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20 results on '"Gellman, Barry"'

5. Development of Inspired Therapeutics Pediatric VAD: Benchtop Evaluation of Impeller Performance and Torques for MagLev Motor Design

Author

Tompkins, Landon H., primary, Prina, Steven R., additional, Gellman, Barry N., additional, Morello, Gino F., additional, Roussel, Thomas, additional, Kopechek, Jonathan A., additional, Williams, Stuart J., additional, Petit, Priscilla C., additional, Slaughter, Mark S., additional, Koenig, Steven C., additional, and Dasse, Kurt A., additional

Published
2021
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14. Development, Pre-Clinical Validation of the UltraMag and Summary of the Clinical Experience With Levitronix Ventricular Assist System

Author

Gellman, Barry N., primary, Richardson, J. Scott, additional, Tuzun, Egemen, additional, Gempp, Thomas M., additional, Harms, Kelly M., additional, Fleischli, Andreas, additional, Moody, Kimberly S., additional, Marks, John D., additional, Conger, Jeff L., additional, Kent, Stella, additional, Frazier, O. Howard, additional, and Dasse, Kurt A., additional

Published
2011
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16. Assessment of Hydraulic Performance and Biocompatibility of a MagLev Centrifugal Pump System Designed for Pediatric Cardiac or Cardiopulmonary Support

Author

Dasse, Kurt A., primary, Gellman, Barry, additional, Kameneva, Marina V., additional, Woolley, Joshua R., additional, Johnson, Carl A., additional, Gempp, Thomas, additional, Marks, John D., additional, Kent, Stella, additional, Koert, Andrew, additional, Richardson, J Scott, additional, Franklin, Steve, additional, Snyder, Trevor A., additional, Wearden, Peter, additional, Wagner, William R., additional, Gilbert, Richard J., additional, and Borovetz, Harvey S., additional

Published
2007
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19. DEVELOPMENT AND IN VIVO EVALUATION OF THE LEVITRONIX PEDIATRIC VAS

Author

Wearden, Peter, primary, Morell, Victor, additional, Badylak, Stephen, additional, Kameneva, Marina V, additional, Snyder, Trevor A, additional, Bengston, Shawn, additional, Wagner, William, additional, Borovetz, Harvey S, additional, Koert, Andrew J, additional, Gempp, Thomas, additional, Gellman, Barry N, additional, and Dasse, Kurt A, additional

Published
2006
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20. Computational and Experimental Evaluation of the Fluid Dynamics and Hemocompatibility of the CentriMag Blood Pump.

Author

Juntao Zhang, Gellman, Barry, Koert, Andrew, Dasse, Kurt A., Gilbert, Richard J., Griffith, Bartley P., and Wu, Zhongjun J.

Subjects
*FLUID dynamics, *BODY fluids, *HEMOLYSIS & hemolysins, *BLOOD flow, *HEART ventricles, *MEDICAL equipment
Abstract

The CentriMag centrifugal blood pump is a newly developed ventricular assist device based on magnetically levitated bearingless rotor technology. A combined computational and experimental study was conducted to characterize the hemodynamic and hemocompatibility performances of this novel blood pump. Both the three-dimensional flow features of the CentriMag blood pump and its hemolytic characteristics were analyzed using computational fluid dynamics (CFD)-based modeling. The hydraulic pump performance and hemolysis level were quantified experimentally. The CFD simulation demonstrated a clean and streamlined flow field in the main components of the CentriMag blood pump. The predicted results by hemolysis model indicated no significant high shear stress regions in the pump. A comparison of CFD predictions and experimental results showed good agreements. The relatively large gap passages (1.5 mm) between the outer rotor walls and the lower housing cavity walls provide a very good surface washing through a secondary flow path while the shear stresses in the secondary flow paths are reduced, resulting in a low rate of hemolysis ([Normalized Index of Hemolysis] NIH = 0.0029 ± 0.006) without a decrease of the pump's hydrodynamic performance (pressure head: 352 mm Hg at a flow rate of 5.0 L/min and a rotational speed of 4000 rpm). [ABSTRACT FROM AUTHOR]

Published
2006
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