FIELD: medicine.
SUBSTANCE: invention relates to medicine, specifically to a method of applying an anti-adhesive, biocompatible bactericidal coating on devices and instruments for osteosynthesis, orthopedic implants from metal, including titanium and stainless steel, comprising deposition in a sealed pre-vacuumised chamber onto a pre-cleaned coated device of carbon material and silver included in the coating material, characterized in that the deposited material is evaporated by a pulsed arc discharge formed between the graphite cathode, in form of a cathode made from graphite with silver inserts arranged thereon, forming silver inclusions on the working surface of the graphite cathode, and an anode, wherein pulsed arc discharge is formed with pulse repetition frequency of 1–5 Hz and pulse duration of 200–600 mcs to form cluster plasma flow of carbon plasma in form of compensated non-current plasma primary bunches with density of 5·1012–1·1013 cm-3 and included in this flow of silver atoms, wherein the carbon plasma is stimulated with an inert gas in form of 150–2,000 eV ion flux, which is directed perpendicularly to formed flow of clusters of carbon plasma and silver atoms in vacuum at pressure of 1·10-2–1·10-4 Pa, depositing on the coated devices a biocompatible bactericidal coating in the form of silver atoms in a carbon material, which is a two-dimensionally ordered linear-chain carbon Sp1.
EFFECT: present invention provides obtaining a coating for application on devices and instruments for osteosynthesis, orthopedic implants from metal, including titanium and stainless steel, wherein coating exhibits improved properties of biocompatibility and bactericidal properties.
3 cl, 4 dwg, 6 ex
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Authors
Dates
2019-08-21—Published
2018-12-26—Filed