PROBLEM TO BE SOLVED: To enable continuous preparation of chemical even if an operation is performed erroneously.SOLUTION: A first male member 110 and a tubular part 30 are in communication with each other via first through third holes 21-23. A gas channel 212 and a liquid channel 211 of a second male member 210 are in communication with the tubular part. First through third channels 41-43 are formed in a faucet 40. The faucet can switch between a first rotation position that causes the first channel to place the first hole and a tubular syringe connecting part 32 in communication with each other, and a second rotation position that causes the first channel to place the liquid channel and the syringe connecting part in communication with each other. When the faucet is at the second rotation position, the second hole and the gas channel are in communication with each other via the second channel, and the first male member and an inner cavity 45 of the faucet are in communication with each other via the third hole and the third channel. A first hydrophobic filter 50a is provided on a channel that links the first male member and the gas channel when the faucet is at the second rotation position, and a second hydrophobic filter 50b is provided on a channel that links the first male member and a faucet-connected gas feed member 410 when the faucet is at the second rotation position.COPYRIGHT: (C)2014,JPO&INPIT【課題】誤操作を行っても薬液の調製作業を引きつづき行うことを可能にする。【解決手段】第1オス部材110と管状部30とが第1~第3孔21~23を介して連通する。第2オス部材210の液体流路211及び気体流路212が管状部と連通する。コック40に第1~第3流路41~43が形成される。コックは、第1流路が第1孔と管状部のシリンジ接続部32とを連通させる第1回転位置と、第1流路が液体流路とシリンジ接続部とを連通させる第2回転位置とに切り替え可能である。コックが第2回転位置にあるとき、第2孔と気体流路とが第2流路を介して連通し、第1オス部材とコックの内腔45とが第3孔と第3流路を介して連通する。コックが第2回転位置にあるときに第1オス部材と気体流路とを繋ぐ流路上に第1疎水性フィルタ50aが設けられ、コックが第2回転位置にあるときにコックに接続された送気部材410と第1オス部材とを繋ぐ流路上に第2疎水性フィルタ50bが設けられる。【選択図】図21
