- An ankle replacement system that stores and releases energy in a motor-spring complex during gait. The motor-spring is a compliant actuator that allows Odyssey to provide a fully-powered (able-bodied) gait step.
- Putting the user-specific spring in parallel with the motor increases system efficiency by taking advantage of the body's natural loading abilities during the gait cycle. This allows for a small, lightweight motor to add the remaining energy to the step.
- Utilizes a continuous control approach which never needs to switch states or modes; relies on only two sensors (a rate gyro and motor position sensor) to determine the proper output for any condition.
- Microprocessor-controlled robotic ankle interprets user's behavior 1,000 times each second to ensure it follows their every move.