FIELD: medicine; nondestructive testing of materials. SUBSTANCE: polarity indicator has drive-pulse generator, ferroprobe pickups with sensitive half-elements arranged in one body, band-pass filters, voltage amplifiers, phase inverters, synchronous detectors, light indicator voltage amplifiers, light indicators, change-over switch, pointer indicator, full- wave rectifier, voltage-controlled frequency generator, and sound indicator. Such design of ferroprobe polarity indicator provides for localization of ferromagnetic foreign objects during uninvasive laparoscopic operations in tissues and organs of man. EFFECT: enhanced efficiency, reduced traumaticity. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FERROPROBE POLARITY INDICATOR | 1996 |
|
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| DEVICE FOR LOCALIZATION OF FOREIGN FERROMAGNETIC BODY IN MAN'S TISSUES AND ORGANS | 1996 |
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