A rotatable probe bending structure for endoscope

Abstract

The invention discloses a rotatable probe bending structure for an endoscope. The rotatable probe bending structure comprises a probe end part and a traction handle part. A top cover cylinder and a bottom supporting sleeve are fixed sleeved. The bottom supporting sleeve and the connecting sleeve are rotatably and movably sleeved. After a plurality of rings are coaxially hinged and serially connected, the rings are hinged with a connecting sleeve. A small sprocket wheel and a large sprocket wheel movably sleeve a central shaft. A rotating handwheel and a bent handwheel are provided with a central through hole and are provided with a circle of sawteeth. The rotating handwheel is coaxially connected with the large sprocket wheel through a small sleeve. The bent handwheel is coaxially connected with the small sprocket wheel through a large sleeve. The small sleeve and the large sleeve respectively sleeve the central shaft. The small sleeve is arranged between the large sleeve and the central shaft in a sleeving manner. The rotating handwheel rotates and drives the large sprocket wheel to rotate. The bent handwheel rotates and drives the small sprocket wheel. The rotatable probe bendingstructure can reduce space required for operation of the endoscope and improves working capability of the endoscope in a small space under a precondition of ensuring omnibearing observation of a front probe. The device body is made of steel with relatively high rigidity and toughness and can be used for an operating environment in the human body.

Description

technical field [0001] The invention relates to a probe device, in particular to a rotatable probe bending structure for an endoscope, which can be applied to a medical endoscope for gastrointestinal examination. Background technique [0002] The gastrointestinal tract is the largest immune organ in the human body, and it is also the largest detoxification organ in the human body. In recent years, gastric cancer, colon cancer, and esophageal cancer have become the top ten cancers in the incidence of malignant tumors. Observing the surface structure of the digestive tract mucosa is of great significance to the discovery and treatment of cancer. Endoscopy plays a key role in this field. It has been widely used in clinical treatment. [0003] Existing endoscopes can be divided into two types, i.e. rigid endoscopes and soft endoscopes. The rigid endoscope is a prism optical system, and the biggest advantage is that the image is clear, but the rigid endoscope itself cannot ch...

AI Technical Summary

Problems solved by technology

The rigid endoscope is a prism optical system, and the biggest advantage is that the image is clear, but the rigid endoscope itself cannot flexibly change the direction, and cannot perform detailed observation of specific parts

The lens direction of the flexible endoscope can be controlled by the operator, but its imaging effect is not as good as that of the rigid endoscope.

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