METHOD OF FORMING NANOSTRUCTURED BIOCOMPATIBLE COATING ON IMPLANTS Russian patent published in 2012 - IPC A61L27/30 A61L27/56 A61F2/28 

FIELD: medicine.

SUBSTANCE: invention relates to field of medicine. Described is method of biocompatible coating on implant surface which lies in precipitation on implant surface of polysilicon film in reactor. Obtained polysilicon film is subjected to chemical etching to form nanostructured superficial layer of porous polysilicon. Etching of polysilicon film nis carried out submerging implant into mixture which contains 50-55% water solution of tetrafluoroboric acid (HBF₄), 70-90% water solution of nitric acid (HNO₃) and anionic surface active substance on the basis of ammonium salt of perfluorsulfonic acid R_fSO₃NH₄ in amount 5·10^-3-10^-2 (wt %), where R_f - C₈F₁₇ or C₂F₅OC₃F₆OC₂F₄, or C₆F₁₃CH₂CH₂. Used are water solution of acids with ratio of their volume parts: HBF₄:HNC₃, as (100-800):(1:1.1), with further washing of implant with deionised water and drying.

EFFECT: extension of technological possibilities of the method irrespective of materials used and constructive abilities of implants.

2 cl, 1 dwg, 2 ex