DSpace - Tor Vergata: Item 2108/414

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Title:	Banco prova per la valutazione di dispositivi di assistenza ventricolare (VAD): progettazione e prove sperimentali
Authors:	Nicosia, Salvatore Piedimonte, Fabio
Keywords:	ventricolo elastanza impedenza sistema cardiovascolare PI banco prova VAD
Issue Date:	Jun-2007
Abstract:	In the last decades cardiovascular diseases greatly increased worldwide, and bioengineering provided new technologies and cardiovascular prostheses to medical doctors and surgeons. Ventricular assist devices aroused notable interests. As a consequence it is important to faithfully reproduce the interaction between the prostheses and the cardiovascular system when in-vitro experiments are performed. For this reason, a new and improved kind of test benches become necessary. This thesis describes an artificial ventricle for use in mock circulatory systems. By means of a hybrid software-hardware interaction, it reproduces a modified elastance mechanism (called impedance mechanism) of a natural ventricle by mimicking its preload (mean systemic pressure) and afterload (aortic pressure) sensitivity. Due to its excellent robustness and flexibility, this impedance-based ventricle can be used for designing and testing cardiovascular prostheses. Fabio Piedimonte (piedimonte@disp.uniroma...
Description:	19. ciclo
URI:	http://hdl.handle.net/2108/414
Appears in Collections:	Tesi di dottorato in ingegneria

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