PROBLEM TO BE SOLVED: To provide a mechanism which allows an indicator to be easily installed in an instrument for confirming the sterilization effect in sterilization treatment.SOLUTION: An installation device of an instrument for confirming the sterilization allows the instrument including an accommodation chamber for accommodating an indicator which is connected to a door of a sterilization chamber and detects the sterilization effect and an introduction tube which introduces a sterilization gas into the accommodation chamber for detecting the sterilization effect to be installed in the vicinity of an inner wall of the door of the sterilization chamber. The installation device is disposed such that the accommodation chamber is opened for insertion of the indicator when the door of the sterilization chamber is opened, and that the inner wall and an aperture are contacted to seal the opened accommodation chamber with the inner wall when the door of the sterilization chamber is closed.COPYRIGHT: (C)2014,JPO&INPIT【課題】滅菌処理する時に、滅菌の効果を確認する機器の中に簡単にインジケータを装着できる仕組みを提供すること。【解決手段】滅菌室ドアに連結され、滅菌効果を検出するインジケータを収納する収納室と、滅菌効果を検出するために滅菌ガスを収納室に導入する導入菅とで構成される滅菌確認機器を滅菌室ドアの内壁の近傍に設置する滅菌確認機器の設置装置が、滅菌室ドアが開いた場合には、インジケータを挿入可能なように収納室を開口し、滅菌室ドアが閉じた場合には、内壁と開口部とを接触させて開口された収納室と内壁とが密閉されるように配置する。【選択図】 図1