Chest closed drainage device for critical nursing

The utility model discloses a thoracic cavity closed drainage device for critical care, and relates to the field of critical medicine. The problems that when an existing drainage device is used, drainage tubes are prone to being wound together, the using effect of the device is affected, and the drainage tubes are prone to being blocked if many impurities exist are solved. A chest closed drainage device for critical care comprises a mounting seat, a clamping mechanism is arranged on the mounting seat, a liquid storage bottle is clamped in the clamping mechanism, a connecting cover is connected to the top of the liquid storage bottle, a pressure gauge and a drainage tube are arranged on the connecting cover, and a fixing mechanism is arranged on the upper surface of the right side of the clamping mechanism. The drainage tube penetrates through the fixing mechanism and is connected to the left side of the sealing mechanism, and the right side of the sealing mechanism is connected with a hollow tube. According t