Optimization and application of a wrap-spring clutch to a dynamic knee-ankle-foot orthosis.
A dynamic knee-brace system (DKBS) has been designed which provides stance phase stability and swing phase freedom. A wrap-spring clutch controls knee flexion. Clutch optimization was performed minimizing clutch length. Kinematic tests on a normal subject using the DKBS document nearly normal dynamic knee flexion during swing (38 degrees versus 53 degrees for normal).
Irby
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SE
Biomechanics Laboratory, Mayo Clinic, Rochester, MN 55905, USA.
Kaufman
K R
KR
Wirta
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RW
Sutherland
D H
DH
D001915:Braces; D004867:Equipment Design; D005069:Evaluation Studies as Topic; D005684:Gait; D006801:Humans; D007866:Leg; D009989:Orthotic Devices