Near Field Wireless Powering of Deep Medical Implants

Tommaso Campi, Silvano Cruciani, Valerio De Santis, Francesca Maradei and Mauro Feliziani
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Tommaso Campi: Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, Italy
Silvano Cruciani: Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, Italy
Valerio De Santis: Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, Italy
Francesca Maradei: Department of Astronautics, Electrical and Energetics Engineering, Sapienza University of Rome, 00184 Rome, Italy
Mauro Feliziani: Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, Italy

Energies, 2019, vol. 12, issue 14, 1-18

Abstract: This study deals with the inductive-based wireless power transfer (WPT) technology applied to power a deep implant with no fixed position. The usage of a large primary coil is here proposed in order to obtain a nearly uniform magnetic field inside the human body at intermediate frequencies (IFs). A simple configuration of the primary coil, derived by the Helmholtz theory, is proposed. Then, a detailed analysis is carried out to assess the compliance with electromagnetic field (EMF) safety standards. General guidelines on the design of primary and secondary coils are provided for powering or charging a deep implant of cylindrical shape with or without metal housing. Finally, three different WPT coil demonstrators have been fabricated and tested. The obtained results have demonstrated the validity of the proposed technology.

Keywords: active implantable medical device (AIMD), deep implant; electromagnetic field (EMF) safety; inductive coupling; numerical dosimetry; wireless power transfer (WPT) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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