ULTRTASONIC TOMOGRAPH Russian patent published in 2014 - IPC A61B8/13 G01N29/26 H04R17/00 

FIELD: medicine.

SUBSTANCE: invention relates to the field of medical diagnostics and is aimed at the creation of an ultrasonic nonlinear tomograph, which contains a small quantity of receiving and transmitting transformers, mainly for mammography, defectoscopy and nondestructive testing of different objects. The ultrasonic tomorgaph includes a receiving-emitting device with receiving-emitting piezotransformers, to an inlet of which connected is a channel of the emitted signal formation, and to an outlet - a channel of the received signal analysis. The receiving-emitting device contains, at least, two emitting cylindrical piezotransformers with a broad band of emitted coded signals and, at least, one receiving cylindrical piezotrasformer with a broad band of the received signal, a longitudinal axis of which is located vertically, and a system of acoustic mirrors, which includes vertically located above each other lower smaller acoustic mirrors and an upper larger acoustic mirror, made in the form of coaxial truncated cones with an equal angle of conicity and height and a different mean radius. The emitting and accepting piezotransformers are placed at the level of the lower smaller acoustic mirror, and their height constitutes 0.8÷0.9 of the height of each of the acoustic mirrors.

EFFECT: application of the invention makes it possible to increase the resolving capacity of restoring an image of internal soft structures with the reduction of a quantity of the transformers.

4 cl, 3 dwg