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Related Concept Videos

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.
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Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
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Pulse rhythm01:30

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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.
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Pulse01:16

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When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
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Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
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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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Assessment of apical radial pulse01:25

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Apical-Radial (A-R) Pulse Assessment
The A-R pulse assessment involves simultaneous evaluation of the apical and radial pulses. When the apical and radial pulse rates vary, this assessment helps identify a pulse deficit.
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Related Experiment Video

Updated: Aug 13, 2025

A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
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Intelligent Wearable Wrist Pulse Detection System Based on Piezoelectric Sensor Array.

Yan-Yun Liu1, Yu-Xiang Lv1, Hai-Bin Xue2

  • 1Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China.

Sensors (Basel, Switzerland)
|January 21, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a new wearable system for accurate radial artery pulse detection. It improves pulse analysis for better health monitoring, achieving over 98% accuracy.

Keywords:
human health statuskey points of radial arterythe new piezoelectric sensor arraythe pulse signal waveformthe slippery pulse and the normal pulsewearable wristbands

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Area of Science:

  • Biomedical Engineering
  • Health Informatics

Background:

  • Radial artery pulse analysis offers valuable health insights.
  • Current methods face challenges in accurate pulse detection, noise reduction, and recognition.

Purpose of the Study:

  • To develop an advanced wearable system for precise radial artery pulse waveform detection and condition identification.
  • To overcome limitations in existing pulse detection technologies.

Main Methods:

  • A novel hardware circuit combining a main control circuit and piezoelectric sensor array in a wristband.
  • Adaptive algorithms for radial artery key point localization.
  • Wavelet transform, iterative sliding window, and prediction reconstruction for signal denoising.
  • Feature extraction and classification for pulse recognition (e.g., slippery vs. normal pulse).

Main Results:

  • The system demonstrates accurate pulse positioning and effective noise reduction.
  • Intelligent analysis achieves a high accuracy of up to 98.4% in recognizing pulse conditions.
  • The system is suitable for family healthcare applications.

Conclusions:

  • The developed system offers a significant advancement in wearable pulse detection technology.
  • High accuracy in pulse analysis supports improved health status understanding and family healthcare.
  • Addresses key challenges in radial artery pulse detection for practical health monitoring.