Methodology for measuring the gap size using a fiber-optic displacement sensor exemplified by a centrifugal blood pump

Authors

  • Maciej Gawlikowski Foundation of Cardiac Surgery Development and Division of Biomedical Engineering, Silesian Technical University http://orcid.org/0000-0002-6526-2656
  • Przemysław Kurtyka Foundation of Cardiac Surgery Development and Division of Biomedical Engineering, Silesian Technical University http://orcid.org/0000-0001-8692-0737
  • Jerzy Zalewski Foundation of Cardiac Surgery Development
  • Magda Zarwańska-Doffek Foundation of Cardiac Surgery Development
  • Artur Kapis Foundation of Cardiac Surgery Development

DOI:

https://doi.org/10.4302/plp.v12i2.1017

Abstract

In order to avoid blood clotting, in the second generation of rotary blood pumps the impeller is suspended without mechanical bearing, using balance of magnetic and hydrodynamic forces. Reaching single tens of microns gap between pump housing and impeller is crucial for level of blood traumatization by the pump. In this paper we would like to present the method of physical measurement of this gap on a running pump with the use of commercial fiber-optic proximity sensor on the example of Polish rotary blood pump ReligaHeart ROT. We also discussed technical requirements of the construction of laboratory stand.

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References
  1. S. Westaby, "Rotary blood pumps as definitive treatment for severe heart failure", Future Cardiol. 9, 2 (2013). CrossRef
  2. R. Delgado, M. Bergheim, "HeartMate® II left ventricular assist device: a new device for advanced heart failure", Epert Rev. Med. Devices, 2, 5 (2005). CrossRef
  3. M. Ozban, T. Yagdi, C. Engin et al, Transplant proc., 44, 6 (2012). CrossRef
  4. A.T. Lanfear, M. Hamandi, J. Fan et al., "Trends in HeartMate 3: What we know so far", J. Card. Surg., 35, 1 (2020). CrossRef
  5. Ch. Zengsheng, S. Anqiang, W. Hongyu, "Non-physiological shear stress-induced blood damage in ventricular assist device", Medicine in Novel Technology and Devices, 3 (2019). CrossRef
  6. A. M. Robertson, A. Sequeira, R. G. Owens, Rheological models of blood In: L. Formaggia, A. Quarteroni, A Veneziani (eds) Cardiovascular Mathematics (Milano, Springer-Verlag 2009) CrossRef
  7. M. Gawlikowski et al., "Necessity of telemonitoring in patients treated by means of cardiac assist systems on the example of Polish rotary blood pump ReligaHeart ROT", Advances in Intelligent Systems and Computing, 925 (2019). CrossRef
  8. R. Kustosz, et al., "The tin coating utilisation as blood contact surface modification in implantable rotary left ventricle assist device religaheart ROT", Arch. Matall. Mater., 60, 3 (2015). CrossRef
  9. S. S. Patil, A. D. Shaligram, "Analytical study of performance variations of fiber optic micro-displacement sensor configurations using mathematical modeling and an experimental test jig", IJSER, 4, 11 (2013). DirectLink
  10. Philtec Application Note, 6, 25 (2017) CrossRef

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Published

2020-07-01

How to Cite

[1]
M. Gawlikowski, P. Kurtyka, J. Zalewski, M. Zarwańska-Doffek, and A. Kapis, “Methodology for measuring the gap size using a fiber-optic displacement sensor exemplified by a centrifugal blood pump”, Photonics Lett. Pol., vol. 12, no. 2, pp. 46–48, Jul. 2020.

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Articles