Design and Development of a Smart Transfer Bed

Abstract

Patient handling and transfer activities in hospitals are physically demanding tasks that frequently expose healthcare workers to musculoskeletal disorders (MSDs), particularly back injuries. Conventional patient transfer methods require multiple nurses and become increasingly difficult when handling overweight or paralyzed patients. This paper presents the design and development of a Smart Transfer Bed intended to reduce manual effort and improve patient safety during transfers between hospital beds, diagnostic equipment, and wards. The proposed system integrates a linear actuator-driven sliding platform with ball transfer units to achieve smooth and controlled patient movement. The frame structure is fabricated using lightweight aluminum profiles to ensure durability and portability. The developed prototype is capable of supporting patients weighing up to 150 kg. Initial testing revealed alignment and motion instability issues, which were corrected through structural modifications and guide rail adjustments. Experimental results demonstrate that the smart transfer bed provides smooth linear motion, minimizes transfer time, and significantly reduces caregiver physical strain. The proposed system offers a cost-effective and ergonomic solution for modern healthcare facilities.