Title :
Open-loop analysis of transfer characteristics from blood pressure to heart rate using effectively total artificial heart
Author :
Tanaka, A. ; Yoshizawa, Makoto ; Nomura, Takashi ; Abe, Ken-ichi ; Takeda, Hiroshi ; Yambe, Tomoyuki ; Nitta, Shin-ichi ; Abe, Yusuke ; Chinzei, Tsuneo ; Imachi, Kou
Author_Institution :
Inst. of Dev., Aging & Cancer, Tohoku Univ., Sendai, Japan
fDate :
29 Oct-1 Nov 1998
Abstract :
It is desirable that the dynamic behavior of the drive rate of the artificial heart can be as similar as possible to that of the recipient´s heart rate (HR) before implantation. This requires a model which can simulate the behavior of HR on the basis of only information measured with the limited number of approvable sensors. This paper has given a linear time series model for explaining the behavior of HR only with aortic pressure (AOP) and right atrial pressure (RAP). This could be obtained from open-loop analysis using effectively total artificial heart which was introduced for measuring HR in vivo and for eliminating its effect on blood pressure
Keywords :
artificial organs; biocontrol; cardiovascular system; haemodynamics; physiological models; time series; transfer functions; aortic pressure; blood pressure; blood pumps; circulatory control system; cross correlation coefficient; effectively total artificial heart; heart rate; linear time series model; open-loop analysis; right atrial pressure; simulation model; transfer characteristics; vascular resistance; Animals; Artificial heart; Blood flow; Blood pressure; Cardiology; Electrocardiography; Heart rate; In vivo; Pressure measurement; Transducers;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.745945
