Forceps for vertebral body back wall

Abstract

The invention discloses a pair of forceps for vertebral body back wall. The pair of forceps comprises a fixed handle, a movable handle, an upper forceps, a lower forceps and a support spring assembly, wherein the back end of the upper forceps is bent upwards and is fixedly connected with the fixed handle into an integral structure; the back end of the lower forceps is connected with the movable handle, and the movable handle is hinged to the fixed handle, is moved to the setting direction of the fixed handle by using the inner lower side of a crossing point of the fixed handle and the upper forceps as a support point, is translated upwards, and is engaged with the upper forceps to cut the bone block; the support spring assembly is arranged between the fixed handle and the movable handle, and is used for resetting the movable handle; the front part of the upper forceps is provided with a cross section suitable for spinal cord, so as to obtain a wedge for relieving pressure in front of the spinal cord. The pair of forceps has the advantages that the structure is reasonable, the design is skillful, the operation is convenient, the mechanics principle and operation habit are met, the disturbance and injury to nerves when the vertebral body back wall is cut via the back path are well avoided, and the pair of forceps is suitable for being popularized and applied.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a vertebral posterior wall forceps. Background technique [0002] For the ventral decompression of the posterior laminer nerve, the current treatment method is to use the posterior wall knife and other auxiliary tools for operation. [0003] However, the defect in the above-mentioned operation method is: because the posterior wall knife bypasses the spinal cord from above, and then knocks down with a tool to realize the excision of the bone block, thus violent operation cannot be avoided during operation, not only when knocking down, it is easy to cause The damaged surface is too large (like a collapse), and the bone block itself is prone to overturn and displacement due to operation vibration. In this way, it will not only increase the difficulty of bone block removal, but also easily cause interference to the compressed nerve, and even damage nerves. Contents of ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of vertebral body posterior wall forceps, which solves the problems of difficult removal and easy interference and damage to nerves when using a posterior wall knife to remove bone blocks

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