Implantable neuroamplifers for electrocorticography using flexible and biocompatible technology
Author
dc.contributor.author
Marcoleta, Juan Pablo
Author
dc.contributor.author
Nogueira, Waldo
Author
dc.contributor.author
Becerra Yoma, Néstor
Author
dc.contributor.author
Wuth, Jorge
Author
dc.contributor.author
Jakimovski, Filip
Author
dc.contributor.author
Fuenzalida, Víctor M.
Author
dc.contributor.author
Doll, Theodor
Admission date
dc.date.accessioned
2020-06-08T22:50:21Z
Available date
dc.date.available
2020-06-08T22:50:21Z
Publication date
dc.date.issued
2020
Cita de ítem
dc.identifier.citation
Phys. Status Solidi A 2020, 1900830
es_ES
Identifier
dc.identifier.other
10.1002/pssa.201900830
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/175313
Abstract
dc.description.abstract
Brain signals such as electroencephalography (EEG) and electrocorticography (ECoG) are used to diagnose epilepsy. ECoG signals are small and therefore require large amplification while keeping the recording electronics small enough to adapt to the surface of the brain. Moreover, the components have to be of low power to reduce the risk of brain damage while recording the brain. Herein, a neuroamplifier that is integrated in an ECoG is described. The amplifier, in combination with a novel multiplexing system that reduces the number of required amplifiers and ensures the flexibility of the ECoG, achieves the desired signal-to-noise ratio while reducing power consumption. The feasibility of the proposed design is validated though electronic simulations for different input signals, analyzing the actual amplification achieved and the response times. Moreover the circuit is implemented and real measurements are provided validating the simulations.