| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluid conduit switching device for an endoscope to be used for a gas/water feed button, etc., of an endoscope, capable of reducing the number of components, permitting appropriate pressing of a button, and capable of reducing loads applied to a cylinder, etc., and an endoscope using the switching device. <P>SOLUTION: The fluid conduit switching device includes: a cylinder to which a conduit of the endoscope is connected; a button including a piston to be housed in the cylinder movably in the axial direction, a button head attached to the upper end of the piston, and a plurality of packing materials to air-tightly divide inside of the cylinder in the axial direction; and a button socket having a through-hole for the piston to penetrate and attached to an operating part of the endoscope with the through-hole communicating with inside of the cylinder. The lower end of the button head is always inserted into the through-hole of the button socket, and the lower end of the button head functions as a guide member to move the button only in the axial direction of the cylinder. <P>COPYRIGHT: (C)2013,JPO&INPIT |
