Blood flow in a double output centrifugal artificial heart pump as a biventricular assist device

Dongchoon Sin, Andy C. C. Tan, Neil Kelson, Gary Chadwick

Abstract


Recent results show that left ventricular assist devices can extend patient's lives, but may cause right heart failure syndrome; consequently, these patients require a right ventricular assist device. Therefore, biventricular assist device implantation is recommended for long term use. Current development of a biVentricular Assist Device consists of left and right chambers housed in a single unit with different chamber capacity to cater for the differential pressure in left and right outputs. This article proposes a novel biventricular assist device design and estimates the leakage flow. To identify the leakage flow in a biventricular assist device, numerical simulations calculate the velocity profiles and the volumetric flow rates; the results show that the leakage flow rate is dependent on the variation in impeller rotational speed. Computational fluid dynamics simulation is essential to ensure effective and reliable small blood pumps.

References
  • Y. Nose, K. Nakata, M. Yoshikawa, G. V. Letsou, A. Fujisawa, E. Wolner, and H. Schima, Development of a totally implantable biventricular bypass centrifugal blood pump system, Annals of Thoracic Surgery, 68, pp. 775--9, 1999. http://ats.ctsnetjournals.org/cgi/content/full/68/2/775
  • M. Nishida, T. Yamane, and B. Asztalos, Washout Hole Flow Measurement for the Development of a Centrifugal Blood Pump, Artificial Organs, 22, pp. 386--392. doi:10.1046/j.1525-1594.1998.06155.x
  • Y. Nose, Design and Development Strategy for the Rotary Blood Pump, Artificial Organs, 22, pp. 438--446, 1998. doi:10.1046/j.1525-1594.1998.06098.x
  • W. K. Chan, T. Akamatsu, and H. D. Li, Analytical Investigation of Leakage Flow in Disk clearance of a Magnetically Suspended Centrifugal Impeller, Artificial Organs, 24, pp. 734--742, 2000. doi:10.1046/j.1525-1594.2000.06507.x
  • W. K. Chan, Wong, Y. W.,, A Review of Leakage Flow in Centrifugal Blood Pump, Arficial Organs, 30, pp. 354--359, 2006. doi:10.1111/j.1525-1594.2006.00225.x
  • M. Nishida and T. Yamane, Geometric Optimization for Non-Thrombogenicity of a Centrifugal Blood Pump through Computational Fluid Dynamic Analysis, JSME International Journal, 47, pp. 1108--1116, 2004. http://sciencelinks.jp/j-east/article/200506/000020050605A0020366.php
  • k. Kido, H. Hoshi, N. Watanabe, H. Kataoka, K. Ohuchi, J. Asama, T. Shinshi, M. Yoshikawa, and S. Takatani, Computational Fluid Dynamics Analysis of the Pediatric Tiny Centrifugal Blood Pump (TinyPump), Arficial Organs, 30, pp. 392--399, 2006. doi:10.1111/j.1525-1594.2006.00231.x
  • D. L. Timms, Design, Development and Evaluation of Centrifugal Type Ventricular Assist Devices, in Engineering Systems. Brisbane: Queensland University of Technology, 2005, p. 300.
  • C. Gobel, A. Arvand, R. Eilers, O. Marseille, C. Bals, B. Meyns, W. Flameng, G. Rau, and H. Reul, Development of the MEDOS/HIA DeltaStream Extracorporeal Rotary Blood Pump, Artificial Organs, 25, pp. 358--365, 2001. doi:10.1046/j.1525-1594.2001.025005358.x
  • T. Tsukiya, Y. Taenaka, E. Tatsumi, and H. Takano, Improvement of Washout Flow in a Centrifugal Blood Pump by a Semi-open Impeller, ASAIO Journal, 48, pp. 76--82, 2002.
  • T. Yamane, T. Miyamoto, T. Tajima, K. Yamazaki, H. Clarke, B. Asztalos, M. Nishida, T. Yamane, and T. Kobayashi, Flow Visualization Measurement for Shear Velocity Distribution in the Impeller-Casing Gap of a Centrifugal Blood Pump, JSME International Journal, 42, pp. 621--627, 1999. http://sciencelinks.jp/j-east/article/200003/000020000399A0853032.php
  • T. Ikeda, T. Yamane, T. Orita, and T. Tateishi, A quantitative visualization study of flow in a scaled-up model of a centrifugal blood pump, Artificial Organs, 20, pp. 132--138, 1996.
  • L. Chua, Leakage Flow Rate and Wall Shear Stress Distributions in a Biocentrifugal Ventricular Assist Device, ASAIO Journal, 50, pp. 530--536, 2004.
  • B. Asztalos, T. Yamane, and M. Nishida, Flow Visualization Analysis for Evaluation of Shear and Recirculation in a New Closed-Type, Monopivot Centrifugal Blood Pump, Artificial Organs, 23, pp. 939--946, 1999. doi:10.1046/j.1525-1594.1999.06256.x

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DOI: http://dx.doi.org/10.21914/anziamj.v48i0.132



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