Digitized balloon, airway pressure monitoring and adjustable plugging airway catheter

Abstract

The invention relates to a digital balloon, airway pressure monitoring and adjustable plugging airway catheter, which relates to the field of medical treatment, and comprises a double-cavity tracheal catheter, a three-way conversion valve, a monitoring system and a visual device, the double-cavity tracheal catheter is provided with two tracheal catheter bodies which can ventilate the left lung and the right lung respectively, and the tail end of each tracheal catheter body is provided with a visual probe used for observing the position where the tracheal catheter body is located, a balloon used for positioning and blocking the corresponding lung and a pressure sensor used for monitoring the real-time pressure. The two ends of the three-way conversion valve are connected with an external ventilation pipeline and the double-cavity tracheal catheter respectively, and a limiting body and a rotating valve element with a rotating rod are arranged in the three-way conversion valve so that switching of different ventilation modes can be achieved. The monitoring system and the visual device are electrically connected with the visual probe and the pressure sensor so as to be used for displaying the real-time air pressure waveform and the real-time balloon positioning video. The operation difficulty of anesthetists can be reduced, and environment friendliness and economy are achieved.

Description

Technical Field

[0001] The present application relates to the medical field, and in particular, to an airway tube with a digital balloon and airway pressure monitoring and adjustable occlusion for performing anesthesia ventilation on a patient during surgery. Background Art

[0002] In medical practice, anesthesia plays a vital role in medical treatment. It can not only help patients relieve pain during surgery, but also help doctors perform surgery better. Some surgeries require single-lung anesthesia due to the particularity of the surgical site, such as lung surgery, mediastinal surgery, tracheal reconstruction, intrathoracic major vascular surgery, etc. The consumables used are generally airway tubes with balloons or endotracheal tubes and occluders with balloons. Depending on the actual situation of the patient, some require left and right lung occlusion and anesthesia exchange. After the operation, the patient needs to suction the sputum and inflate the lungs to slowly expand the collapsed lung, perform bilateral lung ventilation, and restore the patient's spontaneous breathing. Usually, single-lung anesthesia will use an occluder to block the other single lung. When the left and right lungs are to be blocked and anesthesia is exchanged, it is necessary to remove the occluder. The occluder for a single lung is removed and used to block the other lung. In order to prevent cross-infection of both lungs, a new occluder must be replaced, and the blocking effect depends largely on the experience of the anesthesiologist. The inflatable balloon of the airway tube or endotracheal tube is generally inflated by injecting air with a syringe to prevent the airway tube from leaking. However, the balloon pressure is difficult to control. If the pressure is too high, the patient's trachea is easily damaged, and if the pressure is too low, it is easy to leak. Therefore, it is difficult to achieve the best effect, especially for patients who have been undergoing surgery for a long time. The balloon pressure needs to be adjusted at regular intervals, which increases the difficulty of operation and the use of consumables.

[0003] Therefore, in view of the limitations of current single-lung anesthesia, it is necessary to develop an airway tube that reduces the difficulty of operation for anesthesiologists and is environmentally friendly and economical. Summary of the Invention

[0004] In view of the shortcomings of current single-lung anesthesia, the purpose of this application is to provide an airway catheter with digital balloon and airway pressure monitoring and adjustable occlusion, which is conducive to reducing the operating difficulty of anesthesiologists and is environmentally friendly and economical.

[0005] In order to achieve the above-mentioned objectives, the technical solution of the present invention provides an airway catheter with digital balloon and airway pressure monitoring and adjustable occlusion, including a double-lumen endotracheal catheter, a three-way steering valve, a monitoring system and a visual device; the double-lumen endotracheal catheter is provided with two endotracheal tubes that can be used for ventilation of the left lung and the right lung respectively, and each of the endotracheal tubes is provided with a visual probe at the end for observing the position, a balloon for positioning and occluding the corresponding lung, and a pressure sensor for monitoring real-time pressure; the two ends of the three-way steering valve are respectively connected to the external ventilation pipeline and the double-lumen endotracheal catheter, and a limit body and a rotating valve core with a rotating rod are provided inside the valve to realize switching between different ventilation modes; the monitoring system and the visual device are electrically connected to the visual probe and the pressure sensor to display real-time air pressure waveform and real-time video of balloon positioning.

[0006] Preferably, the two balloons at the ends of the airway tubes cooperate with the three-way diverter valve with a blocking function to jointly realize three ventilation modes: left ventilation and right closing, right ventilation and left closing, and simultaneous left and right ventilation.

[0007] Preferably, the three-way diverter valve is provided with a first channel connected to an external ventilation line, and a second channel and a third channel respectively connected to the two endotracheal tubes. The first channel is connected to the second channel or the third channel by rotating the rotary valve core, or the first channel, the second channel and the third channel are all connected, thereby realizing left ventilation and right closing, right ventilation and left closing, and both left and right ventilation modes.

[0008] Preferably, the cross-section of the rotary valve core is circular, one end of the rotating rod is located at the center of the circular cross-section, and the other end extends to the outside of the circular cross-section.

[0009] Preferably, a pressure switch is further included for use with the pressure sensor. When the monitored pressure is lower than a set value, the pressure switch is closed to start the air pump to inflate. When the balloon pressure reaches the set value, the pressure switch is disconnected to stop the air pump.

[0010] Preferably, the balloon pressures of the left and right chamber balloons are set within the range of 15-22 mmHg, and the two balloon pressure values are the same, so they can share a monitoring system.

[0011] Preferably, the left cavity and the right cavity of the valve body of the three-way steering valve are extended in opposite directions to the edge of the valve body, and the outlet is blocked with a plug.

[0012] Preferably, the double-lumen endotracheal tube and the three-way diverter valve are integrated into a disposable whole by medical glue or thermoplastic method, while the monitoring system and visual equipment are reusable components.

[0013] Preferably, the tracheal tube is provided with an auxiliary cavity to cover an auxiliary cavity extension tube, and a connector is provided at the end of the auxiliary cavity extension tube for connecting to the air pump with a one-way valve to inflate the balloon.

[0014] Preferably, the monitoring system and the visual device are provided with a connection interface for connecting the visual probe and the cable of the pressure sensor.

[0015] In summary, the present invention has the following beneficial technical effects:

[0016] By connecting a double-lumen airway catheter with a balloon to a three-way diverter valve with an adjustable blocking function, the present invention can conveniently switch between three modes: left-lung ventilation with right-lung blocking, right-lung ventilation with left-lung blocking, and simultaneous bilateral ventilation anesthesia. This meets the needs of different clinical surgical scenarios and improves surgical flexibility and safety. Two left and right visual probes are installed at the end of the endotracheal tube to observe the position of the tube in the trachea in real time, preventing displacement and leaks while reducing operational difficulty. The visual device display shows the real-time air pressure waveforms of the left and right airways and the balloon positioning video, and indicates the left and right words to avoid misjudgment by the doctor and improve the accuracy and convenience of tube placement.

[0017] Two airway pressure monitoring sensors on the left and right sides monitor the pressure within the airway tube in real time. Changes in the airway pressure waveform provide an intuitive assessment of ventilation and occlusion effectiveness, enabling timely detection of abnormal airway pressures and improving surgical safety and success rates. The balloon pressure monitoring system, in conjunction with the pressure switch, automatically adjusts the balloon pressure to the optimal level to ensure effective occlusion. This improves safety, reduces the workload of anesthesiologists and the pain of patients, and reduces the use of consumables such as occluders. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an airway tube with a digital balloon, airway pressure monitoring and adjustable occlusion for right lung anesthesia ventilation and left lung occlusion mode;

[0019] Figure 2 A schematic diagram of the structure of an airway tube with a digital balloon, airway pressure monitoring and adjustable occlusion for left lung anesthesia ventilation and right lung occlusion mode;

[0020] Figure 3 A schematic diagram of the structure of an airway tube with a digital balloon and airway pressure monitoring and adjustable occlusion, in which both the left and right lungs are ventilated simultaneously;

[0021] Figure 4 A schematic diagram of the structure of a double-lumen endotracheal tube in an airway tube with a digital balloon and airway pressure monitoring and adjustable occlusion;

[0022] Figure 5A schematic diagram of the structure of a three-way diverter valve with adjustable blocking function in an airway tube with a digital balloon and airway pressure monitoring and adjustable blocking;

[0023] Figure 6 A schematic diagram of a digital balloon and airway pressure monitoring and airway occlusion system integrating a pressure monitoring system for both left and right balloons in an airway tube and a visual device into one device;

[0024] Figure 7 The present invention is a schematic diagram of a plug sealing and a plug removal in an airway tube with a digital balloon and airway pressure monitoring and adjustable occlusion.

[0025] Figure 1: Double-lumen endotracheal tube; 101: Left-lumen endotracheal tube; 102: Left-lumen balloon; 103: Left-lumen catheter visual probe; 104: Left-lumen catheter pressure sensor; 105: Left-lumen auxiliary lumen extension tube; 106: Left-lumen cable; 107: Right-lumen endotracheal tube; 108: Right-lumen balloon; 109: Right-lumen visual probe; 110: Right-lumen catheter pressure sensor; 111: Right-lumen auxiliary lumen extension tube; 112: Right-lumen cable; 2: Three-way diverter valve; 201: Valve body Left chamber; 202, right chamber of valve body; 203, first channel; 204, second channel; 205, third channel; 206, limiter; 207, rotary valve core; 208, plug; 3. Monitoring system and visual equipment; 301, left lung pressure waveform; 302, left lung real-time image; 303, right lung pressure waveform; 304, right lung real-time image; 305, rechargeable battery and power socket; 306, balloon pressure monitoring system; 307, pressure switch; 308, air pump. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] The embodiment of the present invention discloses an airway catheter with digital balloon and airway pressure monitoring and adjustable occlusion, aiming to provide a simple, easy-to-operate, safe and reliable solution for clinical single-lung ventilation and airway management. The airway catheter comprises a double-lumen endotracheal catheter 1, a three-way diverter valve 2, a monitoring system and a visual device 3.

[0028] The double-lumen endotracheal tube 1, as the core component of the entire device, provides ventilation for the airway. The left-lumen endotracheal tube 101 and the right-lumen endotracheal tube 107 are used to ventilate the left and right lungs, respectively. Their ends are equipped with left-lumen balloons 102 and right-lumen balloons 108, respectively, which are used to position the endotracheal tubes and block the corresponding lungs to ensure air leakage during ventilation. The left-lumen endotracheal tube 101 and the right-lumen endotracheal tube 107 each contain an auxiliary lumen for connecting to the balloons. The interiors of the two auxiliary lumens are respectively provided with left-lumen auxiliary lumen extension tubes 105 and right-lumen auxiliary lumen extension tubes 111. The ends of the two extension tubes are located outside the double-lumen endotracheal tube 1 and are provided with connectors for connecting to an air pump 308 with a one-way valve to inflate the balloons.

[0029] Left and right catheter visual probes 103 and 109 are mounted on the ends of the left and right endotracheal tubes 101 and 107, respectively, to monitor the tube's position within the trachea in real time, preventing tube displacement and air leaks and ensuring effective ventilation. Left and right airway pressure monitoring sensors, namely left and right catheter pressure sensors 104 and 110, are mounted on the left and right endotracheal tubes 101 and 107, respectively, to monitor the real-time pressure within the airway tubes, enabling timely detection of pressure changes and assessment of ventilation status.

[0030] The three-way diverter valve 2 with an adjustable blocking function is another key component of the present invention. It is internally equipped with a stopper 206 and a rotating valve core 207 with a rotating rod. Three-way diverter valve 2 has channels at both ends. One end serves as a first channel 203, used to connect to an external ventilation line and, in turn, to a respiratory device. The other end is connected to a dual-lumen endotracheal tube 1. The valve's interior is divided by a stopper 206 into a left valve chamber 201 and a right valve chamber 202, connecting the left and right endotracheal tubes 101 and 107, respectively. The ends of the left and right valve chambers 201 and 202, facing away from the dual-lumen endotracheal tube 1, open onto the rotating valve core 207, forming a second channel 204 and a third channel 205. The axes of the second and third channels 204 and 205 lie on the same line, while the axis of the first channel 203 is perpendicular to the axes of the second and third channels 204 and 205. Among them, after the end of the three-way steering valve 2 is connected to the double-lumen endotracheal tube 1, the second channel 204 and the third channel 205 are respectively connected to the left lumen endotracheal tube 101 and the right lumen endotracheal tube 107 of the double-lumen endotracheal tube 1, so that the double-lumen endotracheal tube 1 and the three-way steering valve 2 with a blocking function form a whole.

[0031] The cross section of the rotary valve core 207 is circular, with one end of the rotating rod located at the center of the circular cross section and the other end extending to the outside of the circular cross section. By rotating the rotary valve core 207, the first channel 203 can be connected to one of the second channel 204 or the third channel 205, or the first channel 203, the second channel 204 and the third channel 205 can all be connected, thereby realizing the switching of different ventilation modes, i.e., left ventilation and right closure, right ventilation and left closure, and both left and right ventilation modes. In addition, in order to facilitate other operations such as suctioning by the anesthesiologist, the left chamber 201 and the right chamber 202 of the valve body of the three-way reversing valve 2 are extended in the opposite direction to the end edge of the valve body away from the double-lumen endotracheal tube 1, and the outlet is blocked with a plug 208. When suctioning is required, the corresponding plug 208 can be opened to perform the operation without affecting single-lung anesthesia.

[0032] In addition, the double-lumen endotracheal tube 1 and the three-way diverter valve 2 with adjustable blocking function can be integrated into a whole using medical glue or thermoplastic methods, and will be treated as medical waste after use. It is disposable. The monitoring system and visual equipment 3 do not contact the patient during use and are reusable.

[0033] The monitoring system and the visual device are integrated into one. The visual device includes two connection interfaces for connecting the left and right visual probes and the cables of the pressure sensor (i.e., the left cavity cable 106 and the right cavity cable 112). The device can display the real-time air pressure waveforms of the left and right airway tubes (i.e., the left lung pressure waveform 301 and the right lung pressure waveform 303) as well as the real-time video of the balloon positioning, so that medical staff can intuitively understand the ventilation status and tube position. The ventilation status of the left and right airways can be determined by the changes in the air pressure waveform. If the pressure waveform changes, it means that ventilation is in progress, and if the pressure is constant, it means that the corresponding airway tube is not ventilated and is successfully blocked.

[0034] The rechargeable battery and power socket 305 serve as the power source for the entire device, providing stable power to all electrical components. A pressure switch 307 automatically activates the balloon pressure monitoring system 306, working in conjunction with the left and right catheter pressure sensors 104 and 110. The pressure sensors, located at one end of the double-lumen endotracheal tube 1, monitor the air pressure output by the air pump 308 to the left and right balloons 102 and 108. When the monitored pressure falls below the set balloon pressure, the pressure switch 307 closes, and the air pump 308 operates to increase the pressure. When the balloon pressure reaches the set value, the pressure switch 307 opens, and the air pump 308 stops operating. A one-way vent valve at its outlet ensures stable balloon pressure. The integration of the left and right balloon pressure monitoring systems and the visual device 3 greatly facilitates operation for medical personnel. The balloon pressure of the airway tube is generally between 15 and 22 mmHg. Both balloons have the same set pressure value, allowing them to share a single monitoring system.

[0035] In practice, the left and right balloons at the end of the airway tube (i.e., left-chamber balloon 102 and right-chamber balloon 108) play a crucial blocking role. One balloon is located within the main trachea, and the other is located on the corresponding left or right bronchus. Taking the balloon in the left bronchus as an example, air is pumped in by air pump 308, causing both the left and main bronchus balloons to inflate simultaneously. The balloon on the left bronchus blocks the left bronchus, ensuring that air entering the left tracheal tube does not leak, allowing ventilation only to the left lung. While the outlet of the right tracheal tube is within the main trachea, air leaks are blocked by the right balloon on the main trachea. Furthermore, since the left lung is already blocked by the balloon on the left tracheal tube, ventilation can only be provided to the right lung. The three-way diverter valve 2 with a blocking function works in conjunction with the left and right balloons at the end of the airway tube to achieve three ventilation modes: left ventilation with right closed, right ventilation with left closed, and simultaneous left and right ventilation. This design can flexibly adjust ventilation strategies according to clinical needs to meet airway management requirements in different surgical scenarios.

[0036] The images of the left and right visual probes (left catheter visual probe 103 and right catheter visual probe 109) (real-time image 302 of the left lung and real-time image 304 of the right lung) and the corresponding two pressure waveforms (left lung pressure waveform 301 and right lung pressure waveform 303) are presented on the display of the visual device, and the left and right words are clearly marked to effectively prevent doctors from making misjudgments. Taking the anesthesia of the right lung and the blocking of the left lung as an example, select an airway catheter with a balloon in the left bronchus. Before use, check whether the three-way steering valve 2 is blocked on the left channel. If it is not blocked, the three-way steering valve 2 can be turned to block the left airway catheter. After the airway catheter is installed, turn on the balloon pump so that the left balloon is fixed on the left bronchus and the right balloon is fixed on the main trachea. During ventilation, the image of the left lung shows the bronchial image and the airway pressure is constant, indicating that the left airway blocking is effective; the image of the right lung shows the main trachea image, and the airway pressure waveform is consistent with the pressure waveform of the respiratory device, indicating that the ventilation of the right lung is normal. If the blocking mode needs to be adjusted, the three-way steering valve 2 is simply rotated to switch the left and right lung ventilation modes.

[0037] The airway catheter with digital balloon, airway pressure monitoring and adjustable blocking function of the present invention has shown significant advantages in clinical applications. Its structural design is simple, easy to operate, and highly safe, and can meet the needs of clinical single-lung ventilation and airway management. Single-lung ventilation can be achieved through the blocking catheter balloon and the three-way diverter valve 2 with blocking function, and the left and right lung ventilation modes can be easily switched by rotating the three-way valve. Real-time monitoring of the airway pressure waveform provides medical staff with an intuitive means of evaluating the ventilation effect and blocking effect, which helps to improve the safety and success rate of the operation.

[0038] In actual practice, using left-lung occlusion and right-lung anesthesia as an example, the monitoring system and visualization device 3 are first activated for visualization, the appropriate consumables are removed, and the three-way diverter valve 2 is checked to ensure that the left lung is blocked. After confirmation, the cannula is placed, the cables are connected, and visualization technology is used to improve the accuracy and convenience of cannulation. To facilitate cannulation, a flexible wire can be used. Since the left cavity is blocked, the plug 208 of the left cavity of the three-chamber valve can be removed and the flexible wire can be inserted into the left cavity, providing support for the entire double-lumen endotracheal tube 1.

[0039] When the left-chamber balloon 102 at the front end of the left lumen enters the left bronchus, the double-lumen endotracheal tube 1 is fixed, and the left-chamber auxiliary lumen extension tube 105 and the right-chamber auxiliary lumen extension tube 111 are connected to the two outlets of the air pump 308. The balloon pressure range is 15-22 mmHg. The balloon pressure value is set according to clinical needs, such as the initial setting of 17 mmHg. When the balloon pressure is lower than this value, the pressure switch 307 is closed and the air pump 308 is started to inflate; when the air pressure reaches the set value of 17 mmHg, the pressure switch 307 is disconnected and the air pump 308 stops working, ensuring that the balloon pressure is stable within the set range. Subsequently, the double-lumen catheter is fixed with medical tape, the wire is pulled out, and the left-chamber air leak plug 208 on the three-way diverter valve 2 is re-blocked. The first channel 203 of the three-way diverter valve 2 is connected to the anesthesia breathing circuit of the anesthesia machine, and the anesthesia machine is started. Since the left cavity of the three-way diverter valve 2 is in a blocked state, the anesthetic gas cannot enter the left lung, while the right cavity is connected to the anesthesia circuit. The anesthetic gas flowing out of the right cavity flows in the main trachea, but the left cavity balloon 102 blocks the air inlet of the left bronchus, ensuring that the anesthetic gas only enters the right lung, successfully achieving the effect of left lung blocking right lung anesthesia.

[0040] During the entire monitoring process, if the real-time pressure waveform of the left lung changes, it indicates that the pressure of the left lung balloon 102 is insufficient. At this time, the balloon pressure setting value can be appropriately increased until the left lung pressure waveform is stable and the right lung pressure waveform is consistent with the anesthesia machine pressure waveform. Figure 1 The result indicates that the right lung is ventilating normally. After confirming that the patient is under anesthesia, the doctor can proceed with subsequent treatment. After the treatment is completed, by rotating the rotary valve core 207, both the left and right cavities of the three-way diverter valve 2 enter the ventilation mode, inflating the patient's left lung, slowly reinflating the collapsed left lung, restoring bilateral lung ventilation, and helping the patient resume spontaneous breathing.

[0041] The airway catheter with digital balloon, airway pressure monitoring and adjustable occlusion function provides a safe, reliable and easy-to-operate solution for clinical airway management through its ingenious structural design and intelligent monitoring system, and has significant clinical application value and promotion prospects.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 airway catheter with digital balloon and airway pressure monitoring and adjustable occlusion, characterized in that: The invention comprises a double-lumen endotracheal tube (1), a three-way steering valve (2), a monitoring system and a visual device (3); the double-lumen endotracheal tube (1) is provided with two endotracheal tubes which can be used for ventilation of the left lung and the right lung respectively, and each of the endotracheal tubes is provided with a visual probe for observing the position, a balloon for positioning and blocking the corresponding lung, and a pressure sensor for monitoring the real-time pressure at the end; the two ends of the three-way steering valve (2) are respectively connected to an external ventilation line and the double-lumen endotracheal tube (1), and a limiter (206) and a rotary valve core (207) with a rotating rod are provided inside the valve to realize switching between different ventilation modes; the monitoring system and the visual device (3) are electrically connected to the visual probe and the pressure sensor to display the real-time air pressure waveform and the real-time video of the balloon positioning.

2. The airway catheter with digital balloon and airway pressure monitoring and adjustable occlusion according to claim 1, characterized in that: The two balloons at the ends of the airway tubes work in conjunction with the three-way steering valve (2) with a blocking function to achieve three ventilation modes: left ventilation and right closing, right ventilation and left closing, and simultaneous left and right ventilation.

3. The airway catheter with digital balloon and airway pressure monitoring and adjustable occlusion according to claim 2, characterized in that: The three-way steering valve (2) is provided with a first channel (203) connected to an external ventilation pipeline, and a second channel (204) and a third channel (205) respectively connected to the two tracheal tubes. By rotating the rotary valve core (207), the first channel (203) is connected to the second channel (204) or the third channel (205), or the first channel (203), the second channel (204) and the third channel (205) are all connected, thereby realizing left ventilation and right closing, right ventilation and left closing, and both left and right ventilation modes.

4. The airway catheter with digital balloon and airway pressure monitoring and adjustable occlusion according to claim 3, characterized in that: The cross section of the rotary valve core (207) is circular, one end of the rotary rod is located at the center of the circular cross section, and the other end extends to the outside of the circular cross section.

5. An airway catheter with a digital balloon and airway pressure monitoring and adjustable occlusion according to any one of claims 1 to 4, characterized in that: The device further comprises a pressure switch (307) for use in conjunction with the pressure sensor. When the monitored pressure is lower than a set value, the pressure switch (307) is closed to start the air pump (308) to inflate the balloon. When the balloon pressure reaches the set value, the pressure switch (307) is disconnected to stop the air pump (308) from working.

6. The airway catheter with digital balloon and airway pressure monitoring and adjustable occlusion according to claim 5, characterized in that: The balloon pressures of the left-chamber balloon (102) and the right-chamber balloon (108) are set within the range of 15-22 mmHg. The two balloon pressure values are the same and can share a monitoring system.

7. An airway tube with a digital balloon and airway pressure monitoring and adjustable occlusion according to any one of claims 1 to 4, characterized in that: The left cavity (201) and the right cavity (202) of the three-way steering valve (2) are extended in opposite directions to the edge of the valve body, and the outlets are blocked by plugs (208).

8. An airway catheter with a digital balloon and airway pressure monitoring and adjustable occlusion according to any one of claims 1 to 4, characterized in that: The double-lumen endotracheal tube (1) and the three-way diverter valve (2) are integrated into a disposable whole by medical glue or thermoplastic method, while the monitoring system and visual device (3) are reusable components.

9. An airway catheter with a digital balloon and airway pressure monitoring and adjustable occlusion according to any one of claims 1 to 4, characterized in that: The tracheal tube is provided with an auxiliary cavity to cover an auxiliary cavity extension tube, and a connector is provided at the end of the auxiliary cavity extension tube for connecting to the air pump (308) with a one-way valve to inflate the balloon.

10. An airway tube with a digital balloon and airway pressure monitoring and adjustable occlusion according to any one of claims 1 to 4, characterized in that: The monitoring system and the visual device (3) are provided with a connection interface for connecting the cables of the visual probe and the pressure sensor.

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