Dynamic stabilization implanting unit for spine

A technology of dynamic stability and spine, applied in the field of medical devices, can solve the problems of high possibility of reoperation, hysteresis of elastic zone, poor self-sealing of implants, etc.

Active Publication Date: 2014-01-29
SUZHOU MINIMALLY INVASIVE SPINAL TRAUMA MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned products are not ideal in terms of therapeutic effect. The main disadvantages are that the elastic zone hysteresis, internal pressure, tension, relaxation and creep properties are not ideal, fatigue resistance is poor, and some implants have poor self-sealing
In decompression surgery, the environment for intervertebral disc repair cannot be well created; in fusion surgery, the adjacent segment cannot be too much in motion; resulting in more possibilities of reoperation

Method used

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  • Dynamic stabilization implanting unit for spine
  • Dynamic stabilization implanting unit for spine
  • Dynamic stabilization implanting unit for spine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Invention patent application No.201110041369.3 involves 10 dynamic rod forms in the spine dynamic connection rod, figure 2 is one of them. Fill the silicone rubber material methyl silicone rubber in the elastic slots 2 of all dynamic rods.

Embodiment 2

[0051] In the invention patent application No.200510090810, the elastic gap (154) in the bioflexible spinal fixation device with shape memory containing gold is filled with inert silicone rubber, phenyl silicone rubber, and the silicone rubber also wraps the outer surface of the entire elastic zone (150) into a closed form, see image 3 .

Embodiment 3

[0053] In the invention patent application No.03827111.7, the spring gap (11) in the device for elastically stabilizing the vertebral body is filled with inert silicone rubber, fluorosilicone rubber, see Figure 4 .

[0054] Compared with the prior art, the structure of the elastic region of the present invention is an organic combination of rigid materials and flexible materials, which solves the problem of deformation and failure of the elastic region per unit time and increases the fatigue strength of the elastic region. It can speed up the repair function of the intervertebral disc and the enlargement of the intervertebral foramen while the patient can be stabilized immediately after the operation. In addition, the elastic region of the present invention is a closed body. After being implanted into the human body, bone fragments or blood clots around the spine will not be embedded in the pores with changes in body position, affecting the dynamic effect.

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Abstract

The invention relates to the field of medical apparatuses, in particular to a dynamic stabilization implanting unit for the spine. The dynamic stabilization implanting unit for the spine is characterized in that inert silicone rubber material is added into the elastic region of the implanting unit. Rigid material and flexible material are organically combined to form the structure of the elastic region, and thus the problem caused by deformation and failure of the elastic region in unit time is solved, and the fatigue strength of the elastic region is increased.

Description

technical field [0001] The invention relates to the field of medical instruments. In particular, the present invention relates to a spinal dynamic stabilization implant unit. Background technique [0002] Spine surgeons and researchers have found that in the treatment of intervertebral disc herniation and intervertebral foramina stenosis, the existing pedicle screw system restricts the segmental movement of the fixation zone after implantation, although it increases the stability of the fixation zone segment However, it changes the biomechanical environment of the adjacent segment, which leads to the rate of degeneration of the adjacent segment. In view of this, more than a dozen kinds of dynamic stable connecting rods have been invented clinically to change the previous rigid connecting rods. The main function of these dynamic stabilization rods is to provide additional dynamic motion effects on the basis of ensuring spinal stability, and to prevent the acceleration of ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
CPCA61B17/7028A61B17/7031
Inventor 高耀平田芳林忠
Owner SUZHOU MINIMALLY INVASIVE SPINAL TRAUMA MEDICAL TECH CO LTD
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