METHOD FOR NUMERICAL DETERMINATION OF STRUCTURAL VIOLATIONS IN SPINAL SECTIONS AND DEVICE FOR ITS IMPLEMENTATION

摘要

FIELD: medicine.SUBSTANCE: group of inventions relates to restorative medicine, diagnosis, vertebrology. Structural changes in the spinal sections are determined by measuring the quantitative parameters of the natural elastic oscillations of the muscular-ligamentous tissues of the spine in response to a powerful impulsive-thrust manual action in this section. At the same time, the elastic oscillations are fixed in the form of oscillograms by two wide-band linear accelerometers, which are installed on the investigated section of the spine in its two sections. Phase velocity of propagation of the longitudinal elastic wave is determined by oscillogram processing, V= L/τ, where L is the distance between the accelerometers, and τ is the phase lag between the peak values of the linear accelerations measured by two accelerometers. Also determine the natural frequency of elastic oscillations and the degree of attenuation of the longitudinal wave along the spine, calculated as the ratio of the maximum amplitudes of the first and second wave oscillations. Moreover, the square of the natural frequency of elastic oscillations is taken as an indicator of the rigidity of the vertebrae in the spine under study, the degree of attenuation of oscillations – as an indicator of elasticity of the tissues surrounding this section of the spine. Phase velocity of propagation of a longitudinal elastic wave along the spine is taken as an indicator of the rigidity of the vertebral discs of this section. Device for implementing the method contains two wide-band linear accelerometers that are connected to the corresponding inputs of the communication device, having the function of analog-to-digital converter, the output of which through the port is connected to a PC.EFFECT: group of inventions allows to establish the degree of violation of the structure of the intervertebral environment in a particular patient.2 cl, 5 dwg