Patent ID: 11911318
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 13:
14. A rollup evacuation sled, comprising;
a bottom sheet having a head end and a foot end, wherein the bottom sheet includes an upper section and a lower section;
a foam mattress disposed above the bottom sheet;
a support sheet disposed above the mattress, wherein a margin stack comprising periphery portions of the bottom sheet and the support sheet forms a sandwiched margin left side and a sandwiched margin right side;
a plurality of horizontal straps affixed respectively to the sandwiched margin left side and to the sandwiched margin right side, wherein the horizontal straps are disposed along a direction substantially perpendicular to a longitudinal direction to tighten a person lying on the support sheet;
a plurality of spinal boards disposed between the bottom sheet and the mattress in the upper section of the bottom sheet, wherein the spinal boards are spaced apart from each other;
a plurality of wheel assemblies mounted on each spinal board, wherein each wheel assembly has a wheel extending through respective holes in the bottom sheet;
at least one anti-wear sheet affixed to a bottom surface of the bottom sheet in the upper section;
at least one heavy duty layer affixed to the bottom surface of the bottom sheet in the lower section, wherein the heavy duty layer is coated with anti-fungal, anti-bacterial and fire-retardant materials;
a foot pouch coupled to the sandwiched margin left and right sides and dimensioned to substantially enclose feet and lower calves of the person lying on the support sheet, wherein the foot pouch is configured to store a stack including the bottom sheet, mattresses, spinal boards, and the support sheet, when the stack is rolled up along the longitudinal direction from the head end;
a first stiffening sheet that supports a head/neck portion of the person, wherein the first stiffening sheet is disposed between the bottom sheet and the foam mattress in the upper section;
a second stiffening sheet that supports a foot/ankle portion of the person, where in the second stiffening sheet is disposed between the bottom sheet and the support sheet in the lower section under the foot pouch; and
an additional foam mattress disposed between the bottom sheet and the foam mattress, wherein the additional foam mattress has a plurality of openings in which the spinal boards are respectively disposed.