Rivet-free snake bone assembly for endoscope

Abstract

The invention discloses a rivet-free snake bone assembly for an endoscope. The rivet-free snake bone assembly comprises a head end section and a rear section, and n sets of middle sections are arranged between the head end section and the rear section; each middle section is composed of a first middle section and a second middle section; n first middle sections and n second middle sections are arranged between the head end section and the rear section at intervals; the head end section and the first middle sections, the first middle sections and the second middle sections, and the second middle sections and the rear section are connected through two connecting sets of snap ring hinge structures; one engaging lug of one part can rotate relative to a connecting groove of a part connected with the engaging lug; two engaging lugs of the same part form a rotation center, and thus the snake bone assembly bends. By means of the rivet-free snake bone assembly for the endoscope, through the connecting sets of the snap ring hinge structures, connection of adjacent parts is achieved, cut corners are formed at the two sides of each connecting set, which guarantees that the snake bone can flexibly rotate, and guarantees that all units of the snap ring hinge cannot scatter, thus a rivet structure is omitted, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to an endoscope component used in minimally invasive surgical medicine for internal inspection, diagnosis and treatment of a human body, in particular to a rivetless snake bone assembly for an endoscope. Background technique [0002] When the endoscope is in normal operation, it is necessary to manually control the tip of the insertion tube to make an angle bending action, and the part that controls the tip to bend upwards, downwards, leftwards, and rightwards is the snake bone assembly. [0003] Existing snake bone components are made of stainless steel tubes by wire cutting or laser cutting into multiple units, and the multiple units are connected in series by rod riveting to form a component, and then completed by riveting or welding steel wire rope fixing rings, polishing and deburring. The production of finished products. Its manufacturing process is complicated, and the precision of the manufacturing process is extremely hi...

AI Technical Summary

Problems solved by technology

Its manufacturing process is complex, and the manufacturing process requires extremely high precision.

Therefore, the existing curved snake bone components are time-consuming and labor-intensive from the selection of raw materials to the completion of processing, with long processing cycles and high costs.

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