PROBLEM TO BE SOLVED: To provide a connector excellent in syringeability of fluid.SOLUTION: The connector includes: a connector tube 5 having connection openings 12-14 connectable with tubes, an internal space 15 connecting these connection openings 12-14, and valve seats 18 arranged in the internal space 15 in annularly continuous or non-continuous shape with a distance from the first connection opening 12 and a spheroid-like valve element 7 having a sealing part 21 for sealing the first connection opening 12, and a flow-path expansion/contraction part 22 joined continuously with the sealing part 21 and arranged with at least one groove. The valve element 7 is arranged such that the sealing part 21 faces the first connection opening 12 and the flow-path expansion/contraction part 22 faces the valve seats 18.COPYRIGHT: (C)2013,JPO&INPIT【課題】流体の注入性に優れたコネクタを提供する。【解決手段】管体を接続可能な接続口12~14、これらの接続口12~14を連通する内部空間15、及び、内部空間15内に第1の接続口12から距離をおいて連続又は非連続の環状に配置された弁座18を有するコネクタ管5と、第1の接続口12を密閉する密閉部21及び密閉部21に連接され、少なくとも1本の溝が配置された流路拡縮部22を有する回転楕円体様の弁体7とを備え、この弁体7は、密閉部21が第1の接続口12に面し、流路拡縮部22が弁座18に面するように、配置されている。【選択図】図1
