LOCALIZATION METHOD AND DEVICE ENABLING TO APPRECIATE DURING A LITHOTRITY THE DEGREE OF FRAGMENTATION OF STONES

摘要

An apparatus for identifying fragments of calculations associated with a lithotriptor comprising a spherical cup focusing (1) playing the power transducer part and an auxiliary transducer (2) subjected to a sector scan, mounted in the center of said cup and coupled to an ultrasound device (21-22-28). The apparatus includes an auxiliary generator (360) excitation of the power transducer (1) in pulses at a rate of a few Hz and a power reduced relative to that of the firing. The receiver (22) of the ultrasound device is, during the transmission of these pulses at reduced power, connected to an auxiliary cathode ray tube (45) which forms an image by ultrasound to identify fragments calculations.