IEEE ... International Conference on Rehabilitation Robotics : [proceedings] · 2019
Elbow Flexion Assist Orthosis for Arthrogryposis.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
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Wee Jinyong, Shank Tracy M, Castro Miguel N, Ryan Lauren E, Costa Joanna, Rahman Tariq
Аннотация
INTRODUCTION: People with arthrogryposis multiplex congenita (AMC) often have muscle weakness in the biceps that makes elbow flexion difficult. An elbow-flexion assist orthosis was designed using the force of springs, combined with a sliding joint, to apply appropriate elbow torque to aid a user in lifting her hand to her mouth. The sliding joint allows an increasing elbow torque despite a decreasing spring force.
METHODS: The device was prototyped for a user with AMC. An occupational therapist measured the user's flexion with and without the device. Benchtop torque measurements were also determined and compared with user trials.
RESULTS: The assist orthosis applied an increasing torque as the elbow flexed, thereby allowing the subject to reach her mouth for feeding and then extend her elbow to a position of no applied torque. Without the device, the subject had active elbow flexion of 87 degrees. With the device, this flexion increased to 120 degrees.
CONCLUSION: The novel prototype is a lightweight, spring-powered flexion orthosis which can be made relatively easily and is potentially concealed under clothing. It provides the appropriate torque to move the hand against gravity and increases elbow-flexion of the user.
METHODS: The device was prototyped for a user with AMC. An occupational therapist measured the user's flexion with and without the device. Benchtop torque measurements were also determined and compared with user trials.
RESULTS: The assist orthosis applied an increasing torque as the elbow flexed, thereby allowing the subject to reach her mouth for feeding and then extend her elbow to a position of no applied torque. Without the device, the subject had active elbow flexion of 87 degrees. With the device, this flexion increased to 120 degrees.
CONCLUSION: The novel prototype is a lightweight, spring-powered flexion orthosis which can be made relatively easily and is potentially concealed under clothing. It provides the appropriate torque to move the hand against gravity and increases elbow-flexion of the user.