PROBLEM TO BE SOLVED: To provide an accretion removal device capable of removing accretion attached to a transparent member such as a lens of a camera by a simple constitution.SOLUTION: An accretion removal device 1 comprises: an ejection nozzle 42 which is mounted to an endoscope insertion part 20 for imaging a subject and ejects an impulse wave toward a transparent window 24 of the endoscope insertion part 20； an impulse wave generation part 52 which generates the impulse wave ejected from the ejection nozzle 42； and an ejection control part 53 which controls the ejection of the impulse wave ejected from the ejection nozzle 42.SELECTED DRAWING: Figure 1【課題】簡素な構成でカメラのレンズ等の透明な部材に付着した付着物を除去できる付着物除去装置を提案すること。【解決手段】付着物除去装置１は、被写体を撮像する内視鏡挿入部２０に取り付けられ、この内視鏡挿入部２０の透明窓２４に向けて衝撃波を噴出する噴出ノズル４２と、噴出ノズル４２から噴出される衝撃波を発生する衝撃波発生部５２と、噴出ノズル４２から噴出される衝撃波の噴出を制御する噴出制御部５３と、を備える。【選択図】図１
