CN113907977B

CN113907977B - Trachea cannula device of difficult air flue

Info

Publication number: CN113907977B
Application number: CN202110976526.3A
Authority: CN
Inventors: 姜虹; 夏明�; 曹爽; 王杰; 徐天意; 金晨昱; 周韧
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-09-06
Anticipated expiration: 2041-08-24
Also published as: WO2023025078A1; CN113907977A

Abstract

The invention discloses a trachea cannula device with a difficult airway, which comprises a first fixing plate, a second fixing plate and a cannula assembly arranged above the first fixing plate, wherein guide rods are fixedly connected to the left side and the right side of the back of the first fixing plate, and the invention relates to the technical field of trachea cannula auxiliary equipment. The trachea cannula device with the difficult airway and the method thereof are characterized in that the trachea cannula device with the difficult airway is characterized in that a first fixing plate, a second fixing plate, a limiting plate, a second lead screw, a moving plate, an elastic limiting mechanism and a clamping plate are arranged, the temple position and the lower jaw position of the head of a patient are fixed, a guide rod is arranged, a linkage plate is arranged in cooperation with the first lead screw, the distance between the first fixing plate and the second fixing plate can be adjusted, the device can limit and fix heads with different sizes, a mouth positioning mechanism is directly fixed on the device, hands of doctors can be liberated, convenient conditions are provided for subsequent intubation of doctors, and the efficiency and the quality of intubation are guaranteed.

Description

Trachea cannula device with difficult airway

Technical Field

The invention relates to the technical field of trachea cannula auxiliary equipment, in particular to a trachea cannula device with a difficult airway.

Background

The trachea cannula is a technique that a special trachea catheter is placed into a trachea through a glottis and is called as trachea cannula, the technique can provide optimal conditions for unobstructed airways, ventilation and oxygen supply, respiratory tract suction, prevention of aspiration and the like, and the emergency trachea cannula technique becomes an important measure in the rescue process of cardiopulmonary resuscitation and critical patients accompanied with respiratory dysfunction. The trachea intubation is an important rescue technique commonly used in emergency treatment work, is one of the most widely, effectively and quickly applied means in respiratory tract management, is the basic skill which must be mastered by medical staff, and plays a vital role in rescuing the life of a patient and reducing the fatality rate.

Patient's oxygen deficiency just carries out the intubate, and human oxygen deficiency can cause the mania condition to appear, patient's continuous struggle, very influence trachea cannula's going on, simple adoption bandage is fixed and can not effectively guarantee patient's stability, influence treatment efficiency, and the trachea is looked for to the convenient doctor of conventional intubate, need adopt usually to dial tongue instrument and dial the tongue to one side in oral cavity, just so lead to the doctor to be able to one hand intubate, seriously influence the intubate quality, when making patient have trachea damage risk, intubate efficiency is lower.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a trachea cannula device with a difficult airway, which solves the problems that the stability of a patient cannot be effectively ensured during intubation, the treatment efficiency is influenced, and the intubation efficiency is lower while the patient has the risk of trachea injury due to conventional intubation.

(II) technical scheme

In order to realize the purpose, the invention is realized by the following technical scheme: a trachea cannula device of a difficult airway comprises a first fixing plate, a second fixing plate and a cannula assembly arranged above the first fixing plate, wherein guide rods are fixedly connected to the left side and the right side of the back of the first fixing plate, ends of the guide rods penetrate through the second fixing plate and are fixedly connected with a linkage plate, the back of the linkage plate penetrates through and is in threaded connection with a first lead screw, the front end of the first lead screw is rotatably connected with the back of the second fixing plate through a bearing, limiting plates are fixedly connected to the left side and the right side of the bottoms of the first fixing plate and the second fixing plate, the surface of each limiting plate penetrates through and is in threaded connection with a second lead screw, rotating heads are fixedly connected to one ends of the first lead screw and the second lead screw, a moving plate is rotatably connected to one end of the second lead screw through a bearing, and an elastic limiting mechanism is fixedly connected to one side, far away from the limiting plates, of the moving plate, one end of the elastic limiting mechanism, which is far away from the moving plate, is fixedly connected with a clamping plate, and the back of the first fixing plate is rotatably connected with a mouth positioning mechanism through a pin.

Preferably, the elastic limiting mechanism comprises a sleeve, a spring and a push rod, the inner surface of the sleeve is in sliding connection with the outer surface of the push rod, and two ends of the spring are fixedly connected with the inner cavity of the sleeve and one end of the push rod respectively.

Preferably, the other end of the push rod is fixedly connected with one side of the clamping plate, and the sleeve is fixedly installed on one side, far away from the limiting plate, of the moving plate.

Preferably, the mouth positioning mechanism comprises two square frames, the top of each square frame is fixedly connected with a connecting rod, the top of each connecting rod is fixedly connected with a limiting ring, one limiting ring is fixedly connected with a magic tape, one side of each magic tape is provided with a magic tape hook face, the other side of each magic tape hook face is provided with a magic tape suede matched with the magic tape hook face, and the bottom of each square frame is fixedly connected with a mouth inlet column.

Preferably, tooth sockets are sleeved on the outer surfaces of the two mouth inlet columns, and a tongue depressor is fixedly connected to one side, close to the other tooth socket, of the back of one tooth socket.

Preferably, the movable plate is close to one side of the limiting plate and located at the upper side and the lower side of the second screw rod, the auxiliary rod is fixedly connected to the upper side and the lower side of the second screw rod, and one end of the auxiliary rod penetrates through the limiting plate and extends to the outside of the limiting plate.

Preferably, one side of the clamping plate, which is far away from the moving plate, is fixedly provided with an elastic pad through magic tape adhesion, and the top of the second fixing plate is rotatably connected with a shielding plate through a rotating shaft.

Preferably, the middle part of the bottom of the first fixing plate is rotatably connected with a telescopic sleeve plate through a rotating block, the telescopic sleeve plate is arranged in a structure inside the sleeve plate in a sliding mode through one fixing plate, the bottom of the telescopic sleeve plate is fixedly connected with a mouthpiece sleeve, and an LED lamp is fixedly arranged at the bottom of the mouthpiece sleeve.

Preferably, the intubation tube assembly comprises a catheter, an air bag, a suction tube and two air supply tubes, the air bag is sleeved and fixedly installed at the bottom of the outer surface of the catheter, the two air supply tubes penetrate through the wall of the catheter and extend to the inside of the air bag, the catheter is sleeved outside the suction tube, and openings matched with the catheter are formed in the surface of the bite-block sleeve.

The invention also discloses a using method of the trachea cannula device with difficult airway, which comprises the following steps:

step one, head fixing: rotating the two second screw rods at the bottom of the second fixed plate to enable the movable plate at the bottom of the second fixed plate to move and further push the corresponding clamping plate to move so as to clamp and fix the temple region of the head of the patient, then rotating the first screw rod according to the size of the head of the patient to drive the first fixed plate to move to the lower jaw of the patient, and then rotating the two second screw rods at the bottom of the first fixed plate to enable the movable plate at the bottom of the first fixed plate to move and further push the corresponding clamping plate to clamp and fix the lower jaw of the patient;

step two, mouth fixing: on the basis of fixing the head in the first step, the height of the mouth positioning mechanism is reduced, so that the tooth socket falls into the oral cavity of a patient, then the connecting rod is rotated, so that the square frame drives the tooth socket to move, the dynamic tongue pressing plate is driven to press the tongue of the patient in the process, the tongue is inclined, the tooth of the user can be bitten on the tooth socket when being bitten, the magic tape is wound on the two limiting rings back and forth, the angle between the two square frames is fixed, and the mouth of the patient is fixed;

step three, cannula positioning: on the basis of completing the mouth positioning in the second step, the telescopic sleeve plate is rotated, the mouthpiece sleeve is located on the lips of the patient and stretches into the oral cavity of the patient, the LED lamp is started to illuminate the oral cavity of the patient, the catheter is inserted into the trachea of the patient, when an obstacle is encountered, the catheter is inserted into the trachea of the patient, the catheter is extracted outwards, the obstacle is extracted out, after the specified position is reached, the air is delivered into the air bag through the air delivery pipe, the air bag is expanded to be attached to the inner wall of the trachea, the intubation is completed, and then the shielding plate is rotated to shield the eyes of the patient.

(III) advantageous effects

The invention provides a trachea cannula device for difficult airways. The method has the following beneficial effects:

(1) this trachea cannula device of difficult air flue and method thereof, through first fixed plate, the second fixed plate, the limiting plate, the second lead screw, the movable plate, the cooperation setting of elasticity stop gear and grip block, temple department and the lower jaw department to patient's head are fixed, and at the guide arm, under the cooperation setting of linkage plate and first lead screw, make the interval between first fixed plate and the second fixed plate can be adjusted, thereby make the device can carry out spacing fixed to the head of equidimension not, and directly fix mouth positioning mechanism on the device, can liberate doctor's hand, provide convenient condition for doctor's subsequent intubate, guarantee the efficiency and the quality of intubate.

(2) This trachea cannula device of difficult air flue and method thereof, through the square frame, the connecting rod, the spacing ring, the ribbon is pasted to the magic, go into the mouth post, the cooperation setting of facing and tongue depressor, utilize the magic to paste the ribbon and guarantee the rapid fixation between two spacing rings, and the setting of cooperation square frame, make the interval between two income mouth posts and with the first fixed plate between the distance can carry out nimble regulation, thereby provide sufficient advantage for doctor's intubate, and the facing that cup joints, it is clean to change conveniently, the safety and sanitation that the device used has effectively been guaranteed.

(3) This trachea cannula device of difficult air flue and method thereof, through the setting of shielding plate, can shelter from ward light behind the intubate to guarantee that patient's eye protects, under the cooperation setting of flexible lagging jack, mouthpiece cover and LED lamp, when providing the intubate location for the doctor, can illuminate oral cavity internal environment, thereby provide convenient condition for tracheal accurate seeking.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic view of the connection of a guide bar, a linkage plate and a first lead screw structure according to the present invention;

FIG. 3 is a schematic view of the cannula assembly of the present invention;

FIG. 4 is a schematic structural view of an elastic spacing mechanism according to the present invention;

FIG. 5 is a schematic view of the mouth positioning mechanism of the present invention;

FIG. 6 is a schematic view of the connection between the retaining ring and the Velcro ribbon structure of the present invention;

FIG. 7 is a schematic view of the connection of the telescoping sleeve plate, bite block sleeve and LED light structure of the present invention.

In the figure, 1, a first fixing plate; 2. a second fixing plate; 3. a cannula assembly; 4. a guide bar; 5. a linkage plate; 6. a first lead screw; 7. a limiting plate; 8. a second lead screw; 9. moving the plate; 10. an elastic limiting mechanism; 11. a clamping plate; 12. a mouth positioning mechanism; 13. a sleeve; 14. a spring; 15. a push rod; 16. a square frame; 17. a connecting rod; 18. a limiting ring; 19. magic tape; 20. a mouth inlet column; 21. a tooth socket; 22. a tongue depressor; 23. an auxiliary rod; 24. an elastic pad; 25. a shielding plate; 26. a telescopic sleeve plate; 27. biting sleeves; 28. an LED lamp; 29. a conduit; 30. an air bag; 31. drawing a pipe; 32. a gas delivery pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-7, the embodiment of the present invention provides the following two technical solutions:

the first embodiment,

A trachea cannula device of difficult airway comprises a first fixing plate 1, a second fixing plate 2 and a cannula component 3 arranged above the first fixing plate 1.

As a preferred scheme, the left side and the right side of the back of a first fixed plate 1 are fixedly connected with guide rods 4, the ends of the guide rods 4 penetrate through a second fixed plate 2 and are fixedly connected with a linkage plate 5, the back of the linkage plate 5 penetrates through and is in threaded connection with a first lead screw 6, the front end of the first lead screw 6 is rotatably connected with the back of the second fixed plate 2 through a bearing, the left side and the right side of the bottoms of the first fixed plate 1 and the second fixed plate 2 are fixedly connected with a limit plate 7, the surface of the limit plate 7 penetrates through and is in threaded connection with a second lead screw 8, one end of the second lead screw 8 is rotatably connected with a movable plate 9 through a bearing, one side of the movable plate 9, which is far away from the limit plate 7, is fixedly connected with an elastic limit mechanism 10, one end of the elastic limit mechanism 10, which is far away from the movable plate 9, is fixedly connected with a clamping plate 11, the back of the first fixed plate 1 is rotatably connected with a mouth positioning mechanism 12 through a pin column, further description, through first fixed plate 1, second fixed plate 2, limiting plate 7, second lead screw 8, movable plate 9, elasticity stop gear 10 and grip block 11's cooperation setting, temple department and lower jaw department to patient's head are fixed, and at guide arm 4, the cooperation of linkage plate 5 and first lead screw 6 sets up down, make interval between first fixed plate 1 and the second fixed plate 2 can be adjusted, thereby make the device can carry out spacing fixed to the head of equidimension not, and directly fix mouth positioning mechanism 12 on the device, can liberate doctor's hand, provide the convenient condition for the subsequent intubate of doctor, guarantee the efficiency and the quality of intubate.

Example II,

The embodiment is an improvement of the previous embodiment, and the trachea cannula device for difficult airways comprises a first fixing plate 1, a second fixing plate 2 and a cannula assembly 3 arranged above the first fixing plate 1.

As a preferred scheme, the left side and the right side of the back of a first fixed plate 1 are fixedly connected with guide rods 4, the ends of the guide rods 4 penetrate through a second fixed plate 2 and are fixedly connected with a linkage plate 5, the back of the linkage plate 5 penetrates through and is in threaded connection with a first lead screw 6, the front end of the first lead screw 6 is rotatably connected with the back of the second fixed plate 2 through a bearing, the left side and the right side of the bottoms of the first fixed plate 1 and the second fixed plate 2 are fixedly connected with a limit plate 7, the surface of the limit plate 7 penetrates through and is in threaded connection with a second lead screw 8, one end of the second lead screw 8 is rotatably connected with a movable plate 9 through a bearing, one side of the movable plate 9, which is far away from the limit plate 7, is fixedly connected with an elastic limit mechanism 10, one end of the elastic limit mechanism 10, which is far away from the movable plate 9, is fixedly connected with a clamping plate 11, the back of the first fixed plate 1 is rotatably connected with a mouth positioning mechanism 12 through a pin column, further description, through first fixed plate 1, second fixed plate 2, limiting plate 7, second lead screw 8, movable plate 9, the cooperation setting of elasticity stop gear 10 and grip block 11, temple department and the chin department to patient's head are fixed, and at guide arm 4, linkage plate 5 and first lead screw 6's cooperation sets up down, make interval between first fixed plate 1 and the second fixed plate 2 can be adjusted, thereby make the device can carry out spacing fixed to the head of equidimension not, and directly fix mouth positioning mechanism 12 on the device, can liberate doctor's hand, for the subsequent intubate of doctor provides convenient condition, guarantee the efficiency and the quality of intubate.

As a preferred scheme, the elastic limiting mechanism 10 comprises a sleeve 13, a spring 14 and a push rod 15, wherein the inner surface of the sleeve 13 is in sliding connection with the outer surface of the push rod 15, two ends of the spring 14 are respectively fixedly connected with the inner cavity of the sleeve 13 and one end of the push rod 15, the other end of the push rod 15 is fixedly connected with one side of the clamping plate 11, and the sleeve 13 is fixedly installed on one side of the moving plate 9 away from the limiting plate 7.

As a preferred scheme, the mouth positioning mechanism 12 includes two square frames 16, a connecting rod 17 is fixedly connected to the top of the square frame 16, a limit ring 18 is fixedly connected to the top of the connecting rod 17, a magic tape 19 is fixedly connected to the outer surface of one limit ring 18, a mouth post 20 is fixedly connected to the bottom of the square frame 16, tooth sockets 21 are respectively sleeved on the outer surfaces of the two mouth posts 20, and a tongue depressor 22 is fixedly connected to one side of the back of one tooth socket 21, which is close to the other tooth socket 21, further, by the matching arrangement of the square frame 16, the connecting rod 17, the limit ring 18, the magic tape 19, the mouth post 20, the tooth sockets 21 and the tongue depressor 22, the magic tape 19 is used to ensure the quick fixation between the two limit rings 18, and the arrangement of the square frame 16 is matched, so that the distance between the two mouth posts 20 and the distance between the first fixing plate 1 can be flexibly adjusted, thereby providing sufficient favorable conditions for the intubation of the doctor, and the sleeved tooth socket 21 can be conveniently replaced and cleaned, thereby effectively ensuring the safety and the sanitation of the use of the device.

As a preferred scheme, the moving plate 9 is close to one side of the limiting plate 7 and is located on both the upper side and the lower side of the second lead screw 8, and the auxiliary rod 23 is fixedly connected to the upper side and the lower side of the second lead screw, and one end of the auxiliary rod 23 penetrates through the limiting plate 7 and extends to the outside of the limiting plate 7, further explaining, the auxiliary rod 23 can ensure the stability of the moving plate 9 in moving.

As preferred scheme, the grip block 11 is kept away from one side of movable plate 9 and is fixed with cushion 24 through the magic is pasted the bonding, and the top of second fixed plate 2 is connected with shielding plate 25 through the pivot rotation, explains further, through shielding plate 25's setting, can shelter from ward light behind the intubate to guarantee that patient's eye protects.

As a preferred scheme, the middle part of the bottom of the first fixing plate 1 is rotatably connected with a telescopic sleeve plate 26 through a rotating block, the bottom of the telescopic sleeve plate 26 is fixedly connected with a mouthpiece sleeve 27, an LED lamp 28 is fixedly mounted at the bottom of the mouthpiece sleeve 27, the intubation tube assembly 3 comprises a catheter 29, an air bag 30, an intubation tube 31 and two air delivery tubes 32, the air bag 30 is sleeved and fixedly mounted at the bottom of the outer surface of the catheter 29, the two air delivery tubes 32 all penetrate through the tube wall of the catheter 29 and extend into the air bag 30, the catheter 29 is sleeved at the outside of the intubation tube 31, and openings matched with the catheter 29 are formed in the surface of the mouthpiece sleeve 27.

The advantage of the second embodiment over the first embodiment is that: through the matching arrangement of the square frame 16, the connecting rod 17, the limiting rings 18, the magic tape 19, the mouth entering column 20, the tooth socket 21 and the tongue depressor 22, the magic tape 19 is utilized to ensure the rapid fixation between the two limiting rings 18, and, in cooperation with the arrangement of the frame 16, the distance between the two inlet posts 20 and the distance between the two inlet posts and the first fixing plate 1 can be flexibly adjusted, thereby providing sufficient and favorable conditions for the intubation of the doctor, and the sleeved tooth socket 21 can be conveniently replaced and cleaned, effectively ensuring the safety and sanitation of the use of the device, and through the arrangement of the baffle plate 25, can shield the light of the ward after the intubation so as to ensure the protection of the eyes of the patient, under the matched arrangement of the telescopic sleeve plate 26, the mouthpiece sleeve 27 and the LED lamp 28, the positioning of the cannula is provided for the doctor, the interior environment of the oral cavity can be illuminated, so that convenience is provided for accurate search of the trachea.

The use method of the trachea cannula device with the difficult airway specifically comprises the following steps:

step one, head fixing: rotating the two second lead screws 8 at the bottom of the second fixed plate 2 to enable the movable plate 9 at the bottom of the second fixed plate 2 to move and further push the corresponding clamping plate 11 to move so as to clamp and fix the temple region of the head of the patient, then rotating the first lead screw 6 according to the size of the head of the patient to drive the first fixed plate 1 to move to the lower jaw of the patient, and then rotating the two second lead screws 8 at the bottom of the first fixed plate 1 to enable the movable plate 9 at the bottom of the first fixed plate 1 to move and further push the corresponding clamping plate 11 to clamp and fix the lower jaw of the patient;

step two, mouth fixing: on the basis of fixing the head in the first step, the height of the mouth positioning mechanism 12 is reduced to enable the tooth socket to fall into the oral cavity of the patient, then the connecting rod 17 is rotated to enable the square frame 16 to drive the tooth socket 21 to move, the tongue pressing plate 22 is driven to press the tongue of the patient in the process and incline the tongue, so that the teeth of the user can be bitten on the tooth socket 21 when being occluded, the magic tape 19 is wound on the two limiting rings 18 back and forth, the angle between the two square frames 16 is fixed, and the mouth of the patient is fixed;

step three, cannula positioning: on the basis of completing the mouth positioning in the second step, the telescopic sleeve plate is rotated, so that the bite-block sleeve 27 is positioned on the lip of the patient and extends into the oral cavity of the patient, the LED lamp 28 is started to illuminate the oral cavity of the patient, the catheter 29 is inserted into the trachea of the patient, when the patient encounters an obstacle, the catheter is inserted into the trachea and is pumped outwards, the obstacle is sucked out, after the specified position is reached, the air is conveyed into the air bag 30 through the air conveying pipe 32, the air bag 30 is expanded to be attached to the inner wall of the trachea, the intubation is completed, and then the shielding plate 25 is rotated to shield the eyes of the patient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a trachea cannula device of difficult air flue, includes first fixed plate (1), second fixed plate (2) and sets up intubate subassembly (3) above first fixed plate (1), its characterized in that: the guide rod (4) is fixedly connected to the left side and the right side of the back of the first fixing plate (1), the guide rod (4) penetrates through the second fixing plate (2) and is fixedly connected with the linkage plate (5), the back of the linkage plate (5) penetrates through and is in threaded connection with the first lead screw (6), the front end of the first lead screw (6) is rotatably connected with the back of the second fixing plate (2) through a bearing, the limiting plates (7) are fixedly connected to the left side and the right side of the bottoms of the first fixing plate (1) and the second fixing plate (2), the second lead screw (8) is connected to the surface of the limiting plate (7) in a penetrating and threaded connection mode, one end of the second lead screw (8) is rotatably connected with the elastic limiting mechanism (10) through a bearing, one side, far away from the limiting plate (7), of the movable plate (9) is fixedly connected with the elastic limiting mechanism (10), one end, far away from the movable plate (9), of the clamping plate (11) is fixedly connected with the elastic limiting mechanism (10), the back of the first fixing plate (1) is rotatably connected with a mouth positioning mechanism (12) through a pin;

the mouth positioning mechanism (12) comprises two square frames (16), the top of each square frame (16) is fixedly connected with a connecting rod (17), the top of each connecting rod (17) is fixedly connected with a limiting ring (18), the outer surface of one limiting ring (18) is fixedly connected with a magic tape (19), and the bottom of each square frame (16) is fixedly connected with a mouth inlet column (20);

the outer surfaces of the two mouth inlet columns (20) are respectively sleeved with tooth sockets (21), and one side, close to the other tooth socket (21), of the back of one tooth socket (21) is fixedly connected with a tongue depressor (22).

2. The difficult airway endotracheal intubation device according to claim 1, wherein: elasticity stop gear (10) include sleeve (13), spring (14) and push rod (15), the internal surface of sleeve (13) and the surface sliding connection of push rod (15), the both ends of spring (14) respectively with the inner chamber of sleeve (13) and the one end fixed connection of push rod (15).

3. A difficult airway endotracheal intubation device according to claim 2, wherein: the other end of push rod (15) and one side fixed connection of grip block (11), sleeve (13) fixed mounting is kept away from on one side of limiting plate (7) at movable plate (9).

4. A difficult airway endotracheal intubation device according to claim 3, wherein: the movable plate (9) is close to one side of the limiting plate (7) and located on the upper side and the lower side of the second screw rod (8), the auxiliary rod (23) is fixedly connected to the upper side and the lower side of the second screw rod, and one end of the auxiliary rod (23) penetrates through the limiting plate (7) and extends to the outside of the limiting plate (7).

5. The endotracheal intubation device according to claim 4, wherein: one side of the clamping plate (11) far away from the moving plate (9) is fixed with an elastic pad (24) through magic tape adhesion, and the top of the second fixing plate (2) is rotatably connected with a shielding plate (25) through a rotating shaft.

6. The difficult airway endotracheal intubation device according to claim 5, wherein: the middle part of first fixed plate (1) bottom is connected with flexible lagging (26) through the turning block rotation, the bottom fixedly connected with of flexible lagging (26) stings mouth cover (27), and stings the bottom fixed mounting of mouth cover (27) and have LED lamp (28).

7. The difficult airway endotracheal intubation device according to claim 6, wherein: intubate subassembly (3) are including pipe (29), gasbag (30), take out pipe (31) and two gas-supply pipes (32), gasbag (30) cover is established and fixed mounting is in the bottom of pipe (29) surface, two gas-supply pipes (32) all run through the pipe wall of pipe (29) and extend to the inside of gasbag (30), the outside of taking out pipe (31) is established in pipe (29) cover, and the opening of pipe (29) looks adaptation is seted up on the surface of mouthpiece cover (27).