Rotation and anti-regression anterior cervical internal fixation device

An anterior approach and fixation device technology for cervical vertebra, which is applied in the field of medical devices, can solve the problems such as difficult adjustment of the screw advance angle, unadjustable bone screw screw advance angle, poor locking mechanism, etc., so as to reduce damage to the spinal cord and weight. Light, simple structure

Inactive Publication Date: 2011-12-28
尚鹏
View PDF9 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of such systems are: the plate is too rigid, absorbs too much structural stress, inhibits the fusion of bone grafts and even causes structural failure
[0017] 1. The screw-in angle of the bone screw is not easy to adjust
[0018] 2. The effect of the locking mechanism is not good, and the bone screw is easy to retreat and fall off after o

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rotation and anti-regression anterior cervical internal fixation device
  • Rotation and anti-regression anterior cervical internal fixation device
  • Rotation and anti-regression anterior cervical internal fixation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Please refer to Figure 1 to Figure 3 as shown, figure 1It is a side view of the anti-regression type cervical anterior internal fixation device of the present invention; figure 2 It is a cross-sectional view of the anti-regression type internal fixation device for the cervical spine of the present invention; image 3 It is a structural schematic diagram of the anti-regression cover plate of the anti-regression anterior cervical internal fixation device of the present invention.

[0042] In this embodiment, the anti-rotation anterior cervical internal fixation device includes an anterior fixation plate 1 made of pure titanium or a titanium alloy material, and four anterior fixation plates for connecting The anterior fixation plate 1 and the bone screws 4 of the human body cone, the bone screws 4 all adopt single cortical screws, and the four bone screws 4 are installed on the four corners of the anterior fixation plate 1 respectively, and the anterior fixation plate ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an anterior cervical internal fixation device of rotation and non-regression type, which comprises an anterior fixation plate and several bone screws connecting the anterior fixation plate and a human body cone, and corresponding bone screws are set on the anterior fixation plate number of bone screw mounting holes, the bone screw mounting holes are of hemispherical structure, the head of the corresponding bone screw is of hemispherical structure, and the anterior fixation plate is equipped with a detachable The anti-regression cover plate is closely attached to the head of the bone screw. The above-mentioned rotary anti-regression type cervical vertebra anterior internal fixation device is simple in structure, easy to operate, and has a certain rigidity and flexibility; it is convenient for operation The middle bone screw is screwed in, and the direction of the bone screw screw is adjusted at the same time; the bone screw is locked after surgery, it is not easy to retreat, and it is closer to the characteristics of the cervical curvature of the Chinese race.

Description

technical field [0001] The invention relates to a medical device, in particular to a rotation and regression-type anterior cervical internal fixation device. Background technique [0002] Anterior cervical fixation plate (ACP) internal fixation is a better method for stabilizing the cervical spine in anterior cervical surgery. The front edge of the vertebral body is internally fixed with a fixed plate and screws to stabilize the cervical spine, fix the bone graft block, promote the fusion of the bone graft area, and restore the normal intervertebral height, physiological curvature and spinal canal capacity. The anterior approach of the cervical spine The highest level of fixed plate fixation is C2, and the lowest is T2. Patients using the ACP system generally have improved fusion rates when performing single-layer fusions, reduced graft dislodgement accidents, early patient mobility, reduced need for external cervical collars, and improved ability to correct and prevent cer...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A61B17/70A61B17/80
Inventor 尚鹏
Owner 尚鹏
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap