Diameter-variable multifunctional drainage tube

The invention discloses a diameter-variable multifunctional drainage tube which comprises a covering film and a fixator. A diameter-variable elastic structure is attached to the covering film, and the covering film and the elastic structure form a pipeline structure with the complete pipe wall; and the fixator is of a rod-shaped structure and is arranged in the pipeline structure in a penetrating mode. The diameter-variable multifunctional drainage tube is simple in structure, convenient to operate, good in drainage effect, small in wound outside the chest wall, small in scar formed in the later period, attractive in appearance and difficult to damage a patient in the operation process. The invention is applied to the technical field of medical instruments. 本发明公开了一种可变直径的多功能引流管，包括覆膜和固定器；所述覆膜上贴设有直径可变的弹性结构，所述覆膜和弹性结构形成管壁完整的管道结构；所述固定器为杆状结构，所述固定器穿设在管道结构中。结构简单、操作方便，引流效果好，胸壁外部伤口小，后期形成的疤痕小，外观美容，操作过程中，不易损伤患者。本发明应用于医疗器械技术领域。