Knee and Joint Protractor - goniometer - repaired 1.29.2017

thingiverse

A recent update (1.29.2017) repaired .stl files, fixing numerous mesh errors after Zalntar's notice. Apologies for any issues caused. This amateur goniometer measures joint range of motion, specifically designed to help a user track knee progress in physical therapy. A standard protractor proved insufficient for measuring the angle at the knee joint. To use this gadget, place the midpoint of its circular feature on the outside of the affected knee joint, with arms pointing towards the ankle and hip. In a typical patient, a 'good range of motion' lies between 120-130 degrees, as suggested by a physical therapist. For assembly, you'll need three 3mm x 15mm bolts, one 3mm elastomeric stop nut, and two regular nuts. Print the three .stl files and affix the stationary.stl with its outer holes aligned in the protractor. Secure with acetone, temporarily bolting together until it dries. Attach the pointer to the center hole using a bolt and stop nut. To use, align the device beside the knee or joint, placing the central bolt at the pivot point. Hold the stationary piece and pointer to opposite sides of the joint, reading the angle of movement directly from the gadget.