A matching structure of a lever and a traction wheel, a handle and an endoscope

By introducing the limiting part, sliding support surface and elastic part into the lever and pulling wheel matching structure of the endoscope, the problem of uncomfortable fingers when plucking the lever is solved, and the stable sliding of the lever and the operator's comfort is improved.

CN119157463BActive Publication Date: 2025-03-28HUNAN HUAXIN MEDICAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411672175.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-03-28
Estimated Expiration
2044-11-21

AI Technical Summary

Technical Problem

The operator often feels uncomfortable when pulling the lever, resulting in discomfort and fatigue in operation.

Method used

A matching structure between the lever and the traction wheel is designed, including the matching relationship between the limiting part and the sliding support surface, and the elastic part provides a continuous driving force for the lever, so that the lever is always close to the rotation center side of the traction wheel.

Benefits of technology

Through this structure, the movement trajectory of the lever is effectively guided, so that the operator can keep the linear movement of the fingers consistent with the smooth sliding of the lever, significantly reducing the pressure and fatigue sensation of the finger joints, and improving the operator's comfort and control.

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Abstract

The present invention provides a matching structure of a lever and a traction wheel, a handle and an endoscope, and relates to the technical field of endoscopes. The matching structure of the present invention comprises a traction wheel, which is rotatably arranged in a handle housing; a lever, which is slidably connected to the traction wheel, and the handle housing is provided with a moving channel for the lever to pass through; a limiting portion is provided in one of the handle housing and the lever, and a sliding portion is provided in the other of the handle housing and the lever, and the outer surface of the sliding portion has a sliding support surface that is recessed toward the rotation center side of the traction wheel, and at least part of the limiting portion is slidably matched with the sliding support surface; an elastic portion is provided between the traction wheel and the lever, and the elastic portion drives the lever to always approach the rotation center side of the traction wheel so that the limiting portion is closely attached to the sliding support surface. Compared with the prior art, the present invention has the advantage of improving the finger comfort of the operator when shifting the lever.
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