FOOT PROSTHESIS Russian patent published in 2003 - IPC

FIELD: medical equipment, applicable in prosthesises of the lower extremities. SUBSTANCE: the foot prosthesis has the step facing, taloctural member, fin that is hinge-joined to the taloctural member, as well as a screw positioned in the taloctural member with motion screws installed on it, which through a linkage hinge-joined to them are linked to the upper part of the fin. A bearing wall located in the zone of the screw on the side opposite the fin is additionally introduced, in addition, on the bearing wall surface facing the screw a radial groove is made, its longitudinal axis is parallel with the screw axis, at the same time both ends of the screw are fastened in the taloctural member by means of spherical bearings engage able with the radial surface of the groove. EFFECT: the intersecting components of the resultant force arising in the foot components at stepping on its toe-cap, are transmitted to the bearing wall through the motion screws and the spherical projections available on them and engage able with the groove. prevented screw bending, which in this case in under action of only longitudinal components of the resultant force directed along the screw axis. 6 dwg