On the Design, Modeling, and Control of a Hybrid Pump System for Dynamic Pressurization of Explanted Mammalian Hearts
Title: | On the Design, Modeling, and Control of a Hybrid Pump System for Dynamic Pressurization of Explanted Mammalian Hearts |
Author: | Dugan, Sean Patrick-Michael |
Advisors: | Dr. Gregory D. Buckner, Committee Chair Dr. Larry Silverberg, Committee Member Dr. Denis R. Cormier, Committee Member Dr. Andre P. Mazzoleni, Committee Member |
Abstract: | A hybrid electromechanical pump system is proposed to mimic left ventricular blood pressure in a living mammalian heart. The system consists of a gear pump and voice coil actuated diaphragm (VCAD) pump connected in parallel. By combining a high-capacity, low-bandwidth gear pump with a low-capacity, high-bandwidth VCAD pump, the advantages of both can be realized, resulting in an economical high-bandwidth pumping system that may be used with animal hearts of arbitrary size. Mathematical models are developed to describe the system dynamics and develop a digital controller. Experimental results are also presented. |
Date: | 2008-02-28 |
Degree: | MS |
Discipline: | Mechanical Engineering |
URI: | http://www.lib.ncsu.edu/resolver/1840.16/519 |
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