The hospital bed STR MK 8 is equipped with a power-assisted transportation system, which enables one person to easily push and steer the stretcher with little effort. This system comprises a motorized, retractable 5th wheel installed on a damper device, 2 operating handles (with electric brake and directional control) and a speed limit switch for 2 different maximum speeds. The entire system allows easy manoeuvring of the stretcher with only a single hand by reducing start-up push force and steering by up to 50%.