Implantable Neuroamplifers for Electrocorticography Using Flexible and Biocompatible Technology

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.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Implantable Neuroamplifers for Electrocorticography Using Flexible and Biocompatible Technology ; volume:217 ; number:13 ; year:2020 ; extent:7
Physica status solidi / A. A, Applications and materials science ; 217, Heft 13 (2020) (gesamt 7)

Urheber
Marcoleta, Juan Pablo
Nogueira, Waldo
Yoma, Néstor Becerra
Wuth, Jorge
Jakimovski, Filip
Fuenzalida, Victor M.
Doll, Theodor

DOI
10.1002/pssa.201900830
URN
urn:nbn:de:101:1-2022062408105657994833
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:28 MESZ

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Beteiligte

  • Marcoleta, Juan Pablo
  • Nogueira, Waldo
  • Yoma, Néstor Becerra
  • Wuth, Jorge
  • Jakimovski, Filip
  • Fuenzalida, Victor M.
  • Doll, Theodor

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