Anti-falling fixing device for tracheal catheter

Abstract

The invention discloses an anti-falling fixing device for a tracheal catheter, which comprises a baffle plate module, the baffle plate module comprises a baffle plate and a wearable fixing piece, the baffle plate is provided with a tube penetrating hole, and one side of the tube penetrating hole is communicated with a transverse avoiding through groove; the tooth cushion module comprises two tooth cushion plates which are oppositely arranged up and down; the fixing module comprises pressing plates, a manual driving part, air bags, air pipes and control valves, the manual driving part is connected with the two pressing plates so as to manually drive the two pressing plates to move up and down oppositely or oppositely, the surfaces, close to each other, of the two pressing plates are each provided with a layer of inflatable air bag, and each pressing plate is provided with one air pipe and one control valve; and the control valve is arranged on the air pipe to control the on-off of the air pipe. The device is reasonable in overall structural design, all the modules are matched with one another, the three functions of oral occlusion supporting, tracheal catheter fixing and oral secretion management are integrated, stable fixing of the tracheal catheter is facilitated, and later nursing is also facilitated.

Description

Technical Field

[0001] The present invention relates to the field of tracheal catheter fixation, and in particular to an anti-displacement fixation device for tracheal catheters. Background Art

[0002] In medical practice, tracheal intubation is a common first-aid and treatment method, which is widely used in clinical scenarios such as intensive care, surgical anesthesia, and respiratory failure. In actual clinical operations, generally, a tracheal catheter is first inserted. After the successful insertion of the tracheal catheter, a ventilator is connected, and finally, the tracheal catheter is fixed.

[0003] The stable fixation of the tracheal catheter is crucial for ensuring the patency of the patient's respiration and preventing the catheter from shifting or slipping out. Traditional fixation methods are generally tape fixation and strap fixation. The tape fixation method usually uses medical tape to fix the tracheal catheter on the patient's face or neck, and the strap fixation method is to use a strap to fix the tracheal catheter on the patient's head or neck. Both of these methods will cause a sense of compression to the patient, resulting in discomfort. Moreover, it is rather troublesome to adjust the tightness of the tracheal catheter after fixation.

[0004] Based on this, related technologies have been improved. For example, patents such as CN202211363347.3 have provided new fixation structures. However, the characteristic of such solutions is that the structure for fixing the tracheal catheter is a closed-loop structure, which leads to the need for this type of device to be pre-sleeved on the tracheal catheter, and then the tracheal catheter is inserted and subsequently fixed. Otherwise, after the tracheal catheter is inserted into the patient's body and the ventilator is connected, this type of device cannot be sleeved on the tracheal catheter anymore, and the use process is rather troublesome and will affect the normal insertion of the tracheal catheter. In addition, during the use of the tracheal catheter, due to the irritation of the tracheal catheter to the respiratory tract, sputum will inevitably be generated in the patient's throat, so it is often necessary to clean the sputum in a timely manner.

[0005] In view of the limitations of the existing fixation methods, there is an urgent need for a new type of tracheal catheter fixation device in clinical practice, which can meet the following requirements: 1. Firm fixation: It can effectively prevent the tracheal catheter from shifting or slipping out and ensure the patency of the patient's respiration. 2. Simple operation: The fixation and adjustment operations are simple and fast, saving the time and energy of medical staff. 3. High comfort: Reducing the sense of compression and discomfort to the patient and improving the patient's comfort. 4. Oral secretion management: It can effectively manage oral secretions and reduce the risk of infection. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present invention is to provide an anti-displacement fixation device for tracheal catheters.

[0007] The technical solution of the present invention is as follows: An anti-displacement fixation device for tracheal catheters, characterized in that it includes:

[0008] A baffle module, the baffle module includes a baffle and a wearing fixing member, a through hole is provided at the center of the baffle and penetrates the baffle in the front-rear direction, and transverse avoidance through grooves are respectively provided at the left and right ends of the baffle, and one of the avoidance through grooves is communicated with the through hole. A wearing fixing member is provided on the baffle, and the wearing fixing member is used to fix the baffle on the human mouth.

[0009] A dental pad module, the dental pad module includes two dental pads arranged one above the other, the dental pads are arranged behind the baffle and the through hole is located between the two dental pads, and the dental pads are detachably connected to the baffle.

[0010] A fixing module, the fixing module includes a pressing plate, a manual driving member, an airbag, an air pipe and a control valve. There are two pressing plates arranged one above the other, the pressing plates are arranged in front of the baffle and the through hole is located between the two pressing plates. A manual driving member is further provided on the front side of the baffle, and the manual driving member is connected to the two pressing plates to manually drive the two pressing plates to move towards each other or away from each other up and down. An expandable airbag is provided on each of the surfaces of the two pressing plates close to each other. An air pipe and a control valve are provided on each pressing plate, the air pipe is communicated with the airbag, and the control valve is arranged on the air pipe to control the on-off of the air pipe.

[0011] Further, the baffle is a backwardly curved arc-shaped plastic plate.

[0012] Further, the wearing fixing member includes a first connecting band and a second connecting band. The first connecting band is provided at the left end of the baffle, and there are two first connecting bands distributed on the upper and lower sides of the left-end avoidance through groove. The second connecting band is provided at the right end of the baffle, and there are two second connecting bands distributed on the upper and lower sides of the right-end avoidance through groove. The two first connecting bands are connected to the two second connecting bands in one-to-one correspondence.

[0013] Further, a hook layer of Velcro is provided on the first connecting band, a fluff layer of Velcro is provided on the second connecting band, and the hook layer is bonded to the fluff layer.

[0014] Further, a screw shaft is provided at the front end of the dental pad, a corresponding first screw hole is provided at the rear end of the baffle, and the screw shaft is threadedly connected to the first screw hole.

[0015] Further, the dental pad is a backwardly bent arc-shaped plate, and a concave anti-slip groove is provided on the surface of the dental pad that contacts the teeth.

[0016] Further, both pressing plates are arc-shaped pressing plates protruding away from each other, the airbags on the pressing plates are arc-shaped airbags matching their own arcs, and anti-slip convex lines are provided on the surface of the airbags.

[0017] Further, a flat boss is provided on the front side of the baffle, and the pipe passing hole and one of the avoidance grooves communicating with the pipe passing hole both penetrate through the flat boss;

[0018] The manual driving member includes a turntable and a screw rod. The screw rod is vertically arranged and rotatably installed on the flat boss. One end of the screw rod is fixedly provided with the turntable. The screw rod is divided into an upper rod section and a lower rod section along its length direction. External threads are provided on both the upper rod section and the lower rod section, and the external threads of the two are opposite in rotation direction;

[0019] Driving plates are provided on one side of the two pressing plates close to the screw rod. Second screw holes with internal threads are provided on the driving plates. The second screw hole of the upper pressing plate is in threaded cooperation with the upper rod section, and the second screw hole of the lower pressing plate is in threaded cooperation with the lower rod section.

[0020] Further, a vertical guiding groove is provided on the front side surface of the flat boss, and a guiding rail is provided on the rear side surface of the driving plate. The guiding rail is slidably matched with the guiding groove.

[0021] Further, the control valve is a switching valve with a handle.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. The device adopts a wearable design, and the device can be conveniently fixed on the patient's mouth through the wearable fixing member, improving the convenience and stability of use.

[0024] 2. The baffle adopts an open-loop type pipe passing hole design. After the tracheal catheter is successfully inserted, it can be directly snapped into the pipe passing hole through the notch from the avoidance groove, which does not affect the normal insertion of the tracheal catheter and is also convenient for subsequent fixing operations. At the same time, in addition to being used to communicate with the pipe passing hole to form a pipe passing path, the avoidance groove can also be used as a suction sputum groove. The avoidance groove is a horizontal strip-shaped groove structure, and avoidance grooves are provided at both the left and right ends of the baffle, which is convenient for flexibly adjusting the position of the suction sputum tube in the later stage and realizing a larger range of suction sputum treatment for the patient's oral cavity.

[0025] 3. The dental pad module includes two relatively arranged upper and lower dental pad plates, which can realize the occlusal support for the patient's teeth, avoid the occlusion of the tracheal catheter by the patient's teeth, and the dental pad plate is detachably connected to the baffle, which is convenient for realizing the disposable replacement of the dental pad plate, and other components can be reused after disinfection, reducing the use cost.

[0026] 4. The fixing module can adjust the two pressing plates to move towards each other through the manual driving member, rigidly squeeze the tracheal catheter, and then the air bags on the pressing plates can further flexibly squeeze the tracheal catheter after inflation. Therefore, through the combined action of rigid extrusion and flexible extrusion, the tracheal catheter can be effectively fixed to prevent it from falling off.

[0027] 5. The overall structure of this device is reasonably designed, and each module cooperates with each other, integrating three major functions: oral occlusion support, tracheal catheter fixation, and oral secretion management. It is not only convenient for the stable fixation of the tracheal catheter but also convenient for later care.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Brief Description of the Drawings

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and the drawings are only examples and not drawn strictly to scale. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0030] Figure 1 is the front-side schematic diagram of the present invention;

[0031] Figure 2 is the rear-side schematic diagram of the present invention;

[0032] Figure 3 is the partial structure schematic diagram of the present invention;

[0033] Figure 4 is the separation schematic diagram of the baffle and the dental pad of the present invention;

[0034] Figure 5 is the three-dimensional view of the fixed module part of the present invention;

[0035] Figure 6 is the front view of the fixed module part of the present invention;

[0036] Figure 7 is the exploded view of the fixed module part of the present invention;

[0037] Figure 8 is the schematic diagram of the pressing plate part of the present invention.

[0038] Reference Signs:

[0039] 1. Baffle Module; 11. Baffle; 12. Pipe Passing Hole; 13. Avoidance Through Slot; 14. First Connecting Band; 15. Second Connecting Band; 16. Adhesive Hook Layer; 17. Adhesive Hair Layer; 18. First Screw Hole; 19. Plane Boss; 110. Guide Slot;

[0040] 2. Dental Pad Module; 21. Dental Pad; 22. Screw Shaft; 23. Anti-Detachment Groove;

[0041] 3. Fixing module; 31. Pressure plate; 32. Airbag; 33. Air tube; 34. Control valve; 35. Turntable; 36. Screw; 37. Driving plate; 38. Second screw hole; 39. Guide rail. Detailed implementation manners

[0042] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] The embodiments of the present invention are described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0044] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] In the description of the present invention, the "first feature" and "second feature" may include one or more of such features. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0046] As Figures 1-8 shown, a fixing device for preventing the detachment of an air tube 33 catheter includes: a baffle module 1, a dental pad module 2 and a fixing module 3.

[0047] As Figures 1-4As shown in the figure, the baffle module 1 includes a baffle 11 and a wearable fixing member. A pipe-passing hole 12 penetrating the baffle 11 in the front-back direction is provided at the center of the baffle 11. Transverse avoidance through grooves 13 are respectively provided at the left and right ends of the baffle 11, and one of the avoidance through grooves 13 communicates with the pipe-passing hole 12. A wearable fixing member is provided on the baffle 11, and the wearable fixing member is used to fix the baffle 11 on the human mouth.

[0048] The dental pad module 2 includes two dental pads 21 arranged one above the other. The dental pads 21 are provided at the rear side of the baffle 11, and the pipe-passing hole 12 is located between the two dental pads 21. The dental pads 21 are detachably connected to the baffle 11.

[0049] The fixing module 3 includes a pressing plate 31, a manual driving member, an airbag 32, an air pipe 33 and a control valve 34. There are two pressing plates 31 in total and they are arranged one above the other. The pressing plates 31 are provided at the front side of the baffle 11, and the pipe-passing hole 12 is located between the two pressing plates 31. A manual driving member is further provided on the front side of the baffle 11. The manual driving member is connected to the two pressing plates 31 to manually drive the two pressing plates 31 to move towards each other or away from each other in the up-down direction. Layers of inflatable airbags 32 are respectively provided on the surfaces of the two pressing plates 31 close to each other. An air pipe 33 and a control valve 34 are provided on each pressing plate 31. The air pipe 33 communicates with the airbag 32, and the control valve 34 is provided on the air pipe 33 to control the on-off of the air pipe 33.

[0050] Specifically, the whole device adopts a wearable design. Therefore, when in use, the device can be conveniently fixed on the patient's mouth by using the wearable fixing member, greatly improving the convenience of use.

[0051] Since in actual clinical operations, generally the tracheal catheter of the air pipe 33 is inserted first. After the tracheal catheter of the air pipe 33 is successfully inserted, a ventilator will be connected, and finally the tracheal catheter of the air pipe 33 will be fixed.

[0052] Therefore, in order not to affect the normal insertion of the tracheal catheter of the air pipe 33 and to facilitate the subsequent fixation of the tracheal catheter of the air pipe 33, the pipe-passing hole 12 on the baffle 11 adopts an open-loop design, that is, a transverse avoidance through groove 13 communicating with the pipe-passing hole 12 is provided at one end of the baffle 11, so that a notch is formed on one side of the pipe-passing hole 12. On this basis, the dental pad module 2 is provided with two upper and lower dental pads 21, and the fixing module 3 is provided with two upper and lower pressing plates 31. The two dental pads 21 and the pressing plates 31 are all located on the upper and lower sides of the pipe-passing hole 12, so as not to interfere with the notch of the pipe-passing hole 12. When the tracheal catheter of the air pipe 33 is successfully inserted, the tracheal catheter of the air pipe 33 can directly pass through the avoidance through groove 13 beside and be clamped into the pipe-passing hole 12 through the notch, which is very convenient.

[0053] The baffle 11 in this device mainly serves as the installation foundation for the dental pad module 2 and the fixing module 3. During use, the set dental pad module 2 is located inside the patient's oral cavity. At this time, the upper and lower dental pads 21 of the dental pad module 2 can achieve the occlusal support for the patient's teeth, enabling the tracheal catheter 33 to pass through between the two dental pads 21 and then extend outwards through the pipe hole 12, thereby avoiding the occlusal influence of the patient's teeth on the tracheal catheter 33. And when the patient bites on the dental pad 21, the use of the patient's own biting force combined with the fixation of the wearable fixing piece can effectively increase the stability of the entire device. The dental pad 21 adopts a detachable design, which facilitates the one-time replacement of the dental pad 21, and other components can be reused after disinfection, helping to reduce the use cost.

[0054] The set fixing module 3 is located outside the patient's oral cavity. At this time, after the tracheal catheter 33 extends outwards through the pipe hole 12, it is threaded between the two pressing plates 31. Medical staff can adjust the two pressing plates 31 to move towards each other through a manual driving member to rigidly squeeze the tracheal catheter 33. In addition, an airbag 32 is provided on each pressing plate 31. When the control valve 34 is opened and the inflation device is used to inflate the trachea 33, the airbag 32 can expand. After the airbag 32 expands, it will further flexibly squeeze the tracheal catheter 33. Thus, through the combined action of the rigid squeezing of the pressing plate 31 and the flexible squeezing of the airbag 32, the tracheal catheter 33 can be effectively fixed to prevent the tracheal catheter 33 from falling off.

[0055] In addition, during the use of the tracheal catheter 33, due to the stimulation of the tracheal catheter 33 to the respiratory tract, sputum will inevitably be generated in the patient's throat. Therefore, in addition to being used to communicate with the pipe hole 12 to form a pipe-passing path, the avoidance through groove 13 on the baffle 11 itself can also be used as a suction sputum through groove, facilitating medical staff to use a suction tube to pass through the avoidance through groove 13 and extend into the patient's oral cavity to clean the sputum in time.

[0056] The avoidance through groove 13 here is a horizontal strip-shaped groove structure, and the avoidance through grooves 13 are provided at both the left and right ends of the baffle 11. Therefore, it is convenient to flexibly adjust the position of the suction tube in the later stage, which helps to achieve a larger range of sputum suction treatment for the patient's oral cavity.

[0057] In this device, as Figure 1 shown, the baffle 11 is an arc-shaped plastic plate bent backward, which fits the structure of the mouth better.

[0058] In this device, the wearing and fixing member includes a first connecting band 14 and a second connecting band 15. The left end of the baffle 11 is provided with the first connecting band 14. There are two first connecting bands 14 in total and they are distributed on the upper and lower sides of the left-end avoiding through groove 13. The right end of the baffle 11 is provided with the second connecting band 15. There are two second connecting bands 15 in total and they are distributed on the upper and lower sides of the right-end avoiding through groove 13. The two first connecting bands 14 are connected to the two second connecting bands 15 in a one-to-one correspondence, thereby improving the fixing reliability during wearing.

[0059] The first connecting band 14 is provided with a hook layer 16 of Velcro, and the second connecting band 15 is provided with a pile layer 17 of Velcro. The hook layer 16 is bonded to the pile layer 17. This connection form of Velcro is simple, and the tightness during fixing can be adjusted, making it flexible to use.

[0060] In this device, as Figure 4 shown, the front end of the dental backing plate 21 is provided with a screw shaft 22, and the rear end of the baffle 11 is provided with a corresponding first screw hole 18. The screw shaft 22 is in threaded connection with the first screw hole 18, thereby realizing the detachable connection between the dental backing plate 21 and the baffle 11. This detachable form is simple and easy to achieve.

[0061] The used dental backing plate 21 is an arc-shaped plate bent backward, which helps to improve the use comfort. The surface of the dental backing plate 21 in contact with the teeth is provided with a sunken anti-detachment groove 23, so that the teeth are not easily separated from the dental backing plate 21.

[0062] In this device, as Figures 5-8 shown, both of the two pressing plates 31 are arc-shaped pressing plates 31 protruding away from each other. The airbag 32 on the pressing plate 31 is an arc-shaped airbag 32 matching its own radian. The surface of the airbag 32 is provided with anti-slip convex lines, thereby improving the fixing effect on the trachea 33 catheter.

[0063] In this device, a flat convex platform 19 is provided on the front side of the baffle 11. The pipe-passing hole 12 and one of the avoiding through grooves 13 communicating with the pipe-passing hole 12 both penetrate through the flat convex platform 19; the manual driving member includes a turntable 35 and a screw rod 36. The screw rod 36 is vertically arranged and rotatably installed on the flat convex platform 19. One end of the screw rod 36 is fixedly provided with the turntable 35. The screw rod 36 is divided into an upper rod section and a lower rod section along its length direction. Both the upper rod section and the lower rod section are provided with external threads and the external threads of the two are opposite in helix direction; both sides of the two pressing plates 31 close to the screw rod 36 are provided with driving plates 37. The driving plate 37 is provided with a second screw hole 38 with internal threads. The second screw hole 38 of the upper pressing plate 31 is in threaded cooperation with the upper rod section, and the second screw hole 38 of the lower pressing plate 31 is in threaded cooperation with the lower rod section. Thus, when the screw rod 36 is manually rotated, the two pressing plates 31 can be moved towards each other and away from each other. This driving form is simple, and the threaded connection has self-locking property, and it is not easy to loosen after pressing the trachea 33 catheter.

[0064] Furthermore, a vertical guide groove 110 is provided on the front side of the planar convex platform 19, and a guide rail 39 is provided on the rear side of the driving plate 37. The guide rail 39 is slidably engaged with the guide groove 110, thereby guiding the movement of the pressing plate 31.

[0065] In this device, the control valve 34 is a switch valve with a handle. This structure of the control valve 34 is simple and convenient to operate.

[0066] In summary, this device has the following characteristics:

[0067] 1. The device adopts a wearable design. It can be conveniently fixed on the patient's mouth through the wearable fixing parts, improving the convenience and stability of use.

[0068] 2. The open-loop pipe-passing holes 12 are designed on the baffle 11. After the tracheal catheter 33 is successfully inserted, it can be directly snapped into the pipe-passing holes 12 through the notch from the avoidance groove 13, which does not affect the normal insertion of the tracheal catheter 33 and is also convenient for subsequent fixing operations. At the same time, in addition to being used to communicate with the pipe-passing holes 12 to form a pipe-passing path, the avoidance groove 13 can also be used as a suction groove for sputum suction. The avoidance groove 13 is a horizontal strip-shaped groove structure, and the avoidance grooves 13 are provided at both the left and right ends of the baffle 11, facilitating the flexible adjustment of the position of the sputum suction tube in the later stage and realizing a larger range of sputum suction treatment for the patient's oral cavity.

[0069] 3. The dental pad module 2 includes two relatively arranged dental pads 21 up and down, which can realize the occlusal support for the patient's teeth, avoiding the influence of the patient's teeth on the tracheal catheter 33. And the dental pad 21 is detachably connected to the baffle 11, facilitating the disposable replacement of the dental pad 21, and other components can be reused after disinfection, reducing the use cost.

[0070] 4. The fixing module 3 can adjust the two pressing plates 31 to move towards each other through a manual driving member, rigidly squeezing the tracheal catheter 33, and then the airbag 32 on the pressing plate 31 can further flexibly squeeze the tracheal catheter 33 after inflation. Thus, through the combined action of rigid squeezing and flexible squeezing, the tracheal catheter 33 can be effectively fixed to prevent it from falling off.

[0071] 5. The overall structure of this device is reasonably designed, and each module cooperates with each other, integrating three major functions: oral occlusal support, tracheal catheter 33 fixation, and oral secretion management. It is not only convenient for the stable fixation of the tracheal catheter 33 but also convenient for subsequent nursing care.

[0072] Although some embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that: without departing from the principles and purposes of the present invention, various changes, modifications, substitutions, and variations made to these embodiments are all within the protection scope of the claims of the present invention.

Claims

1. A tracheal tube anti-dropout fixing device, characterized in that: include: A baffle module, the baffle module includes a baffle and a wearable fixing member, the center of the baffle is provided with a through-tube hole penetrating the baffle in the front-to-back direction, the left and right ends of the baffle are respectively provided with transverse avoidance grooves, and one of the avoidance grooves is connected to the through-tube hole, the baffle is provided with the wearable fixing member, and the wearable fixing member is used to fix the baffle on the mouth of a human body; A tooth pad module, the tooth pad module comprising two tooth pad plates arranged opposite to each other one above the other, the tooth pad plates being arranged at the rear side of the baffle plate and the pipe-through hole being located between the two tooth pad plates, the tooth pad plates being detachably connected to the baffle plate; A fixing module, the fixing module includes a pressing plate, a manual driving member, an airbag, an air pipe and a control valve. There are two pressing plates in total and they are arranged opposite to each other one above and one below. The pressing plate is arranged on the front side of the baffle and the pipe hole is located between the two pressing plates. The front side of the baffle is also provided with the manual driving member, the manual driving member is connected to the two pressing plates to manually drive the two pressing plates to move up and down toward each other or away from each other. A layer of inflatable airbag is respectively provided on the surfaces of the two pressing plates close to each other. An air pipe and a control valve are provided on each pressing plate. The air pipe is connected to the airbag, and the control valve is provided on the air pipe to control the on and off of the air pipe.

2. The endotracheal tube anti-dropout fixing device according to claim 1, characterized in that: The baffle is a curved plastic plate that bends backwards.

3. The endotracheal tube anti-dropout fixing device according to claim 1, characterized in that: The wearing fixing component includes a first connecting belt and a second connecting belt. The left end of the baffle is provided with a first connecting belt, and there are two first connecting belts distributed on the upper and lower sides of the left end avoidance groove. The right end of the baffle is provided with a second connecting belt, and there are two second connecting belts distributed on the upper and lower sides of the right end avoidance groove. The two first connecting belts are connected to the two second connecting belts in a one-to-one correspondence.

4. The endotracheal tube anti-disconnection fixing device according to claim 3, characterized in that: The first connecting belt is provided with a hook layer of Velcro, and the second connecting belt is provided with a wool layer of Velcro, and the hook layer is bonded to the wool layer.

5. The endotracheal tube anti-dropout fixing device according to claim 1, characterized in that: A screw shaft is provided at the front end of the tooth pad, and a corresponding first screw hole is provided at the rear end of the baffle, and the screw shaft is threadedly connected with the first screw hole.

6. The endotracheal tube anti-dropout fixing device according to claim 1, characterized in that: The tooth pad is an arc-shaped plate bent backwards, and a concave anti-slip groove is provided on the surface of the tooth pad that contacts the teeth.

7. The endotracheal tube anti-dropout fixing device according to claim 1, characterized in that: Both pressure plates are arc-shaped pressure plates protruding in a direction away from each other, the airbags on the pressure plates are arc-shaped airbags matching the curvature of the pressure plates, and the surfaces of the airbags are provided with anti-slip convex patterns.

8. The endotracheal tube anti-dropout fixing device according to claim 1, characterized in that: A planar boss is provided on the front side of the baffle, and the pipe-through hole and one of the avoidance slots connected to the pipe-through hole both pass through the planar boss; The manual drive member comprises a turntable and a screw rod, the screw rod is vertically arranged and rotatably mounted on the planar boss, one end of the screw rod is fixedly provided with the turntable, the screw rod is divided into an upper rod section and a lower rod section along its length direction, both the upper rod section and the lower rod section are provided with external threads, and the external threads of the two are in opposite directions; A driving plate is provided on one side of the two pressing plates close to the screw rod, and a second screw hole with an internal thread is provided on the driving plate, wherein the second screw hole of the upper pressing plate cooperates with the thread of the upper rod section, and the second screw hole of the lower pressing plate cooperates with the thread of the lower rod section.

9. The endotracheal tube anti-dropout fixing device according to claim 8, characterized in that: A vertical guide groove is arranged on the front side of the planar boss, and a guide rail is arranged on the rear side of the driving plate. The guide rail is slidably matched with the guide groove.

10. The endotracheal tube anti-dropout fixing device according to claim 1, characterized in that: The control valve is a switch valve with a handle.

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