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.

Full Text: PDF

References
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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.

Issue

Vol. 12 No. 2 (2020)

Section

Articles

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