PROBLEM TO BE SOLVED: To provide a medical connector for preventing loosening of locking with improved operability, in the medical connector provided at the end part of a medical tube implement for performing locking so as to maintain connection with another medical tube implement by externally fitting and connecting the female tube part of the other medical tube implement to a male tube part, rotating a cylindrical body and engaging female threads of the cylindrical body to male threads formed on the outer peripheral surface of the female tube part of the other medical tube implement.SOLUTION: The medical connector is provided with a blocking means 53 arranged on the outer peripheral surface of the male tube part 21 to be in contact with the proximal end of the cylindrical body 3 and freely block movement to the proximal end side of the cylindrical body 3 in the state of externally fitting the female tube part of the other medical tube implement 200 to the male tube part 21, engaging the female threads 32a to the male threads of the other medical tube implement 200 and locking it. Thus, locking is prevented from loosening by the cylindrical body 3 moved to the proximal end side while being rotated by an impact from the outside.COPYRIGHT: (C)2009,JPO&INPIT【課題】医療用管具の端部に設けられ、雄管部に他の医療用管具の雌管部を外嵌させて接続し、筒状体を回転して他の医療用管具の雌管部の外周面に形成された雄ネジに筒状体の雌ネジを螺合させることにより、他の医療用管具との接続を維持するようにロックする医療用コネクタにおいて、ロックの緩みを防止すると共に、操作性を向上させたものを提供する。【解決手段】雄管部21の外周面に配置され、雄管部21に他の医療用管具200の雌管部を外嵌し雌ネジ32aを他の医療管具200の雄ネジに螺合させてロックした状態で、筒状体3の基端に接触し筒状体3の基端側への移動を阻止自在な阻止手段53を備える。これにより、外部からの衝撃によって、筒状体3が回転しながら基端側に移動しロックが緩むことを防止することができる。【選択図】図2
