Patent ID: 6840995

Claim:
A process for producing a fast-setting, bioresorbable calcium phosphate cement, comprising the following steps: (a) obtaining a calcium phosphate powder comprising at least one calcium phosphate selected from the group consisting of Ca 4 (PO 4 ) 2 O, CaHPO 4 .2H 2 O, CaHPO 4 , Ca 8 H 2 (PO 4 ) 6 .5H 2 O, alpha-Ca 3 (PO 4 ) 2 , beta-Ca 3 (PO 4 ) 2 , Ca 2 P 2 O 7 , Ca 2 H 2 P 2 O 8 , wherein the molar ratio of Ca to P in said calcium phosphate powder is between about 0.5 and 2.5; (b) mixing said calcium phosphate powder obtained from step (a) with a wetting solution to obtain a powder/solution mixture in a ratio of less than about 10 g powder per ml solution; (c) heating the powder/solution mixture resulting from step (b) to a temperature greater than room temperature up to about 1000° C.; and (d) mixing the resulting dried powder from step (c) in a setting solution to obtain the fast-setting, bioresorbable calcium phosphate cement.