Patent ID: 9642939
Date: 2017-05-09
CPC Classifications: A61L

Claim:
1. An injectable calcium phosphate cement comprising one or more calcium phosphate compounds, microparticles of hydroxypropylmethylcellulose (HPMC) with a diameter between 20 and 300 μm, and an aqueous solution of Na 2 HPO 4 ; wherein the one or more calcium phosphate compounds comprises at least 70 % of an α-tricalcium phosphate (α-TCP); and wherein the calcium phosphate cement is made by forming a power mixture comprising the one or more calcium phosphate compounds, the HPMC in an amount of about 1% to about 3% by weight of the total amount of the cement powder, and the α-TCP and then mixing the resulting powder mixture with the aqueous solution of Na2HPO4 to form the injectable calcium phosphate cement.