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Medical multi-hole implanted alloy material and preparation method thereof

An alloy material and alloy technology are applied in the field of medical porous implanted alloy materials and their preparation, which can solve the problems of high toxicity and high elastic modulus of added elements, and achieve the effects of easy access, low modulus and reduction of metal modulus.

Active Publication Date: 2013-05-01
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problems of high toxicity of added elements and high elastic modulus in existing biomedical metal implant materials, the purpose of the present invention is to provide a medical porous implant alloy material and its preparation method

Method used

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  • Medical multi-hole implanted alloy material and preparation method thereof
  • Medical multi-hole implanted alloy material and preparation method thereof
  • Medical multi-hole implanted alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Preparation of a medical porous Ti-28Nb-10Ta-5Zr alloy with a macropore diameter of 1 mm

[0031] In this example, a medical porous Ti-28Nb-10Ta-5Zr alloy with a macropore diameter of 1 mm was prepared by using the electron beam rapid prototyping method. The specific steps are as follows:

[0032] 1) First, use CAD software to build a 20×20×20mm three-dimensional model, the interior is a large hole structure with a diameter of 1mm, and perform surface mesh processing on the three-dimensional model to form an STL format file. According to the process requirements, use the software to discretize the three-dimensional model into a series of The unit of the CAD model is divided into 400 layers along the Z direction, that is, the thickness of each layer is 0.05mm. Import the layered model into the electron beam forming equipment, and input the processing parameters (preheating stage temperature, beam intensity, forming stage temperature, beam intensity, electron be...

Embodiment 2

[0035] Example 2 Preparation of a medical porous Ti-32Nb-7Ta-5Zr alloy with a macropore diameter of 2mm

[0036] In this example, a medical porous Ti-32Nb-7Ta-5Zr alloy with a macropore diameter of 2 mm was prepared by the electron beam rapid prototyping method, and the specific steps were as follows:

[0037] 1) First, use CAD software to build a 20×20×20mm three-dimensional model. The interior is a large-pore structure with a diameter of 2mm. The surface grid of the three-dimensional model is processed to form an STL format file. According to the process requirements, the three-dimensional model is discretized into one A series of units divides the CAD model into 400 layers along the Z direction, that is, the thickness of each layer is 0.05mm. Import the layered model into the electron beam forming equipment, and input the processing parameters.

[0038] 2) Screen the gas-atomized spherical Ti-32Nb-7Ta-5Zr alloy powder with a particle size of 80 μm to 100 μm. Level the botto...

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Abstract

The invention discloses a medical multi-hole implanted alloy material which is a multi-hole body made of an alloy including four elements of Ti, Ta, Nb and Zr, wherein the multi-hole body comprises a plurality of large holes with pore diameters ranging from 200 to 500 Mum; a plurality of small holes with pore diameters ranging from 5 to 30 Mum are formed in the hole wall of each large hole; and the porosity of the multi-hole body is larger than or equal to 30 percent. The medical multi-hole implanted alloy material contains no toxic element, and has lower modulus and better biocompatibility. The invention further provides a method for preparing the medical multi-hole implanted alloy material. The medical multi-hole implanted alloy material and the preparation method provided by the invention have the advantages that 1), personalized design directed towards different patients can be realized; 2), the characteristics of high speed, accuracy and goodness at manufacture of substances with complex shapes are achieved; 3), no die is required, so as to reduce manufacturing cost; 4), the porosity of the large holes and the connectivity among the large holes can be adjusted freely, so as to accelerate the ingrowth of osseous tissues and adjust the strength, the modulus and other mechanical properties of an implanted body; and 5), the formation is carried out in a vacuum environment, which facilitates utilization of active metal.

Description

technical field [0001] The invention relates to the field of biomedical materials, in particular to a medical porous implant alloy material and a preparation method thereof. Background technique [0002] Titanium alloy has good corrosion resistance and mechanical properties, and is an ideal biomedical metal material. At present, titanium alloys widely used in clinical bioimplantation are mainly Ti-6Al-4V alloys, but V is a toxic element to the human body. It accumulates in the bones, liver, kidney, spleen and other organs in the human body, and its toxicity exceeds that of Ni and Cr. At the same time, Al element can cause osteomalacia, anemia, and nervous system disorders. Therefore, non-toxic, better biocompatibility, and lower elastic modulus β-type titanium alloys have been studied since the 1990s, and non-toxic elements such as Nb, Ta, Zr, Sn and Mo have gradually become the main additions to the alloy. element. Among them, the Ti-Ta-Nb-Zr alloy system represented by t...

Claims

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Application Information

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IPC IPC(8): C22C1/08C22C14/00
CPCC22C1/08C22C14/00
Inventor 汤慧萍贾文鹏杨广宇赵培黄瑜贺卫卫贾亮
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
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