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THE METHOD OF NON-INAVSIVE ACOUSTIC CONTROL OF SOFT TISSUES FLEXIBILITY AND THE DEIVUCE FOR THE NON-INVASIVE ACOUSTIC CONTROL OF SOFT TISSUES FLEXIBILITY
THE METHOD OF NON-INAVSIVE ACOUSTIC CONTROL OF SOFT TISSUES FLEXIBILITY AND THE DEIVUCE FOR THE NON-INVASIVE ACOUSTIC CONTROL OF SOFT TISSUES FLEXIBILITY
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机译：软组织柔性的非侵入性声学控制方法和软组织柔性的非侵入性声学控制装置
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摘要
The invention provides the noninvasive testing of the elasticity of soft biological tissues for the diagnosing of physiological and pathological state in human and animals, by exciting the tangential oscillatory deformations on the surface of tissue in the frequency range of 0.5 - 30 kHz and by determining the velocity of the excited surface wave propagating along the vector of the initial displacement. The device which provides the application of this method includes a probe with one transmitting and two receiving piezotransducers equipped with contact tips and mounted to the body of the probe by means of the elongated hafts which serve as acoustic delay lines, and the electronic means that forms pulses to excite the transducer, performs the processing of the received acoustic signals, measures the time-of-flight of acoustic pulses from the transmitter to the receiver, converts it into the velocity of sound and displays the value of velocity. The device also has a facility for standardizing the force by which the probe is pressed to a tissue.
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