Inventors:
Mark R. Pitkin - Sharon MA
John A. Hays - Columbus OH
Sujatha Srinivasan - Columbus OH
James M. Colvin - Hilliard OH
Assignee:
Ohio Willow Wood Company - Mount Sterling OH
International Classification:
A61F 266
Abstract:
An artificial foot and ankle is provided having a keel component, an ankle component, and a central bumper component interposed between the keel component and the ankle component. The ankle component has a lower surface with a radius of curvature greater than the radius of curvature of an upper surface of the keel component in both a sagittal plane and a frontal plane. The curvature of the central bumper component corresponds to the curvature of the keel component. A holding assembly holds the keel component, the ankle component, and the central bumper component together, with the ankle component capable of rolling motion relative to the keel component in both the sagittal plane and the frontal plane. A dorsiflexion stop assembly may also be provided to control the amount of dorsiflexion.