PROBLEM TO BE SOLVED: To provide an endoscope system having such a configuration that a jig can be brought into contact with a level difference from an unspecified direction by remote control to easily and simply measure a depth of the level difference within an observation field of view of an endoscope.SOLUTION: The endoscope system includes a jig 1 having a shaft member 2 and a turning member 3, and an endoscope 50 for observing at least the jig 1. After the turning member 3 is fitted into a concave portion, the shaft member 2 is brought into contact with a top surface of a pipe member 10 if the depth of the concave portion is equal to or greater than a thickness of the turning member 3, but the shaft member 2 is not brought into contact with the top surface of the pipe member 10 if the depth of the concave portion is smaller than the thickness of the turning member 3. The endoscope 50 observes at least whether the shaft member 2 is brought into contact with the top surface of the pipe member 10 after the turning member 3 is fitted into the concave portion.COPYRIGHT: (C)2013,JPO&INPIT【課題】内視鏡の観察視野内において、遠隔操作にて段差に対して不特定の方向から治具を接触させることができ、容易かつ簡単に段差深さを測定することができる構成を具備する内視鏡システムを提供する。【解決手段】軸部材2と、回動部材3とを有する治具1と、少なくとも治具1を観察する内視鏡50と、を具備し、軸部材2は、凹部に回動部材3が嵌入後、凹部の深さが回動部材3の肉厚以上のときパイプ部材10の頂面に接触するとともに凹部の深さが回動部材3の肉厚よりも小さいときパイプ部材10の頂面に非接触となり、内視鏡50は、凹部に回動部材3が嵌入後、少なくともパイプ部材10の頂面への軸部材2の接触の有無を観察することを特徴とする。【選択図】図1
