An Artificial Intelligence-Enhanced Blood Pressure Monitor Wristband Based on Piezoelectric Nanogenerator

Puchuan Tan1,2, Yuan Xi1,2, Shengyu Chao2,3

  • 1Beijing Advanced Innovation Centre for Biomedical Engineering, Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China.

Biosensors
|April 21, 2022
PubMed

Insights

This study introduces an AI-powered wristband for continuous blood pressure monitoring. The device uses piezoelectric sensors and deep learning to accurately predict blood pressure, aiding hypertension management.

Area of Science:

  • Biomedical Engineering
  • Artificial Intelligence
  • Cardiovascular Health

Background:

  • Hypertension affects a significant global population, leading to millions of deaths annually.
  • Current blood pressure measurement methods may lead to misdiagnosis due to temporal variations.
  • Continuous blood pressure monitoring offers a more comprehensive diagnostic reference.

Purpose of the Study:

  • To design and develop an artificial intelligence-enhanced blood pressure monitoring wristband.
  • To enable continuous, long-term blood pressure tracking for improved hypertension diagnosis and management.

Main Methods:

  • Utilized piezoelectric nanogenerators as sensors for blood pressure measurement.
  • Implemented a transformer deep learning model for accurate blood pressure prediction.
  • Achieved a high signal-to-noise ratio of 29.7 dB and a prediction loss below 4 mmHg.

Main Results:

  • Successfully demonstrated three days of continuous blood pressure monitoring in subjects.
  • The AI-enhanced wristband demonstrated high accuracy in predicting blood pressure readings.
  • The developed wristband is lightweight and suitable for prolonged wear.

Conclusions:

  • The AI-enhanced blood pressure monitoring wristband shows significant potential for hypertension prevention and treatment.
  • The technology has broad applications in healthcare, military, and aerospace sectors.
  • Continuous monitoring offers a valuable tool for understanding and managing blood pressure dynamics.

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