The invention relates to a spreader structure (10) for introducing into a hollow organ, comprising spreader rods (12), which radiate from a first connection section (14) essentially in the longitudinal direction (36) of the spreader structure (10) up to a second connection section (16), are distributed around the periphery of the spreader structure (10) and can be placed against a wall of a hollow organ by means of radial expansion. The aim of the invention is to provide a spreader structure (10), which is versatile and cost-effective to produce. To achieve this, the spreader rods (10) have at least one zone (22) running in the longitudinal direction, which has a reduced flexural strength in comparison to neighboring zones (20, 24). The invention also relates to the use of said spreader structure, to a spreader device and to a method for positioning a spreader structure.