To provide a raising base or the like capable of facilitating washing of an endoscope by being detached after an endoscopic examination.SOLUTION: There is provided a raising base 80 which can be detachably attached to an endoscope comprising: a lever 60 turnably provided on a tip of an insertion part 30 of an endoscope; and a turning part 24 for turning the lever 60. The raising base 80 comprises: a first raising part having a dent part 84 on one surface; a second raising part protruding from an end of the first raising part; a lever connection part 81 provided on an end of the second raising part and connected to the lever 60; and a raising base fixing part 812 for fixing the lever connection part 81 and the lever 60.SELECTED DRAWING: Figure 19【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、内視鏡の挿入部30の先端に回動可能に設けられたレバー60と、該レバー60を回動させる回動部24とを備える内視鏡に着脱可能な起上台80において、一面に窪み部84を有する第1起上部と、前記第1起上部の端から突出する第2起上部と、前記第2起上部の端部に設けられており、前記レバー60に連結するレバー連結部81と、前記レバー連結部81と前記レバー60とを固定する起上台固定部812とを備える。【選択図】図19