Percussion safety mechanism of cutting anastomat, percussion device and anastomat thereof

Abstract

The invention provides a percussion safety mechanism of a cutting anastomat, a percussion device and an anastomat thereof. The percussion safety mechanism comprises a nail abutting base and a nail cabin base; the nail abutting base and the nail cabin base are arranged in a manner that the nail abutting base and the nail cabin base are corresponding to each other in a vertical direction; a nail cabin is fixedly installed on the nail cabin base; a cutting groove is formed in the middle of the nail cabin; a fixing base is fixedly installed at the bottom of a limiting sliding groove; a traction rope is arranged on a plurality of turning gears in a lap-joint manner; the turning gears are movably installed in the nail abutting base through rotating shafts; a traction hydraulic cylinder is fixedly installed in the nail abutting base; the end, away from a piston, of a reset spring is fixedly connected to the inner wall of a cylinder body. According to the percussion safety mechanism of the cutting anastomat, the percussion device and the anastomat thereof of the invention, a sensing hydraulic cylinder block is adopted, a safety unit can be automatically released and locked without any additional operation, meanwhile, the width of a tissue needing to be sutured can be sensed, the poor suturing condition caused when the sutured tissue is too wide or too narrow is effectively avoided; and stable supporting force can be generated in the closing process of the nail abutting base and the nail cabin base, so that a tissue damage condition caused by rapid closing of the nail abutting base and the nail cabin base is prevented, and the safety of the anastomosis process is ensured.

Description

technical field [0001] The invention relates to the technical field of medical staplers, in particular to a firing safety mechanism of a cutting stapler, a firing device and a stapler thereof. Background technique [0002] In the prior art, the application number is "CN201721636418.7", a linear cutting stapler with a firing safety function, including a handle, a component splint, a firing component, a nail pushing plate and a staple cartridge; one end of the component splint is set in the handle; The firing assembly is slidably connected with the splint of the assembly, and pushes the nail pushing plate to extend into the nail bin; the firing assembly includes a slider; it also includes a safety mechanism; the safety mechanism includes a limit assembly and a switch assembly; to the installation slot on the rear end face; the side wall of the component splint is provided with a limit through hole; the limit component is installed in the installation groove, and cooperates wit...

AI Technical Summary

Problems solved by technology

[0003] However, the anti-secondary firing safety mechanism of the above-mentioned linear cutting stapler still has obvious defects during use: 1. After the above-mentioned device clamps the tissue, it prevents misoperation through the safety mechanism provided by itself, but the safety mechanism It needs to be released manually, and after the clipping is completed, the safety hook needs to be disengaged manually, which is not conducive to the rapid cutting and suturing of tissues; 2. The above-mentioned device cannot evaluate the tissue that needs to be sutured, because the stapler has the optimal suturing width, which is lower than the optimal suturing width. When the optimal suturing width or the width of the tissue to be sutured is too large, it may lead to poor suturing, and the stapler of the prior art usually requires the physician to judge by himself. Unable to perform inductive locking; 3. The stapler in the prior art is similar to a splint structure, and the force is relatively strong during the clamping process, which is easy to damage the tissue

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