| 发明名称 |
Bioerodible Magnesium Alloy Microstructures for Endoprostheses |
| 摘要 |
A bioerodible endoprosthesis includes a bioerodible body including an alloy comprising at least 85 weight percent magnesium and at least one high-melting-temperature element having a melting temperature of greater than 700° C. The alloy has a microstructure including equiaxed magnesium-rich phase grains and optionally high-melting-temperature intermetallic phases. The equiaxed magnesium-rich phase grains have an average grain diameter of less than or equal to 10 microns. High-melting-temperature intermetallic phases, if present, can have an average longest dimension of 3 microns or less. |
| 申请公布号 |
US2016263288(A1) |
申请公布日期 |
2016.09.15 |
| 申请号 |
US201615068132 |
申请日期 |
2016.03.11 |
| 申请人 |
Boston Scientific Scimed, Inc. |
发明人 |
Edick Jacob Drew;Stinson Jonathan S. |
| 分类号 |
A61L31/02;C22C23/02;B21C23/00;A61F2/04;A61F2/06;A61F2/82;A61L31/14;C22C23/06 |
主分类号 |
A61L31/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A bioerodible endoprosthesis comprising:
a bioerodible body comprising an alloy comprising at least 85 weight percent magnesium and at least one high-melting-temperature element having a melting temperature of greater than 700° C., the alloy having a microstructure comprising equiaxed magnesium-rich phase grains and optionally high-melting-temperature intermetallic phases, the equiaxed magnesium-rich phase grains having an average grain diameter of less than or equal to 10 microns and the high-melting-temperature intermetallic phases, if present, comprising at least 20 weight percent of one or more high-melting-temperature elements and having an average longest dimension of 3 microns or less. |
| 地址 |
Maple Grove MN US |
