Internal pressure stabilizing device for air bag of tracheal catheter

Abstract

A tracheal catheter air bag internal pressure stabilizing device relates to the technical field of medical instruments and is mainly structurally characterized in that a second container (2) is fixedly arranged below a first container (1), the bottom of the first container (1) is connected to the bottom of the second container (2) through a liquid connecting pipe (3), and the top of the second container (2) is connected to a first inlet of a tee joint (5) through a gas connecting pipe (4); a second inlet of the tee joint (5) is connected with an air bag inflating device (6), and an outlet of the tee joint (5) is connected with a tracheal catheter air bag (7); the first container (1) and the second container (2) are made of transparent materials; the first container (1) and the second container (2) are filled with part of liquid (8); a through hole (9) is formed in the position, higher than the liquid level, of the first container (1). According to the utility model, the internal pressure of the catheter air bag can be kept relatively stable, and the effect of continuous pressure monitoring can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a tracheal tube airbag internal pressure stabilizing device. Background Art

[0002] After endotracheal intubation using an endotracheal tube, gas needs to be injected into the catheter balloon to close the airway. If the balloon pressure is too low, it will not close the airway, increasing the risk of aspiration and ventilator-associated pneumonia; if the balloon pressure is too high, it will compress the airway and cause airway damage. Relevant guidelines recommend keeping the cuff pressure within 20-30 cmH2O to reduce the incidence of ventilator-associated pneumonia (VAP) and airway damage.

[0003] However, since the airway will contract and relax, the fixed gas volume in the airbag cannot be adjusted accordingly. When the airway relaxes, it may cause incomplete airway closure; when the airway contracts, it may compress the airway. Therefore, a device that can maintain a relatively stable pressure inside the airbag is urgently needed. Utility Model Content

[0004] The utility model aims to provide a tracheal tube balloon internal pressure stabilizing device which can maintain the internal pressure of the tube balloon relatively stable.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a tracheal tube balloon internal pressure stabilization device, characterized in that it includes a first container, a second container, a liquid connecting pipe, a gas connecting pipe, and a three-way connection, wherein:

[0006] The second container is fixedly arranged below the first container, the bottom of the first container is connected to the bottom of the second container through a liquid connecting pipe, the top of the second container is connected to the first inlet of the tee through a gas connecting pipe, the second inlet of the tee is used to connect to the airbag inflation device, and the outlet of the tee is used to connect to the endotracheal tube airbag;

[0007] The first container and the second container are made of transparent materials, which is convenient for observing and measuring the changes in the liquid level;

[0008] The first container and the second container contain part of the liquid, and when the endotracheal tube balloon is filled with gas at a predetermined pressure, the liquid level in the first container is maintained at a certain height higher than the liquid level in the second container;

[0009] A through hole is provided at a position above the liquid level of the first container. The through hole can be provided on the side wall of the container or on the top of the container.

[0010] In a specific implementation, a colored liquid may be used.

[0011] Furthermore, scale lines are provided on the side walls of the first container and the second container.

[0012] In this way, it is convenient to more accurately judge the changes in the internal pressure of the endotracheal tube cuff through the liquid level change data, thereby playing a role in continuous pressure monitoring.

[0013] Furthermore, a height difference H between the liquid level in the first container and the liquid level in the second container is 20 to 30 cm.

[0014] The beneficial effects of the utility model are:

[0015] The utility model has a simple structure and is easy to use. It cleverly utilizes the pressure generated by the height difference of the liquid levels in the first container and the second container to achieve the function of maintaining a relatively stable pressure inside the endotracheal tube balloon. At the same time, it can also play a role in continuous pressure monitoring by observing the changes in the liquid level. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] Figure 1 A specific embodiment of the utility model is shown, a tracheal tube balloon internal pressure stabilization device, comprising a first container 1, a second container 2, a liquid connecting pipe 3, a gas connecting pipe 4, and a three-way 5, wherein:

[0019] The second container 2 is fixedly arranged below the first container 1, the bottom of the first container 1 is connected to the bottom of the second container 2 through a liquid connecting pipe 3, the top of the second container 2 is connected to the first inlet of the tee 5 through a gas connecting pipe 4, the second inlet of the tee 5 is used to connect to the airbag inflation device 6, and the outlet of the tee 5 is used to connect to the endotracheal tube airbag 7;

[0020] The first container 1 and the second container 2 are made of transparent materials. Part of the liquid 8 is contained in the first container 1 and the second container 2. When the endotracheal tube balloon 7 is filled with gas at a predetermined pressure, the liquid level in the first container 1 is maintained at a certain height higher than the liquid level in the second container 2. The height difference H between the liquid level in the first container 1 and the liquid level in the second container 2 is 20 to 30 cm.

[0021] A through hole 9 is provided on the side wall of the first container 1 above the liquid level;

[0022] Graduation lines are also provided on the side walls of the first container 1 and the second container 2 .

[0023] The usage and working principle of the utility model are as follows:

[0024] After tracheal intubation, a certain amount of gas is injected into the tracheal tube airbag 7 on the trachea 10 through the tee 5 and the connecting tube connecting the tee 5 and the tracheal tube airbag 7 using the airbag inflation device 6 to maintain the internal pressure of the tracheal tube airbag 7 between 20-30 cmH2O; since the pressure generated by the liquid level difference H between the first container 1 and the second container 2 is equal to the internal pressure of the tracheal tube airbag 7, the liquid level difference H between the first container 1 and the second container 2 is also maintained between 20-30 cm, that is, in actual operation, the liquid level difference H can be measured by using a ruler during the gas injection process, and when the liquid level difference H reaches a predetermined height between 20-30 cm, such as 25 cm, it can be determined that the internal pressure of the tracheal tube airbag 7 has reached the required 25 cmH2O;

[0025] The through hole 9 on the first container 1 ensures that the air pressure above the liquid surface in the first container 1 is always equal to the atmospheric pressure.

[0026] When the internal pressure of the endotracheal tube balloon 7 decreases, the liquid level in the second container 2 will rise due to the pressure difference, and gas will be added to the endotracheal tube balloon 7 to maintain the internal pressure of the endotracheal tube balloon 7; conversely, when the internal pressure of the endotracheal tube balloon 7 increases, the liquid level in the second container 2 will decrease, reducing the internal pressure of the endotracheal tube balloon 7, thereby maintaining the internal pressure of the endotracheal tube balloon 7 relatively stable.

[0027] In addition, by observing the changes in the liquid level in the second container 2, continuous pressure monitoring can be performed.

[0028] The above embodiments of the utility model are merely examples for explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes and modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the utility model are still within the scope of protection of the utility model.

Claims

1. A tracheal tube balloon internal pressure stabilization device, characterized in that: It comprises a first container (1), a second container (2), a liquid connecting pipe (3), a gas connecting pipe (4), and a tee (5), wherein: The second container (2) is fixedly arranged below the first container (1); the bottom of the first container (1) is connected to the bottom of the second container (2) via a liquid connecting pipe (3); the top of the second container (2) is connected to a first inlet of a tee (5) via a gas connecting pipe (4); the second inlet of the tee (5) is used to connect to an airbag inflation device (6); and the outlet of the tee (5) is used to connect to an endotracheal tube airbag (7); The first container (1) and the second container (2) are made of transparent material; The first container (1) and the second container (2) contain a portion of liquid (8); The first container (1) is provided with a through hole (9) at a position above the liquid level.

2. The endotracheal tube balloon internal pressure stabilization device according to claim 1, characterized in that: Scale lines are also provided on the side walls of the first container (1) and the second container (2).

3. The endotracheal tube balloon internal pressure stabilization device according to claim 1, characterized in that: The height difference H between the liquid level in the first container (1) and the liquid level in the second container (2) is 20 to 30 cm.

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