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Noninvasive Monitoring of Rotary Blood Pumps: Necessity, Possibilities, and Limitations
Author(s) -
Schima Heinrich,
Trubel Wolfgang,
Moritz Anton,
Wieselthaler Georg,
Stohr Hans G.,
Thoma Herwig,
Losert Udo,
Wolner Ernst
Publication year - 1992
Publication title -
artificial organs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 76
eISSN - 1525-1594
pISSN - 0160-564X
DOI - 10.1111/j.1525-1594.1992.tb00293.x
Subject(s) - mechanism (biology) , cannula , computer science , inflow , selection (genetic algorithm) , risk analysis (engineering) , engineering , control engineering , medicine , surgery , artificial intelligence , geology , philosophy , epistemology , oceanography
Although rotary blood pumps do not contain an inherent mechanism for adaptation to physiological flow necessities, hitherto only a few efforts have been made to obtain robust monitoring and control methods. This paper discusses the necessity of noninvasive monitoring of such pumps and the crucial points of sensor selection and development. A strategy of monitoring atrial pressure out of the data obtained by the collapse of the atrial wall around the inflow cannula and initial results on animal tests and computer simulation of this method are discussed. This approach might lead to reliable and demand‐responsive controllers, if some basic criteria are fulfilled.