Ligature device (10) for an endoscope, with an elastic ligature ring (13), which, for setting a target range of the ligature device (10) is removable, a into a channel (5) of an insertion tube (1) of the endoscope tube (11), which can be inserted, a in the outer tube (11) arranged inner tube (12), the tip of the ligature ring (13) on its outer surface, a manipulator (15), through which the outer tube (11) with respect to the inner tube (12) is displaceable, so that the ligature ring (13) through the outer tube (11) of the inner tube (12) is stripped off, and a with the inner tube (12) which is connected (154) for. Receiving a tube (160) of a suction device, characterized in that, on the inner tube (12) a bore (18) is formed, which is arranged in such a way that it passes through the for the stripping of the ligature ring (13) of the inner tube (12) moving outer tube (11) is covered.
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