Powering Implanted Devices Wirelessly Using Spider-Web Coil

Amal Ibrahim Mahmood; Sadik Kamel Gharghan; Mohamed A.A. Eldosoky; Ahmed M. Soliman

doi:10.51173/jt.v5i4.1650

Authors

Amal Ibrahim Mahmood Biomedical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Cairo, Egypt
Sadik Kamel Gharghan Electrical Engineering Technical College-Baghdad, Middle Technical University, Baghdad, Iraq
Mohamed A.A. Eldosoky Biomedical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Cairo, Egypt
Ahmed M. Soliman Biomedical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Cairo, Egypt

DOI:

https://doi.org/10.51173/jt.v5i4.1650

Keywords:

Current, Implantable Biomedical, Magnetic Resonant Coupling, Spider-Web Coil, Wireless Power Transfer

Abstract

Implantable biomedical (IBM) systems and biomedical sensors can improve life quality, identify sickness, monitor biological signs, and replace the function of malfunctioning organs. However, these devices compel continuous battery power, which can be limited by the battery's capacity and lifetime, reducing the device's effectiveness. The wireless power transfer (WPT) technique, specifically magnetic resonator coupling (MRC), was utilized to address the limited battery capacity of IBMs. By using WPT–MRC, the device can obtain power wirelessly, thereby reducing the need for frequent battery replacements and increasing the device's potential. In this research, spider-web coil (S-WC) based MRC–WPT was conceived and carried out experimentally to enhance low-power IBM's rechargeable battery usage time. The presented S-WC–MRC–WPT design uses series–parallel (S–P) configuration to power the IBM. Both transmitter and receiver coils exhibit an operating oscillation frequency of 6.78 MHz. The paper reports on experiments performed in the laboratory to assess the performance of the proposed design in terms of output DC at three different resistive loads and transmission distances with alignment conditions among the receiver and the transmitter coils. Various transfer distances ranging from 10 to 100 mm were investigated to analyze the DC output current (Idc). Specifically, under a 30 V voltage source (VS) and a transfer distance of 20 mm, the DC output current was observed to be 330, 321, and 313 mA at resistive loads of 50, 100, and 150 Ω, respectively.

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Author Biographies

Amal Ibrahim Mahmood, Biomedical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Cairo, Egypt

Received the B.Sc. and M.Sc degree in Biomedical Engineering from Al-Nahrain University, Iraq, in 2005 and 2009, respectively. Her Ph.D. in Biomedical Engineering from the Faculty of Engineering, Helwan University, in 2023, Cairo, Egypt. She is also a Lecturer with the Department of Medical Instrumentation Techniques Engineering, Electrical Engineering Technical College, Middle Technical University (MTU), Baghdad, Iraq. Her research interests include optical fibers, biomedical sensors, and wireless power transfer applications in biomedical implants.

Sadik Kamel Gharghan, Electrical Engineering Technical College-Baghdad, Middle Technical University, Baghdad, Iraq

Sadik Kamel Gharghan received his BSc. in Electrical and Electronics Eng. from the University of Technology, Iraq in 1990, his MSc. in Communication Eng. from the University of Technology, Iraq in 2005, and his PhD. in Communication Eng. from the Universiti Kebangsaan Malaysia (UKM), Malaysia in 2016. He is with the Department of Medical Instrumentation Techniques Engineering, Electrical Engineering Technical College, Middle Technical University, Baghdad-Iraq, as Professor. His research interests include energy-efficient wireless sensor networks, biomedical sensors, microcontroller applications, WSN Localization based on artificial intelligence techniques and optimization algorithms, indoor and outdoor path loss modeling, wireless power transfer, drone-based monitoring applications, harvesting techniques, and jamming on direct sequence spread spectrum system.

Mohamed A.A. Eldosoky, Biomedical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Cairo, Egypt

Has BSc in Communication and Electronics from Helwan University in 1997. In 2000, he received his Master's in microstrip antennas. In 2005, he received his Ph.D. in Biomedical Engineering in the application of Ultrasonic Tomography. From 2005 to 2011, He became an assistant professor in Biomedical Engineering. Since 2016, He is a professor of biomedical Engineering at Helwan University. He has more than 70 publications in Biomedical Engineering.

Ahmed M. Soliman, Biomedical Engineering Department, Faculty of Engineering, Helwan University, Helwan, Cairo, Egypt

received the B.Sc. (with honours), M.S., and Ph.D. degrees in Biomedical Engineering from Helwan University, Cairo, Egypt, in 2003, 2010, and 2017, respectively. From 2007 to 2009, he received another M.S. degree in Biotechnology Engineering from University of Chemical Technology and Metallurgy (UCTM), Sofia, Bulgaria. From 2010 to 2012, he was an exchange PhD student in Biophotonics Group, Lund Medical Laser Centre, Atomic Physics Division, Physics Department, Faculty of Engineering (LTH), Lund University, Lund, Sweden. Currently, he is an Assistant Professor in Biomedical Engineering Department, Faculty of Engineering at Helwan, Helwan University, Cairo, Egypt. His main research interests are surface acoustic wave devices, microfluidics, biosensors, biotechnology engineering, medical optics, biomedical devices, neural network, deep learning, and modeling and simulations in biomedical applications. Also, he is a technical examiner member in Egyptian Patent Office.

Dr. Soliman received fellowships for an M.Sc. degree and an exchange Ph.D. from Erasmus Mundus External Cooperation Window (EMECW) Program in 2007 and 2010, respectively. Also, in 2012, he received a fellowship from Swedish Institute Scholarship for Ph.D. studies – Guest Scholarship Program, Sweden.

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