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Vision sensor for precise control of the pneumatic heart assist pump
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Paper Abstract

The pneumatic type heart assist pump has a pneumatic chamber and a blood chamber separated by a flaccid membrane. By compressing and sucking the gas into the pneumatic chamber, the membrane shape changes as a result the stroke volume will also change. Our task is to determine the real time stroke volume. The idea presented in the work uses shape reconstruction of the membrane created on the basis of image analysis to calculate the stroke volume. This is made possible by equipping the pump with a wide-angle camera and using the DFD method to visually measure the distance between the camera and the characteristic points selected on the surface of the membrane. A new technique was developed based on this for determining the stroke volume of the pneumatic heart assist pump. The work presents a vision sensor for precise control of the pneumatic heart assist pump, as well as results obtained during experimental research.

Paper Details

Date Published: 27 February 2019
PDF: 9 pages
Proc. SPIE 10872, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX, 108720C (27 February 2019); doi: 10.1117/12.2509961
Show Author Affiliations
Krzysztof Murawski, Wojskowa Akademia Techniczna im. Jaroslawa Dabrowskiego (Poland)
Wojciech Sulej, Wojskowa Akademia Techniczna im. Jaroslawa Dabrowskiego (Poland)


Published in SPIE Proceedings Vol. 10872:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIX
Israel Gannot, Editor(s)

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