FIELD: medicine.SUBSTANCE: wheel-chair contains base, seat, armrests, back, control handle, additional control handle, located on back with possibility of rotation and fixation, footboard, driving wheels, self-installing driven wheels and lifting support wheels. Wheel-chair additionally contains trailed platform, two battery packs with connectors, main electric engines and additional electric engine. Armrests are connected with back by means of axles and are made with possibility of rotation and fixation by means of thumbscrews at seat. Support wheels are installed in trailed platform, made in form of frame with main electric engines, which are connected with support wheels by means of drives. Platform is connected with base by means of first hinged detachable mechanisms and is connected with seat by means of system of levers, connected by means of second detachable hinged mechanisms with telescopic rod, fixed to additional electric engine. Version of each ramp implementation contains two parallel grooves, connected to each other by means of bridges and provided with fasteners for rotation and fixation to wall along stair flight, intermediate grooves, two collapsible sections if form of parallel grooves inserts in form of curved at obtuse angle plates. Intermediate grooves have hooks for interaction with curved at obtuse angle plates and converging surfaces for connection to each other and parallel grooves. Butt ends of parallel grooves are connected with collapsible sections. Curved at obtuse angle plates are fixed with fins of curves at equal distance from each other to internal surfaces of parallel grooves, collapsible sections and intermediate grooves, which have holes between plates. In accordance with the first version ramp additionally contains fastener for rotation and fixation to wall along stair flight, made in form of connected to one of parallel grooves rods, connected by means of nuts and hinges with levers, which have bridge and connected with threaded
