METHOD AND DEVICE FOR DETERMINING THE CARDIOVASCULARY CHARACTERISTICS BY EXTERNAL PROCESS AND APPLICATION THEREOF TO CARDIOPATHIES

摘要

Device comprising a transducer (1) for emission at the manubrium ultrasonic burst at regular time intervals and for the reception of the Doppler echo of a cross section from the ascending aorta, a digital analog converter Doppler signals, two buffers (12, 13) connected to the converter (11) and alternately receiving a number of image points of the Doppler signal, a computer (14) successively treating the illustrative data points stored in the buffers for forming a spectrum of amplitudes and frequencies corresponding to significant points stored in each of the buffer memories, a memory (15) for storing the values ​​of the amplitudes and frequency characteristics of the spectrum and a computer (16) connected to said memory (15) for performing display and calculates the (I), illustrating each systole in time.