Create a 3D model of a versatile gurney for lifting and transporting bariatric patients. It features an interlocking bed system that can be configured into flat, seated, and semi-reclined positions, made from lightweight, high-strength materials with padded surfaces. The adjustable base is collapsible, with heavy-duty lockable wheels and integrated stair-climbing tracks. It has a hydraulic or geared lifting mechanism to lower the bed close to the ground and raise it to standard height, with foot pedal or hand crank controls. Safety features include a wide base with adjustable width, multiple safety straps, side rails, an emergency stop, and manual override. The design is compact, portable, foldable, and includes handles for easy maneuvering. Show the gurney in various configurations, illustrating its capabilities in different scenarios.