The operating pressures in the right heart are significantly lower than those of the left heart and with marked differences in the circulation impedances. The pulmonary circulation shows a tolerance for mild regurgitation and pressure gradient [1]. Pulmonary regurgitation fractions on the order of 20% and transvalvular pressure gradients of less than 25mm Hg are considered mild [4]. Given this tolerance, we examine the concept of using a motionless valve to regulate flow in the pulmonary position. In a previous study, the use of fluid diodes was shown to be a promising concept for use as a pulmonary valve [2]. In this study, we test two different diode designs. For each diode valve, flow performance was documented as a function of pulmonary vascular resistance (PVR) and compliance. Tests were done using a pulmonary mock circulatory system [3] over the normal adult range of PVR and compliance settings.
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ASME 2007 Summer Bioengineering Conference
June 20–24, 2007
Keystone, Colorado, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
0-7918-4798-5
PROCEEDINGS PAPER
In Vitro Study of Flow Regulation for Pulmonary Insufficiency Using Diode Valves
Tiffany A. Camp
,
Tiffany A. Camp
Clemson University, Clemson, SC
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Stephanie Hequembourg
,
Stephanie Hequembourg
Clemson University, Clemson, SC
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Richard S. Figliola
,
Richard S. Figliola
Clemson University, Clemson, SC
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Tim McQuinn
Tim McQuinn
Medical University of South Carolina, Charleston, SC
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Tiffany A. Camp
Clemson University, Clemson, SC
Stephanie Hequembourg
Clemson University, Clemson, SC
Richard S. Figliola
Clemson University, Clemson, SC
Tim McQuinn
Medical University of South Carolina, Charleston, SC
Paper No:
SBC2007-176723, pp. 763-764; 2 pages
Published Online:
March 12, 2014
Citation
Camp, TA, Hequembourg, S, Figliola, RS, & McQuinn, T. "In Vitro Study of Flow Regulation for Pulmonary Insufficiency Using Diode Valves." Proceedings of the ASME 2007 Summer Bioengineering Conference. ASME 2007 Summer Bioengineering Conference. Keystone, Colorado, USA. June 20–24, 2007. pp. 763-764. ASME. https://doi.org/10.1115/SBC2007-176723
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