Intervertebral fusion cage

Abstract

The invention discloses an intervertebral fusion cage. The problem is solved that broken bones in a bone grafting cavity are shaken down when an existing intervertebral fusion cage is struck into an intervertebral space. The intervertebral fusion cage comprises an intervertebral fusion cage body and a placing gun matched with the intervertebral fusion cage body in use, wherein the intervertebral fusion cage body comprises a front end serving as an advancing end, a rear end serving as a pushing-in end and a bone grafting cavity formed between the front end and the rear end and used for broken bones to be placed. The bone grafting cavity penetrates through the intervertebral fusion cage body in the vertical direction, a baffle placing ring groove is formed in the intervertebral fusion cage body in the cavity mouth direction of the bone grafting cavity, the baffle placing ring groove extends out of the rear end, the rear end of the intervertebral fusion cage body is provided with a pushing hole matched with the advancing end of the placing gun, the advancing end of the placing gun is provided and connected with a baffle used for closing the bone grafting cavity, and the baffle is matched with the baffle placing ring groove. According to the intervertebral fusion cage with the structure, the baffle can effectively seal the broken bone in the bone grafting cavity and prevent the broken bone from being shaken out.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and in particular relates to an intervertebral fusion device. Background technique [0002] The intervertebral fusion device is mainly used for decompression and fixation of intervertebral body bone graft fusion after discectomy. The intervertebral fusion device is filled with decompressed bone and autogenous bone can increase the fusion rate, so autogenous bone is required to contact the decompressed vertebral body. On the body bone surface, a large window should be left in the fusion cage to meet the needs of bone grafting. [0003] At present, the retention window of the intervertebral fusion device is not closed to allow the filled autologous bone to contact the bone surfaces of the upper and lower vertebral bodies to ensure the fusion effect. However, when the intervertebral fusion cage is implanted between the vertebral bodies, it needs to be driven in hard. It is precisely bec...

AI Technical Summary

Problems solved by technology

[0004] The invention discloses an intervertebral fusion device, which solves the problem that when the existing intervertebral fusion device is driven into the vertebral body, the broken bone in the bone graft cavity will shake out of the bone graft cavity. The plate seals the bone graft cavity after bone grafting, and the broken bone is sealed in the bone graft cavity. During the implantation of the intervertebral fusion device, the broken bone will not shake out.

Images