Tracheal cannula with air bag pressure monitoring function

Abstract

The invention discloses a tracheal cannula with an air bag pressure monitoring function. The tracheal cannula comprises a main cannula, an air bag, an inflating pipe and an inflating device, wherein the air bag is located on the peripheral wall of the lower part of the main cannula, and the inflating device communicates with the air bag through the inflating pipe. The tracheal cannula further comprises a pressure measuring unit, wherein a shell body of the pressure measuring unit has a cavity, a piston is arranged in the cavity, an air inlet is formed in a roof of the shell body and communicates with the inflating pipe and a cavity above the piston, the bottom wall of the piston is connected with a pressure measurement column, the bottom end of the pressure measurement column penetrates through the shell body, and pressure scale value marks are arranged on the circumferential surface of the pressure measurement column. According to the tracheal cannula with the air bag pressure monitoring function, pressure of the air bag inserted into a trachea is visually displayed through the pressure measuring unit, inflating by medical care personnel is controllable, the pressure of the air bag can be adjusted in time through viewing during daily nursing, and thus, a real-time monitorable effect is exerted.

Description

technical field [0001] The invention relates to the field of medical appliances, more specifically, it relates to an endotracheal intubation catheter with the function of monitoring air bag pressure. Background technique [0002] Endotracheal intubation is a method of inserting a special endotracheal tube through the oral cavity or nasal cavity and into the trachea or bronchi through the glottis to provide the best conditions for unobstructed airway, ventilation and oxygen supply, and airway suction. important measures. [0003] The airbag should be inflated to just close the gap between the catheter and the tracheal wall. If the amount of inflation is insufficient, the catheter will easily fall off, and respiratory secretions will flow down the wall of the sac. Blindly injecting a large amount of air into the airbag will cause ischemic necrosis of the tracheal wall. Normally, the airbag pressure should be maintained at 25 ~35cmH20. However, in clinical practice, the air b...

AI Technical Summary

Problems solved by technology

However, in clinical practice, the balloon will gradually loosen after a period of time, and cannot effectively close the gap between the inner wall of the trachea and the endotracheal tube

At the same time, it is necessary to use an extension tube to externally connect the airbag pressure gauge for aseptic operation during pressure measurement, which is time-consuming and labor-intensive. Even if the gas pressure in the airbag is measured regularly, it is difficult to achieve real-time monitoring

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