PROBLEM TO BE SOLVED: To prevent a protective adapter for an endoscope from falling into an object to be inspected in advance by notify a user quickly of the fact when the protective adapter for the endoscope is about to fall off from an insertion part of an endoscope device.SOLUTION: An protection adaptor 20 for an endoscope includes: a protection tube 21 detachable to a tip part 8 of an insertion part 7 of an endoscope device 1 and a reflector 23 provided to the protective tube so that the protective tube 21 is reflected in an angle of view of an imaging part of the endoscope device 1 when a screw part is loosen and the protective tube 21 is moved to a direction of desorption from the tip part 8.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2019,JPO&INPIT【課題】 内視鏡装置の挿入部から内視鏡用保護アダプタが脱落しかけたときに、ユーザにいち早く知らせ、内視鏡用保護アダプタが検査対象物内に脱落することを事前に防ぐこと。【解決手段】 内視鏡用保護アダプタ20は、内視鏡装置1の挿入部7の先端部8に着脱自在な保護管21と、ネジ部が緩んで保護管21が先端部8からの脱着方向に移動したときに内視鏡装置1の撮像部の画角内に映り込むように保護管に設けられた反射体23と、を具備する。【選択図】図2
