Development and Evaluation of an Automated Repositioning Bed for Enhanced Patient and Caregiver Support

Background: Automated patient repositioning systems prevent pressure ulcers and support respiratory and circulatory functions in bedridden patients. They enhance patient comfort,improve quality of life, and reduce caregiver burden by minimizing the risks associated with manual handling.This study presents the design and development of a low-cost patient repositioning system with customizable positioning and timing features tailored to patient and caregiver needs. Methods: We designed the simulated model of an automated repositioning bed, developed its working hardware prototype, and obtained end-user feedback on its usability.The prototype was evaluated for structural integrity using finite element analysis (Young’s modulus = 200 GPa, Poisson’s ratio = 0.3). A control algorithm was implemented to enable operation while ensuring safety. The electronic circuitry was designed to regulate sensors and actuators through a feedback loop. The system’s usability and effectiveness in reducing caregiver workload were assessed based on Likert scale questionnaire feedback from 14 patients and 11 caregivers. Results: A working design of the prototype bed is developed which implementshead, side, and foot movements. The control system utilizes 3 DC motors. The patient load simulation performed on the design showed a small deformation effect with a maximum of 0.54 mm. All participants found the hardware prototype of the system to be capable of reducing caregivers’ physical effort required for repositioning. However, the system might not provide patients complete independence for side turning. Conclusion: This study showcases the viability of a cost-effective patient repositioning system,designed using locally readily accessible materials.Moreover, it addressesa critical need for accessible and practical repositioning solutions that could significantly improve patient care and ease caregiver burden. DOI: https://doi.org/10.59564/amrj/03.02/009