Transient response of remnant atrial heart rate to step changes in total artificial heart output

Nakamura, Makoto; Homma, Akihiko; Tatsumi, Eisuke; Uesho, K.; Taenaka, Yoshiyuki; Masuzawa, Toru

doi:10.1007/s100470200001

Cited by 1 publication

(1 citation statement)

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“…The design of such actuator should fulfill the volume and weight limitation with minimum energy loss and highest possible efficiency [2]. Moreover, it should be able to produce sufficient force to keep the blood circulation in correspondence to the nervous system commands [3]. Moreover, it should be fault tolerated to allow avoiding total breakdowns of the system, which is literally a matter of life or death.…”

Section: Introductionmentioning

confidence: 99%

Optimal Control of the Total Artificial Heart Using Halbach Array Linear Motor

ELGebaly

El-Nemr

Rashad

2013

ERJ. Engineering Research Journal

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The total artificial heart (TAH) is a mechanical device to be integrated with mammal"s blood flow dynamics to reinstate the functionality of biologically defected heart. In this paper, a Halbach array linear synchronous motor (HALSM) is used as a TAH. In this paper, the optimal control of the TAH that utilizes HALSM is studied to investigate its performance driving blood circulation. The optimal control system is relied on enabling the TAH of following certain pattern of blood flow. Analytical formulas for the HALSM developed force is presented depending on space harmonic analysis for the solution of the multilayer boundary field problem. Parameters of the formulas are obtained by means of magnetic field analysis using finite element method (FEM). The dynamic model of the blood circulation driven by HALSM is developed as a main step before control system design. PID controller is designed to control the TAH system. The genetic algorithm (GA) is used to obtain the optimized controller parameter .Simulated study is carried out for the TAH optimal control as integrated element in the blood cycle of an adult human. The obtained results, presents valuable guide for the design of TAH control system implementing Halbach linear motors.

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Section: Introductionmentioning

confidence: 99%