Prostheses include a terminal device, a back-lock mechanism, a wrist, a limb-socket,and a harness system. The terminal device can be a five-fingered mechanicalhand thatprovides a releasable adaptive grasp, and has independently flexible fingers.The limb socketcan be 3D printed using a molded model of a remnant limb. The harness strapcan encircle anunaffected limb and is coupled to the terminal device with a cable so that auser can controlthe terminal device. The harness system can include a 3D printed harness ringthat couples tothe cable.
