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Biomedical invasive pressure sensor coatings: calibration and waveform perspectives
Q Qananwah1, W Al-Zyoud2, A Al-Zaben1
1Biomedical Systems and Medical Informatics Department, Hijjawi College for Engineering Technology, Yarmouk University, Irbid, Jordan.
Journal of Medical Engineering & Technology
|June 6, 2020
Summary
Biocompatible silicone paste packaging improves catheter sensor accuracy by reducing errors in peak pressure and waveform shape. This material enhances sensor performance for invasive biomedical applications.
Area of Science:
- Biomedical Engineering
- Materials Science
Background:
- Biocompatibility of invasive biomedical sensors is critical for implanted devices.
- Sensor packaging significantly influences performance and requires careful design and evaluation.
- Steady-state calibration can compensate for packaging material effects on sensitivity.
Purpose of the Study:
- To investigate the impact of biocompatible silicone paste packaging on catheter sensor output waveform morphology and response time during dynamic measurements.
- To present a sensor calibration procedure using state-space formulation to mitigate packaging material effects.
Main Methods:
- Comparative analysis of catheter sensor output with and without biocompatible silicone paste.
- Dynamic measurement of sensor response time.
- Development of a state-space formulation for sensor calibration during the design phase.
Main Results:
- Biocompatible silicone paste packaging affects the catheter sensor's output waveform morphology and response time.
- The proposed calibration procedure effectively compensates for packaging material-induced errors.
- Significant reduction in peak pressure and waveform shape errors was observed with optimized geometry and packaging.
Conclusions:
- Catheter sensor geometry and packaging materials, specifically biocompatible silicone paste, can significantly reduce measurement errors.
- The use of biocompatible silicone paste is a scalable and effective approach for enhancing catheter sensor performance.
- Proper packaging design and calibration are essential for accurate invasive biomedical sensing.
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