| 摘要 |
This invention relates to a novel and improved thoracic drainage device characterized by drainage directly into an open collection bottle with an inlet connectable to receive air and fluid from the thoracic cavity, an outlet from the bottle connected to a negative pressure relief valve, positive pressure relief valve, a one-way valve, and an adjustable means of suction control. A negative pressure indicator will indicate a rise, fall, or holding pressure within the intra pleural cavity. An air leak detector positioned downstream of the negative pressure indicator and combined with a common baffled reservoir prevents excessive splashing during air leak detection. Both the negative pressure and positive pressure relief valves are located downstream of the reservoir to relieve any pressure build up with the reservoir. The one-way valve is provided after the pressure relief valves to permit the escape of air, but preventing any backflow of air to enter the device. A suction control means is located downstream of the one-way valve to permit regulated suction to be applied to the device.
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