A brain implantable microsystem with hybrid RF/IR telemetry for advanced neuroengineering applications
| Autor: | Yoon-Kyu Song, William R. Patterson, Christopher W. Bull, David A. Borton, Yanqiu Li, Arto V. Nurmikko, John D. Simeral, John P. Donoghue |
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| Rok vydání: | 2007 |
| Předmět: |
Cerebral Cortex
Materials science Clock signal Preamplifier Infrared Rays Polymers Radio Waves Multielectrode array Neural engineering Prostheses and Implants Multiplexing Liquid Crystals Rats Microelectrode Microsystem Electronic engineering Animals Humans Telemetry Brain–computer interface Signal Transduction |
| Zdroj: | Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference. 2007 |
| ISSN: | 2375-7477 |
| Popis: | A prototype cortical neural interface microsystem has been developed for brain implantable neuroengineering applications, featuring hybrid RF (radio- frequency) inductive and IR (infrared) optical telemetries. The system is aimed at neural recording from primates by converting cortical signals to a digital stream of IR light pulses, while acquiring clock signal and electrical power through RF induction. The implantable unit employs a flexible LCP (liquid crystal polymer) substrate for integration of analog, digital, and optoelectronic components, while adapting to the anatomical and physiological constraints of the environment. An ultra-low power analog CMOS chip, which includes preamplifier and multiplexing circuitry, is directly flip-chip bonded to the microelectrode array to form the immediate cortical neuroprobe device. A 16-channel version of the probe has been tested in various in-vivo animal experiments, including measurements of neural activity in somatosensory cortex of a rat. |
| Databáze: | OpenAIRE |
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