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Method for preparing cervical intervertebral disc of human body by adopting 3D printing technology

A 3D printing and cervical intervertebral disc technology, which is applied in the field of preparation of human cervical intervertebral discs, can solve the problems of inability to personalize patients and achieve the effect of accelerating the healing process and promoting tissue regeneration and reconstruction

Inactive Publication Date: 2021-01-01
HANGZHOU DIANZI UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing artificial intervertebral discs based on titanium alloy 3D printing technology in view of the shortcomings that the existing intervertebral discs cannot be customized for patients

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  • Method for preparing cervical intervertebral disc of human body by adopting 3D printing technology
  • Method for preparing cervical intervertebral disc of human body by adopting 3D printing technology

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Embodiment Construction

[0019] The following is attached figure 1 with figure 2 The present invention is further described.

[0020] The present invention is a method for preparing a human cervical intervertebral disc using 3D printing technology. The printing of a human cervical intervertebral disc is used as an example for illustration. The overall process is shown in the figure and mainly includes the following steps:

[0021] Step 1. Cervical disc model making (eg figure 2 shown): Through medical imaging technology (CT, MRI), two-dimensional tomographic images of the human cervical spine can be easily obtained, and then the obtained CT and MRI medical image data are input into the Mimics software, through threshold segmentation, area increase, multiple The 3D entity in STL format is manipulated for righteous line calculation, contour repair, etc., and the obtained STL file is imported into Geomagic software for repair processing and model reconstruction. Then the porous unit structure was es...

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Abstract

The invention discloses a method for preparing a cervical intervertebral disc of a human body by adopting a 3D printing technology. The method comprises the following steps that firstly, a two-dimensional tomography image of a related part of the human body is acquired through a medical imaging technology, tomography data are converted into a universal data input format for a rapid prototyping system, finite element analysis is carried out, and data meeting a three-dimensional printing requirement are generated by continuously improving a model; pPrinting results of different process parameters are simulated through software, and a good process parameter combination is obtained; a raw material to be subjected to 3D printing is prepared, and titanium alloy Ti-6Al-4V powder is adopted; then,a base material is printed by using a selective laser sintering type 3D printer; and finally, a workpiece is subjected to mechanical treatment, including linear cutting, workpiece support removal andsurface treatment, after being printed. A device prepared by using the method is high in size precision and has relatively good surface roughness.

Description

technical field [0001] The invention relates to a method for preparing a human cervical intervertebral disc, in particular to a method for preparing a human cervical intervertebral disc using metal 3D printing technology. Background technique [0002] With the acceleration of the aging process in my country and the sedentary white-collar population, cervical spondylosis has gradually become a common disease in clinical spine surgery. At present, about 10% of people in our country suffer from cervical spondylosis, and the age of onset is tending to be younger, which has become a social problem that cannot be ignored. Intervertebral disc degeneration is the main pathogenic factor of cervical spondylosis. With age, the intervertebral disc begins to gradually degenerate and age, causing the outer annulus fibrosus to rupture, and the protrusion of the nucleus pulposus causes nerve compression and neurological symptoms. This is what is commonly called Got cervical spondylosis. C...

Claims

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Application Information

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IPC IPC(8): A61F2/30A61F2/44
CPCA61F2/442A61F2/30771A61F2/30942A61F2002/30329A61F2002/30784A61F2002/30985A61F2002/30948A61F2002/3097
Inventor 龚友平何晶洋戚金来陈国金毕志凯王飞刘海强陈慧鹏
Owner HANGZHOU DIANZI UNIV
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