BIOERODIBLE MAGNESIUM ALLOY MICROSTRUCTURES FOR ENDOPROSTHESES

A bioerodible endoprosthesis includes a bioerodible magnesium alloy. The bioerodible magnesium alloy has magnesium and one or more additional alloying elements, including aluminum. The alloy has a microstructure comprising equiaxed Mg-rich solid solution phase grains having an average grain diameter...

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Bibliographische Detailangaben
Hauptverfasser: Weber, Jan, Edick, Jacob Drew, Scheuermann, Torsten, Deng, Charles, Stinson, Jonathan S, Toth, Louis, Boismier, Dennis A
Format: Patent
Sprache:eng
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Zusammenfassung:A bioerodible endoprosthesis includes a bioerodible magnesium alloy. The bioerodible magnesium alloy has magnesium and one or more additional alloying elements, including aluminum. The alloy has a microstructure comprising equiaxed Mg-rich solid solution phase grains having an average grain diameter of less than or equal to 5 microns and continuous or discontinuous second-phase precipitates in grain boundaries between the Mg-rich solid solution-phase grains, the second-phase precipitates having an average longest dimension of 0.5 micron or less.