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Novel antibacterial magnesium alloy

A magnesium alloy, a new type of technology, applied in the field of new antibacterial magnesium alloys, to achieve enhanced biological antibacterial effects, high purity, and less internal defects

Active Publication Date: 2018-08-21
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Magnesium and magnesium alloys have great potential and advantages as a new class of medical implant materials, but the research on the antibacterial properties of magnesium alloys needs further exploration

Method used

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Experimental program
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Effect test

Embodiment

[0039] The chemical composition of a new type of antibacterial magnesium alloy is: Zn: 5-6wt.%, Zr: 0.3-0.9wt.%, Ag: 1.5-15.0wt.%, Cu: 2.0-4.0wt.%. The amount is Mg and unavoidable impurities.

[0040] A preparation method of a novel antibacterial magnesium alloy, the specific steps are as follows:

[0041] Step 1, weigh:

[0042] Take industrial pure magnesium, industrial pure zinc, Mg-Zn-Zr master alloy, Mg-Cu master alloy, Mg-Ag master alloy according to the chemical composition ratio of novel antibacterial magnesium alloy as shown in table 1;

[0043] Step 2, preheating, (a), (b) in no order:

[0044] (a) Place the weighed industrial pure magnesium, industrial pure zinc, Mg-Zn-Zr master alloy, Mg-Cu master alloy, and Mg-Ag master alloy in a vacuum drying oven, dry and preheat at 200°C for 20min,

[0045] (b) Place the weighed industrially pure zinc in a vacuum oven, dry and preheat at 120°C for 20 minutes;

[0046] Step 3, smelting:

[0047] industrially pure magnesiu...

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Abstract

The invention discloses antibacterial magnesium alloy, and belongs to the field of preparation of magnesium alloy biomedical materials. The magnesium alloy comprises the following chemical componentsin percentage by weight: 5 to 6 wt.% of Zn, 0.3 to 0.9 wt.% of Zr, 1.5 to 15.0 wt.% of Ag, 2.0 to 4.0 wt.% of Cu, and the balance of Mg and inevitable impurities. The magnesium alloy has higher strength and corrosion resistance on the promise of maintaining good biocompatibility and biodegradability. Through the optimization of component design of the magnesium alloy and adding of Ag and Cu elements, the magnesium alloy gives antibacterial activity to magnesium alloy implantable devices, effectively avoids the occurrence of infection of peripheral cell or tissue of an implant, and obviously improves the success rate and prognosis effect of implantation treatment.

Description

technical field [0001] The invention belongs to the field of magnesium alloy biomedical material preparation, and in particular relates to a novel antibacterial magnesium alloy. Background technique [0002] With the continuous development of high-tech science and technology, because of the good mechanical properties, good biocompatibility and degradability of magnesium alloy, it is more and more favored by the biomedical field, especially for the manufacture of internal implants. aroused widespread concern. Magnesium alloy is a high-performance light-weight structural material made of magnesium. Its specific gravity is similar to that of plastic, and its rigidity and strength are no less than aluminum. It has strong shock resistance, anti-electromagnetic, thermal conductivity, and electrical conductivity. create pollution. Using magnesium alloy as raw material to produce implants has many advantages, such as the density of magnesium at 1.74g / cm 3 About, and the bone dens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/04C22C1/03C22C1/06C22F1/06
CPCC22C1/03C22C1/06C22C23/04C22F1/06
Inventor 铁镝任浩博颜路飞管仁国李洪超赵阳
Owner NORTHEASTERN UNIV
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