PROBLEM TO BE SOLVED: To reduce a pressure difference with a simple structure without communicating an internal space with an external space when the pressure difference is generated between the internal space and the external space (a sterilization chamber) of the endoscope which is sterilized in the sterilization chamber of the sterilization device.SOLUTION: An endoscope device includes: the endoscope 10 having a hand operation part 12, an insertion part 14 whose base part is connected to the hand operation part 12, a universal cable 16 whose base part is connected to the hand operation part 12, and a connector 18 connected the end of the universal cable 16 a communication hole 58 formed in the endoscope 10 and communicating the internal space 56 with the external space 68 of the endoscope 10 and a balloon member 60 connected to the communication hole 58 and expandable by the pressure difference between the internal space 56 and the external space 68.COPYRIGHT: (C)2013,JPO&INPIT【課題】滅菌装置の滅菌室で滅菌される内視鏡の内部空間と外部空間(滅菌室)との圧力差が生じた時に、内部空間と外部空間とを連通することなく且つ簡単な構成で圧力差を減少することができる。【解決手段】手元操作部12、該手元操作部12に基端部が連結された挿入部14、該手元操作部12に基端部が連結されたユニバーサルケーブル16、及び該ユニバーサルケーブル16の先端部に連結されたコネクタ18を有する内視鏡10と、内視鏡10に形成され、該内視鏡10の内部空間56と外部空間68とを連通する連通口58と、連通口58に連結され、内部空間56と外部空間68との圧力差によって膨縮可能なバルーン部材60と、を備えた。【選択図】図6
