Lithotripter with a doppler ultrasound unit for hit/miss monitoring

摘要

Lithotriptor (10) for fragmentation of a concrement (18) contained within the human body comprises a shock wave generator, an ultrasound transceiver and a Doppler signaling unit connected to the transceiver, whereby the Doppler signaling unit is designed to determine the time duration of a Doppler signal and hence to determine the duration of a corresponding time duration signal. An Independent claim is made for a method for determining the time duration of a Doppler signal emitted by a Doppler signaling unit used in conjunction with a lithotriptor for determination of the accuracy of focussing of the ultrasound shock wave and for monitoring disintegration of the concrement.