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The reduction of the vibratory activity of the roller screw mechanism (RSM) for converting a rotational movement into a translational movement is discussed. A mathematical model of vibratory activity roller screw mechanisms on the basis of elastic compliances was developed. The resulting equation for calculating the natural frequencies of the basic RSM elements – screw, rollers and nut was obtained. It is proved that the RSM has a low vibroactivity that allows you to create mechatronic actuators, the maximum level of vibration does not exceed 60 to 62 dB, which is 11-16 dB below the level of vibratory activity gear mechanisms.

The literature data on the diagnosis and prediction of fatty embolism complicating traumas have been reviewed. The findings of theoretical and clinical research obtained by computer processing of large information mass from relative control systems of data bases have been presented.

There were performed clinical and biochemical investigations of nonnarcotic analgetic tramal application (FRG, Grunenthal) with 196 patients of orthopedic-traumatologic type. The conclusion was drawn that the most effective is tramal application in patients with chronic pains in case of purulent complications and the optimum combination is the coupling of tramal with baralgin and relanium.