A MEDICAL STRENGTHENED-TYPE POROUS BIOCERAMICS, ITS PREPARATION METHOD AND APPLICATION

摘要

A medical strengthened-type porous bioceramics, its preparation method and application are disclosed. The bioceramics contains two portions of porous structure and dense structure. The dense structure portion is mainly used to increase mechanical strength, and the porous structure portion mainly has the action of allowing cell and tissue ingrowth and making newly-grown tissue have correspondent function. A pore shape, porosity, pore size and size of interior connection can be adjusted according to types of the cell and tissue and requirements of growth; the dense portion can increase the strength up to 2-20 times higher than that of pure porous bioceramics depending on its addition amount. Its preparation method includes slip-casting process, stamping process and slip-casting & stamping process, and a center-, edge- and dispersion-type porous bioceramics can be achieved. Also, the bioceramics having a shape, size, mechanical strength and function which is matched with a human bone to be restored can be obtained.