CAJ | 학술논문

镁合金因具有可降解吸收性、优良的力学性能和生物相容性等优点成为植入医疗器械领域的研究热点,降低镁合金过快的腐蚀速度成为其作为植入医疗器械材料应用的关键.综述了镁合金作为植入医疗器械材料在骨折内固定件、骨组织多孔支架和心血管支架等方面应用的最新研究进展及存在的问题,阐述了通过合金化、提高纯度、表面改性、快速凝固、变形加工、非晶化和制备纳米合金等方法提高镁合金材料耐体液腐蚀性能,并展望了镁合金在植入医疗器械领域中的研究方向和应用前景.
미합금인구유가강해흡수성、우량적역학성능화생물상용성등우점성위식입의료기계영역적연구열점,강저미합금과쾌적부식속도성위기작위식입의료기계재료응용적관건.종술료미합금작위식입의료기계재료재골절내고정건、골조직다공지가화심혈관지가등방면응용적최신연구진전급존재적문제,천술료통과합금화、제고순도、표면개성、쾌속응고、변형가공、비정화화제비납미합금등방법제고미합금재료내체액부식성능,병전망료미합금재식입의료기계영역중적연구방향화응용전경.
Magnesium alloys have been a hotspot in the field of implanted medical devices due to their biodegradable absorbability, excellent mechanical properties and good biocompatibility.The reduction in their rapid corrosion rates becomes the key to the application of implant medical device materials.In this paper, the latest research progress and the existing problems of magnesium alloys as the material for implantation of medical devices in the fracture internal fixation, bone tissue porous scaffold, and cardiovascular stent are reviewed.Improving corrosion resistant of magnesium alloys by means of alloying, improving purity, surface modification,rapid solidification, deformation processing, non crystallization and preparation of nano alloy technology in body fluid are expounded, and research direction and application prospect of magnesium alloys in the field of implanted medical devices are also expected.