Redirigiendo al acceso original de articulo en 16 segundos...
Inicio  /  Applied System Innovation  /  Vol: 6 Par: 6 (2023)  /  Artículo
ARTÍCULO
TITULO

An Advanced Physiological Control Algorithm for Left Ventricular Assist Devices

Mohsen Bakouri    

Resumen

Left ventricular assist devices (LVADs) technology requires developing and implementing intelligent control systems to optimize pump speed to achieve physiological metabolic demands for heart failure (HF) patients. This work aimed to design an advanced tracking control algorithm to drive an LVAD under different physiological conditions. The pole placement method, in conjunction with the sliding mode control approach (PP-SMC), was utilized to construct the proposed control method. In this design, the method was adopted to use neural networks to eliminate system uncertainties of disturbances. An elastance function was also developed and used as an input signal to mimic the physiological perfusion of HF patients. Two scenarios, ranging from rest to exercise, were introduced to evaluate the proposed technique. This technique used a lumped parameter model of the cardiovascular system (CVS) for this evaluation. The results demonstrated that the designed controller was robustly tracking the input signal in the presence of the system parameter variations of CVS. In both scenarios, the proposed method shows that the controller automatically drives the LVAD with a minimum flow of 1.7 L/min to prevent suction and 5.7 L/min to prevent over-perfusion.

 Artículos similares

       
 
Francesco Rundo, Alessandro Ortis, Sebastiano Battiato and Sabrina Conoci    
-
Revista: Computation

 
Hassan A. Alsaud, Ahmed E. Abibat, Roger Painter, Lonnie Sharpe and Samuel Keith Hargrove    
Some contaminants of emerging concern (CECs) are known to survive conventional wastewater treatment, which introduces them back to the environment, allowing them to potentially cycle into drinking water. This is especially concerning because of the inher... ver más
Revista: ChemEngineering

 
Caterina Francone, Claudio Cassardo, Federico Spanna, Laura Alemanno, Davide Bertoni, Renzo Richiardone and Irene Vercellino    
The paper summarizes the preliminary results from the analysis of data collected during the 2008 and 2009 vegetative seasons in a northern Italy vineyard (Vitis vinifera L., Barbera variety) and the simulations carried out in the same period with the lan... ver más
Revista: Water