An internal fixation device for the upper cervical spine implanted anteriorly
A fixation device and cervical spine technology, which is applied in the field of upper cervical spine internal fixation devices, can solve the problems of affecting the treatment effect, causing large tension caused by bone quality, and unable to ensure screw fastening, so as to improve the treatment effect, reduce screw tension, and install and cooperate simple effect
Active Publication Date: 2021-10-29
李涛
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Problems solved by technology
[0003] The Chinese patent whose publication number is CN200410031131.2 proposes a kind of upper cervical spine internal fixation device suitable for anterior implantation. The angle of the plane does not necessarily coincide with the plane of the fixation plate, which not only cannot ensure the fastening of the screw, but also causes a large tension on the bone, affecting the treatment effect
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[0021] see Figure 1-4 , the present invention provides a technical solution: an internal fixation device for the upper cervical spine implanted anteriorly, comprising a supporting part 1 and a connecting part 2, the two sides of the upper and lower ends of the supporting part 1 are provided with connecting parts 2, and the supporting part 1 It is integrally formed with the connecting part 2, and the outer end surface of the connecting part 2 is provided with an arc-shaped connecting groove 21, and the two sides of the arc-shaped connecting groove 21 are provided with card slots, and the outer side of the connecting part 2 is snapped and connected with a screw seat clamping plate 4, The inner wall of the screw seat clamp 4 is provided with an arc-shaped wrapping groove 43 matching with the arc-shaped connecting groove 21, and a screw seat 5 is slidably connected between the screw seat clamp 4 and the connecting portion 2, and the screw seat 5 has an arc-shaped protrusion. The ...
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The invention belongs to the technical field of cervical spine treatment devices, and in particular relates to an internal fixation device for the upper cervical spine implanted anteriorly, comprising a support part and a connecting part, and both sides of the upper and lower ends of the support part are provided with the connecting parts. The supporting part and the connecting part are integrally formed, an arc-shaped connecting groove is opened on the outer end surface of the connecting part, and two sides of the arc-shaped connecting groove are provided with card slots, and the outer side of the connecting part is snap-connected with Screw seat card plate: There is a detachable screw seat card plate on the connecting part, and there are arc-shaped connecting grooves on the connecting part and the screw seat card plate, which can slide with the arc-shaped protrusion on the screw seat Connection, so that the installation angle of the screw can be fine-tuned according to the needs during installation, so as to meet the reliability of fixation, reduce the tension of the screw, and the damage to the bone, and the installation is simple, convenient for the operation, and improves the treatment effect. High practicality.
Description
technical field [0001] The invention belongs to the technical field of cervical spine treatment devices, and in particular relates to an internal fixation device for upper cervical spine implanted anteriorly. Background technique [0002] Cervical spine refers to the cervical spine, which is located below the head and above the thoracic spine. The cervical spine consists of seven cervical vertebrae. Except for the first cervical vertebra and the second cervical vertebra, there is an intervertebral disc between the other cervical vertebrae, plus the intervertebral disc between the seventh cervical vertebra and the first thoracic vertebra. There are 6 intervertebral discs in the cervical vertebrae. 1. Except for the special structure of the second cervical vertebrae, the rest of the cervical vertebrae are roughly similar to the thoracic and lumbar vertebrae. The vertebral arch is in the front and the vertebral arch is in the back. The two circle together to form the vertebral...
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IPC IPC(8): A61B17/70
CPCA61B17/70A61B17/7062
Inventor 李涛
Owner 李涛