Ankle-knee prosthesis with powered ankle and energy transfer development of the CYBERLEGs Alpha-Prototype

Louis Flynn, Joost Geeroms, Rene Jimenez-Fabian, Bram Vanderborght, Nicola Vitiello, Dirk Lefeber

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Active prostheses have recently come onto the market, but are limited to modular forms without connections between the knee and ankle modules. Here we present the simulation, design, and preliminary data of a new knee-ankle prosthesis with an actuated ankle based on a variable stiffness actuator with energy transfer from the knee to the ankle as a part of the CYBERLEGs FP7-ICT project. The CYBERLEGs α-Prosthesis utilizes a novel active ankle joint architecture and energy transfer mechanism to transfer energy from the knee joint to the ankle. The device is capable of producing a level ground walking gait that closely approximates the joint torques and kinematics of a non-amputee while while maintaining compliant joints, which has the potential to decrease impulse losses, and ultimately reduce the end user energy consumption. This first prototype consists of a passive knee and an active ankle, which are energetically coupled to reduce the total power consumption of the device.

Original languageEnglish
Title of host publicationNEUROTECHNIX 2013 - Proceedings of the International Congress on Neurotechnology, Electronics and Informatics
Pages224-228
Number of pages5
Publication statusPublished - 2013
Event1st International Congress on Neurotechnology, Electronics and Informatics, NEUROTECHNIX 2013 - Vilamoura, Algarve, Portugal
Duration: Sep 18 2013Sep 20 2013

Other

Other1st International Congress on Neurotechnology, Electronics and Informatics, NEUROTECHNIX 2013
CountryPortugal
CityVilamoura, Algarve
Period9/18/139/20/13

Keywords

  • Active
  • Ankle
  • CYBERLEGs
  • Energy Efficiency
  • Energy Transfer
  • Knee
  • Prosthesis
  • Transfemoral

ASJC Scopus subject areas

  • Artificial Intelligence

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