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Volume conduction for powering deeply implanted networks of wireless injectable medical devices: a numerical parametric analysis

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dc.contributor.author Tudela Pi, Marc
dc.contributor.author Minguillon, Jesus
dc.contributor.author Becerra Fajardo, Laura
dc.contributor.author Ivorra Cano, Antoni, 1974-
dc.date.accessioned 2022-06-27T06:31:43Z
dc.date.available 2022-06-27T06:31:43Z
dc.date.issued 2021
dc.identifier.citation Tudela-Pi M, Minguillon J, Becerra, Ivorra A. Volume conduction for powering deeply implanted networks of wireless injectable medical devices: a numerical parametric analysis. IEEE Access. 2021;9:100594-605. DOI: 10.1109/ACCESS.2021.3096729
dc.identifier.issn 2169-3536
dc.identifier.uri http://hdl.handle.net/10230/53596
dc.description.abstract The use of networks of wireless active implantable medical devices (AIMDs) could revolutionize the way that numerous severe illnesses are treated. However, the development of sub-mm AIMDs is hindered by the bulkiness and the transmission range that consolidated wireless power transfer (WPT) methods exhibit. The aim of this work is to numerically study and illustrate the potential of an innovative WPT technique based on volume conduction at high frequencies for powering AIMDs. In this technique, high frequency currents are coupled into the tissues through external electrodes, producing an electric field that can be partially picked-up by thin, flexible, and elongated implants. In the present study, the system formed by the external electrodes, the tissues and the implants was modeled as a two-port impedance network. The parameters of this model were obtained using a numerical solver based on the finite element method (fem). The model was used to determine the power delivered to the implants’ load (PDL) and the power transmission efficiency (PTE) of the system. The results allow the identification of the main features that influence the PDL and the PTE in a volume conduction scenario and demonstrate that volume conduction at high frequencies can be the basis for a non-focalized WPT method that can transfer powers above milliwatts to multiple mm-sized implants (<10 mm3 ) placed several centimeters (>3 cm) inside the tissues.
dc.description.sponsorship This work was supported by the European Research Council (ERC) through the European Union’s Horizon 2020 Research and Innovation Program under Grant 724244. The work of Antoni Ivorra was supported by Institució Catalana de Recerca i Estudis Avançats (ICREA) through the ICREA Academia Program.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartof IEEE Access. 2021;9:100594-605.
dc.rights This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.title Volume conduction for powering deeply implanted networks of wireless injectable medical devices: a numerical parametric analysis
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://doi.org/10.1109/ACCESS.2021.3096729
dc.subject.keyword Volume conduction
dc.subject.keyword active implants
dc.subject.keyword wireless power transmission
dc.subject.keyword WPT
dc.subject.keyword finite element analysis
dc.subject.keyword numerical models
dc.subject.keyword fem
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/724244
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/publishedVersion

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