PROBLEM TO BE SOLVED: To provide a connector capable of reducing liquid such as infusion solution accumulated in a cavity. SOLUTION: A connector 1 is connected in the middle of an infusion line and used for mixed injection. A disk-shaped connector body 2 having upright members 21a and 21b provided with U-shaped groove portions 23a and 23b in the upper portion and an upright member provided with a partition member 24 in the upper portion, and U-shaped groove portions 23a and 23b of the upright members 21a and 21b. Forming a flow path 36a, 36b between them and an inverted U-shaped notch 31 forming a connection space 37 connecting the flow paths 36a, 36b, and a cavity 32 accommodating the partition member 24. A flexible tower-shaped member 31 including an inner wall portion 33 and a mixed injection port 35, an inflow port 43 that fixes the flexible tower-shaped member 3 to the connector body 2 and communicates with the flow path 36a, and a flow path. 36b, and a cover member 4 having an outlet 44 communicating with 36b. [Selection diagram]【課題】空洞部に滞留する輸液等の液体を低減することができるコネクタを提供する。【解決手段】コネクタ１は輸液ラインの途中に接続されて混注に用いられる。上部にＵ字溝部２３ａ，２３ｂを備える直立部材２１ａ，２１ｂと、上部に仕切り部材２４を備える直立部材とを備える円盤状のコネクタ本体２と、直立部材２１ａ，２１ｂのＵ字溝部２３ａ，２３ｂとの間に流路３６ａ，３６ｂを形成し、かつ、流路３６ａ，３６ｂを接続する接続空間部３７を形成する逆Ｕ字状切欠部３１と、仕切り部材２４を収容する空洞部３２を形成する内壁部３３と、混注口３５とを備える可撓性塔状部材３１と、可撓性塔状部材３をコネクタ本体２に固定し、かつ、流路３６ａに連通する流入口４３と、流路３６ｂに連通する流出口４４とを備えるカバー部材４とを備える。【選択図】図３
