Combined stethoscopic and Doppler detection device for early screening and diagnosis of cardiovascular diseases has ear trumpet assembly incorporating an ultrasound probe from which is generated both stethoscopic and video signals

摘要

Apparatus comprises a sound transmitting conduit (3) connected at one end to a housing (100) forming an ear trumpet (1') provided with a membrane (2'). The other end of the conduit has an earphone for listening to a stethoscopic signal from the trumpet. The housing also contains an ultrasound probe (8) that enables convergence of the reception of ultrasonic and stethoscopic signals. The probe is connected to a transducer processing circuit (37) that delivers an audio signal derived from a Doppler signal and a video signal. To generate an audio signal the processing circuit is coupled to a loudspeaker (34) in contact with the ear trumpet for stethoscopic type listening, while a video signal is generated by inputting the Doppler signal to the processing circuit, which is then coupled to display means (39) for output of a video signal.