Hinged Brace with Viscoelastic Pad

grabcad

The updated model now features two viscoelastic pads, improving motion dampening in both directions but resulting in a taller design. A photo demonstrates how this concept can be easily evaluated during "hack-a-thons" using Legos, allowing for adjustments without printing multiple prototypes. Potential improvements include rotating the hinge to address rotational tremors, replacing it with a ball joint to increase range of motion, or even eliminating the hinge altogether. Additionally, one may consider removing the spring by 3D printing plates with variable density resin. Enhancing wrist flexibility could be achieved by permitting the forearm plate to slide and/or flex within a holder mounted on the arm. Another option is adding an extra pad and mounting bracket on top for better dampening in both directions, provided a thicker profile is acceptable. Lastly, incorporating a pad between the hand and the plate may improve dampening while reducing irritation from rubbing.