| 摘要 |
An aid system includes a base element, an expandable tube arrangement including at least one tube portion to form a tube run extending between a base portion assigned to the base element and a head portion at a free end of the tube run, and a pressurized fluid system that fills the tube portion with pressurized fluid, wherein (i) the tube portion is guided between a tube store and the head portion by a tube guiding device with a tube guiding opening constricting a cross section of the tube portion, and (ii) at least one pressurized fluid inlet leading into the interior of the tube portion in the region of the head portion.
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