A rotatable probe bending structure for endoscope

A rotary, endoscope technology, applied to endoscopes, gastroscopes, applications, etc., can solve the problems of rigid endoscopes that cannot flexibly change directions, the imaging effect is not as good as rigid endoscopes, and cannot be observed in specific parts. , to achieve the effect of improving the utilization rate of the ring, reducing the space required for work, and being easy to operate.

CN109008908BActive Publication Date: 2020-05-22ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-05-22

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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.
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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...

Examples

Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] Such as figure 1 As shown, an embodiment of the invention includes a probe tip portion and a pull handle portion.

[0036] Such as figure 2 As shown, the end part of the probe includes a top cover cylinder 1, a bottom support sleeve 2, a connecting sleeve 3 and a ring 4 which are sequentially connected coaxially, the top cover cylinder 1 and the bottom support sleeve 2 are threaded, and the other end of the bottom support sleeve 2 and the One end of the connecting sleeve 3 is rotatably socketed, and a plurality of circular rings 4 are coaxially connected in series and then hinged to the other end of the connecting sleeve 3; the two outer walls of the top cover tube 1 are symmetrically provided with two strip grooves, the top The end surface of the cover tube 1 close to the bottom support sleeve 2 is provided with an annular groove for constraining and accommo...