SPARKy-Spring Ankle with Regenerative Kinematics
Final rept. 1 Feb 2007-30 Jun 2011
ARIZONA STATE UNIV TEMPE
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The goal is to design the Spring Ankle with Regenerative Kinetics SPARKy which seeks to develop a new generation of powered prosthetic devices based on the Robotic Tendon actuator. This actuator is a lightweight motor and transmission in series with a helical spring that significantly minimizes the peak power requirement of an electric motor and total system energy. The Robotic Tendon has kinetic advantages and stores and releases energy to provide SPARKy users with 100 of required push-off power and ankle range of motion comparable to able-bodied ankle motion while maintaining a form factor that is portable to the wearer. In the second year, we developed and tested a transtibial prosthesis that supports continuous unstructured walking for up to 2.8 hours. A pilot study with 2 subjects tested the device. All components are worn and are lightweight and portable. In the third year, jogging on a treadmill was demonstrated.
- Medicine and Medical Research