Method of preparing porous calcium phosphate granules
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United States of America Patent
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Jun 3, 2008
Grant Date -
Nov 24, 2005
app pub date -
Apr 7, 2003
filing date -
May 6, 2002
priority date (Note) -
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Abstract
The invention describes a method of preparing macroporous calcium phosphate granules with NaCl porogen technique, wherein a calcium phosphate self-setting cement powder is mixed with 30 to 80 wt % NaCl. The calcium phosphate granules comprise macro- and micropores communicating with one another substantially throughout the body with a porosity of 40% or more and having the same mineral as those of human bones. Said granules are used as a substitute or repairing material for bone, carrier material for drug delivery and gradual release system.
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