METHOD OF REMOVAL OF CALCULI FROM THE URETER AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 1996 - IPC

FIELD: medicine and medical equipment for removal of calculi from the ureter. SUBSTANCE: the upper projection urinary tracts of patient with calculi in the ureter are subjected to the effect of low-frequency magnetic field at a frequency of 2-3 kHz, modulated by square pulses at a frequency of 5-6 Hz, magnetic induction being within 1 to 5 mT. The device uses square-pulse generator 1, series- connected amplifier-summator 2, filter 3, radiator 4 installed in casing 5, two dividers 6 and 7, whose inputs are connected to the output of generator 1, and their outputs are connected to the respective inputs of amplifier-summator 2, non-closed magnetic core 8 with winding 9 secured on it and connected via terminal 10 to filter 3 and to the ground of amplifier-summator 2, cover 11 of radiator casing 5. EFFECT: enhanced efficiency. 6 dwg