Applied to the diagnosis of cardiovascular disease self driving ultra-sensitive pulse sensor

  • 2017-09-12

Recently, a joint research team led by Li Zhou, researcher from Chinese Academy of Sciences Beijing Research Institute of Nano Energy and System and Wang Zhonglin, foreign academician from Chinese Academy of Sciences, together with Fan Yifan, cardiovascular disease expert of Beijing Anzhen Hospital and Sun Guanglong, cardiovascular disease expert of Beijing Chaoyang Hospital, jointly researched and developed the self-driven ultra-sensitive pulse sensor used for early warning and diagnosis of cardiovascular diseases that could achieve Bluetooth transmission without signal amplification. Doctoral candidates Ouyang Han and Tian Jingjing used copper with the nano structure and polymer film as the frictional layer, used flexible material as the encapsulation layer, and produced a pulse sensor with good flexibility and excellent stability.

In the test, this pulse sensor successfully and directly converted the pulse into electrical signal up to 1.52 V, and the signal-to-noise ratio reached 45 dB, which is 10 times of that of a photoelectric pulse sensor, but its price is one-fifth of the latter. This pulse sensor is integrated with the Bluetooth module to realize the wireless transmission of the pulse signal, and it also realizes the visual display and analysis on smart phones and computers. Using this pulse sensor system, the scientists conducted a comparative test of a group of healthy adults and a group of patients, they successfully gave the suggestive diagnosis of arrhythmias (atrial fibrillation) and identifying diagnosis of the coronary heart disease and atrial septal defect.