| 摘要 |
PROBLEM TO BE SOLVED: To provide a bent tube of an endoscope permitting mass production by aligning joint rings. SOLUTION: In the bent tube of the endoscope, a plurality of joint rings 62 are rotatably connected one after another. Each joint ring 62 comprises a circular base part 64, a pair of hinge parts 66 and 67 on one side of the base part, and another pair of hinge parts 68 and 69 on the other side. The joint ring 62 has bent parts 66b and 69b for defining the direction. COPYRIGHT: (C)2009,JPO&INPIT
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