Abstract: A plunger pin assembly for locking engagement with a shuttle lock of a prosthetic limb socket assembly, includes: (a) a housing having an internal cavity and a center-hole extending into its distal end, communicating with the internal cavity; (b) a cradle retained within the cavity, having a distal-facing outer surface that is laterally slidable with respect to the proximal-facing inner surface of the cavity, where the cradle includes a plunger pin component extending distally therefrom; and (c) a resilient shock absorber positioned, at least partially, between the proximal end of the plunger pin component and the inner distal-facing surface of the cavity; where (d) the cradle includes a center hole extending axially therethrough, the plunger pin component includes a ball positioned on a proximal end thereof, the ball having a diameter larger than the diameter of the center hole of the cradle, and the ball of the plunger pin component is seated in the center hole of the cradle to provide a ball joint coupling

Abstract: A plunger pin assembly for locking engagement with a shuttle lock of a prosthetic limb socket assembly, includes: (a) a housing having an internal cavity and a center-hole extending into its distal end, communicating with the internal cavity; (b) a cradle retained within the cavity, having a distal-facing outer surface that is laterally slidable with respect to the proximal-facing inner surface of the cavity, where the cradle includes a plunger pin component extending distally therefrom; and (c) a resilient shock absorber positioned, at least partially, between the proximal end of the plunger pin component and the inner distal-facing surface of the cavity; where (d) the cradle includes a center hole extending axially therethrough, the plunger pin component includes a ball positioned on a proximal end thereof, the ball having a diameter larger than the diameter of the center hole of the cradle, and the ball of the plunger pin component is seated in the center hole of the cradle to provide a ball joint coupling

Abstract: A cushion for use in a shoe sole with resilient, arcuate, load-bearing first and second and central walls. The first and second walls are tubular and are configured for supporting and cushioning edges of a foot. They respectively form first and second tubular portions of the cushion extending generally along a lateral and medial sides of a foot shape. The central wall is configured for supporting and cushioning a laterally central part of the foot and forms a hollow central portion. The central portion is disposed between and joined with the first and second tubular portions. The central wall and first tubular wall are coupled at a coupled section such that vertical deformation of one of the central and first walls is transmitted to the other. The coupling portion has vertically spaced walls that join vertically spaced sections of the central and tubular walls. A recessed portion of the cushion isolates vertical deformation of adjacent sections of the central and tubular walls.