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Pulse

Pulse

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.
The pulse serves as a clinical...

Equipments Used To Measure Blood Pressure

Equipments Used To Measure Blood Pressure

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...

Assessment of apical radial pulse

Assessment of apical radial pulse

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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Related Experiment Video

Updated: Jun 26, 2025

Measuring the Carotid to Femoral Pulse Wave Velocity Cf-PWV to Evaluate Arterial Stiffness

Measuring the Carotid to Femoral Pulse Wave Velocity Cf-PWV to Evaluate Arterial Stiffness

Published on: May 3, 2018

Artery Pulse Waveform Acquired with a Fabry-Perot Interferometer.

Sergio Calixto¹, Zacarias Malacara-Hernandez¹, Guillermo Garnica¹

¹Centro de Investigaciones en Optica, Loma del Bosque 115, León 37150, Mexico.

Sensors (Basel, Switzerland)

|May 11, 2024

Summary

This study introduces an optical method using a Fabry-Perot interferometer to measure arterial pulse waveforms. This innovative technique offers a potential alternative to electronic sensors, addressing issues like electromagnetic interference and e-waste.

Keywords:

Fabry-Perot interferometer artery pulse waveform pulsometer

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Wideband Optical Detector of Ultrasound for Medical Imaging Applications

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Last Updated: Jun 26, 2025

Measuring the Carotid to Femoral Pulse Wave Velocity Cf-PWV to Evaluate Arterial Stiffness

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Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Wideband Optical Detector of Ultrasound for Medical Imaging Applications

Published on: May 11, 2014

Area of Science:

Biomedical Optics
Optical Sensing
Medical Instrumentation

Background:

Continuous vital sign monitoring is crucial for hospitalized patients, including electrocardiogram (ECG) and arterial pulse waveforms.
Current electronic pulse sensors face challenges such as electromagnetic interference, complex fabrication, and electronic waste generation.

Purpose of the Study:

To propose and characterize a novel optical method for measuring arterial pulse waveforms.
To present a proof-of-concept optical device as an alternative to existing electronic pulse measurement technologies.

Main Methods:

An optical method utilizing a Fabry-Perot interferometer with two mirrors was developed.
A pulse sensor, comprising an acrylic cell with a membrane, captures wrist vasodilatation, creating an air pulse.
The air pulse actuates a mirror in a metallic cell, causing fringe shifts in the interference pattern detected by a sensor.

Main Results:

The optical device successfully generated arterial pulse waveforms.
Characterization of the optical device as a test of concept was performed.
The performance of the optical device was compared against conventional electronic devices.

Conclusions:

The proposed optical method provides a viable approach for measuring arterial pulse waveforms.
This optical sensing technique demonstrates potential for overcoming limitations of current electronic pulse monitors.
Further development could lead to more robust and environmentally friendly vital sign monitoring solutions.