Minimally invasive dual-locking implantation system for cervical vertebra

A double-locking, cervical spine technology, which is applied in the field of repair and fixation of the sixth and seventh cervical vertebrae, can solve the problems of inconvenient operation of locking nails, inconsistency of cervical vertebral body shape, and affecting the normal recovery of the affected area, so as to avoid Screw hole deformation, fast recovery time, and shortened operation time

Active Publication Date: 2009-08-05
史亚军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the prior art that the shape of the anterior cervical plate and the cervical vertebral body do not match, the operation of the locking nail is inconvenient, the anti-loosening structure is unreasonable, and the normal

Method used

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  • Minimally invasive dual-locking implantation system for cervical vertebra
  • Minimally invasive dual-locking implantation system for cervical vertebra
  • Minimally invasive dual-locking implantation system for cervical vertebra

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] figure 1 , 2 In one embodiment shown, when more than two cervical vertebral bodies need to be fixed, especially when the sixth and seventh cervical vertebral bodies 1 need to be fixed, the arc radius of the length direction of the cervical vertebra anterior plate 2 is selected to be 40mm, so that The inner arc of the anterior cervical plate coincides with the arcs of the sixth and seventh vertebral bodies in a balanced manner. Locking holes 21 with internal threads are respectively provided on the four wings of the anterior cervical plate. The anterior cervical plate 2 and the cervical vertebra to be repaired After the corresponding anastomosis of the vertebral bodies, pass the locking nail 3 through the locking hole 21 on the anterior cervical plate to lock the anterior cervical plate on two adjacent cervical vertebral bodies. The external thr...

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Abstract

The invention relates to a cervical spine minimally invasive doubly-locked transplant system, which comprises a cervical spine forward board and a locked nail, wherein the length direction arc semidiameter of the cervical spine forward board is between 30 and 50 mm; a screw cap of the locked nail is provided with external threads, a locked hole of the cervical spine forward board is provided with internal threads, the cervical spine forward board is fixed on an adjacent cervical spine body which needs to be repaired by screwing a cross slot on the screw cap of the locked nail, the external threads of the screw cap of the locked nail and the locked hole with threads of the cervical spine forward board realize primary tight lock through taper fitting; the top of the locked nail is provided with an internal thread hole for locking taper fitting bolt, wherein the top end of the taper fitting bolt is provided with a hexagon locking groove, and the secondary tight lock of the locked nail and the locked hole of the cervical spine forward board is realized through tight lock and bulge of the taper fitting bolt in the internal thread hole of the screw cap. The transplant system realizes even and anastomotic contact of the cervical spine forward board and the cervical spine body, the doubly-locked tight nail is locked and not loose, the cervical spine is fixedly repaired without deformation, the time for recovery is fast and no sequela is remained after operation.

Description

technical field [0001] The invention relates to a medical orthopedic implant, specifically a double-locking implant system for cervical vertebral fractures, injuries and pathological changes, especially for fixation and repair of the sixth and seventh cervical vertebral bodies. Background technique [0002] The human cervical spine includes seven vertebral bodies. In the event of cervical spondylosis or fracture, two or more vertebral bodies are usually fixed by the anterior cervical plate. Due to the particularity of the cervical spine, the requirements for its implantation surgery are relatively high and the operation is difficult. . The anterior cervical plate is a minimally invasive fixation implant material for human cervical vertebral bone injuries, injuries or other lesions. The shape, fixation method, and surface quality of the anterior cervical plate and human bones directly affect the bone health of patients. Growth and recovery. [0003] At present, the anterior...

Claims

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Application Information

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IPC IPC(8): A61B17/70A61B17/86A61B17/80
Inventor 史亚军顾玉祥
Owner 史亚军
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