Patent ID: 8092550

Claim:
A foot prosthesis having improved rollover and stability comprising: a first plate having a toe region at a forward end, a heel region at a rearward end, a lower surface and an upper surface, wherein the upper surface angles upwardly toward the rearward end; a second plate having a toe region at a forward end, a heel region at a rearward end, an upper surface which is coupled to the lower surface of the first plate and a lower surface which is configured to engage a walking surface; a resilient intermediate member interposed between and coupled to the first and second plates at a location anterior to the heel region of the first plate; a mounting unit having a coupler configured to be coupled to a user of the foot prosthesis and a mounting portion, the mounting portion including a non-planar lower surface, the non-planar lower surface including a mounting surface at a first end of the mounting unit that contacts and is fixed to the upper surface of the first plate, and a projection surface at an opposite second end of the mounting unit extending forwardly from the mounting surface such that a gap is defined between the projection surface and the upper surface of the first plate, the projection surface being movable toward and away from the upper surface of the first plate; and a resilient element positioned at least partially within the gap between the projection surface and the upper surface of the first plate, the resilient element comprising a compressible material configured to dissipate stress in the first plate and control deflection between the first plate and the mounting unit.