COMPOSITE IMPLANT HAVING POROUS STRUCTURE FILLED WITH BIODEGRADABLE ALLOY AND METHOD OF MAGNESIUM-BASED MANUFACTURING THE SAME
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United States of America Patent
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Issued Date -
Mar 3, 2011
app pub date -
Mar 18, 2009
filing date -
Mar 18, 2008
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Abstract
The present invention provides a composite implant comprising pores of a porous structure filled with a biodegradable magnesium-based alloy. Further, the present invention provides a composite implant which filles pores of the porous structure prepared by a metal, a ceramic or a polymer with a biodegradable magnesium-based alloy. Mechanical properties of the composite implant of the present invention are improved because a magnesium-based alloy filled in its pores increases the strength of a porous structure comprised of a metal, a ceramic or a polymer. Further, it can be expected that the magnesium-based alloy filled in the porous structure is decomposed in a living body, thus increasing bone formation rate. Accordingly bone tissue can be rapidly formed because the composite implant of the present invention has high strength and excellent interfacial force between the composite implant and bone tissue, compared to conventional porous materials.
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