Patent ID: 8440737

Claim:
A composition for preparing an injectable cement comprising a separate mineral solid phase and a separate liquid phase and optionally microparticles of a biocompatible and biodegradable polymer; the mineral solid phase comprising a mixture of powders having the molar composition (CP) 6 (CaO) y (SrCO 3 ) z wherein y+z=4±1 and, in which CP is selected from the group consisting of calcium hydrogenphosphate dihydrate, anhydrous calcium hydrogenphosphate, anhydrous mixed calcium strontium hydrogenphosphate, an equimolar mixture of calcium bis(dihydrogenphosphate)monohydrate and of calcium oxide, and mixtures thereof; the liquid phase being composed of pure pyrogen-free water or of an aqueous saline solution having a pH of 4 to 9; the L/P (volume of liquid phase/weight of mineral solid phase) ratio being at least equal to 0.4 ml/g.