Inventors:
Milo S. Collier - Longview WA
International Classification:
A61F 264, A61F 274, A61F 266, A61F 268
Abstract:
The invented artificial limb includes a shin, ankle and foot. The shin includes a first mount, a second mount positioned below the first mount, and a plurality of rods extending between the first and second mounts, where at least one rod is a load bearing rod. The foot includes an elongate member having a toe section and a heel section. In many applications, the elongate member is arched. The shin is coupled to the foot by an ankle. The ankle allows the shin to rotate around an axis substantially perpendicular to a line between the toe and heel sections of the foot. A rotation controlling element such as an elastic band or a compression spring is connected to both the ankle and to the elongate member to restrict rotation of the shin toward the heel section of the foot. The ankle may also allow the shin to move around a second axis to simulate lateral rotation of the ankle. In the preferred embodiment, the rods of the shin and the elongate member of the foot are flexible to provide a more comfortable and responsive artificial limb.