| 摘要 |
PROBLEM TO BE SOLVED: To provide a curved surface structure of an endoscope for preventing a contact of a control wire with a coupling part of a nodal ring by providing a cutout groove or a cutout part on the coupling part of the nodal ring for constituting a curved surface of an endoscope inserting part. SOLUTION: The curved surface 22 of the endoscope 10 is constituted by coupling a plurality of nodal rings 40, 40, etc., on a ring. The adjacent nodal rings 40 and 40 are rotatably coupled by a caulking pin 48 after the coupling part 44 and the coupling part 46 are superposed. A guide hole 48A is formed at a distal end of the pin 48, the control wire 42 is inserted into the hole 48A, and guided. The cutout groove 50 is formed on the distal end of the part 46, the cutout hole 52 is formed at the end of the part 46, and hence a contact of the wire 42 with the part 46 is prevented. |
