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

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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
Article number8531760
Pages (from-to)2360-2366
Number of pages7
JournalIEEE transactions on neural systems and rehabilitation engineering
Volume26
Issue number12
Early online date12 Nov 2018
DOIs
Publication statusPublished - 1 Dec 2018

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Ankle Joint
Conceptual design
Gait
Prostheses and Implants
Exercise equipment
Knee Joint
Walking

Keywords

  • Absorption
  • Couplings
  • Foot
  • Knee
  • Legged locomotion
  • Prosthetics
  • Springs

Cite this

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Conceptual Design of a Fully Passive Transfemoral Prosthesis to Facilitate Energy-Efficient Gait. / Unal, Ramazan; Behrens, Sebastiaan; Carloni, Raffaella; Hekman, Edsko; Stramigioli, Stefano; Koopman, Bart.

In: IEEE transactions on neural systems and rehabilitation engineering, Vol. 26, No. 12, 8531760, 01.12.2018, p. 2360-2366.

Research output: Contribution to journalArticleAcademicpeer-review

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