A wirelessly powered microspectrometer for neural probe-pin device

Sang H. Choi; Min Hyuck Kim; Kyo D. Song; Hargsoon Yoon; Uhn Lee

doi:10.1117/12.2202203

22 December 2015 A wirelessly powered microspectrometer for neural probe-pin device

Sang H. Choi, Min Hyuck Kim, Kyo D. Song, Hargsoon Yoon, Uhn Lee

Proceedings Volume 9668, Micro+Nano Materials, Devices, and Systems; 96683Z (2015) https://doi.org/10.1117/12.2202203
Event: SPIE Micro+Nano Materials, Devices, and Applications, 2015, Sydney, New South Wales, Australia

Abstract

Treatment of neurological anomalies, whether done invasively or not, places stringent demands on device functionality and size. We have developed a micro-spectrometer for use as an implantable neural probe to monitor neuro-chemistry in synapses. The micro-spectrometer, based on a NASA-invented miniature Fresnel grating, is capable of differentiating the emission spectra from various brain tissues. The micro-spectrometer meets the size requirements, and is able to probe the neuro-chemistry and suppression voltage typically associated with a neural anomaly. This neural probe-pin device (PPD) is equipped with wireless power technology (WPT) to enable operation in a continuous manner without requiring an implanted battery. The implanted neural PPD, together with a neural electronics interface and WPT, enable real-time measurement and control/feedback for remediation of neural anomalies. The design and performance of the combined PPD/WPT device for monitoring dopamine in a rat brain will be presented to demonstrate the current level of development. Future work on this device will involve the addition of an embedded expert system capable of performing semi-autonomous management of neural functions through a routine of sensing, processing, and control.

Citation Download Citation

Sang H. Choi, Min Hyuck Kim, Kyo D. Song, Hargsoon Yoon, and Uhn Lee "A wirelessly powered microspectrometer for neural probe-pin device", Proc. SPIE 9668, Micro+Nano Materials, Devices, and Systems, 96683Z (22 December 2015); https://doi.org/10.1117/12.2202203

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