Bio-absorbable Mg-Zn-Ca three-elements magnesium alloy material

Abstract

A medical Mg-Zn-Ca alloy material absorbable in biologic body is proportionally prepared from high-purity full-nutritive Mg and Zn to form MgZn phase for high strength and anticorrosion nature, and Ca for fining grains for high strength and plasticity. It has high biocompatibility and mechanical performance and can be used for intravescular scaffold, bone nail, bone plate, etc.

Description

technical field

[0001] The invention relates to a multi-component magnesium alloy in the field of biomedical materials, specifically, a Mg-Zn-Ca ternary magnesium alloy material that can be absorbed in a living body. Background technique

[0002] Biodegradable absorbent materials in vivo are one of the important directions for the development of biomaterials. The currently researched and developed biodegradable absorbent materials in vivo are mainly polymer materials and certain ceramic materials, such as polylactic acid, polycaprolactone, calcium phosphate, etc. However, because the mechanical properties of polymer materials are generally low, the plasticity and toughness of ceramic materials are poor, and metal materials have good comprehensive mechanical properties, therefore, metal-based biodegradable absorbable materials have important medical application value. Magnesium is one of the most abundant elements on the earth. It is also the fourth most abundant cation in th...