METHOD FOR INTRODUCTION OF SINTERING ADDITIVE BASED ON TRIPLE CALCIUM, POTASSIUM, AND SODIUM CARBONATE Russian patent published in 2023 - IPC A61L27/02 A61F2/28 C04B35/00 C04B35/447 C04B35/65 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely to the production of porous calcium-phosphate ceramics. A method for introduction of components of a sintering additive based on triple calcium, potassium, and sodium carbonate in the form of solutions is proposed. The additive amounts to 5-10% of slurry for ceramics sintering at a temperature of 850-900°C. The additive is sequentially introduced in a charge in the form of 20% solutions of calcium, potassium, and sodium salts. Then, drying is carried out at the ratio of calcium nitrate or acetate to double potassium-sodium carbonate of: 32.60 wt.% and 67.40 wt.%, respectively. The use of the invention is possible in medicine in the production of ceramics for the treatment of damaged bone tissue.

EFFECT: obtainment of porous calcium-phosphate ceramics with porosity of more than 50% and bending strength of 30 MPa.

1 cl, 2 ex