3D printed prosthetic socket for residual limb

A 3D printed prosthetic socket for a residual lower limb consisting of a 3D printed shell comprising a distal end adapted for linking an interconnecting adapter of the prosthetic socket and a proximal end with an opening adapted for inserting the residual lower limb, wherein the shell comprises a first housing of the prosthetic socket comprising an inner wall and an outer wall, wherein the first housing of the prosthetic socket comprises a rigid region having, in the direction perpendicular to the inner wall, the rigidity of the rigid region and an elastic region having, in the direction perpendicular to the inner wall, the rigidity of the elastic region, wherein the rigidity of the elastic region under a load is smaller than the rigidity of the rigid region, wherein the elastic region is adapted for softening the contact of the residual lower limb with the prosthetic socket and comprises at least one shaped recess in the inner wall of the first housing comprising a set of at least three elastic elements, wherein the at least three elastic elements are connected to the shaped recess and are provided with a contact surface, wherein the elastic elements are elastically deformable in the direction from the inner wall to the outer wall of the first housing, wherein the shell further comprises, between the distal end and the proximal end, the second housing located outside the first housing, wherein between the first housing and second housing, there is an air gap, wherein the second housing comprises at least one opening of the second housing.