Conceptual Design of a Fully Passive Transfemoral Prosthesis to Facilitate Energy-Efficient Gait

Ramazan Unal*, Sebastiaan Behrens, Raffaella Carloni, Edsko Hekman, Stefano Stramigioli, Bart Koopman

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)
148 Downloads (Pure)

Abstract

In this study, we present the working principle and conceptual design towards the realization of a fully-passive transfemoral prosthesis that mimics the energetics of the natural human gait. The fundamental property of the conceptual design consists of realizing an energetic coupling between the knee and ankle joints of the mechanism. Simulation results show that the power flow of the working principle is comparable to that in human gait and a considerable amount of energy is delivered to the ankle joint for the push-off generation. An initial prototype in half scale is realized to validate the working principle. The construction of the prototype is explained together with the test setup that has been built for the evaluation. Finally, experimental results of the prosthesis prototype during walking on a treadmill show the validity of the working principle.

Original languageEnglish
Pages (from-to)2360-2366
Number of pages7
JournalIEEE Transactions on Neural Systems and Rehabilitation Engineering
Volume26
Issue number12
DOIs
Publication statusPublished - Dec-2018

Keywords

  • Prosthetics
  • user centered design
  • biomechanics
  • kinematics
  • dynamics
  • motion analysis
  • EXPENDITURE
  • WALKING

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