PROBLEM TO BE SOLVED: To provide a connector without a dead space where a liquid such as an infusion solution stays. A connector is connected in the middle of an infusion line and used for mixed injection. A flexible valve body 3 including a connector body 2 including an inflow port 21, an outflow port 22, a connection space portion 23, and a conical protrusion member 24, a disc-shaped member 31, a columnar member 32, and a mixed injection port 33. , And a cover member 4 for fixing the flexible valve body 3 to the connector body 2. The flexible valve body 3 bends when the columnar member 31 is pressed by the distal end portion 5 of the injection cylinder, and adheres closely to the conical protrusion member 24. And a groove portion 25 that forms a gap. [Selection diagram] Fig. 4【課題】輸液等の液体が滞留する死空間の無いコネクタを提供する。【解決手段】コネクタは輸液ラインの途中に接続されて混注に用いられる。流入口２１と流出口２２と接続空間部２３と錐状突起部材２４とを備えるコネクタ本体２と、円盤状部材３１と円柱状部材３２と、混注口３３とを備える可撓性弁体３と、可撓性弁体３をコネクタ本体２に固定するカバー部材４とを備える。可撓性弁体３は円柱状部材３１が注射筒の先端部５により押圧されたときに屈曲して錐状突起部材２４に密着し、錐状突起部材２４は可撓性弁体３に対して間隙を形成する溝部２５を備える。【選択図】図４
