US Patent 11744749 Rapid evacuation sled for patients and victims

Described is a bariatric version of foldup evacuation sled that includes a bottom sheet, a mattress disposed above the bottom sheet, and a support sheet disposed above the mattress. A margin stack including the bottom sheet and the support sheet forms a sandwiched margin left side and a sandwiched margin right side. The sled may further include a plurality of spinal boards disposed between the bottom sheet and the mattress. Wheel assemblies are mounted on each spinal board. The sled further includes a leg/torso cover coupled to the bottom sheet and dimensioned to substantially enclose legs and lower torso of the person when the leg/torso cover is folded upward over the person lying on the support sheet.