Transcutaneous capacitive wireless power transfer (C-WPT) for biomedical implants
@article{Erfani2017TranscutaneousCW, title={Transcutaneous capacitive wireless power transfer (C-WPT) for biomedical implants}, author={Reza Erfani and Fatemeh Marefat and Amir Masoud Sodagar and Pedram Mohseni}, journal={2017 IEEE International Symposium on Circuits and Systems (ISCAS)}, year={2017}, pages={1-4} }
This paper reports on the implementation of a transcutaneous capacitive wireless power transfer (C-WPT) strategy for biomedical implants. The approach is based upon a series resonant converter in which the tank capacitors are replaced with a capacitive link comprising two pairs of coated parallel plates aligned around the tissue as the dielectric material. Miniaturized printed-circuit boards are developed that incorporate all requisite circuitry on the front-side of transmitter (TX) and…
20 Citations
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- Engineering2018 IEEE Biomedical Circuits and Systems Conference (BioCAS)
- 2018
This work specifically focuses on investigating the optimal range of link operation frequency, f<inf>op</inf>, that maximizes the power transfer efficiency (PTE) and power delivered to the load (PDL) parameters under biosafety constraints imposed by specific absorption rate and electric-field strength in living tissue.
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- 2018
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- Computer Science2018 IEEE Biomedical Circuits and Systems Conference (BioCAS)
- 2018
An experimental working bench-top model for the first time of a wireless powering scheme for bio-medical implants through a 2-contact resonant capacitive link where data has been transmitted simultaneously in a hybrid amplitude-frequency shift keying (ASK-FSK) technique over the same channel is proposed.
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- EngineeringIEEE Transactions on Circuits and Systems II: Express Briefs
- 2018
The modeling and experimental validation of a capacitive link as an emerging strategy for wireless power transfer to biomedical implants and in very good agreement with simulation results from the related circuit model is reported.
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- 2020
Flexible, conformable, and biocompatible patches are adopted with an automatic resonant frequency calibration technique for the first time and a reliable power and data transfer scheme for biomedical implants through a resonant capacitive link is proposed and demonstrated.
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- EngineeringInternational Journal of Power Electronics and Drive Systems (IJPEDS)
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- EngineeringbioRxiv
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It is demonstrated for the first time in humans that innocuous and imperceptible HF current bursts that flow through the tissues by volume conduction can be used to wirelessly power threadlike eMIs, overcoming the limitations of existing WPT methods in terms of minimal invasiveness and usability.
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- MedicinebioRxiv
- 2022
The results show the feasibility of manufacturing threadlike wireless addressable neuromuscular stimulators by using fabrication techniques and materials well established for chronic electronic implants, paving the way to the clinical development of advanced motor neuroprostheses formed by dense networks of such wireless devices.
On-chip Energy Harvesting for Implantable Medical Devices
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So far hidden potential of fully integrated WPT systems, where both near-field and farfield approaches are included are discussed and the discussion is extended to a principle of power transfer efficiency (PTE) maximization through approaches such as matching and finding the optimal source/load together with rectifying and regulating issues.
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