PROBLEM TO BE SOLVED: To clean an observation window certainly without leaving water drop while keeping high washing ability without weakening water flow of the washing liquid even if there are a plurality of washing liquid nozzles.SOLUTION: A rigid endoscope includes an endoscope body, a sheath, a fluid tube path, and a plurality of washing liquid nozzles, and the endoscope body has an operation part and a rigid inserting part which is connected to the front end of the operation part, and the sheath is inserted with the inserting part of the endoscope body, and the fluid tube path is composed of a gap between the inserting part inserted in the sheath and the inner wall of the sheath, and the plurality of washing liquid nozzles connect to the fluid tube path and receive the supply of washing liquid from the fluid tube path to eject the washing liquid on the front end surface of the inserting part, and the directions of the plurality of washing liquid nozzles are arranged not to cross the directions of washing liquid flows ejected from each washing liquid nozzle mutually on the front end surface, and the rigid endoscope is provided.COPYRIGHT: (C)2012,JPO&INPIT【課題】洗浄液の噴出口が複数ある場合でも洗浄液の水流が弱くならず高い洗浄性を保ち、かつ水滴を残さず確実に観察窓の洗浄を行う。【解決手段】操作部と該操作部の先端部に接続された硬性の挿入部とを備えた内視鏡本体、及び該内視鏡本体の前記挿入部が挿入されるシースを有する硬性内視鏡において、前記シース内に挿入された前記挿入部と前記シースの内壁との間の隙間により構成された流体管路と、前記流体管路に接続し、前記流体管路から洗浄液の供給を受けて、前記挿入部先端の先端面上に前記洗浄液を噴出する複数の洗浄液噴出口と、を備え、前記複数の各洗浄液噴出口から噴出される洗浄液の水流の方向が前記先端面上で互いに交差しないように、前記複数の洗浄液噴出口の向きが配置されたことを特徴とする硬性内視鏡を提供することにより前記課題を解決する。【選択図】図7
