Non-fusion implantation device between dynamic spinous processes

Abstract

The invention relates to a non-fusion implantation device between dynamic spinous processes, belonging to the technical field of spinal column surgical medical instruments and aiming to provide an implant combined type or signal type device for treating or remitting diseases related to a spinal column. The implantation device is embedded between two spinous processes and comprises a center body, two limited wings and a locking device, wherein the center body is a flexible body, is integrally in a U shape and comprises three parts, i.e. an upper part, a middle part and a lower part, and the upper part and the lower part of the center body are provided with areas which are implanted between the spinous processes and contact with the spinous processes; the limited wings extend from the center body to the spinous processes; and the locking device is used for fixing the limited wings and the spinous processes. The non-fusion implantation device provides the dynamic fixing of anteflexion, retroflexion, left rotation and right rotation without generating adjacent segment degeneration acceleration or novel syndromes and can be widely suitable for treating and remitting the diseases related to the spinal column or osteoporosis diseases.

Description

technical field [0001] The invention relates to the technical field of spinal surgery medical instruments, in particular to a dynamic non-fusion implantation device between spinous processes. Background technique [0002] Traditional spinal diseases, except for traumatic fractures, are mostly caused by atrophy of intervertebral discs, resulting in narrowing of the intervertebral space and compression of the spinal nerve foramen, resulting in numbness or pain. At present, the most commonly used treatment method is to apply pedicle screw technology or fusion cage technology to perform fusion surgery on the lesion. The principles of these technologies are all spinal fusion techniques, that is, with the diseased intervertebral disc as the center, fusion is performed between the previous vertebral body and the next vertebral body of the diseased body, and finally the two vertebral bodies become a whole. The advantages of this technique are: immediate stability, immediate disappe...

AI Technical Summary

Problems solved by technology

The Chinese patent with the notification number CN1309549 discloses a device for relieving intervertebral disc-related diseases, which is embedded between two spinous processes, but the device cannot restrict the front bending, and the restriction on the rear bending is too large, and it is not convenient to rotate left and right , did not achieve the purpose of dynamic fixation, and its spacer is not elastic, which will cause complications such as spinous process fracture, so it is not suitable for patients with osteoporosis

The Chinese patent with the notification number CN200977198Y discloses a dynamic stabilizer for elastic loads, which is placed between the spinous processes, but the stabilizer cannot restrict forward bending, and only relying on rope binding cannot play a role in stabilizing and fixing

The above designs do not really play a role in dynamic fixation

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