BIOT hand prosthesis

thingiverse

BIOT Version 3.0! Release 05/03/2016 Improvement: You can manually reposition the thumb to perform opposition with the second and third finger by adjusting it. All files are available for download under the "Thing Files" tab shown above. Printer Settings: - Scale according to hand width using the formula scale = (hand width + 2Xfoam padding thickness) / 88 - Enable support material Print the following files in the respective amounts: 1 - Hand Right Side, Five Fingers STL (use the mirror function to reverse size!) or 1 - Hand Right Side, Five Fingers Support STL (additional support in case of printing problems) - Recommended! 1 - Forearm Support STL 1 - Cylinder STL 5 - Tensioner STL 1 - Distal Metacarpal 1st Finger STL 1 - Distal Metacarpal 2nd Finger STL 1 - Distal Metacarpal 3rd Finger STL 1 - Distal Metacarpal 4th Finger STL 1 - Distal Metacarpal 5th Finger STL 1 - Distal Medial Phalange 1st Finger STL 1 - Distal Medial Phalange 2nd Finger STL 1 - Distal Medial Phalange 3rd Finger STL 1 - Distal Medial Phalange 4th Finger STL 1 - Distal Medial Phalange 5th Finger STL 1 - Proximal Phalange 1st Finger STL 1 - Proximal Phalange 2nd Finger STL 1 - Proximal Phalange 3rd Finger STL 1 - Proximal Phalange 4th Finger STL 1 - Proximal Phalange 5th Finger STL Clamping Elements: 10 - Screw Post (5 mm diameter x 10 mm length) [a] 1 - Screw Post (5 mm diameter x 40 mm length) [a] 20 - Metric Machine Screw (Phillips Pan Head) M4 x 15 mm length [a] 1 - Metric Machine Screw (without head) M4 x 10 mm length [b] 5 - Wood Screw (3.5 mm diameter x 25 mm length) [a] Screw length may vary according to print scale [b] Used to join first finger with the hand Finger flexion of BIOT prosthesis can be activated by wrist extension or flexion, unlike most prosthetics found on the internet that are only activated by wrist flexion. We recommend wrist extension because it is a more physiological and natural movement during finger flexion. Acknowledgements: The BIOT prosthesis was developed by Cesar Augusto Martins Pereira from Biomechanics Laboratory of IOT-HC-FMUSP in conjunction with the occupational therapist Maria Candida de Miranda Luzo from Occupational Therapy Service of the same hospital. Instructions: Assembling instructions are available in Assembling Instructions Manual Version 2.pdf. The BIOT can be viewed in 3D PDF files: BIOT Closed.pdf or BIOT Opened.pdf Print Settings Printer: 3D Machine One Rafts: Doesn't Matter Supports: Yes Resolution: 0.3 mm Infill: 20% Post-Printing BIOT - Thumb Abduction BIOT - Thumb Adduction