Surgical operating instrument

Abstract

The invention relates to a surgical operating instrument, and belongs to the technical field of medical instruments. The surgical operating instrument comprises a handle assembly and a driving assembly, wherein the handle assembly comprises a holding shell capable of achieving a holding function and a motor arranged in the holding shell; the working head assembly comprises a butt joint shell detachably connected with the holding shell and a cutter installed on the butt joint shell, the cutter comprises a connector assembly installed on the butt joint shell, an outer pipe and an inner pipe, the outer pipe and the inner pipe are installed on the connector assembly, the inner pipe is located in the outer pipe, and the inner pipe and the outer pipe are parallel and coaxially arranged; a liquid backflow cavity is formed in the butt joint shell, and a through hole used for communicating the inner pipe with the liquid backflow cavity is formed in the connector assembly. Liquid in the human body is sucked into the through hole along the inner tube and is sucked into the liquid backflow cavity through the through hole; wherein the number of the working head assemblies is at least two, one of the working head assemblies is selectively installed on the handle assembly, and the models and / or sizes of cutters of the at least two working head assemblies are different.

Description

technical field [0001] The invention relates to a surgical instrument and belongs to the technical field of medical instruments. Background technique [0002] As we all know, the main function of the planer device is to treat bone, cartilage tissue and even burr bone by planing, excision, trimming, grinding, etc., and prepare for subsequent surgery. [0003] At present, the handle of the planing knife in the prior art has an integrated structure. The handle includes a handle part and a docking part. The handle part is provided with a motor, and the docking part is inserted to install the knife. The knife and the handle are detachably connected. When the tool needs to be replaced, it is only necessary to pull out the tool from the handle. However, the existing planer has the following problems: in order to adapt to different surgical needs, the tool has different models and sizes, so that the size of the interface component and the The shapes and structures are different, so...

AI Technical Summary

Problems solved by technology

When the tool needs to be replaced, it is only necessary to pull the tool out from the handle. However, the existing planer has the following problems: in order to be suitable for different surgical needs, the tools have different models and sizes, so that the size and size of the interface components The shape and structure are different, so that in the prior art, different knives can only be matched with the corresponding handle, which causes the problem of low versatility of the handle

Images