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Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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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: May 24, 2025

Surgically Induced Cardiac Volume Overload by Aortic Regurgitation in Mouse
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Towards a Wearable, High Precision, Multi-Functional Stethoscope.

Declan Duggan, Volodymyr Sarana, Andreea Factor

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    |March 5, 2025
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    Summary
    This summary is machine-generated.

    This study introduces a low-power digital stethoscope for neonatal cardiology, enabling AI analysis of heart sound data. A novel simulation framework assesses Phonocardiogram (PCG) quality without human trials, minimizing artifacts for better congenital heart disease detection.

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    Area of Science:

    • Biomedical Engineering
    • Medical Devices
    • Cardiology

    Background:

    • Neonatal cardiology requires high-quality heart sound data for diagnosing conditions like congenital heart disease (CHD).
    • Traditional stethoscopes and existing digital versions face limitations in data quality and artifact reduction.
    • Assessing new digital stethoscopes on neonates is challenging due to health and safety concerns.

    Purpose of the Study:

    • To design and implement a low-power digital stethoscope using optical and electrical sensors.
    • To develop a simulation framework for evaluating Phonocardiogram (PCG) quality in neonatal applications.
    • To enable edge-based AI analysis of high-fidelity PCG data for improved neonatal cardiac diagnostics.

    Main Methods:

    • Development of a novel low-power digital stethoscope prototype.
    • Implementation of a simulation framework to generate and assess PCG signals.
    • Evaluation of the stethoscope's performance in minimizing artifacts compared to traditional methods.
    • Focus on applications in neonatal cardiology, specifically for congenital heart disease (CHD) detection.

    Main Results:

    • The designed digital stethoscope effectively acquires high-quality PCG data.
    • The simulation framework provides a reliable method for assessing PCG quality without human participants.
    • The device demonstrates reduced artifacts, crucial for accurate neonatal heart sound analysis.
    • The potential for wearable, continuous PCG monitoring was established.

    Conclusions:

    • The developed low-power digital stethoscope offers a promising solution for neonatal cardiology.
    • The simulation framework addresses the challenge of evaluating devices on neonates.
    • The technology facilitates advanced AI-assisted analysis for early detection of congenital heart disease (CHD).
    • The device's design supports continuous, artifact-minimized PCG acquisition.