The invention relates to a portable
wireless electrocardiogram, cardiac sound and
breath sound acquisition, display and storage device which comprises a cardiac sound /
breath sound sensor, a first low-
noise amplifier, a second low-
noise amplifier, a
signal conditioning circuit, an electrocardiogram sensor, a low and
high pass filter, an A / D (Analog to Digital) converter, a CPU (
Central Processing Unit) processor, a keyboard, a
wireless transmitting / receiving module and an LED indicator light, wherein the cardiac sound /
breath sound sensor is connected with the
signal conditioning circuit through the first low-
noise amplifier and then connected with the CUP processor through the A / D converter; the electrocardiogram sensor is connected with the low and
high pass filter through the second low-noise amplifier and then connected with the CPU processor through the A / D converter; and the CPU processor is used for carrying out
wireless transmission of signals through the wireless transmitting / receiving module. The device has the characteristics of synchronously acquiring physiological parameter data such as electrocardiograms, cardiac sound, breath sound, and the like of a
human body and transmitting the data to a display and storage
machine in real time through the wireless transmitting / receiving module, displaying and storing or replaying the electrocardiograms and frequency spectrograms of the cardiac sound and the breath sound and playing the cardiac sound and the breath sound, and providing more visual
diagnostic data for doctors; and the device can provide quick diagnosis information of common diseases such as arrhythmia, structural heart diseases,
lung diseases, and the like.