Heart assist devices: Modeling and diagnostics

Taoufik Wassar; Matthew Franchek; Karolos M. Grigoriadis; Cedric Benkowski; Mehmet C. Kadipasaoglu; Steven M. Parnis

doi:10.1109/MECBME.2014.6783241

Heart assist devices: Modeling and diagnostics

Taoufik Wassar, Matthew Franchek, Karolos M. Grigoriadis, Cedric Benkowski, Mehmet C. Kadipasaoglu, Steven M. Parnis

Research Institute

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, adaptive stead-state models are presented for axial flow-pumps used as heart assist devices. These models predict flow rate and power consumption of the pump based on the pressure differential (head) and impeller speed. The developed models are identified using system identification techniques on data obtained from a mock circulatory loop. The mock circulatory experiments include physiologic conditions ranging from a healthy heart function to heart failure. The online adaptive nature of these models is used to estimate effective blood viscosity in real-time. Additional mock circulatory loop experiments are performed to emulate flow obstruction at the pump outlet. Results show that the coefficients from the adapted models can be used to detect, identify and estimate the fault.

Original language	English (US)
Title of host publication	2014 Middle East Conference on Biomedical Engineering, MECBME 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	208-211
Number of pages	4
ISBN (Print)	9781479947997
DOIs	https://doi.org/10.1109/MECBME.2014.6783241
State	Published - Jan 1 2014
Event	2014 2nd Middle East Conference on Biomedical Engineering, MECBME 2014 - Doha, Qatar Duration: Feb 17 2014 → Feb 20 2014

Other

Other	2014 2nd Middle East Conference on Biomedical Engineering, MECBME 2014
Country	Qatar
City	Doha
Period	2/17/14 → 2/20/14

Keywords

axial-flow pump
pump health monitoring
real-time viscosity estimation
ventricular assist devices

ASJC Scopus subject areas

Biomedical Engineering

Access to Document

10.1109/MECBME.2014.6783241

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Heart assist devices : Modeling and diagnostics. / Wassar, Taoufik; Franchek, Matthew; Grigoriadis, Karolos M.; Benkowski, Cedric; Kadipasaoglu, Mehmet C.; Parnis, Steven M.

2014 Middle East Conference on Biomedical Engineering, MECBME 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 208-211 6783241.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wassar, T, Franchek, M, Grigoriadis, KM, Benkowski, C, Kadipasaoglu, MC & Parnis, SM 2014, Heart assist devices: Modeling and diagnostics. in 2014 Middle East Conference on Biomedical Engineering, MECBME 2014., 6783241, Institute of Electrical and Electronics Engineers Inc., pp. 208-211, 2014 2nd Middle East Conference on Biomedical Engineering, MECBME 2014, Doha, Qatar, 2/17/14. https://doi.org/10.1109/MECBME.2014.6783241

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abstract = "In this paper, adaptive stead-state models are presented for axial flow-pumps used as heart assist devices. These models predict flow rate and power consumption of the pump based on the pressure differential (head) and impeller speed. The developed models are identified using system identification techniques on data obtained from a mock circulatory loop. The mock circulatory experiments include physiologic conditions ranging from a healthy heart function to heart failure. The online adaptive nature of these models is used to estimate effective blood viscosity in real-time. Additional mock circulatory loop experiments are performed to emulate flow obstruction at the pump outlet. Results show that the coefficients from the adapted models can be used to detect, identify and estimate the fault.",

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