For people with conditions such as high blood pressure, it will certainly help to keep up their blood pressure,media New Atlas reported. And now Australian scientists have devised a new non-invasive wearable system. Currently, standard methods for measuring blood pressure include the use of an arm blood pressure monitor. Although it is very accurate, it cannot be worn all day because the patient needs to perform other daily tasks. It also provides only individual readings, not continuous readings. Taking these limitations into account, scientists at Monash University in Australia have developed experimental new wireless settings based on previous research.
Instead of the cuffs, the new device combines a small continuous wave radar (CWR) sensor fixed to the sternum and a photoelectric volume tracing device (PPG) clamped on the left earlobe. THE PPG SENSOR (USUALLY IN THE FORM OF A PULSE OXIMETER) DETECTS CHANGES IN BLOOD VOLUME BY EMITTING LIGHT AND THEN ANALYZES HOW MUCH LIGHT THE PATIENT’S BIOLOGICAL TISSUE ABSORBS.
Using its two sensors, the new system is able to measure the time before the blood shot and the pulse propagation time. Based on this information, the system is able to read patients’ blood pressure in real time, no matter where they are or what they are doing.
In laboratory tests, 43 healthy volunteers between the ages of 40 and 65 were sitting. While lying and riding a sporty bike, you wear an experimental device and a traditional arm-style blood pressure meter. Compared to an arm blood pressure meter, the new system measured 93% of the participants’ blood pressure during rest and 83% during exercise. These numbers are likely to improve as technology evolves further.
“Clinicians are still unable to continuously measure blood pressure during sleep or during activities such as walking or running,” said Principal Scientist and Associate Professor Mehmet Yuce. This means that people with high, low or irregular blood pressure do not have access to critical information about the health conditions they need around the clock. Wearables can provide comfort and portability in people’s daily lives, which will be a major development for the Australian and international health sectors. “
The paper on the study was recently published in the journal Scientific Reports.