Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Reexamination Certificate
2006-12-19
2006-12-19
Levy, Neil S. (Department: 1615)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
C106S690000, C106S691000, C423S308000, C423S311000, C424S484000, C424S601000, C424S602000, C424S606000, C523S113000, C523S115000, C523S116000, C524S414000, C524S436000, C623S016110
Reexamination Certificate
active
07150879
ABSTRACT:
The present invention provides a novel process for producing a calcium phosphate cement or filler which hardens in a temperature dependent fashion in association with an endothermic reaction. In the reaction a limited amount of water is mixed with dry calcium phosphate precursors to produce a hydrated precursor paste. Hardening of the paste occurs rapidly at body temperature an is accompanied by the conversion of one or more of the reactants to poorly crystalline apatitic calcium phosphate. The hardened cements, fillers, growth matrices, orthopedic and delivery devices of the invention are rapidly resorbable and stimulate hard tissue growth and healing.
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Aiolova Maria
Lee Dosuk D.
Rey Christian
Tofighi Aliassghar
Clark & Elbing LLP
Etex Corporation
Levy Neil S.
LandOfFree
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