PROBLEM TO BE SOLVED: To provide a fixing device which can easily and surely attach a medical tool with a simple operation.SOLUTION: A fixing device 10 comprises a main body 20 which is attached to a base 110 on which a medical tool 5 can be mounted, and an arm 32 attached to the main body 20 and fixes the medical tool 5 between the arm and the base 110 by energization force.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】簡単な操作で容易且つ確実に医療用具を着脱可能な固定装置等を提供する。【解決手段】固定装置10は、医療用具5が載置可能な基台110に取り付けられる本体20と、本体20に取り付けられ、医療用具5を基台110との間で付勢力によって固定するアーム32と、を備えている。【選択図】図1