Manometer for balloon of trachea cannula

Abstract

The invention relates to a manometer for a balloon of a trachea cannula. The manometer comprises a hollow cavity (1) and a long pipe (2). The lower end of the hollow cavity (1) is communicated with the long pipe (2), one end of an air guide pipe (4) is communicated with the lower end of the hollow cavity (1), one end of a ventilation pipe (8) is communicated with the upper end of the hollow cavity (1), a one-way valve is arranged at the other end of the ventilation pipe (8), the ventilation pipe (8) is connected with a two-way joint (9), a sealing membrane (3) is disposed in the hollow cavity (1) and separates top space of the hollow cavity (1) from the air guide pipe (4) and the long pipe (2), and a card (5) is arranged in the long pipe (2) and can move axially in the long pipe (2). The manometer is small and simple in structure, low in weight, simple and convenient to operation, low in cost, convenient to use and free of a power supply. By means of the manometer, doctors can observe pressure changes of the balloon of the trachea cannula conveniently during operation to make accurate judgment and take adjusting measures timely, and operations of medical workers is greatly facilitated.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a tracheal intubation balloon manometer. Background technique [0002] When patients are treated clinically with a ventilator, it is necessary to insert a tracheal tube into the patient. There is usually a balloon at the front end of the tube, and the fixation and sealing of the tube can be achieved by inflating the balloon. A low pressure balloon is used. [0003] Obviously, the air pressure in the balloon plays a decisive role in the fixation and sealing effect of the intubation tube. If the air pressure in the balloon is too low, air leakage or even the intubation tube slippage will be caused during ventilator ventilation, which will affect the breathing quality of the patient and cause esophageal reaction. The fluid enters the lungs through the gap between the balloon and the inner wall of the trachea, thereby causing the risk of aspiration pneumonia, which great...

AI Technical Summary

Problems solved by technology

This method cannot accurately measure the air pressure of the balloon, because different conclusions will be drawn according to the feeling of each person

Another method is to use a pressure measuring instrument and connect the pressure measuring instrument to the one-way air valve to obtain an accurate value of the pressure. Although this method can objectively judge the internal pressure of the cuff, the pressure measuring instrument is expensive , and inconvenient to carry

[0005] At present, there is no safe and practical device in clinical practice to know in real time whether the amount of gas injected into the balloon is appropriate and whether it matches the pressure of the ventilator while inflating the balloon

Images