Drug – bio-affecting and body treating compositions – Inorganic active ingredient containing – Phosphorus or phosphorus compound
Reexamination Certificate
2005-08-02
2005-08-02
Clardy, S. Mark (Department: 1616)
Drug, bio-affecting and body treating compositions
Inorganic active ingredient containing
Phosphorus or phosphorus compound
C424S422000, C424S423000, C424S601000, C424S605000, C424S682000, C424S688000, C424S694000, C514S063000, C514S075000, C514S143000, C514S769000, C514S772000
Reexamination Certificate
active
06923989
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.
REFERENCES:
patent: 5522893 (1996-06-01), Chow et al.
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XP-002154942, JP62122670, Jun. 3, 1987.
Freche Michèle
Goncalves Stephane
Lacout Jean-Louis
Rodriguez Fernand
Ceravic
Choi Frank
Clardy S. Mark
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