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Development of a Multiple Degree of Freedom Knee Disarticulation Prosthesis with Active Leg Length Variation
Leibniz Universität Hannover, Institute of Production Engineering and Machine Tools, An der Universität 2, Hanover, Germany
Leibniz Universität Hannover, Institute of Production Engineering and Machine Tools, An der Universität 2, Hanover, Germany
Leibniz Universität Hannover, Institute of Production Engineering and Machine Tools, An der Universität 2, Hanover, Germany
- 1 Leibniz Universität Hannover, Institute of Production Engineering and Machine Tools, An der Universität 2, Hanover, Germany
- 2 Leibniz Universität Hannover, Institute of Production Engineering and Machine Tools, An der Universität 2, Hanover, Germany
- 3 Leibniz Universität Hannover, Institute of Production Engineering and Machine Tools, An der Universität 2, Hanover, Germany
Modern Mechanical Engineering·Volume 04 (2014)·Pages 207–221·Published 27 November 2014·DOI10.4236/mme.2014.44020
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Abstract
This paper presents a novel design for a knee disarticulation prosthesis. In this design, three hydraulic cylinders form the supporting structure and provide the damping effect at the same time. That way the novel knee joint offers two fundamental advantages compared to the state of the art. First, the combination of a supporting structure and damping element reduces the weight of the prosthesis. Secondly, the use of several cylinders allows the actuation of further degrees of freedom. Additional degrees of freedom can be used to vary the leg length within the gait cycle and hence to optimize the gait behavior.
KeywordsBiomechanicsBiomedicineProsthesesKnee-Disarticulation
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