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An Implant Design Method Combining Macroscopic and Microscopic Topology Optimization

A topology optimization and design method technology, applied in the field of biomedicine, can solve the problems of void structure and size design, unpredictable performance requirements, and inability to effectively control the size and shape of porosity, so as to achieve lightweight design, improve Implant performance, the effect of improving biological performance

Active Publication Date: 2021-02-12
SHANDONG UNIV
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Problems solved by technology

These methods can successfully form pores inside the material, but the size and shape of the porosity cannot be effectively controlled, and the performance requirements cannot be predicted, and the effective pore structure and size design cannot be reflected in the manufacturing process.

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  • An Implant Design Method Combining Macroscopic and Microscopic Topology Optimization

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[0038] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0039] It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and / or combinations thereof.

[0040] As described in the background art, the existing technology has the shortcomings that the ...

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Abstract

The invention discloses an implant design method combining macroscopic and microscopic topology optimization, which solves the problem that the porosity and shape of the implant cannot be effectively controlled in the prior art, and has the advantages of ensuring the microporous unit mechanics. Increase the porosity of the microporous unit while increasing the performance, improve the biological performance of the implant, and design the structure that best meets the mechanical requirements while reducing the amount of materials; the technical solution is: including the following steps: the microporous unit Topology optimization of microporous units, acquisition of mechanical parameters of micropore units, image acquisition and reverse processing, macroscopic mechanical analysis, topology optimization of macroscopic structures, and generation of implants.

Description

technical field [0001] The invention relates to the field of biomedicine, in particular to an implant design method combining macro and micro topology optimization. Background technique [0002] When repairing large bone defects in the human body, due to the good biocompatibility, excellent mechanical properties, corrosion resistance and wear resistance of titanium alloys, stainless steels, CoCr alloys and other metals, they have long been used as implants or restorations. However, due to the mismatch between the rigidity of the solid metal implant and the rigidity of the bone, the phenomenon of stress shielding occurs, that is, the stress is mainly concentrated on the implant or restoration, and the stress on the part of the bone tissue will be greatly reduced. , according to wolff's law, then bone degeneration and ablation will occur, which will lead to the degeneration of bone tissue, which may lead to the loosening and failure of the implant or prosthesis. At the same t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F119/14G06T17/00
CPCG06T17/00G06F30/23G06F2119/06
Inventor 王宏卫万熠张东刘超任冰于明志张晓
Owner SHANDONG UNIV
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