An aim of the invention is to provide a safe, quick and cheap reuse of an endoscopic tube and simplification of its construction the technical task is creation of an endoscope with an endoscopic tube without cavities which require complicated washing. The endoscope comprises: an endoscopic tube, comprising an instrumental channel with a lateral output directed ON an objective lens and with a diameter of a direct output close to the diameter of the distal part of instrument, an external tubular element in a shape of a tube, where one end is bifurcated and adjusted for connection with an instrumental channel and for introduction of instrument, and the other end is branched and adjusted for connection with pressure sources, valves which squeeze the lumens of branches and but at switching on&mdash release them. ON the drawing are represented: a handle (1) of a valve-less single-channel endoscopic tube and a tubular element (15, 16 and 17) with a block of valves (21), places of connection of the element with a channel (5) and with a pressure sources. The tubular element, valves and clips (25) compose a disposable sterile set. The valve-less single-channel endoscopic tube and the set provide all endoscopic functions. Its washing will become safe, quick and cheap and its manufacturing and reprocessing will be reduced in price as well.
