Bi-modal ankle-foot device

摘要

A bi-modal ankle-foot device that provides a curved effective shape appropriate for walking and a flattened effective shape for standing. The bi-modal ankle-foot device includes a foot piece and a lockable ankle joint connected to the flat foot piece, the ankle joint and foot piece cooperating to provide a curved shape for walking when the ankle joint is unlocked and to provide a flattened shape for standing when the ankle joint is locked.

主权项

1. A bi-modal ankle-foot device comprising: a pylon; a rigid foot piece; an ankle joint pivotably connecting the pylon to the foot piece so that the foot piece is rotatable relative to the pylon between plantarflexed and dorsiflexed positions; an ankle joint locking mechanism for releasably locking the ankle joint at any angular orientation of the foot piece to the pylon between the plantarflexed and dorsiflexed positions, the locking mechanism having both a standing mode of operation where the ankle joint is locked and a walking mode of operation where the ankle joint is unlocked; and an actuator for the locking mechanism controlled remotely from the ankle joint.