研究目的
To design and evaluate a novel fiber optic sensor with mesh microbenders for simultaneous perioperative measurement of heart rate (HR) and respiratory rate (RR) for infants, comparing its performance with standard physiological monitoring.
研究成果
The proposed microbend fiber sensor showed good agreement with standard physiological monitoring in measuring HR and RR for perioperative infants, especially in the absence of gross movement. It offers a potential solution for noninvasive monitoring in clinical settings, though further improvements are needed to overcome motion artifacts.
研究不足
The study was limited to infants in the supine position, and motion noise affected the accuracy of HR measurements. Future studies could explore other positions and integrate motion noise elimination techniques.
1：Experimental Design and Method Selection:
A prospective cross-sectional observational study was conducted with the sensor placed under infants in the perioperative period. The sensor's feasibility was evaluated in 10 infants, comparing its measurements with standard monitoring.
2：Sample Selection and Data Sources:
Infants aged 1 to 12 months undergoing surgery and anesthesia were included, excluding those where supine position was precluded.
3：List of Experimental Equipment and Materials:
A microbend fiber sensor with mesh microbenders, a transceiver, and a notebook for data collection were used.
4：Experimental Procedures and Operational Workflow:
The sensor was placed under the infants in a supine position, with data collected wirelessly. HR and RR were measured and compared with standard monitoring.
5：Data Analysis Methods:
Fast Fourier transformation (FFT) spectra and harmonic signals were used for noise removal and signal analysis.
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