A stapler with a safety mechanism for preventing misfiring

Abstract

The invention discloses a stapler with an anti-misfiring safety mechanism, which belongs to the technical field of medical devices. The main points of the technical solution include a fixed box, the left side of the fixed box is fixedly connected with a staple magazine seat, and the top of the fixed box A connection cover is provided, and the left side of the connection cover is fixedly connected with a nail abutment seat. The interior of the fixed box is provided with a slide chamber from left to right. The present invention sets a second rack, when the medical staff presses the second tooth When the rack is rotated, the first rack can be quickly rotated through the second gear, so that after the first rack is separated from the first gear, the staff can turn the rotating handle normally, and with the use of the first spring, when the medical staff releases the second gear After the second rack, the first spring can quickly drive the second rack to move outward without the need for the staff to manually reset the second rack, so that the second rack can quickly reverse the first rack through the second gear, and the first The gears are firmly fixed, thereby having a good limiting effect.

Description

technical field [0001] The invention relates to the technical field of medical instruments, more specifically, to a stapler with an anti-misfire safety mechanism. Background technique [0002] The stapler is the first stapler in the world. It has been used for gastrointestinal anastomosis for nearly a century. It was not until 1978 that the tubular stapler was widely used in gastrointestinal surgery. It is generally divided into one-time or multiple-use staplers, imported or domestic staplers. It is a device used in medicine to replace traditional manual suturing. Due to the development of modern technology and the improvement of production technology, the clinically used stapler is reliable in quality, easy to use, tight and suitable, especially its fast suturing, easy operation and There are few side effects and surgical complications, and it also enables tumor resection that was unresectable in the past. [0003] After searching, the Chinese patent discloses a linear cu...

AI Technical Summary

Problems solved by technology

[0003] After searching, the Chinese patent discloses a linear cutting stapler (publication number is CN103126735A). This patented technology changes the traditional push-type firing principle, changes the rotating force into a driving force, and makes the firing force stable, thereby greatly reducing It meets the requirements of the user, improves the accuracy of firing, greatly reduces the risk of surgery during the operation, and improves the safety of the entire operation. However, the limit attachment in this patent is only the rotating handle After reaching the designated position, the limit attachment can limit the rotation handle, which reduces the practicability of the limit attachment, thereby increasing the risk of surgery

Images