A Smart Neuroscience Platform with Wireless Power Transmission for Simultaneous Optogenetics and Electrophysiological Recording

Maghsoudloo, Esmaeel; Gagnon-Turcotte, Gabriel; Rezaei, Zahra; Gosselin, Benoît

doi:10.1109/iscas.2018.8351446

Cited by 10 publications

(10 citation statements)

References 13 publications

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“…The wirelessly-powered cage systems introduced in this section have multiple slanted Tx resonators wrapping around the cage [13,16,32,33]. The slanted Tx resonators help bend and direct the magnetic flux towards the Rx coil.…”

Section: Wirelessly-powered Cage Systems With Slanted Tx Resonatorsmentioning

confidence: 99%

“…The slanted Tx resonators, which direct the magnetic field to the mobile device, together with the CLPC can support sufficient and constant PDL up to 80-degree rotation. In Figure 17b,c, two similar wireless cage designs are presented [32,33]. In the wirelessly-powered cage system, shown in Figure 17b, two more Tx resonators, wrapping around the bottom and top rim of the cage, are added to enhance the homogenous distribution of the transmitted power in the z-direction [32].…”

Section: Wirelessly-powered Cage Systems With Slanted Tx Resonatorsmentioning

confidence: 99%

“…However, the Tx coil located at the top of the cage may block the line of view of the camera. The wireless cage design, shown in Figure 17c, has a similar Tx resonator configuration [33]. The Tx coil is formed by three identical coils connected in parallel and tiled at the bottom of the cage to make the transmitted power more evenly distributed in 3D.…”

Section: Wirelessly-powered Cage Systems With Slanted Tx Resonatorsmentioning

confidence: 99%

“…Such a novel Rx coil arrangement directs the transmitted EM field, which is already homogenized by the Tx resonators, towards the Rx coil at the bottom of the mobile device at any arbitrary orientations. [32], and (c) [33].…”

Section: Wirelessly-powered Cage Systems For Omnidirectional Power Trmentioning

confidence: 99%

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Wirelessly-Powered Cage Designs for Supporting Long-Term Experiments on Small Freely Behaving Animals in a Large Experimental Arena

Lee

Jia

2020

Electronics

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In modern implantable medical devices (IMDs), wireless power transmission (WPT) between inside and outside of the animal body is essential to power the IMD. Unlike conventional WPT, which transmits the wireless power only between fixed Tx and Rx coils, the wirelessly-powered cage system can wirelessly power the IMD implanted in a small animal subject while the animal freely moves inside the cage during the experiment. A few wirelessly-powered cage systems have been developed to either directly power the IMD or recharge batteries during the experiment. Since these systems adapted different power carrier frequencies, coil configurations, subject tracking techniques, and wireless powered area, it is important for designers to select suitable wirelessly-powered cage designs, considering the practical limitations in wirelessly powering the IMD, such as power transfer efficiency (PTE), power delivered to load (PDL), closed-loop power control (CLPC), scalability, spatial/angular misalignment, near-field data telemetry, and safety issues against various perturbations during the longitudinal animal experiment. In this article, we review the trend of state-of-the-art wirelessly-powered cage designs and practical considerations of relevant technologies for various IMD applications.

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Section: Wirelessly-powered Cage Systems With Slanted Tx Resonatorsmentioning

confidence: 99%

Section: Wirelessly-powered Cage Systems With Slanted Tx Resonatorsmentioning

confidence: 99%

Section: Wirelessly-powered Cage Systems With Slanted Tx Resonatorsmentioning

confidence: 99%

Section: Wirelessly-powered Cage Systems For Omnidirectional Power Trmentioning

confidence: 99%

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Wirelessly-Powered Cage Designs for Supporting Long-Term Experiments on Small Freely Behaving Animals in a Large Experimental Arena

Lee

Jia

2020

Electronics

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“…The resulting wireless optogenetics stimulation technologies have adopted two main configurations: (i) fullyimplantable devices that are based on LEDs and LEDs [29][30][31][32][33][34], and (ii) head-mountable devices, which mainly adopt one of the following configurations: LEDs [35][36][37][38], LEDs [12,15,[39][40][41][42][43], waveguide-coupled LED [28,[44][45][46][47][48][49] or waveguidecoupled LED [50][51][52]. Both approaches depend exclusively on LEDs, although they suffer from significant limitations.…”

Section: Introductionmentioning

confidence: 99%

A Wireless Head-Mountable Device With Tapered Optical Fiber-Coupled Laser Diode for Light Delivery in Deep Brain Regions

Emara

Pisanello

Sileo

et al. 2019

IEEE Trans. Biomed. Eng.

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Optogenetics sets new experimental paradigms that can reveal cell type-specific contributions on the neural basis of behavior. Since most of the available systems for this purpose are based on approaches that tether animals to a set of cables, recent research activities have been focused on minimizing external factors that can alter animal movements. Current wireless optogenetic systems are based on waveguide-coupled LED and implanted LEDs. However, each configuration separately suffers from significant limitations, such as low coupling efficiency, penetration depth and invasiveness of waveguide-coupled LED, and local heat generated by implanted LEDs. This work presents a novel wireless head-mountable stimulating system for a widevolume light delivery. The device couples the output of a semiconductor laser diode (LD) to a tapered optical fiber (TF) on a wireless platform. The LD-TF coupling was engineered by setting up far-field analysis, which allows a full exploitation of mode division demultiplexing properties of TFs. The output delivered light along the tapered segment is capable of stimulating structures of depths up to ~2mm. TFs are tapered to a gradual taper angle (Ψ~2° to Ψ~10°) that ends with a sharp tip (~500 nm) for smooth insertion and less invasiveness. Thus, the proposed system extends the capabilities of wireless optogenetic by offering a novel solution for wide volume light delivery in deep brain regions.

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Design Considerations for Implantable Neural Circuits and Systems

Hsu¹,

Hsieh²,

Chen³

2021

Handbook of Neuroengineering

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A Smart Neuroscience Platform with Wireless Power Transmission for Simultaneous Optogenetics and Electrophysiological Recording

Cited by 10 publications

References 13 publications

Wirelessly-Powered Cage Designs for Supporting Long-Term Experiments on Small Freely Behaving Animals in a Large Experimental Arena

Wirelessly-Powered Cage Designs for Supporting Long-Term Experiments on Small Freely Behaving Animals in a Large Experimental Arena

A Wireless Head-Mountable Device With Tapered Optical Fiber-Coupled Laser Diode for Light Delivery in Deep Brain Regions

Design Considerations for Implantable Neural Circuits and Systems

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