Noninvasive flow estimation of a rotary ventricular assist device

Yih Choung Yu, Kirk A. Lehmann, John Chiasson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An estimator identifying the flow rate through a rotary blood pump was developed. This estimation algorithm uses the pump current and speed signals to estimate the blood flow rate through the pump. The algorithm was derived based on the force balance between the electric torque generated by the motor and the load torque, including the mechanical losses. The corresponding estimator parameters were identified using experimental data in the laboratory. The estimator performed well in mock circulatory loop experiments simulating different physiologic conditions. This algorithm will be implemented in a single board computer to estimate the flow rate of the rotary pump in an implantable left ventricular assist device without invasive sensors.

Original languageEnglish
Title of host publicationIFAC Proceedings Volumes (IFAC-PapersOnline)
EditorsGabriel Ferrate, Eduardo F. Camacho, Luis Basanez, Juan. A. de la Puente
Pages205-210
Number of pages6
Edition1
DOIs
StatePublished - 2002
Event15th World Congress of the International Federation of Automatic Control, 2002 - Barcelona, Spain
Duration: 21 Jul 200226 Jul 2002

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
Number1
Volume15
ISSN (Print)1474-6670

Conference

Conference15th World Congress of the International Federation of Automatic Control, 2002
Country/TerritorySpain
CityBarcelona
Period21/07/0226/07/02

Keywords

  • Biomedical system
  • Estimation algorithm
  • Medical application

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