Waterless mute closed drainage device for thoracic cavity
2008
An anhydrous and soundless thorax sealed drainage device comprises a drainage vessel, a one-way exhaust valve, a safety air-bag component and a pressure limiting valve; an air inlet of the one-way exhaust valve is in sealed connection with an air outlet of the drainage vessel; the air outlet is connected with the safety air-bag component through a first drainage tube; the safety air-bag component comprises an air-bag and a transparent cylinder body; the air-bag is arranged inside the transparent cylinder body; an upper interface and a lower interface of the transparent cylinder body are connected with the first drainage tube and a second drainage tube respectively; an air inlet port is formed on the side wall of the transparent cylinder body; one end of the pressure limiting valve is connected with the low interface of the safety air-bag component through the second drainage tube; and the other end of the pressure limiting valve is connected with a third drainage tube. The utility model is suitable for the continued negative pressure absorption thorax sealed drainage and the normal pressure thorax sealed drainage. Therefore, the utility model is suitable for treatment of pneumothorax, but also for treatment of pleural effusion.
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