| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible tube of an endoscope with a shell to hardly form wrinkles on the surface as the shell is floated from a helical tube and to be hardly removed from the helical tube even if forces are repeatedly applied in the longitudinal direction of the flexible tube for the endoscope. SOLUTION: The flexible tube comprises a first resin tube part made of a resin material, the coil-shaped helical tube made of a metal material covering the outer periphery of the first resin tube part, and a second resin tube part made of the resin material covering the outer periphery of the helical tube. COPYRIGHT: (C)2004,JPO&NCIPI
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