Calculation of Lumped Parameter of Two-Port Network for Volume Conduction Energy Delivery

Abstract:

Skin electrode unit is the channel through which energy can be transferred to the implanted device by volume conduction. The unit can be equivalent to lumped circuit, but so far there are no appropriate calculation methods of these circuit parameters. In this paper, the field- circuit coupling model of skin electrode unit is established to compute the voltages and currents at electrode ports, then their amplitudes and phases are extracted by using all phase FFT spectrum analysis, at last the equivalent impedance parameters of the skin electrode unit are calculated by the application of variable load method. These impedance parameters can be used for optimizing the volume conduction energy delivery system.

• Periodical: Advanced Materials Research (Volume 680)
• Pages: 649-655
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.680.649
• Online since: April 2013
• Authors: Zhi De Tang, Xiu Fa Chen
• Keywords: Energy Delivery, Impedance Parameter, Multi-Physical Field, Two-Port Network, Variable Load Method, Volume Conduction

References

[1] M. G. Sun, G. A. Justin, P. A. Roche, et al. Passing Data and Supplying Power to Neural Implants, IEEE Engineering in Medicine and Biology Magazine, vol. 25, no. 5, pp.39-46, (2006).

DOI: 10.1109/memb.2006.1705746

[2] Z. D. Tang, C. X. Sun, R. J. Sclabassi, et al. Transcutaneous battery recharging by volume conduction and its circuit modeling, in Proc. IEEE 28th Engineering in Medicine and Biology Society Conf., Sep. 2006, pp.644-647.

DOI: 10.1109/iembs.2006.259702

[3] L. M. Zhang, Y. P. Zhao, A. L. Deng, Electromagnetic Fields Theory and Circuit Theory in the Analysis of Electromagnetic Fields Problems, Modern Radar, vol. 29, no. 2, pp.66-79, (2007).