NIOP Shelbow
Description
Inspired from the Ugunugu elbow by Miguel Rivera, and named after Shelby, the woman it was designed for, this prosthetic elbow is part of the NIOP modular arm catalog, and is used to fit transhumeral (above-elbow) amputees and people with limb difference who don't have an elbow. The (4) screw holes around the base of the perimeter align with the screw pattern on the NIOP Helix Cuff https://www.thingiverse.com/thing:3639770 Most parts are printed, so it requires only minimal hardware (bolt @ elbow, & 12 screws) It features both Flexion and Humeral positioning, that can be placed in numerous settings, and a Grip Lock to hold the hand's grip position. It attaches to the NIOP Kwawu Forearm and Hand remix, and other NIOP compatible hand designs are currently in production. NIOP Kwawu remix https://www.thingiverse.com/thing:3639854 The drive-line is secured by a Brace Plate attached to the wearer's back. NIOP Brace Plate https://www.thingiverse.com/thing:3712119 The completed arm (Kwawu/Shelbow/Helix Cuff at 100% size) weighs 1lb 9oz, including hardware. ***It is strongly recommended that you see a professional prosthetist for guidance before using this device. You can do permanent damage to the wearer with improperly fitted devices, so get a professional to advise you. If you can not afford to see a doctor or live where they are unavailable, visit enablingthefuture.org to find a volunteer prosthetist to help.*** OpenSCAD file for sizing the device coming soon! Temporary Sizing Method - The 100% arm size is based on a forearm length of 220mm. This is the distance from the crease of the elbow to the crease of the wrist. To figure your print scale, divide your forearm length (in mm) by 220. The resulting number is your scale factor to use in your slicer. For bilateral recipients, this device was made for someone 5'-6" tall. Since the Helix Cuff is adjustable, the device can be sized by making the forearm length look proportional to the recipient. These stl's are made for a Left arm device. Most parts (excluding the Switches and Pins) should be mirrored for Right arm devices. Assembly Instructions https://docs.google.com/document/d/13VLW0BEGWytAss0vmlA_FSM1s5sgCWiQNSQEWfPTh58/edit Links for Materials https://docs.google.com/document/d/1_i3BSe7nnHnZhTax_osXeQR7MjQyPMPcE9OXrI1mpeA/edit
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