Interbody fusion cage

Abstract

The invention provides an interbody fusion cage which is provided with a filler hole, the filler hole penetrates through the two ends of the interbody fusion cage, and the side face of the interbody fusion cage is provided with a plurality of pore areas at intervals. According to the interbody fusion cage, the pore structure areas are reasonably arranged, and the intervals are formed between the adjacent pore structure areas, so that the interbody fusion cage can be ensured to have enough strength under the condition that the interbody fusion cage has the preset elastic modulus, and the interbody fusion cage is prevented from being broken or even broken when being subjected to external force. The technical problem that in the prior art, an interbody fusion cage is insufficient in strength due to a pore structure is solved.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an intervertebral fusion device. Background technique [0002] At present, the intervertebral fusion device is an implantable medical device applied between the upper and lower vertebrae of the human body. It is one of the main implants to realize the fusion of adjacent vertebral spaces in the spine. Its safety and effectiveness directly affect the adjacent vertebral bodies. The effect of bony fusion. Due to the different individual conditions of each person (such as bone density, the position and structure of adjacent vertebrae during implantation, etc.), medical devices with different elastic moduli are required. Only when the elastic modulus of the intervertebral fusion cage is close to the human bone elasticity When the modulus is high, problems such as stress shielding can be avoided. Therefore, in order to make the elastic modulus of the intervertebral fusion cage consis...

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, due to the irrationality of the arrangement of the hole area, the strength of the intervertebral cage is often insufficient

In some cases, such as after the intervertebral fusion is implanted in the human body, the vertebrae will exert external force on the intervertebral fusion during the movement of the human body, which may cause the insufficient strength of the intervertebral fusion to break or even completely shatter Cracked, fractured or shattered fusion cage fragments can be very dangerous if left in the body

[0004] Therefore, researchers are looking for an intervertebral fusion device that can ensure the strength of the intervertebral fusion device at the same time and prevent the intervertebral fusion device from being generated under the action of external force. Fracture, even fragmentation, helps to solve the technical problem of the intervertebral cage in the prior art due to the lack of strength of the intervertebral cage due to the hole area

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