A PROCESS FOR THE PRODUCTION OF POROUS CALCIUM PHOSPHATE ARTICLES FOR BONE REGENERATION AND AS A SUPPORT FOR CELLS AND THE POROUS ARTICLES THEMSELVES

摘要

A process for the production of a porous article comprises the following steps: preparation of a ceramic slip using calcium phosphate powder and a deflocculating agent in a liquid; modification of the surface activity of the slip in the presence of air or inert gas so as to make the slip porous; the air or inert gas used to make the slip porous consists of a fixed predetermined volume, guaranteeing the exact quantity of air or inert gas incorporated in the slip; casting of the slip obtained in this way in a microporous mould; drying of the slip cast in the microporous mould; sintering of the article in order to consolidate the structure obtained. The invention also relates to the porous articles obtained in this way.