Assisted supporting structure for tracheal intubation

Abstract

An assisted supporting structure for tracheal intubation, relating to the technical field of intubation, and solving the problems that an operation can only be completed by means of cooperation of two persons during intubation, and the intubation personnel need to have good proficiency, and can operate a laryngoscopic lens and perform tracheal intubation at the same time. An assisted supporting structure for tracheal intubation, comprising a supporting structure sliding rail A(1); a supporting structure sliding rail B(11) is provided on one side of the supporting structure sliding rail A(1); a movable plate (6) is provided between the supporting structure sliding rail A(1) and the supporting structure sliding rail B(11); an arc-shaped plate (13) is provided in front of the movable plate (6); a rotating shaft connecting rod (12) is provided between the arc-shaped plate (13) and the movable plate (6); and the rotating shaft connecting rod (12) is connected to the movable plate (6) by means of a rotating shaft. In this way, the angle of the head of a patient can be automatically adjusted and the mouth of the patient can be pulled open, thus the patient does not need to be assisted by a person aside in the intubation process, and a laryngoscope pressing down on the tongue and the tongue root can be automatically fixed, thereby reducing the requirement for the proficiency of operators.

Description

Auxiliary support structure for tracheal intubation Technical Field

[0001] The present invention relates to the technical field of endotracheal intubation, in particular to an auxiliary supporting structure of an endotracheal intubation. Background Art

[0002] Endotracheal intubation is a method of inserting a special endotracheal tube through the mouth or nasal cavity and into the trachea or bronchus via the glottis. It provides the best conditions for airway patency, ventilation and oxygen supply, and airway suction. It is an important measure to rescue patients with respiratory dysfunction.

[0003] However, the existing tracheal intubation has the problem that the tracheal intubation is easy to fall off during actual use. Patent No. CN211513024U is a tracheal intubation auxiliary device for emergency department. By providing a fastening belt and a fastening bracket, and providing a first fixing part that matches the fastening belt at both ends of the fastening bracket, a first fixing groove is provided on the first fixing part, the fastening belt is sleeved on the first fixing groove, and a first groove is provided at the front end of the fastening bracket. The first groove passes through the front and rear side surfaces of the fastening bracket, a second fixing part is provided above the fastening bracket relative to the first groove, a connecting bracket is provided below the first groove between the fastening brackets, a support column is provided between the connecting bracket and the second fixing part, a second fixing groove for passing the tracheal intubation is provided on the support column, a first through hole is provided at the top of the support column, and a fixing column is provided inside the first through hole. The utility model is sleeved on the head of the human body to solve the above problem.

[0004] During the process of inserting the endotracheal tube, one person first needs to hold the patient's head with his hand, tilt it back, try to align the patient's mouth with the endotracheal tube, and open the patient's mouth with his hand to facilitate the subsequent insertion of the laryngoscope by the intubation personnel. After the patient's mouth is opened, the intubation personnel holds the laryngoscope, inserts it into the patient's mouth, presses up the patient's tongue and the root of the tongue to open the glottis, and then the intubation personnel holds the endotracheal tube with his other hand and slowly inserts it into the interior of the trachea through the groove on the laryngoscope. This intubation method not only requires the cooperation of two staff members to complete the intubation operation, but also the intubation personnel must have a fairly high level of operational proficiency and be able to operate the laryngoscope and the endotracheal tube at the same time, which has high requirements; therefore, it does not meet the existing needs. In this regard, we propose an auxiliary support structure for endotracheal intubation.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide an auxiliary support structure for endotracheal intubation to solve the problem raised in the above-mentioned background technology that during the process of inserting the endotracheal intubation, one person first needs to hold the patient's head with his hand, tilt it back, try to align the patient's mouth with the trachea, and open the patient's mouth with his hand to facilitate the subsequent insertion of the laryngoscope by the intubation personnel. When the patient's mouth is opened, the intubation personnel holds the laryngoscope, inserts it into the patient's mouth, presses up the patient's tongue and the root of the tongue to open the glottis, and then the intubation personnel holds the endotracheal intubation tube with his other hand and slowly inserts it into the interior of the trachea through the groove on the laryngoscope. This intubation method not only requires the cooperation of two staff members to complete the intubation operation, but also the intubation personnel must have a fairly high level of operating proficiency and be able to operate the laryngoscope and the endotracheal intubation tube at the same time, which has high requirements.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an auxiliary support structure for an endotracheal tube, comprising a support structure slide rail A, a support structure slide rail B being provided on one side of the support structure slide rail A, a movable plate being provided between the support structure slide rail A and the support structure slide rail B, a curved plate being provided in front of the movable plate, a rotating shaft connecting rod being provided between the curved plate and the movable plate, the rotating shaft connecting rod being connected to the movable plate via a rotating shaft, a surface of the rotating shaft connecting rod facing the curved plate being fixed to the curved plate, and a plurality of tooth grooves being provided on a surface of the curved plate facing the movable plate in a circular arrangement;

[0008] An auxiliary throat opening mechanism is provided above the arc-shaped plate. The auxiliary throat opening mechanism comprises an angle adjustment mechanism and a laryngoscope. The angle of the laryngoscope can be adjusted arbitrarily in large or small amplitudes by the angle adjustment mechanism.

[0009] Preferably, a guide rod is provided on the surface of the support structure slide rail A facing the support structure slide rail B and on the surface of the support structure slide rail B facing the support structure slide rail A, and a cervical pillow is provided between the two guide rods and is simultaneously slidably connected to the two guide rods.

[0010] Preferably, a connecting rod is fixedly provided on the surface of the movable plate facing the supporting structure slide rail A, and the surface of the connecting rod facing the supporting structure slide rail A is connected to an electric slide slidably installed on the supporting structure slide rail A through a rotating shaft, and a clamping rod is fixedly provided on the surface of the movable plate facing the supporting structure slide rail B.

[0011] Preferably, a movable rod A is slidably mounted on one side of the upper end surface of the support structure slide rail B, a connecting rod A is provided inside the movable rod A, and a supporting spring is provided between the bottom end of the connecting rod A and the movable rod A;

[0012] A movable rod B is movably installed on one side of the upper end surface of the supporting structure slide rail A, and a connecting rod B is provided inside the movable rod B. A lifting rod is fixedly provided on the upper end surface of the connecting rod B and the connecting rod A, and the auxiliary throat opening mechanism is installed in the middle position of the outer surface of the lifting rod.

[0013] Preferably, a screw is provided inside the connecting rod B, an inner threaded through hole penetrating the connecting rod B is provided on the outer side of the screw near the bottom end, and the bottom end of the screw is connected to the movable rod B via a roller bearing;

[0014] A circular plate A is fixedly provided on the upper end surface of the screw rod, a circular plate B is provided above the screw rod, two long rods are symmetrically provided on both sides of the lower end surface of the circular plate B, both of which are movable and vertically penetrate the circular plate A, a rotating shaft is fixedly provided in the middle position of the upper end surface of the circular plate B, and a rotating handle located on the outside of the lifting rod is fixedly provided on the upper end surface of the rotating shaft.

[0015] Preferably, an annular tooth groove is provided on the outer side of the upper end surface of the circular plate B, an annular sleeve is provided above the annular tooth groove, a circle of sharp tooth heads are arranged in a ring shape on the lower end surface of the annular sleeve, and a plurality of sharp tooth grooves are provided inside the annular tooth groove to match the sharp tooth heads located on the lower end surface of the annular sleeve.

[0016] Preferably, the outer side of the rotating shaft is provided with an internal thread groove located on the outer surface of the lifting rod, the internal thread of the internal thread groove is connected to an internal thread sleeve, the outer side of the lower end surface of the internal thread sleeve is provided with a roller bearing ring, and the four end corners of the lower end surface of the roller bearing ring are fixed with a push rod, and the bottom ends of the four push rods are fixed between the annular sleeve.

[0017] Preferably, the angle adjustment mechanism includes a laryngoscope clamp, a metal rod, an arc groove, an elastic arc block, a stud A, a stud B, an internal threaded sleeve, a large bevel gear, a small bevel gear, a gear transmission shaft and a shaft, and the laryngoscope is clamped between the two laryngoscope clamps. A metal rod is fixed on one side of the outer surface of the second laryngoscope clamp from the left to the right, and a circle of arc grooves is provided on the outer surface of the metal rod, and an elastic arc block is stuck inside each of the arc grooves.

[0018] Preferably, a rotating shaft is fixed on one side of the outer surface of the metal rod, and a stud A is fixed on the outer surface of the rotating shaft, and a stud B is engaged above the stud A, and an internal threaded sleeve installed on the lifting rod through a roller bearing is engaged above the stud B.

[0019] Preferably, one side of the stud A is provided with a large bevel gear which is also fixedly mounted on the outer surface of the laryngoscope clamp, the large bevel gear is engaged with a small bevel gear, the axis of the small bevel gear is connected to a gear transmission shaft, and the upper end of the gear transmission shaft is fixed with a small angle adjustment rotating handle located on the outside of the lifting rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention uses this auxiliary support device to automatically adjust the angle of the patient's head and open the patient's mouth, so that it no longer requires two people to operate, thereby increasing the functionality of the device;

[0022] 2. The present invention can rotate the laryngoscope through the angle adjustment mechanism. As the laryngoscope located above the patient's mouth rotates, the laryngoscope will automatically enter the patient's mouth and press up the tongue and the root of the tongue to open the glottis. Every time the laryngoscope rotates a certain angle, it can be fixed under the influence of the fixing structure. The above technical solution can fix the laryngoscope with the open glottis, so that the intubation personnel no longer need to use the laryngoscope and tracheal intubation at the same time, reducing the cumbersomeness of the operation. In addition, the laryngoscope fixed by this structure will not shake easily, and its stability is higher than that of the manual fixing method. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the overall structure of the present invention;

[0024] FIG2 is a schematic diagram of the internal structure of point B in FIG1 of the present invention;

[0025] FIG3 is a side view of the internal structure of point A in FIG1 of the present invention;

[0026] FIG4 is a schematic structural diagram of point C in FIG3 of the present invention;

[0027] FIG5 is an enlarged view of the structure at point C in FIG3 of the present invention;

[0028] FIG6 is a schematic diagram of the overall bottom structure of the present invention.

[0029] In the figure: 1. Support structure slide rail A; 2. Auxiliary laryngeal opening mechanism; 201. Laryngoscope; 202. Laryngoscope clamp; 203. Metal rod; 204. Arc groove; 205. Elastic arc block; 206. Stud A; 207. Stud B; 208. Internal threaded sleeve; 209. Large bevel gear; 210. Small bevel gear; 211. Gear transmission shaft; 212. Shaft; 3. Guide rod; 4. Cervical pillow; 5. Clamping rod; 6. Movable plate; 7. Connecting rod; 8. , movable rod A; 9. lifting rod; 10. connecting rod A; 11. supporting structure slide rail B; 12. rotating shaft connecting rod; 13. arc plate; 14. tooth groove; 15. movable rod B; 16. connecting rod B; 17. screw; 18. internal threaded through hole; 19. circular plate A; 20. long rod; 21. circular plate B; 22. annular tooth groove; 23. annular sleeve; 24. push rod; 25. roller bearing ring; 26. internal threaded sleeve; 27. rotating shaft; 28. internal threaded groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Referring to Figures 1 to 6, an embodiment of the present invention provides: an auxiliary support structure for endotracheal intubation, including a support structure slide rail A1, a support structure slide rail B11 is provided on one side of the support structure slide rail A1, a movable plate 6 is provided between the support structure slide rail A1 and the support structure slide rail B11, a curved plate 13 is provided in front of the movable plate 6, a rotating shaft connecting rod 12 is provided between the curved plate 13 and the movable plate 6, the rotating shaft connecting rod 12 and the movable plate 6 are connected by a rotating shaft, the surface of the rotating shaft connecting rod 12 facing the curved plate 13 is fixed to the curved plate 13, and the surface of the curved plate 13 facing the movable plate 6 is provided with a plurality of tooth grooves 14 arranged in a ring;

[0032] An auxiliary throat opening mechanism 2 is provided above the arc plate 13. The auxiliary throat opening mechanism 2 includes an angle adjustment mechanism and a laryngoscope 201. The angle of the laryngoscope 201 can be adjusted arbitrarily in large or small ranges by the angle adjustment mechanism.

[0033] A guide rod 3 is provided on the surface of the support structure slide rail A1 facing the support structure slide rail B11 and on the surface of the support structure slide rail B11 facing the support structure slide rail A1. A cervical pillow 4 is provided between the two guide rods 3 and is slidably connected to the two guide rods 3. A connecting rod 7 is fixedly provided on the surface of the movable plate 6 facing the support structure slide rail A1, and the surface of the connecting rod 7 facing the support structure slide rail A1 is connected to an electric slide slidably mounted on the support structure slide rail A1 through a rotating shaft. A clamping rod 5 is fixedly provided on the surface of the movable plate 6 facing the support structure slide rail B11. A movable rod A8 is slidably mounted on one side of the upper end surface of the support structure slide rail B11, a connecting rod A10 is provided inside the movable rod A8, and a support spring is provided between the bottom end of the connecting rod A10 and the movable rod A8.

[0034] A movable rod B15 is movably mounted on one side of the upper end surface of the support structure slide rail A1. A connecting rod B16 is provided inside the movable rod B15. A lifting rod 9 is fixedly provided on the upper end surfaces of the connecting rod B16 and the connecting rod A10, and the auxiliary throat opening mechanism 2 is mounted in the middle position of the outer surface of the lifting rod 9. A screw rod 17 is provided inside the connecting rod B16. An internal threaded through hole 18 is provided on the outer side of the screw rod 17 near the bottom end, which penetrates the connecting rod B16. The bottom end of the screw rod 17 is connected to the movable rod B15 via a roller bearing.

[0035] A circular plate A19 is fixed on the upper end face of the screw 17, a circular plate B21 is provided above the screw 17, two long rods 20 are symmetrically provided on both sides of the lower end face of the circular plate B21, both of which are movable and vertically penetrate the circular plate A19, a rotating shaft 27 is fixed in the middle position of the upper end face of the circular plate B21, and a rotating handle located on the outer side of the lifting rod 9 is fixed on the upper end face of the rotating shaft 27; an annular tooth groove 22 is provided on the outer side of the upper end face of the circular plate B21, an annular sleeve 23 is provided above the annular tooth groove 22, and the lower end face of the annular sleeve 23 is fixed. A circle of sharp tooth heads are arranged in a ring shape, and the interior of the annular tooth groove 22 is provided with multiple sharp tooth grooves that match the sharp tooth heads located on the lower end surface of the annular sleeve 23; the outer side of the rotating shaft 27 is provided with an internal thread groove 28 located on the outer surface of the lifting rod 9, and the internal thread of the internal thread groove 28 is connected to the internal thread sleeve 26, and the outer side of the lower end surface of the internal thread sleeve 26 is provided with a roller bearing ring 25, and the four end corners of the lower end surface of the roller bearing ring 25 are fixed with a push rod 24, and the bottom ends of the four push rods 24 are fixed to the annular sleeve 23.

[0036] When in use, check the usage of each mechanism and move the device to the working area. When using this auxiliary support equipment, first remove the clamping rod 5 from the support structure slide rail B11, then flip the movable plate 6, place the patient's neck on the cervical pillow 4, so that the patient's head tilts back, then flatten the movable plate 6, clamp the clamping rod 5 to the support structure slide rail B11, then clamp the arc plate 13 connected to the movable plate 6 to the patient's lower teeth, and then start the electric slide indirectly connected to the movable plate 6 to push the movable plate 6 backward to open the patient's mouth. Through the above technical solution, it is no longer necessary to have someone assist on the side. This device can automatically adjust the angle of the patient's head and open the patient's mouth, thereby increasing its functionality.

[0037] Furthermore, the angle adjustment mechanism includes a laryngoscope clamp 202, a metal rod 203, an arc groove 204, an elastic arc block 205, a stud A 206, a stud B 207, an internal threaded sleeve 208, a large bevel gear 209, a small bevel gear 210, a gear transmission shaft 211 and a shaft 212. The laryngoscope 201 is clamped between the two laryngoscope clamps 202. A metal rod 203 is fixed on one side of the outer surface of the second laryngoscope clamp 202 from the left to the right. The outer surface of the metal rod 203 is provided with a circle of arc grooves 204, and an elastic arc block 205 is stuck inside each arc groove 204; a circle of arc grooves 204 is fixed on the outer surface of the metal rod 203. A rotating shaft 212 is fixed on the side, and a stud A206 is fixed on the outer surface of the rotating shaft 212, and a stud B207 is engaged above the stud A206, and an internal threaded sleeve 208 installed on the lifting rod 9 through a roller bearing is engaged above the stud B207; a large bevel gear 209 is provided on one side of the stud A206, which is also fixed on the outer surface of the laryngoscope clamp 202, and the large bevel gear 209 is engaged with a small bevel gear 210, and the axis of the small bevel gear 210 is connected to a gear transmission shaft 211, and the upper end of the gear transmission shaft 211 is fixed with a small angle adjustment rotating handle located on the outside of the lifting rod 9.

[0038] In actual application, the rotating shaft 27 is manually rotated to drive the circular plate B21 connected thereto and the circular plate A19 penetrated by the long rod 20 located on the lower end surface of the circular plate B21 to rotate. When the circular plate A19 rotates, the screw 17 fixed thereto will also rotate accordingly. When the screw 17 rotates, the screw 17 will move up and down through the threaded structure of the internal threaded through hole 18 connected thereto. When the screw 17 rises, the lifting rod 9 connected thereto will rise accordingly. When the screw 17 falls, the lifting rod 9 will fall as a whole, and the laryngoscope 2 located on the lifting rod 9 will be lowered. 01 is adjusted to the opened patient's mouth, and then the internal threaded sleeve 26 located on the outside of the rotating shaft 27 is rotated. Through its threaded structure, when the internal threaded sleeve 26 rotates, it can move up and down. When the internal threaded sleeve 26 descends as a whole, the push rod 24 connected to its roller bearing and the pointed tooth head on the lower end face of the annular sleeve 23 fixed to this push rod 24 will be inserted into the inside of the annular tooth groove 22 on the circular plate B21, thereby fixing the circular plate B21 to prevent it from rotating, thereby preventing the height of the laryngoscope 201 from changing during the insertion process of the laryngoscope 201.

[0039] In actual application, the internal threaded sleeve 208 located on the outer surface of the lifting rod 9 is rotated. When the internal threaded sleeve 208 rotates, the stud A206 engaged with the internal threaded sleeve 208 through the stud B207 will rotate significantly. When the stud A206 rotates, the rotating shaft 212 connected to the axis thereof and the laryngoscope clamp 202 fixed to the rotating shaft 212 through the metal rod 203 and the laryngoscope 201 clamped on the laryngoscope clamp 202 will rotate accordingly. As the laryngoscope 201 rotates, the laryngoscope 201 will enter the inside of the patient's mouth, and as the angle becomes larger, it will move upward. The tongue and its root are pressed to open the glottis. During the process of opening the glottis, the internal threaded sleeve 208 is released, and the gear transmission shaft 211 is rotated. When the gear transmission shaft 211 rotates, the small bevel gear 210 fixed thereto and the large bevel gear 209 meshing with the small bevel gear 210 will rotate slightly. When the large bevel gear 209 rotates, the shaft 212 connected to its axis and the laryngoscope 201 indirectly connected to the shaft 212 will rotate slightly. By slightly rotating the laryngoscope 201, the glottis can be opened, which can improve its safety.

[0040] During the rotation of the metal rod 203, the elastic arc block 205 inserted into the arc groove 204 on the outer surface of the metal rod 203 will be pushed outward. Whenever the metal rod 203 rotates to a certain angle, multiple elastic arc blocks 205 will be inserted into the arc groove 204 again, thereby fixing the metal rod 203 to a certain extent. When the metal rod 203 is fixed, the laryngoscope 201 indirectly connected to it will also be fixed. Through the above technical solution, the laryngoscope 201 with the glottis opened can be fixed, so that the intubation personnel no longer need to use the laryngoscope 201 and the tracheal intubation at the same time, reducing the complexity of the operation. In addition, the laryngoscope 201 fixed by this structure will not shake easily, and its stability is higher than that of the manual fixing method.

[0041] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An auxiliary support structure for an endotracheal tube, comprising a support structure slide rail A (1), characterized in that: A supporting structure slide rail B (11) is provided on one side of the supporting structure slide rail A (1), a movable plate (6) is provided between the supporting structure slide rail A (1) and the supporting structure slide rail B (11), a curved plate (13) is provided in front of the movable plate (6), a rotating shaft connecting rod (12) is provided between the curved plate (13) and the movable plate (6), the rotating shaft connecting rod (12) and the movable plate (6) are connected via a rotating shaft, a surface of the rotating shaft connecting rod (12) facing the curved plate (13) is fixed to the curved plate (13), and a surface of the curved plate (13) facing the movable plate (6) is provided with a plurality of tooth grooves (14) arranged in a ring shape; An auxiliary throat opening mechanism (2) is provided above the arc-shaped plate (13). The auxiliary throat opening mechanism (2) comprises an angle adjustment mechanism and a laryngoscope (201). The angle of the laryngoscope (201) can be adjusted in a large or small range as desired by the angle adjustment mechanism.

2. The auxiliary support structure for endotracheal tube according to claim 1, characterized in that: A guide rod (3) is provided on the surface of the support structure slide rail A (1) facing the support structure slide rail B (11) and on the surface of the support structure slide rail B (11) facing the support structure slide rail A (1), and a cervical pillow (4) is provided between the two guide rods (3) and is slidably connected to the two guide rods (3).

3. The auxiliary support structure for endotracheal tube according to claim 1, characterized in that: A connecting rod (7) is fixedly provided on the surface of the movable plate (6) facing the supporting structure slide rail A (1), and an electric slide slidably mounted on the supporting structure slide rail A (1) is connected to the surface of the connecting rod (7) facing the supporting structure slide rail A (1) via a rotating shaft, and a clamping rod (5) is fixedly provided on the surface of the movable plate (6) facing the supporting structure slide rail B (11).

4. The auxiliary support structure for endotracheal tube according to claim 1, characterized in that: A movable rod A (8) is slidably mounted on one side of the upper end surface of the supporting structure slide rail B (11), a connecting rod A (10) is provided inside the movable rod A (8), and a supporting spring is provided between the bottom end of the connecting rod A (10) and the movable rod A (8); A movable rod B (15) is movably mounted on one side of the upper end surface of the supporting structure slide rail A (1), a connecting rod B (16) is arranged inside the movable rod B (15), a lifting rod (9) is fixedly arranged on the upper end surfaces of the connecting rod B (16) and the connecting rod A (10), and the auxiliary throat opening mechanism (2) is mounted at a middle position of the outer surface of the lifting rod (9).

5. The auxiliary support structure for endotracheal tube according to claim 4, characterized in that: A screw rod (17) is provided inside the connecting rod B (16), and an internal threaded through hole (18) penetrating the connecting rod B (16) is provided on the outer side of the screw rod (17) near the bottom end, and the bottom end of the screw rod (17) is connected to the movable rod B (15) via a roller bearing; A circular plate A (19) is fixedly provided on the upper end surface of the screw rod (17), a circular plate B (21) is provided above the screw rod (17), two long rods (20) are symmetrically provided on both sides of the lower end surface of the circular plate B (21) and are movable and vertically penetrate the circular plate A (19), a rotating shaft (27) is fixedly provided at the middle position of the upper end surface of the circular plate B (21), and a rotating handle located on the outer side of the lifting rod (9) is fixedly provided on the upper end surface of the rotating shaft (27).

6. The auxiliary support structure for endotracheal tube according to claim 5, characterized in that: An annular tooth groove (22) is provided on the outer side of the upper end surface of the circular plate B (21), an annular sleeve (23) is provided above the annular tooth groove (22), a circle of sharp tooth heads are arranged in an annular manner on the lower end surface of the annular sleeve (23), and a plurality of sharp tooth grooves matching the sharp tooth heads located on the lower end surface of the annular sleeve (23) are provided inside the annular tooth groove (22).

7. The auxiliary support structure for endotracheal tube according to claim 6, characterized in that: The outer side of the rotating shaft (27) is provided with an internal thread groove (28) located on the outer surface of the lifting rod (9), the internal thread of the internal thread groove (28) is connected with an internal thread sleeve (26), the outer side of the lower end surface of the internal thread sleeve (26) is provided with a roller bearing ring (25), and the four end corners of the lower end surface of the roller bearing ring (25) are fixed with a push rod (24), and the bottom ends of the four push rods (24) are fixed to the annular sleeve (23).

8. The auxiliary support structure for endotracheal tube according to claim 1, characterized in that: The angle adjustment mechanism comprises a laryngoscope clamp (202), a metal rod (203), an arc groove (204), an elastic arc block (205), a stud A (206), a stud B (207), an internal thread sleeve (208), a large bevel gear (209), a small bevel gear (210), a gear transmission shaft (211) and a shaft (212); the laryngoscope (201) is clamped between the two laryngoscope clamps (202); a metal rod (203) is fixedly provided on one side of the outer surface of the second laryngoscope clamp (202) from the left to the right; a circle of arc grooves (204) is provided on the outer surface of the metal rod (203); and an elastic arc block (205) is clamped inside each of the arc grooves (204).

9. The auxiliary support structure for endotracheal tube according to claim 8, characterized in that: A rotating shaft (212) is fixedly provided on one side of the outer surface of the metal rod (203), and a stud A (206) is fixedly provided on the outer surface of the rotating shaft (212), and a stud B (207) is meshed above the stud A (206), and an internal threaded sleeve (208) installed on the lifting rod (9) through a roller bearing is meshed above the stud B (207).

10. The auxiliary support structure for endotracheal tube according to claim 9, characterized in that: A large bevel gear (209) is provided on one side of the stud A (206) and is also fixedly mounted on the outer surface of the laryngoscope clamp (202). The large bevel gear (209) is meshed with a small bevel gear (210). The axis of the small bevel gear (210) is connected to a gear transmission shaft (211). A small angle adjustment rotating handle located on the outside of the lifting rod (9) is fixedly provided on the upper end of the gear transmission shaft (211).

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