Patent ID: 7578799

Claim:
An orthosis for biomechanical evaluation and functional compensation of ambulatory disorders, comprising: an orthotic frame having a proximal frame adapted for fitting to a user's upper leg, a distal frame adapted for fitting to the user's lower leg, a foot support, a knee joint coupling a distal end of said proximal frame to a proximal end of said distal frame, and an ankle joint coupling a distal end of said distal frame to said foot support; a knee actuator disposed on the orthotic frame and configured to control flexion of the knee joint according to a variable resistance, the knee actuator having a selector having at least a first position wherein said knee actuator provides a first resistance and a second position wherein said knee actuator provides a second resistance; an ankle actuator coupled between said distal frame and said foot support providing a dorsal bias to position said foot support against dorsal flexion and a plantar bias to position said foot support against plantar flexion, whereby the ankle actuator controls flexion of said ankle joint; and a control element connected to said selector and configured to move said selector between said first and second position according to at least one aspect of an ambulatory or related activity.