PROBLEM TO BE SOLVED: To reduce possibility of leaking a medicinal solution containing a dangerous drug to environment in a priming operation.SOLUTION: An infusion set 1 comprises: a first flow channel 10 which is constituted of a soft tube 10a and has a bottle needle 11 at one end a second flow channel 20 which is constituted of a soft tube 20a and has a lock connector 50 that is provided at one end and includes a lock mechanism 60 engaging with a female connector 200 a third flow channel 30 which is constituted of soft tubes 30a, 30b, 30c and has a male connector 31 at one end and a three-way stopcock 40 to which the other end of the first flow channel, the other end of the second flow channel, and the other end of the third flow channel are connected. The three-way stopcock is provided with a handle 41 which can be switched to a first position at which the first flow channel communicates with the third flow channel and to a second position at which the second flow channel communicates with the third flow channel.COPYRIGHT: (C)2014,JPO&INPIT【課題】プライミング操作時に危険性医薬品を含む薬液を外界に漏出させてしまう可能性を低減する。【解決手段】輸液セット1は、柔軟なチューブ10aで構成され、一端に瓶針11が設けられた第1流路10と、柔軟なチューブ20aで構成され、一端にメスコネクタ200と係合するロック機構60を備えたロックコネクタ50が設けられた第2流路20と、柔軟なチューブ30a,30b,30cで構成され、一端にオスコネクタ31が設けられた第3流路30と、第1流路の他端、第2流路の他端、及び、第3流路の他端が接続された三方活栓40とを備える。三方活栓は、第1流路と第3流路とを連通させる第1位置と、第2流路と第3流路とを連通させる第2位置とに切り替えることができるハンドル41を備える。【選択図】図1
