The circuit board for the biosensor. (Credit: Minghan Xian, et al.)

Made of graphene, a cuffless device is worn on the underside of the wrist and can measure blood pressure with comparable accuracy to a standard blood pressure cuff. While the technology is still in its early stages, the researchers envision that the monitor will be worn 24/7.

The application involves placing the device — which is attached to a thin strip of paper — onto the skin, dampening the paper with water, and then gently removing the paper, leaving the blood pressure monitor behind.

The tattoos don’t measure blood pressure directly. Instead, the tattoos rely on bioimpedance — a measure of how the body resists an electrical current. They contain tiny electrodes that apply a small current to an artery in the wrist and then sense how that current is affected by the artery. These bioimpedance measurements can then be converted into blood pressure readings using machine learning.

For more information, visit here  .

Topics:
Anatomy Arm Body regions Diagnosis Digital Health Graphene Measurements Medical Medical, health and wellness Nanomaterials Nanotechnology Patient Monitoring Physical examination Wearables

More From SAE Media Group

Tech Briefs
Artificial “Wrist” Enables Design of Wearable Blood Pressure Monitors
Related Article Image
Medical Design Briefs
Magnetic Angle Sensor
Related Article Image
Medical Design Briefs
BPL Series of Tubing Connectors
Related Article Image
Medical Design Briefs
Tiny Device Swims Through the Bloodstream
Related Article Image
    Magazine cover
    Medical Design Briefs Magazine

    This article first appeared in the March, 2023 issue of Medical Design Briefs Magazine (Vol. 13 No. 3).

    Read more articles from this issue here.

    Read more articles from the archives here.