METHOD FOR DEPOSITION OF BIOACTIVE NANO AND MICROSTRUCTURED CALCIUM PHOSPHATE COATING ON TITANIUM AND ALLOY IMPLANTS Russian patent published in 2012 - IPC A61L27/06 B82B3/00 A61L27/32 A61L27/54 A61F2/02 

FIELD: medicine.

SUBSTANCE: invention refers to medicine. What is described is a method for deposition of a bioactive nano and microstructured calcium phosphate coating on a titanium and alloy implants involving anodic oxidation of titanium and alloys with the process performed in phosphoric acid of the concentration of 5-25% and sulphuric acid of the concentration of 5-10% additionally containing CaO powder to achieve a supersaturated condition and 5-10% hydroxylapatite suspension of the dispersion less than 70 mcm in this supersaturated solution supplied by direct or pulse current 80-250 V in a spark discharge environment at pulse repetition frequency 0.3-15.0 Hz for 10-40 min at constant stirring and temperature 20-35°C and additionally placed in a special medium possessing osteogenic and antimicrobial activity for 30-60 minutes at temperature 20-37°C. The coatings are used for the purpose of providing better fixation of introduced implants if standard techniques fail to ensure stable coupling with bone tissue and the presence of an infectious process.

EFFECT: development of the effective method for coating deposition.

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