Load-bearing skin and bone integrated pylon with hermetically sealed neural interface

A load bearing skin and bone integrated pylon comprises:

• a load-bearing solid tubular frame elongated in the direction of implantation, and adapted to carry body weight, forces, and moments associated with locomotion,
• wherein an inner portion of the solid tubular frame is adapted to be positioned inside a bone of a limb's residuum and an outer portion of the solid tubular frame is adapted to be positioned outside the limb's residuum to receive a prosthesis, and a middle portion of the solid tubular frame between the inner portion and the outer portion is adopted to be positioned at a skin layer of the limb's residuum,
• the middle portion further comprising a porous permeable body comprising compacted and sintered particles filling in regions around the solid tubular frame wherein, in the middle portion, the porosity of the volume fraction of the compacted and sintered particles is within a range of about 30% to about 50%,
• wherein the compacted and sintered particles have a particle size within the range of about 20 to about 500 microns and a pore size between the compacted and sintered particles is in a range of about 20 to about 350 microns;
• an insulator insert positioned inside the solid tubular frame, and having approximately the same length as said solid tubular frame, said insulator insert having at least one bore extending therethrough,
• wherein a hermetic seal is formed between the insert and the solid tubular frame on both ends;
• and
• a plurality of electrically conductive wires each threaded through the entire length of said at least one bore of the insert;
• wherein each of the ends of the electrically conductive wires extend outside the insert, forming leads for further connection;
• wherein a hermetic seal is formed between each end of the conductive wires and the at least one bore of the insert.