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:
Feb. 01, 2005
Filed:
Jan. 10, 2003
Applicant:
Paul Higham, Ringwood, NJ (US);
Inventor:
Paul Higham, Ringwood, NJ (US);
Assignee:
Howmedica Osteonics Corp., Mahwah, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 3342 ; A61K 914 ; A61K 4700 ; C01B 2500 ; C04B 1202 ;
U.S. Cl.
CPC ...
Abstract
A method for controlling the formation of a hydroxyapatite bone filler from dry calcium phosphate precursors in an aqueous solution uses coated sodium phosphate powder. The sodium phosphate powder is coated with a water soluble cellulose. Until the cellulose dissolves in the aqueous solution setting of the calcium phosphate cements proceeds slowly but when the exposed sodium phosphate particles start to solubilize in the aqueous solution the setting rate increases.