PROBLEM TO BE SOLVED: To provide a trocar device with a camera in which strength degradation of a turning axis of the camera can be prevented while securing good installation properties of the camera.SOLUTION: A camera part 36 is provided at the tip of a pipe part 31 of a trocar with the camera. A bearing structure of a camera part 36 has: a turning pin 65 outwardly protruding from both ends of the camera part 36； a bearing part 67 provided in a cut-out part 61 of the tip of the pipe part 31 and supporting the turning pin 65 in a turning manner； and a dropping prevention member 76 for holding the turning pin 65 in cooperation with the bearing part 67 and preventing the detachment from the bearing part 67 of the turning pin 65. A tip side acceptance opening 67 capable of accepting the turning pin 65 coming from the tip side of the pipe part 31 is provided in the bearing part 67. A free end of the dropping prevention member 76 is arranged by facing a tip side acceptance opening 67A. The dropping prevention member 76 is elastically deformed to the outside in the width direction of the camera part 36 by the abutment with the turning pin 65.SELECTED DRAWING: Figure 10【課題】カメラの良好な取り付け性を確保しながら、カメラの回動軸の強度低下を防止することが可能なカメラ付きトロカール装置を提供する。【解決手段】カメラ付きトロカールのパイプ部３１の先端にはカメラ部３６が設けられている。カメラ部３６の軸受け構造は、カメラ部３６の両端から外向きに突出する回動ピン６５と、パイプ部３１の先端の切り欠き部６１に設けられ、回動ピン６５を回動可能に支持する軸受け部６７と、軸受け部６７と協働して回動ピン６５を保持し、回動ピン６５の軸受け部６７からの脱落を防止する脱落防止部材７６とを有する。軸受け部６７には、パイプ部３１の先端側から進入する回動ピン６５を受け入れ可能な先端側受け入れ口６７が設けられており、脱落防止部材７６の自由端は、先端側受け入れ口６７Ａと対向して配置される。脱落防止部材７６は、回動ピン６５との当接によりカメラ部３６の幅方向において外向きに弾性変形する。【選択図】図１０
