Blood pressure measurement device with korotkoff sounds recognition and playback function, and method thereof

A blood pressure measurement device comprising an air pressure sensor, a piezoelectric sensor and a control module, wherein:

• the air pressure sensor is configured to collect pressure analog signals which is configured to represent air pressure inside an air bladder;
• the piezoelectric sensor is configured to be fixed in a cuff and configured to collect brachial artery pulse signals;
• and
• the control module is configured to obtain the pressure analog signals and the brachial artery pulse signals, recognize the brachial artery pulse signals to obtain Korotkoff sound signals, and obtain Korotkoff sound data according to the Korotkoff sound signals, and the control module being further configured to process the pressure analog signals and the Korotkoff sound signals to obtain blood pressure data which includes air pressure and blood pressure values of a pressure deflation process in the air bladder, the blood pressure values being systolic pressure and diastolic pressure,
• the control module being further configured to respond to a playback operation to perform synchronous playback of the Korotkoff sounds and the air pressure, and display the systolic pressure and the diastolic pressure,
• wherein the air pressure sensor and the piezoelectric sensor are respectively connected with the control module for communication.

A blood pressure measuring method, wherein the method comprises:

• obtaining pressure analog signals and brachial artery pulse signals;
• recognizing the brachial artery pulse signals to obtain Korotkoff sound signals, and obtaining Korotkoff sound data according to the Korotkoff sound signals;
• processing the pressure analog signals and the Korotkoff sound signals to obtain blood pressure data which comprises air pressure of an air bladder pressure deflation process and blood pressure values, wherein the blood pressure values are systolic pressure and diastolic pressure;
• and
• in response to a playback operation, performing synchronous playback of Korotkoff sounds and air pressure according to the Korotkoff sound data and the air pressure data, and displaying the systolic pressure and the diastolic pressure.