Bioerodible endoprosthesis
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United States of America Patent
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-
Aug 7, 2012
Grant Date -
Dec 10, 2009
app pub date -
Jun 10, 2008
filing date -
Jun 10, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An endoprosthesis can include a body including an underlying portion and a surface portion overlying the underlying portion. The underlying portion can include a bioerodible metal in the form of a matrix and corrosion enhancing deposits within the matrix. The surface portion including the bioerodible metal of the matrix. The surface portion having a first erosion rate when exposed to a physiological environment and the underlying portion having a second erosion rate when exposed to a physiological environment that is greater than the first erosion rate.
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