Spine board dynamic stabilizing system

Abstract

The invention relates to a spine board dynamic stabilizing system, and belongs to the technical field of human body implanting objects of medical apparatuses. The spine board dynamic stabilizing system consists of an elastic structure and fixing plates, wherein the fixing plates are arranged at the two sides; the elastic structure is formed by connecting one or more than one U shape, a torsion fixing plate and an opening are respectively formed in two side plates of each U shape, and an anti-disengaging hook is arranged at the bottom part of the elastic structure; a semicircular screw hole and a fixing screw hole are formed in each fixing plate, a circular anti-disengaging screw hole is formed in each of the semicircular screw hole and the fixing screw hole, and an anti-disengaging hook is manufactured at the inside surface of each fixing plate. The spine board dynamic stabilizing system has the advantages that by utilizing the elastic structure, the dynamic stabilizing of extending, flexion and rotating of the spine operation section on the sagittal view is realized; the structure is simple, the stress is dispersed, the implanting is convenient, and the spine board dynamic stabilizing system can be applied to the diseases with overlarge lumbosacral angle, overshort spinous process or oversmall spinous distances. The spine board dynamic stabilizing system solves the problems of the existing dynamic spinous process inner fixator that the ligaments on the spinous parts need to be cut away or apart in the operation process, the cutting amount of spinous process bones is more, the diseases with overlarge lumbosacral angle, overshort spinous process or oversmall spinous distances cannot be treated, the installation and operation are complicated, and the injury in operator is large.

Description

technical field [0001] The invention relates to a dynamic stabilization system between spine plates, which belongs to the technical field of implants in the human body of medical instruments. Background technique [0002] At present, spinal fusion technology has achieved good results in the treatment of neck and back pain and instability of the cervical and lumbar spine, with a fusion rate of over 90%. However, studies have shown that its clinical efficacy has not reached the expected value; moreover, rigid internal fixation and spinal fusion may cause complications such as accelerated degeneration of adjacent segments, internal fixation failure, and postoperative pseudarthrosis formation. In view of this, spinal dynamic fixation is becoming a popular technology in the treatment of degenerative cervical and lumbar diseases in recent years, including artificial total intervertebral disc replacement, artificial nucleus pulposus replacement, transpedicular dynamic stabilization...

AI Technical Summary

Problems solved by technology

However, there are still many defects in the existing inter-spinous process or inter-spinous plate dynamic stabilization systems. Some prostheses collide with the spinous process and cause wear and tear reactions, and some connections are complicated (such as the inter-spinous plate universal dynamic stabilizer), and some The size of the fixator is too large, the intraoperative trauma is large, the space occupied in the postoperative body is large, and the installation is difficult (such as the interspinous universal dynamic stabilizer), or some long-term fixation with straps is easy to loosen, and some installations are more sensitive to bone resection. Many patients may need to resect the supraspinous ligament or dissect the supraspinous ligament (such as Coflex, interspinous universal stabilizer), and it is difficult to guarantee low complications and good long-term results

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