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Biodegradable medical zinc-tin alloy as well as preparation method and application thereof

A zinc-tin and alloy technology, applied in the field of medical materials, can solve the problems of inflammatory reaction, reduce the dehydrogenation and excessive magnesium alloy, and slow the degradation rate, and achieve the effects of excellent corrosion resistance, improved mechanical properties, and excellent corrosion resistance.

Inactive Publication Date: 2021-02-26
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although magnesium alloys have a series of advantages, rapid degradation and excessive hydrogen evolution have always been a bottleneck that magnesium alloys cannot overcome.
Compared with magnesium alloys, iron-based alloys have a stable but too slow degradation rate, and their corrosion products can trigger inflammatory reactions

Method used

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  • Biodegradable medical zinc-tin alloy as well as preparation method and application thereof
  • Biodegradable medical zinc-tin alloy as well as preparation method and application thereof
  • Biodegradable medical zinc-tin alloy as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The Zn-1Sn binary alloy ingot material was prepared by using the existing traditional resistance furnace alloy smelting and casting process. The raw materials used in the test were zinc ingots (purity above 99.95%) produced by Wenxi County Metal Co., Ltd. and China Metallurgical Metal Research Institute. The high-purity metal tin nuggets (purity above 99.995%) produced by the Institute, the mass of the tin ingot is 10g, the mass of the zinc ingot is 990g, the mass ratio is 1:99, and the total mass is 1000g. Wash the furnace once with pure zinc before smelting zinc alloy to avoid the influence of other elements. The specific preparation process: put pure zinc metal and pure tin metal into a smelted graphite crucible, put the crucible into a melting furnace for melting, and the melting temperature is 500 ℃, after the added metal is melted, keep it warm for about 10 minutes. During this process, stir continuously, remove slag, and cast it into the mold. The casting temperat...

Embodiment 2

[0043] The Zn-2Sn binary alloy ingot material was prepared by using the existing traditional resistance furnace alloy smelting and casting process. The raw materials used in the test were zinc ingots (purity above 99.95%) produced by Wenxi County Metal Co., Ltd. and China Metallurgical Metal Research Institute. The high-purity metal tin nuggets (with a purity of 99.995%) produced by the Institute, in which the mass of the tin ingot is 20g, the mass of the zinc ingot is 980g, the mass ratio is 1:49, and the total mass is 1000g. Wash the furnace once with pure zinc before smelting zinc alloy to avoid the influence of other elements. The specific preparation process: put pure zinc metal and pure tin metal into a smelted graphite crucible, put the crucible into a melting furnace for melting, and the melting temperature is 500 ℃, after the added metal is melted, keep it warm for about 10 minutes. During this process, stir continuously, remove slag, and cast it into the mold. The cas...

Embodiment 3

[0045] The Zn-5Sn binary alloy ingot material was prepared by using the existing traditional resistance furnace alloy smelting and casting process. The raw materials used in the test were zinc ingots (purity above 99.95%) produced by Wenxi County Metal Co., Ltd. and China Metallurgical Metal Research Institute. High-purity metal tin nuggets (purity above 99.995%) produced by the institute, the mass of tin ingots is 50g, the mass of zinc ingots is 950g, the mass ratio is 1:19, and the total mass is 1000g. Wash the furnace once with pure zinc before smelting zinc alloy to avoid the influence of other elements. The specific preparation process: put pure zinc metal and pure tin metal into a smelted graphite crucible, put the crucible into a melting furnace for melting, and the melting temperature is 500 ℃, after the added metal is melted, keep it warm for about 10 minutes. During this process, stir continuously, remove slag, and cast it into the mold. The casting temperature is 440...

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Abstract

The invention relates to the technical field of medical materials, in particular to a biodegradable medical zinc-tin alloy and a preparation method and application thereof. The biodegradable medical zinc-tin alloy comprises zinc and tin, wherein tin accounts for 0-10wt%, excluding 0, of the zinc-tin alloy, a total content of the zinc and the tin is 0-99.95wt% excluding 0, and the balance is impurities. According to the preparation method, homogenization heat treatment is conducted on an alloy ingot in a casting state, and compared with pure zinc, the biodegradable zinc-tin alloy has the advantages that the mechanical property is good, processing is easy, the corrosion resistance is good, the hemolysis rate is lower than 5%, the surface adhesion morphology is good, and the blood compatibility is good, and the alloy can be used as a material for preparing various degradable medical implants.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a biodegradable medical zinc-tin alloy, a preparation method and an application thereof. Background technique [0002] Biomedical materials are materials used to diagnose, treat, repair or replace diseased tissues and organs of living organisms or enhance their functions. It is the basis for the study of artificial organs and medical devices, and can be divided into repair materials, cardiovascular system materials, medical membrane materials, drug release carrier materials, biosensor materials, dental materials, etc. according to their uses. According to the composition and properties, there are mainly biomedical metal materials, bioceramics, biomedical polymers, biomedical composite materials and bio-derived materials. Biomedical metal materials have high mechanical strength and fatigue resistance, and are the most widely used load-bearing implant materials in clinic...

Claims

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Application Information

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IPC IPC(8): C22C18/00C22C1/02C22F1/16A61L27/04A61L27/54A61L27/58A61L31/02A61L31/14A61L31/16
CPCA61L27/047A61L27/54A61L27/58A61L31/022A61L31/148A61L31/16A61L2300/102A61L2300/412A61L2300/416C22C1/02C22C18/00C22F1/165
Inventor 欧俊龙舟玲郎海洋沈翀梁丽华
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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