Bioerodible magnesium alloy microstructures for endoprostheses
US9603728B2 · kind B2 · utility
3Cited by
16References
18Claims
0Family size
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Key dates
| Filing date | Feb 12, 2014 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Feb 12, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bioerodible endoprosthesis includes a bioerodible magnesium alloy. The bioerodible magnesium alloy has a microstructure including equiaxed Mg-rich solid solution-phase grains having an average grain diameter of less than or equal to 5 microns and second-phase precipitates in grain boundaries between the equiaxed Mg-rich solid solution-phase grains. The beta-phase precipitates have an average longest dimension of 0.5 micron or less. The microstructure can be produced by one or more equal-channel high-strain processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.