Surgical airway isolation device

Abstract

The invention relates to the technical field of bronchial treatment equipment, and particularly provides a surgical airway isolation device which comprises a tracheal catheter provided with a first opening and a second opening; the adapter elbow is arranged on the first opening, the adapter elbow is communicated with the air guide channel, a treatment inlet and an oxygen supply inlet are formed in the adapter elbow, and a fixed clamping position is arranged on the inner side wall of the oxygen supply inlet; the isolation branch pipe comprises an air guide pipe, an isolation lantern ring, an isolation membrane and a first air bag; the air guide tube is detachably connected to the fixing clamping position, the air guide tube and the isolation lantern ring are of hollow structures, the isolation lantern ring is communicated with the air guide tube, a plurality of air outlet holes are formed in the outer side wall of the isolation lantern ring, the isolation membrane is arranged in the middle of the isolation lantern ring, and a fixing hole for the endoscopy to penetrate through is formed in the middle of the isolation membrane; the first air bag is arranged around the outer side of the isolation lantern ring. According to the application, the affected side bronchus can be isolated, and the treatment mirror is utilized to perform laser treatment on the focus part.

Description

Technical Field

[0001] This application relates to the field of bronchial treatment equipment technology, and more particularly to a surgical airway isolation device. Background Technology

[0002] In existing bronchoscopic procedures, to avoid the risk of fire during laser treatment caused by excessively high oxygen concentrations when oxygenating the airway, which could burn the patient's airway, the oxygen content needs to be frequently reduced during the treatment process, leading to severe hypoxia in the patient.

[0003] The utility model patent with patent number CN213697095U proposes a bronchial tube device that can achieve unilateral occlusion. Although it can block one bronchus while ensuring ventilation of the other bronchus, this structure can only block blood or pus in the left and right bronchi. It cannot clean the affected side or perform laser treatment while occluding the bronchus, resulting in poor clinical efficacy. In addition, as the left and right bronchi are penetrated, the diameter of the bronchus gradually decreases, making it difficult to reach the affected area for treatment.

[0004] Therefore, existing technologies need to be improved. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a surgical airway isolation device, which aims to solve the problem that the prior art cannot effectively block the affected side of the bronchus and prevent blood, pus and other fluids from entering the healthy side of the bronchus. This device ensures that treatment can be carried out in the affected side of the bronchus in the event of sudden bleeding, while avoiding the fire problem caused by the high oxygen environment.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: A surgical airway isolation device, comprising: The endotracheal tube has a first opening and a second opening, forming an air passage between the first opening and the second opening, and a fixing position is provided on the inner side wall of the endotracheal tube. An adapter elbow is provided on the first opening and is connected to the air guide channel. The adapter elbow is provided with a treatment inlet and an oxygen supply inlet, and the oxygen supply inlet is used to connect to an oxygen supply device. An isolation bronchus includes an air duct, an isolation collar, an isolation membrane, and a first airbag. The air duct is detachably connected to the fixing position. The air duct and the isolation collar are hollow structures. The isolation collar is connected to the air duct. Several air outlets are provided on the outer wall of the isolation collar. The isolation membrane is located in the middle of the isolation collar, and a fixing hole for the air endoscope to pass through is provided in the middle of the isolation membrane. The first airbag is arranged around the outside of the isolation collar. After the air outlets inflate the first airbag, the isolation collar is relatively fixed inside the bronchus.

[0007] Furthermore, the middle portion of the isolation membrane is recessed towards the side away from the endotracheal tube to form a funnel-shaped isolation cavity, and the circumferential dimension of the isolation cavity increases along the direction from the fixing hole to the isolation collar.

[0008] Furthermore, an inflatable cavity is formed inside the first airbag, which is connected to the air outlet, and the cross-sectional profile of the inflatable cavity is circular or elliptical.

[0009] Furthermore, the isolation branch tube also includes an inflation balloon, which is connected to the air duct via a pipe, and the inflation balloon is used to inflate the first air bladder.

[0010] Furthermore, the endotracheal tube includes: The main body is cylindrical; An opening is provided at the bottom end of the main body. Along the length of the opening, the circumferential dimension of the opening gradually decreases. The horizontal side of the opening is recessed inward to form an eagle-beak-shaped opening end. The second opening is provided in the middle of the opening end.

[0011] Furthermore, the tracheal tube is also provided with an inflation channel and a second air bladder. The second air bladder is fixed around the outer wall of the tracheal tube. The inflation channel is a hollow channel embedded in the side wall of the tracheal tube or an integrally formed hollow channel.

[0012] Furthermore, the oxygen supply inlet of the adapter elbow is perpendicular to the central axis of the treatment inlet.

[0013] Optionally, the fixing position is an opening provided on the side wall of the treatment inlet, so that the air tube can be locked onto the opening.

[0014] Optionally, the adapter elbow is also provided with a connection inlet, the inner wall of the connection inlet is provided with threads, the adapter elbow is connected to the tracheal tube by the threads, and a sealing ring is provided at the top of the threads.

[0015] Optionally, the adapter elbow is also provided with a sealing cover, which is connected to the treatment inlet.

[0016] Compared with the prior art, this application provides a surgical airway isolation device, including an endotracheal tube, a connecting elbow, and an isolation branch; the endotracheal tube has a first opening and a second opening, forming an air delivery channel between the first and second openings, and a fixing slot is provided on the inner wall of the endotracheal tube; the connecting elbow is disposed on the first opening, and the connecting elbow is connected to the air delivery channel, and the connecting elbow has a treatment inlet and an oxygen supply inlet, the oxygen supply inlet being used to connect to an oxygen supply device; the isolation branch includes a guide tube... The bronchus comprises a trachea, an isolation collar, an isolation membrane, and a first airbag; the air tube is detachably connected to the fixing position, the air tube and the isolation collar are hollow structures, the isolation collar is connected to the air tube, the outer wall of the isolation collar has several air outlets, the isolation membrane is disposed in the middle of the isolation collar, and the middle of the isolation membrane has a fixing hole for the bronchoscope to pass through; the first airbag is arranged around the outside of the isolation collar, and after the air outlets inflate the first airbag, the isolation collar is relatively fixed inside the bronchus.

[0017] When using this surgical airway isolation device, the endotracheal tube is inserted into the patient's main trachea, and an isolation bronchus is placed through the airway. The airway is then secured in a fixed position. The isolation ring is then moved to the upper side of the treatment site in the bronchus, and air is inflated into the first cuff to inflate it and make it adhere to the bronchial wall, thus fixing the position of the isolation ring. Oxygen is supplied to the airway through the oxygen inlet. The isolation membrane in the middle of the isolation ring isolates the environment on both sides, preventing oxygen from entering the treatment site and preventing backflow of blood and pus. A bronchoscope is inserted through the treatment inlet, passing through the fixing hole in the middle of the isolation membrane, and laser treatment is performed on the treatment site. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the usage state of a surgical airway isolation device according to an embodiment of this application; Figure 2 This is a front view of the endotracheal tube and the adapter elbow in the embodiments of this application; Figure 3 This is a side view of the endotracheal tube in an embodiment of this application; Figure 4 yes Figure 2 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram of the structure of the isolation branch pipe in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the treatment opening in an embodiment of this application.

[0019] Explanation of reference numerals in the attached figures: 10. Endotracheal tube; 11. First opening; 12. Second opening; 13. Fixing clip; 14. Main tube; 15. Opening piece; 16. Inflation channel; 17. Second airbag; 20. Adapter elbow; 21. Treatment inlet; 22. Oxygen supply inlet; 23. Connection inlet; 24. Sealing ring; 25. Sealing cap; 30. Isolation branch tube; 31. Air duct; 32. Isolation collar; 321. Air outlet; 33. Isolation membrane; 331. Fixing hole; 34. First airbag; 35. Inflation airbag. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] The human trachea consists of the main trachea and bronchi. The bronchi include the left and right main bronchi and the left and right lobar bronchi, with the tracheal structure extending deeper and gradually decreasing in diameter. Bronchial laser therapy involves inserting a bronchoscope to ablate or clean the bleeding site with a laser. However, during treatment, failing to reduce the oxygen concentration in the airway poses a risk of airway fire, while reducing it easily leads to hypoxia in the patient. Patients with lung diseases, in particular, have a short tolerance for hypoxia, forcing a shorter procedure time and increasing the probability of massive bleeding and airway rupture.

[0024] Currently, double-lumen bronchioles are commonly used in clinical practice to isolate unilateral bronchus. However, due to their small diameter, laser endoscopes cannot be inserted into double-lumen bronchioles, making it difficult to further treat the affected bronchus. At the same time, double-lumen bronchioles cannot penetrate deeper into the bronchus to cover lobar bronchus and smaller segmental bronchus, resulting in insufficient isolation precision.

[0025] In this regard, such as Figure 1 As shown in the embodiments of this application, a surgical airway isolation device is proposed that can penetrate deeper into the bronchus to isolate the affected bronchus and prevent blood, pus, saline, etc. from flowing back into the healthy bronchus. At the same time as isolation, the device can perform laser treatment on the affected bronchus. The surgical airway isolation device includes a tracheal tube 10, a connecting elbow 20, and an isolation bronchus 30.

[0026] The endotracheal tube 10, adapter elbow 20, and isolation bronchus 30 can be separate units, requiring disassembly for use to reduce the risk of cross-infection. Alternatively, the endotracheal tube 10 and adapter elbow 20 can be integrated into one unit for ease of use. The endotracheal tube 10 is inserted into the patient's main trachea to support and ventilate it. The adapter elbow 20 is a T-shaped three-way connector. The oxygen supply inlet and treatment inlet of the adapter elbow are perpendicular to each other, allowing the doctor to insert the endoscope through another inlet for observation and treatment while connecting the breathing circuit, thus avoiding interference between medical device supports.

[0027] The endotracheal tube 10 is provided with a first opening 11 and a second opening 12, and an air guiding channel is formed between the first opening 11 and the second opening 12. A fixing position 13 is provided on the inner side wall of the endotracheal tube 10.

[0028] The endotracheal tube 10 is a hollow tube with an internal air delivery channel for delivering oxygen to the patient's airway and for the insertion of the endoscope and isolation bronchus 30. The inner wall of the endotracheal tube 10 is smooth to reduce resistance during endoscope insertion and operation. After the endotracheal tube 10 is inserted into the patient's main airway, it can be fixed in the main airway by the elastic contraction of the inner side of the main airway, keeping its depth relatively fixed.

[0029] Specifically, the length of the endotracheal tube 10 is L1, which is 20cm to 30cm. Depending on the specific airway length of adult and pediatric patients, medical staff can choose different lengths of endotracheal tube 10 to make it more suitable.

[0030] The adapter elbow 20 is disposed on the first opening 11. The adapter elbow 20 is connected to the air guiding channel. The adapter elbow 20 is provided with a treatment inlet 21 and an oxygen supply inlet 22. The oxygen supply inlet 22 is used to connect to an oxygen supply device. The adapter elbow 20 is a T-shaped three-way elbow. The single inlet on the horizontal side is the oxygen supply inlet 22, which facilitates the entry of oxygen. The two inlets on the same axis are used to connect the endotracheal tube 10 and the treatment inlet 21, which allows the treatment endoscope and isolation bronchus 30 to enter the bronchus for isolation and treatment operations.

[0031] In some embodiments, the treatment inlet 21 is provided with a seal, which may be a thin film with a hole in the middle to ensure that the oxygen supplied by the oxygen supply inlet 22 flows sufficiently to the tracheal tube 10.

[0032] The isolation branch tube 30 includes an air guide tube 31, an isolation collar 32, an isolation membrane 33, and a first airbag 34. The air guide tube 31 is detachably connected to the fixing position 13. The air guide tube 31 and the isolation collar 32 are hollow structures. The isolation collar 32 is connected to the air guide tube 31. Several air outlets 321 are provided on the outer side wall of the isolation collar 32. The isolation membrane 33 is located in the middle of the isolation collar 32. The middle of the isolation membrane 33 is provided with a fixing hole 331 for the air endoscope to pass through. The first airbag 34 is arranged around the outside of the isolation collar 32. After the air outlets 321 inflate the first airbag 34, the isolation sleeve is relatively fixed inside the bronchus.

[0033] The air inlet tube 31 is a flexible medical plastic tube, which facilitates the doctor's insertion of the air inlet tube 31 into the treatment area inside the bronchus, improving the accuracy of isolation. By inflating the top of the air inlet tube 31, the gas can enter the isolation ring 32 along the air inlet tube 31 and be released from the air outlet 321, causing the isolation ring 32 to expand. After the bronchus reaches the designated position, the inflated first air bladder 34 can seal the gap between the isolation ring 32 and the inner wall of the bronchus, keeping the position of the isolation ring 32 fixed. At the same time, the isolation membrane 33 in the middle of the isolation ring 32 separates the spaces on the upper and lower sides of the isolation ring 32. On the one hand, it can prevent the fluid in the affected bronchus from overflowing and flowing into the healthy bronchus, which would cause the patient to be unable to breathe. On the other hand, it can block oxygen as much as possible on the upper side of the isolation membrane 33, reducing the oxygen concentration at the treatment site, which facilitates the doctor to perform laser treatment through the treatment endoscope.

[0034] Specifically, when using this surgical airway isolation device, the endotracheal tube 10 is inserted into the main trachea of ​​the anesthetized patient, the isolation bronchus 30 is placed through the airway, and the airway 31 is secured to the fixed position 13 to keep its position relatively fixed and prevent it from swinging inside the endotracheal tube 10. Then, the isolation ring 32 is moved to the upper side of the treatment position in the bronchus, and air is pumped into the first cuff 34 to inflate it and make it fit against the bronchial wall, thus fixing the position of the isolation ring 32. Oxygen is supplied to the airway through the oxygen supply inlet 22. The isolation membrane 33 in the middle of the isolation ring 32 isolates the environment on both sides, preventing oxygen from entering the treatment position and preventing backflow of blood and pus. The bronchoscope is inserted through the treatment inlet 21, and the bronchoscope passes through the fixing hole 331 in the middle of the isolation membrane 33, and laser treatment is performed on the treatment site.

[0035] Because the isolation point is located on the isolation ring 32, the doctor can insert the isolation ring 32 into the narrower main bronchus, lobar bronchus, or segmental bronchus through the air tube 31 for more precise isolation. Oxygen can still flow smoothly above the isolation ring 32, ensuring the patient's oxygenation during the operation, reducing surgical risks, and improving surgical prognosis. The isolation membrane 33 in the middle of the isolation tube is provided with a fixing hole 331. By passing the treatment endoscope through the fixing hole 331, the treatment site can be precisely positioned. Since the isolation membrane 33 and the first air bag 34 isolate the oxygen on both sides of the isolation ring 32, the treatment endoscope can be used more safely for laser treatment and cleaning of the treatment site, and convenient treatment can be completed in emergency situations such as bronchial bleeding.

[0036] Those skilled in the art will understand that the fixing hole 331 is not only a channel through which the bronchoscope passes, but also a locking structure for fixing the isolation collar 32 to the head of the bronchoscope. When the isolation bronchus tube 30 is inserted into the bronchus for isolation, the isolation collar 32 can be placed on the top of the bronchoscope. While the bronchoscope is being inserted, the isolation collar 32 is moved to the treatment site by means of the visualization system of the bronchoscope. Then, air is inflated into the first airbag 34 to fix the position of the isolation collar 32.

[0037] Through the above technical solutions, the isolation bronchus 30 of this application achieves precise isolation of the bronchus and oxygen concentration control. The mechanical fixation of the first airbag 34 can adapt to different bronchial shapes and avoid displacement. The dual function of the isolation membrane 33 ensures treatment safety and maintains the patient's breathing, reducing surgical risks. The use of the airway 31 expands the treatment range and supports operations at the lobar bronchus and below.

[0038] like Figure 5As shown, the middle part of the isolation membrane 33 is recessed towards the side away from the tracheal tube 10 to form a funnel-shaped isolation cavity. The circumferential dimension of the isolation cavity increases along the direction from the fixing hole 331 to the isolation collar 32.

[0039] The circumferential dimension is the perimeter of the cross-sectional profile of the isolation cavity. The side where the isolation cavity is located is the side with a higher oxygen concentration. The end with the largest circumferential dimension is connected to the isolation collar 32.

[0040] Specifically, the isolation membrane 33 is a one-way valve with shaping capabilities and can be made of rubber. This allows the therapeutic endoscope to pass through the fixing hole 331 in the middle of the isolation membrane 33. The isolation membrane 33 divides the bronchus into an upper oxygenation zone and a lower treatment zone. The oxygen concentration in the lower zone is reduced, decreasing the risk of laser ignition, while the upper zone maintains ventilation. The therapeutic endoscope enters the lower zone through the fixing hole 331 and operates directly on the affected area. The funnel-shaped isolation cavity can prevent fluid from the affected side from flowing back into the healthy bronchus through the fixing hole 331, reducing the risk of patient suffocation during treatment.

[0041] like Figure 5 As shown, the interior of the first airbag 34 forms an inflatable cavity, which is connected to the air outlet 321. The cross-sectional profile of the inflatable cavity is circular or elliptical.

[0042] The circular or elliptical cross-section allows the first airbag 34 to expand evenly after inflation, adapting to the irregular inner wall of the bronchus and avoiding local high pressure damage to the mucosa. The air outlet 321 is evenly distributed on the isolation collar 32 to ensure smooth inflation and stable airbag shape. The volume of the inflation cavity matches the size of the bronchus, providing sufficient fixing force without excessive expansion. The diameter is 5mm~7mm when not inflated and the maximum diameter is 7mm~9mm after inflation.

[0043] In some embodiments, the inner wall of the first airbag 34 is thickened to facilitate rapid inflation and isolation.

[0044] Specifically, when the first airbag 34 is inflated, gas enters the inflation cavity from the air guide tube 31 through the air outlet 321. The airbag deforms according to the shape of the bronchus to form a circumferential seal. The elliptical cross section is more suitable for flat or irregular bronchus, improving fit and sealing, and ensuring isolation effect.

[0045] like Figure 1 As shown, the isolation branch tube 30 also includes an inflation balloon 35, which is connected to the air delivery tube 31 via a pipe. The inflation balloon 35 is used to inflate the first air balloon 34. The inflation balloon 35 is a manually inflatable device, which controls the gas flow by squeezing and releasing, facilitating rapid adjustment during surgery.

[0046] The doctor inflates the first airbag 34 by squeezing the inflatable balloon 35. After observing the fixation effect, the balloon can be deflated and its position adjusted. The inflatable balloon 35 simplifies the inflation operation and improves the flexibility of the operation. The manual design reduces the complexity of the equipment and the cost, making it suitable for various medical environments.

[0047] like Figure 3 As shown, the endotracheal tube 10 includes a main tube body 14 and an opening. The main tube body 14 and the opening 15 are integrally formed. The opening 15 is located at the bottom of the main tube body 14, the first opening 11 is located at the top of the main tube body 14, and the second opening 12 is located at the bottom of the opening 15. When inserting the endotracheal tube 10, the opening 15 is inserted into the patient's airway on one side, so that the opening 15 first contacts the patient's glottis and then enters the main airway.

[0048] The main body 14 is cylindrical; the middle part of the main body 14 is provided with the air guide channel that runs through it from top to bottom, and the diameter of the air guide channel, that is, the inner diameter of the main body 14, is between 7mm and 9mm.

[0049] like Figure 2 As shown, the opening 15 is located at the bottom end of the main tube 14. Along the length of the opening 15, its circumferential dimension gradually decreases. One horizontal side of the opening 15 is recessed inwards to form a beak-shaped opening end. The second opening 12 is located in the center of this opening end. The beak-shaped opening 15 guides the main tube 14 through the glottis, facilitating the insertion of the endotracheal tube 10 into the glottis and main trachea, reducing mucosal damage, and the integral molding enhances structural strength, preventing leakage at the connection point.

[0050] like Figure 1 As shown, to prevent the endotracheal tube 10 from moving within the main trachea, the endotracheal tube 10 is also provided with an inflation channel 16 and a second airbag 17. The second airbag is fixed around the outer wall of the endotracheal tube 10. After the second airbag is inflated through the inflation channel 16, it expands and fits tightly against the inner wall of the main trachea, enhancing the fixation and sealing of the tube. At the same time, the second airbag can further seal the gap between the endotracheal tube 10 and the main trachea, preventing blood and treatment fluid from spilling out and further improving the reliability of the isolation.

[0051] In some embodiments, the inflation channel 16 is a hollow channel embedded inside the side wall of the tracheal conduit 10. That is, the inflation channel 16 is an independent pipe.

[0052] In other embodiments, the inflation channel 16 is an integrally formed hollow channel. That is, the inflation channel 16 is formed by drilling a hole in the side wall of the tracheal tube 10.

[0053] Optionally, the adapter elbow 20 is provided with at least one partition, which divides the adapter elbow 20 into a first channel and a second channel. The partition is arranged vertically, dividing the interior of the adapter elbow 20 into independent channels. The first channel is used for oxygen flow, and the second channel is used for the passage of the treatment endoscope or isolation branch tube 30, so as to avoid airflow interference with instrument operation.

[0054] like Figure 6 As shown, the fixing position 13 is an opening located on the treatment inlet side wall of the transition elbow 20, so that the air tube can be locked onto the opening. It can be understood that the opening width is slightly smaller than the outer diameter of the air tube 31, and the air tube 31 is locked by elastic deformation to prevent it from falling out; during the operation, the depth of the isolation branch tube 30 can be adjusted more smoothly to accurately locate the treatment site.

[0055] like Figure 4 As shown, the adapter elbow 20 is also provided with a connection inlet 23. The inner wall of the connection inlet 23 is provided with threads. The adapter elbow 20 is connected to the tracheal tube 10 by the threads, and a sealing ring 24 is provided at the top of the threads. The threaded connection ensures that the adapter elbow 20 and the tracheal tube 10 are firmly fixed and prevents them from falling off. The sealing ring 24 is made of rubber and fills the gap after compression to ensure airtightness.

[0056] Specifically, when the adapter elbow 20 is tightened, the sealing ring 24 is deformed under pressure, sealing the connection and ensuring that oxygen does not leak out. The threaded connection enhances the stability of the adapter elbow 20, and the sealing ring 24 prevents oxygen leakage and improves the overall airtightness of the device.

[0057] like Figure 1 As shown, the adapter elbow 20 is also provided with a sealing cap 25, which is connected to the treatment inlet 21. The sealing cap 25 is connected to the treatment inlet 21 by threads or snaps, which can ensure a sterile environment for the surgical airway isolation device before use and reduce the risk of infection.

[0058] A specific embodiment of the surgical airway isolation device of this application is described below with reference to the illustrations.

[0059] like Figure 1As shown, the surgical airway isolation device according to an embodiment of the present invention includes an endotracheal tube 10, a connecting elbow 20, and an isolation branch tube 30. The endotracheal tube 10 is provided with a first opening 11 and a second opening 12, forming an air passage between the first opening 11 and the second opening 12. A fixing slot 13 is provided on the inner side wall of the endotracheal tube 10. The connecting elbow 20 is disposed on the first opening 11 and is connected to the air passage. The connecting elbow 20 is provided with a treatment inlet 21 and an oxygen supply inlet 22, the oxygen supply inlet 22 being used to connect to an oxygen supply device. The isolation branch tube 30 includes an air passage 31 and an isolation... The bronchus includes a collar 32, an isolation membrane 33, and a first airbag 34. The air duct 31 is detachably connected to the fixing position 13. The air duct 31 and the isolation collar 32 are hollow structures. The isolation collar 32 is connected to the air duct 31. Several air outlets 321 are provided on the outer wall of the isolation collar 32. The isolation membrane 33 is located in the middle of the isolation collar 32. The middle of the isolation membrane 33 is provided with a fixing hole 331 for the air duct endoscope to pass through. The first airbag 34 is arranged around the outside of the isolation collar 32. After the air outlets 321 inflate the first airbag 34, the isolation sleeve is relatively fixed inside the bronchus.

[0060] The endotracheal tube 10, adapter elbow 20, and isolation bronchus 30 can be separate units, requiring disassembly for use to reduce the risk of cross-infection. Alternatively, the endotracheal tube 10 and adapter elbow 20 can be integrated into one unit for ease of use. The endotracheal tube 10 is inserted into the patient's main trachea to support and ventilate it. The adapter elbow 20 is a T-shaped three-way connector that connects to the breathing circuit while allowing the doctor to insert the endoscope through a separate inlet for observation and treatment, avoiding interference between medical device supports.

[0061] The endotracheal tube 10 is a hollow tube with an internal air delivery channel. The air delivery channel is used to deliver oxygen to the patient's airway and to allow the insertion of the endoscope and isolation bronchus 30. The inner wall of the endotracheal tube 10 has a smooth structure to reduce resistance during endoscope insertion and operation. After the endotracheal tube 10 is inserted into the patient's main airway, it can be fixed in the main airway by the elastic contraction of the inner side of the main airway, so that its depth remains relatively fixed.

[0062] The middle part of the isolation membrane 33 is recessed towards the side away from the tracheal tube 10 to form a funnel-shaped isolation cavity. The circumferential dimension of the isolation cavity increases along the direction from the fixing hole 331 to the isolation collar 32.

[0063] The circumferential dimension is the perimeter of the cross-sectional profile of the isolation cavity. The side where the isolation cavity is located is the side where the treatment site is located. The end with the largest circumferential dimension is connected to the isolation collar 32. After the treatment end passes through the fixing hole 331 of the isolation membrane 33, it can provide a larger treatment range.

[0064] The first airbag 34 has an inflatable inner cavity inside, which is connected to the air outlet 321. The cross-sectional profile of the inflatable inner cavity is circular or elliptical.

[0065] The circular or elliptical cross-section allows the first airbag 34 to expand evenly after inflation, adapting to the irregular inner wall of the bronchus and avoiding local high pressure damage to the mucosa.

[0066] The isolation branch pipe 30 also includes an inflation balloon 35, which is connected to the air guide pipe 31 via a pipe. The inflation balloon 35 is used to inflate the first air bag 34.

[0067] The balloon 35 is a manually inflatable device that controls the flow of gas by squeezing and releasing, facilitating rapid adjustment during the procedure.

[0068] The endotracheal tube 10 includes a main tube body 14 and an opening 15. The main tube body 14 is cylindrical. The opening 15 is disposed at the bottom end of the main tube body 14. Along the length direction of the opening 15, the circumferential dimension of the opening 15 gradually decreases. The horizontal side of the opening 15 is recessed inward to form an eagle beak-shaped opening end on the opening 15. The middle part of the opening end is provided with a second opening 12.

[0069] The beak-shaped opening 15 guides the main tube 14 through the glottis, facilitating the insertion of the tracheal tube 10 into the glottis and main trachea, reducing mucosal damage, and the one-piece molding enhances structural strength and prevents leakage at the connection.

[0070] The tracheal tube 10 is also provided with an inflation channel 16 and a second airbag. The second airbag is fixed around the outer side wall of the tracheal tube 10. The inflation channel 16 is a hollow channel embedded in the side wall of the tracheal tube 10 or an integrally formed hollow channel.

[0071] After the second airbag is inflated through the inflation channel 16, it expands and fits tightly against the inner wall of the main trachea, enhancing the fixation and sealing of the endotracheal tube. At the same time, the second airbag can further seal the gap between the endotracheal tube 10 and the main trachea, preventing blood and treatment fluid from overflowing and further improving the reliability of isolation.

[0072] Optionally, the adapter elbow 20 is provided with at least one partition, which divides the adapter elbow 20 into a first channel and a second channel. The partition is arranged vertically, dividing the interior of the adapter elbow 20 into independent channels. The first channel is used for oxygen flow, and the second channel is used for the passage of the treatment endoscope or isolation branch tube 30, so as to avoid airflow interference with instrument operation.

[0073] The fixing position 13 is an opening located on the treatment inlet side wall of the transition elbow 20, so that the air tube can be locked onto the opening. It can be understood that the width of the opening is slightly smaller than the outer diameter of the air tube 31, and the air tube 31 is locked by elastic deformation to prevent it from falling out; during the operation, the depth of the isolation branch tube 30 can be adjusted more smoothly to accurately locate the treatment site.

[0074] The adapter elbow 20 is also provided with a connection inlet 23. The inner wall of the connection inlet 23 is provided with threads. The adapter elbow 20 is connected to the tracheal tube 10 by threads. A sealing ring 24 is provided at the top of the threads.

[0075] When the adapter elbow 20 is tightened, the sealing ring 24 is deformed under pressure, sealing the connection and ensuring that oxygen does not leak out. The threaded connection enhances the stability of the adapter elbow 20, and the sealing ring 24 prevents oxygen leakage and improves the overall airtightness of the device.

[0076] The adapter elbow 20 is also provided with a sealing cover 25, which is connected to the treatment inlet 21.

[0077] The sealing cap 25 is connected to the treatment inlet 21 by threads or snaps, which ensures a sterile environment for the surgical airway isolation device before use and reduces the risk of infection.

[0078] The following is a specific application method of the surgical airway isolation device proposed in this embodiment.

[0079] In clinical application, while observing the laryngoscope, the doctor inserts the endotracheal tube 10 into the patient's glottis. The beak-shaped opening piece 15 opens the glottis, allowing the endotracheal tube 10 to pass through more smoothly and avoiding damage to the glottis. After the endotracheal tube 10 is inserted into place, the adapter elbow 20 is connected to the first opening 11 of the endotracheal tube 10, and the oxygen supply inlet 22 is connected to an external oxygen source. Then, the air tube 31 of the isolation bronchus 30 is inserted into the fixing position 13 inside the endotracheal tube 10, and the isolation collar 32 is pushed along the air channel to the target position of the patient's bronchus. The first air bag 34 is inflated through the air tube 31, causing it to expand and adhere to the inner wall of the bronchus, and the isolation collar 32 is fixed. At this time, the isolation membrane 33 divides the bronchus into upper and lower zones. The upper zone maintains oxygenation, while the oxygen concentration in the lower zone decreases. The doctor inserts the treatment endoscope through the treatment inlet 21 and performs laser treatment on the affected area through the fixing hole 331.

[0080] Compared with existing double-lumen bronchioles, the isolation bronchus 30 of this device has a smaller diameter, which can penetrate deep into the lobar bronchus or segmental bronchus to achieve precise isolation. At the same time, the treatment endoscope can be operated directly through the fixation hole 331 to avoid instrument interference and ensure the safety and effectiveness of laser treatment.

[0081] It should be understood that the application of this application is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A surgical airway isolation device, characterized in that, include: A tracheal tube, wherein a first opening and a second opening are provided on the tracheal tube, and an air passage is formed between the first opening and the second opening. An adapter elbow is provided on the first opening and is connected to the air guide channel. The adapter elbow is provided with a treatment inlet and an oxygen supply inlet. The oxygen supply inlet is used to connect to an oxygen supply device, and a fixing slot is provided on the inner wall of the oxygen supply inlet. An isolation bronchus includes an air duct, an isolation collar, an isolation membrane, and a first airbag. The air duct is detachably connected to the fixing position. The air duct and the isolation collar are hollow structures. The isolation collar is connected to the air duct. Several air outlets are provided on the outer wall of the isolation collar. The isolation membrane is located in the middle of the isolation collar, and a fixing hole for the air endoscope to pass through is provided in the middle of the isolation membrane. The first airbag is arranged around the outside of the isolation collar. After the air outlets inflate the first airbag, the isolation collar is relatively fixed inside the bronchus.

2. The surgical airway isolation device according to claim 1, characterized in that, The middle part of the isolation membrane is recessed towards the side away from the endotracheal tube to form a funnel-shaped isolation cavity. The circumferential dimension of the isolation cavity increases along the direction from the fixing hole to the isolation collar.

3. The surgical airway isolation device according to claim 1, characterized in that, The first airbag has an inflatable inner cavity inside, which is connected to the air outlet. The cross-sectional profile of the inflatable inner cavity is circular or elliptical.

4. The surgical airway isolation device according to claim 1, characterized in that, The isolation branch also includes an inflation balloon, which is connected to the air duct via a pipe. The inflation balloon is used to inflate the first air bladder.

5. The surgical airway isolation device according to claim 1, characterized in that, The endotracheal tube includes: The main body is cylindrical; An opening is provided at the bottom end of the main body. Along the length of the opening, the circumferential dimension of the opening gradually decreases. The horizontal side of the opening is recessed inward to form an eagle-beak-shaped opening end. The second opening is provided in the middle of the opening end.

6. The surgical airway isolation device according to claim 1, characterized in that, The tracheal tube is also provided with an inflation channel and a second air bladder. The second air bladder is fixed around the outer side wall of the tracheal tube. The inflation channel is a hollow channel embedded in the side wall of the tracheal tube or an integrally formed hollow channel.

7. The surgical airway isolation device according to claim 1, characterized in that, The oxygen supply inlet and the treatment inlet of the adapter elbow are perpendicular to each other on their central axes.

8. The surgical airway isolation device according to claim 1, characterized in that, The fixing position is an opening provided on the side wall of the treatment inlet, so that the air tube can be locked onto the opening.

9. The surgical airway isolation device according to claim 1, characterized in that, The adapter elbow is also provided with a connection inlet, and the inner wall of the connection inlet is provided with threads. The adapter elbow is connected to the tracheal tube by the threads, and a sealing ring is provided at the top of the threads.

10. The surgical airway isolation device according to claim 1, characterized in that, The adapter elbow is also equipped with a sealing cover, which is connected to the treatment inlet.

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