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

摘要

PCT No. PCT/FR86/00335 Sec. 371 Date May 27, 1987 Sec. 102(e) Date May 27, 1987 PCT Filed Sep. 29, 1986 PCT Pub. No. WO87/01927 PCT Pub. Date Apr. 9, 1987.The disclosure relates to apparatus for localizing the fragments of stones associated to a lithotrite comprising a spherical focussing cup acting as a power transducer and an auxiliary transducer subjected to a sectorial scanning and mounted at the center of the cup and coupled to an echography device. The apparatus comprises an auxiliary generator for exciting the power transducer with pulses generated at a frequency of a few hertz and at a power reduced with respect to that of the shootings. During the emission of the pulses with reduced power, the receiver of the echographic device is connected to an auxiliary cathode tube which forms an A echography image in order to localize the fragments of stones.