Biological self-locking artificial intervertebral disc system and its application

Abstract

The invention relates to a biological self-locking artificial intervertebral disk system, which comprises an artificial intervertebral disk prosthesis, a prosthesis handle, an intervertebral disk base and a spiral net-shaped fixed bracket which are sequentially connected, wherein the spiral net-shaped fixed bracket comprises an outer screw which is screwed into a vertebral body; and a cavity which is communicated with the outside of the spiral net-shaped fixed bracket is additionally formed inside the spiral net-shaped fixed bracket. The invention also relates to application of the biological self-locking artificial intervertebral disk system, wherein the artificial intervertebral disk system is applied to cervical vertebra, lumbar vertebra or thoracic vertebra. The artificial intervertebral disk system disclosed by the invention has the advantages of reliable fixation of the prosthesis and convenient later maintenance; and the invention belongs to the technical field of surgical prosthesis apparatus.

Description

Technical field [0001] The invention relates to a surgical prosthesis instrument, in particular to a biological self-locking artificial intervertebral disc system and its application. Background technique [0002] At present, the well-known cervical, lumbar, or thoracic spine surgery is mainly divided into two categories: fusion and non-fusion. The following takes the cervical spine as an example. [0003] Non-fusion of the cervical spine mainly includes artificial cervical vertebral disc and artificial cervical nucleus pulposus. At present, the two have clinical products, but they have complications such as displacement, shedding, sinking, ossification and fusion, and are not widely used in clinical practice. [0004] Fusion surgery is mainly a cervical spine plate screw system, which is a static fixation composed of cervical spine plate and screws. The steel plate is placed between the upper and lower vertebral bodies, and fusion materials such as bone and intervertebral fusion ca...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the existing complications such as displacement, detachment, subsidence, ossification and fusion of the artificial intervertebral disc and artificial nucleus pulposus, the static fixation of the plate and screw system sacrifices the motor function of the spine, and it is necessary to completely remove the nucleus pulposus and cartilage endplate of the intervertebral disc. Due to the need for bone graft fusion between vertebral bodies, large surgical trauma, long operation time, and accelerated degeneration of adjacent segments in the later stage, it is necessary to invent an artificial intervertebral disc system, and use this prosthetic structure to innovatively replace the diseased intervertebral disc

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