Monitoring Blood Pressure with Wearable Technology
Researchers have developed a compact, wearable device that can be attached to the skin to monitor blood pressure and blood oxygen levels.
The commonly used cuffed tonometer is inconvenient and makes continuous pressure monitoring very difficult. However, a team of scientists from Tsinghua University has presented a new measurement method based on optical principles..
To do this, they created a compact device in the form of a thin and soft strip of biocompatible materials with a skin-like structure. Once the patch is attached to the surface of the body, an integrated optoelectronic system measures how the blood absorbs light at different wavelengths. This information allows you to determine the volume of blood and the speed of its movement, as well as calculate the pressure and oxygen content in it.
The device can be attached to the wrist and thanks to the built-in chip, the collected data will be transmitted in real time wirelessly to a smartphone or other digital terminal. The system can be used on the move as it recognizes and filters third-party noise interference.
Clinical trials have shown that such an optoelectronic tonometer measures blood pressure with an error of less than 10 mm Hg. Art., which may correspond to the standard of medical monitoring.
We’ve also previously reported on other technologies that are digitizing healthcare..
text: Ilya Bauer, photo: core77