The Journal of Science and Engineering Applications (JSEA)

Abstract

Parkinson’s disease (PD) is a movement disorder resulting in tremors and conductivity problems in nerves, which lead to difficulties performing basic tasks such as turning a doorknob. This involved designing an under-$100 device to automatically rotate doorknobs without destroying the door, thus improving patient independence. Development was carried out according to functional and non-functional requirements, brainstorming design ideas, and selecting the best solution with the help of a decision matrix. Panels were chosen for their low cost and availability, while other parts were designed and 3D printed. Torque calculations and simulations supported the design’s performance against criteria such as achieving a four-second rotation of a doorknob. The final device presented is a low-cost, easy-to-use device for use in low-resource contexts where no assistive device exists for people with motor impairment. This innovation could greatly enhance the quality of life for Parkinson’s patients and their caregivers.