Forced knife retracting device for disposable endoscopic cutter stapler

Abstract

The invention relates to a forced knife retracting device for a disposable endoscopic cutter stapler. The forced knife retracting device is suitable for being matched with the disposable endoscopic cutter stapler for use. The forced knife retracting device for the disposable endoscopic cutter stapler comprises a rack, a slider, rack pins, a pull hook, a pull hook reset spring, a square cotter, a reset handle, a rack push block and a rack push block spring, wherein the rack is mounted in a fixed handle sliding groove; the slider is provided with a sliding groove, is mounted on one side of the rack through the rack pins and slides along the sliding groove; the pull hook reset spring is mounted at the rear part of the rack, one end of the pull hook reset spring is fixed on the rack, the other end is nested on the pull hook, the reset handle is mounted at the rear end part of the rack, and the reset handle, the slider, the pull hook and the rack are connected together through the square cotter; a movable handle is mounted at the lower end of a fixed handle; the rack push block is mounted at the upper part of the movable handle through a movable handle pin, and the rack push block spring is nested on the movable handle pin.

Description

technical field [0001] The invention relates to a forced retracting device of a disposable laparoscopic cutting stapler, which is suitable for matching use with the disposable laparoscopic cutting stapler. Background technique [0002] At present, disposable laparoscopic cutting and staplers have been widely used in lung, stomach, colorectal and other operations. During the use of the laparoscopic cutting stapler, the doctor can grasp the position and state of the cut tissue at any time by observing the position of the cutting knife, making the operation process safer. However, the disposable laparoscopic cutting stapler sometimes needs to be adjusted in position during the kiss cutting process or the triggering part is locked due to unexpected circumstances. In this case, it is necessary to return the cutting knife, open the jaws, and clamp again, otherwise it will cause The operation cannot be carried out smoothly, which increases the risk of the operation and causes grea...

AI Technical Summary

Problems solved by technology

However, the disposable laparoscopic cutting stapler sometimes needs to be adjusted in position during the kiss cutting process or the triggering part is locked due to unexpected circumstances. In this case, it is necessary to return the cutting knife, open the jaws, and clamp again, otherwise it will cause The operation cannot be carried out smoothly, increasing the risk of the operation and causing greater harm to the patient

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