Wearable Blood Pressure Monitor: Breakthrough Technology from Seoul National University
A team of Korean researchers from Seoul National University (SNU), led by Professor Seung Hwan Ko, has unveiled a groundbreaking wearable blood pressure monitor that adheres to the skin like a bandage. This innovative device enables real-time, continuous blood pressure (BP) monitoring, offering a game-changing solution for managing hypertension. Unlike traditional cuff-based monitors, this compact, flexible electronic patch provides unmatched convenience and accuracy, making it a significant advancement in wearable health technology.
Why Continuous Blood Pressure Monitoring Matters
Hypertension, often called the “silent killer,” affects approximately 1.3 billion people globally, yet only 21% effectively manage the condition, according to the World Health Organization (WHO). Traditional cuff-based monitors, which rely on inflatable air bladders, are limited to one-time measurements and can be uncomfortable or inaccurate due to improper positioning. The new SNU device addresses these challenges, allowing users to track systolic and diastolic blood pressure seamlessly throughout the day.
Wearable Blood Pressure Monitor: Key Benefits of the Wearable Device
- Non-Invasive Monitoring: Attaches comfortably to the wrist, eliminating the need for bulky cuffs.
- Real-Time Data: Tracks BP fluctuations continuously, aiding early detection of cardiovascular issues.
- Enhanced Comfort: Designed to stretch and adapt to skin movements without compromising performance.
- Smart Healthcare Integration: Potential for use in smartwatches, medical patches, and fitness devices.
How the Wearable Blood Pressure Monitor Works
The SNU team developed this technology by leveraging the time difference between electrical (electrocardiogram) and mechanical (pulse) signals generated by the heart. These signals reach the wrist at varying speeds depending on blood pressure levels. When blood pressure is high, blood flow accelerates, shortening the time gap between signals. Conversely, lower blood pressure results in a longer delay. The device uses this principle to provide accurate, continuous BP readings with each heartbeat.
Wearable Blood Pressure Monitor: Innovative Use of Liquid Metal
Detecting subtle skin changes caused by blood flow is challenging, but the SNU team overcame this with a unique material called liquid metal. This material, which remains liquid at room temperature and conducts electricity, mimics the elasticity of human skin. To address the high surface tension of liquid metal, which complicates precise circuit design, the researchers employed a “laser sintering” process. This technique heats finely dispersed liquid metal particles with a laser, allowing precise circuit creation without additional chemicals.
Exceptional Durability and Performance
The wearable blood pressure monitor has undergone rigorous testing, demonstrating remarkable resilience:
- Stretchability: Maintains functionality when stretched to 700% of its original length.
- Durability: Withstands over 10,000 stretch cycles without performance loss.
- Precision: Accurately measures BP changes during physical activity, outperforming traditional cuff methods.
Wearable Blood Pressure Monitor: Expert Insights on the Innovation
Professor Seung Hwan Ko, a leading expert in wearable soft electronics, emphasized the transformative potential of this technology. “This research challenges the conventional belief that blood pressure measurement is inconvenient and sufficient only once a day,” he stated. “Our system proposes a new healthcare interface capable of detecting and analyzing physiological signals noninvasively and in real time.” The study, published in Advanced Functional Materials (DOI: 10.1002/adfm.202505089), was conducted in collaboration with Carnegie Mellon University, further validating its credibility.
Implications for Smart Healthcare
This wearable blood pressure monitor has far-reaching implications for both individual health management and the broader healthcare industry. By enabling real-time BP tracking, it empowers patients with hypertension to monitor their condition anywhere, anytime, reducing reliance on hospital visits. The device also holds promise for integration into smartwatches, medical patches, and breathable clothing sensors, paving the way for a new era of personalized healthcare.
Wearable Blood Pressure Monitor: Future Developments
Co-first authors Jung Jae Park and Sangwoo Hong are already exploring ways to enhance the device’s functionality. Future iterations may incorporate wireless communication, AI-driven data analysis, and advanced substrate materials to further improve practicality and scalability. These advancements could make the device a cornerstone of smart healthcare, supporting applications in intensive care, workplace safety, and fitness coaching.
Wearable Blood Pressure Monitor: FAQs
What is the new wearable blood pressure monitor from SNU?
It’s a bandage-like electronic patch that continuously monitors blood pressure in real time, offering a non-invasive alternative to cuff-based devices.
How does the SNU wearable device measure blood pressure?
The device analyzes the time difference between electrocardiogram and pulse signals to calculate systolic and diastolic blood pressure with each heartbeat.
Is the wearable blood pressure monitor comfortable to wear?
Yes, it uses liquid metal with skin-like elasticity, ensuring comfort and durability even during extensive stretching or movement.
When will the SNU wearable blood pressure monitor be available?
The device is in the research phase, with plans for global rollout pending further development and testing.
How does this device improve hypertension management?
It enables continuous, real-time BP monitoring, helping detect fluctuations early and supporting personalized health management.
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Disclaimer
This article is for informational purposes only and does not constitute medical advice. Consult a healthcare professional for personalized guidance.
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