Resonant frequency control for artificial heart using online parameter identification

Artificial Organs
Ryo KosakaTatsuo Tsutsui

Abstract

To develop effective medical care and therapeutic control using an artificial heart, a new control method has been developed. This new method can control the artificial heart effectively and can adapt to internal physiological behavior using measured physiological data; aortic pressure, aortic flow, and pump flow. This method consists of first, a second-order physiological model, which represents the internal physiological behavior by a mathematical equation; and second, an estimation method, which can identify the physiological parameters; aortic inertia, aortic resistance, aortic compliance, and peripheral resistance by a parameter identification method. It can then calculate the resonant frequency as the control signal for the artificial heart from the identified physiological model. To confirm the effectiveness, the proposed method was evaluated in a computer simulation study. This evaluation showed that the new method could estimate the physiological parameters and the resonant frequency within a 10% error. The impedance of the systemic circulation could also be reduced by this method.

References

Dec 11, 1999·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·M K Sharp, R K Dharmalingham
Feb 10, 2000·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·C NojiirT Akutsu
Dec 4, 2002·Artificial Organs·Stijn VandenberghePascal R Verdonck
Jun 7, 2003·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Hiromasa YamagishiTatsuo Tsutsui
May 1, 1996·Artificial Organs·Yukihiko NoséTadashi Nakazawa

❮ Previous
Next ❯

Citations

Feb 24, 2005·Artificial Organs·Paul S Malchesky
Feb 14, 2008·Artificial Organs·Ryo KosakaTatsuo Tsutsui
Mar 10, 2016·ASAIO Journal : a Peer-reviewed Journal of the American Society for Artificial Internal Organs·Xiaoqi ZhuangHuan Huang

❮ Previous
Next ❯

Related Concepts

Related Feeds

Artificial Heart & Ventricular Assist Devices

Total artificial hearts (TAH) and ventricular assist devices (VADs) provide cardiac support for patients with end-stage heart disease and have significantly improved the survival of these patients. Discover the latest research on Artificial Heart and Ventricular Assist Devices here.

© 2021 Meta ULC. All rights reserved