PROBLEM TO BE SOLVED: To provide a connection mechanism, a fluid processing system using the same, and an operation method of fluid processing devices, which can sanitarily connect in a desired state by an extremely simple operation when connecting the fluid processing devices.SOLUTION: In a connection mechanism for fluid processing devices, a fluid processing system using the same, and an operation method of the fluid processing devices, a connection mechanism communicates a first fluid processing device having a connector and a second fluid processing device having a penetrated wall part through penetration of the penetrated wall part by the connector. The connector has: an axial tip part capable of piercing the penetrated wall part by push-in of the connector to the penetrated wall part and a cut-open part branching from the tip part into a plurality of ridge-shaped parts, extending in a connector shaft direction, and comprising cutting edge parts, which can tear the penetrated wall part by further push-in, at a connector radial tip part of each ridge-shaped part. At a radial center part of the connector, a channel capable of communicating both fluid processing devices is formed.COPYRIGHT: (C)2015,JPO&INPIT【課題】流体処理装置間を接続するに際し、極めて簡単な操作にて衛生的に所望の状態で接続可能な接続機構と、それを用いた流体処理システムおよび流体処理装置の作動方法を提供する。【解決手段】接続具を有する第1の流体処理装置と被貫通壁部を有する第2の流体処理装置とを、接続具による被貫通壁部の貫通を介して連通する接続機構であって、接続具が、該接続具の被貫通壁部への押し込みにより被貫通壁部を突き刺し可能な軸方向先端部と、該先端部から複数の稜形状部に分岐して接続具軸方向に延び、各稜形状部の接続具径方向先端部に接続具のさらなる押し込みにより被貫通壁部を切り裂き可能な刃先部を備えた切開部とを有し、接続具の径方向中央部に、両流体処理装置を連通可能な流路が形成されていることを特徴とする流体処理装置用接続機構、およびそれを用いた流体処理システムと流体処理装置の作動方法。【選択図】図1
