Stance-control orthotic knee joints stabilize the knee joint during the weight-bearing portion of gait without restricting swing-phase flexion, thus achieving a more normal gait for individuals with quadriceps muscle weakness. These devices must be designed around well-defined stance-control strategies that enable or hinder joint motion at specific events during the gait cycle. This paper presents a new type of stance control strategy and a novel stance controller design. Pilot clinical testing was performed on a prototype, demonstrating feasibility of this approach for providing reliable knee stability while facilitating swing-phase flexion. In particular 44 degrees of swing-phase flexion and 15 degrees of stance-phase flexion were achieved during level walking. Further testing is needed in-situ to provide additional validation and assess other mobility conditions.
Development and evaluation of a mechanical stance controlled orthotic knee joint with stance flexion
Journal of mechanical design ; 139 , 3
2017
Aufsatz (Zeitschrift)
Englisch
BKL: | 50.15 Konstruktionslehre / 52.20 Antriebstechnik, Getriebelehre / 52.15 Maschinenelemente, Maschinenbaugruppen | |
Lokalklassifikation TIB: | 770/5315/5330 |
Development and Evaluation of a Mechanical Stance-Controlled Orthotic Knee Joint With Stance Flexion
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