| 摘要 |
An endoscope according to the present invention is equipped with: an elongated insertion portion to be inserted into a subject; a mounting portion on which a cylindrical external device is mounted, the mounting portion being provided on the insertion portion; and a locking member for preventing the external device from detaching from the insertion portion, the locking member being in contact with a surface facing the distal end of the external device and disposed to the distal end side from the mounting portion of the insertion portion. |
