PROBLEM TO BE SOLVED: To provide a connector 1 combining a sealing property, injection easiness, and good hygiene, and a connector valve element 5 for use in the connector 1.SOLUTION: The connector valve element 7 includes: a cylindrical hollow head 21 having an outer peripheral surface 32 being in close contact with a connecting port 12, and a flat top surface 36 exposed from the connecting port 12 a body 23 disposed on the opposite side of the top surface 36 and having three through-holes 52-54 and a head support part 22 having a second seal 41 disposed between the cylindrical hollow head 21 and the body 23. The connector 1 includes a connector tube 5 having three connecting ports 12-14, and an internal space 15 linking the connecting ports 12-14, and a connector body 7. The connector can change over between: a first attitude in which the outer peripheral surface 32 seals the inner peripheral surface of the connecting port 12 and the second seal section 41 comes into pressure contact with an inner peripheral step 19 and a second attitude in which the connector contracts in the direction of an axis C by pressure acting in the direction of the axis C, thereby allowing an inner cavity 81a of a tube body 81 to communicate with the internal space 15.COPYRIGHT: (C)2013,JPO&INPIT【課題】密閉性、注入容易性及び衛生面を兼備するコネクタ1及びこのコネクタ1に用いられるコネクタ用弁体5を提供すること。【解決手段】接続口12に密接する外周面32及び接続口12に露出する平坦な頂面36を有する筒状中空頭部21と、頂面36と反対側に配置され、3つの貫通孔52~54を有する胴部23と、筒状中空頭部21と胴部23との間に配置された第2のシール部41を有する頭部支持部22とを備えたコネクタ用弁体7、並びに、3つの接続口12~14及びこれら接続口12~14を連通する内部空間15を有するコネクタ管5とコネクタ用弁体7とを備え、外周面32が接続口12の内周面を密閉し、第2シール部41が内周段差19に圧接する第1姿勢と、軸線C方向に作用する圧力で軸線C方向に収縮して管体81の内腔81aと内部空間15とを連通させる第2姿勢とに移行可能なコネクタ1。【選択図】 図1
