| 摘要 |
PROBLEM TO BE SOLVED: To provide a bend stopper of a flexible tube of an endoscope preventing bend stopping rubber from being easily detached from a connection ring even when rotating force around an axis acts during use after immersion in washing liquid or disinfecting liquid or the like is repeated, and preventing the decline of a bend stopping function and the intrusion of dirty liquid into the bend stopping rubber or the like. SOLUTION: The bend stopper of the flexible tube of the endoscope comprises the bend stopping rubber 11 composed of an elastic rubber material arranged in the state of surrounding the vicinity of the connection end of the flexible tube 1 connected to the rigid body part 2 of the endoscope, and a metallic connection ring 12 to which the base part of the bend stopping rubber 11 is integrally put on and joined to the outer peripheral part and which is provided so as to be freely screwed and detached to/from the rigid body part 2. In the bend stopper, at the outer peripheral part of the connection ring 12, a rotation regulating groove 17 to which the rubber material forming the bend stopping rubber 11 is fitted to regulate relative rotation around the axis between the bend stopping rubber 11 and the connection ring 12 is formed. COPYRIGHT: (C)2008,JPO&INPIT
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