Bioactive ceramic coated surgical implant
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United States of America Patent
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-
Jan 2, 1996
Grant Date -
N/A
app pub date -
Sep 22, 1993
filing date -
Sep 22, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A metallic implant base is coated with two bioactive ceramic layers. An inner bioactive ceramic layer is coated on the implant base. An outer bioactive ceramic layer is coated on the inner bioactive ceramic layer. The inner bioactive layer is vitrified at a ratio of not less than 50 volume percent, thereby improving the bonding of the inner bioactive layer to the metallic implant base and preventing migration of the metal ions from the metallic implant base. The outer bioactive ceramic layer is vitrified to a ratio of substantially less than 50 volume percent, thereby providing a desired porosity.
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