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Related Concept Videos

Pulse rhythm01:30

Pulse rhythm

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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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The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
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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 pulse

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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.
Pre-Procedural Preparation
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To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
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Related Experiment Video

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A Novel Digital Platform for a Monitored Home-based Cardiac Rehabilitation Program
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Wrist Pulse Rate Monitor Using Self-Injection-Locked Radar Technology.

Fu-Kang Wang1, Mu-Cyun Tang2, Sheng-Chao Su3

  • 1Department of Electrical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan. fkw@mail.ee.nsysu.edu.tw.

Biosensors
|October 30, 2016
PubMed
Summary
This summary is machine-generated.

This study demonstrates radar technology for wearable vital sign monitoring. Self-injection-locked (SIL) radar offers a sensitive, low-power solution for detecting heart and respiratory rates.

Keywords:
bistatic radar architecturecontinuous-wave (CW) radarself-injection-locked (SIL) radarwrist pulse rate monitor

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Area of Science:

  • Biomedical Engineering
  • Electrical Engineering
  • Wearable Technology

Background:

  • Vital sign monitoring requires sensitive, comfortable, and durable wearable devices.
  • Radar technology presents a potential solution for non-invasive physiological monitoring.

Purpose of the Study:

  • To evaluate the sensitivity and power consumption of self-injection-locked (SIL) radar compared to continuous-wave (CW) radar for vital sign detection.
  • To develop and assess a wearable pulse rate monitor utilizing a bistatic SIL radar architecture.

Main Methods:

  • Comparative analysis of SIL and CW radar for detecting respiratory and heart rates at a distance.
  • Construction of a pulse rate monitor using an active antenna with a SIL oscillator (SILO) and patch antenna.
  • Modulation of the SILO with Doppler signals from wrist-based pulse detection and subsequent signal demodulation.

Main Results:

  • Identified SIL radar as a promising technology for sensitive vital sign detection with lower power consumption.
  • Successfully developed a wearable pulse rate monitor based on the bistatic SIL radar architecture.
  • Demonstrated the capability of the device to extract pulse rate information from the demodulated SILO output signal.

Conclusions:

  • SIL radar technology is suitable for developing sensitive, low-power wearable vital sign monitors.
  • The developed bistatic SIL radar pulse monitor effectively acquires physiological data from the wrist.
  • This approach offers a viable pathway for advanced, non-invasive health monitoring solutions.