Telescopic visual tracheal intubation device for difficult airway
By designing a telescopic visual tracheal intubation device, the structural combination of the insertion guide plate group and the limiting assembly is used to realize the telescopic adjustment and visual insertion of the intubation assembly, solving the problem of inconsistent length in traditional tracheal intubation devices, and improving the convenience and accuracy of intubation operation.
Patent Information
- Application Number
- CN202510519616.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2025-07-22
AI Technical Summary
During use, the traditional tracheal intubation device has different lengths of the inner oral tracheal tubes of each patient, resulting in different lengths of protruding into the pipe, which requires limit adjustments to the pipe, resulting in inconvenient operation.
A telescopic visual tracheal intubation device is designed, and through the structural cooperation of the insertion guide plate group and the insertion limit assembly, the cannula assembly can be telescopic and adjusted according to needs, and image information is provided through the camera assembly to realize the visual insertion of the cannula assembly.
It realizes convenient insertion and fixation of the cannula assembly, improves the convenience and efficiency of cannula operation, and assists in insertion through image information of the camera assembly to ensure the accuracy and stability of the cannula depth.
Smart Images

Figure CN120346413A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of intubation devices, and particularly relates to a retractable and visible tracheal intubation device for difficult airways. Background Art
[0002] Tracheal intubation refers to the technique of inserting a special endotracheal tube into the trachea through the glottis. This technique can provide optimal conditions for airway patency, ventilation and oxygen supply, airway suction, and prevention of aspiration. Tracheal intubation is a commonly used rescue technique during first aid and anesthesia, and is one of the most widely used, effective, and rapid means in airway management. It is a basic skill that medical staff must master proficiently. When performing tracheal intubation on a patient, a tracheal intubation device is usually used. Currently, the tracheal intubation devices for difficult airways in society basically meet people's needs, but there are still some problems.
[0003] During the use of traditional tracheal intubation devices, since the lengths of the tracheas on the inner sides of the mouths of each patient are different, the inserted lengths are also different, so the pipeline needs to be limited and adjusted. For this reason, the present application proposes a retractable and visible tracheal intubation device for difficult airways, providing a new technical solution to solve the above-mentioned technical problems. Summary of the Invention
[0004] Based on this, in view of the above technical problems, it is necessary to provide a retractable and visible tracheal intubation device for difficult airways. Through the structural cooperation design of the insertion guide plate group and the insertion limit component, the intubation component can be retractably adjusted according to the usage requirements, so that the insertion depth of the intubation component can be adjusted according to the needs. Moreover, through the camera component, image information can be provided, thereby making the insertion of the intubation component visual, and making the insertion of the intubation component more convenient and rapid.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0006] A retractable and visible tracheal intubation device for difficult airways, which is applied to tracheal intubation for difficult airways.
[0007] The retractable and visible tracheal intubation device for difficult airways specifically includes:
[0008] An intubation component, the intubation component includes an intubation main body, and a balloon is arranged on the outer side of the insertion end of the intubation main body; a fixing block is fixedly connected to the inner wall of the intubation main body, and a camera component is fixedly connected to the middle of the fixing block;
[0009] An insertion guide plate group, which is arranged on the outer side of the intubation component and at one end far from the insertion end of the intubation main body;
[0010] An insertion limiting component is provided, which is arranged in the middle of the insertion guiding plate group. The intubation component is located in the middle of the insertion limiting component, and the insertion limiting component is detachably connected to the intubation component;
[0011] The insertion limiting component includes a limiting annular frame. The upper and lower ends of the limiting annular frame extend to the outside of the upper and lower ends of the insertion guiding plate group. An insertion through groove 1 is provided in the middle of the limiting annular frame for the insertion of the intubation component. A plurality of limiting sliders are arranged in a circular array around the insertion through groove 1 at the upper end of the limiting annular frame. The limiting sliders are slidably connected to the limiting annular frame. An adjusting annular frame is threadedly connected to the outer side of the upper part of the limiting annular frame. An insertion through groove 2 is provided in the middle of the adjusting annular frame for the insertion of the intubation component. When the adjusting annular frame rotates, it can drive the limiting sliders to move towards the axial center direction of the insertion through groove 1;
[0012] A connection through groove is provided in the middle of the insertion guiding plate group. The limiting annular frame is threadedly connected to the insertion guiding plate group through the connection through groove. Strap components are movably connected to both sides of the insertion guiding plate group. Strap connection grooves are provided at the ends of the insertion guiding plate group. The strap components are movably connected to the insertion guiding plate group through the strap connection grooves. Adhesion components are provided at the lower ends of both sides of the insertion guiding plate group. Both the strap components and the adhesion components are used for fixing the insertion guiding plate group to the patient's face.
[0013] As a preferred embodiment of the retractable visible tracheal intubation device for difficult airways provided by the present invention, the limiting slider includes a slider main body. A slider limiting plate is fixedly connected to the bottom of the slider main body. A connection sliding groove is provided at the top of the limiting annular frame. Both the slider main body and the slider limiting plate are slidably connected to the connection sliding groove. A slider top plate is fixedly connected to one end of the slider main body close to the insertion through groove 1. A top plate protective cover is snap-connected to the outside of the slider top plate. A linkage rod is fixedly connected to the top of the slider main body. The linkage rod is cooperatively connected with the adjusting annular frame.
[0014] As a preferred embodiment of the retractable visible tracheal intubation device for difficult airways provided by the present invention, both ends of the top plate protective cover are snap-connected to the ends of the slider top plate. Anti-deviation blocks are fixedly connected to the inner sides of the ends of the top plate protective cover. Anti-deviation grooves are provided at the ends of the slider top plate. The anti-deviation blocks are located inside the anti-deviation grooves.
[0015] As a preferred embodiment of the retractable and visible tracheal intubation device for difficult airways provided by the present invention, a plurality of push grooves are formed in a circular array around the second insertion through groove at the inner top of the adjusting ring frame. The number of the push grooves corresponds to the number of the limit sliders. The cross section of the push groove is arc-shaped. The linkage rod is inserted into the inner side of the push groove. When the adjusting ring frame rotates, the linkage rod can be driven to move towards the first insertion through groove through the push groove.
[0016] As a preferred embodiment of the retractable and visible tracheal intubation device for difficult airways provided by the present invention, the adhesion assembly includes a medical double-sided tape, which is arranged in a V shape, adhesively fixed to the insertion guide plate group, and a protective sheet is adhesively fixed to the side of the medical double-sided tape away from the insertion guide plate group.
[0017] As a preferred embodiment of the retractable and visible tracheal intubation device for difficult airways provided by the present invention, a removal tab is arranged at the end angle of the protective sheet, which extends to the outside of the medical double-sided tape, and the removal tab is integrally provided with the protective sheet.
[0018] As a preferred embodiment of the retractable and visible tracheal intubation device for difficult airways provided by the present invention, a protective ring frame is sleeved on the part of the limit ring frame below the insertion guide plate group.
[0019] As a preferred embodiment of the retractable and visible tracheal intubation device for difficult airways provided by the present invention, the protective ring frame is made of silicone.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] The retractable and visible tracheal intubation device for difficult airways provided by the present invention, through the structural cooperation design of the insertion guide plate group and the insertion limit assembly, enables the intubation assembly to be telescopically adjusted according to the use requirements, so that the insertion depth of the intubation assembly can be adjusted according to the needs, and the image information can be provided by the camera assembly, thereby making the insertion of the intubation assembly visual and making the insertion of the intubation assembly more convenient and fast.
[0022] The retractable and visible tracheal intubation device for difficult airways provided by the present invention, through the structural design of the insertion limit assembly, enables the device to conveniently and quickly limit and fix the intubation assembly, effectively improving the convenience and fixing efficiency when the intubation assembly is fixed. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] To more clearly illustrate the solutions in the present invention, the following will give a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0024] Figure 1 Schematic diagram of the overall structure of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0025] Figure 2 Front view of the overall structure of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0026] Figure 3 Schematic diagram of the insertion guide plate group and insertion limit assembly of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0027] Figure 4 Schematic diagram of the insertion limit assembly of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0028] Figure 5 Schematic diagram of the connection structure of the limit ring frame and limit slider of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0029] Figure 6 Schematic diagram of the limit slider of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0030] Figure 7 Bottom view of the structure of the adjustment ring frame of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0031] Figure 8 Schematic diagram of the intubation assembly of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0032] Figure 9 Schematic diagram of the internal structure of the intubation main body of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0033] Figure 10 Schematic diagram of the insertion guide plate group of the retractable and visible tracheal intubation device for difficult airways provided by the present invention;
[0034] Figure 11 Schematic diagram of the adhesion assembly of the retractable and visible tracheal intubation device for difficult airways provided by the present invention.
[0035] The markings in the figures are explained as follows:
[0036] 1. Intubation assembly; 2. Insertion guiding plate group; 3. Insertion limiting assembly; 4. Limiting annular frame; 5. First insertion through slot; 6. Limiting slider; 7. Adjusting annular frame; 8. Second insertion through slot; 9. Protective annular frame; 10. Connection sliding groove; 11. Slider body; 12. Slider limiting plate; 13. Slider top plate; 14. Top plate protective sleeve; 15. Anti-deviation block; 16. Anti-deviation groove; 17. Linking rod; 18. Pushing groove; 19. Intubation main body; 20. Balloon; 21. Fixed block; 22. Camera assembly; 23. Connection through slot; 24. Bandage assembly; 25. Bandage connection slot; 26. Adhesion assembly; 27. Medical double-sided tape; 28. Protective sheet; 29. Demolition tab. Detailed implementation manners
[0037] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0038] As described in the background art, in the process of using traditional tracheal intubation devices, since the lengths of the tracheas on the inner side of the oral cavity of each patient are different, the inserted lengths are also different, so the pipeline needs to be limited and adjusted.
[0039] To solve this technical problem, the present invention provides a retractable and visible tracheal intubation device for difficult airways, which is applied to tracheal intubation for difficult airways.
[0040] Specifically, please refer to Figure 1 - Figure 10 , the retractable and visible tracheal intubation device for difficult airways specifically includes:
[0041] The intubation assembly 1, the intubation assembly 1 includes an intubation main body 19, and a balloon 20 is arranged on the outer side of the insertion end of the intubation main body 19; a fixed block 21 is fixedly connected to the inner wall of the intubation main body 19, and a camera assembly 22 is fixedly connected to the middle of the fixed block 21;
[0042] The insertion guiding plate group 2, which is arranged on the outer side of the intubation assembly 1 and at the end far from the insertion end of the intubation main body 19;
[0043] The insertion limiting assembly 3, which is arranged in the middle of the insertion guiding plate group 2, the intubation assembly 1 is located in the middle of the insertion limiting assembly 3, and the insertion limiting assembly 3 is detachably connected to the intubation assembly 1;
[0044] The insertion limiting component 3 includes a limiting annular frame 4. Both the upper and lower ends of the limiting annular frame 4 extend to the outside of the upper and lower ends of the insertion guiding plate group 2. An insertion through groove 5 is formed in the middle of the limiting annular frame 4 for the insertion of the intubation component 1. A plurality of limiting sliders 6 are arranged in a circular array around the insertion through groove 5 at the upper end of the limiting annular frame 4. The limiting sliders 6 are slidably connected to the limiting annular frame 4. An adjusting annular frame 7 is threadedly connected to the outer side of the upper part of the limiting annular frame 4. An insertion through groove 8 is formed in the middle of the adjusting annular frame 7 for the insertion of the intubation component 1. When the adjusting annular frame 7 rotates, it can drive the limiting sliders 6 to move towards the axial center direction of the insertion through groove 5;
[0045] A connection through groove 23 is formed in the middle of the insertion guiding plate group 2. The limiting annular frame 4 is threadedly connected to the insertion guiding plate group 2 through the connection through groove 23. Strap assemblies 24 are movably connected to both sides of the insertion guiding plate group 2. Strap connection grooves 25 are formed at the ends of the insertion guiding plate group 2. The strap assemblies 24 are movably connected to the insertion guiding plate group 2 through the strap connection grooves 25. Adhesive assemblies 26 are arranged at the lower ends of both sides of the insertion guiding plate group 2. Both the strap assemblies 24 and the adhesive assemblies 26 are used for fixing the insertion guiding plate group 2 to the patient's face.
[0046] For the retractable and visual tracheal intubation device for difficult airways provided by the present invention, through the structural cooperation design of the insertion guiding plate group 2 and the insertion limiting component 3, the intubation component 1 can be telescopically adjusted according to the usage requirements, so that the insertion depth of the intubation component 1 can be adjusted according to the needs. Moreover, through the camera component 22, image information can be provided, and further the insertion of the intubation component 1 is visualized, making the insertion of the intubation component 1 more convenient and fast.
[0047] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings.
[0048] Embodiment 1:
[0049] Please refer to Figure 1 - Figure 10 A retractable and visual tracheal intubation device for difficult airways, which includes:
[0050] An intubation component 1, the intubation component 1 includes an intubation main body 19, and an airbag 20 is arranged on the outer side of the insertion end of the intubation main body 19; a fixing block 21 is fixedly connected to the inner wall of the intubation main body 19, and a camera component 22 is fixedly connected to the middle of the fixing block 21; through the camera component 22, image information can be obtained when the intubation main body 19 is inserted, and further the insertion of the intubation main body 19 is more convenient;
[0051] Insert a guiding plate group 2, which is arranged outside the intubation assembly 1 and at one end far from the insertion end of the intubation main body 19; the guiding and limiting of the insertion of the intubation main body 19 can be realized through the guiding plate group 2;
[0052] Insert a limiting assembly 3, which is arranged in the middle of the guiding plate group 2. The intubation assembly 1 is located in the middle of the limiting assembly 3, and the limiting assembly 3 is detachably connected to the intubation assembly 1;
[0053] Specifically, the limiting assembly 3 includes a limiting ring frame 4. The upper and lower ends of the limiting ring frame 4 extend to the outside of the upper and lower ends of the guiding plate group 2. An insertion through groove 5 is formed in the middle of the limiting ring frame 4 for the insertion of the intubation assembly 1. A plurality of limiting sliders 6 are arranged in a circular array around the insertion through groove 5 at the upper end of the limiting ring frame 4. The limiting sliders 6 are slidably connected to the limiting ring frame 4. An adjusting ring frame 7 is threadedly connected to the outer side of the upper part of the limiting ring frame 4. An insertion through groove 8 is formed in the middle of the adjusting ring frame 7 for the insertion of the intubation assembly 1. When the adjusting ring frame 7 rotates, it can drive the limiting sliders 6 to move towards the axial center direction of the insertion through groove 5;
[0054] Specifically, the limiting slider 6 includes a slider main body 11. A slider limiting plate 12 is fixedly connected to the bottom of the slider main body 11. A connecting sliding groove 10 is formed at the top of the limiting ring frame 4. The slider main body 11 and the slider limiting plate 12 are both slidably connected to the connecting sliding groove 10. A slider top plate 13 is fixedly connected to one end of the slider main body 11 close to the insertion through groove 5. A top plate protective sleeve 14 is snap-connected to the outside of the slider top plate 13. A linkage rod 17 is fixedly connected to the top of the slider main body 11. The linkage rod 17 is cooperatively connected with the adjusting ring frame 7.
[0055] Furthermore, both ends of the top plate protective sleeve 14 are snap-connected to the ends of the slider top plate 13. An anti-deviation block 15 is fixedly connected to the inner side of the end of the top plate protective sleeve 14. An anti-deviation groove 16 is formed at the end of the slider top plate 13. The anti-deviation block 15 is located inside the anti-deviation groove 16. Through the cooperation of the anti-deviation block 15 and the anti-deviation groove 16, the phenomenon of the up and down sliding of the top plate protective sleeve 14 can be effectively avoided.
[0056] Furthermore, a pushing groove 18 is formed in a circular array around the insertion through groove 8 at the inner top of the adjusting ring frame 7. The number of the pushing grooves 18 corresponds to the number of the limiting sliders 6. The cross section of the pushing groove 18 is arc-shaped. The linkage rod 17 is inserted into the inner side of the pushing groove 18. When the adjusting ring frame 7 rotates, it can drive the linkage rod 17 to move towards the insertion through groove 5 through the pushing groove 18.
[0057] It can be seen that after the intubation assembly 1 is inserted into the insertion limiting assembly 3, the insertion depth of the intubation assembly 1 can be adjusted according to requirements. After the intubation assembly 1 is inserted to an appropriate depth, rotating the adjusting ring frame 7 can make the linkage rod 17 slide along the pushing groove 18. Through the limitation of the limiting slider 6 by the connecting chute 10, the linkage rod 17 pushes the slider main body 11 to move in the connecting chute 10 towards the direction of the insertion through groove 1. Through the movement of the slider main body 11, the slider top plate 13 at the end of the slider main body 11 squeezes the intubation assembly 1, thereby realizing the limit fixation of the intubation assembly 1. The top plate protective sleeve 14 can effectively increase the friction between the slider top plate 13 and the intubation assembly 1.
[0058] Specifically, a connecting through groove 23 is provided in the middle of the insertion guiding plate group 2. The limiting ring frame 4 is threadedly connected to the insertion guiding plate group 2 through the connecting through groove 23. Both sides of the insertion guiding plate group 2 are movably connected with a strap assembly 24. A strap connecting groove 25 is provided at the end of the insertion guiding plate group 2. The strap assembly 24 is movably connected to the insertion guiding plate group 2 through the strap connecting groove 25. Adhesion assemblies 26 are provided at the lower ends of both sides of the insertion guiding plate group 2. Both the strap assembly 24 and the adhesion assemblies 26 are used for fixing the insertion guiding plate group 2 to the patient's face.
[0059] The insertion guiding plate group 2 can be bound to the patient's face through the strap assembly 24, and the insertion guiding plate group 2 can be adhesively fixed to the patient's face through the adhesion assemblies 26. Thus, the insertion guiding plate group 2 is initially positioned and fixed to the patient's face through the adhesion assemblies 26. Then, the insertion guiding plate group 2 is bound to the patient's face through the strap assembly 24, thereby achieving the effect of double limitation, and further effectively ensuring the stability of the insertion guiding plate group 2.
[0060] Embodiment 2:
[0061] The retractable and visible tracheal intubation device for difficult airways provided in Embodiment 1 is further optimized. Specifically, as Figure 4 shown, a protective ring frame 9 is sleeved on the part of the limiting ring frame 4 located below the insertion guiding plate group 2. Further, the material of the protective ring frame 9 is silicone.
[0062] Through the above structural design, the patient's oral cavity can be protected by the protective ring frame 9.
[0063] Embodiment 3:
[0064] The retractable and visible tracheal intubation device for difficult airways provided in Embodiment 1 is further optimized. Specifically, as Figure 11As shown, the adhesion assembly 26 includes a medical double-sided tape 27, the medical double-sided tape 27 is arranged in a V shape, the medical double-sided tape 27 is adhesively fixed to the insertion guide plate group 2, and a protective sheet 28 is adhesively fixed to the side of the medical double-sided tape 27 away from the insertion guide plate group 2. Specifically, a removal tab 29 is provided at the end corner of the protective sheet 28, the removal tab 29 extends to the outside of the medical double-sided tape 27, and the removal tab 29 is integrally provided with the protective sheet 28.
[0065] Through the above structural design, before the insertion guide plate group 2 is fixed to the patient's face, the protective sheet 28 is removed, so that the lower part of the medical double-sided tape 27 is exposed, and then the lower part of the medical double-sided tape 27 is adhered to the patient's face. The protective sheet 28 can effectively protect the lower part of the medical double-sided tape 27 before use.
Claims
1. A retractable and visible tracheal intubation device for difficult airways, characterized in that, Comprising: An intubation assembly (1), the intubation assembly (1) includes an intubation main body (19), and an outer side of an insertion end of the intubation main body (19) is provided with a balloon (20); a fixing block (21) is fixedly connected to an inner wall of the intubation main body (19), and a camera assembly (22) is fixedly connected to a middle part of the fixing block (21); An insertion guiding plate group (2), which is arranged at an end of the intubation assembly (1) away from the insertion end of the intubation main body (19); An insertion limiting assembly (3), which is arranged in the middle of the insertion guiding plate group (2), the intubation assembly (1) is located in the middle of the insertion limiting assembly (3), and the insertion limiting assembly (3) is detachably connected to the intubation assembly (1); The insertion limiting assembly (3) includes a limiting annular frame (4), upper and lower ends of the limiting annular frame (4) both extend to outer sides of upper and lower ends of the insertion guiding plate group (2), a first insertion through groove (5) is formed in a middle part of the limiting annular frame (4) for the insertion of the intubation assembly (1), a plurality of limiting sliders (6) are arranged in an annular array around the first insertion through groove (5) at an upper end of the limiting annular frame (4), the limiting sliders (6) are slidably connected to the limiting annular frame (4), an adjusting annular frame (7) is threadedly connected to an outer side of an upper part of the limiting annular frame (4), a second insertion through groove (8) is formed in a middle part of the adjusting annular frame (7) for the insertion of the intubation assembly (1), and when the adjusting annular frame (7) rotates, it can drive the limiting sliders (6) to move towards the axial center direction of the first insertion through groove (5); A connection through groove (23) is formed in a middle part of the insertion guiding plate group (2), the limiting annular frame (4) is threadedly connected to the insertion guiding plate group (2) through the connection through groove (23), both sides of the insertion guiding plate group (2) are movably connected with strap assemblies (24), a strap connection groove (25) is formed at an end of the insertion guiding plate group (2), the strap assemblies (24) are movably connected to the insertion guiding plate group (2) through the strap connection groove (25), adhesion assemblies (26) are arranged at lower ends of both sides of the insertion guiding plate group (2), and both the strap assemblies (24) and the adhesion assemblies (26) are used for fixing the insertion guiding plate group (2) to a patient's face.
2. The retractable and visible tracheal intubation device for difficult airways according to claim 1, characterized in that, The limiting slider (6) includes a slider main body (11), a slider limiting plate (12) is fixedly connected to a bottom of the slider main body (11), a connection sliding groove (10) is formed at a top of the limiting annular frame (4), both the slider main body (11) and the slider limiting plate (12) are slidably connected to the connection sliding groove (10), a slider top plate (13) is fixedly connected to an end of the slider main body (11) close to the first insertion through groove (5), a top plate protective cover (14) is snap-connected to an outer side of the slider top plate (13), and a linkage rod (17) is fixedly connected to a top of the slider main body (11), and the linkage rod (17) is cooperatively connected with the adjusting annular frame (7).
3. The retractable and visible tracheal intubation device for difficult airway according to claim 2, wherein Both ends of the top plate protective sleeve (14) are snap-connected to the ends of the slider top plate (13). An anti-deviation block (15) is fixedly connected to the inner side of the end of the top plate protective sleeve (14). An anti-deviation groove (16) is formed at the end of the slider top plate (13). The anti-deviation block (15) is located inside the anti-deviation groove (16).
4. The retractable and visible tracheal intubation device for difficult airways according to claim 2, wherein At the inner top of the adjusting annular frame (7), a plurality of pushing grooves (18) are formed in an annular array around the insertion through groove two (8). The number of the pushing grooves (18) corresponds to the number of the limiting sliders (6). The cross section of the pushing groove (18) is arc-shaped. The linkage rod (17) is inserted into the inner side of the pushing groove (18). When the adjusting annular frame (7) rotates, the linkage rod (17) can be driven to move towards the insertion through groove one (5) through the pushing groove (18).
5. The retractable and visible tracheal intubation device for difficult airway according to claim 1, characterized in that, The adhesion assembly (26) includes a medical double-sided adhesive (27). The medical double-sided adhesive (27) is V-shaped. The medical double-sided adhesive (27) is adhesively fixed to the insertion guide plate group (2). A protective sheet (28) is adhesively fixed to the side of the medical double-sided adhesive (27) away from the insertion guide plate group (2).
6. The retractable and visible tracheal intubation device for difficult airway according to claim 5, characterized in that, Demolition tabs (29) are arranged at the end corners of the protective sheet (28). The demolition tabs (29) extend to the outside of the medical double-sided adhesive (27). The demolition tabs (29) are integrally provided with the protective sheet (28).
7. The retractable and visible tracheal intubation device for difficult airways according to claim 1, wherein, A protective annular frame (9) is sleeved on the part of the limiting annular frame (4) below the insertion guide plate group (2).
8. The retractable and visible tracheal intubation device for difficult airways according to claim 7, characterized in that, The protective annular frame (9) is made of silicone.