| 摘要 |
PURPOSE:Inorganic fibers, having a specific (Ca/P) molar ratio and the content of (CaO+P2O5) in a specific range, having improved biocompatibility, capable of uniting with the hard tissue in the living body in a short time without causing foreign body reactions, and suitable for fillers in lost parts of bones and gaps. CONSTITUTION:A raw material of phosphorus and calcium, e.g. calcium tetraphosphate, hydroxyapatite, quick lime or ammonium tertiary phosphate, is mixed with animal bones, kaolin, etc., at 0.3-4.0 (Ca/P) molar ratio and 80-15wt% (CaO+P2O5) content, and the resultant mixture is then melt spun to give the aimed fibers. Preferably, the resultant fibers are treated with an aqueous solution, e.g. diammonium hydrogenphosphate, to deposit the calcium phosphate compound on the fibrous surfaces. EFFECT:Very easily adapted to lost parts of bones in a complicated shape. |
