世界铌铁工业近况及发展动向

介绍了近年来国外铌铁的生产、应用、供需状况和国内铌铁的生产、需求情况。铌铁生产的地缘不平衡性和供给的高度垄断性以及资源充足、供大于求、价格相对稳定是世界铌铁供求的两大特点。今后世界铌铁工业将持续稳定发展。     

Biocompatibility evaluation of NiTi SMA stent via intervenient therapy

1IntrouctlonNi Ti stent are medical devices i mplanted into human body via intervenient therapy,which are wovenout of Ni Ti memory alloy wire.Ni Ti stent for certain purposes are coated with silicon rubber and havelong-termosculation with organs such as esophagus,bile duct,trachea,blood vessel,etc.,which requiresexcellent biocompatibility as an i mportant criterion to ensure their safe and effective clinical application.The International Organization for Standardization has established the …