Design, test and optimization of inductive coupled coils for implantable biomedical devices

Zhao, J., Ghannam, R. , Yuan, M., Tam, H., Imran, M. and Heidari, H. (2019) Design, test and optimization of inductive coupled coils for implantable biomedical devices. Journal of Low Power Electronics, 15(1), pp. 76-86. (doi: 10.1166/jolpe.2019.1597)

Abstract

Biomedical implant devices are fast becoming a growing part of the healthcare industry. Providing power to these devices in such a confined area is a critical challenge. Consequently, resonancebased wireless power delivery provides a harmless yet effective way for powering these implantable biomedical devices. This technique relies on transferring power via the inductive coupling technique. In this regard, optimizing the quality factor and matched resonant frequency is required to achieve high efficiency. However, the efficiency depends on the space available for the coil and the separation distance between the two coils. In our case, the minimum separation distance between the two coils needs to be at least 2 cm. Therefore, we demonstrate the design, simulation and experimental procedure of an optimized wireless power delivery system for bio-implantable applications with various considerations for size limitations. Our design delivers 68 mW output power to a 50-Ω load with an efficiency of 67% in vitro test and 74.8% in the FEM simulation.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Imran, Professor Muhammad and Ghannam, Dr Rami and Yuan, Miss Mengyao and Heidari, Professor Hadi and Zhao, Mr Jinwei
• Authors: Zhao, J., Ghannam, R., Yuan, M., Tam, H., Imran, M., and Heidari, H.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering; College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Journal of Low Power Electronics
• Publisher: American Scientific Publishers
• ISSN: 1546-1998
• ISSN (Online): 1546-2005

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
304896	0	EPSRC-IAA: Early Stage Commercialisation of a PET Imaging Agent for the Detection of Cardiovascular Disease and Cancer	Andrew Sutherland	Engineering and Physical Sciences Research Council (EPSRC)	EP/R511705/1	Chemistry