The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2006
Filed:
May. 11, 2000
Dosuk D. Lee, Brookline, MA (US);
Christian Rey, Castanet, FR;
Maria Aiolova, Brookline, MA (US);
Aliassghar Tofighi, Belmont, MA (US);
Dosuk D. Lee, Brookline, MA (US);
Christian Rey, Castanet, FR;
Maria Aiolova, Brookline, MA (US);
Aliassghar Tofighi, Belmont, MA (US);
Etex Corporation, Cambridge, MA (US);
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.