Patent ID: 7459170

Claim:
A bone replacement material with orthophosphate, wherein a) according to 31 P-NMR measurements, said bone replacement material comprises Q 0 -groups of orthophosphate and Q 1 -groups of diphosphate, the orthophosphates or Q 0 -groups making up 65 to 99.9% by weight relative to the total phosphorus content of the finished material and the diphosphates or Q 1 -groups making up 0.1 to 35% by weight relative to the total phosphorus content of the finished material, and b) according to X-ray diffractometric measurements and relative to the total weight of the finished material, 35 to 99.9% by weight of a main crystal phase consisting of Ca 10 Na(PO 4 ) 7 , Ca 10 K(PO 4 ) 7 , mixtures thereof or mixed crystals according to the general formula Ca 10 K x Na 1−x (PO 4 ) 7 , where x=0 to 1, is contained in the bone replacement material and 0.1 to 25% by weight of a substance selected from the group consisting of Na 2 CaP 2 O 7 , K 2 CaP 2 O 7 , Ca 2 P 2 O 7 and mixtures thereof is contained as a secondary crystal phase, and c) the X-ray amorphous phases contained besides the main crystal phase jointly make up 0.1 to 65% by weight relative to the total weight of the finished material.