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A design method of porous structure based on bone trabecular structure morphology and mechanical properties

A design method and technology of porous structure, applied in the field of biomedical engineering, can solve the problem of discontinuous growth of bone cells in stress distribution, and achieve the effect of easy processing, reduction of calculation amount and complexity

Inactive Publication Date: 2018-12-28
DALIAN UNIV OF TECH
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Problems solved by technology

This design method can control the mechanical properties of the structure, and the structure is simple, which is more conducive to the later processing. However, due to the problem of stress distribution, it is easy to cause discontinuous growth of bone cells.

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  • A design method of porous structure based on bone trabecular structure morphology and mechanical properties
  • A design method of porous structure based on bone trabecular structure morphology and mechanical properties
  • A design method of porous structure based on bone trabecular structure morphology and mechanical properties

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with accompanying drawing.

[0038] Such as figure 1As shown, a porous structure design method based on the structural morphology and mechanical properties of trabecular bone, including the following steps:

[0039] Step 1. Establish a three-dimensional model of the trabecular bone. In order to ensure the correct characterization of the structural shape of the trabecular bone, rebuild the three-dimensional model of the trabecular bone as the basis for structural design, specifically including the following sub-steps:

[0040] (a) According to the experimental design requirements, the trabecular bone structure in the femoral head was intercepted for physical processing such as grinding and cooking, and the DICOM format image of the trabecular bone was obtained by scanning with a Micro-CT instrument;

[0041] (b) Using Mimics software to preprocess the trabecular bone image, including adjusting the wind...

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Abstract

The invention relates to the technical field of biomedical engineering, A method for design porous structure base on structural morphology and mechanical properties of bone trabecula comprises that following step: (1) establishing a three-dimensional model of bone trabecula, (2) solving morphological parameters of bone trabecula, (3) deriving a bone trabecula mesh model, (4) calculating mechanicalproperties of bone trabecula, (5) optimizing the solution of the porous model, and (6) reducing solid structure. The invention considers the structural shape characteristics and mechanical propertiesof the real bone trabecula, realizes the unification of structure and function of the designed porous structure, greatly reduces the calculation amount and complexity in the design, is easy to be processed in the later stage, and provides the basis and method for the replacement treatment of the implant of bone diseases.

Description

technical field [0001] The invention relates to a porous structure design method based on the structural shape and mechanical properties of bone trabeculae, belonging to the technical field of biomedical engineering. Background technique [0002] Trabecular bone is the network structure in the end of long bones such as vertebrae and femur in the body, which supports hematopoietic tissue and ensures the circulation of blood and other substances. Studies have found that when the trabecular bone structure is damaged to a certain extent, the performance of the overall bone structure is significantly reduced. In addition, the structural damage of trabecular bone cannot be restored by the body's own recovery mechanism, and can only be treated by drugs or removal of the damage for implant fixation. Implants cannot be used in the treatment of all injuries due to the inconsistent pattern of failure and degree of damage. The current treatment methods for fractures and other conditio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G16H50/50
CPCG06F30/20G16H50/50
Inventor 刘蓉郭新路王永轩
Owner DALIAN UNIV OF TECH
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