V.B. Baiburin1, V.P. Meschanov2, I.O. Luneva3, V.V. Komarov4, A.A. Nikiforov5, A.A. Fomin6, V.M. Doroshenko7, M.I. Balakin8, V.A. Kirkitsa9

1,4–7, 9 Yuri Gagarin State Technical University of Saratov (Saratov, Russia)
2 JSC NPP «NIKA-SVCH» (Saratov, Russia)
3 Saratov State Medical University named by V.I. Razumovskiy (Saratov, Russia)
8 JSC NPP Almaz (Saratov, Russia)
1 baiburinvb@rambler.ru, 2 nika373@bk.ru, 4 vyacheslav.komarov@gmail.com, 5 ieei_director@mail.ru,
6 fominaa@sstu.ru, 7 dorvalentina9@gmail.com, 8 balakinmaxim@gmail.com, 9SKrkts@mail.ru

The possibility of using electromagnetic radiation of microwave frequencies for the disinfection of metal instruments for various purposes is an important direction, both from a scientific and practical point of view. Special attention is paid to the process of sterilization of medical instruments as an important stage in the provision of medical care. The priority direction in this problem is the creation of a compact small size sterilizer. This significantly increases the scope of the device and allows it to be used not only in medical hospitals (hospitals, clinics, hospitals), but also in mobile first aid stations, feldsher-obstetric stations in rural areas and in the field. Most of the currently known methods of sterilization are based on the principles of thermal action, as a result of which they require a rather long treatment period (at least an hour). Such installations are not mobile, they are large in size and weight. The process of thermal sterilization itself requires a multi-stage preparation of instruments before they are directly placed in a sterilization unit, which in turn also complicates the technical process of the disinfection procedure.The results of experiments showing the possibility of complete sterilization of medical instruments by microwave processing are presented. The key parameters influencing the sterilization process (time, the composition of the solution in which the instruments were immersed, the power of the microwave emitter, the way the instruments were positioned, the liquid level in the treatment cuvette) were considered.

For the first time in research on instrument sterilization, the roughness parameters of instruments were measured before and after treatment. The arithmetic mean deviation of the profile (Ra), the average width of the profile elements (Rs) and the total height of the roughness profile (Rt) were obtained. Also, as part of the assessment of the influence of microwave radiation on the processed objects, an assessment of temperature indicators during processing was carried out. The results obtained prove the possibility of using sterilization units corresponding to the objectives of the work. A number of experiments have been carried out confirming the effectiveness of the claimed method, which allows us to speak about the possibility of introducing the method of microwave sterilization of medical instruments in real conditions, and also proves the viability of the described method.

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