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A novel apparatus to measure the biomechanical properties of blood vessels

Zhanshe Guo (School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China and State Key Laboratory of Virtual Reality Technology and Systems, Beijing, China)
Taiyi Zhang (School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China and State Key Laboratory of Virtual Reality Technology and Systems, Beijing, China)
Xiangdang Liang (Chinese Pla General Hospital, Beijing, China)
Yutong Wang (School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing, China and State Key Laboratory of Virtual Reality Technology and Systems, Beijing, China)

Sensor Review

ISSN: 0260-2288

Article publication date: 22 June 2020

Issue publication date: 21 July 2020

Abstract

Purpose

The study of vascular mechanics is important. The purpose of this paper is to present an apparatus to measure the biomechanical properties of blood vessels, which can be used for tensile test and fatigue test.

Design/methodology/approach

This equipment consists of a mechanical test platform, a hardware circuit based on FPGA and control software. The torque generated by stepper motor is converted to axial force by ball screw, and the vascular specimen is stretched axially. The tension is measured by a load cell, and the displacement is recorded by a grating displacement sensor.

Findings

According to the results of calibration experiment and stability experiment, the linearity error of the system is 0.251, the hysteresis error is 0.047, the repeatability error is 0.185, the comprehensive error is 0.315 and the standard deviation of the output is less than 0.01 N. A test of animal vascular mechanical properties was carried out, and the results are consistent with the theory.

Originality/value

This apparatus is designed to measure biomechanical properties of blood vessels, and the results of experiments indicate that it is stable and reliable. This work is valuable for studying vascular disease and testing artificial blood vessels.

Keywords

Acknowledgements

This work was supported by the Beihang University Graduate Student Innovation and Practice Fund (YCSJ-01–201908).

Citation

Guo, Z., Zhang, T., Liang, X. and Wang, Y. (2020), "A novel apparatus to measure the biomechanical properties of blood vessels", Sensor Review, Vol. 40 No. 4, pp. 513-520. https://doi.org/10.1108/SR-01-2019-0023

Publisher

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Emerald Publishing Limited

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