Bringing sensation to prosthetic hands—chronic assessment of implanted thin-film electrodes in humans - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Article Dans Une Revue npj Flexible eletronics Année : 2023

Bringing sensation to prosthetic hands—chronic assessment of implanted thin-film electrodes in humans

Jean-Louis Divoux
  • Fonction : Auteur
Silvestro Micera

Résumé

Abstract Direct stimulation of peripheral nerves with implantable electrodes successfully provided sensory feedback to amputees while using hand prostheses. Longevity of the electrodes is key to success, which we have improved for the polyimide-based transverse intrafascicular multichannel electrode (TIME). The TIMEs were implanted in the median and ulnar nerves of three trans-radial amputees for up to six months. We present a comprehensive assessment of the electrical properties of the thin-film metallization as well as material status post explantationem . The TIMEs stayed within the electrochemical safe limits while enabling consistent and precise amplitude modulation. This lead to a reliable performance in terms of eliciting sensation. No signs of corrosion or morphological change to the thin-film metallization of the probes was observed by means of electrochemical and optical analysis. The presented longevity demonstrates that thin-film electrodes are applicable in permanent implant systems.
Fichier principal
Vignette du fichier
Cvancara_et_al_npj_flexible_electronics_2023.pdf (4.62 Mo) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-04296540 , version 1 (20-11-2023)

Licence

Paternité

Identifiants

Citer

Paul Čvančara, Giacomo Valle, Matthias Müller, Inga Bartels, Thomas Guiho, et al.. Bringing sensation to prosthetic hands—chronic assessment of implanted thin-film electrodes in humans. npj Flexible eletronics, 2023, 7 (1), pp.51. ⟨10.1038/s41528-023-00284-x⟩. ⟨hal-04296540⟩
149 Consultations
8 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More