Patent ID: 8603184

Claim:
A kneadable and moldable bone-replacement material which consists of a mixture of: A) calcium-containing ceramic particles wherein the ceramic particles comprise a calcium to phosphate ratio having a molar Ca/P relationship between 1.0 and 2.0, wherein the calcium phosphate is selected from the following group: dicalcium phosphate dihydrate (CaHPO 4 .2H 2 O); dicalcium-phosphate (CaHPO 4 ); alpha-tricalcium-phosphate (α-Ca 3 (PO 4 ) 2 ); beta-tricalcium-phosphate (β-Ca 3 (PO 4 ) 2 ); calcium-deficient hydro-xylapatite (Ca 9 (PO 4 ) 5 (HPO 4 )OH); hydro-xylapatite (Ca 10 (PO 4 ) 6 OH) 2 ); carbonated apatite (Ca 10 (PO 4 ) 3 (CO 3 ) 3 (OH) 2 ); flourapatic (Ca 10 (PO 4 ) 6 (F, OH) 2 ); chlorapatite (Ca 10 (PO 4 ) 6 (Cl, OH) 2 ); whitlockite; tetracalcium phosphate (Ca 4 (PO 4 ) 2 O); oxyapatite (CA 10 (PO 4 ) 6 O); beta calcium pyrophosphate (β-Ca 2 (P 2 O 7 ); alpha calcium pyrophosphate; gamma calcium pyrophosphate; and octo-calcium-phosphate (Ca 8 H 2 (PO 4 ) 6 .5H 2 O); wherein a bulk density of the ceramic particles is between 0.6 g/cm 3 and 1.0 g/cm 3 ; and wherein an average diameter of the ceramic particles is between 100 and 500μm; and B) a hydrogel, and wherein: C) the ceramic particles are of fully synthetic origin; and D) the majority of the ceramic particles have a non-spheric shape.