A multifunctional intervertebral fusion cage for spinal surgery and its application method

By using a nickel-titanium alloy annular variable to absorb spinal stress and drive the spraying component to spray medication, the problems of vertebral endplate collapse and secondary damage caused by the fusion device were solved, achieving the effects of shock absorption and bone fusion promotion.

CN122398508APending Publication Date: 2026-07-17YANCHENG NO 1 PEOPLES HOSPITAL
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
YANCHENG NO 1 PEOPLES HOSPITAL
Filing Date
2026-05-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The fusion devices used in current spinal surgery are prone to collapse of the vertebral endplates and subsidence of the fusion device during dynamic human activities, which increases patient pain and may cause secondary damage to the vertebral body, affecting the fusion effect.

Method used

A nickel-titanium alloy ring is used to absorb spinal stress during activity. Combined with a spraying component, a drug that promotes bone growth is sprayed onto the bone graft area. The deformation of the nickel-titanium alloy ring drives the spraying component to spray the drug onto the bone graft area, promoting bone cell proliferation and bone fusion.

Benefits of technology

It reduces local pressure at the contact point between the fusion cage and the vertebral body, lowers the risk of endplate collapse and fusion cage subsidence, alleviates patient pain, promotes osteoblast proliferation, and improves bone fusion results and surgical prognosis.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122398508A_ABST
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Abstract

The present application relates to the field of spinal surgery, in particular to a multifunctional intervertebral fusion cage for spinal surgery and its application method, wherein the intervertebral fusion cage comprises a fusion cage body, a plurality of bone grafting areas are opened in the center of the fusion cage body, a plurality of guide teeth are arranged on the upper surface and the lower surface of the fusion cage body, a plurality of fixing holes are opened on the two side walls of the fusion cage body along the length direction of the fusion cage body, a nickel-titanium alloy ring is arranged in each fixing hole, the top and the bottom of the nickel-titanium alloy ring are fixedly connected with the top wall and the bottom wall in the corresponding fixing hole respectively, a medicine storage box for storing the medicine for promoting bone growth is arranged on both sides of the fixing hole along the length direction of the fusion cage body, and a medicine spraying assembly for controlling the medicine spraying by the deformation of the nickel-titanium alloy ring is arranged in the medicine storage box. The present application utilizes the deformation of the nickel-titanium alloy ring to absorb the stress of the spine activity to realize the shock absorption and buffering, and at the same time drives the medicine spraying assembly to spray the medicine for promoting bone growth in the medicine storage box to the bone grafting area, so as to promote the proliferation of bone cells and the bone fusion process.
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