Anastomat with wear-resistant trigger mechanism

Abstract

The invention discloses an anastomat with a wear-resistant trigger mechanism, and belongs to the technical field of medical instruments. The anastomat comprises a shell, wherein a supporting rod is fixedly connected to the inner wall of the shell, a rotating handle is rotatably connected to the surface of the supporting rod, and the rotating handle penetrates through the shell and extends to the outside of the shell; a torsion spring fixedly connected with the rotating handle is fixedly connected to the surface of a support rod, a triggering mechanism is fixedly connected to the top of the rotating handle, and a first spring is fixedly connected to the left side of the inner wall of the shell. A roller and a wear-resistant layer are arranged, when a triggering plate drives a triggering rod to move to left, the roller is in contact with the bottom of the triggering rod and helical teeth, and the roller rotates due to rotation of the triggering mechanism, so that friction force between the triggering plate and the triggering rod is reduced, the abrasion degree between the triggering plate and the triggering rod is reduced, the stability of the anastomat is improved, and the service life of the anastomat is also prolonged.

Description

technical field [0001] The invention relates to the technical field of medical instruments, more specifically, to a stapler with a wear-resistant trigger 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 are used in medicine to replace traditional manual suturing equipment. Due to the development of modern science and technology and the improvement of production technology, the clinically used staplers are reliable in quality, easy to use, tight and suitable for tightness, and especially fast in suturing. , simple operation, few side effects and surgical complications, etc., also enables tumor resection that was unresectable in the past. [0003] When the stapler is performing surger...

AI Technical Summary

Problems solved by technology

[0003] When the stapler is performing surgery, the trigger mechanism drives the firing rod to move, so as to fire the stapler to complete the anastomosis operation. However, there is often friction between the trigger mechanism and the firing rod, and the contact parts will wear out due to frequent friction, which may easily cause the trigger mechanism to push Slippage occurs when the rod is fired, which affects the stapling effect of the stapler. Therefore, those skilled in the art provide a stapler with a wear-resistant trigger mechanism to solve the problems raised in the above-mentioned background technology

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