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AGILIS: Restoring functional grasping in individuals with tetraplegy using epineural electrodes

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Azevedo Coste, Christine | Fattal, Charles | William, Lucie | Fonseca, Lucas | Hiairrassary, Arthur | Andreu, David | Geffrier, Antoine | Teissier, Jacques | Guiraud, David

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International audience. We propose a novel approach to restore grasping in individuals with complete tetraplegia using epineural stimulation. Two multi-contact cuff electrodes were positioned around radial and median nerves in 2 volunteers during a surgery. The electrodes were maintained for 28 days. A user interface allowed the triggering of pre-programmed stimulation sequences on demand by executing stereotyped movements or by contracting voluntarily muscle on the contralateral shoulder. The stimulation selectivity obtained with the epineural electrodes was sufficient to obtain functional palmar and key pinch grip.

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