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Personalized femoral prosthesis and manufacturing method

A technology of femoral prosthesis and manufacturing method, which is applied in the field of personalized femoral prosthesis and manufacturing, can solve the problems of low design efficiency, difficult molding, easy loosening, etc., and achieve the effect of improving design efficiency and increasing service life

Inactive Publication Date: 2016-08-17
SOUTH CHINA UNIV OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing biofixed implants are simple designs such as adding ribs to the surface of the prosthesis, and the molding method adopts traditional casting, which has the disadvantages of low design efficiency, poor biocompatibility, easy loosening and difficult molding

Method used

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  • Personalized femoral prosthesis and manufacturing method
  • Personalized femoral prosthesis and manufacturing method
  • Personalized femoral prosthesis and manufacturing method

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Embodiment

[0035] like Figures 1 to 4 shown. The invention discloses a personalized femoral prosthesis. The femoral prosthesis structure includes: a patella articular surface prosthesis 400 and a femoral articular surface prosthesis 200 inside the articular surface prosthesis 400; the femoral articular surface prosthesis 200 is provided with two A symmetrical femoral condyle prosthesis 100;

[0036] On the middle surface of the femoral articular surface prosthesis 200 , the truss porous structure prosthesis 300 is distributed in an array; on both sides of the femoral articular surface prosthesis 200 there are femoral platform prosthesis 500 .

[0037] In order to achieve good biocompatibility of the biofixed femoral prosthesis and prevent the prosthesis from loosening, the truss porous structure prosthesis 300 has multiple layers, and the pores in each layer are gradient pores, and the pore diameter gradually increases from inside to outside. That is, the diameter of the holes near th...

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Abstract

The invention discloses a personalized femoral prosthesis and a manufacturing method. The femoral prosthesis structure includes: a patella articular surface prosthesis and a femoral articular prosthesis inside the articular surface prosthesis; Symmetric femoral condyle prosthesis; on the middle surface of the femoral articular surface prosthesis, a truss porous structure prosthesis is distributed in an array; femoral platform prosthesis is arranged on both sides of the femoral articular surface prosthesis. By adopting the parametric modeling method, the change of the model does not need to be redesigned, it can be completed only by adjusting the input parameters, which can greatly improve the design efficiency; due to the adoption of the parametric modeling method, the porosity and average pore diameter can be directly adjusted by adjusting the input parameters , surface area to volume ratio to meet the needs of different age groups; due to the force analysis of motion simulation, the optimal distribution of personalized femoral prosthesis mechanics can be realized.

Description

technical field [0001] The invention relates to the design and manufacture of a femoral prosthesis based on 3D printing, in particular to a personalized femoral prosthesis and a manufacturing method. Background technique [0002] Due to bone disease, bone trauma, congenital deformity and other reasons, it cannot move normally, seriously affects people's physical and mental health, and even endangers life, so it needs to be repaired or replaced by surgery. At present, most of the implants used in domestic surgery are imported products, which have a low degree of matching and similarity with the Chinese race. Therefore, there is an urgent need to research and develop femoral prostheses suitable for Chinese personalized medical implants. Conventional personalized implants have the disadvantages of poor biocompatibility and easy loosening after implantation. [0003] Personalized biofixed implants have gradually begun to be used because of their good biocompatibility, excellent...

Claims

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Application Information

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IPC IPC(8): A61F2/36A61F2/28A61F2/30
CPCA61F2/30A61F2/38A61F2002/30001A61F2/36A61F2/28A61F2/30942A61F2002/2825A61F2002/30011A61F2002/30154A61F2002/30224A61F2002/30948A61F2002/30952
Inventor 杨永强张国庆宋长辉王安民
Owner SOUTH CHINA UNIV OF TECH
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