One-way hose for flushing/suction system for endoscope, has connection tubes whose one ends are ope

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A disposable tube for an endoscope, in particular for the [...][...] or the, comprises an irrigation channel, the has one-way hoserinsing channel outlet at a distal end of the a, and a working channel, the has one-way hoseoperating channel outlet at the distal end of the a. The disposable tube comprises at a proximal end a terminal portion, comprising a coupling device for detachably coupling the connection portion to an associated operating unit. The rinsing duct connection opening, further comprises an interface portion, the leads into the purge passage; a sampling port, opens via a branching point into the operating passage the; a first connecting hose, the opens at one end a sump-inlet opening and has at the other end on the branching point also in the working channel; and a second connecting hose, the opens at one end a sump-exit port and has at the other end into a suction duct connection opening. A Flush/suction system for an endoscope and a reusable operating unit comprises such a disposable tube.