Design and Optimization of Ultrasonic Links With Phased Arrays for Wireless Power Transmission to Biomedical Implants

Kashani, Zeinab; Ilham, Sheikh Jawad; Kiani, Mehdi

doi:10.1109/tbcas.2022.3140591

Cited by 23 publications

(10 citation statements)

References 45 publications

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“…Nevertheless, the optimization of wireless brain implant technology faces several hurdles. Current wireless technologies, such as near-field communication (NFC), inductive couplings, ultrasonic communication, Bluetooth, and other radio frequency (RF) communications, often require an additional external device, adding complexity and restricting mobility. A promising direction to overcome the power supply challenge for these implants is the development and integration of miniaturized biofuel and ultrasound energy harvesting devices. ,− These cells aim to power injectable neural electrodes independently from external power sources, eliminating the reliance on such sources.…”

Section: How Can Injectable Mesh Electronics Be Integrated For Wirele...mentioning

confidence: 99%

Injectable Fluorescent Neural Interfaces for Cell-Specific Stimulating and Imaging

Xu,

Xiao,

Manshaii

et al. 2024

Nano Lett.

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Building on current explorations in chronic optical neural interfaces, it is essential to address the risk of photothermal damage in traditional optogenetics. By focusing on calcium fluorescence for imaging rather than stimulation, injectable fluorescent neural interfaces significantly minimize photothermal damage and improve the accuracy of neuronal imaging. Key advancements including the use of injectable microelectronics for targeted electrical stimulation and their integration with cellspecific genetically encoded calcium indicators have been discussed. These injectable electronics that allow for posttreatment retrieval offer a minimally invasive solution, enhancing both usability and reliability. Furthermore, the integration of genetically encoded fluorescent calcium indicators with injectable bioelectronics enables precise neuronal recording and imaging of individual neurons. This shift not only minimizes risks such as photothermal conversion but also boosts safety, specificity, and effectiveness of neural imaging. Embracing these advancements represents a significant leap forward in biomedical engineering and neuroscience, paving the way for advanced brain−machine interfaces.

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Section: How Can Injectable Mesh Electronics Be Integrated For Wirele...mentioning

confidence: 99%

Injectable Fluorescent Neural Interfaces for Cell-Specific Stimulating and Imaging

Xu,

Xiao,

Manshaii

et al. 2024

Nano Lett.

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“…That design does not require a DC bias or a permanent charge in which a 1-D lumped parameter model was used. Another study considered the Rx implanted in their proposed WPT system [57]. Figure 25 shows the overall schematic of the phased array design with a conceptual beam shape, including near-and far-field zones, which can be operated at 1.1 MHz with the overall output power and transfer efficiency of around 6 mW and 0.14%, respectively.…”

Section: Steel Intermediate Coilsmentioning

confidence: 99%

“…Presenting highly efficient power transfer. [57] Presenting the theory and design methodology of ultrasound WPT system.…”

Section: Ref Scopementioning

confidence: 99%

A Literature Survey with the Focus on Magnetically Coupled Wireless Power Transfer Systems Developed for Engineering and Biomedical Applications

2023

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Wireless power transfer (WPT) is the transmission of electrical energy to other external/internal devices without the need for wire connection. Such a system is useful to power electrical devices as a promising technology for various emerging applications. The implementation of devices integrated with WPT alters the existing technologies and enhance the theoretical concept for future works. Over the last decade, various studies have been conducted on the applications of magnetically coupled WPT systems, where a general overview over such devices would be beneficial. Hence, this paper presents a comprehensive review over various WPT systems developed for commercially existing applications. The importance of WPT systems was first reported from the engineering point of view, followed by their uses in biomedical devices.

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“…The far-field system of WPT such as optical coupling with more than 500mm distance transmission [25]. The non-EM energy technique is acoustic-based WPT [26]. In this review paper by using tables, we will present many challenges and characteristics of the rectenna design such as the compact size of the IMDs receiver, the distance of the WPT, Power conversion efficiency (PCE), power gain, and tissue safety in the body.…”

Section: Introductionmentioning

confidence: 99%

A Review of Miniaturized Advanced IC Rectenna for Energy Harvesting Applications

Hussein¹,

Khalid²

2023

(AREJ)

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This article presents a review of different types of miniaturized rectenna integrated circuits IC used for energy harvesting applications such as medical applications. The rectenna design consists of two basic components: an embedded antenna that collects radio-frequency RF energy from the surrounding environment, and the rectifier circuit that converts AC-RF energy values into DC voltage for usage in low-power electronics devices such as implantable medical devices (IMDs). Microwave Schottky diodes HSMS-285x and SMS-763x series are used as a voltage doubler rectifier with an implanted antenna to improve conversion efficiency and the output voltage at a given input power and appropriate load.There are many challenges in the implantable rectenna IC design such as biocompatibility, miniaturization, patient safety, compact size, resonant frequency, bandwidth, radiation efficiency, and insensitivity to detuning. This review article summarizes the overall rectenna research carried out for new different design strategies in implant medical applications that operated at industrial scientific, and medical (ISM) bands such as 2.45GHz and 5.8GHz.

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Design and Optimization of Ultrasonic Links With Phased Arrays for Wireless Power Transmission to Biomedical Implants

Cited by 23 publications

References 45 publications

Injectable Fluorescent Neural Interfaces for Cell-Specific Stimulating and Imaging

Injectable Fluorescent Neural Interfaces for Cell-Specific Stimulating and Imaging

A Literature Survey with the Focus on Magnetically Coupled Wireless Power Transfer Systems Developed for Engineering and Biomedical Applications

A Review of Miniaturized Advanced IC Rectenna for Energy Harvesting Applications

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