Double-layer cuff trachea cannula

Abstract

The invention provides a double-layer cuff trachea cannula. Air vents are formed on a section of the cannula wall of the trachea cannula; an inner cuff is sleeved outside on a part of the trachea cannula, which is provided with the air vents; an outer cuff is sleeved outside the inner cuff; an air vent valve, an air injection bag and an air injection valve are sequentially connected to an air injection pipe; an air injection port is formed on the upper part of the air injection valve; the air injection pipe penetrates through the wall of the trachea cannula, and then reversely penetrates through the wall of the trachea cannula; and an air outlet of the air injection pipe is communicated with a gap between the inner cuff and the outer cuff. The double-layer cuff trachea cannula is conveniently inserted into the trachea of a human body, and the outer cuff closely contact the trachea wall of the human body, so that damage of too large cuff pressure to the trachea of the human body is reduced, or the phenomenon of air leakage caused by too small pressure and low sealing performance is avoided. The double-layer cuff trachea cannula is suitable to be used for trachea inserting and cutting in the therapeutic process of diseases of the human body.

Description

Technical field [0001] The invention provides appliances in the field of medical equipment, specifically a double-cuffed tracheal intubation. Background technique [0002] Tracheal intubation is a device inserted into the human trachea for ventilation during medical procedures. The structure is: a closed cuff is sheathed on the periphery of the intubation tube, and a gas injection tube is connected to the closed cuff. Most of the currently used cuffs are low-pressure and high-capacity balloons. During use, in order to prevent air leakage, a certain amount of gas must be injected into the cuff to produce a pressure greater than the airway pressure during ventilation. The role of closed airway. This pressure will undoubtedly act directly on the tracheal mucosa. If the pressure is small, air leakage is likely to occur. However, if the pressure is too high and the compression time is too long, serious consequences of ischemic necrosis of the tracheal mucosa will occur. In the cur...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings of the existing tracheal intubation, the present invention provides a double-cuff endotracheal intubation

The intubation tube makes a hole on the endotracheal tube, sets the inner cuff and the outer cuff at the opening, and the gas injection tube communicates with the gap between the two cuffs to solve the problem of inflating the endotracheal intubation cuff and preventing gas leakage in the airway and technical issues of airway mucosal injury

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