PROBLEM TO BE SOLVED: To provide a syringe having a female connector at a mouth of the syringe and capable of inhibiting contamination of a female screw of a male connector.SOLUTION: A syringe 1 comprises an external cylinder including a cylindrical body 11, and a mouth 20 provided at one end of the body. The mouth includes a cylindrical body 21 communicated to a lumen of the body, and a male screw 22 formed at an outer surface of the cylindrical body. The cylindrical body includes: an insertion portion 21a disposed at a proximal side of the cylindrical body with respect to the male screw a fracture portion 21b disposed at the distal side of the cylindrical body with respect to the male screw and extending in the circumferential direction of the cylindrical body and a liquid contact portion 21c that is disposed at the distal side of the cylindrical body with respect to the fracture portion and may be cut off from the cylindrical body by fracture of the cylindrical body at the fracture portion.COPYRIGHT: (C)2016,JPO&INPIT【課題】本発明は、シリンジの口部にメスコネクタを設けたシリンジであって、オスコネクタの雌ネジの汚染を抑制できるシリンジを提供する。【解決手段】本発明のシリンジ1は、筒状の本体11と本体の一端に設けられた口部20とを備えた外筒を含むシリンジであって、口部は、本体の内腔と連通した筒状体21と、前記筒状体の外表面に形成された雄ネジ22とを含み、筒状体は、雄ネジよりも筒状体の基端側に配置された挿入部21aと、雄ネジよりも筒状体の先端側に配置され、筒状体の周方向に延びる破断部21bと、破断部よりも筒状体の先端側に配置され、破断部での筒状体の破断により筒状体から切り離され得る接液部21cを含む。【選択図】図4
