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Appearance of the endoscopic tapered sheath (EndoSheather). (a) Minimal difference in caliber between the inner catheter and the outer sheath at the device tip. (b) The outer sheath with a mesh braided structure which provides optimal kink resistance. Presence of a radiopaque marker at the tip of the outer sheath (blue arrowhead). The internal and external diameters of the outer sheath are 6.2 Fr (2.06 mm) and 7.2 Fr (2.44 mm), respectively.
