Artificial bone biotic producing process based on quick forming and steoro weaving

A three-dimensional weaving and manufacturing technology, applied in prostheses, bone implants, medical science, etc., can solve problems such as poor process controllability, inability to ensure conduction of holes, and inability to carry out bionic design and manufacturing, to ensure the overall adaptive effect

Inactive Publication Date: 2005-01-12
XI AN JIAOTONG UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to realize the matching of artificial bone and human bone shape, the traditional method mainly completes the personalized matching of artificial bone and human bone through manual repair, or through appropriate mechanical processing methods; in order to construct the artificial bone microscopic channel system, the traditional method There are pore forming method, foaming pore forming method, thermally induced phase separation method, fiber weaving method, extrusion molding method and embossing molding method, etc., but these methods have holes that cannot guarantee conduction and poor process controllability and the inability to perform biomimetic design and fabrication of microstructures

Method used

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  • Artificial bone biotic producing process based on quick forming and steoro weaving
  • Artificial bone biotic producing process based on quick forming and steoro weaving
  • Artificial bone biotic producing process based on quick forming and steoro weaving

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Experimental program
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Effect test

Embodiment 1

[0014] Example 1, see figure 1 First, according to the requirements of human bones, rapid prototyping is used to manufacture personalized shape molds for artificial bones, or rapid prototyping is used to manufacture personalized resin lost foam plus precision casting to manufacture implantable personalized metal frames. Using rapid prototyping to make artificial bone shell molds and resin lost foam, it is necessary to construct the CAD model through computer-aided design (CAD) in advance, and then export the triangular surface files to different types of rapid prototyping machines. After the data preparation process, the rapid prototyping machine Process the shell mold or resin lost foam that is consistent with the CAD model; if you want to get a metal frame, you need to further coat the model to make a shell, and then make an implantable personalized metal frame through sintering demoulding and precision casting. To ensure the adaptability of the overall shape of the artifici...

Embodiment 2

[0018] Embodiment 2, first utilize rapid prototyping to manufacture artificial bone shape forming mold according to the requirements of human skeleton or utilize rapid prototyping to manufacture lost foam plus precision casting to manufacture implantable metal frame, in order to ensure the adaptability of artificial bone overall form mold or metal There are small holes with a diameter of 2.4mm and a spacing of 1.5mm at even intervals on the frame;

[0019] 2) Use absorbable surgical suture or catgut as the braided thread, coat collagen or agarose on the absorbable suture or catgut, and control the diameter of the braided thread to 0.6mm by the number of times of coating and hanging;

[0020] 3) The three-dimensional weaving method is used to shuttle between the small holes of the mold or the metal frame, and weave the coated and hung braided wires to form a three-dimensional network structure;

[0021] 4) Inject the paste-like bioactive material tricalcium phosphate into the m...

Embodiment 3

[0022] Embodiment 3, first utilize rapid prototyping to manufacture artificial bone shape forming mold according to the requirements of human skeleton or utilize rapid prototyping to manufacture lost foam plus precision casting to manufacture implantable metal frame, in order to ensure the adaptability of artificial bone overall shape mold or metal There are small holes with a diameter of 3mm and a spacing of 7.0mm at even intervals on the frame;

[0023] 2) Use absorbable surgical suture or catgut as the braided thread, coat and hang collagen or agarose on the absorbable suture or catgut, and control the diameter of the braided thread to 1.0mm by the number of times of coating and hanging;

[0024] 3) The three-dimensional weaving method is used to shuttle between the small holes of the mold or the metal frame, and weave the coated and hung braided wires to form a three-dimensional network structure;

[0025] 4) Inject the paste-like bioactive material polyglycolide into the ...

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Abstract

A bionic technology based on fast shaping and 3D braiding for preparing artificial bone features that the 3D braiding and coating are used to form a microchannel structure of artificial bone and the fast shaping is used for generating the integral shape of artificial bone to match with the bone of patient.

Description

technical field [0001] The invention relates to a manufacturing process of artificial bone, in particular to a bionic manufacturing process of artificial bone based on rapid prototyping and three-dimensional weaving, which is suitable for treating large segmental bone defects. Background technique [0002] For the artificial bone implanted in the body, the macroscopic shape of the artificial bone determines the shape of the new bone, so if the macroscopic shape of the artificial bone does not match the human bone shape, it will lead to the deformation of the new bone. The microscopic channels inside the artificial bone can not only promote the degradation of the artificial bone, but also a necessary condition for the growth of new bone. Without these microporous structures, it will be difficult for the implanted artificial bone to complete the process of cell crawling and osteogenesis. And become a permanent dead bone. Therefore, in order to realize the matching of artifici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/28A61L27/00A61L27/54
Inventor 卢秉恒刘亚雄孙明林连芩
Owner XI AN JIAOTONG UNIV
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