To provide a raising base or the like capable of facilitating washing of an endoscope by being detached after an endoscopic examination.SOLUTION: A raising base 80 comprises a lever turnably arranged on a tip of an insertion part, and a turning part for turning the lever, and comprises: a first raising part 831 which can be detachably attached to an endoscope and has a dent part on one surface； a second raising part 832 protruding from an end of the first raising part 831； and a lever connection part 81 provided on an end of the second raising part 832, and connected to a lever. The raising base is formed of a material having tensile yield stress of 40 MPa or greater.SELECTED DRAWING: Figure 14【課題】内視鏡検査後に取り外すことにより内視鏡の洗浄を容易にする起上台等を提供すること。【解決手段】起上台８０は、挿入部の先端に回動可能に設けられたレバーと、レバーを回動させる回動部とを備え，内視鏡に着脱可能で、一面に窪み部を有する第１起上部８３１と、第１起上部８３１の端から突出する第２起上部８３２と、第２起上部８３２の端部に設けられており、レバーに連結するレバー連結部８１とを備え、引張降伏応力が４０メガパスカル以上の材料により形成されている。【選択図】図１４
