Internal fixation system for anterior cervical steel plate

Abstract

The invention discloses a fixation system for an anterior cervical steel plate, which is used for treating the cervical vertebra in a front fixing mode. The internal fixation system comprises an anterior cervical steel plate and adjusting screws, and is characterized in that the anterior cervical steel plate is provided with a plurality of rows of screw hole groups which are arranged in parallel, each row of screw hole groups is composed of two adjacent adjusting screw holes, and the adjusting screws are installed in the adjusting screw holes. The internal fixation system is structurally characterized by further comprising locking screws, wherein a locking screw hole is formed in the adjacent position of each adjusting screw hole, internal threads matched with the locking screws are arranged in the locking screw holes, grooves matched with screw heads of the locking screws are further formed in the upper portions of the locking screw holes, the locking screws are installed in the locking screw holes, and the screw head of each locking screw is positioned in the groove and is used for pressing the screw head of the adjusting screw. The system has the advantages of being simple in structure, convenient to operate, rapid to fix, safe and reliable.

Description

technical field [0001] The invention relates to an anterior cervical plate internal fixation system, which is used for anterior fixation treatment of the cervical spine and belongs to the technical field of medical devices. Background technique [0002] Due to the lack of reliable stabilizing measures for the bone graft interface in the anterior cervical spine fusion, it is prone to bone graft loss, bone graft nonunion or delayed union or pseudarthrosis formation, and the incidence of pseudarthrosis is high in anterior cervical decompression and bone graft fusion , and multi-segment bone graft fusion has a higher incidence of pseudarthrosis, which has become a difficult problem for clinicians. [0003] The emergence of cervical anterior plate not only provides a good means of fixation for clinical practice, provides a stable support for anterior cervical fusion, shortens the fusion time of bone grafts, improves the fusion rate, but also prevents delayed cervical kyphosis De...

AI Technical Summary

Problems solved by technology

The anterior cervical plate is fixed with screws, but after the operation is completed, the screws are prone to loosen and withdraw from the anterior cervical plate, resulting in surgical failure or even life-threatening, which seriously affects the patient. The existing screw locking method has complicated operation steps , unreliable locking, and potential safety hazards

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