Airflow flushing system on artificial airway airbag and airway management instrument

Abstract

The invention discloses an airflow flushing system on an artificial airway airbag and an airway management instrument. The airflow flushing system comprises a guide pipe piece (1) and an airflow supply device (2), the airflow supply device is provided with an outward flushing flow pipe opening and a pressure monitoring pipe opening, and the flushing flow pipe opening can output warm and wet gas outwards; the flushing flow pipe orifice is communicated to a flushing pipe (13) of the conduit piece, and the pressure monitoring pipe orifice is used for monitoring the pressure of input gas outwards; and the pressure monitoring pipe orifice is communicated to a suction pipe (14) of the catheter piece. By the adoption of the airflow flushing system, the upper portion of the air bag of an airway catheter receiving patient is subjected to warm air blowing, the normal breathing state is simulated by blowing warm air, and therefore the upper respiratory tract mucosa above the air bag is kept warm, mucosa damage is avoided, and the respiratory tract mucosa is prevented from being damaged. And therefore, the swallowing and glottis functions of a patient receiving the airway catheter cannot be disabled.

Description

Technical Field

[0001] The present invention relates to a medical device for patients with tracheal tubes, in particular to an artificial airway airbag upper airflow flushing system and an airway management instrument. Background Art

[0002] Endotracheal intubation is a medical procedure in which a special endotracheal tube is inserted into the trachea to establish an artificial airway and help the patient maintain respiratory function.

[0003] The core component of the endotracheal tube is a catheter 1 (such as Figure 1 The catheter 1 is divided into two types according to different application scenarios: one is an endotracheal tube fitting and the other is a tracheostomy tube fitting. The endotracheal tube fitting is used in rescue and short-term mechanical ventilation scenarios, and the tracheostomy tube fitting is used in long-term airway management scenarios.

[0004] The two types of catheters 1 described above share the same basic structure. Specifically, both endotracheal and tracheostomy tubes typically include a tube body and a balloon 16. The balloon 16, located at the front end of the tube body, seals the airway after inflation, preventing air leaks and aspiration. The tube body is composed of four pipelines: a main ventilation tube 11, an inflation tube 12, an irrigation tube 13, and a suction tube 14.

[0005] Those skilled in the art will understand that a connector with corresponding function is provided at the rear end of each pipeline. For example, a ventilator connector 15 is provided at the rear end of the main ventilation tube 11, and the main ventilation tube 11 is connected to the ventilator or anesthesia machine through the ventilator connector 15.

[0006] In the prior art, a special device is provided for the inflation tube 12 , the flushing tube 13 , the suction tube 14 , and the air bag 16 , and the name of the device is “airway management device”.

[0007] It should be noted that the airway management instrument and the ventilator are two separate devices. The main ventilation tube 11 is connected to the ventilator pipeline through the ventilator connector 15, while the inflation tube 12, flushing tube 13, and suction tube 14 are connected to the airway management instrument. However, the inflation tube 12 is directly connected to the airbag 16, and the airbag 16 is inflated through the inflation tube 12. The airbag 16 is actually arranged at the front end of the main ventilation tube 11, and the rear end of the inflation tube 12 is connected to the airway management instrument through a connector. The front end of the inflation tube 12 is connected to the airbag 16, and the inflation tube 12 is used to inflate or deflate the airbag 16. The rear end of the flushing tube 13 is connected to the airway management instrument through a connector, and the front end of the flushing tube 13 is located at an opening above the airbag (such as Figure 2The rear end of the suction tube 14 is connected to the airway management instrument through a joint, and the front end of the suction tube 14 is opened at a position above the air bag (as indicated by the arrow B1). Figure 2 (as indicated by arrow B2).

[0008] When using the catheter component 1 for intubation, the main unit is connected to the outer part of the tracheal tube, the air bag tube is connected to the connection part of the inflation tube 12 of the airway management instrument to maintain the air bag pressure of the artificial airway, the suction tube 14 is used to connect to the suction port of the tracheal tube to attract secretions and carbon dioxide sampling, and the flushing tube 13 is used to connect to the ventilation port of the tracheal tube to flush with saline.

[0009] The current problem is:

[0010] After the patient is intubated or tracheotomized using the catheter assembly 1, due to the indwelling of an artificial airway and the use of sedatives, there is no warm gas in the patient's upper respiratory tract to exchange airflow with the airway below the airbag, and secretions accumulate above the endotracheal tube, resulting in damage to the upper respiratory tract mucosa, loss of the upper respiratory tract's heating and humidification functions, and loss of glottal function, especially swallowing function. Summary of the Invention

[0011] The purpose of the present invention is to provide an artificial airway bag airflow flushing system and airway management instrument, which are used to purge warm air above the airbag of patients receiving airway tubes to maintain the swallowing and glottal function of patients receiving airway tubes.

[0012] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0013] An airflow flushing system on an artificial airway bag comprises a catheter component, wherein the catheter component comprises a main ventilation tube, an inflation tube, a flushing tube, a suction tube and an air bag; the airflow flushing system further comprises an airflow supply device, wherein the airflow supply device has an external flushing airflow pipe port, and the flushing airflow pipe port can output warm and moist air to the outside; the flushing airflow pipe port is connected to the flushing tube of the catheter component.

[0014] Furthermore, the air flow supply device also has an external pressure monitoring pipe opening, and the pressure monitoring pipe opening is used to monitor the pressure of the input gas externally; the pressure monitoring pipe opening is connected to the suction tube of the catheter component.

[0015] Furthermore, the air flow supply device is provided with a warm air flow output module and a pressure monitoring module; the warm air flow output module is used to output warm and moist air to the outside through the air flow pipe port; the pressure monitoring module is used to monitor the pressure of the input gas to the outside through the pressure monitoring pipe port.

[0016] Furthermore, a main control module is provided in the air flow supply device, and the main control module can interact with the warm air flow output module and the pressure monitoring module for data signals. The pressure monitoring module transmits signals to the main control module, and the warm air flow output module is controlled by the main control module.

[0017] Furthermore, data signal interaction is established between the main control module of the airflow supply device and the external airway management instrument and ventilator.

[0018] Furthermore, a control program is provided in the main control module, and the control functions of the control program include: Function 1, when the pressure monitoring module in the airflow supply device detects that the pressure above the airbag is too high through the suction tube, the warm airflow output module in the airflow supply device is controlled to stop running and no longer output airflow to the outside; Function 2, when the airway management instrument starts to suck the secretions above the patient's airbag through the suction tube, the main control module in the airflow supply device controls the warm airflow output module to stop running, thereby stopping the output of airflow; when the airway management instrument stops sucking the secretions above the patient's airbag through the suction tube, the main control module in the airflow supply device controls the warm airflow output module to start running, thereby starting to output airflow; Function 4, when it is necessary to loosen the secretions above the airbag, the warm airflow output module of the airflow supply device is controlled to start running. The flow output module starts running and outputs high-pressure continuous pulse oscillation to provide medical moist heat spray, which moistens and loosens the viscous sputum attached to the tracheal wall and facilitates drainage; Function 5, sets the working mode for the warm airflow output module in the airflow supply device, and then controls the airflow supply device to operate according to the set working mode. The set working modes include working mode 1 and working mode 2: in working mode 1, the warm airflow output module continuously outputs a warm airflow with a fixed and continuous flow rate; in working mode 2, the warm airflow output module in the airflow supply device performs rhythmic airflow output according to the air supply rhythm of the ventilator. When the ventilator is in the controlled ventilation state, the warm airflow output module in the airflow supply device starts to output airflow. When the ventilator is in the stopped air supply state, the warm airflow output module in the airflow supply device stops outputting airflow.

[0019] Furthermore, the flushing air flow pipe port is connected to the flushing pipe of the catheter component, specifically, the flushing air flow pipe port is connected to the flushing pipe of the catheter component through a three-way valve; a control program is provided in the main control module, and the control functions of the control program include: function 3, when it is necessary to flush saline above the patient's air bag, control the switching of the three-way valve to connect the flushing pipe with the original interface; when it is necessary to purge warm gas above the patient's air bag, control the switching of the three-way valve to connect the flushing pipe with the flushing air flow pipe port of the airflow supply device.

[0020] Furthermore, a pressure relief valve is provided on the suction tube of the catheter member.

[0021] Furthermore, the catheter is a tracheal tube or a tracheotomy tube.

[0022] An airway management instrument is provided with the airflow flushing system as described above.

[0023] Compared with the prior art, the artificial airway bag airflow flushing system and airway management device of the present invention have the following beneficial effects:

[0024] By blowing warm gas above the airbag of patients receiving airway tubes, the normal breathing state is simulated by blowing warm airflow, so that the upper respiratory tract mucosa above the airbag remains warm, avoiding mucosal damage, and thus ensuring that the swallowing and glottic function of patients receiving airway tubes will not be disabled. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of a conduit member in the prior art;

[0026] Figure 2 for Figure 1 An enlarged schematic diagram of the area indicated by arrow A;

[0027] Figure 3 It is a structural schematic diagram of the airflow flushing system on the artificial airway airbag of the present invention. DETAILED DESCRIPTION

[0028] Before introducing the specific implementation methods, the following professional terms related to the present invention are introduced:

[0029] 1) The three-way valve mentioned in this article is a pipeline device in the prior art. The three-way valve has three ports, one of which is called the main port and the other two are called conversion ports;

[0030] For the convenience of description, in this embodiment, the two conversion ports are defined as "first conversion port" and "second conversion port" respectively;

[0031] It should be noted that, in this embodiment, the three-way valves used are all electrically controlled valves.

[0032] In order to facilitate a clear and accurate description of the technical solution in the following text, the following definitions are made in advance:

[0033] Definition 1: The term "above the airbag" as used herein refers to the area in the patient's trachea above the airbag 16 when "the catheter 1 is inserted into the patient's trachea and the airbag 16 is inflated so that the airbag 16 is inflated and rests against the inner wall of the trachea", such as Figure 1 Indicated by arrow A.

[0034] The specific embodiments of the present invention are further described below:

[0035] This embodiment provides an artificial airway bag airflow flushing system. The innovation of this airflow flushing system is that it utilizes the existing catheter 1 and uses warm air to purge the upper part of the bag of the patient receiving the airway tube to avoid upper airway function damage.

[0036] See also Figure 3 The airflow flushing system of this embodiment includes an existing catheter 1. In this embodiment, the catheter 1 is an endotracheal tube, while in other embodiments, the catheter 1 can also be a tracheostomy tube.

[0037] The catheter 1 comprises a main ventilation tube 11, an inflation tube 12, a flushing tube 13 and a suction tube 14. For details, please refer to the introduction in the background technology. The warm gas used for purging can be low-flow heated and humidified air or low-concentration heated and humidified oxygen.

[0038] The air flow flushing system is further provided with an air flow supply device 2 for the conduit 1. The air flow supply device 2 has two external pipe openings, namely, a flushing pipe opening and a pressure monitoring pipe opening.

[0039] The flushing air flow pipe port is connected to the flushing pipe 13 of the catheter part 1 through a three-way pipe fitting (the three-way pipe fitting here is actually a three-way valve, which will be described in detail later), and the pressure monitoring pipe port is connected to the suction pipe 14 of the catheter part 1 through a three-way pipe fitting.

[0040] It should be noted that the original connectors of the flushing tube 13 and the suction tube 14 are still retained, and the flushing air flow pipe port and the pressure monitoring pipe port of the air flow supply device 2 are inserted into the flushing tube 13 and the suction tube 14, which does not affect the normal function of the catheter component 1.

[0041] Corresponding to the two nozzles mentioned above, a warm air flow output module ( Figure 3 The box marked "Gas Supply" in the Figure 3 box labeled “pressure measurement” in the ).

[0042] It should be noted that the "warm and moist airflow output module" is a hardware device known in the prior art and does not have a specific professional name. Its function is to "output warm and moist air." This warm and moist airflow output module is composed of a water mist generator and an electric heater. The function of the water mist generator is similar to that of a humidifier in the prior art: it produces water mist, i.e., moist air. The electric heater then heats the water mist generated by the water mist generator and outputs it as warm and moist air.

[0043] It should be noted that the “pressure monitoring module” is also a hardware device in the prior art, and its function is to “monitor gas pressure”.

[0044] In this embodiment, the warm and moist air flow output module is used to output warm and moist air to the outside through the air flow nozzle, and the pressure monitoring module is used to monitor the pressure of the input gas to the outside through the pressure monitoring nozzle.

[0045] The air flow supply device 2 is also equipped with a main control module ( Figure 3 The main control module is actually a microcomputer controller (usually a single chip microcomputer).

[0046] In this embodiment, the warm and moist airflow output module and the pressure monitoring module are both connected to the main control module for data signal communication. The main control module is capable of exchanging data signals with the warm and moist airflow output module and the pressure monitoring module. The pressure monitoring module transmits signals to the main control module, and the warm and moist airflow output module is controlled by the main control module. The main control module can control the start and stop of the warm and moist airflow output module and the temperature, humidity, flow rate, etc. of the output gas based on the air pressure data monitored by the pressure monitoring module.

[0047] The main control module also has multiple external data interfaces, and the main control module can also exchange data signals with external devices through the external data interfaces. For example, the three-way valve 3 to be mentioned later in the text exchanges data signals with the main control module through the data interface, and the main control module can control the switching action of the three-way valve 3, that is, the three-way valve 3 is controlled by the main control module. For another example, the main control module of the airflow supply device 2 to be mentioned later establishes data signal interaction with the airway management instrument, and the airway management instrument also exchanges data signals with the main control module through the data interface. For another example, the main control module of the airflow supply device 2 to be mentioned later in the text exchanges data signals with the ventilator, and the ventilator also exchanges data signals with the main control module through the data interface.

[0048] It should be noted that the previously mentioned "the flushing air flow pipe outlet is connected to the flushing pipe 13 of the conduit member 1 through a three-way pipe fitting" is a three-way pipe fitting used here. A three-way valve 3 is used, and the flushing air flow pipe outlet of the air flow supply device 2 is connected to the flushing pipe 13 of the conduit member 1 through the three-way valve 3.

[0049] Specifically, the main port and the first conversion port of the three-way valve 3 are connected in series in the flushing pipe 13, and the main port is at the front end side of the flushing pipe 13, and the first conversion port is at the rear end side of the flushing pipe 13. The flushing air flow pipe port of the air flow supply device 2 is connected to the second conversion port of the three-way valve 3. In this way, the flushing pipe 13 can be controlled to switch to the "original interface" or the "flushing air flow pipe port of the air flow supply device 2".

[0050] It should be noted that the three-way valve 3 is controlled by the main control module in the air flow supply device 2, that is, the main control module can control the switching of the three-way valve 3 to connect the flushing pipe 13 with the original interface, or to connect the flushing pipe 13 with the flushing air flow pipe port of the air flow supply device 2.

[0051] In addition, a pressure relief valve 4 is provided on the suction tube 14 of the catheter member 1. The function of the pressure relief valve 4 is to ensure that the air pressure above the airbag is not too high, thereby avoiding damage to the patient.

[0052] Those skilled in the art will appreciate that some control programs may be provided in the main control module, and some specific control effects may be achieved by executing these control programs.

[0053] Specifically,

[0054] 1) When the pressure monitoring module in the air supply device 2 detects that the pressure above the airbag is too high through the suction tube 14, the warm air flow output module in the air supply device 2 is controlled to stop running and no longer output air to the outside, and at the same time, the pressure is released through the drainage tube.

[0055] In this way, it is possible to prevent excessive airflow from backflowing into the patient's stomach, and to prevent excessive airflow from causing excessive pressure between the airbag and the glottis, which may lead to damage to the mucosal airway.

[0056] 2) Controlling the "flow output from the flushing airflow tube" to stagger the "airway management instrument to suction secretions above the patient's airbag through the suction tube 14".

[0057] Here is an introduction to the existing technology: Under normal intubation, the suction tube 14 is not always in the state of "attracting secretions", but is intermittent. Usually, the "attracting secretions" action is started at a certain interval, and the suction action is stopped after a period of time, and then started and stopped periodically.

[0058] In this embodiment, the following control program can be set in the main control module:

[0059] When the airway management device starts to suck the secretions above the patient's airbag through the suction tube 14, the main control module in the airflow supply device 2 controls the warm airflow output module to stop running, thereby stopping the output of airflow;

[0060] When the airway management instrument stops suctioning the secretions above the patient's airbag through the suction tube 14, the main control module in the airflow supply device 2 controls the warm airflow output module to start running, thereby starting to output airflow.

[0061] The benefits of this control are:

[0062] Without affecting the suction and drainage of secretions above the airbag, and in the intervals between secretion suction, use heated and humidified gas to flush the upper respiratory tract above the airbag to moisten the mucosa above the airbag and simulate the breathing of a normal person in preparation for restoring the normal function of the glottis and swallowing.

[0063] It should be noted that in order to achieve the above-mentioned control effect, in this embodiment, data signal interaction is established between the main control module of the airflow supply device 2 and the airway management instrument. The main control module of the airflow supply device 2 can obtain the "start and stop suction of secretions" signal from the airway management instrument to trigger the main control module to control the warm airflow output module to stop or start running; the specific methods of implementing "data signal interaction" are all existing technical means, which are achievable for those skilled in the art, so they will not be repeated here.

[0064] 3) When it is necessary to flush saline above the patient's air bag, control the switching of the three-way valve 3 to connect the flushing tube 13 with the original interface. When it is necessary to purge warm gas above the patient's air bag, control the switching of the three-way valve 3 to connect the flushing tube 13 with the flushing air pipe port of the air flow supply device 2.

[0065] A three-way valve 3 is provided and controlled to switch the connection direction of the flushing pipe 13, so as to avoid the mixing of saline and air flow.

[0066] 4) When it is necessary to loosen the secretions above the airbag, the warm airflow output module in the airflow supply device 2 can be controlled to start running, output high-pressure continuous pulse oscillation to provide medical moist heat spray to moisten and loosen the viscous sputum attached to the tracheal wall, making drainage easier.

[0067] 5) For the warm air flow output module in the air flow supply device 2, set the working mode, and then control the air flow supply device 2 to operate according to the set working mode.

[0068] Specifically, the working mode of the settings is as follows:

[0069] Working mode 1:

[0070] In this operating mode, the warm air flow output module continuously outputs a fixed and continuous flow rate of warm air flow. The applicable scenario of this operating mode 1 is as a standard mode for patients to inhale oxygen through a tracheotomy mask after stopping the ventilator.

[0071] Working mode 2:

[0072] In this working mode 2, the warm airflow output module in the airflow supply device 2 performs rhythmic airflow output according to the air supply rhythm of the ventilator. When the ventilator is in the controlled ventilation state, the warm airflow output module in the airflow supply device 2 starts to output airflow. When the ventilator is in the stopped air supply state, the warm airflow output module in the airflow supply device 2 stops outputting airflow.

[0073] It should be noted that the ventilator will deliver air to the patient according to the settings. However, just like breathing, inhalation must be followed by exhalation. During controlled ventilation, the ventilator delivers air to the patient while the airflow supply device 2 delivers air simultaneously. When controlled ventilation ends, the ventilator and the airflow supply device stop delivering air. The purpose of setting operating mode 2 is to simulate normal breathing. Ventilator delivery is commonly referred to as "controlled ventilation."

[0074] The applicable scenario of this working mode 2 is: when the patient is mechanically ventilated, the patient is in a sedated state, and there is little spontaneous breathing of the patient, and the normal breathing state is simulated.

[0075] It should be noted that, in this embodiment, data signal interaction is established between the main control module of the airflow supply device 2 and the ventilator. The main control module of the airflow supply device 2 can obtain exhalation and inhalation signals from the ventilator to trigger the main control module to control the warm airflow output module to "start outputting airflow" and "stop outputting airflow"; the specific methods of implementing "data signal interaction" are all existing technical means, which are achievable for those skilled in the art, so they will not be repeated here.

[0076] The advantages of the airflow flushing system of this embodiment are:

[0077] By blowing warm gas above the airbag of patients receiving airway tubes, the upper respiratory tract mucosa above the airbag is kept warm and mucosal damage is avoided, solving the problem of "normal airflow exchange in the upper respiratory tract area due to airbag blockage", thereby further solving the patient's swallowing and glottal dysfunction problems. By blowing warm air to simulate the normal breathing state, the good effect of "maintaining airflow exchange in the upper respiratory tract and keeping the mucosal and swallowing functions normal" is achieved.

[0078] It should be noted that the airflow flushing system of this embodiment can be used as a modular accessory to match the airway management device mentioned above, thereby increasing the functionality of the airway management device.

[0079] Finally, it should be noted that:

[0080] Regarding the airflow provided by the warm airflow output module of the airflow supply device 2:

[0081] First, the flow rate of the gas blown into the airbag must not be too high and must be maintained at a low flow rate;

[0082] Second, the pressure of the gas blown into the upper part of the air bag must be monitored and the pressure must be relieved, otherwise high pressure will cause damage to the subglottis;

[0083] Third, the blowing gas should be warm air or 21-40% oxygen.

[0084] In addition, in order to restore the patient's swallowing function, "sensory stimulation" can also be used, such as cold and heat stimulation, to trigger the swallowing reflex.

[0085] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An airflow flushing system for an artificial airway airbag, the airflow flushing system comprising a catheter component (1), wherein the catheter component (1) comprises a main ventilation tube (11), an inflation tube (12), a flushing tube (13), a suction tube (14) and an airbag (16); Its characteristics are: The air flow flushing system further comprises an air flow supply device (2), wherein the air flow supply device (2) has an outward flushing air flow pipe opening, and the flushing air flow pipe opening is capable of outputting warm and moist air to the outside; The flushing air flow pipe opening is connected to the flushing pipe (13) of the conduit member (1).

2. The artificial airway airbag upper airflow flushing system according to claim 1, characterized in that: The air flow supply device (2) further comprises an external pressure monitoring nozzle, and the pressure monitoring nozzle externally monitors the pressure of the input gas; The pressure monitoring tube port is connected to the suction tube (14) of the catheter member (1).

3. The artificial airway airbag flushing system according to claim 2, characterized in that: The airflow supply device (2) is provided with a warm airflow output module and a pressure monitoring module; The warm and moist air flow output module is used to output warm and moist air to the outside through the rushing air flow pipe port; The pressure monitoring module is used to monitor the pressure of the input gas externally through the pressure monitoring pipe port.

4. The artificial airway airbag airflow flushing system according to claim 3, characterized in that: The airflow supply device (2) is provided with a main control module, and the main control module is capable of performing data signal interaction with the warm airflow output module and the pressure monitoring module. The pressure monitoring module transmits signals to the main control module, and the warm airflow output module is controlled by the main control module.

5. The artificial airway airbag flushing system according to claim 4, characterized in that: Data signal interaction is established between the main control module of the airflow supply device (2) and the external airway management device and ventilator.

6. The artificial airway bag airflow flushing system according to claim 5, characterized in that: The main control module is provided with a control program, and the control functions of the control program include: Function 1: When the pressure monitoring module in the air supply device (2) detects that the pressure above the air bag is too high through the suction tube (14), the warm air flow output module in the air supply device (2) is controlled to stop operating and no longer output air flow to the outside; Function 2: When the airway management device starts to suck the secretions above the patient's airbag through the suction tube (14), the main control module in the airflow supply device (2) controls the warm airflow output module to stop running, thereby stopping the output of airflow; when the airway management device stops sucking the secretions above the patient's airbag through the suction tube (14), the main control module in the airflow supply device (2) controls the warm airflow output module to start running, thereby starting to output airflow; Function 4, when it is necessary to loosen the secretions above the airbag, the warm airflow output module of the airflow supply device (2) is controlled to start operation, outputting high-pressure continuous pulse oscillation to provide medical moist heat spray, so as to moisten and loosen the sticky sputum attached to the tracheal wall, thereby facilitating drainage; Function 5, for the warm air flow output module in the air flow supply device (2), set the working mode, and then control the air flow supply device (2) to operate according to the set working mode, The working modes that can be set include working mode 1 and working mode 2: In working mode 1, the warm air flow output module continuously outputs warm air flow at a fixed and continuous flow rate; In working mode 2, the warm air flow output module in the air flow supply device (2) outputs the air flow rhythmically according to the air supply rhythm of the ventilator. When the ventilator is in the controlled ventilation state, the warm air flow output module in the air flow supply device (2) starts to output air flow. When the ventilator is in a state of stopping air supply, the warm air flow output module in the air flow supply device (2) stops outputting air flow.

7. The artificial airway airbag flushing system according to claim 5, characterized in that: The flushing air flow pipe opening is connected to the flushing pipe (13) of the conduit member (1), and specifically, the flushing air flow pipe opening is connected to the flushing pipe (13) of the conduit member (1) through a three-way valve; The main control module is provided with a control program, and the control functions of the control program include: Function 3: When it is necessary to flush saline above the patient's air bag, the three-way valve (3) is controlled to switch so that the flushing tube (13) is connected to the original interface; when it is necessary to purge warm air above the patient's air bag, the three-way valve (3) is controlled to switch so that the flushing tube (13) is connected to the flushing air pipe port of the air flow supply device (2).

8. The artificial airway airbag flushing system according to claim 1, characterized in that: A pressure relief valve (4) is provided on the suction tube (14) of the catheter member (1).

9. The artificial airway bag airflow flushing system according to claim 1, characterized in that: The catheter part (1) is a tracheal intubation tube part or a tracheotomy tube part.

10. An airway management device, characterized in that: The airway management device is equipped with an airflow flushing system according to any one of claims 1 to 9.

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