FIELD: technological processes.
SUBSTANCE: invention relates to an antiadhesive, biocompatible and bacteriostatic coating based on carbon application method on metal, polymer and textile products of medical use. Medical device surface is cleaned by ion etching in a sealed chamber method. Chamber is previously evacuated to a residual pressure of 9⋅10-5…1⋅10-6 Torr, followed by filling the chamber with argon and evacuating the chamber to a residual pressure of 1⋅10-4… 2⋅10-3 Torr. Ion etching is carried out with argon ions with an energy of 0.7–3.0 keV for 4–8 minutes. Then, in argon filled and evacuated to a residual pressure of 1⋅10-4…2⋅10-3 Torr chamber the product surface is applied with coating on the basis of carbon in the form of a tetrahedral diamond type ta-C or carbine type by pulsed plasma arc spray with a pulse duration of 0.1–1.0 ms and their frequency of 0.1–30 Hz from the graphite cathode. Applying a carbon coating with a layer thickness of 5–50 angstroms per pulse using a pulsed plasma arc source of a carbon plasma with a discharge voltage of 150–810 V. At that, as the material of the arc source of carbon atoms for pulse-plasma arc spraying graphite of MPG-7, ARV or VC grade is used.
EFFECT: technical result is the production of a high biological compatibility product in various physiological environments of the patient's body, ensuring the prevention of the bacterial biofilm formation on the surface of a medical device, ensuring high anti-adhesiveness and bacteriostaticity of the implanted medical device surface in various physiological environments of the patient's body, as well as ensuring the implanted medical device surface reliable protection against the occurrence of infection processes.
1 cl, 6 ex
