Research and Realization of Detecting Blood Pressure by Pulse Wave Transit Time Method
ZHANG Ke-gang1a, LI Bei1b, RAO Meng-lin1c, ZHANG Guang2, WANG Dan2, HE Shi-lin1c
1.a.Department of Medical Engineering; b.Department of Emergency; c.Department of Information; Chinese PLA General Hospital
Hainan Branch, Sanya Hainan 572013, China; 2. Institute of Health Equipment, Academy of Military Medical Sciences, Tianjin
300170, China
Abstract：Objective To study and realize the method to detect the blood pressure by pulse wave transmission time (PWTT).
Methods The PWTT was calculated by using the orientation of the electrocardiogram R wave and pulse wave peak. Statistical
analysis was performed on the relationship between the PWTT and human body's blood pressure by using the detection method
combined with the monitor blood pressure collecting a large amount of data. Results The orientation of the electrocardiogram R
wave and pulse wave peak were realized, and the PWTT was calculated. Meanwhile, the blood pressure was estimated based on the
statistical results. The proportion of the error of the estimated value and the measured values in 5 mmHg accounted for 32.54% and
in 10 mmHg accounted for 59.92%. Conclusion The stability of the positioning method still needs to be improved. In addition, the
accuracy of the blood pressure estimation algorithm is not enough, and further studies will be conducted in the future.
张克刚1a，李蓓1b，饶梦琳1c，张广2，王丹2，何史林1c. 脉搏波传导时间法检测血压算法的研究与实现[J]. 中国医疗设备, 2017, 32(8): 8-10.
ZHANG Ke-gang1a, LI Bei1b, RAO Meng-lin1c, ZHANG Guang2, WANG Dan2, HE Shi-lin1c. Research and Realization of Detecting Blood Pressure by Pulse Wave Transit Time Method. China Medical Devices, 2017, 32(8): 8-10.
