Accession Number : ADA618766


Title :   SPARKy-Spring Ankle with Regenerative Kinematics


Descriptive Note : Final rept. 1 Feb 2007-30 Jun 2011


Corporate Author : ARIZONA STATE UNIV TEMPE


Personal Author(s) : Sugar, Thomas


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a618766.pdf


Report Date : Sep 2011


Pagination or Media Count : 127


Abstract : 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.


Descriptors :   *PROSTHETICS , ACTUATORS , JOINTS(ANATOMY) , KINEMATICS , LEGS , REGENERATIVE MEDICINE , ROBOTICS , SPRINGS , TENDONS , WALKING


Subject Categories : Medicine and Medical Research


Distribution Statement : APPROVED FOR PUBLIC RELEASE