1. A method of treating the surface of a medical device, in particular a metallic medical device, comprising the steps of: obtaining a colloidal dispersed system, subjecting the medical device to a colloidal dispersed system so that the surface of the medical device to be treated is immersed into a colloidal dispersed system, create a potential difference of the alternating current circuit between the medical device as the first electrode and / or the second electrode placed in an olloid-dispersed system for converting an immersed surface into an oxide film by plasma electrolytic oxidation, the transformed surface being partially covered by islands formed by colloidal dispersed particles of the colloidal dispersed system, the AC voltage being supplied as an asymmetric AC voltage and / or as a sinusoidal AC voltage 2. The method according to claim 1, in which the ratio obtained by dividing the positive amplitude by the negative amplitude is adjusted to an absolute value in the range from>； 1 to 4.3. The method of claim 1, wherein the colloidal dispersed system is a water based dispersion. The method according to claim 1, in which at least one electrolyte, in particular, which is at least one of the components of the material of the medical device, is provided in a colloidal dispersed system. The method according to claim 1, wherein the deposition rate is from 0.01 μm / s to 1 μm / s. The method according to claim 1, wherein the deposition time is from 1 to 1200 s. Way1. Способ обработки поверхности медицинского изделия, в частности,металлического медицинского изделия, включающий в себя стадии, на которых:получают коллоидно-диспергированную систему,подвергают медицинское изделие обработке коллоидно-диспергированной системой таким образом, что поверхность медицинского изделия, которое подлежит обработке, погружают в коллоидно-диспергированную систему,создают разность потенциалов цепи переменного тока между медицинским изделием в качестве первого электрода и/или вторы
