Second cervical vertebra displacer with merging structure

Abstract

The invention relates to a second cervical vertebra displacer with a merging structure. The second cervical vertebra displacer comprises an atlas connecting part, a fixed connector and a third cervical vertebra connecting part, wherein the atlas connecting part is fixedly connected with the atlas through a hollow atlas bolt, at least one merging hole is arranged on the bolt body of the hollow atlas bolt, the merging hole is internally provided with bone particles, and a support merging device matched with the shape of the lower surface of the atlas is arranged at the lower part of the atlas connecting part. The second cervical vertebra displacer can integrate a vertebral merging device bolt and a vertebral body, and greatly enhance the connecting performance and the fixation performance of the displacer. The second cervical vertebra displacer has the advantages that the displacer is more reliable, and the length of the displacer can be adjusted as required.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a cervical vertebra prosthesis, specifically a second cervical vertebra displacer with a fusion structure. Background technique [0002] In daily life, cases of damage to the second cervical vertebra due to tumors, fractures, infections and other reasons occur from time to time. When treating these patients, the current method used is to implant an intervertebral fusion device with the same length as the original second cervical vertebra between the damaged vertebral bodies, so that the bone tissue can crawl and replace, thereby repairing the damaged vertebral bodies. This kind of intervertebral fusion device is pre-prepared before the patient's treatment. During the surgical treatment, the intervertebral fusion device is trimmed according to the actual length of the damaged vertebral body, and then implanted into the damaged vertebral body. The existing intervertebral fu...

AI Technical Summary

Problems solved by technology

This kind of intervertebral fusion device is pre-prepared before the patient's treatment. During the surgical treatment, the intervertebral fusion device is trimmed according to the actual length of the damaged vertebral body, and then implanted into the damaged vertebral body. The existing intervertebral fusion device Most of them cannot adjust the length and because the connection between the vertebral bodies is realized by screwing into the vertebral body, the screw connection will become loose after a long period of movement, which will bring danger to the patient. Painful, severe injury to the spinal cord brings irreparable consequences

ZL200920264876 "An Adjustable Vertebral Body Replacement Fusion Device" provides a length-adjustable intervertebral fusion device, so that the length of the intervertebral fusion device can be adjusted to suit different groups of people. However, regarding the loosening of intervertebral fusion device screws problem, no solution found so far

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