Looking forward, radially sampling ultrasound endoscope with– a to the radial scanning certain annular ultrasound probe (4), the insertion part to the tip of a is arranged,– an end member (3), one of the objective optics (14a) for examining a lying in front of the insertion part examination zone as well as a front part has, whose diameter is smaller than the diameter of the remaining part of the end (3) and extending in the ultrasonic probe (4) is fitted,– a first centering pass part (46), which on the rear end of the ultrasonic probe (4) is formed, and– a second centering pass part (32) on the front end of the above-mentioned remaining part of the end (3) is designed,– the two lathe pass parts (32, 46) fit together in such a way that the interspace between them is greater than the intermediate space, which between the inner peripheral surface (41a) of the ultrasound probe (4) and the outer circumferential surface of the in the ultrasonic probe (4) fitted front part of the end (3) is present.
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