Single channel hybrid FES gait system using an energy storing orthosis: preliminary design.

Abhijit Kangude, Brett Burgstahler, Jesse Kakastys, William Durfee

Research output: Contribution to journalArticle

13 Scopus citations


A new system for paraplegic gait by electrical stimulation is presented. The system combines electrical stimulation of the paralyzed quadriceps muscle with a hip-knee orthosis. The orthosis is spring-loaded and contains pneumatic components that store and transfer the energy from knee extension caused by quadriceps stimulation to a pneumatic actuator that drives hip motion. In this manner, cyclic hip and knee motion with arbitrary timing can be achieved using a single channel of surface stimulation. Previous work developed a dynamic model and bench top prototype of the energy storing system. Simulation and design prototypes are presented with the eventual goal of developing a wearable version of the complete gait system.


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