Chitosan bead containing tricalcium phosphate for bone substitute

摘要

PURPOSE: Provided is a keto acid bead for alternative bones with tricalcium phosphate included which transmits growth of new bones into a gap between beads in transplanting into a bone damage part so that it improves bone-regeneration effect. CONSTITUTION: The keto acid bead for the alternative bones with tricalcium phosphate included is characterized by including 0.1-0.8wt% of tricalcium phosphate on a basis of the weight of keto acid desirably and including 0.2-0.7wt% of tricalcium phosphate more desirably. The size of the beads is 300-1200micrometer desirably and more desirably, that of the beads is 400-800micrometer.