NIOP Helix Cuff

This cuff is part of the NIOP prosthetic modular arm catalog, and is used to fit transhumeral (above-elbow) amputees and people with limb difference. The (4) screw holes around the base of the perimeter align with the screw pattern on the Top Plate part from the NIOP Shelbow module https://www.thingiverse.com/thing:3639811

It is very effective, so it holds on without much constricting pressure, and the vertical supports allow the blood to still circulate. It also is well ventilated compared