Patent ID: 7226485

Claim:
A prosthetic foot comprising: a longitudinally extending; resilient foot keel; a resilient, monolithically formed shank with a lower portion forming an ankle joint area of the prosthetic foot, a middle portion, and a proximal portion with a straight upper end for connection to a supporting structure on a person's residual leg, said lower portion including a downward facing convexly curved resilient surface posteriorly terminating in a free end of the shank and anteriorly extending upwardly to said middle portion by way of an anterior facing continuous convexly curved surface with increasing radius of curvature, said shank being compressible and expandable in the longitudinal direction of the foot keel during gait to simulate human ankle joint plantarflexion and dorsiflexion; a fastening arrangement, including a coupling element and at least one fastener, connecting and securely positioning the lower portion of the shank to a midfoot portion of the foot keel for creating a dynamic response capability and motion outcome of the foot in gait.