Patent ID: 7942935

Claim:
A prosthetic device having an articulating ankle joint for a leg amputee, comprising: a joint housing forming a first chamber, the first chamber having a first opening; a rotary hub disposed within the joint housing, movable independently of the joint housing, and wherein the rotary hub is the articulating joint; a plurality of vanes integrally formed with and extending radially symmetrically outwardly from the rotary hub, the plurality of vanes comprising a first vane and a second vane, the second vane being located on an opposing side of the rotary hub directly opposite the first vane, wherein the vanes are fully enclosed within the joint housing, and wherein at least one of the plurality of vanes is configured to rotate and actuate fluid flow through the first opening; and a toe keel element mounted on a spherical or cylindrical surface of the joint housing in order to facilitate resistance to eversion and inversion.