System comprising an applicator and a stent for a Eustachian tube

A system, comprising:

• a stent including a first end designed for arrangement on a tubal ostium and having a diameter of 4.5 to 5.5 mm, a second end designed for arrangement on a bony isthmus and having a diameter which is smaller than a diameter of the first end and ranging from 2.5 mm to 3.5 mm, and adjacent to the second end a length portion which decreases in diameter and extends over 20% to 40% of a total length of the stent;
• and
• an applicator for placing the stent in a Eustachian tube, said applicator having a proximal end for handling the applicator and a distal end for receiving the stent, said distal end including an inner part which has at least one area that is plastically deformable by manual force, for adaptation to a patient-dependent access angle of the Eustachian tube, and an outer tube which surrounds the inner part at a radial distance and which delimits an annular gap for receiving the stent, with the stent in the annular gap made of nitinol and being self-expanding, wherein the stent comprises a length having the diameter of the first end and extending from the first end to the length portion which decreases in diameter, with the length portion decreasing in diameter from the diameter of the first end to the diameter of the second end;
• and wherein the length having the diameter of the first end is a cylindrical length portion and the length portion which decreases in diameter is conical and provides a transition from the diameter of the first end to the diameter of the second end.