Manufacturing method of atlas and axis titanium alloy prosthesis

A manufacturing method, titanium alloy technology, applied in the direction of prosthesis, additive manufacturing, manufacturing tools, etc., can solve the problems of stress shielding, large difference, etc., and achieve the possible effect of reducing the elastic modulus and reducing the phenomenon of stress shielding

Inactive Publication Date: 2017-05-10
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, due to the large difference between the elastic modulus of titanium alloy and the natural bone elastic modulus of the human body, it is easy to cause stress shielding.

Method used

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  • Manufacturing method of atlas and axis titanium alloy prosthesis
  • Manufacturing method of atlas and axis titanium alloy prosthesis
  • Manufacturing method of atlas and axis titanium alloy prosthesis

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Embodiment Construction

[0035] Attached below Figures 1 to 9 And specific embodiments, the present invention is further specifically described in detail.

[0036] The manufacturing process of the atlas and axis titanium alloy prosthesis of the present invention is to import the CT tomographic data of the spine medical image DICOM format that the patient needs to reconstruct into the MINICS software, and establish the three-dimensional model data of the spine that needs to be repaired, and the data is stored in the Geomagic software. , perform trimming and noise reduction, export the 3D data file in STEP format, import it into SolidWorks software, select the appropriate design surface at the spine model and skull model of the third section, and establish the prototype of the prosthesis between the two design surfaces to ensure that the prosthesis It fits perfectly with the two design surfaces. In order to reduce the elastic modulus of the prosthesis and realize the lightweight design, the interior of...

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Abstract

The invention discloses a manufacturing method of an atlas and axis titanium alloy prosthesis. The method comprises the steps of uploading CT tomography data of DICOM format of the spine medical image into the MINICS software, establishing three dimensional model data of spine to be reconstructed, implementing noise reduction by using the Geomagic software, exporting a 3D data file of step format, importing the file into the SolidWorks software, selecting the right design surfaces in the third section of the spine and the skull, establishing a prosthesis prototype between the two design surfaces, making sure the prosthesis and two design surfaces are completely fit. In order to reduce the modulus of elasticity of the prosthesis, and achieve the light weight design, the inside of the prosthesis is filled with porous grids by using SolidWorks. The porous structure on the prosthesis surface is also designed.

Description

technical field [0001] The invention relates to a process for preparing artificial prosthesis parts, in particular to a method for manufacturing an atlas and axis titanium alloy prosthesis. Background technique [0002] At present, the prosthesis or support body of artificial vertebra prosthesis component reconstruction mainly includes intervertebral fusion device, titanium mesh and artificial bone. These materials have their own advantages and disadvantages during use. Among them, titanium alloy intervertebral fusion cage and titanium mesh have good biocompatibility and sufficient strength, and are currently the most widely used one. However, because the elastic modulus of titanium alloy is quite different from the elastic modulus of human natural bone, it is easy to cause stress shielding. [0003] Laser selective melting technology is a kind of metal additive manufacturing technology. Its fast, accurate, and arbitrarily complex parts can be formed, which has promoted the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
CPCA61F2/44A61F2002/3093A61F2002/30948A61F2002/30985
Inventor 杨永强张自勉王艺锰
Owner SOUTH CHINA UNIV OF TECH
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