Non-fusion fixing device for cervical vertebrae

Abstract

The invention discloses a medical device, in particular to a non-fusion fixation device for cervical vertebrae. The fixing device includes an upper body part, a lower body part and a middle part of an integral structure, wherein the upper body part and the lower body part are arranged symmetrically, the middle part is located between the upper body part and the lower body part and connects the upper body part and the lower part, and the cross section of the middle part is U-shaped; the outer surface of the upper part of the main body and the lower part of the main body are provided with several rows of barb teeth; the tail ends of the upper part of the main body and the lower part of the main body are arc-shaped; the direction of the barb teeth is inclined to the tail ends of the upper part of the main body and the lower part of the main body. The invention has the advantages of small operation trauma, strong postoperative vertebral body activity, good stability, and not easy to shift and protrude.

Description

technical field [0001] The invention relates to a medical device, in particular to a non-fusion fixation device for the cervical spine. Background technique [0002] At present, although anterior cervical decompression and fusion (ACDF) is still the main choice for the treatment of cervical degenerative diseases, many studies have reported that biomechanical changes in adjacent segments, increased stress and the natural course of disc degeneration may lead to Adjacent segment degeneration (ASD), most scholars believe that spinal fusion accelerated the occurrence of ASD. Non-fusion surgery has certain advantages in the prevention of ASD. The design concept of cervical artificial disc replacement (CADR) is to replace the original intervertebral disc and perform its function, so as to preserve the motion segment and reduce the secondary degeneration of adjacent segments. , this operation has been widely used at home and abroad, and a large number of clinical observations have ...

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Problems solved by technology

[0002] At present, although anterior cervical decompression and fusion (ACDF) is still the main choice for the treatment of cervical degenerative diseases, many studies have reported that biomechanical changes in adjacent segments, increased stress and the natural course of disc degeneration may lead to Adjacent segmental degeneration (ASD), most scholars believe that spinal fusion accelerated the occurrence of ASD

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