Calcium phosphate composition and method of preparing same

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...

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Bibliographic Details
Main Author HIGHAM PAUL
Format Patent
LanguageEnglish
Published 01.02.2005
Edition7
Subjects
BANDAGES, DRESSINGS OR ABSORBENT PADS
CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
DISINFECTION, STERILISATION, OR DEODORISATION OF AIR
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES
MEDICAL OR VETERINARY SCIENCE
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
PROSTHESES
TREATMENT OR PROTECTION OF EYES OR EARS
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Summary: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.
Bibliography:Application Number: US20030340442