Anhydrous mute pleural cavity closed drainage device

Abstract

An anhydrous mute pleural cavity closed drainage device comprises a drainage bottle, a unidirectional exhaust valve, an air bag component and a pressure limiting valve; wherein the air inlet of the unidirectional exhaust valve is connected with the air outlet of the drainage bottle in a sealed way, the air outlet thereof is connected with the air bag component by a first drainage tube, the air bag component comprises an air bag and a transparent barrel, the air bag is positioned inside the transparent barrel, the upper connecting port and the lower connecting port of the transparent barrel are respectively connected with the first drainage tube and a second drainage tube in a sealed way, the side wall of the transparent barrel is provided with an air inlet port, one end of the pressure limiting valve is connected with the lower connecting port of the air bag component by the second drainage tube, and the other end of the pressure limiting valve is connected with a third drainage tube. The drainage device is applicable to both continuous negative pressure suction pleural cavity closed drainage and normal pressure pleural cavity closed drainage; and is suitable not only for treatment of pneumothorax, but also for treatment of pleural effusion.

Description

technical field [0001] The invention relates to a chest cavity closed drainage device, in particular to a waterless and silent chest cavity closed drainage device. Background technique [0002] Closed chest drainage is the routine treatment for pneumothorax. The traditional chest drainage device adopts normal pressure or continuous negative pressure suction water closed drainage method, which has the following defects: 1. The water seal is used to control the suction negative pressure and the exhaust speed of pleural gas, and the gas flows through the water to produce Air bubbles inevitably generate noise, especially when continuous negative pressure suction is used to treat pneumothorax. The noise destroys the quiet environment of diagnosis and treatment, which not only affects the patient's psychology and rest, but also disturbs the surrounding patients; 2. Water-sealed thoracic drainage, If the drainage device is toppled over, it may cause the outside gas to enter the ch...

AI Technical Summary

Problems solved by technology

The traditional chest drainage device adopts normal pressure or continuous negative pressure suction water closed drainage method, which has the following defects: 1. The water seal is used to control the suction negative pressure and the exhaust speed of pleural gas, and the gas flows through the water to produce Air bubbles inevitably generate noise, especially when continuous negative pressure suction is used to treat pneumothorax. The noise destroys the quiet environment of diagnosis and treatment, which not only affects the patient's psychology and rest, but also disturbs the surrounding patients; 2. Water-sealed thoracic drainage, If the drainage device is toppled over, it may cause the outside gas to enter the chest cavity in reverse, endangering the life safety of the patient; 3. The evaporation of water in the water-sealed chest drainage device may cause the hydraulic pressure of the suction negative pressure water seal device to drop, causing fluctuations in suction negative pressure, moisture Evaporation of the pleural cavity can also lead to a drop in hydraulic pressure in the water seal device that controls the discharge rate of pleural gas. Therefore, when using water-sealed pleural closed drainage, it is necessary to frequently observe the water volume in the water seal device and inject water in time to maintain a stable suction negative pressure and The discharge speed of pneumothorax, in addition, repeated water injection can increase the chance of iatrogenic infection and the workload of nursing; 4. During continuous negative pressure suction, the suction speed of pneumothorax cannot maintain a dynamic balance with the production speed, and there is a risk of over-suction; 5. The device contains water and needs to be anti-dumping, so it is inconvenient to carry

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