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A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
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Related Experiment Video

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Optimizing Transcutaneous Oxygen Measurement Sites on Humans.

Abigail Leonardi, Ciara Murphy, Sydney Hobson

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 12, 2023
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    Summary
    This summary is machine-generated.

    A novel optical sensor for transcutaneous oxygen monitoring offers a safer, wearable alternative to traditional methods. The thumb proved to be the optimal placement for this advanced respiratory monitoring device.

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    Area of Science:

    • Biomedical Engineering
    • Optical Sensing Technologies
    • Medical Devices

    Background:

    • Conventional transcutaneous oxygen monitors use electrochemical sensors, requiring heating and posing risks of skin irritation or burns.
    • There is a need for safer, more comfortable, and wearable sensors for continuous remote respiratory monitoring.

    Purpose of the Study:

    • To evaluate a novel luminescence-based optical sensor for transcutaneous oxygen monitoring.
    • To determine the optimal body location for wearable transcutaneous oxygen sensor placement.

    Main Methods:

    • Utilized a platinum porphyrin film-based optical sensor that measures luminescence quenching by oxygen.
    • Assessed sensor performance across five body locations (thumb, wrist, forearm, thigh, shin) in four healthy volunteers.
    • Measured partial pressure of transcutaneous oxygen via luminescence lifetime.

    Main Results:

    • The optical sensor provided accurate and reliable transcutaneous oxygen data across all tested locations.
    • The thumb location exhibited the shortest settling times and most uniform luminescence lifetime values.
    • The luminescence-based sensor uses dry electrodes, eliminating heating and reducing skin irritation risks.

    Conclusions:

    • Luminescence-based transcutaneous oxygen sensing is a viable and potentially revolutionary technology for at-home and remote monitoring.
    • The thumb is identified as the optimal placement site for wearable optical transcutaneous oxygen sensors due to superior performance characteristics.
    • This technology enhances patient safety and enables the development of miniature, wearable devices for continuous respiratory monitoring.