Development of a New Positioning of the Patient in Ambulances 785039

Ambulance patients are subjected to high vibration levels because of the lack of coordination of damping characteristics of vehicle and stretcher in modern ambulances. A parameter study optimized the dynamic characteristics of the stretcher support in relation to the vehicle by drawing on data of a previous investigation. By these means a new stretcher support was designed and constructed. The following features were incorporated:
- vibrational characteristics tuned to vehicle suspension, regardless of loading
- feet-first positioning of patient in driving direction
- arbitrary height level of patient
- vibrational characteristics independent of position
- free space under stretcher
- ease of loading and unloading
- attachment of mechanical components (stretcher guidance and vibration-damping systems) to driver cab wall
Driving tests with a prototype model showed that the driving comfort values which were computer optimized were indeed realized. As noted, vibrational-characteristics were also greatly improved.


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