Pneumatic-Hydraulic Hybrid Variable Stiffness Design for Ankle-Foot Prostheses

Technology #11643

Key Points

  • Semi-active ankle-foot prosthesis adjusts stiffness and energy return timing in real-time
  • Provides efficient and comfortable walking for people with lower limb amputation
  • Uses a hybrid closed loop pneumatic and hydraulic system that is affordable, compact, lightweight and energy-efficient

Abstract

The University of Central Florida invention relates to a new design for ankle-foot prostheses that incorporates a hybrid closed loop pneumatic and hydraulic system to control the level of stiffness and energy return timing during walking.