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Ultra-low-cost Mechanical Smartphone Attachment for No-Calibration Blood Pressure Measurement
Yinan Xuan1, Colin Barry1, Jessica De Souza1
1Electrical and Computer Engineering Department, UC San Diego, 9500 Gilman Dr., La Jolla, 92093, CA, USA.
Research Square
|March 13, 2023
Summary
We developed BPClip, an affordable blood pressure monitor using a smartphone camera and flash. This innovative device measures systolic, mean, and diastolic blood pressure without requiring user calibration or special phone sensors.
Area of Science:
- Biomedical Engineering
- Medical Devices
- Mobile Health (mHealth)
Background:
- Accurate blood pressure monitoring is crucial for cardiovascular health management.
- Existing methods often require expensive, specialized equipment or frequent calibration.
- There is a need for accessible, low-cost blood pressure measurement solutions.
Approach:
- Introducing BPClip, a novel, low-cost ($1 USD) blood pressure monitor utilizing a smartphone's camera and LED flash.
- The device employs a spring-loaded plastic clip mechanism for oscillometric measurements.
- It enables blood pressure assessment on any standard smartphone without custom sensors.
Key Points:
- BPClip successfully measures systolic, mean, and diastolic blood pressure.
- The system avoids the need for per-user calibration, simplifying usage.
- It is compatible with a wide range of smartphones, enhancing accessibility.
Conclusions:
- BPClip offers a cost-effective and accessible solution for blood pressure monitoring.
- This technology has the potential to significantly improve remote patient monitoring and self-health management.
- Further research can explore integration into broader mHealth platforms.
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