Degradable medical implant metal material and preparation method thereof

An alloy material, biomedical technology, applied in the field of medical metal material preparation, can solve problems such as rare earth element hazards, and achieve the effects of reducing oxide impurities or element burnout, excellent mechanical properties, and good mechanical properties
CN105986146AActive Publication Date: 2016-10-05LEPU MEDICAL TECH (BEIJING) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
LEPU MEDICAL TECH (BEIJING) CO LTD
Publication Date
2016-10-05

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Abstract

The invention relates to a biological medical degradable zinc-based alloy. The biological medical degradable zinc-based alloy is characterized in that a zinc alloy system is composed of Zn, Mg, Ca and Mn and comprises, by mass, 0 to 1.5% of Mg, 0 to 0.5% of Ca and 0 to 0.2% of Mn, with the balance being Zn, wherein Mg is not equal to 0. The zinc-based alloy prepared in the invention avoids introduction of unfavorable elements, has good mechanical properties, excellent corrosion resistance and strong corrosion failure controllability, and can meet requirements for biological safety and comprehensive mechanical properties of a biomaterial in the field of medical instruments.
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Description

technical field

[0001] The invention relates to a biomedical metal material and a preparation method thereof, in particular to a fully degradable zinc-based alloy in a living body and a preparation method thereof, belonging to the technical field of medical metal material preparation. Background technique

[0002] In recent years, magnesium alloys and iron alloys, as a new generation of revolutionary metal medical materials with biodegradable properties, have received special attention from researchers. This kind of material cleverly utilizes the active chemical properties of metals, which can show relatively corrosive characteristics in body fluids, so as to realize the clinical purpose of implants degrading and eventually disappearing without causing toxic side effects. However, the current degradable medical metal materials have certain defects. Degradable metals represented by magnesium-based alloys generally degrade completely in the human body within a few days, and c...

Claims

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