Method for preparing a calcium phosphate pasty material for injection
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United States of America Patent
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Aug 2, 2005
Grant Date -
Jan 30, 2003
app pub date -
Feb 27, 2001
filing date -
Mar 1, 2000
priority date (Note) -
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Abstract
A method for preparing a calcium phosphate pasty material for injection which after, setting, is designed to form an apatite material consists in: producing from water and calcium phosphates pasty mixture capable of developing, hardening and forming a hydroxyapatite. The method is characterised in that it consists in adding to the calcic phosphates or to the pasty mixture before it is injected a methicone having relative to the mixture more than 0.30 wt. % and less than 10 wt. %. The resulting material can be injected, that is it can be transported in pasty form into a conduit under moderate pressure levels. The material sets on the site of implantation and hardens to form an apatite biomaterial in a manner similar to known methicone-free calcium phosphate mixtures.
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