A Muscle-First, Electromechanical Hybrid Gait Restoration System in People With Spinal Cord Injury

The development of a hybrid system for people with spinal cord injuries is described. The system includes implanted neural stimulation to activate the user's otherwise paralyzed muscles, an exoskeleton with electromechanical actuators at the hips and knees, and a sensory and control system that...

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Main Authors: Mark Nandor, Rudi Kobetic, Musa Audu, Ron Triolo, Roger Quinn
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-04-01
Series:Frontiers in Robotics and AI
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/frobt.2021.645588/full
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author Mark Nandor
Rudi Kobetic
Musa Audu
Musa Audu
Ron Triolo
Ron Triolo
Roger Quinn
Roger Quinn
author_facet Mark Nandor
Rudi Kobetic
Musa Audu
Musa Audu
Ron Triolo
Ron Triolo
Roger Quinn
Roger Quinn
author_sort Mark Nandor
collection DOAJ
description The development of a hybrid system for people with spinal cord injuries is described. The system includes implanted neural stimulation to activate the user's otherwise paralyzed muscles, an exoskeleton with electromechanical actuators at the hips and knees, and a sensory and control system that integrates both components. We are using a muscle-first approach: The person's muscles are the primary motivator for his/her joints and the motors provide power assistance. This design philosophy led to the development of high efficiency, low friction joint actuators, and feed-forward, burst-torque control. The system was tested with two participants with spinal cord injury (SCI) and unique implanted stimulation systems. Torque burst addition was found to increase gait speed. The system was found to satisfy the main design requirements as laid out at the outset.
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spelling doaj.art-11a48a5b6c1a45fb8c848795330d47982022-12-21T21:30:19ZengFrontiers Media S.A.Frontiers in Robotics and AI2296-91442021-04-01810.3389/frobt.2021.645588645588A Muscle-First, Electromechanical Hybrid Gait Restoration System in People With Spinal Cord InjuryMark Nandor0Rudi Kobetic1Musa Audu2Musa Audu3Ron Triolo4Ron Triolo5Roger Quinn6Roger Quinn7Department of Mechanical Engineering, Case Western Reserve University, Cleveland, OH, United StatesAdvanced Platform Technology Center, Louis Stokes VA Medical Center, Cleveland, OH, United StatesAdvanced Platform Technology Center, Louis Stokes VA Medical Center, Cleveland, OH, United StatesDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United StatesAdvanced Platform Technology Center, Louis Stokes VA Medical Center, Cleveland, OH, United StatesDepartment of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United StatesDepartment of Mechanical Engineering, Case Western Reserve University, Cleveland, OH, United StatesAdvanced Platform Technology Center, Louis Stokes VA Medical Center, Cleveland, OH, United StatesThe development of a hybrid system for people with spinal cord injuries is described. The system includes implanted neural stimulation to activate the user's otherwise paralyzed muscles, an exoskeleton with electromechanical actuators at the hips and knees, and a sensory and control system that integrates both components. We are using a muscle-first approach: The person's muscles are the primary motivator for his/her joints and the motors provide power assistance. This design philosophy led to the development of high efficiency, low friction joint actuators, and feed-forward, burst-torque control. The system was tested with two participants with spinal cord injury (SCI) and unique implanted stimulation systems. Torque burst addition was found to increase gait speed. The system was found to satisfy the main design requirements as laid out at the outset.https://www.frontiersin.org/articles/10.3389/frobt.2021.645588/fullrehabilitationgaitroboticsspinal cord injuryexoskeleton
spellingShingle Mark Nandor
Rudi Kobetic
Musa Audu
Musa Audu
Ron Triolo
Ron Triolo
Roger Quinn
Roger Quinn
A Muscle-First, Electromechanical Hybrid Gait Restoration System in People With Spinal Cord Injury
Frontiers in Robotics and AI
rehabilitation
gait
robotics
spinal cord injury
exoskeleton
title A Muscle-First, Electromechanical Hybrid Gait Restoration System in People With Spinal Cord Injury
title_full A Muscle-First, Electromechanical Hybrid Gait Restoration System in People With Spinal Cord Injury
title_fullStr A Muscle-First, Electromechanical Hybrid Gait Restoration System in People With Spinal Cord Injury
title_full_unstemmed A Muscle-First, Electromechanical Hybrid Gait Restoration System in People With Spinal Cord Injury
title_short A Muscle-First, Electromechanical Hybrid Gait Restoration System in People With Spinal Cord Injury
title_sort muscle first electromechanical hybrid gait restoration system in people with spinal cord injury
topic rehabilitation
gait
robotics
spinal cord injury
exoskeleton
url https://www.frontiersin.org/articles/10.3389/frobt.2021.645588/full
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