DEVICE FOR DETERMINING PRESCRIPTION OF PERSON'S DEATH COMING Russian patent published in 2012 - IPC A61B8/10 A61B3/00 

FIELD: medicine.

SUBSTANCE: invention relates to criminalistics and medicine, namely to forensic medicine. Device for determining prescription of person's death coming by index of vitreous body of eye viscosity depending on time of death coming includes piezoelectric converters with probes, generator of high frequency, two generators of low frequency pulses, mixer, amplifier, converter of outlet signal, unit if information presentation. Mixer is made with possibility to form on outlet signal for excitation of shift superficial waves. For this purpose its first inlet in connected with one of two generators of low frequency via generator of pulse impact, made with possibility to supply low-frequency rectangular pulses, and the second inlet is connected with outlet of generator of high-frequency sinusoidal fluctuations. Simultaneously outlets of low frequency generators are connected with commutator, whose outlet is connected with circuit of calculation permission, connected with metre inlet. First inlet of metre is connected with binary-decimal decoder, whose outlet is connected with inlet of information presentation unit, made in form of liquid crystal indicator. Second outlet of metre is connected with unit of commutation control, by means of which switchings between first and second low frequency generators are realised. Outlet of mixer is connected with first converter of five, which is placed in the centre of contact head and is a source of superficial shift waves, with four other converters, whose outlets are connected with amplifier made in form of summing amplifier, and which are installed on circumference at the same distance from the central one, being receivers of said waves. Amplifier is connected with outlet signal converter, which includes integrator, connected with inlet of Schmidt trigger, whose outlet is connected with inlet of trigger for stopping calculation.

EFFECT: application of invention will make possible to increase sensitivity, noise-resistance of similar means of viscosimetry, as well as make it possible to determine prescription of person's death coming quickly.

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