Researchers at Monash University have created a portable, wireless blood pressure monitoring device that can provide data continuously to patients in the comfort of their home. The device is designed to overcome the disadvantages of traditional cuffed spygmonanometers, and the discomfort and potential hazards of invasive blood pressure monitors.
In a global study led by Associate Professor Mehmet Yuce from Monash University’s Department of Electrical and Computer Systems Engineering, 43 Australian participants trialed a wireless blood pressure monitoring device, developed by the research team, which provided continual readings across a 24-hour period.
Data was recorded during a range of sedentary and physical activities during the participants’ regular day. Results were published in the international journal Nature Scientific Reports.
The familiar method of measuring blood pressure is using the cuffed sphygmomanometer, commonly seen at GP clinics and hospitals. “For close to a century, the health sector has used the cuff device to measure blood pressure. More invasive measures are used to monitor the continuous blood pressure of critically ill patients, which are uncomfortable and could potentially cause infection due to ischemia,” Associate Professor Yuce said.
The Monash researchers used continuous wave radar (CWR) and photoplethysmogram (PPG) sensors to calculate continuous blood pressure measurements. The CWR and PPG sensors were placed on the sternum and left earlobe respectively.