Negative pressure drainage bottle for closed drainage of pleural cavity

Abstract

The invention provides a negative pressure drainage bottle for closed drainage of pleural cavity. The drainage bottle comprises a single bottle with double cavities, wherein the lower cavity with a larger cross section is a negative pressure liquid cavity, while the upper cavity with a smaller cross section is a drainage liquid cavity; a negative pressure pipe is connected between the drainage liquid cavity and the negative pressure liquid cavity; one end of the negative pressure pipe extends into the negative pressure liquid cavity, while the other end of the negative pressure pipe is connected with the upper part of the drainage liquid cavity; a liquid charging pipe is arranged in the negative pressure liquid cavity, and the liquid charging pipe and the negative pressure pipe are combined into a whole but not communicated with each other; a liquid feed hole is formed on the liquid charging pipe; and a drainage pipe joint is formed on the upper part of the drainage liquid cavity. According to the negative pressure drainage bottle, the pipe is prevented from being connected by mistake when the drainage bottle is used, the poor closing phenomenon can be possibly reduced, a negative pressure liquid column can be seen, and the drainage is convenient in carrying and prevented from falling because the cross section of the lower cavity is larger than that of the of upper cavity. The whole device is stable, and has the advantages of strong sealing property, convenience in pipe connection, simpleness in use, safety and high efficiency.

Description

technical field [0001] The invention relates to a novel negative pressure drainage bottle, in particular to a negative pressure drainage bottle for chest cavity closed drainage. Background technique [0002] At present, the closed thoracic drainage bottles commonly used in clinical medicine are all loosely combined with two bottles, so there are the following disadvantages: (1) each bottle has two connection ports respectively, and there are four connections, plus each bottle Most of them have bottle caps, and there are six connecting parts in total, which are very easy to make mistakes during use, and are also not conducive to sealing. (2) The cross-section of the negative pressure liquid bottle is too small. If too little liquid is added, when the liquid column rises with the negative pressure, the lower end of the negative pressure tube is easily exposed on the liquid surface and the air is sucked into the chest cavity. If too much liquid is added, It is not conducive to...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a negative pressure drainage bottle for chest cavity closed drainage, which solves the problem of poor sealing performance, easy wrong connection, poor drainage effect, easy pollution, poor placement stability, and inconvenient carrying of closed drainage bottles currently used clinically. And other issues

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