Intervertebral disc resection device

Abstract

The invention relates to an intervertebral disc resection device, comprising a knocking column and a cutting pipe. The cutting pipe is fixedly arranged at one end of the knocking column, and the central axis of the knocking column coincides with the central axis of the cutting pipe; a hollow hole channel extending along the central axis is formed in the cutting pipe. The hollow hole channel penetrates through the knocking column and the cutting pipe; the cross sections of the cutting pipe and the hollow hole channel are square; a knife edge is arranged at the end, away from the knocking column, of the cutting pipe, the knife edge is provided with inward knife edge openings inclining towards the interior of the hollow hole channel, and the inward knife edge openings are distributed on the four edges of the square cross section of the cutting pipe. According to the intervertebral disc resection device, the tedious step of cutting four edges one by one can be saved in a chipping hammer mode, the resection edges can be tidied, the operation view can be cleared, the tedious process of taking out resection intervertebral disc chippings one by one is avoided, and accidental injuries caused by sharp edges of a scalpel or an osteotome in the cutting process can be avoided.

Description

Technical field [0001] The present invention relates to the field of medical devices, and more particularly to a disc excess. Background technique [0002] At present, the method of clinically common fiber ring for resection of the outer layer of the intervertebral disc is still using the most traditional old way to solve the problem, that is, the use of traditional surgery knife, for fiber rings of calcified or severe bone, the scalpel can not smoothly cut fibers The ring, or even because of the impervoltage of important nerves, the hard ridge film around the loss of hand damage, the main method is to cut the four edges along the upper and lower sides of the intervertebral clearance, but this method is that each cutting It is necessary to confirm the edge of the osteocardial disc, which has a long-term injury to the vertebral cortex, which is too small. It does not satisfy the scope of the resection. It is necessary to expand the resection again. When such operation cost, labor,...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned lumbar disc extractor can cut part of the intervertebral disc, its shape is bulky, and the operation field of view is blocked during the operation, and the operation is cumbersome. During the process, it is still necessary to cooperate with a scalpel or an osteotomy knife to clean up the remaining part outside the circular cutting range

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