Restoration of hand Functions in Tetraplegia through Selective Neural Electrical Stimulation
The AGILIS project aims to deliver an innovative implanted stimulation device to enable individuals with tetraplegia to use their hands for functional grasping, thereby increasing their autonomy. AGILIS was supported in 2019-2020 by EIT Health. 2 participants with complete tetrapegia were implanted with 2 epineural electrodes wrapped around median and radial nerves. The electrodes were maintained over 30 days. Both participants were able to grasp different objects.
INRIA has realized a series of videos to detail the different aspects of the project and obtained results:
2 multicontact epineural electrodes are wrapped around median and radial nerves just above the elbow. Electrical current profiles are programmed to selectively activate the different muscles of the forearm in order to obtain functional grasping gestures.
Presentations:
Christine Azevedo and Charles Fattal “Restaurer la préhension chez des personnes tétraplégiques complètes en utilisant la stimulation neuronale” Lyon Cyber Days, France – September 2021
Christine Azevedo “Restoring hand function for patients with complete tetraplegia. A new paradigm for both activation of paralyzed muscles and human machine interface.” Workshop AIST-LIRMM, Montpellier, France – November 2019
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