METHOD FOR MAKING BIODEGRADABLE CERAMIC COMPOSITE OF DOUBLE POTASSIUM CALCIUM PHOSPHATE Russian patent published in 2010 - IPC A61L27/12 A61L31/02 A61F2/02 A61F2/28 

FIELD: medicine.

SUBSTANCE: there is described a method for making a biodegradable ceramic composite of double potassium calcium phosphate that involves preparation of a initial powder containing calcium phosphate with the ratio Ca/P=1 and potassium salt; extrusion and burning, wherein according to the invention, the initial powder is formed by the reaction at pH 5.5-6.0 of aqueous solutions of calcium acetate and potassium hydrophosphate concentrated within 0.6-0.8 M. The powder after the synthesis represents mixed calcium-deficient hydroxyapatite, brushite and acid potassium acetate.

EFFECT: use of said mixture after burning allows making the biodegradable ceramic composite exhibiting the uniform microstructure with the size of grains 2-4 mcm, of double potassium calcium phosphate Ca₁₀K(PO₄)₇, containing TCP phase.

3 cl, 1 tbl, 2 dwg, 1 ex