Auscultation device and auscultation method using auscultation device

An auscultation device, comprising:

• an electrocardiogram (ECG) device, configured to receive an ECG signal;
• a sound receiver device, configured to receive a heart sound signal, wherein the sound receiver device comprises a microphone;
• a synchronization device, configured to transmit a synchronization signal to the ECG device and the sound receiver device, so that the ECG device starts to receive the ECG signal and the sound receiver device starts to receive the heart sound signal in time synchronization, wherein the synchronization device comprises an oscillator;
• and
• a processor, configured to generate an ECG according to the ECG signal, generate a heart sound diagram according to the heart sound signal, and generate a synchronization timing diagram according to the ECG and the heart sound diagram;
• wherein the processor calculates a first time difference between an ECG feature point of a first synchronization period and a heart sound diagram feature point of the first synchronization period according to the synchronization timing diagram, and calculates a second time difference between the ECG feature point of a second synchronization period and the heart sound diagram feature point of the second synchronization period;
• wherein the processor determines that a measurement result is abnormal when a time gap between the first time difference and the second time difference is greater than a time threshold.