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Validation of the electromagnetic design of a total artificial heart under physical load conditions

Thomas Finocchiaro (Chair of Applied Medical Engineering, RWTH Aachen University, Aachen, Germany)
André Pohlmann (Institute of Electrical Machines, RWTH Aachen University, Aachen, Germany)
Elena Cuenca Navalon (Chair of Applied Medical Engineering, RWTH Aachen University, Aachen, Germany)
Marc Leßman (Institute of Electrical Machines, RWTH Aachen University, Aachen, Germany)
Ulrich Steinseifer (Chair of Applied Medical Engineering, RWTH Aachen University, Aachen, Germany)
Kay Hameyer (Institute of Electrical Machines, RWTH Aachen University, Aachen, Germany)

Abstract

Purpose

The purpose of this paper is to introduce the RWTH's total artificial heart, ReinHeart, focusing on the design of the unique drive system.

Design/methodology/approach

The force characteristics of the drive have been simulated in a finite element (FE) approach. Additionally the coppler losses within the motor coils have been predicted based on the FE‐simulation. Both results are compared to laboratory measurements of a prototype to validate the design.

Findings

The presented results show a good correlation between simulation and measurement and proof the applicability of the new design drive system.

Research limitations/implications

The used hydraulic models of the cardiovasular system used as a load for the device are not fully validated with data from living organisms. Therefore, further in vivo trials are needed.

Originality/value

The high force density of the drive allows its integration into a fully implantable, total artificial heart, in order to significantly improve durability. This hopefully will extend the indication for artificial hearts as alternatives to transplantation.

Keywords

Citation

Finocchiaro, T., Pohlmann, A., Cuenca Navalon, E., Leßman, M., Steinseifer, U. and Hameyer, K. (2012), "Validation of the electromagnetic design of a total artificial heart under physical load conditions", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 31 No. 4, pp. 1046-1054. https://doi.org/10.1108/03321641211227285

Publisher

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Emerald Group Publishing Limited

Copyright © 2012, Emerald Group Publishing Limited