Trachea intubation device with self-cleaning function

Abstract

The invention discloses a tracheal intubation device with a self-cleaning function, and relates to the technical field of tracheal intubation, the tracheal intubation device comprises an intubation body, and one end of the intubation body is provided with a connector used for being connected with a breathing machine; the air bag body is fixedly mounted on the outer wall of the tail end of the cannula body; wherein the air bag body is curled into an ellipsoid shape through a sheet-shaped air bag, and a storage space is formed in the air bag body; the installation assembly is arranged on the outer wall of the tail end of the insertion pipe body. The arc-shaped plate rotates through the mounting assembly, so that secretions on the inner wall of the trachea are cleaned, the cleaning effect is achieved, and sputum scab formation is prevented; due to the unique structure of the air bag body, the arc-shaped plate rotates close to the outer wall of the air bag body and gradually enters the storage space, and then the air bag body is completely expanded, so that the outer wall of the air bag body is in contact with the inner wall of the trachea without secretions or with less secretions, the friction force is conveniently increased, the air bag body is prevented from sliding, and the occurrence of a tube falling event is prevented; the respiratory tract smoothness is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of endotracheal intubation, and in particular to an endotracheal intubation device with a self-cleaning function. Background Art

[0002] Tracheal intubation is a special tracheal tube used for endotracheal intubation surgery. It is inserted into the patient's trachea through the oral or nasal cavity. It is an important rescue technology for critically ill patients with cardiopulmonary resuscitation, surgical anesthesia and respiratory dysfunction. Tracheal intubation is a reliable means of respiratory support and maintaining airway patency. During tracheal intubation, sputum crusts often block the airway and the tube is removed. If it is not controlled and treated in time, it may cause acute hypoxia, suffocation, etc., endangering the patient's life safety. The present invention can clean the secretions on the inner wall of the trachea to achieve a cleaning effect and prevent the formation of sputum crusts; at the same time, the outer wall of the airbag body contacts the inner wall of the trachea with no secretions or less secretions, which is convenient for increasing friction, preventing the sliding of the airbag body, and preventing the tube from being removed. It is a reliable means to ensure the patency of the airway.

[0003] Endotracheal tubes have multiple functions and come in many types. Common tubes are marked with scales to indicate the depth of insertion, and come with one or two side tubes. One side tube is connected to the air bag at the end of the tube for inflation, and the other is a drug injection connection tube, or one side tube is used to connect to a negative pressure tube. When in use, a guide wire is inserted into the tube as an insertion bracket for the tube. After the trachea is inserted, the guide wire is removed, and the tube mouth is connected to the ventilator.

[0004] After searching, a Chinese patent with publication number CN 112618901 B mentions a tracheal intubation tube, comprising: an inner catheter tube body, the intervention end having a flat tube head, and the exposed end having a joint; a cuff, which is sleeved on the inner catheter tube body outside the intervention end; an inflation connecting tube, which is connected to the cuff and is used to inflate the cuff; a head cone, which is a cone, and the diameter of the bottom of the head cone is smaller than the inner diameter of the inner catheter tube body; a reed, which is a strip bow-shaped member, and at least three pieces are arranged around the head cone, and the reed extends from the bottom edge of the head cone and away from the cone top, and the center side of the reed is the centripetal side of the head cone; the extended end of the reed is locked to the end face of the flat tube head after its bow structure is opened; a push rod, which is connected to the tail of the head cone and passes through the inner cavity of the inner catheter tube body.

[0005] The insertion end of the above-mentioned tracheal cannula is provided with an air bag, and the inflated air bag can fix the insertion end of the tracheal cannula in the patient's trachea. However, due to the insertion of the tracheal cannula, some secretions will flow into the patient's trachea, and even sputum crust will be formed to block the airway; at the same time, the secretions will adhere to the outer peripheral surface of the air bag, thereby reducing the friction between the air bag and the inner wall of the patient's trachea, which is not conducive to the fixation of the air bag, causing the occurrence of tube detachment. If it is not controlled and handled in time, it may cause acute hypoxia, suffocation, etc., endangering the patient's life safety. For this reason, it is necessary to set up a tracheal cannula device with a self-cleaning function, which is convenient for cleaning the secretions attached to the inner wall of the patient's trachea, preventing sputum crust from blocking the airway and the occurrence of tube detachment. Summary of the invention

[0006] The purpose of the present invention is to provide a tracheal intubation device with a self-cleaning function to solve the problems raised in the above background technology.

[0007] To solve the above problems, the technical solutions adopted by the present invention are as follows:

[0008] A tracheal intubation device with a self-cleaning function, comprising

[0009] A cannula body, one end of which is provided with a connector for connecting to a ventilator;

[0010] An air bag body, the air bag body being fixedly mounted on the outer wall of the rear end of the cannula body;

[0011] The airbag body is formed into an ellipsoid shape by curling the sheet airbag, and a storage space is provided inside the sheet airbag;

[0012] A mounting assembly, the mounting assembly being disposed on an outer wall of a rear end of the cannula body;

[0013] An arc-shaped plate, which is rotatably mounted on the outer wall of the airbag body through a mounting assembly, rotates along the outer wall of the airbag body and gradually enters the storage space;

[0014] The first inflation component is arranged on the outer wall of the cannula body and is used to inflate the airbag.

[0015] Preferably, an eagle beak is provided at one end of the cannula body away from the connector.

[0016] Preferably, the tube wall of the hawk's beak is provided with a Murphy hole.

[0017] Preferably, the first inflation component includes a first inflation connecting tube, a first indicator airbag and a first one-way valve, one end of the first inflation connecting tube is connected to the outer wall of the airbag body, the first indicator airbag is arranged at the other end of the first inflation connecting tube, and the first one-way valve is arranged on the first indicator airbag.

[0018] Preferably, the mounting assembly includes a cavity ring, a rotating ring and a limiting outer ring, the cavity ring is fixedly mounted on the outer wall of the insert body, the rotating ring is rotatably arranged on the inner wall of the cavity ring groove, the inner wall of the cavity ring groove is provided with a limiting ring, the limiting outer ring is movably arranged inside the limiting ring, and the limiting outer ring is fixedly mounted on the outer wall of the rotating ring, the outer wall of the rotating ring is fixedly connected with a flexible deformation connecting rod, and one end of the flexible deformation connecting rod is fixedly connected to one end of the arc plate.

[0019] Preferably, the flexible deformable connecting rod is made of polyethylene material.

[0020] Preferably, the mounting assembly also includes a pneumatic rod and a sealing rod, the pneumatic rod is movably arranged on the inner wall of the cavity ring groove, and one end of the pneumatic rod is fixedly connected to the outer wall of the rotating ring, the sealing rod is fixedly arranged on the inner wall of the cavity ring groove, and one end of the sealing rod is in contact with the outer wall of the rotating ring but not fixedly connected.

[0021] Preferably, an air outlet hole is opened on the outer wall of the cavity ring, the air outlet hole is communicated with the inner cavity groove of the cavity ring, and is arranged on one side of the sealing rod.

[0022] Preferably, the outer wall of the arc-shaped plate is provided with a plurality of liquid storage holes.

[0023] Preferably, a second inflation connecting tube is also provided on the outer wall of the cannula body, one end of the second inflation connecting tube passes through the outer wall of the cavity ring and extends into the cavity groove inside the cavity ring, one end of the second inflation connecting tube is provided with a second indicator airbag, and the second indicator airbag is provided with a second one-way valve.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention arranges an arc plate on the outside of the airbag body. When the medical staff inserts the cannula body into the patient's trachea, at this time, it is necessary to further fix the position of the cannula body by expanding the airbag body, and further the staff inflates the airbag body so that the airbag body is in an incompletely expanded state. Under this action, the outer wall of the arc plate contacts the outer wall of the trachea, and the arc plate is further rotated by installing the assembly, so that the secretions on the inner wall of the trachea are cleaned to prevent the formation of sputum crust; and due to the unique structure of the airbag body, the arc plate rotates along the outer wall of the airbag body and gradually enters the storage space, and then the airbag body is fully expanded so that the outer wall of the airbag body contacts the inner wall of the trachea with no secretions or little secretions, which is convenient for increasing friction, preventing the airbag body from sliding, and preventing the occurrence of tube detachment, which is a reliable means to ensure a smooth respiratory tract.

[0026] The medical staff of the present invention uses the first inflation component to partially inflate the airbag body, and further uses the deformation effect of the flexible deformation connecting rod to make the outer wall of the arc plate fit the inner wall of the trachea. At this time, the medical staff connects the second one-way valve to the inflation device, and further inflates the interior of the cavity ring. The airflow drives the pneumatic rod to rotate, and the air outlet is exhausted, which further drives the rotating ring and the arc plate to rotate, thereby facilitating the self-cleaning of secretions on the inner wall of the trachea. The arc plate rotates along the outer wall of the airbag body and gradually enters the storage space. After entering, the medical staff fully inflates the airbag body and squeezes the inner wall of the trachea, which further facilitates the fixation of the cannula body, and the structural design is humanized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure is a schematic diagram of the overall external structure of an endotracheal intubation device with a self-cleaning function;

[0028] Figure 2 A schematic diagram of the structure of a tracheal intubation device with a self-cleaning function from a first perspective;

[0029] Figure 3 It is a partial structural schematic diagram of an endotracheal intubation device with a self-cleaning function;

[0030] Figure 4 A schematic diagram of the disassembled structure of the installation assembly of an endotracheal intubation device with a self-cleaning function;

[0031] Figure 5 A schematic diagram of the air bag structure of an endotracheal intubation device with a self-cleaning function;

[0032] Figure 6 A tracheal intubation device with self-cleaning function Figure 3 A partial enlarged view of point A in the middle.

[0033] In the figure: 1. cannula body; 2. connector; 3. olecranon; 4. Murphy hole; 5. airbag body; 6. arc plate; 7. storage space; 8. first inflation connecting tube; 9. first indicator airbag; 10. first one-way valve; 11. cavity ring; 12. rotating ring; 13. limiting outer ring; 14. flexible deformation connecting rod; 15. pneumatic rod; 16. sealing rod; 17. air outlet; 18. second inflation connecting tube; 19. second indicator airbag; 20. second one-way valve. DETAILED DESCRIPTION

[0034] 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.

[0035] Embodiment 1:

[0036] See also Figure 1 As shown, the present invention is a tracheal intubation device with a self-cleaning function, comprising an intubation body 1, wherein a connector 2 for connecting to a ventilator is installed at one end of the intubation body 1;

[0037] The airbag body 5 is fixedly mounted on the outer wall of the rear end of the cannula body 1;

[0038] The airbag body 5 is formed into an ellipsoid shape by curling the sheet airbag, and a storage space 7 is provided inside the airbag body;

[0039] An installation component, the installation component is arranged on the outer wall of the rear end of the cannula body 1;

[0040] The arc plate 6 is rotatably mounted on the outer wall of the airbag body 5 through a mounting assembly, and rotates along the outer wall of the airbag body 5 and gradually enters the storage space 7;

[0041] The first inflation component is arranged on the outer wall of the cannula body 1 and is used to inflate the airbag 5.

[0042] As can be seen from the above, by arranging an arc plate 6 on the outside of the airbag body 5, when the medical staff inserts the cannula body 1 into the patient's trachea, at this time, it is necessary to further fix the position of the cannula body 1 by expanding the airbag body 5, and further inflate the airbag body 5 so that the airbag body 5 is in an incompletely expanded state. Under this action, the outer wall of the arc plate 6 contacts the outer wall of the trachea, and the arc plate 6 is further rotated by installing the assembly, thereby cleaning the secretions on the inner wall of the trachea to prevent the formation of sputum crust, and due to the unique structure of the airbag body 5, the arc plate 6 rotates along the outer wall of the airbag body 5 and gradually enters the storage space 7, and then the airbag body 5 is fully inflated so that the outer wall of the airbag body 5 contacts the inner wall of the trachea with no secretions or little secretions, which is convenient for increasing the friction and preventing the airbag body 5 from sliding.

[0043] Embodiment 2:

[0044] A cannula body 1, one end of which is provided with a connector 2 for connecting to a ventilator;

[0045] The airbag body 5 is fixedly mounted on the outer wall of the rear end of the cannula body 1;

[0046] The airbag body 5 is formed into an ellipsoid shape by curling the sheet airbag, and a storage space 7 is provided inside the airbag body;

[0047] An installation component, the installation component is arranged on the outer wall of the rear end of the cannula body 1;

[0048] The arc plate 6 is rotatably mounted on the outer wall of the airbag body 5 through a mounting assembly, and rotates along the outer wall of the airbag body 5 and gradually enters the storage space 7;

[0049] The first inflation component is arranged on the outer wall of the cannula body 1 and is used to inflate the airbag 5.

[0050] Depend on Figure 2-Figure 3 It can be seen that the end of the cannula body 1 away from the connector 2 is provided with an olecranon 3 .

[0051] The tube wall of the hawk beak 3 is provided with a Murphy hole 4.

[0052] Specifically, the Murphy hole 4 is provided to play the following roles:

[0053] Prevent blockage: The existence of the Murphy hole 4 can ensure the patency of the airway if the main hole of the endotracheal tube is blocked by sputum or other substances during the intubation process. Gas can enter the trachea through the Murphy hole 4 to ensure ventilation of the patient;

[0054] Increase ventilation safety: During intubation, if the main channel is blocked, the Murphy hole 4 provides a backup airway to reduce the risk of hypoxia caused by blockage;

[0055] Improved ventilation efficiency: Murphy holes 4 help balance airflow, especially when high-flow ventilation is required, which can improve overall ventilation efficiency;

[0056] Adaptable design: In some cases, the Murphy hole 4 can provide better adaptability, helping the intubation to maintain effective ventilation under different airway conditions.

[0057] The first inflation component includes a first inflation connecting tube 8, a first indicator airbag 9 and a first one-way valve 10. One end of the first inflation connecting tube 8 is connected to the outer wall of the airbag body 5, the first indicator airbag 9 is arranged at the other end of the first inflation connecting tube 8, and the first one-way valve 10 is arranged on the first indicator airbag 9.

[0058] As can be seen from the above, by connecting the first one-way valve 10 with the inflation device, the airbag 5 can be adaptively inflated, and the airbag 5 can be further in an incompletely inflated state and a fully inflated state.

[0059] Embodiment three:

[0060] A cannula body 1, one end of which is provided with a connector 2 for connecting to a ventilator;

[0061] The airbag body 5 is fixedly mounted on the outer wall of the rear end of the cannula body 1;

[0062] The airbag body 5 is formed into an ellipsoid shape by curling the sheet airbag, and a storage space 7 is provided inside the airbag body;

[0063] An installation component, the installation component is arranged on the outer wall of the rear end of the cannula body 1;

[0064] The arc plate 6 is rotatably mounted on the outer wall of the airbag body 5 through a mounting assembly, and rotates along the outer wall of the airbag body 5 and gradually enters the storage space 7;

[0065] The first inflation component is arranged on the outer wall of the cannula body 1 and is used to inflate the airbag 5.

[0066] refer to Figure 2-Figure 6 As shown, the installation assembly includes a cavity ring 11, a rotating ring 12 and a limiting outer ring 13, the cavity ring 11 is fixedly installed on the outer wall of the cannula body 1, the rotating ring 12 is rotatably set on the inner wall of the cavity groove of the cavity ring 11, the inner wall of the cavity groove of the cavity ring 11 is provided with a limiting ring, the limiting outer ring 13 is movably set inside the limiting ring, and the limiting outer ring 13 is fixedly installed on the outer wall of the rotating ring 12, the outer wall of the rotating ring 12 is fixedly connected with a flexible deformation connecting rod 14, one end of the flexible deformation connecting rod 14 is fixedly connected to one end of the arc plate 6.

[0067] The flexible deformable connecting rod 14 is made of polyethylene material.

[0068] Specifically, the polyethylene material has good flexibility and tensile properties, and is easy to deform as the airbag 5 expands, thereby further changing the position of the arc plate 6 .

[0069] The mounting assembly also includes a pneumatic rod 15 and a sealing rod 16. The pneumatic rod 15 is movably arranged on the inner wall of the cavity groove of the cavity ring 11, and one end of the pneumatic rod 15 is fixedly connected to the outer wall of the rotating ring 12. The sealing rod 16 is fixedly arranged on the inner wall of the cavity groove of the cavity ring 11, and one end of the sealing rod 16 is in contact with the outer wall of the rotating ring 12 but not fixedly connected.

[0070] An air outlet hole 17 is formed on the outer wall of the cavity ring 11 . The air outlet hole 17 is communicated with the inner cavity groove of the cavity ring 11 and is arranged on one side of the sealing rod 16 .

[0071] The outer wall of the arc-shaped plate 6 is provided with a plurality of liquid storage holes, and liquid absorbing materials are arranged inside the liquid storage holes.

[0072] The liquid absorbing material may be a biocompatible polymer to absorb the secretions on the inner wall of the trachea. The arc plate 6 is made of a soft plate to avoid damage to the inner wall of the patient's trachea due to excessive hardness.

[0073] Specifically, by opening a plurality of liquid storage holes on the outer wall of the arc plate 6, when the arc plate 6 rotates, it is convenient to further collect the secretions on the inner wall of the trachea inside the liquid storage holes, and liquid absorbing materials are also provided inside the liquid storage holes to facilitate further absorption of the secretions.

[0074] The outer wall of the cannula body 1 is also provided with a second inflation connecting tube 18, one end of which passes through the outer wall of the cavity ring 11 and extends into the internal cavity of the cavity ring 11. A second indicator airbag 19 is provided at one end of the second inflation connecting tube 18, and a second one-way valve 20 is provided on the second indicator airbag 19.

[0075] As can be seen from the above, the medical staff uses the first inflation component to make the airbag body 5 not fully inflated, and further uses the deformation effect of the flexible deformation connecting rod 14 to make the outer wall of the arc plate 6 fit the inner wall of the trachea. At this time, the medical staff connects the second one-way valve 20 to the inflation device, and further inflates the cavity ring 11. The airflow drives the pneumatic rod 15 to rotate, and the air outlet 17 is exhausted, which further drives the rotating ring 12 and the arc plate 6 to rotate, and then facilitates the self-cleaning of the secretions on the inner wall of the trachea. The arc plate 6 rotates along the outer wall of the airbag body 5 and gradually enters the storage space 7. After entering, the medical staff makes the airbag body 5 fully inflated and squeezes the inner wall of the trachea, which is further convenient for fixing the cannula body 1, and the structural design is humanized.

[0076] The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0077] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0078] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0081] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0082] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tracheal intubation device with a self-cleaning function, characterized in that: include A cannula body (1), one end of the cannula body (1) being provided with a connector (2) for connecting to a ventilator; An air bag body (5), wherein the air bag body (5) is fixedly mounted on the outer wall of the rear end of the cannula body (1); The airbag body (5) is formed into an ellipsoid shape by curling the sheet-like airbag, and a storage space (7) is provided inside the airbag body; A mounting assembly, the mounting assembly being arranged on the outer wall of the rear end of the cannula body (1); An arc-shaped plate (6), wherein the arc-shaped plate (6) is rotatably mounted on the outer wall of the airbag body (5) through a mounting assembly, and rotates along the outer wall of the airbag body (5) and gradually enters the storage space (7); A first inflation component, which is arranged on the outer wall of the cannula body (1) and is used to inflate the airbag body (5).

2. The endotracheal intubation device with self-cleaning function according to claim 1, characterized in that: An eagle's beak (3) is provided at one end of the cannula body (1) away from the connector (2).

3. The endotracheal intubation device with self-cleaning function according to claim 2, characterized in that: The tube wall of the beak portion (3) is provided with a Murphy hole (4).

4. The endotracheal intubation device with self-cleaning function according to claim 1, characterized in that: The first inflation component comprises a first inflation connection tube (8), a first indicator airbag (9) and a first one-way valve (10); one end of the first inflation connection tube (8) is connected to the outer wall of the airbag body (5); the first indicator airbag (9) is arranged at the other end of the first inflation connection tube (8); and the first one-way valve (10) is arranged on the first indicator airbag (9).

5. The endotracheal intubation device with self-cleaning function according to claim 1, characterized in that: The mounting assembly comprises a cavity ring (11), a rotating ring (12) and a limiting outer ring (13); the cavity ring (11) is fixedly mounted on the outer wall of the cannula body (1); the rotating ring (12) is rotatably arranged on the inner wall of the cavity groove of the cavity ring (11); a limiting ring is provided on the inner wall of the cavity groove of the cavity ring (11); the limiting outer ring (13) is movably arranged inside the limiting ring, and the limiting outer ring (13) is fixedly mounted on the outer wall of the rotating ring (12); the outer wall of the rotating ring (12) is fixedly connected with a flexible deformation connecting rod (14); one end of the flexible deformation connecting rod (14) is fixedly connected to one end of the arc plate (6).

6. The endotracheal intubation device with self-cleaning function according to claim 5, characterized in that: The flexible deformable connecting rod (14) is made of polyethylene material.

7. The endotracheal intubation device with self-cleaning function according to claim 5, characterized in that: The mounting assembly further comprises a pneumatic rod (15) and a sealing rod (16); the pneumatic rod (15) is movably arranged on the inner wall of the cavity groove of the cavity ring (11), and one end of the pneumatic rod (15) is fixedly connected to the outer wall of the rotating ring (12); the sealing rod (16) is fixedly arranged on the inner wall of the cavity groove of the cavity ring (11), and one end of the sealing rod (16) is in contact with the outer wall of the rotating ring (12) but is not fixedly connected.

8. The endotracheal intubation device with self-cleaning function according to claim 7, characterized in that: An air outlet hole (17) is provided on the outer wall of the cavity ring (11), the air outlet hole (17) is communicated with the inner cavity groove of the cavity ring (11), and is arranged on one side of the sealing rod (16).

9. The endotracheal intubation device with self-cleaning function according to claim 1, characterized in that: The outer wall of the arc-shaped plate (6) is provided with a plurality of liquid storage holes.

10. The endotracheal intubation device with self-cleaning function according to claim 8, characterized in that: The outer wall of the cannula body (1) is also provided with a second inflation connecting tube (18), one end of which passes through the outer wall of the cavity ring (11) and extends into the cavity groove inside the cavity ring (11), and one end of the second inflation connecting tube (18) is provided with a second indicator airbag (19), and the second indicator airbag (19) is provided with a second one-way valve (20).

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