PROBLEM TO BE SOLVED: To reduce concerns about hygiene in a configuration capable of switching flow channels.SOLUTION: A flow channel switching device (11) comprises: a holding body (21) having a first holding part (23) for holding a first flow channel (7) and a second holding part (24) for holding a second flow channel (8) a flow channel blockage part (43) for blocking each flow channel (7, 8) by contacting each flow channel (7, 8) from the outside an opposite part (26) opposable to the flow channel blockage part (43) and a support body (41) supported with respect to the holding body (21) at any of a first position at which the flow channel blockage part (43) comes into contact with the first flow channel (7) to block the first flow channel (7), a second position at which the flow channel blockage part (43) comes into contact with the second flow channel (8) to block the second flow channel (8), and a third position at which the flow channel blockage part (43) fits into the opposite part (26).COPYRIGHT: (C)2015,JPO&INPIT【課題】流路を切り替え可能な構成において、衛生上の懸念を減らすこと。【解決手段】第1の流路(7)を保持する第1の保持部(23)と、前記第2の流路(8)を保持する第2の保持部(24)と、を有する保持体(21)と、各流路(7,8)に外部から接触して流路(7,8)を閉塞させる流路閉塞部(43)と、流路閉塞部(43)と対向可能な対向部(26)と、流路閉塞部(43)が第1の流路(7)に接触して第1の流路(7)を閉塞する第1の位置と、流路閉塞部(43)が第2の流路(8)に接触して第2の流路(8)を閉塞する第2の位置と、流路閉塞部(43)が対向部(26)に嵌合する第3の位置と、のいずれかの位置で保持体(21)に対して支持される支持体(41)と、を備えたことを特徴とする流路切替装置(11)。【選択図】図2
