• DocumentCode
    1460774
  • Title

    Sensorless estimation of inlet pressure in implantable rotary blood pump for heart failure patients

  • Author

    Alomari, A.H. ; Savkin, Andrey V. ; Ayre, P.J. ; Lim, Eul-Gyoon ; Lovell, Nigel H.

  • Author_Institution
    Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales (UNSW), Sydney, NSW, Australia
  • Volume
    46
  • Issue
    7
  • fYear
    2010
  • Firstpage
    481
  • Lastpage
    483
  • Abstract
    A dynamical model for mean inlet pressure estimation in an implantable rotary blood pump is proposed. Noninvasive measurements of pump motor power (P), pulse width modulation, and impeller rotational speed (??) were used as inputs to the model. Linear regression analysis between estimated and measured inlet pressures obtained from in vivo greyhound data (N = 3) resulted in a highly significant correlation (R 2 = 0.957) and a mean absolute error (e) of 2.292 mmHg. Furthermore, the proposed model was stable which allowed accurate study and estimation of the transient response and the dynamics of the pump inlet pressure (P in).
  • Keywords
    biomedical measurement; blood; cardiology; prosthetics; pumps; regression analysis; heart failure patient; impeller rotational speed; implantable rotary blood pump; inlet pressure estimation; linear regression analysis; noninvasive measurements; pulse width modulation; pump motor power; sensorless estimation;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2010.3028
  • Filename
    5442103
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1460774