Ankle, foot, and lower leg prosthetic device

摘要

A prosthetic device for simulating the movements of a natural human ankle and foot throughout all the phases of the gait cycle and which is adapted for the removable attachment to the stump of a lower extremity amputee includes an ankle block member having an aperture in which a universal joint is disposed for allowing the ankle block member to simulate the movements to the anatomical limits of the natural human ankle. Attached to the universal joint and extending upwardly therefrom is an elongated tibial component having an upper tibial end to which is attached a tibial shock member for shock absorption of the prosthetic device during phases of the gait cycle when the prosthetic device strikes any walking surface. The prosthetic device further includes a lower and an upper mounting block which are both attached to a receiver mounted to the flat undersurface of the stump, adjustment of the lower mounting block permitting the pitch of the prosthetic device to match the pitch of the amputee's natural leg so that the prosthetic device can be aligned in gait with the amputee's natural leg for normal walking upon any terrain or surface.