Non-water closed thoracic drainage apparatus

Abstract

The invention provides a non-water closed thoracic drainage apparatus. By arranging a first check valve and a second check valve, gas and liquid, which come from a thoracic cavity, can pass through the two check valves only in a one-way mode, so that backflow of the gas and the liquid is prevented; negative pressure is generated from a negative-pressure device, so that the gas and the liquid in the thoracic cavity are attracted by the negative-pressure device and are discharged out of the first check valve, and subsequently, the gas and the liquid of the thoracic cavity can be discharged more easily. An indicating device, which is in charge of indicating opening degree of the first check valve and / or the second check valve, is arranged on a drainage tube; through the indicating device, the opening degree of the first check valve and / or the second check valve can be intuitively observed; and on the basis of the valve opening degree, it can accurately judge whether a continuous exhausting operation is implemented on a patient or nor and a probable duration of exhausting. In addition, it can discover faults of the check valves, if occurring, in the fist time.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an anhydrous chest cavity closed drainage device. Background technique [0002] Closed thoracic drainage is a common method for treating pneumothorax and postoperative drainage in thoracic surgery. Existing drainage devices usually adopt a water-sealed method for closed drainage. Its structure is as follows: figure 1 As shown, it includes an airway tube 11 and a container 12. Water is provided in the container 12. The lower end of the airway tube 11 is located below the liquid level of the container 12. The gas and liquid from the chest cavity are discharged into the water through the lower end of the airway tube 11. The gas After the liquid and liquid are discharged, the lower end of the water sealing air guide tube 11 prevents the backflow of gas and liquid. But existing device, once container 12 tilts or other reasons, causes the lower end of airway tube 11 to be high...

AI Technical Summary

Problems solved by technology

However, in the existing device, once the container 12 is tilted or other reasons cause the lower end of the airway tube 11 to be higher than the container 12, the external air will enter the chest cavity along the airway tube 11, so it is very inconvenient when the patient moves

If the container 12 is placed too high, the water in the container 12 may enter the chest cavity along the airway after being toppled over, causing serious consequences

Therefore, the existing closed chest drainage device has many defects, is unstable and has a complicated structure

[0003] With the development of technology, an anhydrous thoracic drainage device has appeared, which is provided with a valve on the drainage tube. However, in the existing device, when the patient coughs and exhausts, it is often necessary to judge whether the chest cavity is exhausted based on the experience of the doctor, and Different observation angles will also cause inaccurate judgment results, so misjudgments often occur

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