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3D printing based hydroxyapatite/silicon dioxide composite porous biological ceramic bracket preparation method

A hydroxyapatite and 3D printing technology, which is applied in medical applications, 3D printing technology and bioceramics, can solve the problems of difficult to achieve porous structure, simple structure and low precision, and achieve low cost, high molding rate and high precision Effect

Active Publication Date: 2019-05-28
BEIJING UNIV OF TECH
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Problems solved by technology

However, it is very difficult to make porous structure ceramics by traditional manufacturing technology, because it needs to rely on the experience of molds and workers in the preparation stage of the green body. lower ceramic bracket

Method used

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  • 3D printing based hydroxyapatite/silicon dioxide composite porous biological ceramic bracket preparation method
  • 3D printing based hydroxyapatite/silicon dioxide composite porous biological ceramic bracket preparation method
  • 3D printing based hydroxyapatite/silicon dioxide composite porous biological ceramic bracket preparation method

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example 1

[0027] The first step, using Solidworks TM The required porous support structure designed by three-dimensional modeling software can be any required porous structure model, and the example of the present invention adopts a square porous structure. The porosity is calculated by software, the mechanical simulation is carried out according to the finite element analysis software ANSYS workbench, and the results are adjusted to obtain the optimal porosity structure model.

[0028] The second step is to configure the hydroxyapatite silica composite slurry, use photosensitive resin as the solvent, add appropriate amount of silica powder, hydroxyapatite powder, binder, photoinitiator, and photopolymerizer in sequence, and stir thoroughly Ball milling after mixing.

[0029] The third step is to use the Jenny 3D printer to print. First, adjust the substrate to be parallel to the resin tank on the bottom surface and determine the best starting position to ensure that the first layer ha...

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Abstract

The invention discloses a 3D printing based hydroxyapatite / silicon dioxide composite porous biological ceramic bracket preparation method and belongs to the field of 3D printing technologies, biological ceramics and medical application thereof. A DLP (digital photo-curing) 3D printing technology has the advantages of high forming speed and high printing precision. In the DLP based 3D printing technology, a bracket with high porosity is prepared by utilizing a three-dimensional personalized customization software; and slurry is prepared according to the demands, ball milling is performed, and then the hydroxyapatite / silicon dioxide composite porous biological ceramic bracket is prepared by utilizing the slurry.

Description

technical field [0001] The invention relates to 3D printing technology, bioceramics, and medical application fields, in particular to a biologically active hydroxyapatite / silicon dioxide composite porous bioceramic support prepared based on digital light curing (DLP) 3D printing technology. Background technique [0002] The application of biomaterials in clinical medicine, especially in tissue reconstruction, is the most exciting and valuable in materials science. Specifically, the earliest biomaterials used in the medical and health industry are ceramics and glass, such as glasses, diagnostic instruments, thermometers, tissue culture bottles, and fiber optic endoscopes. In the past few decades, great progress has been made in the research and development of biomedical materials, including various ceramic materials for bone repair and reconstruction. According to the development trend, the development of materials should help to prolong people's lifespan, provide a better q...

Claims

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Application Information

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IPC IPC(8): B28B1/00B33Y10/00C04B35/447C04B35/622
Inventor 袁艳萍张成宇陈继民
Owner BEIJING UNIV OF TECH
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