Stretcher TRIZ Cases

Telescopic rods compact a rescue stretcher for storage and narrow-terrain maneuvering.

An inverted Y-leg lift assembly distributes force to lower a patient support and raise it for caregiver access with less mechanical stress.

This case shows how a one-piece rigid stretcher uses tilted walls, convex supports, and radiotransparent materials for secure transfer.

A recessed bed frame with pivoting lateral handles preserves head-end caregiver access without sacrificing structural support.

A foldable frame and large outer wheels balance compact storage, terrain adaptability, and stable single-person handling.

A guided cable housing prevents engaging-arm interference during litter extension.

A patient lift uses rollers for higher loads and slide members for guidance, reducing wear from debris exposure.

A collapsible support sheet and expandable stiffeners enable compact storage, rapid deployment, and stable single-person patient transport.

Cantilevered arm support and variable-speed drive help EMS personnel load and unload ambulance cots with less physical strain.

Adjustable harnesses secure injured patients during rough transport and hoist evacuation.

This case routes actuator force through a retained cable housing, limiting slack and interference as the litter extension moves.

The case shows how a patient transport apparatus monitors battery state and transfers power to connected devices during care.