METHOD AND DEVICE FOR TREE-DIMENSIONAL ECHOTOMOSCOPY Russian patent published in 2000 - IPC

FIELD: medical equipment for keinvasive examinations of stereoscopic structure of human internal organs. SUBSTANCE: an ultrasonic transducer, consisting of elementary groups of quadruple radiators-receivers consisting of piezoelectric elements with linear dimensions considerably exceeding the wavelength of the radiated ultrasonic pulse, is applied to the patient's skin. Reflected echo signal is picked off and a three-dimensional image is formed. Outgoing pulses are generated with a phase shift and dynamic focusing in distant time for scanning between the focal axes of the quadruple radiators-receivers coinciding with the main lobe of the directional pattern of the radiators-receivers and serving as data pickup lines. For observation of the obtained stereopicture use is made of special goggles. The device has also a computer with an interface connected to multiplexers, commutator, transmitters, analog-to-digital converter, amplifiers, internal storage and a computer. EFFECT: three-dimensional location of biostructure, visualization of its stereoscopic picture on a video terminal of a standard computer. 2 cl, 4 dwg