Wireless Power Transfer and Telemetry for Implantable Bioelectronics

Implantable bioelectronic devices are becoming useful and prospective solutions for various diseases owing to their ability to monitor or manipulate body functions. However, conventional implantable devices (e.g., pacemaker and neurostimulator) are still bulky and rigid, which is mostly due to the e...

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Bibliographic Details
Published in:Advanced healthcare materials 2021-09, Vol.10 (17), p.e2100614-n/a
Main Authors: Yoo, Seungwon, Lee, Jonghun, Joo, Hyunwoo, Sunwoo, Sung‐Hyuk, Kim, Sanghoek, Kim, Dae‐Hyeong
Format: Article
Language:English
Subjects:
Biocompatibility
Bioelectricity
bioelectronics
Data transfer (computers)
Electronic implants
Energy storage
Epidermis
Human tissues
implantable devices
Information retrieval
Internal energy
Radio frequency
Softness
Telemetry
wireless power transfer
Wireless power transmission
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Summary:Implantable bioelectronic devices are becoming useful and prospective solutions for various diseases owing to their ability to monitor or manipulate body functions. However, conventional implantable devices (e.g., pacemaker and neurostimulator) are still bulky and rigid, which is mostly due to the energy storage component. In addition to mechanical mismatch between the bulky and rigid implantable device and the soft human tissue, another significant drawback is that the entire device should be surgically replaced once the initially stored energy is exhausted. Besides, retrieving physiological information across a closed epidermis is a tricky procedure. However, wireless interfaces for power and data transfer utilizing radio frequency (RF) microwave offer a promising solution for resolving such issues. While the RF interfacing devices for power and data transfer are extensively investigated and developed using conventional electronics, their application to implantable bioelectronics is still a challenge owing to the constraints and requirements of in vivo environments, such as mechanical softness, small module size, tissue attenuation, and biocompatibility. This work elucidates the recent advances in RF‐based power transfer and telemetry for implantable bioelectronics to tackle such challenges. This review covers the recent progresses in various radio‐frequency (RF)‐based wireless implantable devices. The studies highlight the significance and potential of the RF‐based wireless power transfer and telemetry schemes and the adoption of the soft materials and device designs for the development of sustainable and versatile implantable bioelectronics.
ISSN:2192-2640
2192-2659
DOI:10.1002/adhm.202100614