Biodegradable magnesium alloy without rare earth elements and preparation method of biodegradable magnesium alloy

A technology of rare earth elements and magnesium alloys, applied in the field of medical materials, can solve the problems of uncontrollable degradation rate and biological toxicity of biodegradable magnesium alloys, and achieve the effects of maintaining strength, refining grains, and improving strength and plasticity

Inactive Publication Date: 2021-04-23
SHANGHAI KINDLY MEDICAL INSTR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the degradation rate of the existing biodegradable magnesium alloy is uncontrollable and the degradation will cause biological toxicity, the present invention provides a biodegradable magnesium alloy that does not contain rare earth elements

Method used

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  • Biodegradable magnesium alloy without rare earth elements and preparation method of biodegradable magnesium alloy
  • Biodegradable magnesium alloy without rare earth elements and preparation method of biodegradable magnesium alloy
  • Biodegradable magnesium alloy without rare earth elements and preparation method of biodegradable magnesium alloy

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Embodiment 1

[0031] This embodiment provides a biodegradable magnesium alloy that does not contain rare earth elements. The preparation method is as follows: The metal powders are fully mixed, and then melted at 700° C. and then cast into blocks to obtain the biodegradable magnesium alloy.

Embodiment 2

[0033] This embodiment provides a biodegradable magnesium alloy that does not contain rare earth elements. The preparation method is as follows: The metal powders are fully mixed, and then melted at 800° C. and then cast into blocks to obtain the biodegradable magnesium alloy.

Embodiment 3

[0035] This embodiment provides a biodegradable magnesium alloy that does not contain rare earth elements. The preparation method is as follows: The metal powder is fully mixed according to the required ratio, and then melted at 720° C. and then cast into a block to obtain the biodegradable magnesium alloy.

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Abstract

The invention discloses a biodegradable magnesium alloy without rare earth elements. The magnesium alloy is prepared from 90-97 parts of Mg, 2-6 parts of Zn, 0.01-2 part of Ca and 0.01-2 part of Mn, and impurities of the magnesium alloy do not contain rare earth. The invention further discloses a preparation method of the biodegradable magnesium alloy and application of the biodegradable magnesium alloy to preparation of medical instruments. Mg serves as a main body and is mixed with Zn, Ca and Mn in a specific proportion to prepare the alloy, the degradation speed is controllable, the alloy has high mechanical strength, elements harmful to the human body do not exist, and the alloy does not influence the human body when degraded in the human body.

Description

technical field [0001] The invention relates to the field of medical materials, in particular to a biodegradable magnesium alloy containing no rare earth elements, a preparation method and application thereof. Background technique [0002] Medical metal materials are biomaterials that have developed rapidly in recent years. Due to their excellent mechanical properties, they are more suitable for implant materials in load-bearing parts than non-metal materials. Today's commonly used medical metal materials include stainless steel, titanium and titanium alloys, cobalt-chromium alloys, precious metals, magnesium alloys, etc. [0003] Magnesium alloy has become a widely used medical metal material due to its low density, high strength, and easy machining and welding. Due to the active nature of magnesium, it is easy to be corroded in the human body. This used to be the shortcoming of magnesium alloys used in the human body. However, unlike other metal materials, magnesium itsel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C23/04C22C1/02
CPCC22C1/02C22C23/04
Inventor 梁栋科赵峥尚磊李涛林森
Owner SHANGHAI KINDLY MEDICAL INSTR CO LTD
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