A new approach for non-intrusive monitoring of blood pressure on a toilet seat.
Pulse arrival time (PAT) was measured non-intrusively to estimate each individual's blood pressure. Electrocardiogram (ECG) was measured with copper-coated electrodes and photoplethysmogram (PPG) was measured using a specially designed toilet seat apparatus. Non-intrusively measured PATs were compared with PATs measured by the standard method, and the results showed a good correlation. An equation was used to estimate blood pressure from the measured PAT during a training period for each individual. Estimated blood pressures were compared with measured blood pressures in a series of blood pressure varying experiments. For each individual, the estimated blood pressure was similar to the measured blood pressure within a tolerable error range. This method was also practiced for long-term monitoring, and the results show the value of this method for continuous home monitoring of blood pressure.
Kim
Jung Soo
JS
Interdisciplinary Program in Biomedical Engineering, Seoul National University, Seoul, Korea. acamus@bmsil.snu.ac.kr
Chee
Young Joon
YJ
Park
Ju Wan
JW
Choi
Jin Wook
JW
Park
Kwang Suk
KS
D000328:Adult; D001794:Blood Pressure / Q000502:physiology; D018660:Blood Pressure Monitoring, Ambulatory / Q000379:methods*; D015924:Blood Pressure Monitors; D004562:Electrocardiography; D005263:Femoral Artery / Q000502:physiology; D006801:Humans; D008297:Male; D017156:Photoplethysmography