Hook device for liver and gallbladder surgery

Abstract

The invention belongs to the technical field of medical apparatus and instruments, particularly relates to a hook device for liver and gallbladder surgery. The hook device comprises an annular supporting plate, an annular containing cavity is formed in the annular supporting plate, first opening parts and second opening parts are formed in the upper end face of the annular supporting plate, the annular containing cavity communicates with the first opening parts and the second opening parts, and a first gear and second gears which are in transmission fit are arranged in the annular containing cavity; a plurality of stand columns are arranged on the upper end face of the first gear, the upper end of each stand column extends out of the corresponding first opening part and is provided with a first limiting plate, adjusting bolts and a second limiting plate, the adjusting bolts are connected with threaded rods in an inner threaded mode, one end of each threaded rod penetrates through the corresponding first limiting plate and is provided with a hook, the other ends of the threaded rods penetrate through the second limiting plates, and the upper ends of the second gears extend out of the second opening parts and are provided with handles. According to the hook device, fine adjustment can be achieved by fixedly arranging the hooks on the first gear and adjusting the positions of the first gear and the hooks through the second gears, and thus the accuracy of operation is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a hook device for hepatobiliary surgery. Background technique [0002] The main work of the Department of Hepatobiliary Surgery is to study and treat major diseases that seriously threaten the health of the Chinese people, such as hepatocellular carcinoma, hepatolithiasis, post-hepatitic cirrhosis, and acute liver failure caused by severe hepatitis. Stones in the bile duct. In the common diseases of hepatobiliary surgery, it is usually necessary to operate on the relevant parts, and the cortex, ligaments, muscles and other tissues at the surgical incision need to be retracted to expose the surgical field. In this process, a hook device is needed. Without affecting the doctor's field of vision during the operation, the traditional hook device uses multiple hooks to pull the surgical incision outward from different directions. One end of the hook is fixedly connected to th...

AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that the structure needs to be fixed on the operating table by a hook during use, or two hooks are used together to overlap each other for fixing, and there is still a technical problem that the traditional hook is not stable during the fixation process

[0004] Application publication number CN106037839A provides a hook device for hepatobiliary surgery, which includes a hook body, an annular ring, and a slideway. The hook body includes a hook, a pull rod, a fixing rod, and a screw. The fixing rod is a through-hole structure. The through hole in the fixed rod is spirally connected with a handle rod, the front end of the handle rod is hinged with a pull hook structure, the tail end of the handle rod is connected with a nut structure, and a screw structure is also installed on the fixed rod. The slideway is set in the annular ring, and the fixed rod is installed in the slideway of the annular ring through the screw structure; but the disadvantage of this structure is that the drag hook body needs to be manually rotated to determine the opening angle, but the accuracy and stability of manual operation The safety is not good, and the design of the retractor is easy to cause secondary damage to the surgical incision, thus affecting the postoperative recovery effect. In addition, the structure has never recorded the technical solution for the fixation of the hook device

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