Prosthetic socket systems and methods

A prosthetic system, comprising:

• a rigid outer shell socket with an asymmetric inner surface contour with curves forming an inner depression to capture an insert socket with corresponding surface features;
• an attachment puck to facilitate fastening of a prosthetic limb to the rigid outer shell socket;
• a customized prosthetic insert socket with:
• an asymmetric outer contour with curves forming an outer protrusion that corresponds to the inner depression of the asymmetric inner surface contour of the rigid outer shell socket, and
• an inner contour that corresponds to a residual limb surface contour of a patient,
• wherein the outer protrusion of the asymmetric outer contour of the customized prosthetic insert socket and the inner depression of the asymmetric inner surface contour of the rigid outer shell socket interact to selectively secure the customized prosthetic insert socket within the rigid outer shell socket,
• wherein the asymmetric outer contour of the customized prosthetic insert socket is different than the inner contour of the customized prosthetic insert socket, such that the asymmetric outer contour of the customized prosthetic insert socket is non-conformal with the residual limb surface contour.

A method comprising:

• determining a surface contour of a residual limb of a patient;
• selecting a rigid outer shell socket of a particular size from a plurality of premade rigid outer shell sockets of varying sizes, based on the residual limb of the patient, wherein the rigid outer shell socket includes an asymmetric inner surface contour with curves forming an inner depression to capture an insert socket with corresponding surface features;
• printing, via a three-dimensional printer, a prosthetic insert socket with:
• an inner contour that corresponds to the surface contour of the residual limb of the patient,
• an asymmetric outer contour with outer curves forming an outer protrusion that corresponds to the inner depression of the asymmetric inner surface contour of the selected rigid outer shell socket, and
• wherein the asymmetric outer contour of the prosthetic insert socket is different than the inner contour of the prosthetic insert socket, such that the asymmetric outer contour of the prosthetic insert socket is non-conformal with the surface contour of the residual limb;
• inserting the residual limb of the patient within the prosthetic insert socket;
• and
• inserting the prosthetic insert socket within the rigid outer shell socket to cause the inner depression of the rigid outer shell socket to interact with the outer protrusion of the asymmetric outer contour of the prosthetic insert socket, such that the prosthetic insert socket is captured within the rigid outer shell socket.