Selective ENG recordings using a multi-contact cuff electrode

Stéphane Bonnet (1) , Christophe Rubeck (1) , Vincent Agache (2) , Alain Bourgerette (1) , Olivier Fuchs (1) , Sadok Gharbi (1) , Fabien Sauter-Starace (1) , Paweł Maciejasz (3) , Jean-Louis Divoux (4) , Nolwen Bourquin (4) , Christine Henry (5) , Sandrine Maubert (1)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 DTBS - Département Microtechnologies pour la Biologie et la Santé
3 DEMAR - Artificial movement and gait restoration
4 AXONIC - OBELIA dept
5 Sorin Group [Clamart]

This paper describes the design, microfabrication, characterization and experimental validation of a 6-contact cuff electrode embedded in a parylene-based flexible support. This type of electrode is well suited for both peripheral nerve recording and stimulation and offers improved spatial selectivity as compared to conventional ring electrodes. Both measured and modeled impedance spectra are detailed. An experimental validation is performed on an earthworm with both multi-contact cuff (MCC) electrode recording and ring stimulation electrodes. Single fiber action potentials, elicited by the electrical stimulation, are well discriminated on the 6 contacts. Spontaneous activity is also recorded with burst of spikes.

Domaines: Autre

Stéphane Bonnet, Christophe Rubeck, Vincent Agache, Alain Bourgerette, Olivier Fuchs, et al.. Selective ENG recordings using a multi-contact cuff electrode. NER: Neural Engineering, Nov 2013, San Diego, United States. , 6th IEEE EMBS International Conference on Neural Engineering, pp.923-926, 2013. ⟨lirmm-00924380⟩