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

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

454

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.745945

Filename

745945