Forceps lifting transmission mechanism and endoscope

Abstract

The invention relates to the technical field of medical equipment, and provides a forceps lifting transmission mechanism and an endoscope. The forceps lifting transmission mechanism comprises a movable part, a fixed part, a connecting rod mechanism and a traction part; the movable part is rotatably installed on the fixed part, the connecting rod mechanism is connected with the movable part, the traction part is connected with the connecting rod mechanism, the connecting rod mechanism can be driven to move by controlling the movable part to move, and then the traction part is driven to conductthe traction action; a limiting structure is arranged between the movable part and the fixed part, the limiting structure comprises an arc-shaped sliding groove and a limiting block, when the movablepart is controlled to rotate, the limiting block can slide in the arc-shaped sliding groove, the limiting structure is used for limiting the movable part so as to make the movable part to move betweena first limit position and a second limit position, when the movable part moves to reach the first limit position or the second limit position, due to the fact that no force exists in the connectingrod mechanism or torque is applied to the connecting rod mechanism, loss of the transmission part can be reduced, and the stability and sensitivity of a forceps lifting device are improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a forceps lifting transmission mechanism and an endoscope. Background technique [0002] Endoscopes are widely used in medical and industrial fields, and are usually used to extend into pipelines or body cavities, and obtain images of corresponding parts through the optical system at the head end for observation, photography and diagnosis. The forceps lifting mechanism of the endoscope operating part can lift or lower the forceps lifter. The existing forceps lifting transmission mechanism is provided with a swing bar, a connecting rod and a slider. The rod pulls the slider to move along the slideway, and the slider, the transfer rod and the wire rope are connected in sequence, so that the wire rope extending to the head end drives the jaw lifter to move. When the clamp lifter is lifted, the position of the clamp lifter is realized by limiting the rotation position of...

AI Technical Summary

Problems solved by technology

Due to the frequent use of the forceps lifting mechanism during the use of the endoscope, the limit position of the rotation is required to be stable, accurate and not easily deformed during long-term use, so as to ensure the stability and sensitivity of the forceps lifting device. In the limiting method of the prior art, when the slider is limited by the limiting plate, it reacts on the entire transmission mechanism, and the long-term repeated action makes the internal mechanism of the endoscope loose, resulting in movement deviation of the mechanism, so that the forceps lifter poor stability and sensitivity, therefore, it is necessary to provide a new technical solution to solve the problems in the above-mentioned prior art

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