The project focused on designing and modeling a self-injecting device using locally sourced materials and tools, aiming to enhance accuracy, speed, and cost-efficiency in medical applications. The design process involved CAD modeling, electrical and mechanical design, and rigorous testing, including buckling analysis and finite element analysis (FEA) using ANSYS to ensure the needle’s effectiveness in penetrating skin with minimal buckling. The device’s force requirement to push the syringe plunger was measured at 39.8N, with the stepper motors exerting a torque of 0.3Nm. After integrating the electrical and mechanical components, the prototype was successfully tested on a dummy human, demonstrating its capability to perform precise self-injections with the press of a button, confirming its operational effectiveness.
Keywords: CAD modeling, Self-injecting device, buckling analysis, finite element analysis (FEA), prototype testing.
