Calcium phosphate calcium sulfate composite implant material
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United States of America Patent
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Oct 31, 1995
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N/A
app pub date -
Apr 17, 1991
filing date -
Apr 17, 1991
priority date (Note) -
Expired
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Abstract
This invention provides new inorganic composite materials for hard tissue replacement. The new composite material comprises solid material of calcium sulfate which is fully or partially converted to calcium phosphate from aqueous solution. This composite material has good biocompatibility and controllable resorption, and will be very useful for bone substitute material in orthopaedic and dental applications. The fully converted material which comprises mainly apatite calcium phosphate is also useful for chromatography application. A process to prepare these new composite materials is also described.
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