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Towards a Wearable Optical Interrogator for Transcutaneous Blood Pressure Measurement via an Implanted Fiber Bragg
Continuous at-home blood pressure monitoring is now possible using a new wearable optical interrogator and an implanted fiber Bragg Grating (FBG) sensor. This technology offers a convenient solution for managing hypertension.
Area of Science:
- Biomedical Engineering
- Optical Sensing Technologies
- Cardiovascular Health
Background:
- Hypertension affects nearly half of US adults.
- Current at-home blood pressure monitoring lacks convenience and continuous tracking.
- Need for non-invasive, real-time blood pressure measurement solutions.
Purpose of the Study:
- Investigate a wearable optical interrogator for passive, continuous, wireless, transcutaneous blood pressure measurement.
- Validate the use of an implanted fiber Bragg Grating (FBG) sensor for this application.
- Assess the feasibility of the developed technology for widespread adoption.
Main Methods:
- Designed and validated a prototype wearable optical interrogator.
- Utilized an implanted fiber Bragg Grating (FBG) sensor for pressure sensing.
- Tested signal integrity through ex-vivo tissue to ensure accurate transmission.
Main Results:
- Confirmed that the FBG sensor signal remains undistorted when passing through ex-vivo tissue.
- Successfully designed and validated a functional prototype of the optical interrogator.
- Demonstrated the potential for passive, continuous, and wireless transcutaneous blood pressure monitoring.
Conclusions:
- The developed wearable optical interrogator system shows promise for convenient, continuous at-home blood pressure monitoring.
- FBG sensor technology is viable for transcutaneous measurements, overcoming signal distortion issues.
- This innovation could significantly improve hypertension management and patient outcomes.
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