Dynamic stabilization system for vertebral column

Abstract

The invention provides a moving stabilization system for an elastic vertebral arch pedicle nail of the spinal column. The elastic vertebral arch pedicle nails are connected with each other by special bent wire cables, the wire cables are arranged in grooves on the tails of the vertebral arch pedicle nails fixed in the upper and lower vertebral bodies of the pathological vertebra gap and tightly locked by locking nuts so as to form the movable stabilizing device. When the vertebral column of a human body is bent towards the front, the back, the left side and the right side and slightly rotates, the wire cables can be moved in any direction. The moving artificial vertebral unit keeps the moving function of the intervertebral disk and the intervertebral joints, and facilitates the restoration and regeneration of the intervertebral disk and the prevention of accelerated degeneration of adjacent segments due to intervertebral fusion; moreover, the wire cables have the functions of reducing the load of the intervertebral disk and the intervertebral joints, retarding the degenerative change of the intervertebral disk and the intervertebral small joints, and imitating the moving unit of the human vertebral column to the maximum extent.

Description

Technical field: [0001] The invention relates to a spinal dynamic stabilization system device for recovering and maintaining the human spinal motor unit, especially a spinal vertebral disc that can restore and retain the activity function of the intervertebral disc, reduce the load on the intervertebral disc and facet joints, and maintain the normal height of the intervertebral space. Pedicle screw elastic stabilization system. Background technique: [0002] At present, the known lumbar and cervical pedicle screw systems are statically fixed by pedicle screws, connecting rods, locking nuts, and connecting cross bars. Pedicle screws are implanted into the pedicles of the upper and lower segments of the lesion, connected with connecting rods, and then locked with locking nuts to form a static fixation system. If necessary, a connecting cross bar is added to strengthen the fixation. However, this method must also completely remove the intervertebral disc nucleus pulposus and c...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing pedicle screw system that requires thorough removal of the intervertebral disc nucleus pulposus and cartilage endplate, sacrifice of spinal motor function, bone grafting between vertebral bodies, large surgical trauma, and long operating time, the present invention provides An elastic pedicle screw dynamic stabilization system, which can not only stabilize the spine, restore and maintain the height of the intervertebral space, but also preserve the movement function of the intervertebral space, reduce the load on the intervertebral disc and facet joints, preserve the intervertebral disc, and reduce the need for surgery. Trauma and pain relief for patients, reducing the occurrence of complications

Images