Title :
Optimization and application of a wrap-spring clutch to a dynamic knee-ankle-foot orthosis
Author :
Irby, Steven E. ; Kaufman, Kenton R. ; Wirta, Roy W. ; Sutherland, David H.
Author_Institution :
Biomech. Lab., Mayo Clinic, Rochester, MN, USA
fDate :
6/1/1999 12:00:00 AM
Abstract :
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 (380 versus 530 for normal)
Keywords :
clutches; gait analysis; kinematics; orthotics; clutch length minimization; clutch optimization; dynamic knee-ankle-foot orthosis; kinematic tests; knee flexion; normal subject; stance phase stability; swing phase freedom; wrap-spring clutch; Engine cylinders; Friction; Hospitals; Knee; Laboratories; Legged locomotion; Motion analysis; Pediatrics; Springs; Stability;
Journal_Title :
Rehabilitation Engineering, IEEE Transactions on
