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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

1.3K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
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Holter Monitor: 24-Hour Monitoring01:23

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Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
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Pulse Oximetry01:24

Pulse Oximetry

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Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
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Equipments Used To Measure Blood Pressure01:30

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Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
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Related Experiment Video

Updated: Jan 9, 2026

A Community-based Stress Management Program: Using Wearable Devices to Assess Whole Body Physiological Responses in Non-laboratory Settings
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OPSensing: Embracing Real-Time PPG Monitoring with Intraoral Wearables.

Yifan Yang, Zhaowei Chang, Jia Hu

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 3, 2025
    PubMed
    Summary
    This summary is machine-generated.

    Introducing OPSensing, an innovative intraoral wearable for continuous physiological monitoring. This system offers accurate Pulse Rate and Blood Oxygen Saturation measurements, overcoming limitations of traditional wearables.

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    Area of Science:

    • Biomedical Engineering
    • Wearable Technology
    • Physiological Monitoring

    Background:

    • Photoplethysmography (PPG) is crucial for monitoring Pulse Rate (PR) and Blood Oxygen Saturation (SpO2).
    • Existing wearables face challenges with motion artifacts, noise, and user comfort.
    • The oral environment offers a stable, shielded location for PPG signal acquisition.

    Purpose of the Study:

    • To develop and evaluate OPSensing, an intraoral PPG sensing system.
    • To achieve real-time, accurate PR and SpO2 estimation.
    • To demonstrate the potential of intraoral wearables for continuous physiological monitoring.

    Main Methods:

    • Developed an intraoral PPG sensing system (OPSensing).
    • Utilized a multi-wavelength PPG approach and signal processing algorithms.
    • Collected data from 10 participants, comparing with a commercial pulse oximeter.

    Main Results:

    • OPSensing achieved a Root Mean Square Error (RMSE) of 1.88 bpm for PR and 2.99% for SpO2.
    • Results meet U.S. Food and Drug Administration (FDA) recommended RMSE values.
    • Demonstrated continuous monitoring capability over seven hours during sleep studies.

    Conclusions:

    • OPSensing provides a viable solution for accurate, non-invasive physiological monitoring.
    • The intraoral environment enhances PPG signal quality and reduces artifacts.
    • Intraoral wearables show significant potential for long-term health tracking.