Cyborg-Bicy-Beast

thingiverse

Center for Advanced Prosthodontics and Implant Dentistry - CRAI INNOLAB3D UNIVERSITY OF CONCEPCION "Cyborg Beast" is a prosthetic hand designed by Jorge Zúñiga, Ivan Owen, and Peter Binkley. To adapt this hand for cycling, which is a frequent requirement in children, the Laboratory of 3D Innovation at the Center for Advanced Prosthodontics and Implant Dentistry at the University of Concepción made changes to the original design. The original design was modified by adding a rigid palm composed of an arch that generates a concavity (FIG. 1 and 2), which adapts to the handlebar of the bicycle. This arch, measuring 35.8 mm in length, is inclined at 21.65 degrees to the front side to apply the required load for controlling the bicycle. The design also allows for an adequate distribution of possible impacts without needing to close the hand. The angle of the thumb was modified so that during action, the index finger joins the thumb and forms a "clamp" posture to hold the handlebar. (FIG. 1.5 and details) This modification was developed by biomedical engineers at the University of Concepción. Two removable housings were designed to add a superhero motif to the prosthetic hand. These pieces also play a role in protecting the mechanism of strings and elastics. Both housings are attached to the prosthesis using velcro strips, making it easier to maintain the mechanism. (FIG. 1.5 and 2) This prosthesis was designed for children with congenital anomalies of the hand or those who have lost part of their hand, allowing them to drive a bicycle. Improvements: - A concave palm that adapts to the handlebars of the bicycle. - A rigid palm structure with volumes that allow load transmission while avoiding risks and providing greater stability. - Good control of the bicycle during straight-line riding and turns is allowed by this design. - Removable housing for protecting tensioners with superhero motifs. The thumb joins the index finger, changing the angle to hold the handlebar of a bicycle. Requirements: These pieces were made using Stratasys ABSplus manufactured in a Stratasys Uprintplus 3D printer, which has a resistance 40% higher than normal ABS from the same brand. If other materials are used, mechanical resistance should be compared to ensure design safety with a minimum of security. For safety recommendations: See the Manual of Cyborg Beast, section “General Recommendations for e--‐NABLE Prosthetic Devices”.