TY - JOUR
T1 - Non-invasive estimation and control of inlet pressure in an implantable rotary blood pump for heart failure patients
AU - AlOmari, Abdul-Hakeem H
AU - Savkin, Andrey V
AU - Ayre, P J
AU - Lim, E
AU - Mason, David G
AU - Salamonsen, Robert Francis
AU - Fraser, John
AU - Lovell, Nigel H
PY - 2011
Y1 - 2011
N2 - We propose a dynamical model for mean inlet pressure estimation in an
implantable rotary blood pump during the diastolic period. Non-invasive
measurements of pump impeller rotational speed (I?), motor power (P), and
pulse width modulation signal acquired from the pump controller were used as
inputs to the model. The model was validated over a wide range of speed ramp studies, including (i) healthy (C1), variations in (ii) heart contractility (C2); (iii) afterload (C2, C3, C4), and (iv) preload (C5, C6, C7).
AB - We propose a dynamical model for mean inlet pressure estimation in an
implantable rotary blood pump during the diastolic period. Non-invasive
measurements of pump impeller rotational speed (I?), motor power (P), and
pulse width modulation signal acquired from the pump controller were used as
inputs to the model. The model was validated over a wide range of speed ramp studies, including (i) healthy (C1), variations in (ii) heart contractility (C2); (iii) afterload (C2, C3, C4), and (iv) preload (C5, C6, C7).
UR - http://iopscience.iop.org/0967-3334/32/8/004/pdf/0967-3334_32_8_004.pdf
U2 - 10.1088/0967-3334/32/8/004
DO - 10.1088/0967-3334/32/8/004
M3 - Article
VL - 32
SP - 1035
EP - 1060
JO - Physiological Measurement
JF - Physiological Measurement
SN - 0967-3334
IS - 8
ER -