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1. A tube element for a device for introduction into a body passage wherein the tube element comprises a first tube element end and a second tube element end, wherein a longitudinal dimension is formed between the first tube element end and the second tube element end, wherein the tube element has a sheath comprising an outer wall and an inner wall, wherein the sheath has an external diameter, wherein the longitudinal dimension amounts to at least ten times the external diameter, wherein a cross-sectional element of the sheath is arranged between the first tube element end and the second tube element end, wherein the cross-sectional element contains a plurality of opening arrangements, wherein the plurality of the opening arrangements extend along the longitudinal dimension from the first tube element end to the second tube element end, wherein each one of the plurality of the opening arrangements comprises a first opening containing an insert element and a second opening, wherein the second opening is of a cross-section which is configured as an annular opening, wherein an internal pressure of which can be changed by a pressure changing means, wherein the pressure changing means comprises a pressure source or a vacuum source, wherein each of the plurality of the opening arrangements has an intermediate wall, and wherein at least one of the plurality of the opening arrangements has a first intermediate wall, located between the first opening and the second opening, the first intermediate wall comprises a wall thickness that is smaller than a distance of the at least one opening arrangements from the outer wall or the inner wall.
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