Doppler signal generator for Doppler sonography using probe - has unit for prodn. and reception of pulsed Doppler signal and unit for prodn. and reception of continuous Doppler signal also changeover switch

摘要

The changeover switch (4) changes over the probe from the first unit (2) on to the second unit (3) and vice versa. The changeover switch is remotely operated. The doctor can change from an operation using a pulsed Doppler signal to the unit using a continuous Doppler signal, unnoticed by the patient and can compare the results with each other or with results previously obtained. ADVANTAGE - Prevents difficulties experienced with single unit having changeover facility and two machines of different modes. So that time can be saved and allows more all embracing ultrasonic diagnosis.