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Spherical porous filling structure calcaneus prosthesis and optimization design method thereof

A technology for optimized design and porous structure, applied in design optimization/simulation, computer-aided surgery, computer-aided medical procedures, etc., to achieve the effect of reducing the effect of stress shielding

Pending Publication Date: 2020-12-15
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For calcaneal prosthesis replacement surgery, it is currently difficult to obtain the relevant mechanical properties of the calcaneal prosthesis during foot movement and complete the design of the calcaneal prosthesis through experiments

Method used

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  • Spherical porous filling structure calcaneus prosthesis and optimization design method thereof
  • Spherical porous filling structure calcaneus prosthesis and optimization design method thereof
  • Spherical porous filling structure calcaneus prosthesis and optimization design method thereof

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments, based on The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top / bottom" etc. are based on the orientations shown in the drawings Or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred t...

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Abstract

The invention discloses a spherical porous filling structure calcaneus prosthesis design method. The method specifically comprises the following steps of S1, obtaining a calcaneus prosthesis model consisting of calcaneus, soft tissues and the ground; S2, performing porous structure modeling on the calcaneus model to obtain spherical porous filling structure calcaneus prosthesis models; S3, makingcombinations of different spherical radiuses r and array spacings a to obtain a plurality of spherical porous filling structure calcaneus prosthesis models; S4, performing finite element analysis on the models consisting of calcaneus prostheses, the soft tissues and the ground in ABAQUS to obtain data of strain energy, stress, displacement and the like of the calcaneus prostheses; and S5, comparing data of maximum strain energy, maximum stress, maximum displacement and the like of the spherical porous filling structure calcaneus prosthesis models with different porosities to obtain an optimalspherical porous filling structure calcaneus prosthesis optimization structure. The invention furthermore provides a spherical porous filling structure calcaneus prosthesis.

Description

technical field [0001] The invention relates to an optimal design method, in particular to an optimal design method for a calcaneal prosthesis with a spherical porous filling structure. Background technique [0002] The calcaneus is the largest load-bearing tarsal bone in the foot and is therefore also extremely vulnerable to injury. Common forms of calcaneal injury include calcaneal fractures, and there are currently two main methods for the treatment of calcaneal fractures, namely surgical treatment and non-operative treatment. Among them, surgical treatment mainly includes: open reduction and internal fixation surgery, calcaneal prosthesis replacement surgery based on additive manufacturing technology. For calcaneal prosthesis replacement surgery, it is currently difficult to obtain the relevant mechanical properties of the calcaneal prosthesis during foot movement and complete the design of the calcaneal prosthesis through experimental methods. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B34/10G16H50/50G06F30/23G06F119/14
CPCA61B34/10G16H50/50G06F30/23A61B2034/105G06F2119/14
Inventor 刘晓颖黄贤伟黄家赞王宠宁吴旭阳岳勇谢吉轩李朋文
Owner HUAQIAO UNIVERSITY
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