Process for affecting the setting and working time of bioresorbable calcium phosphate cements
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United States of America Patent
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Aug 21, 2007
Grant Date -
Jan 19, 2006
app pub date -
Jul 7, 2005
filing date -
Jul 14, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fast-setting, bioresorbable calcium phosphate cement is prepared by a process which can be carried out with a heat treatment up to 1000.degree. C. on a mixture of a wetting solution and a calcium phosphate powder having a Ca to P molar ratio of 0.5-2.5. The wetting solution suitable for use in the process of the present invention includes water, an organic solvent, an acidic and basic solution. A setting solution for mixing with the heated powder to form the fast-setting, bioresorbable calcium phosphate cement may be water, an acidic or basic solution according to the process of the present invention.
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