A visual airway management tool

Abstract

The present invention discloses a visualized airway management tool for the diagnosis and treatment of airway, mediastinum and lung tissue, the visualized airway management tool comprises a ventilation tube and an operation tube arranged side by side, wherein the ventilation tube is provided with a ventilation tube cavity extending in the length direction, and has a first opening at the distal end, the first opening extends across the tracheal carina, and a first inflatable cuff is provided near the first opening; the ventilation tube is also provided with a second inflatable cuff, the second inflatable cuff is located above the tracheal carina; the ventilation tube is provided with an image sensor below the second inflatable cuff and near the tracheal carina, the image sensor is used to capture images of its front end and the vicinity; the operation tube is provided with an operation tube cavity extending in the length direction, and has a second opening at the distal end; the operation tube is shorter than the ventilation tube, and the second opening of the operation tube is far away from the second inflatable cuff of the ventilation tube. The visualized airway management tool designed by the present invention significantly improves the accuracy and safety of the diagnosis and treatment operation of the multi-technique composite fiber bronchoscope, and fully guarantees the life safety of the patient.

Description

Technical Field

[0001] The present invention relates to an airway management tool in general anesthesia, in particular to a tool for visualized airway management and left / right lung isolation during multi-technique composite fiber bronchoscope operation and treatment. Background Art

[0002] In recent years, the composite diagnosis and treatment technology based on fiberoptic bronchoscopy has developed rapidly. Minimally invasive technologies such as fiberoptic bronchoscopy combined with ultrasound technology, stereotactic positioning technology, interventional thermal ablation technology, and cryoablation technology have been maturely applied in clinical practice. The clinical application of fiberoptic bronchoscopy is no longer limited to the inspection and biopsy of lesions under direct vision. It can also be used to accurately locate, biopsy, and ablate pulmonary nodules at different locations and depths with the help of ultrasound, stereotactic and other technologies. At present, the composite technology of fiberoptic bronchoscopy has realized the integrated diagnosis and treatment plan of precise positioning, puncture biopsy, pathological diagnosis and interventional ablation treatment of "suspicious pulmonary nodules" in clinical practice, see Desai NR, Gildea TR, Kessler E, etc. Precision diagnostic and therapeutic bronchoscopy: clinical technology and remedial plan. Journal of Thoracic Medicine. 2021;160:259-267[DesaiNR,Gildea TR,Kessler E,et al.Advanced Diagnostic and TherapeuticBronchoscopy:Technology and Reimbursement.Chest.2021;160:259-267], and ShallerBD,GildeaTR. What is the clinical value of electromagnetic navigation in lung cancer and to what extent does it require improvement? Expert Rev Respir Med.2020;14:655-669[Shaller BD,Gildea TR.What is the value of electromagnetic navigation in lung cancer and to what extent does it require improvement? Expert Rev Respir Med.2020;14:655-669]. Compared with surgical resection, fiberoptic bronchoscopic combined interventional ablation for lung carcinoma in situ and microinvasive carcinoma has basically the same efficacy, but fiberoptic bronchoscopic combined interventional ablation has the advantages of less trauma, faster recovery, lower medical costs, and higher patient comfort. See Hsia DW, Musani AI. Bronchoscopic Therapies for Peripheral Lung Malignancies. Clin Chest Med. 2018; 39: 245-259.Recently, the AI ​​fiberoptic bronchoscopic diagnosis and treatment system (Robotic Bronchoscopic System) has been successfully applied in clinical practice. Compared with the diagnosis and treatment operation of artificial fiberoptic bronchoscopic composite technology, it is more accurate and effective for the diagnosis and treatment of pulmonary nodules with a diameter of 1 to 5 cm, with fewer clinical complications. See Chen AC, Pastis NJ Jr, Mahajan AK, et al. Robotic Bronchoscopy for Peripheral Pulmonary Lesions: A Multicenter Pilot and Feasibility Study (BENEFIT). Chest. 2021; 159: 845-852. [Chen AC, Pastis NJ Jr, Mahajan AK, et al. Robotic Bronchoscopy for Peripheral Pulmonary Lesions: A Multicenter Pilot and Feasibility Study (BENEFIT). Chest. 2021; 159: 845-852]. In the future clinical diagnosis and treatment of lung cancer, diagnosis and treatment operations assisted by fiberbronchoscope composite technology will play an increasingly important role and role, especially for single small lung cancer, which may replace minimally invasive surgical resection and become the mainstream treatment method.

[0003] At present, the main problem that hinders the widespread application of diagnosis and treatment operations assisted by fiberoptic bronchoscopy combined technology in clinical practice is that the outer diameter of the fiberoptic bronchoscope as a carrier is greatly thickened when combined with single or multiple auxiliary technologies, with the maximum outer diameter reaching 7mm, and the clinical operation space still needs to leave 1-2mm diameter. There is no airway management tool that can be used with it in clinical practice at home and abroad to achieve full lung isolation (lung isolation refers to the use of airway management tools to physically separate the ventilation pathways of the two sides of the lungs at the level of the tracheal carina or the left / right main bronchus, thereby achieving complete physical isolation of the left / right lung and the coexistence of different ventilation modes of the left / right lung, such as Figure 1 Currently, 8 #The use of single-lumen endotracheal tubes (the largest endotracheal tubes clinically, with a diameter of 8mm) or laryngeal masks (diameter>8mm) to manage the airway barely meets the diagnostic and treatment operation space of the composite fiber bronchoscope, but cannot physically isolate the affected lung from the healthy lung. In the case where full lung isolation cannot be achieved, the diagnostic and treatment operations assisted by the fiber bronchoscope composite technology have many uncontrollable factors (such as diagnostic and treatment operations that accidentally injure normal tissues or blood vessels due to the respiratory movement of the lungs), hidden dangers (such as invasive diagnostic and treatment operations that cause malignant tumor cells or infections to spread directly to the contralateral lung through the trachea with the help of airway secretions or bleeding), and even life-threatening (such as sudden unplanned bleeding during the diagnostic and treatment operation that causes "double lungs to be flooded" and endangers life), and the patient's life safety cannot be guaranteed to the greatest extent. Maximizing the safety of patients' lives is the common basic principle of all medical operations. Summary of the invention

[0004] In view of the technical problems raised by the background technology, the present invention provides a visual airway management tool for the diagnosis and treatment of airway, mediastinum and lung tissue, etc., to ensure the life safety of patients during the diagnosis and treatment process, and at least partially solve at least one of the above-mentioned technical problems.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention relates to a visualized airway management tool for diagnosis and treatment of airway, mediastinum and lung tissue, wherein the visualized airway management tool comprises a ventilation tube and an operation tube arranged side by side, wherein:

[0007] The ventilation tube is provided with a ventilation tube cavity extending in the length direction, and has a first opening at the distal end, the first opening extends across the tracheal carina, and a first inflatable cuff is provided near the first opening;

[0008] The ventilation tube is also provided with a second inflatable cuff, and the second inflatable cuff is located above the tracheal carina;

[0009] The ventilation tube is provided with an image sensor below the second inflatable cuff and near the tracheal carina, and the image sensor is used to capture images of its front end and its vicinity;

[0010] An operating tube lumen extending along the length direction is provided inside the operating tube, and a second opening is provided at the distal end. The operating tube lumen serves as a passage for the multi-technology composite fiber bronchoscope and other surgical diagnostic and treatment instruments to penetrate; the operating tube is shorter than the ventilation tube, and the second opening of the operating tube is far away from the second inflatable cuff of the ventilation tube. After the visualized airway management tool is inserted into the airway, the second opening of the operating tube is 1-2 cm away from the glottis.

[0011] In a further preferred embodiment, the cross-section of the operation lumen is circular.

[0012] In a further preferred embodiment, the cross-sectional diameter of the operation lumen is 5-10 mm.

[0013] In a further preferred embodiment, the cross-section of the ventilation lumen is meniscus-shaped.

[0014] In a further preferred embodiment, the cross-sectional area of ​​the operation lumen is larger than the cross-sectional area of ​​the ventilation lumen.

[0015] In a further preferred embodiment, the overall cross-sectional diameter of the ventilation tube and the operation tube of the visualization airway management tool above the second opening does not exceed 14 mm.

[0016] In a further preferred embodiment, the cross section of the meniscus-shaped ventilation lumen includes a first arc segment facing the operation lumen, and the first arc segment matches a second arc segment of the cross section of the operation lumen.

[0017] In a further preferred embodiment, a first outer side wall of the ventilation tube from the second opening of the operating tube to a portion close to the second inflatable cuff facing the operating tube is arc-shaped.

[0018] In a further preferred embodiment, from the upper end of the second inflatable cuff to the first opening position of the ventilation tube, the outer wall of the ventilation tube cross-section is circular.

[0019] In a further preferred embodiment, after the visualized airway management tool is inserted into the airway, the second opening of the operation tube is 1-2 cm away from the glottis.

[0020] A further preferred embodiment further includes a first inflation lumen connected to the first inflatable cuff, and a second inflation lumen connected to the second inflatable cuff, the first inflation lumen and the second inflation lumen are respectively connected to an air source at the proximal end of the visualization airway management tool, and the first inflatable cuff and the second inflatable balloon can be respectively controlled to switch between a contracted state and an inflated state.

[0021] In a further preferred embodiment, the distance between the lower edge of the second inflatable cuff and the upper edge of the first inflatable cuff is 2-3 cm.

[0022] In a further preferred embodiment, the first inflatable cuff and / or the second inflatable cuff is made of elastic material.

[0023] In a further preferred embodiment, the second inflatable cuff is an eccentric cuff, and when the second inflatable cuff is in an inflated state, it occupies 1 / 4 to 1 / 5 of the volume on one side of the ventilation tube and 3 / 4 to 4 / 5 of the volume on one side of the operating tube.

[0024] In a further preferred embodiment, the first inflatable cuff and / or the second inflatable cuff is a conical cuff.

[0025] In a further preferred embodiment, the outer wall of the visualization airway management tool is entirely coated with a hydrophilic lubricating coating.

[0026] In a further preferred embodiment, the ventilation pipe wall is provided with a reinforcement structure.

[0027] In a further preferred embodiment, the reinforcement structure is 1-5 steel wires.

[0028] In a further preferred embodiment, the ventilation pipe is entirely made of hard material, or the ventilation pipe from the second opening to the first opening is made of hard material.

[0029] The present invention also provides another visualized airway management tool for diagnosis and treatment of airway, mediastinum and lung tissue, wherein the visualized airway management tool comprises a ventilation tube and an operation tube arranged side by side, wherein:

[0030] The ventilation tube is provided with a ventilation tube cavity extending in the length direction, and has a first opening at the distal end, and the first opening extends across the tracheal carina;

[0031] The ventilation tube is provided with a second inflatable cuff, and the second inflatable cuff is located above the tracheal carina;

[0032] The ventilation tube is provided with an image sensor at the lower edge of the second inflatable cuff, near the tracheal carina, and the image sensor is used to capture images of its front end and the vicinity;

[0033] An operating tube lumen extending along the length direction is provided inside the operating tube, and a second opening is provided at the distal end. The operating tube lumen serves as a passage for the multi-technology composite fiber bronchoscope and other surgical diagnostic and treatment instruments to penetrate; the operating tube is shorter than the ventilation tube, and the second opening of the operating tube is far away from the second inflatable cuff of the ventilation tube. After the visualized airway management tool is inserted into the airway, the second opening of the operating tube is 1-2 cm away from the glottis.

[0034] The present invention is currently the only airway management tool that can achieve left / right lung isolation during the diagnosis and treatment of multi-technology composite fiber bronchoscopes. It provides the most optimized operating environment for the diagnosis and treatment of multi-technology composite fiber bronchoscopes, completely eliminates the influence of respiratory movement on the diagnosis and treatment operation and operation accuracy, and eliminates the possibility of iatrogenic cross-infection of both lungs and direct tumor dissemination during the diagnosis and treatment of multi-technology composite fiber bronchoscopes. It ensures the normal breathing and gas exchange function of the non-operative lung and protects the patient's life safety. Dual-view auxiliary observation makes the diagnosis and treatment of multi-technology composite fiber bronchoscopes more accurate and safe. It provides an operating environment and safety guarantee for the diagnosis and treatment of multi-technology composite fiber bronchoscopes for mediastinal masses. It indirectly shortens the length of hospital stay, reduces medical costs, and promotes rapid recovery of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a front view of a prior art airway management tool;

[0036] Figure 2 A stereoscopic diagram of an embodiment of a visualized airway management tool protected by the present invention;

[0037] Figure 3 A front view of an embodiment of a visualized airway management tool protected by the present invention;

[0038] Figure 4 A front view of an embodiment of the visualization airway management tool protected by the present invention for inserting into an airway;

[0039] Figure 5 for Figure 3 AA section view along the middle line;

[0040] Figure 6 for Figure 3 Cross-sectional view along the middle line BB;

[0041] Figure 7 for Figure 4 CC section view along the middle edge;

[0042] Figure 8 A front view of another embodiment of the visual airway management tool protected by the present invention;

[0043] Fig. 9 A front view of another embodiment of the visualization airway management tool for inserting into the airway protected by the present invention;

[0044] Fig.10 for Fig. 9 DD section view along the middle;

[0045] Fig.11 A stereoscopic diagram of another embodiment of the visualized airway management tool protected by the present invention;

[0046] Fig.12 A front view of another embodiment of the visualized airway management tool protected by the present invention;

[0047] Fig.13 A front view of yet another embodiment of the visualized airway management tool protected by the present invention;

[0048] Fig.14 for Fig.13 DD section view along the middle;

[0049] Fig.15 A three-dimensional diagram of another embodiment of the visualized airway management tool protected by the present invention;

[0050] Fig.16 A front view of another embodiment of the visualized airway management tool protected by the present invention;

[0051] Fig.17 A partial disassembled diagram of another embodiment of the visualized airway management tool protected by the present invention;

[0052] Fig.18 A front view of yet another embodiment of the visualized airway management tool protected by the present invention;

[0053] Fig.19 A front view of another embodiment of the visualization airway management tool for inserting into an airway protected by the present invention;

[0054] Fig. 20 for Fig.19 DD section view along the middle.

[0055] In the figure: 100-visual airway management tool, 1-ventilation tube, 11-ventilation tube cavity, 111-first arc segment, 112-first outer side wall, 12-first opening, 13-first inflatable cuff, 14-first inflatable tube cavity, 15-second inflatable cuff, 16-second inflatable tube cavity, 17-image sensor, 18-image sensor cavity, 19-ventilation tube connecting section, 191-connecting device, 1911-ventilation tube cavity section, 1912-step, 2-operating tube, 21-operating tube cavity, 211-second arc segment, 22-second opening, 23-operating tube retention section, 3-trachea, 31-left bronchus, 32-right bronchus, 33-glottis, 34-tracheal carina. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and Examples. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0059] like Figure 2-Figure 7 As shown, Figure 2 The front view of a visualized airway management tool 100 for airway diagnosis and treatment protected by the present invention, wherein the end of the visualized airway management tool 100 used for insertion into the patient's airway (especially the bronchus) is the distal end or lower end, and the end used for connection with a ventilator, an air source, a display device, etc. is the proximal end or upper end. The above-mentioned visualized airway management tool 100 includes a ventilation tube 1 and an operating tube 2 arranged side by side, wherein the ventilation tube 1 is longer than the operating tube 2, and preferably the ventilation tube 1 terminates in the bronchus, wherein the bronchi include the left bronchus 31 and the right bronchus 32, and the operating tube 2 terminates in the trachea 3, and more preferably the operating tube 2 terminates below the glottis 33, about 1-2 cm away from the glottis 33.

[0060] The ventilation tube 1 is provided with a ventilation lumen 11 extending along the length direction of the airway management tool 100. The ventilation lumen 11 extends from the proximal end to the distal end and has a first opening 12 at the distal end. The proximal end of the ventilation lumen 11 can be connected to a ventilator, and the first opening 12 at the distal end of the ventilation lumen extends across the carina into the left bronchus 31 or the right bronchus 32. The ventilation tube 1 is used to communicate with the patient's left lung and / or right lung, thereby realizing mechanical ventilation of the left lung and / or right lung. The side hole on the outer wall between the first opening 12 and the first inflatable airbag 13 is suitable as a backup ventilation hole when the first opening 12 is blocked.

[0061] Furthermore, the ventilation tube 1 is provided with a first inflatable cuff 13 near the first opening 12, and a first inflatable tube cavity 14 is provided in the tube wall of the ventilation tube 1. The distal end of the first inflatable tube cavity 14 is connected to the first inflatable cuff 13, and the proximal end of the first inflatable tube cavity 14 is connected to the air source through a pipeline. A valve is provided on the pipeline to control whether the air source is connected to the first inflatable tube cavity 14, thereby controlling the first inflatable cuff 13 to switch between a contracted state and a filled state.

[0062] Furthermore, the ventilation tube 1 is provided with a second inflatable cuff 15 above the carina, and a second inflatable lumen 16 is provided in the tube wall of the ventilation tube 1. The distal end of the second inflatable lumen 16 is connected to the second inflatable cuff 15, and the proximal end of the second inflatable lumen 16 is connected to the air source through a pipeline. A valve is provided on the pipeline to control whether the air source is connected to the second inflatable lumen 16, thereby controlling the second inflatable cuff 15 to switch between a contracted state and a filled state.

[0063] More preferably, the distance between the upper edge of the first inflatable cuff 13 and the lower edge of the second inflatable cuff 15 is 1-3 cm, and more preferably the distance is about 2 cm. Under the premise of not affecting the normal ventilation of the left or right upper lobe of the lung, the second inflatable cuff 15 is as close to the tracheal carina 34 as possible, so as to maximize the operation space through the operation tube 2.

[0064] Furthermore, the ventilation tube 1 is also provided with an image sensor 17, which is disposed between the tracheal carina 34 and the second inflatable cuff 15, and close to the tracheal carina 34. The image sensor 17 is used to capture images of the front end and the vicinity thereof. Preferably, the image sensor 17 is disposed about 1-2 cm above the first inflatable cuff 13.

[0065] Furthermore, an image sensor lumen 18 is provided in the wall of the ventilation tube 1 for accommodating the image sensor 17 and a cable. The distal end of the cable is connected to the image sensor 17, and the proximal end can be connected to a display device through a connector. The image signal captured by the image sensor 17 at and near its front end is transmitted to the proximal display device through the cable. The doctor can observe the position of the airway management tool 100 inserted into the airway and the image of its front end in real time through the display device. For example, during the insertion of the airway management tool 100, it is possible to observe in real time whether it enters the airway to avoid accidentally entering the esophagus; observe in real time the position of the airway management tool 100 relative to the carina 34 to determine whether it is displaced; observe the position of the first inflatable cuff 13 and whether it is filled to determine whether the left bronchus 31 or the right bronchus 32 is effectively blocked to avoid safety issues such as patient hypoxia.

[0066] Further preferably, in order to improve the clarity of the captured image, a cold light source is arranged around the image sensor 17 to provide an illumination source in front of the image sensor 17. More preferably, the image sensor 17 is a micro high-definition camera or a micro ultra-high-definition camera. Further preferably, a flushing nozzle is arranged on the side of the camera lens, and the flushing nozzle sprays a cleaning liquid toward the camera lens. The cleaning liquid includes physiological saline, which can wash away sputum, blood, human tissue, etc. attached to the lens, thereby improving the clarity of the captured image.

[0067] Preferably, the first inflatable cuff 13 and / or the second inflatable cuff 15 are made of elastic material, so that when the first inflatable cuff 13 and the second inflatable cuff 15 are in a contracted state, they are close to the outer wall of the ventilation tube 1, thereby avoiding more operating space. Preferably, the first inflatable cuff 13 and the second inflatable cuff 15 are made of TPU material, which has outstanding physical and mechanical properties, good elasticity, light material and good compatibility, which is beneficial to the protection of the airway mucosa.

[0068] Furthermore, when the airway management tool 100 is inserted into the patient's airway, the second inflatable cuff 15 can cooperate with the inner wall of the trachea 3 in the filled state, and the first inflatable cuff 13 can cooperate with the inner wall of the left bronchus 31 or the inner wall of the right bronchus 32 in the filled state. Further preferably, when the two cuffs 13 and 15 are in the filled state, the size of the second inflatable cuff 15 is larger than the first inflatable cuff 13, so that the second inflatable cuff 15 can be pressed and matched with the inner wall of the trachea 3, and the first inflatable cuff 13 can be pressed and matched with the inner wall of the bronchus. Further preferably, the first inflatable cuff 13 and / or the second inflatable cuff 15 are conical cuffs, that is, the cuff cross-section along the extension direction of the airway management tool 100 is roughly truncated cone or cone, the cuff with a larger size is toward the proximal end, and the cuff with a smaller size is toward the distal end. The two cuffs 13 and 15 are conical cuffs, and the diameter of the conical cuff is orderly and gradually reduced from the proximal end to the distal end, so that the conical cuff can be completely fitted with the tracheal wall in a certain plane of the conical cuff, and there are no wrinkles in this plane cuff, which completely prevents the occurrence of micro-leakage through the cuff wrinkle gap. The first inflatable cuff 13 is a conical cuff, and the advantage of the conical cuff is that the left or right bronchus is completely blocked with the smallest cuff volume entering the left or right bronchus, thereby minimizing the impact of the first inflatable cuff 13 on the normal ventilation of the left or right upper lobe.

[0069] Furthermore, when the ventilation tube 1 is inserted into the left bronchus 31 or the right bronchus 32 and the first inflatable cuff 13 is in an inflated state, the left lung and the right lung can be isolated; and when the first inflatable cuff 13 is in a deflated state, the left lung and the right lung are connected.

[0070] The operation tube 2 is provided with an operation tube lumen 21 extending along the length direction of the airway management tool 100. The distal end of the operation tube 2 has a second opening 22. The operation tube lumen 21 terminates at the second opening 22 at the distal end. Figure 2It can be seen that the operating tube 2 is much shorter than the ventilation tube 1, and the second opening 22 of the operating tube 2 is far away from the second inflatable cuff 15 of the ventilation tube 1. Preferably, after the airway management tool 100 is inserted into the airway, the distance between the second opening 22 of the operating tube 2 and the glottis 33 is less than 2 cm, and the further preferred distance is 1-2 cm. In this way, space for diagnosis and treatment of mediastinal masses is reserved between the second opening 22 of the operating tube 2 and the second inflatable cuff 15, so as to perform EBUS-TBNA surgery, that is, using a fiber bronchoscope to reach the tracheal surface of the mediastinal lesions through the main airway, and locating, biopsy or treating the mediastinal masses under the guidance of the ultrasonic probe at the front end of the fiber bronchoscope.

[0071] Further preferably, in order to provide insertion and operation space for surgical instruments such as multi-technique composite fiber bronchoscopes, the cross-section of the operation lumen 21 is circular, and further preferably, the cross-sectional area of ​​the operation lumen 21 is larger than the cross-sectional area of ​​the ventilation lumen 11. Further preferably, the cross-sectional diameter of the operation lumen 21 is 5-10 mm, and more preferably, the cross-sectional diameter of the operation lumen 21 is 8 mm.

[0072] Further preferably, in order to make the airway management tool 100 as compact as possible, as Figure 4 As shown, the cross-section of the ventilation lumen 11 is designed to be crescent-shaped. The cross-section of the crescent-shaped ventilation lumen 11 includes a first arc segment 111 facing the operating lumen 21. The first arc segment 111 matches the second arc segment 211 of the circular cross-section operating lumen 21. That is to say, the cross-section of the crescent-shaped ventilation lumen 11 is in a state of embracing the circular cross-section operating lumen 21.

[0073] Furthermore, the outer diameter of the entire cross-section of the ventilation tube 1 and the operating tube 2 above the second opening 22 of the airway management tool 100 does not exceed 14 mm, which facilitates the insertion of the airway management tool 100 into the human body through the glottis.

[0074] Further preferably, in order to leave more operating space for mediastinal space-occupying surgery, Figure 5 As shown, the first outer side wall 112 of the ventilation tube 1 from the second opening 22 of the operating tube 2 to the second inflatable cuff 15 toward the operating tube 2 is in an arc shape.

[0075] As a preferred embodiment, at the position of the first inflatable cuff 13, the ventilation tube cavity 11 at the distal end of the ventilation tube 1 is set to a circular cross-section, and the outer wall of the ventilation tube 1 at this location is also close to a circular cross-section, which can improve the connection firmness between the first inflatable cuff 13 and the tube wall of the ventilation tube 1.

[0076] Further preferably, in order to facilitate the arrangement of the first inflatable cuff 13 and the second inflatable cuff 15 on the outer wall of the ventilation tube 1, the cross-sectional outer wall shape of the ventilation tube 1 from the upper end of the second inflatable cuff 15 to the first opening 12 of the ventilation tube 1 is circular, which can improve the connection firmness between the first inflatable cuff 13 and the second inflatable cuff 15 and the tube wall.

[0077] In addition, the cross-sectional outer wall shape of the ventilation tube 1 between the second opening 22 of the operating tube 2 and the first opening 12 of the ventilation tube 1 may also be one of a crescent shape, an ellipse, or a semicircle.

[0078] A further preferred embodiment is as follows Figure 8-Figure 10 As shown, the second inflatable cuff 15 is an eccentric cuff. More preferably, when the second inflatable cuff 15 is in a filled state, with the longitudinal axis O of the ventilation tube 1 in the second inflatable cuff 15 as the center, the second inflatable cuff 15 occupies 1 / 4 to 1 / 5 of the volume on one side of the ventilation tube 1, and occupies 3 / 4 to 4 / 5 of the volume on the side of the operating tube 2. In this way, when the second inflatable cuff 15 is in a filled state, the eccentric cuff 15 can push the ventilation tube 1 as a whole close to the tracheal wall, thereby freeing up more diagnosis and treatment space between the second opening 22 of the operating tube 2 and the second inflatable cuff 15.

[0079] The present invention also provides another embodiment of a visual airway management tool, such as Figure 11-Figure 12 As shown, the main difference from the previous embodiment lies in the difference in the lumen cross-sections of the ventilation tube 1 and the operating tube 2 at the location of the second inflatable cuff 15 .

[0080] In order to facilitate the installation of the second inflatable cuff 15, a section of the operation tube 2 is still retained at this position, and this section of the operation tube is defined as the operation tube retention section 23, that is, the operation tube retention section 23 extends from the upper end of the second inflatable cuff 15 to the lower end of the second inflatable cuff 15, that is, the second inflatable cuff 15 is arranged on the outer wall surface of the ventilation tube 1 and the operation tube retention section 23, so that the second inflatable cuff 15 is fixedly connected to the outer wall surface of the tube protruding outward, which can prevent the second inflatable cuff 15 from falling off from the tube wall surface in the filled state, and improve the connection firmness between the second inflatable cuff 15 and the tube wall. Preferably, the tube cavity of the operation tube retention section 23 here can be blocked, and the blocking method can be a filler, such as blocking glue, and further preferably, the filler is blocked at the upper end / proximal end of the operation tube retention section 23.

[0081] In order to reserve space for diagnosing and treating mediastinal masses between the second opening 22 and the second inflatable cuff 15, in this embodiment, firstly, a continuous and parallel ventilation tube 1 and an operation tube 2 are formed from the proximal end to the lower end of the second inflatable cuff 15. Preferably, the ventilation tube 1 and the operation tube 2 are integrally formed, and then the operation tube 2 between the upper end of the second inflatable cuff 15 and the second opening 22 is removed. Preferably, the operation tube 2 is removed by cutting, grinding and other processes to form an operation tube reserved section 23, and the operation tube reserved section 23 at the second inflatable cuff 15 is blocked, thereby forming a space for diagnosing and treating mediastinal masses.

[0082] A further preferred embodiment is as follows Figure 13-14 As shown, the second inflatable cuff 15 is designed as an eccentric cuff. More preferably, when the second inflatable cuff 15 is in a filled state, with the longitudinal axis O of the ventilation tube 1 in the second inflatable cuff 15 as the center, the second inflatable cuff 15 occupies 1 / 4 to 1 / 5 of the volume on one side of the ventilation tube 1, and occupies 3 / 4 to 4 / 5 of the volume on the side of the operating tube 2. In this way, when the second inflatable cuff 15 is in a filled state, the eccentric cuff 15 can push the ventilation tube 1 as a whole close to the tracheal wall, thereby freeing up more diagnosis and treatment space between the second opening 22 of the operating tube 2 and the second inflatable cuff 15.

[0083] The present invention also provides another optional embodiment, such as Figure 15-17 As shown, only the ventilating tube 1 is retained at the position of the second inflatable cuff 15, and this section of the ventilating tube is defined as the ventilating tube connecting section 19. Preferably, the ventilating tube connecting section 19 extends from the upper end of the second inflatable cuff 15 to the position of the image sensor 17, and the outer side wall of the ventilating tube connecting section 19 facing the operating tube 2 is an outwardly convex arc shape, so that the second inflatable cuff 15 is fixedly connected to the outwardly protruding outer wall surface of the tube, which can prevent the second inflatable cuff 15 from falling off the tube wall surface in the filled state, thereby improving the connection firmness between the second inflatable cuff 15 and the tube wall. Further preferably, as Fig.17 As shown, the ventilation tube connection section 19 and the ventilation tube 1 at the upper end are split structures and are connected by a connection device 191. Preferably, the connection device 191 includes a ventilation tube cavity section 1911 that becomes thinner toward the ventilation tube cavity 11, and the inner wall of the ventilation tube cavity section 1911 matches the inner wall of the ventilation tube cavity 11. The connection device 191 also includes a step 1912 located on the inner wall of the upper ventilation tube cavity 11 that matches the ventilation tube cavity section 1911. The ventilation tube cavity section 1911 can be inserted into the inner wall of the upper ventilation tube cavity 11, and the upper end of the ventilation tube cavity section 1911 abuts against the step 1912 on the inner wall of the upper ventilation tube cavity 11, and then the ventilation tube connection section 19 is connected and fixed to the upper ventilation tube 1 by glue.

[0084] Preferably, the ventilation tube 1 and the operating tube 2 at the upper end of the second inflatable cuff 15 are integrally formed, and then the ventilation tube connecting section 19 is connected and fixed to the ventilation tube 1 at the upper end.

[0085] Preferably, the ventilation tube connection section 19 is integrally formed with the ventilation tube 1 at the distal end, and can also be formed separately and then connected and fixed. Preferably, the ventilation tube cavity 11 at the distal end of the ventilation tube 1 is set to a circular cross section, and the outer wall of the ventilation tube 1 at this location is also close to a circular cross section, which can also improve the connection firmness between the first inflatable cuff 13 and the wall of the ventilation tube 1.

[0086] A further preferred embodiment is as follows Figure 18-Figure 20 As shown, the second inflatable cuff 15 is designed as an eccentric cuff. More preferably, when the second inflatable cuff 15 is in a filled state, with the longitudinal axis O of the ventilation tube 1 in the second inflatable cuff 15 as the center, the second inflatable cuff 15 occupies 1 / 4 to 1 / 5 of the volume on one side of the ventilation tube 1, and occupies 3 / 4 to 4 / 5 of the volume on the side of the operating tube 2. In this way, when the second inflatable cuff 15 is in a filled state, the eccentric cuff 15 can push the ventilation tube 1 as a whole close to the tracheal wall, thereby freeing up more diagnosis and treatment space between the second opening 22 of the operating tube 2 and the second inflatable cuff 15.

[0087] In the above embodiment, it is further preferred that the outer wall of the above visualization airway management tool 100 is entirely coated with a hydrophilic lubricating coating to facilitate smooth insertion into the airway through the patient's glottis.

[0088] Further preferably, since the ventilation pipe 1 from the second opening 22 to the first opening 12 is designed to be longer and thinner, and the temperature in the airway is relatively high, usually 37°C, the ventilation pipe 1 is easily deformed. In this embodiment, a reinforcement structure is provided in the tube wall of the ventilation pipe 1. Preferably, the reinforcement structure is a steel wire buried in the tube wall of the ventilation pipe 1. More preferably, the number of the steel wires is 1-5.

[0089] As a preferred embodiment, the ventilation pipe 1 is made of medium hardness material as a whole, or the ventilation pipe from the second opening 22 to the first opening 12 is made of medium hardness material. The preferred medium hardness material is a material with a Shore hardness between 70A-95A, including but not limited to PVC, TPU, TPR, TPE, etc., preferably TPU material.

[0090] The following lists the related usage methods of the first inflatable cuff 13 and the second inflatable cuff 15:

[0091] 1. When the second inflatable cuff 15 is inflated and the first inflatable cuff 13 is in deflated, the tracheal carina 34 is isolated and both lungs are ventilated to isolate the surgical operation area from both lungs during mediastinal tissue diagnosis and treatment (EBUS-TBNA surgery).

[0092] 2. The second inflatable cuff 15 is in a deflated state and the first inflatable cuff 13 is in an inflated state, achieving left / right lung isolation.

[0093] 3. When the second inflatable cuff 15 is inflated and the first inflatable cuff 13 is inflated, if unplanned massive bleeding occurs during mediastinal tissue diagnosis and treatment (EBUS-TBNA surgery), the second inflatable cuff 15 is inflated and moves upward to compress the bleeding site of the diagnosis and treatment puncture to stop bleeding, and the first inflatable cuff 13 is inflated and moves back to the carina to isolate tracheal bleeding from both lungs. The second inflatable cuff 15 is inflated to compress and stop bleeding, thereby reducing the amount of bleeding and gaining time for subsequent treatment. The first inflatable cuff 13 is inflated to ensure that both lungs are not submerged, ventilation and oxygenation are normal, and the patient's life safety is guaranteed.

[0094] As an optional embodiment, based on the above embodiment, the first inflatable cuff 13 on the ventilation tube 1 can be omitted, and only the second inflatable cuff 15 is retained, and other structures are the same. The visualized airway management tool 100 of this embodiment can be used for the diagnosis and treatment of the airway, mediastinum and lung tissue.

[0095] The following is a specific embodiment of clinical application of a visualized airway management tool 100 for airway diagnosis and treatment protected by the present invention:

[0096] Example 1: Diagnosis and treatment of the affected lung with multi-technique composite fiber bronchoscope

[0097] In the existing technology, fiberoptic bronchoscopes are used as carriers, combined with magnetic navigation stereotactic or ultrasound or radiofrequency ablation or cryoablation technologies, to greatly increase the outer diameter of fiberoptic bronchoscopes to 7-8mm (the outer diameter of fiberoptic bronchoscopes for inspection is 2-3mm). During diagnosis and treatment, an operating space of 1-2mm in diameter must be reserved. Currently, only 8mm can be used clinically. # Endotracheal tubes (the largest endotracheal tube in clinical practice, with an inner diameter of 8 mm) or laryngeal masks (with an inner diameter greater than 8 mm) are used to manage the airway to meet the diagnostic and treatment requirements of multi-technique composite fiberoptic bronchoscopes. # Neither tracheal tubes nor laryngeal masks can achieve lung isolation, so during the diagnosis and treatment of composite fiberbronchoscopes, there must be varying degrees of respiratory movement in the affected lung. The uncontrollable relative movement between the lesion and the fiberbronchoscope caused by respiratory movement has varying degrees of impact on the precise positioning of the lesion, biopsy, and collateral damage to surrounding normal tissues during ablation treatment. In severe cases, respiratory movement may cause accidental entry or injury to blood vessels, resulting in unplanned bleeding, causing "flooding" of both lungs, varying degrees of damage to the gas exchange and oxygenation functions of the lungs, and even endangering the patient's life.

[0098] When the visualization airway management tool 100 protected by the present invention is inserted into the patient's trachea 3, the image sensor 17 can always monitor the image of its front end, the first opening 12 at the front end of the ventilation tube 1 crosses the carina 34 and is inserted into the bronchus of the non-affected lung, the first inflatable cuff 13 is in a filled state, supported on the inner wall of the bronchus of the non-affected lung, and the relative position of the front end of the ventilation tube 1 and the bronchus of the non-affected lung is fixed, and the second inflatable cuff 15 remains in an uninflated contracted state. At this time, the healthy lung and the affected lung are physically separated by the first inflatable cuff 13, and mechanical ventilation is performed for the healthy lung through the ventilator and the ventilation tube 1. Under general anesthesia, the affected lung stops breathing, and the respiratory movement disappears and is in a static state. At this time, the operating lumen 21 serves as a channel for the multi-technology composite fiber bronchoscope and other surgical diagnostic and treatment instruments to penetrate, so that the relevant lesions of the affected lung can be accurately diagnosed and treated.

[0099] First, this embodiment provides an optimized operating environment for the diagnosis and treatment of multi-technology composite fiber bronchoscopes. The design of the present invention can achieve physical isolation of the affected lung and the healthy lung at the level of the tracheal carina during the composite fiber bronchoscope diagnosis and treatment operation. While the healthy lung is mechanically ventilated to ensure gas exchange and maintain normal oxygenation of the body, the affected lung can stop breathing for a long time throughout the process and remain static, completely eliminating the impact of respiratory movement on the operation of the lesion site, making the positioning, biopsy and treatment of the lesion site more accurate, and reducing the collateral damage to the surrounding normal tissues during the ablation process to a minimum, minimizing the possibility of unplanned bleeding during the composite fiber bronchoscope operation, greatly improving the safety of the composite fiber bronchoscope diagnosis and treatment operation, and ensuring the patient's life safety.

[0100] Secondly, in order to clarify the nature and pathological type of pulmonary nodules, routine operations such as lung lavage or biopsy, deep puncture, etc. are required to be assisted by fiberoptic bronchoscopy composite technology, which is often accompanied by wounds or tissue bleeding of varying degrees at the biopsy and puncture sites. Bacteria (such as Mycobacterium tuberculosis, Klebsiella pneumoniae, etc.), parasites (such as Echinococcus granulosus) or tumor cells in the lesion site can directly spread, colonize or transfer to the contralateral lung (healthy lung) through the airway lavage fluid or bleeding at the puncture site, causing iatrogenic spread and metastasis. The design of the present invention can physically isolate the left lung and the right lung at the level of the tracheal carina, and achieve bilateral lung isolation throughout the process of composite fiberoptic bronchoscopy diagnosis and treatment, completely confining the possible spread of infection or tumor cells to the affected lung, and completely blocking the possibility of direct spread and transfer to the healthy lung through the airway, eliminating the possibility of iatrogenic spread during the diagnosis and treatment of multi-technique composite fiberoptic bronchoscopy.

[0101] Secondly, ensure the normal breathing and gas exchange function of the non-operative lung to protect the patient's life safety. During the diagnosis and treatment of multi-technique composite fiber bronchoscopy, the most dangerous complication is unplanned massive bleeding. Bleeding can quickly "flood" the affected side or even both lungs through the trachea at all levels, causing varying degrees of damage or even loss of lung tissue gas exchange and oxygenation function, and varying degrees of hypoxia and functional damage to various tissues and organs of the body. In severe cases, it can cause permanent brain hypoxic damage, brain death or clinical death. Unplanned massive bleeding is characterized by sudden occurrence, time urgency and serious consequences. Especially when bleeding causes both lungs to be "flooded", the time left for doctors to rescue and treat is very limited, which seriously endangers the patient's life safety. The visualized airway management tool disclosed in the present invention can physically isolate the tracheal communication between the affected lung and the healthy lung at the level of the carina during the diagnosis and treatment of multi-technique composite fiber bronchoscope. If unplanned bleeding occurs during the operation, the bleeding can be confined to the affected lung regardless of the amount of bleeding, thus avoiding the healthy lung from being "flooded", ensuring the normal gas exchange and oxygenation function of the healthy lung, and meeting the normal oxygen supply needs of various tissues and organs of the body. The patient's life safety is fully guaranteed, while precious buffer time is gained for rescue or subsequent surgery. Ensuring the life safety of patients during the diagnosis and treatment of multi-technique composite fiber bronchoscope is the most important clinical value of this design invention.

[0102] Finally, dual-viewing angle assisted observation makes the diagnosis and treatment of multi-technology composite fiber bronchoscope more accurate and safe. The diagnosis and treatment operation of multi-technology composite fiber bronchoscope is limited by the viewing angle of the fiber bronchoscope. It can only be observed from the proximal end to the distal end and the viewing angle is limited (viewing angle 120°), and there is a certain range of visual and operational blind spots. The visualization airway management tool designed by the present invention is equipped with a high-definition cold light source camera 17 about 1-2 cm above the first inflatable cuff 13 of the ventilation tube 1, which can observe the respective positions of the fiber bronchoscope and the lesion site and the relative positions of the two in real time and continuously outside the composite fiber bronchoscope, providing more accurate positioning and a wider observation angle for the diagnosis and treatment operation of the composite fiber bronchoscope, and significantly reducing the direct vision blind spot of the composite fiber bronchoscope.

[0103] Example 2: Multi-technique composite fiberoptic bronchoscopy for diagnosis and treatment of mediastinal masses

[0104] The mediastinum is located between the left and right thoracic cavities, with the sternum in front, the thoracic vertebrae in the back, the diaphragm below, and connected to the neck above. It contains the heart, superior / inferior vena cava, ascending aorta, descending aorta and other large blood vessels, as well as trachea, esophagus, thymus, lymph nodes and other tissues. Due to the anatomical characteristics of the large blood vessels contained in the mediastinum, pathological biopsy of mediastinal masses carries a greater risk of unplanned bleeding. Since the sternum in front of the mediastinum is not easy to incise, clinically, suprasternal approach or subxiphoid approach or thoracoscopy-assisted transthoracic mediastinoscopy biopsy is often selected, which carries the risks of large surgical trauma, difficulty in locating the mediastinal mass during surgery, and accidental injury to large blood vessels or their branches.

[0105] In recent years, with the clinical application of EBUS-TBNA assisted by fiberoptic bronchoscopy combined with ultrasound positioning technology, the trauma, bleeding risk and medical costs of mediastinal mass biopsy and treatment have been significantly reduced. EBUS-TBNA uses a fiberoptic bronchoscope to reach the tracheal surface of the mediastinal lesions through the main airway, and locates, punctures, biopsies or treats the mediastinal mass under the guidance of the ultrasound probe at the front end of the fiberoptic bronchoscope. Since various types and models of tracheal tubes need to enter the main airway through the glottis and stay above the carina for artificial ventilation, the tracheal tube and the main airway partially overlap (the overlapping part > 1 / 2 of the main airway length), making it impossible to perform biopsy and treatment of the upper and middle mediastinal mass with a multi-technique composite fiberoptic bronchoscope. Therefore, in clinical practice, only laryngeal mask airway management can be used to cooperate with the EBUS-TBNA operation, and there is no other airway management tool that can be used without affecting the surgical operation and ensuring artificial ventilation. The fatal disadvantage of using a laryngeal mask in EBUS-TBNA is that if unplanned bleeding occurs during the operation, there is no balloon in the main airway to block it. Therefore, no matter how much bleeding there is, the lungs will be affected, causing varying degrees of damage to respiratory function and lung inflammation. In severe cases, both lungs will be "flooded", endangering the patient's life. Long-term mechanical ventilation with a laryngeal mask significantly increases the incidence of complications such as reflux aspiration, postoperative nausea and vomiting.

[0106] The visualization airway management tool 100 designed and protected by the present invention utilizes two inflatable cuffs 13 and 15 on the ventilator, which can simultaneously block the main airway level on the carina 34 and the opening level of the left and right main bronchi 31 and 32. Once unplanned bleeding occurs during the EBUS-TBNA operation, the two inflatable cuffs on the ventilator are used for blocking, which can ensure that the ventilation function of both sides or at least one side of the lung is normal, thereby ensuring the life safety of the patient. In the design of the present invention, the length of the operating tube 2 is short and the position of the second opening 22 can be clinically adjusted so that it is located about 1-2 cm below the glottis 33, without affecting the biopsy and treatment operation of the mediastinal lesion by EBUS-TBNA. The ventilator is a thinner special-shaped tube (the cross section of the ventilator is crescent-shaped or semicircular), located on the pleural side, does not affect the EBUS-TBNA operation above the main airway, and can simultaneously maintain normal artificial ventilation of one lung or both lungs.

[0107] For EBUS-TBNA of the middle and upper mediastinum, the second inflatable cuff 15 at the proximal end of the ventilation tube is clinically adjusted to be close to the carina and filled, and the first inflatable cuff 13 at the distal end of the ventilation tube 1 is not filled and is in a contracted state, which can completely physically isolate the EBUS-TBNA operation site and the lungs. The lungs are still connected, ensuring that the ventilation function of the lungs is completely unaffected by the surgical operation and secretions, bleeding, etc. during the operation. The EBUS-TBNA operation and bilateral lung ventilation are completely independent and performed simultaneously without affecting each other.

[0108] For the EBUS-TBNA operation of the lower mediastinum, the distal first inflatable cuff 13 of the ventilation tube 1 is clinically adjusted to be at the level of the left / right main bronchial opening under the carina and filled, which can completely physically isolate the EBUS-TBNA operation site and one lung, ensuring that the ventilation function of one lung is completely unaffected by the surgical operation and secretions, bleeding, etc. during the operation. The visualization airway management tool 100 of the present invention not only ensures the coexistence of EBUS-TBNA operation and normal ventilation function, but also plays a great role in protecting the life safety of patients, greatly reducing the difficulty and risk of surgery, and playing a positive role in promoting and popularizing EBUS diagnosis and treatment operations.

[0109] Compared with the existing thoracoscopic minimally invasive surgery, the effect of multi-technique composite fiber bronchoscope diagnosis and treatment using the visualized airway management tool 100 designed in the present invention is very obvious.

[0110] At present, the main surgical methods for lung nodules, solitary small lung cancers and mediastinal mass biopsy are thoracoscopy-assisted or mediastinoscopy-assisted biopsy or resection. In comparison, multi-technique composite fiber bronchoscope diagnosis and treatment has the advantages of simpler operation, shorter operation time, less surgical trauma, lower medical costs, shorter hospitalization time and faster patient recovery (see Table 1). The visual airway management tool designed by the present invention significantly improves the safety of multi-technique composite fiber bronchoscope diagnosis and treatment operations, and fully guarantees the life safety of patients. Therefore, it has an important positive effect on the popularization and promotion of multi-technique composite fiber bronchoscope diagnosis and treatment operations, indirectly reducing patients' medical costs, shortening hospitalization time and accelerating patient recovery.

[0111] Table 1 Comparison of treatment options for lung nodules, solitary small lung cancers, and mediastinal mass biopsies

[0112] Multi-technique composite fiberoptic bronchoscopy diagnosis and treatment Minimally invasive thoracoscopic resection Surgery is invasive Small middle Surgical conditions Clean space Sterile laminar flow space Average operation time 30-60min 2-3 hours Average length of hospital stay 1-2 days 3-4 days Postoperative pain weak middle Postoperative ambulation time 1-2h 1 day Average medical expenses 20,000-30,000 50,000-60,000

[0113] It should be clear that the present invention is not limited to the above-mentioned embodiments. In the case of no conflict, the above-mentioned embodiments can be recombined to form new embodiments, all of which belong to the protection scope of the present invention. The present invention is not limited to the specific structures and processes described above and shown in the figures. For the sake of simplicity, a detailed description of the known methods is omitted here. In the above-mentioned embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0114] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

[0115] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A visual airway management tool for the diagnosis and treatment of airway, mediastinum and lung tissue, characterized in that: The visual airway management tool includes a ventilation tube and an operation tube arranged side by side, wherein: The ventilation tube is provided with a ventilation tube cavity extending in the length direction, and has a first opening at the distal end, the first opening extends across the tracheal carina, and a first inflatable cuff is provided near the first opening; The ventilation tube is also provided with a second inflatable cuff, and the second inflatable cuff is located above the tracheal carina; The ventilation tube is provided with an image sensor below the second inflatable cuff and near the tracheal carina, and the image sensor is used to capture images of its front end and its vicinity; The operation tube is provided with an operation lumen extending along the length direction, and has a second opening at the distal end, and the operation lumen serves as a passage for the multi-technique composite fiber bronchoscope and other surgical diagnostic and treatment instruments to penetrate; the operation tube is shorter than the ventilation tube, and the second opening of the operation tube is far away from the second inflatable cuff of the ventilation tube. After the visualization airway management tool is inserted into the airway, the second opening of the operation tube is 1-2 cm away from the glottis; The cross section of the operation lumen is circular; It also includes a first inflation lumen connected to the first inflatable cuff, and a second inflation lumen connected to the second inflatable cuff. The first inflation lumen and the second inflation lumen are respectively connected to an air source at the proximal end of the visualization airway management tool. The first inflatable cuff and the second inflatable balloon can be controlled to switch between a contracted state and an inflated state, respectively.

2. The visual airway management tool according to claim 1, characterized in that: The cross-sectional diameter of the operation lumen is 5-10 mm.

3. The visual airway management tool according to claim 1 or 2, characterized in that: The cross section of the ventilation lumen is crescent-shaped.

4. The visual airway management tool according to any one of claims 1-2, characterized in that: The cross-sectional area of ​​the operation lumen is larger than the cross-sectional area of ​​the ventilation lumen.

5. The visual airway management tool according to any one of claims 1-2, characterized in that: The overall cross-sectional diameter of the ventilation tube and the operation tube of the visualization airway management tool above the second opening does not exceed 14 mm.

6. The visual airway management tool according to claim 3, characterized in that: The cross section of the meniscus-shaped ventilation lumen includes a first arc segment facing the operation lumen, and the first arc segment matches the second arc segment of the cross section of the operation lumen.

7. The visual airway management tool according to claim 1, characterized in that: The first outer side wall of the ventilation tube from the second opening of the operation tube to the second inflatable cuff toward the operation tube is in an arc shape.

8. The visual airway management tool according to claim 1, characterized in that: From the upper end of the second inflatable cuff to the first opening position of the ventilation tube, the outer wall of the ventilation tube cross-section is circular.

9. The visual airway management tool according to claim 1, characterized in that: The distance between the lower edge of the second inflatable cuff and the upper edge of the first inflatable cuff is 2-3 cm.

10. The visual airway management tool according to claim 1, characterized in that: The first inflatable cuff and / or the second inflatable cuff are made of elastic material.

11. The visual airway management tool according to claim 1, characterized in that: The second inflatable cuff is an eccentric cuff. When the second inflatable cuff is in a filled state, it occupies 1 / 4 to 1 / 5 of the volume on one side of the ventilation tube and 3 / 4 to 4 / 5 of the volume on one side of the operation tube.

12. The visual airway management tool according to claim 1, characterized in that: The first inflatable cuff and / or the second inflatable cuff is a conical cuff.

13. The visual airway management tool according to claim 1, characterized in that: The outer wall of the visualization airway management tool is entirely coated with a hydrophilic lubricating coating.

14. The visual airway management tool according to claim 1, characterized in that: The ventilation pipe wall is provided with a reinforcement structure.

15. The visual airway management tool according to claim 14, characterized in that: The reinforcement structure is 1 to 5 steel wires.

16. The visual airway management tool according to claim 1, characterized in that: The entire vent pipe is made of a hard material, or the vent pipe from the second opening to the first opening is made of a hard material.

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