Repairing fixator with nail removing function

Abstract

The invention provides a repairing fixatorwith a nail removing function. The repairing fixator comprises a forward triggertransmission assembly, an outer tube assembly, a grip and a shell, the grip is in meshing transmission with the forward triggertransmission assembly. Therepairing fixatoris characterized by furthercomprising a function switching assembly,a reverse nail removingtransmissionassembly anda trigger, the trigger is in meshing transmission withthe reverse nail removingtransmissionassembly, the function switching assemblyis rotatably connected with the outer tube assembly in a driving mode, the forward triggertransmission assembly and thereverse nail removingtransmissionassembly are locked in a mutual exclusion mode or mesh through the function switching assembly, andthe outer tube assembly is driven to trigger rotatbly in the forward direction or remove nails rotatably in the reverse direction by the meshingforward triggertransmission assembly or thereverse nail removingtransmissionassembly. Thoughareverse rotation mechanism, and only the trigger isneeded to be pulled when the nailsare taken, so that the screwnails can be reversely rotated so as to achieve the purpose of quickly and accurately removing the screwnails.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a repairing and fixing device for fixing a patch on a tissue. Background technique [0002] The repair fixator is an instrument used to fix the hernia repair patch on human tissue. Its working principle is to fix the patch on the tissue by nailing the nails in the repair fixer to the patch and tissue. According to the different shape and structure of the nail of the fixer, it can be divided into a spiral nail and a nail-shaped nail with an undercut. [0003] When fixing nails in clinical operations, doctors can only judge whether there are blood vessels in the nailed part based on experience and visually observed tissue conditions, and it is difficult to accurately judge, so nails may be stuck on blood vessels and cause bleeding. Faced with this situation, the nail-shaped nail with an undercut cannot be taken out so that the doctor has to cut the tissue or take other mea...

AI Technical Summary

Problems solved by technology

[0004] At present, all manufacturers use the method of reverse rotation of the whole instrument to remove the screw from the tissue, so that the screw is reversely rotated from the tissue and withdrawn from the tissue. This method of removing the screw is not convenient for doctors to operate. In addition, it is usually necessary to reversely rotate the instrument for more than 3 turns to remove the nail, and the operation speed is slow, which is not conducive to rapid hemostasis

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