PAPIROV, IGOR ISAKOVICH,PIKALOV, ANATOLIY IVANOVICH,SIVTSOV, SERGEY VLADIMIROVICH,SHOKUROV, VLADIMIR SERGEEVICH,POPOWSKI, YOURI
申请号：
NZ59954810
公开号：
NZ599548A
申请日:
2010.10.29
申请国别(地区):
NZ
年份:
2013
代理人:
摘要：
599548 A medical biodegradable endoprosthesis body, formed at least partly from a constructional material of an alloy comprising super-pure magnesium and one or more super-pure alloying elements?wherein the super-pure magnesium has a purity of not less than 99.998 % (w/w) and contains a level of impurity of iron?cobalt?nickel and copper?each equal to or less than 0.0002 % (w/w) of each said impurity； one or more super-pure alloying elements each has a purity not lower than 99.99 % (w/w) and each contains impurity of iron?cobalt?nickel and copper at a level of no more than 0.00025 % (w/w) of each said impurity?wherein the one or more super pure alloying elements is chosen from scandium?yttrium?indium?gallium or one or more rare earth elements. Preferably wherein the content of super-pure scandium in the alloy is between 0.1 and 15% (w/w) or the super-pure alloying element is yttrium?indium?gallium or one or more rare earth elements and the content in the alloy is between 0.1 and 5% (w/w). Preferably wherein the construction material has a grain size of less than 5 microns. Specifically wherein the endoprosthesis is a medical stent, staple, bolt, plate, coil, catheter, screw, tubular mesh, wire, spiral or X-ray marker.
