TY - GEN
T1 - Physiological control of rotary left ventricular assist device
AU - Wu, Yi
PY - 2007
Y1 - 2007
N2 - In rotary left ventricular assist device (LVAD), physiological control system is the element to automatically regulate the pump speed to ensure enough perfusion of patients. In this paper, the design of the physiological control system of rotary LVADs is reviewed first, such as criteria of physiological control system, sensors/signals, and control algorithms. Then the design of an adaptive optimal controller for permanent LVADs is discussed. A Matlab simulation program and an experimental mock circulatory loop are employed as test environments for the controller. Different physiological conditions, such as the variation of left ventricular failures and the variation of activities are simulated to study the performance of the designed physiological controller. Simulation and experimental results consistently show that the abnormal hemodynamic variables of a congestive heart failure patient are restored back to the normal physiological range by the designed controller.
AB - In rotary left ventricular assist device (LVAD), physiological control system is the element to automatically regulate the pump speed to ensure enough perfusion of patients. In this paper, the design of the physiological control system of rotary LVADs is reviewed first, such as criteria of physiological control system, sensors/signals, and control algorithms. Then the design of an adaptive optimal controller for permanent LVADs is discussed. A Matlab simulation program and an experimental mock circulatory loop are employed as test environments for the controller. Different physiological conditions, such as the variation of left ventricular failures and the variation of activities are simulated to study the performance of the designed physiological controller. Simulation and experimental results consistently show that the abnormal hemodynamic variables of a congestive heart failure patient are restored back to the normal physiological range by the designed controller.
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U2 - 10.1109/CHICC.2006.4347618
DO - 10.1109/CHICC.2006.4347618
M3 - Conference contribution
AN - SCOPUS:37749039827
SN - 7900719229
SN - 9787900719225
T3 - Proceedings of the 26th Chinese Control Conference, CCC 2007
SP - 469
EP - 474
BT - Proceedings of the 26th Chinese Control Conference, CCC 2007
T2 - 26th Chinese Control Conference, CCC 2007
Y2 - 26 July 2007 through 31 July 2007
ER -