Interspinal universal dynamic stabilizer

Abstract

The invention relates to an interspinal universal dynamic stabilizer, and belongs to the technical field of human in-vivo imbedding objects of medical equipment. The interspinal universal dynamic stabilizer is formed by bending a double-layer elastic metal plate, wherein a U-shaped deformation structure is manufactured on the middle part of an outer-layer metal plate, and an inner-layer metal plate is bent to form a quasi-U shape; a mousing-hook is manufactured at the quasi-U-shaped bottom; and a plurality of pairs of locking holes capable of installing a fastening device are formed in the inner-layer metal plate. According to the interspinal universal dynamic stabilizer, interspinal elastic expansion and left and right lateroflexion of spinal columns are realized by the U-shaped deformation structure, and actions of stretching, bending, rotating and the like on sagittal positions of the spinal columns are realized under the combined action of the elasticity of the outer-layer metal plate, the U-shaped deformation structure and arc shapes of two ends of the U-shaped deformation structure, so that dynamic stability of motion in each direction in operation sections is achieved, and the problem that the spinal columns cannot move in each direction or the dynamic stability of the motion in each direction cannot be provided, and the problem of impact between materials and processusspinosus and between materials and the like in the conventional dynamic interspinal internal fixtures are solved. In addition, by the interspinal universal dynamic stabilizer, the operation time is short, intraoperative injury is small, and postoperative rehabilitation is accelerated.

Description

technical field [0001] The invention relates to an interspinous universal dynamic stabilizer, which belongs to the technical field of implants in the human body of medical instruments. Background technique [0002] As people grow older, the lumbar spine will show different degrees of natural degeneration. Degenerative lumbar spine disorders often seriously affect the daily life of patients, and some even lose their ability to take care of themselves. Lumbar spine disorders are common diseases in orthopedics. For a long time, lumbar fusion and internal fixation has been generally recognized as the main method for the treatment of severe degenerative lumbar diseases, but patients will have many inevitable defects after fusion and fixation, such as loss of motion function of the surgical segment, intervertebral discs of adjacent segments Increased stress, increased degeneration, secondary spinal stenosis, facet joint degeneration and slippage, and the irreversibility of fusion ...

AI Technical Summary

Problems solved by technology

Some of the various dynamic interspinous internal fixators currently used fail to retain and elastically limit the activities of the spine in all directions; Spinous processes, impact between materials, or materials are easy to fall off and wear; some have complex structures, complicated installation operations, long operation time, large damage, or sacrifice the supraspinous ligament; Ropes and straps are fixed and easy to wear, loose, and not durable, and it is difficult to guarantee low complications and good long-term effects

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