1. The use of silicone oil-treated plasma as a coating (5) in a medical injection device (1) comprising a cylinder (2) and the piston (3) in sliding engagement within the cylinder (2) for limiting the number of particles on the surface coating (5) and to limit the number of particles released into the pharmaceutical composition (6) contained in an injection device (1) .2. Use according to claim. 1 to increase the sliding friction force of the piston (3) inside the cylinder (2) as compared with the medical injection device having a silicone coating not treated plazmoy.3. Use according to claim. 1, where the cylinder (2) is made of stekla.4. Use according to claim. 1, where the silicone oil consists of polydimethylsiloxane (PDMS), viscosity from 900 to 1200 centistokes, preferably a viscosity of 1000 santistoksov.5 polydimethylsiloxane. Use according to Claim. 1, wherein the weight of the coating (5) is from 0.1 to 0.4 mg.6. The medical injection device comprising: a cylinder having an inner surface the piston in sliding engagement with the cylinder ifarmatsevticheskuyu composition within the medical injection device and in contact with the inner surface of the cylinder, where the inner surface of the cylinder comprises a coating of silicone oil-treated plasma in contact with the composition, where the processing of the silicone plasma oil reduces the number of particles on the surface of the coating, and the number of particles, released in the pharmaceutical composition contained in the medical injection device, as compared with silicone oil not treated plazmoy.7. The medical injection device according to claim. 6, where the level of particles, releasing1. Применение силиконового масла, обработанного плазмой, в качестве покрытия (5) в медицинском инъекционном устройстве (1), включающем цилиндр (2) и поршень (3) в скользящем зацеплении внутри цилиндра (2), для ограничения числа частиц, находящихся на поверхности покрытия (5), и для ограничения числа частиц, высвобожд
