METHOD FOR DETECTING BREAST NEW GROWTHS, AND MAMMOGRAPHY DEVICE Russian patent published in 2016 - IPC A61B5/53 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely devices for detecting female's breast new growths. The method consists in the fact that four metal electrodes regularly spaced on a rigid dielectric base plate around the circumference, the length of which does not exceed a breast circumference, at a pre-set height from the breast base, are applied to the breast. A basic cycle of measurements is performed by passing the measurement current twice through a pair of the polar opposite current electrodes with neutralising each of these electrodes in turn, and measuring at the same time a potential different of the potential electrodes arranged along the line orthogonal with the mounting line of the current electrodes; the measured potential different is stored as relevant to two quadrants of a breast projection on a chest plant, adjoining the neutralised current electrode. The two potential differences derives are compared in absolute magnitude; if a difference of their absolute values exceeds a pre-set threshold, the patient appears to be diagnosed with a breast new growth; the two quadrants having a greater absolute measured potential difference are considered as a new growth localisation. An electrical impedance mammography device comprises a replaceable electrode unit in the form of a dielectric hemisphere, an inner surface of which bears at least four equally spaced flat metal electrodes around the circumference; each of the electrodes is provided with a separate electrical lead; they are divided in at least two groups, each of which is formed by two polar opposite electrodes and connected to a controlled multiplexer-demultiplexer of an electronic unit built in a handle. The multiplexer-demultiplexer is connected through a voltage meter and analogue-to-digital converter to a microprocessor connected to an indicator unit, and to a controlled measurement current generator.

EFFECT: using the invention enables to extend the range of devices for detecting breast new growths.

8 cl, 8 dwg