Structure of endoscope operating unit

Abstract

The endoscope operating part structure has: the operating part main body (23), which has a rectangular opening (24a), and is provided with a plurality of screw seat parts (61-63); The part (24a) is inserted into the operation part main body (23), and has a plurality of fixing parts (41-43) fixed on a plurality of screw seat parts (61-63) by a fixing part (51), and a plurality of fixing parts ( The two fixing parts (42, 43) in 41-43) protrude from different side parts of the frame member (40) toward the direction of departure perpendicular to the longitudinal direction, and the positions of the two fixing parts (42, 43) The widthwise lengths (L1, L2) of the frame member (40) perpendicular to the longitudinal direction are longer than the longitudinal length (L4) of the opening (24a) and shorter than the diagonal length (L5).

Description

technical field [0001] The present invention relates to the structure of an endoscope operating part provided with a frame inside. Background technique [0002] In order to observe difficult-to-observe sites such as inside a living body or inside a structure, endoscopes that can be introduced from the outside of the living body or the inside of a structure are widely known. Generally, such an endoscope is provided with an insertion portion continuously on the operation portion, and an observation window is provided at the tip of the insertion portion. [0003] In addition, in the endoscope, the bending section provided on the insertion section is bent while the operation section is held, and the insertion section is inserted into the observation section in the subject for observation, treatment, and the like. Therefore, in an endoscope, the operation section provided continuously with the insertion section needs to have sufficient strength. For example, a bottom plate as a ...

AI Technical Summary

Problems solved by technology

[0006] However, when the width of the bottom plate becomes narrower, the positions of the screws that fix the bottom plate to the operation unit case become closer, and there is a problem that the fixing strength of the bottom plate to the operation unit case decreases.

In this way, if the fixing strength of the base plate to the operation unit case is insufficient, the base plate tends to loosen in the vibration direction, resulting in reduced durability.

[0007] Furthermore, as in JP Unexamined Publication No. 11-192199, when adopting a structure in which stoppers are provided on the thick wall portion of the base plate to increase the fixing strength, the number of parts increases, so there are increased number of assembly steps, increased cost, and increased weight. big problem

Images