Low-Cost Prosthetic Hand: Design and Manufacturing of a Multifunctional Body-Powered Solution

In Bangladesh, many individuals undergo arm amputations due to trauma, diseases, or congenital deformities, but affordable prosthetic options remain limited. To address this, we developed a cost-effective prosthetic arm for trans-radial amputees using simple technology and locally available resources. Starting with measurements from an amputee, we designed the prosthetic in SOLIDWORKS and used 3D printing for key components, along with locally sourced belts and screws to reduce costs. The lightweight prosthetic closely resembles a human hand and performed well in daily activity tests, demonstrating good grasp and object manipulation capabilities.