Effects of Coaxial-Lateral and Coaxial-Angular Displacements on Link Efficiency of a Wirelessly Powered Optogenetic Implant: Design, Modeling, and Experimental Validation

Biswas, Dipon K.; Mahbub, Ifana

doi:10.1109/jerm.2019.2909391

Cited by 9 publications

(2 citation statements)

References 18 publications

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“…Variation in the transmitter and receiver gap affects the power transfer efficiency, especially for miniaturized WPT systems. Biswas et al [105] designed and fabricated an inductive coupling system that works at 7 MHz to study the effect of different displacements on the power transfer efficiency for the optogenetic implant and validated the result experimentally and with Ansys HFSS simulation software for different alignments. They found that for the worst scenario, the simulated and measured efficiency was 0.5% when the transfer distance was 10 mm coaxial and 15 • angular misalignment.…”

Section: Optogenetic Stimulationmentioning

confidence: 99%

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Near‐field wireless power transfer used in biomedical implants: A comprehensive review

Mahmood

Gharghan

Soliman

2022

IET Power Electronics

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Wireless power transfer (WPT) techniques have been utilized in various biomedical applications to overcome the challenges of battery capacity and lifetime, and high-cost surgical interventions, using biomedical implants (BMIs) and biomedical sensors (BMSs), including deep brain stimulators, capsule endoscopes, pacemakers, and cardiac monitoring sensors. In this article, near-field WPT methods in BMIs and BMSs, including magnetic resonator coupling (MRC), inductive coupling (IC), and capacitive coupling (CC), are reviewed, and some biomedical applications of these methods are highlighted. The applications of WPT have been explored in recent years to enhance the major performance metrics of BMIs. The main topologies of MRC-WPT are presented, and the main mathematical models related to each type were extracted from previous studies and detailed here. Additionally, the main performance metrics and results achieved, along with their suggested biomedical applications, are summarized in a comparison table. Some challenges and limitations of using WPT in the biomedical field and suggestions for improving the efficiency of WPT for biomedical applications are also discussed. Furthermore, future trends in WPT-based BMIs are also highlighted.

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Section: Optogenetic Stimulationmentioning

confidence: 99%

“…FIGURE 10Implantation devices for optogenetic stimulation wireless power transfer (WPT). Wireless neuroscience platform proposed in[104], (b) view for optogenetic WPT proposed by Biswas et al[105], c) prototype of a system for a very small implant suggested in and (d) in vitro measurement setup in[106] …”

mentioning

confidence: 99%