An endoscope nozzle is provided at the distal end of the insertion section of an endoscope and has a discharge opening for discharging fluid along the distal end surface of the insertion section. The endoscope nozzle is provided with: a first flow passage formed so as to extend in the direction of insertion of the insertion section and connected at the proximal end to a fluid supply conduit provided within the insertion section a throttle section for reducing the inner diameter of the first flow passage to a predetermined diameter, the throttle section having a front stage provided connected to the distal end-side section of the first flow passage, the throttle section being formed extending in the direction of insertion of the insertion section a second flow passage provided connected to the rear stage of the throttle section and formed extending in the direction of insertion of the insertion section and a discharge flow passage for connecting a side section of the second flow passage and the discharge opening and extending substantially parallel to the distal end surface of the insertion section. The center axis of the second flow passage is offset relative to the center axis of the first flow passage in the direction opposite to the direction in which the fluid is discharged from the discharge opening.La présente invention concerne une buse dendoscope qui est agencée au niveau de lextrémité distale de la section dinsertion dun endoscope et qui comprend une ouverture dévacuation servant à évacuer le liquide le long de la surface de lextrémité distale de la section dinsertion. La buse dendoscope est dotée de : un premier passage découlement formé de façon à sétendre dans la direction de linsertion de la section dinsertion et relié au niveau de lextrémité proximale à un conduit dalimentation de liquide ménagé à lintérieur de la section dinsertion une section détranglement permettant de réduire le diamètre interne du premier passage découlement jusquà un diamètre pr
