POROUS CALCIUM PHOSPHATE CEMENT

A kit and a method for making a porous cement which self sets to hydroxyapatite and has an interconnected porosity is produced by mixing a calcium source and a phosphate source with a carbona te source and mixing this powdered component with a liquid component having an acid component. The liquid co...

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Bibliographic Details
Main Authors ZITELLI, JOSEPH, HIGHAM, PAUL, EDWARDS, BRIAN
Format Patent
LanguageEnglish
French
Published 11.12.2007
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
DISINFECTION, STERILISATION, OR DEODORISATION OF AIR
HUMAN NECESSITIES
HYGIENE
LIME, MAGNESIA
MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES
MEDICAL OR VETERINARY SCIENCE
METALLURGY
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:A kit and a method for making a porous cement which self sets to hydroxyapatite and has an interconnected porosity is produced by mixing a calcium source and a phosphate source with a carbona te source and mixing this powdered component with a liquid component having an acid component. The liquid component comprises water on an aqueous solution containing an acid. The acid and the carbonate react to form carbon dioxide thereby producing an interconnected porosity in the normally solid self-hardening bone cement. The method requires only a relatively low weight percent of the acid and base to be mixed with the liquid and powder cement components.
Bibliography:Application Number: CA20012394100