In order to bridge the gap of existing artificial heart technology to the diverse needs of the patient population, we have been investigating the viability of a scaled-down design of the current 70 cc Penn State artificial heart. The issues of clot formation and hemolysis may become magnified within a 50 cc chamber compared to the existing 70 cc one. Particle image velocimetry (PIV) was employed to map the entire 50 cc Penn State artificial heart chamber. Flow fields constructed from PIV data indicate a rotational flow pattern that provides washout during diastole. In addition, shear rate maps were constructed for the inner walls of the heart chamber. The lateral walls of the mitral and aortic ports experience high shear rates while the upper and bottom walls undergo low shear rates, with sufficiently long exposure times to potentially induce platelet activation or thrombus formation. In this study, we have demonstrated that PIV may adequately map the flow fields accurately in a reasonable amount of time. Therefore, the potential exists of employing PIV as a design tool.
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October 2004
Technical Papers
Fluid Dynamic Analysis of the 50 cc Penn State Artificial Heart Under Physiological Operating Conditions Using Particle Image Velocimetry
Pramote Hochareon,
Pramote Hochareon
Pennsylvania State University, Department of Bioengineering, 205 Hallowell Building, University Park, Pennsylvania 16802 USA
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Keefe B. Manning,
Keefe B. Manning
Pennsylvania State University, Department of Bioengineering, 205 Hallowell Building, University Park, Pennsylvania 16802 USA
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Arnold A. Fontaine,
Arnold A. Fontaine
Pennsylvania State University, Department of Bioengineering, 205 Hallowell Building, University Park, Pennsylvania 16802 USA
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John M. Tarbell,
John M. Tarbell
City College of New York, Department of Biomedical Engineering, Convent Ave. @138th Street, New York, New York 10031 USA
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Steven Deutsch
Steven Deutsch
Pennsylvania State University, Department of Bioengineering, 205 Hallowell Building, University Park, Pennsylvania 16802 USA
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Pramote Hochareon
Pennsylvania State University, Department of Bioengineering, 205 Hallowell Building, University Park, Pennsylvania 16802 USA
Keefe B. Manning
Pennsylvania State University, Department of Bioengineering, 205 Hallowell Building, University Park, Pennsylvania 16802 USA
Arnold A. Fontaine
Pennsylvania State University, Department of Bioengineering, 205 Hallowell Building, University Park, Pennsylvania 16802 USA
John M. Tarbell
City College of New York, Department of Biomedical Engineering, Convent Ave. @138th Street, New York, New York 10031 USA
Steven Deutsch
Pennsylvania State University, Department of Bioengineering, 205 Hallowell Building, University Park, Pennsylvania 16802 USA
Contributed by the Bioengineering Division for publication in the JOURNAL OF BIOMECHANICAL ENGINEERING. Manuscript received by the Bioengineering Division April 15, 2004; revision received May 4, 2004. Associate Editor: C. R. Ethier.
J Biomech Eng. Oct 2004, 126(5): 585-593 (9 pages)
Published Online: November 23, 2004
Article history
Received:
April 15, 2004
Revised:
May 4, 2004
Online:
November 23, 2004
Citation
Hochareon , P., Manning , K. B., Fontaine, A. A., Tarbell, J. M., and Deutsch, S. (November 23, 2004). "Fluid Dynamic Analysis of the 50 cc Penn State Artificial Heart Under Physiological Operating Conditions Using Particle Image Velocimetry ." ASME. J Biomech Eng. October 2004; 126(5): 585–593. https://doi.org/10.1115/1.1798056
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