priming posture and the operating posture.Diagram【課題】ポンプ部と人工肺部とを接続するチューブの長さを短くしながら、プライミング姿勢時にチューブにキンクが発生するのを抑制する。【解決手段】ポンプ部10が固定されるポンプ部固定部材40と、人工肺部20が固定される人工肺部固定部材50とを第1リンク部材60及び第2リンク部材70で連結する。ポンプ部10のポート12bと、人工肺部20のポート21aとの距離が、プライミング姿勢と運転中姿勢とで等しくなるようにポンプ部10のポート12bと人工肺部20のポート21aとの相対的な位置を制御する。【選択図】図1