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An Output Feedback Pusher Plate Controller for the Penn State Electric Ventricular Assist Device: Stability Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The development of an optimal output feedback controller for the Penn State electric ventricular assist device (EVAD) is addressed. The controller is designed to minimize the electric energy ...
Dynamic Model of a Sac-Type Pneumatically Driven Artificial Ventricle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Inlet and outlet pressures and flows were obtained over a wide range of operating conditions for a pneumatically driven sac-type artificial ventricle connected to a mechanical mock circulatory ...
A Novel Output Feedback Pusher Plate Controller for the Penn State Electric Ventricular Assist Device
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper addresses the development of an output feedback controller for the Penn State Electric Ventricular Assist Device (EVAD). The control law is designed to minimize the electric power ...
An Experimental Study of Newtonian and Non-Newtonian Flow Dynamics in a Ventricular Assist Device
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The fluid dynamic behavior of a Newtonian water/glycerol solution, a non-Newtonian polymer (separan) solution, and bovine blood were compared in the Penn State Electrical Ventricular Assist Device ...
Aortic Pressure Estimation With Electro-Mechanical Circulatory Assist Devices
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An adaptive technique for the estimation of the time history of aortic pressure (from applied voltage and position feedback) has been designed, implemented, and bench tested using the Penn State ...
LDA Measurements of Mean Velocity and Reynolds Stress Fields Within an Artificial Heart Ventricle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Laser Doppler Anemometry measurements of mean (ensemble average) velocities and turbulent (Reynolds) stresses at 140 locations within the left ventricle of the Penn State 70 cc electric artificial ...
A Cam-Type Electric Motor-Driven Left Ventricular Assist Device
Publisher: The American Society of Mechanical Engineers (ASME)
Hot-Film Wall Shear Probe Measurements Inside a Ventricular Assist Device
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Wall shear rates at eleven sites within the Penn State Electric Ventricular Assist Device (EVAD) were determined with the pump operating under conditions of 30 and 50 percent systolic duration ...
Pulsed Ultrasonic Doppler Velocity Measurements Inside a Left Ventricular Assist Device
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study we have employed a single channel, pulsed ultrasonic Doppler velocimeter to measure instantaneous velocity distributions within the pumping chamber of a ventricular assist device. ...