PROBLEM TO BE SOLVED: To provide a leak tester for an endoscope suitable for detecting a fine hole.SOLUTION: A leak tester for an endoscope equipped with a flexible insertion tube is composed of a hollow member having a first opening and second opening through which the insertion tube is inserted, a first closing mechanism and a second closing mechanism for making the inside of the hollow member airtight by closing the first opening and the second opening, first pressurizing means for pressurizing the inside of the hollow member which is made airtight, and a pressure detection part for detecting the pressure of the inside of the pressurized hollow member. In this configuration, the volume of the airtight space inside the hollow member when the first closing mechanism and the second closing mechanism are closing the first opening and the second opening respectively is smaller than the volume of the inside of the insertion pipe in a state that the insertion pipe is inserted into the first opening and the second opening.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】微小な穴を検知するのに好適な内視鏡用リークテスタを提供する。【解決手段】可撓性を有する挿入管を備えた内視鏡用のリークテスタを、挿入管が挿通される第1開口部及び第2開口部を有する中空部材と、第1開口部及び第2開口部を閉塞することによって中空部材の内部を気密する第1閉塞機構及び第2閉塞機構と、気密された中空部材の内部を加圧する第1加圧手段と、加圧された中空部材の内部の圧力を検知する圧力検知部と、から構成する。この構成において、挿入管が第1開口部及び第2開口部に挿通された状態で、第1閉塞機構及び第2閉塞機構がそれぞれ第1開口部及び第2開口部を閉塞しているときの中空部材の内部の気密された空間の容積が、挿入管の内部の容積よりも小さい。【選択図】図1
