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Digital customization method of orthopedic implant material

A technology for implant materials and bone materials, which is applied in the field of material preparation, can solve problems such as lack of antibacterial properties, poor biological activity, and increased difficulty in processing and manufacturing, and achieve good application prospects, good pore characteristics, and good biocompatibility.

Active Publication Date: 2020-11-13
THE AFFILIATED HOSPITAL OF PUTIAN UNIV (THE SECOND HOSPITAL OF PUTIAN CITY)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, medical titanium alloy has been widely used in the production of various orthopedic and oral medical devices, such as artificial joints, bone trauma products and other orthopedic products, as well as orthodontic products due to its excellent biocompatibility, non-magnetic properties and corrosion resistance. , including Ti-13Nb-13Zr, Ti-25Nb-2Zr, Ti-24Nb-4Zr-7.9Sn, etc. This series of alloys has good mechanical properties and can be used as a human implant material to carry large parts, but biological Poor activity and no antibacterial properties
[0003] The existing medical metal materials are basically mass-produced, and there is no way to combine them with the actual conditions of patients. Different patients require different implant materials, and mass production increases the difficulty of later processing and manufacturing. Therefore, it is urgent to find an implant that can Tailor-made orthopedic implant materials according to the specific conditions of different patients, and the prepared materials can have a modulus of elasticity close to that of human bone, and have higher compatibility with the human body and higher strength.

Method used

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  • Digital customization method of orthopedic implant material

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Experimental program
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Effect test

Embodiment 1

[0020] A method for digitally customizing orthopedic implant materials, specifically comprising the following steps:

[0021] (1) Apply thin-section CT technology and Mimics software to establish a three-dimensional spatial structure model of the bone material required for the patient's bone defect; perform data processing on the three-dimensional model to make the shape of the three-dimensional spatial structure model consistent with the required bone material, with a grid in the middle Like structure, the side length of each unit body in the grid-like structure is 2mm.

[0022] (2) Import the processed three-dimensional model data into a metal 3D printer, and print to obtain a spatial structure reinforcement. The spatial structure reinforcement is obtained by 3D printing using a mixed powder of Ti, Nb, and Zr as a raw material. The mixed powder is denoted as A, the mass percentage of each element in the mixed powder A is Nb 20%, Zr 18%, and the balance is Ti, and the particl...

Embodiment 2

[0028] A method for digitally customizing orthopedic implant materials, specifically comprising the following steps:

[0029] (1) Apply thin-section CT technology and Mimics software to establish a three-dimensional spatial structure model of the bone material required for the patient's bone defect; perform data processing on the three-dimensional model to make the shape of the three-dimensional spatial structure model consistent with the required bone material, with a grid in the middle Like structure, the side length of each unit body in the grid-like structure is 3mm.

[0030] (2) Import the processed three-dimensional model data into a metal 3D printer, and print to obtain a spatial structure reinforcement. The spatial structure reinforcement is obtained by 3D printing using a mixed powder of Ti, Nb, and Zr as a raw material. The mixed powder is denoted as A, the mass percentage of each element in the mixed powder A is Nb 19%, Zr 15%, and the balance is Ti, and the particl...

Embodiment 3

[0036] A method for digitally customizing orthopedic implant materials, specifically comprising the following steps:

[0037] (1) Apply thin-section CT technology and Mimics software to establish a three-dimensional spatial structure model of the bone material required for the patient's bone defect; perform data processing on the three-dimensional model to make the shape of the three-dimensional spatial structure model consistent with the required bone material, with a grid in the middle Like structure, the side length of each unit body in the grid-like structure is 2mm.

[0038] (2) Import the processed three-dimensional model data into a metal 3D printer, and print to obtain a spatial structure reinforcement. The spatial structure reinforcement is obtained by 3D printing using a mixed powder of Ti, Nb, and Zr as a raw material. The mixed powder is denoted as A, the mass percentage of each element in the mixed powder A is Nb 18%, Zr 17%, and the balance is Ti, and the particl...

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Abstract

The invention discloses a digital customization method of an orthopedic implant material, and belongs to the technical field of material preparation. According to the method, a three-dimensional spacestructure model of a bone material needed by the bone defect part of a patient is established by application of a thin-slice CT technology and Mimics software; a three-dimensional grid space structure is printed by a 3D printer, hydroxyapatite and ammonium hydrogen carbonate mixed slurry is added to the three-dimensional grid space structure, surface treatment is performed after drying and sintering, and the needed orthopedic implant material is obtained. With adoption of the method, digital customization can be carried out according to actual conditions of the patient, the orthopedic implantmaterial in various shapes can be customized, and besides, the orthopedic implant material has higher strength and lower elasticity modulus, and has better antibacterial performance after the surfacetreatment.

Description

technical field [0001] The invention relates to a method for digitally customizing orthopedic implant materials, and belongs to the technical field of material preparation. Background technique [0002] Medical metal materials refer to a class of metals or alloys used as biological materials, also known as surgical metal materials. It is a kind of biologically inert material. In addition to high mechanical strength and fatigue resistance, good biomechanical properties and related physical properties, it must also have excellent physiological corrosion resistance, biocompatibility, and non-toxicity. And simple, feasible and exact surgical technique. At present, medical titanium alloy has been widely used in the production of various orthopedic and oral medical devices, such as artificial joints, bone trauma products and other orthopedic products, as well as orthodontic products due to its excellent biocompatibility, non-magnetic properties and corrosion resistance. , includ...

Claims

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Application Information

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IPC IPC(8): B22F3/11C23C4/08C23C4/12A61L27/30A61L27/42A61L27/54A61L27/56B33Y10/00B33Y80/00
CPCB22F3/1121C23C4/08C23C4/12A61L27/54A61L27/425A61L27/56A61L27/306B33Y10/00B33Y80/00A61L2430/02A61L2300/404
Inventor 陈宣煌林海滨高小强
Owner THE AFFILIATED HOSPITAL OF PUTIAN UNIV (THE SECOND HOSPITAL OF PUTIAN CITY)
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