Publication: Design analysis of a motorized lifting and transfer device for heavyweight and obese patients
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Date
2024-07-29
Authors
Gan, Shi Qin
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Abstract
This study focuses on designing and developing a motorized lifting and transfer device capable of handling up to 250 kg, aiming to mitigate the risk of work-related musculoskeletal disorders (WMSDs) associated with current manual methods. The project objectives include designing and prototyping a motorized device for safe and efficient patient transfers, conducting rigorous structural assessments through tensile tests on individual slings and the entire sling system, and delivering a reliable, cost-effective solution for healthcare settings. Load tests further validate the prototype's capacity to safely lift 250 kg, while a patient transfer demonstration evaluates its compliance with safety standards and real-world effectiveness. Tensile tests show each strip sustains an average load of 4,241.05 N ± 269.44, with the entire sling system supporting over 13,000 N, confirming its suitability for weights up to 250 kg. Modifications improved the prototype's lifting capability, achieving successful 250 kg lifts. The subject transfer demonstration, operated by a single person, was successfully completed in approximately 4 minutes and 40 seconds, underscoring its efficiency. Despite prototype design limitations, this project marks an initial step towards developing viable solutions to address WMSDs associated with manual patient transfers.