Multifunctional double-cavity special-shaped tracheal catheter

Abstract

The utility model belongs to the technical field of medical devices, and discloses a multifunctional double-cavity special-shaped tracheal catheter which comprises a main tube and a plugging tube, the main tube and the plugging tube are arranged in parallel and connected into a whole, the front end of the plugging tube protrudes out of the front end of the main tube and is fixedly sleeved with an elastic sleeve bag I, and the front end of the main tube is fixedly sleeved with an elastic sleeve bag II. A monitoring mechanism is arranged on the side, close to the plugging tube, of the front end of the main tube, the rear end of the plugging tube is sleeved with a sealing cap, and the bending control sheath tube is matched with the plugging tube; the multifunctional double-cavity special-shaped tracheal catheter is more comprehensive in function, easy to operate, time-saving, free of tube replacement, small in stimulation, more stable in hemodynamics, more convenient to use, more suitable for operation requirements, stable in plugging, not prone to slipping of the cuff, good in lung collapse of the plugging device, capable of providing a better operation view field and easy in sputum suction. The special-shaped catheter is thinner than a double-lumen bronchial catheter, the patient adaptability is good, and the plugging tube can be conveniently guided to enter the operation side lung.

Description

Technical Field

[0001] This utility model relates to a multifunctional dual-lumen irregular endotracheal tube, belonging to the field of medical device technology. Background Technology

[0002] Currently in clinical practice, lung isolation and ventilation during lung surgery often employ double-lumen endotracheal intubation or single-lumen endotracheal occluders (single-lumen endotracheal tube + occluder). However, double-lumen endotracheal tubes are thick, causing significant irritation to the patient during intubation, resulting in large hemodynamic fluctuations, high intubation difficulty, and difficulty in placement. Furthermore, they require replacement with single-lumen endotracheal tubes after thoracic surgery, making the procedure complex and cumbersome. While single-lumen endotracheal occluders are less irritating and can be removed postoperatively without replacing the endotracheal tube, making them convenient, they have the following drawbacks: 1. The occluder's position is not fixed and it is prone to slippage. If the cuff enters the main airway, it can easily cause hypoxemia, asphyxiation, or even death in the patient; 2. The occluder results in poor lung collapse (lung collapse in thoracic surgery can provide a better surgical field), making suctioning difficult. Therefore, a multifunctional double-lumen atypical endotracheal tube is now available that is less irritating to the patient, reduces intubation difficulty, has a fixed occlusion position, is less prone to slippage, provides better lung collapse, and facilitates suctioning. Utility Model Content

[0003] The purpose of this invention is to provide a multifunctional double-lumen irregular endotracheal tube to solve the problems of existing double-lumen endotracheal tubes, such as being too thick, causing great irritation to patients during insertion, large hemodynamic fluctuations, high difficulty in insertion, and difficulty in placement; and single-lumen endotracheal occluders, such as being difficult to fix in place, easy to slip out, poor lung collapse, and difficulty in suctioning.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a multifunctional double-lumen irregular endotracheal tube, comprising a main tube and a sealing tube, wherein the main tube and the sealing tube are arranged side by side and connected as one unit, the front end of the sealing tube protrudes beyond the front end of the main tube and is fixedly sleeved with an elastic cuff I, and a ventilation tube I is fixedly connected to the side of the elastic cuff I away from the front end of the sealing tube, the ventilation tube I being embedded in the wall of the sealing tube or the main tube, or fixedly connected to the outer wall of the sealing tube or the main tube, the end of the ventilation tube I away from the elastic cuff I extending to the outside of the rear end of the main tube and fixedly connected with a quick connector I, and an elastic cuff II ringing around the outer wall of the main tube and the sealing tube being fixedly sleeved at the front end of the main tube, the inner wall of the elastic cuff II being connected to the outer wall of the main tube and the sealing tube. The outer walls of the main pipe and the sealing tube are seamlessly fixedly connected. The side of the elastic cuff II away from the front end of the main pipe is fixedly connected to the ventilation tube II. The ventilation tube II is embedded in the wall of the main pipe or fixedly connected to the outer wall of the main pipe. The end of the ventilation tube II away from the elastic cuff II extends to the outside of the rear end of the main pipe and is fixedly connected to the quick connector II. The rear end of the main pipe is fixedly connected to the quick connector III. The rear end of the sealing tube is fixedly connected to the quick connector IV. A monitoring mechanism is provided on the front end of the main pipe near the sealing tube. A signal line embedded in the wall of the main pipe or fixedly connected to the outer wall of the main pipe is connected to the monitoring mechanism. The end of the signal line away from the monitoring mechanism extends to the outside of the rear end of the main pipe and is connected to the quick connector V.

[0005] Preferably, the front end of the main pipe has a wedge-shaped structure, and the sealing tube is fixedly connected to the outer or inner wall of the main pipe, or axially penetrates the pipe wall of the main pipe and is seamlessly fixedly connected to the pipe wall of the main pipe. The cross-section of the sealing tube is circular, rectangular, elliptical, crescent-shaped, willow leaf-shaped, bow-shaped, olive-shaped, or spindle-shaped. The part of the sealing tube protruding from the front end of the main pipe is a round or elliptical tube. The angle between the axis of the front end of the sealing tube and the axis of the main pipe is 20-40°. The elastic sleeve II is eccentrically fitted onto the outer wall of the main pipe and the sealing tube, and the center of the elastic sleeve II is close to the axis of the sealing tube, or symmetrically fitted onto the outer wall of the main pipe and the sealing tube.

[0006] Preferably, the angle between the end face of the wedge-shaped structure at the front end of the main pipe and the axis of the main pipe is 30-60 degrees, and the angle between the inclined surface at the front end of the elastic sleeve I and the axis of the sealing tube is 30-60 degrees.

[0007] Preferably, the elastic sheath I and elastic sheath II are silicone balloons, elastic polyurethane balloons, or elastic PVC balloons, and the quick connectors I, II, III, IV, and V are one of the following: tower connectors, threaded connectors, straight-insertion connectors, snap-fit ​​connectors, and twist-lock connectors, with a sealing cap fitted on the quick connector IV.

[0008] Preferably, the monitoring mechanism includes one or more of the following: a temperature sensor, a pressure sensor, a cold light source for illumination, and a high-definition camera.

[0009] Preferably, the front end of the outer wall of the main pipe is blunted, the front end of the outer wall of the sealing tube is blunted or has a bird's beak-shaped structure, and the inner and outer walls of the main pipe and the sealing tube are smooth surfaces.

[0010] Preferably, the inner and outer walls of the main pipe and the sealing pipe are provided with a self-lubricating coating.

[0011] Preferably, the main tube, the sealing tube, the ventilation tube I, and the ventilation tube II are one of medical silicone tubes, medical PVC tubes, medical polyurethane tubes, and medical polyethylene tubes.

[0012] Preferably, the walls of the main pipe and the sealing pipe are embedded with a metal support mesh, a metal support ring, and a spiral metal support wire.

[0013] Preferably, it also includes a bend-controlling sheath, which is adapted to the sealing tube, with the front end of the bend-controlling sheath being a bend-controlling part and the rear end being a control handle.

[0014] Beneficial effects

[0015] 1. The multifunctional double-lumen irregular endotracheal tube of this utility model has more comprehensive functions, is simple to operate, saves time, does not require tube replacement, is less irritating, has more stable hemodynamics, is more convenient to use, is more suitable for surgical needs, has stable occlusion, the cuff is not easy to slip off, the occluder has good lung collapse, can provide a better surgical field, and is easy to suction sputum.

[0016] 2. This non-invasive catheter is thinner than the double-lumen bronchial catheter, making it more adaptable to patients. It is equipped with a bend-controlled sheath, which facilitates guiding the occlusion tube into the lung on the side of the operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the elastic sheath I in this utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0020] Figure 4 This is a schematic diagram showing the position of the main pipe and the sealing pipe in the elastic sleeve II in this utility model;

[0021] Figure 5 This is a side-section diagram of the sealing tube front end mechanism in this utility model;

[0022] Figure 6This is a schematic diagram showing the connection state of the sealing tube and the elastic sleeve I in Embodiment 2 of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of Embodiment 3 of this utility model.

[0024] In the diagram: 1. Main tube; 2. Sealing tube; 3. Elastic cuff I; 4. Ventilation tube I; 5. Quick connector I; 6. Elastic cuff II; 7. Ventilation tube II; 8. Quick connector II; 9. Quick connector III; 10. Elastic rubber connector; 11. Plug; 12. Monitoring mechanism; 13. Signal line; 14. Quick connector V; 15. Quick connector IV; 16. Sealing cap; 17. Bending control sheath; 18. Bending control section; 19. Control handle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this utility model provides a technical solution: a multifunctional double-lumen irregular endotracheal tube, including a main tube 1 and a sealing tube 2, which are arranged side by side and connected as one unit. The front end of the sealing tube 2 protrudes beyond the front end of the main tube 1 and is fixedly sleeved with an elastic cuff I3, which facilitates the fixation of the front end of the sealing tube 2 and is used to seal the main bronchus of the lung requiring isolation on the surgical side. The front end of the elastic cuff I3 is a backward-sloping surface, and the angle between the slope of the front end of the elastic cuff I3 and the axis of the sealing tube 2 is 30-60 degrees. A ventilation tube I4 is fixedly connected to the side of the elastic cuff I3 away from the front end of the sealing tube 2. The ventilation tube I4 is embedded in the wall of the sealing tube 2 or the main tube 1, or fixedly connected to... The ventilation tube I4, attached to the outer wall of the occlusion tube 2 or the main tube 1, extends from the end of the elastic cuff I3 to the outside of the rear end of the main tube 1 and is fixedly connected to a quick connector I5, facilitating the inflation / deflation of the elastic cuff I3 or the inflation / deflation of saline solution. An elastic cuff II6, ring-shaped around the outer walls of the main tube 1 and the occlusion tube 2, is fixedly fitted to the front end of the main tube 1, facilitating the fixation of the front end of the main tube 1 and its use in occluding the trachea. The front end of the main tube 1 has a wedge-shaped structure, with the angle between the end face of the wedge-shaped structure and the axis of the main tube 1 being 30-60 degrees. The inner wall of the elastic cuff II6 is seamlessly fixed to the outer walls of the main tube 1 and the occlusion tube 2. A ventilation tube II6 is fixedly connected to the side of the elastic cuff II6 away from the front end of the main tube 1. The endotracheal tube II 7 is embedded within the wall of the main tube 1 or fixedly connected to the outer wall of the main tube 1. The end of the endotracheal tube II 7 furthest from the elastic cuff II 6 extends to the outside of the rear end of the main tube 1 and is fixedly connected to a quick connector II 8 for easy inflation / deflation or saline inflation / deflation of the elastic cuff II 6. The elastic cuffs I 3 and II 6 are silicone, polyurethane, or PVC balloons. A quick connector III 9 is fixedly connected to the rear end of the main tube 1 for easy connection to the endotracheal tube. An elastic rubber connecting piece 10 is fixedly connected to the rear end of the sealing tube 2. A plug 11 for sealing the rear end of the sealing tube 2 is fixedly connected to the end of the elastic rubber connecting piece furthest from the sealing tube 2. A monitoring mechanism 12 is provided on the front end of the main pipe 1 near the sealing pipe 2. The monitoring mechanism 12 includes one or more of the following: a temperature sensor, a pressure sensor, a cold light source for illumination, and a high-definition camera, to facilitate monitoring of the patient's physical condition. A signal line 13 is connected to the monitoring mechanism 12, which is embedded in the wall of the main pipe 1 or fixedly connected to the outer wall of the main pipe 1. The end of the signal line 13 away from the monitoring mechanism 12 extends to the outside of the rear end of the main pipe 1 and is connected to a quick connector V 14. Quick connector I 5, quick connector II 8, quick connector III 9, quick connector IV 15 and quick connector V 14 are one of the following: a tower connector, a threaded connector, a straight-insertion connector, a snap-fit ​​connector, and a twist-lock connector.

[0028] Specifically, the sealing tube 2 is fixedly connected to the outer or inner wall of the main tube 1. The cross-section of the sealing tube 2 is circular, rectangular, elliptical, crescent-shaped, bow-shaped, willow-leaf-shaped, olive-shaped, or spindle-shaped. The part of the sealing tube 2 that protrudes from the front end of the main tube 1 is a round or elliptical tube. The angle between the axis of the front end of the sealing tube 2 and the axis of the main tube 1 is 20-40°. In this embodiment, the front end of the sealing tube 2 is bent 20-40° away from the axis of the main tube 1. The front end of the elastic cuff I 3 is a backward inclined surface. The elastic cuff II 6 is eccentrically fitted on the outer wall of the main tube (1) and the sealing tube (2), and the center of the elastic cuff II 6 is close to the axis of the sealing tube 2. That is, the distance from the far point of the inner wall of the elastic cuff II 6 on the side close to the sealing tube 2 to the outer wall of the sealing tube 2 is greater than the distance from the far point of the inner wall of the elastic cuff II 6 on the side close to the main tube 1 to the outer wall of the main tube 1, so that the distance between the sealing tube 2 and the tracheal wall is greater than the distance between the main tube 1 and the tracheal wall.

[0029] Specifically, the front end of the outer wall of the main pipe 1 is passivated, and the front end of the outer wall of the sealing pipe 2 is passivated or has a bird's beak-shaped structure. The inner and outer walls of the main pipe 1 and the sealing pipe 2 are smooth surfaces. The inner and outer walls of the main pipe 1 and the sealing pipe 2 are provided with a self-lubricating coating. In this embodiment, the self-lubricating coating is a talc lubricating coating or a Teflon lubricating coating, which helps to reduce irritation to the trachea and protect the trachea.

[0030] Specifically, the main pipe 1, the sealing pipe 2, the ventilation tube I 4, and the ventilation tube II 7 are one of the following: medical silicone tube, medical PVC tube, medical polyurethane tube, and medical polyethylene tube. The main pipe 1 and the sealing pipe 2 have metal support mesh, metal support ring, and spiral metal support wire embedded in their tube walls.

[0031] The working process of this utility model is as follows: After routine anesthesia induction, the endotracheal intubation guide is placed in the main tube 1. The rear end of the occlusion tube 2 is sealed with the plug 11. After the endotracheal tube enters the main airway, it is connected to the anesthesia machine or ventilator tubing. Then, under the visual conditions achieved by the monitoring device 12, the front end of the occlusion tube 2 is close to the patient's carina (also known as the tracheal carina). (oftrachea) Rotate the endotracheal tube according to the desired position of the operated lung, aligning the tip of the occlusion tube 2 with the bronchus of the operated lung. Continue moving the endotracheal tube until the tip of the main tube 1 approaches the patient's carina. The elastic cuff I3 on ​​the occlusion tube 2 should be fully inserted into the operated lung, indicating good positioning. Inflate the elastic cuff II6 at the tip of the main tube 1 and the elastic cuff I3 on ​​the occlusion tube 2 to seal the trachea and the main bronchus of the operated lung, thus isolating the operated lung. The operated lung is not connected to the ventilator or the patient's external environment. The non-operated lung is ventilated through the main tube 1. If lung collapse is required during the operation, remove the plug 11 at the rear end of the occlusion tube 2. The operated lung can then communicate with the outside and expel air through the occlusion tube 2, allowing for lung collapse and providing a good surgical field. If there is excessive secretion or blood on the operated side, the rear end of the occlusion tube 2 can be... Connect the suction device to aspirate secretions, etc.; if lung expansion is required after the operation, use the plug 11 to seal the rear end of the occlusion tube 2, and then deflate the elastic cuff I3 on ​​the occlusion tube 2 to connect the left and right lungs and achieve bilateral lung ventilation; after the operation, deflate the elastic cuff II6 at the front end of the main tube 1 and the elastic cuff I3 on ​​the occlusion tube 2, withdraw the endotracheal tube into the main airway, and then inflate the elastic cuff II6 at the front end of the main tube 1 to maintain patient ventilation; this utility model of multifunctional double-lumen endotracheal tube has more comprehensive functions, is simple to operate, saves time, does not require tube replacement, is less irritating, has more stable hemodynamics, is more convenient to use, is more suitable for surgical needs, has stable occlusion, the cuff is not easy to slip off, the occluder causes good lung collapse, can provide a better surgical field, and is easy to suction sputum; this endotracheal tube is thinner than the double-lumen bronchial tube, and has better patient adaptability.

[0032] Example 2:

[0033] like Figure 6 As shown, this utility model provides a technical solution: a multifunctional double-lumen irregular endotracheal tube, including a main tube 1 and a sealing tube 2. The main tube 1 and the sealing tube 2 are arranged side by side and connected as one unit. The front end of the sealing tube 2 protrudes from the front end of the main tube 1 and is fixedly sleeved with an elastic cuff I3. The plane where the elastic cuff I3 is located forms an angle of 20-60° with the axis of the front end of the sealing tube 2, which facilitates fixing the front end of the sealing tube 2 and is used to seal the main bronchus of the lung on the side that needs to be isolated. Other structures are the same as in Embodiment 1.

[0034] Example 3:

[0035] like Figure 7As shown, this utility model provides a technical solution: a multifunctional double-lumen irregular endotracheal tube, including a main tube 1 and a sealing tube 2, which are arranged side by side and connected as one unit. The front end of the sealing tube 2 protrudes beyond the front end of the main tube 1 and is fixedly sleeved with an elastic cuff I 3, which facilitates the fixation of the front end of the sealing tube 2 and is used to seal the main bronchus of the lung on the side requiring isolation. The elastic cuff II 6 is symmetrically sleeved on the outer walls of the main tube 1 and the sealing tube 2, that is, the center of the elastic cuff II 6 is located on the midline of the main tube 1 and the sealing tube 2. The distance from the farthest point of the inner wall of the elastic cuff II 6 on the side closer to the sealing tube 2 to the outer wall of the sealing tube 2 is equal to the distance from the farthest point of the inner wall of the elastic cuff II 6 on the side closer to the main tube 1 to the outer wall of the main tube 1, that is, the distance between the sealing tube 2 and the tracheal wall is equal to the distance between the main tube 1 and the tracheal wall. The rear end of the sealing tube 2 is fixedly connected to a quick connector IV 15, and a sealing cap 16 is sleeved on the quick connector IV 15. The multifunctional double-lumen irregular endotracheal tube also includes a control The curved sheath 17 facilitates the control of the bending of the front end of the occlusion tube 2, and facilitates the guidance of the occlusion tube 2 into the operated lung. The curved sheath 17 is adapted to the occlusion tube 2. The front end of the curved sheath 17 is the bending control part 18, and the rear end is the control handle 19. The curved sheath 17 is a mature existing technology, and its specific structure will not be described in detail here. The structure of the curved sheath 17 in this embodiment is consistent with the structure of a controllable bending sheath disclosed in CN202320173447.3. In use, after routine anesthesia induction, the endotracheal intubation guide is placed in the main tube 1. After the endotracheal tube enters the main airway, it is connected to the anesthesia machine or ventilator threaded tube. Then, the sealing cap 16 at the rear end of the occlusion tube 2 is removed, and the curved sheath 17 is inserted into the occlusion tube 2. Under visual operation, the front end of the occlusion tube 2 is controlled by the bending control part 18 at the front end of the curved sheath 17 to bend, and selectively enters the operated lung (left or right lung) as needed. Other structures are the same as in Embodiment 1 or 2.

Claims

1. A multi-functional dual-lumen profiled tracheal tube comprising a main tube (1) and a plug tube (2), characterized in that: The main pipe (1) and the sealing pipe (2) are arranged side by side and connected as one unit. The front end of the sealing pipe (2) protrudes from the front end of the main pipe (1) and is fixedly fitted with an elastic sleeve I (3). The side of the elastic sleeve I (3) away from the front end of the sealing pipe (2) is fixedly connected to a ventilation conduit I (4). The ventilation conduit I (4) is embedded in the wall of the sealing pipe (2) or the main pipe (1), or fixedly connected to the outer wall of the sealing pipe (2) or the main pipe (1). (4) One end away from the elastic cuff I (3) extends to the outside of the rear end of the main pipe (1) and is fixedly connected to a quick connector I (5). The front end of the main pipe (1) is fixedly fitted with an elastic cuff II (6) that is looped around the outer wall of the main pipe (1) and the sealing tube (2). The inner side wall of the elastic cuff II (6) is seamlessly fixedly connected to the outer wall of the main pipe (1) and the sealing tube (2). The side of the elastic cuff II (6) away from the front end of the main pipe (1) is fixedly connected to a ventilation tube II (7). The ventilation conduit II (7) is embedded in the wall of the main tube (1) or fixedly connected to the outer wall of the main tube (1). The end of the ventilation conduit II (7) away from the elastic cuff II (6) extends to the outside of the rear end of the main tube (1) and is fixedly connected to a quick connector II (8). The rear end of the main tube (1) is fixedly connected to a quick connector III (9). The rear end of the sealing tube (2) is fixedly connected to an elastic rubber connecting piece (10). The elastic rubber connecting piece is located away from the sealing tube (2). One end of the main pipe (1) is fixedly connected to a plug (11) for sealing the rear end of the sealing pipe (2). A monitoring mechanism (12) is provided on the front end of the main pipe (1) near the sealing pipe (2). A signal line (13) is connected to the monitoring mechanism (12) and is embedded in the pipe wall of the main pipe (1) or fixedly connected to the outer wall of the main pipe (1). The end of the signal line (13) away from the monitoring mechanism (12) extends to the outside of the rear end of the main pipe (1) and is connected to a quick connector (14).

2. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: The front end of the main pipe (1) is a wedge-shaped structure. The sealing tube (2) is fixedly connected to the outer or inner wall of the main pipe (1), or axially penetrates the pipe wall of the main pipe (1) and is seamlessly fixedly connected to the pipe wall of the main pipe (1). The cross-section of the sealing tube (2) is circular, rectangular, elliptical, crescent-shaped, willow leaf-shaped, bow-shaped, olive-shaped or spindle-shaped. The part of the sealing tube (2) protruding from the front end of the main pipe (1) is a round or elliptical tube. The angle between the axis of the front end of the sealing tube (2) and the axis of the main pipe (1) is 20-40°. The front end of the elastic sleeve I (3) is a backward inclined surface. The elastic sleeve II (6) is eccentrically sleeved on the outer wall of the main pipe (1) and the sealing tube (2) and the center of the elastic sleeve II (6) is close to the axis of the sealing tube (2), or symmetrically sleeved on the outer wall of the main pipe (1) and the sealing tube (2).

3. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: The angle between the end face of the wedge-shaped structure at the front end of the main tube (1) and the axis of the main tube (1) is 30-60 degrees, and the angle between the inclined surface at the front end of the elastic sleeve I (3) and the axis of the sealing tube (2) is 30-60 degrees.

4. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: The main tube (1), the occlusion tube (2), the ventilation catheter I (4), the ventilation catheter II (7) are one of medical silica gel tube, medical PVC tube, medical polyurethane tube, medical polyethylene tube, the elastic sleeve I (3), the elastic sleeve II (6) are silica gel balloon, elastic polyurethane balloon or elastic PVC balloon, the quick connector I (5), the quick connector II (8), the quick connector III (9), the quick connector IV (15) and the quick connector V (14) are one of tower-shaped joint, threaded joint, straight insertion type joint, buckle type joint, screw buckle type joint, the quick connector IV (15) is sleeved with a closure cap (16).

5. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: The monitoring mechanism (12) comprises one or more than two combinations of temperature sensor, pressure sensor, illumination cold light source and high-definition camera.

6. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: The front end of the outer wall of the main tube (1) is passivated, the front end of the outer wall of the occlusion tube (2) is passivated or is a bird beak structure, the inner and outer walls of the main tube (1) and the occlusion tube (2) are smooth surfaces.

7. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: The inner and outer walls of the main tube (1) and the occlusion tube (2) are provided with self-lubricating coating.

8. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: The elastic sleeve I (3) and the front end of the occlusion tube (2) form an included angle of 20-60°.

9. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: The inner and outer walls of the main tube (1) and the occlusion tube (2) are embedded with metal support net, metal support ring and spiral metal support wire.

10. The multi-functional dual-lumen shaped tracheal tube according to claim 1, wherein: It also includes a bending control sheath (17) which is matched with the occlusion tube (2), the front end of the bending control sheath is a bending control part (18), and the rear end is a control handle (19).

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