Artificial foot for a leg prosthesis

Claim 1

An artificial foot for a leg prosthesis comprising a foamed plastic molded foot portion having a ball and plantar area with a plate-shaped, metallic reinforcing member embedded therein which has a section curved so as to extend correspondingly to the ball of the foot so as to support a rolling function of the foot, and an elastic, yielding cushioning forefoot core and a function core consisting of a tab disposed within a heel area, the function core and the reinforcing member being rigidly interconnected, the reinforcing member including at least two superimposed leaf springs of approximately equal length configured to correspond with the rolling profile of the foot, the leaf springs consisting of one of titanium and a high-tensile titanium-aluminum alloy, the at least two leaf springs including a bottom leaf spring and a top leaf spring, the bottom leaf spring being provided so as to overlap the top leaf spring by at least 5 mm in the direction of the point of the foot; wherein said artificial foot further comprises an elastic spacer disposed between the leaf springs, the elastic spacer being fabricated from a material possessing a high gliding ability and being essentially T-shaped with a salient portion directed toward the point of the foot which becomes under so as to assume a lingulate configuration so that the leaf springs overlap the spacer on all sides.