A New Blood Pulsation Simulator Platform Incorporating Cardiovascular Physiology for Evaluating Radial Pulse Waveform

Area of Science:

• Biomedical Engineering
• Cardiovascular Physiology
• Medical Device Development

Background:

• Wearable blood pressure sensors require standardized testing systems.
• Existing methods lack the ability to generate physiological, age-dependent pressure waveforms.
• Accurate simulation of the human cardiovascular system is crucial for sensor calibration.

Purpose of the Study:

• To develop a novel radial pulsation simulator.
• To generate age-dependent radial artery pressure waveforms mimicking human cardiovascular physiology.
• To provide a standard platform for wearable blood pressure sensor development and calibration.

Main Methods:

• The simulator integrates modules for left ventricle, aorta, peripheral resistance, and pressure control.
• A compliance chamber adjusts arterial stiffness to produce age-dependent waveforms.
• The augmentation index and pressure-volume loops were used for performance assessment.

Main Results:

• The simulator successfully generated radial pressure waveforms comparable to human pulse signals, including key features like systolic pressures and dicrotic notch.
• The simulator's left ventricular pressure-volume loop analysis confirmed its mechanical resemblance to the human cardiovascular system.
• Generated waveforms demonstrated age-dependent characteristics controlled by arterial stiffness.

Conclusions:

• The developed radial artery pressure simulator serves as an effective standard for calibrating wearable sensors.
• This platform facilitates the development and verification of advanced wearable blood pressure monitoring technology.
• The technology advances real-time radial artery pressure monitoring for potential cardiovascular disease prediction.