an intervertebral disc prosthesis

Abstract

The invention provides an intervertebral disc prosthesis, which solves the problem that in the prior art, after the intervertebral disc prosthesis is implanted, the mobility between a vertebral body is unstable, and intervertebral disc replacement cannot replace a complete vertebral section including an intervertebral disc. The intervertebral disc prosthesis comprises an upper end plate, stabilizers, vertebral discs and a lower end plate, wherein the upper end plate is used for fixedly contacting the prosthesis with an upward vertebral body of a human body; each stabilizer is used for completing fixation of the prosthesis and enabling the prosthesis to be have mobility, and is connected with the upper end plate; each vertebral disc is used for prosthesis support, and is arranged in each stabilizer; the lower end plate is used for fixedly contacting the prosthesis with a downward vertebral body of the human body, and is connected with each stabilizer. According to the intervertebral disc prosthesis, a universal connecting plate in each stabilizer has a design similar to the mobility of a vertebral column, so that the prosthesis has mobility; the height of each vertebral disc is set, and the vertebral discs are matched with the two stabilizers arranged on the vertebral discs, so that the replacement of the intervertebral disc can simultaneously replace the vertebral section including the intervertebral disc.

Description

technical field [0001] The invention relates to the field of an artificial joint implant or joint prosthesis, in particular to a lumbar and thoracic intervertebral disc prosthesis. Background technique [0002] Spinal disc disease is a high incidence of spinal diseases. Among them, degenerative disc disease, the traditional surgical treatment method is to perform intervertebral fusion. The side effect of this treatment is that the vertebral bodies at both ends of the diseased intervertebral disc are fused into a whole. activity is unstable. [0003] To overcome the defects of the intervertebral disc fusion treatment method, until 2005, a company in the United States launched the "intervertebral disc prosthesis", but the two end plates of the "intervertebral disc prosthesis" were respectively fixed at the ends of two adjacent vertebral bodies, There is a double-sided, symmetrical and concave spacer between the endplates, and the spacer and the endplate are concentric spheric...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes an intervertebral disc prosthesis, which solves the problems in the prior art that after the intervertebral disc prosthesis is implanted, the range of motion between the vertebrae is unstable and the replacement of the intervertebral disc cannot replace a complete vertebral segment including the intervertebral disc.

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