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Multi-contact epineural electrical stimulation to restore upper-limb functions

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

Edité par CCSD -

International audience. We investigated the feasibility of a novel approach aiming at restoring functional movements in completely paralyzed upper limbs using neural stimulation. Two multi-contact cuff electrodes were wrapped around radial and median nerves, unilaterally, in 2 individuals with complete high tetraplegia. Electrodes were maintained for 28 days. Advanced stimulation configurations were implemented to achieve selective activation of fascicles and elicit different graspings. A control interface was developed to allow users to pilot movements of their hand by triggering stimulation. Both participants were able to execute palmar and key pinch grasping during functional tasks.

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