| 摘要 |
PROBLEM TO BE SOLVED: To provide an endoscope guiding tube device of which the shape is changed passively in accordance with change in the shape of an insertion unit of a flexible endoscope and which can stably maintain the shape, is light and easy to use and of which the diameter is easily reduced and which therefore is easily inserted from a mouth together with the insertion unit of the flexible endoscope. SOLUTION: A flexible insertion tube 1 is provided with bending portions 11, 12 and 13 to which a plurality of barrel-shaped joint rings 7 are freely turnably connected. The bending portions 11, 12 and 13 each of which the shape can be freely changed passively in accordance with the change in the shape of the flexible endoscope 50 inserted into an endoscope guiding channel 4, and tip ends of at least three bent shape holding wires 15 for holding the shape are connected to the tip portion of the bending portions 11, 12 and 13. An operation unit 2 is provided with wire locking operation units (22 and 27 or the like) capable of freely fixing and unfixing the proximal ends of all the bent shape holding wires 15. COPYRIGHT: (C)2009,JPO&INPIT
|
