Oral tracheal intubation guiding device for fiber bronchoscope

Abstract

The invention discloses a fiber bronchoscope oral trachea cannula guiding device, which relates to the related field of clinical anesthesiology, and comprises a fiber bronchoscope body (1), a handle (2) arranged at the right end of the fiber bronchoscope body (1), a fixer (8) for keeping the mouth open and providing an operation space, and an expansion air bag (15) arranged outside the left end of a trachea body (3), and small air bags (17) which are locally expanded and guided are arranged in the expansion air bag (15) at equal angles. In the using process of the fiber bronchoscope oral trachea cannula guiding device, the guiding device can be better attached to the oral cavity through the arrangement of the waist drum-shaped fixing device, the guiding device can be better attached to the mouth of a patient through the arrangement of the sealing bag, pollution caused by saliva flowing out is prevented, meanwhile, the expanding air bag and the small air bag are adopted, and the guiding device is convenient to use. Under the condition that the position of the trachea is fixed, the use angle can be conveniently adjusted, and injury to a patient due to displacement of the tracheal catheter is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of clinical anesthesiology, and particularly relates to a fibrobronchoscope oral trachea cannula guide. BACKGROUND

[0002] In the medical field, trachea cannula, as a key operation, is widely used in surgical clinical anesthesia, emergency resuscitation and intensive care, etc. The fibrobronchoscope plays an important role in the trachea cannula process due to its small lumen, softness, bendability, strong light guiding capability and clear vision, etc. Doctors can directly observe the trachea, bronchial opening and mucosa condition with the help of the fibrobronchoscope, which greatly improves the accuracy and safety of cannula. When the fibrobronchoscope is used for examination, the patient is in a state of general anesthesia, the muscles are relaxed, the tongue root is dropped back, the oral cavity channel is narrow, and the patient is difficult to control the mouth for a long time, which makes it difficult to insert the trachea guide tube, prolongs the cannula time, and is not conducive to the examination of the patient.

[0003] To solve the above defects, the prior art (Chinese patent with publication number CN218552864U and publication date of March 3, 2023) discloses a fibrobronchoscope oral trachea cannula guide. The expansion plate is adjusted by the lead screw in the expansion structure, so that the patient's mouth can be expanded, which facilitates the medical staff to insert the guide tube into the patient's body, thereby reducing the insertion time and facilitating the medical staff to examine the patient. The fibrobronchoscope oral trachea cannula guide, by setting the guide tube and the pushing part, the position of the guide tube can be adjusted, which can avoid the bending of the guide tube due to uneven force when the guide tube is manually pushed, thereby avoiding injury to the trachea.

[0004] The prior art (Chinese patent with publication number CN111921053A and publication date of November 13, 2020) discloses a fibrobronchoscope oral trachea cannula guide. The rubber cotton, the driving block, the supporting spring and the fixed block are arranged. The fixed buckle is sent into the patient's oral cavity by the staff. The upper and lower jaws of the patient are clamped by the rubber cotton. The teeth are supported by the upper and lower groups of rubber cotton under the driving of the driving block and the support of the fixed block. The teeth of the patient are supported by the rubber cotton, so that the trachea body is fixed, the trachea cannula guide is conveniently fixed, and the pain of the patient is reduced.

[0005] During operation, the above-mentioned solution is only placed in the oral cavity through a flat or simple arc-shaped structure, and there is a large gap between the patient and the oral vestibule, tongue and other tissues. When the patient is in anesthesia or coma, the swallowing reflex is weakened, and saliva is easily accumulated in the gap after secretion and flows out along the corners of the mouth, which not only contaminates the surgical area but also may cause the risk of aspiration. In addition, the existing solution uses a single central airbag, which is fixed by inflating and squeezing the top wall of the oral cavity. However, the torque generated by the single airbag is concentrated on the midline, and the ability to adjust the left and right deviation or the front and back pitch angle is limited. The guide needs to be manually rotated, which can easily cause the tracheal tube to shift. Summary of the Invention

[0006] The purpose of the invention is to provide a fiber bronchoscope oral endotracheal intubation guide to solve the problem of the existing fiber bronchoscope oral endotracheal intubation guide proposed in the above background technology. During use, the guide is placed in the oral cavity through a flat plate or a simple arc structure. After saliva is secreted, it is easy to accumulate in the gap and flow out along the corners of the mouth. At the same time, the torque generated by a single airbag is concentrated on the midline, and the ability to adjust the left and right deflection or the front and back pitch angles is limited. The guide needs to be rotated manually, which can easily lead to the problem of endotracheal tube displacement.

[0007] To achieve the above-mentioned purpose, the technical idea adopted by the invention is: in order to solve the problem in the prior art that there is a gap between the guide and the oral cavity, saliva is easily accumulated in the gap after secretion and flows out along the corners of the mouth, this solution adopts a waist drum-shaped fixator in contact with the oral cavity, and with the setting of a sealing bag, it can well fill the gap between the mouth and the fixator, effectively preventing saliva from flowing out and causing pollution. At the same time, in order to improve the flexibility during use, by setting the expansion airbag and the small airbag, while fixing the trachea, local adjustment can also be performed, which is convenient for adjusting the use angle, easy to operate and less harmful to the patient.

[0008] Based on the above technical ideas, the technical solution adopted by the present invention is: A fiber bronchoscope peroral tracheal intubation guide comprises a fiber bronchoscope body, a handle is installed at the right end of the fiber bronchoscope body, a tracheal body is installed at the left side of the handle, and a lens is fixed at the left end of the fiber bronchoscope body.

[0009] The fixator is set on the left side of the handle. The fixator is placed in the patient's mouth to keep the mouth open to provide operating space.

[0010] The expansion airbag is installed on the left end of the tracheal body. The expansion airbag fixes the tracheal body to facilitate patient examination. The interior of the expansion airbag is provided with small airbags with local expansion guides at equal angles. The small airbags can be partially expanded to adjust the use angle. The anti-slip plate is symmetrically slidably connected to the bottom of the handle, and an arc-shaped recess is provided between the opposite surfaces of the handle to facilitate finger gripping.

[0011] To further limit the above technical solution, an inner cavity is opened inside the fixator, and a movable piece is provided at a middle angle of the inner cavity. The fixator as a whole is configured as a waist drum-shaped structure with a narrow middle portion and wide ends.

[0012] Further limitation of the above technical solution is that the movable piece is set as a curved structure, the movable piece is connected to the inner wall of the inner cavity through the second spring, a rubber pad is provided at the concave part outside the fixer, and the movable piece forms an elastic sliding structure through the second spring.

[0013] To further limit the above technical solution, air storage bags are fixed at equal angles inside the inner cavity, and the movable sheet in the inner cavity is in compression contact with the air storage bags.

[0014] Further limitation of the above technical solution is that the sealing capsule is installed on the left side outside of the holder, fills the gap between the holder and the mouth, and is set as an annular structure.

[0015] Further limitation of the above technical solution: the first connecting tube is used to connect the air storage bag and the sealing bag, and the air storage bag is set to a strip structure.

[0016] A further limitation of the above technical solution is that the expansion airbag is set as a circular ring structure, the expansion airbag is connected to the second connecting tube, and the second connecting tube passes through the inner wall of the trachea body and extends to the right side of the handle.

[0017] Further limitation of the above technical solution: the small air bag is set as an arc-shaped structure, and each small air bag is connected to a corresponding third connecting tube. The third connecting tube passes through the inner wall of the trachea body at equal angles and extends to the right side of the handle. The right end of the second connecting tube and the third connecting tube is provided with a charging and discharging port, and the corresponding charging and discharging port is inflated and deflated as needed.

[0018] A further limitation of the above technical solution is that the anti-slip plate has its bottom slidably connected to the top of the bottom bracket, and the area of ​​the bottom bracket is larger than the area of ​​the bottom of the anti-slip plate.

[0019] To further limit the above technical solution, a first spring is provided between the anti-slip plate and the bottom of the handle, and between the anti-slip plate and the top of the base, and the anti-slip plate forms a fixed anti-slip structure through the first spring.

[0020] To further limit the above technical solution, a liquid suction channel is opened on the left and right sides of the bottom of the second connecting tube, a discharge pipe is connected to the bottom right of the liquid suction channel, the discharge pipe is connected to the negative pressure adsorption equipment, the left side of the liquid suction channel is interconnected with the interception chamber, the cross-sectional area of ​​the interception chamber is twice that of the liquid suction channel, the inner top of the interception chamber is connected to the sealing plate through a third spring, the cross-sectional area of ​​the sealing plate is equal to the area of ​​the liquid suction channel, and a connecting rod is integrally installed on the bottom of the sealing plate, which is connected to the bottom of the second connecting tube and contacts the movable sheet.

[0021] Compared with the prior art, the beneficial effects of the invention are: (1) Small contamination due to fitting and sealing: When the retainer is placed in the patient's mouth, the teeth will resist the inner concave part of the retainer, thereby squeezing the movable piece. The movable piece will compress the second spring and move downward in the inner cavity. At the same time, the elastic force of the second spring will move left and right, and the movable piece will also provide an expansion tension to the mouth, keeping the patient's mouth in a good operating state. When the movable piece moves downward, it will squeeze the air storage bag. After the air storage bag is compressed, the gas inside will be transported to the sealing bag through the first connecting tube. After the sealing bag expands, it will seal the contact edge between the retainer and the mouth to prevent saliva from flowing out and causing contamination.

[0022] (2) Convenient fixation: The retainer is placed in the patient's mouth, and the patient's teeth and lips are covered by the outer concave part of the retainer, thereby stretching the mouth to provide operating space. The retainer is narrow in the middle and wide on both sides, so that when it is in the patient's mouth, it can better fit the patient's mouth and be quickly fixed to the mouth.

[0023] (3) Angle adjustment: The expansion balloon is inflated through the charging and discharging port on the second connecting tube. After the expansion balloon is inflated, the trachea body is fixed, so that the tracheal intubation guide can be conveniently inserted under the adjustment of the driving end of the fiber bronchoscope body, thereby improving the convenience of using the tracheal intubation guide. At the same time, when the angle needs to be adjusted during the operation, the charging and discharging port on the corresponding third connecting tube is inflated, and then the small balloon at the corresponding position is inflated. After the small balloon is inflated, the deflection angle of the trachea body is changed, thereby conveniently obtaining the operation field of view.

[0024] (4) Stable grip: When the fingers pass through the anti-slip plates, the anti-slip plates will separate from each other and then slide at the bottom of the handle and the top of the base, thereby compressing the first spring. At the same time, the first spring will also generate a thrust on the anti-slip plate, allowing the doctor to hold it more stably and prevent the hand from slipping due to fatigue.

[0025] (5) Avoid obstruction: When the movable sheet is under pressure, it squeezes the connecting rod, which drives the sealing plate to slide in the interception cavity, thereby compressing the third spring, thereby opening the suction channel and connecting the discharge tube to the negative pressure equipment, so as to absorb the patient's saliva in time to avoid it filling the mouth and affecting the doctor's operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the invention; Figure 2 This is a schematic diagram of the front cross-section of the invented knot handle; Figure 3 A schematic diagram of the structure of the invented fixator is shown in the front view; Figure 4 This is a schematic diagram of the front cross-section structure of the invented fixator; Figure 5 This is a schematic diagram of the front cross-section structure of the movable plate and the inner cavity of the invention; Figure 6 Schematic diagram of the structure of the air storage bag, the first connecting tube and the sealing bag; Figure 7 This is a schematic diagram of the structure of the invention's expansion airbag; Figure 8 This is a schematic diagram of the invented handle and trachea structure; Figure 9 This is a schematic diagram of the structure of the invention's expansion airbag, third connecting tube, and charging and discharging port; Figure 10 Schematic diagram of the distribution structure of the expanded airbag and small airbags; Figure 11 This is a bottom view of the structure of the liquid suction channel, discharge pipe and connecting rod of the present invention; Figure 12 This is a schematic diagram of the structure of the liquid suction channel, sealing plate, third spring and connecting rod in a front cross-section and separated state according to the present invention.

[0027] In the figure: 1. Fiber bronchoscope body; 2. Handle; 3. Tracheal body; 4. Lens; 5. Anti-slip plate; 6. Bottom support; 7. First spring; 8. Fixer; 9. Inner cavity; 10. Movable plate; 11. Second spring; 12. Air storage bag; 13. First connecting tube; 14. Sealing bag; 15. Expansion bag; 16. Second connecting tube; 17. Small bag; 18. Third connecting tube; 19. Charging and discharging port; 20. Suction channel; 21. Discharge tube; 22. Intercepting cavity; 23. Third spring; 24. Sealing plate; 25. Connecting rod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] Example 1: Please refer to Figures 1-2 、 Figure 6 and Figure 10 As shown, the invention provides the following technical solutions: a fiber bronchoscope oral tracheal intubation guide, comprising a fiber bronchoscope body 1, a handle 2 is installed at the right end of the fiber bronchoscope body 1, a tracheal body 3 is installed at the left side of the handle 2, a lens 4 is fixed at the left end of the fiber bronchoscope body 1, a fixer 8, the fixer 8 is arranged on the left outside of the handle 2, the fixer 8 is placed in the patient's mouth, and the mouth is kept open to provide operation space, an expansion airbag 15, the expansion airbag 15 is installed on the left end outside of the tracheal body 3, the expansion airbag 15 fixes the tracheal body 3 to facilitate examination of the patient, a small airbag 17 for local expansion guidance is arranged at equal angles inside the expansion airbag 15, the small airbag 17 can be locally expanded to adjust the use angle, an anti-slip plate 5, the anti-slip plate 5 is symmetrically slidably connected to the bottom of the handle 2, and an arc-shaped recess for easy finger grip is provided between the opposite surfaces of the handle 2.

[0030] During use, the waist drum-shaped fixer 8 at the left end of the handle 2 can better fit the oral cavity, and the sealing bag 14 can make the guide better fit the patient's mouth to prevent saliva from flowing out and causing contamination. The tracheal body 3 is inserted into the oral cavity, and the lens 4 on the fiber bronchial body 1 is used to view the patient's lesions. The expansion air bag 15 and the small air bag 17 are used to ensure that the position of the tracheal body 3 is fixed. The use angle can be easily adjusted to avoid the displacement of the tracheal body 3 catheter and cause harm to the patient. At the same time, the anti-slip plate 5 and the arc-shaped recess can improve the stability of holding when holding.

[0031] refer to Figures 4-6 As shown, in the embodiment of the present invention, an inner cavity 9 is opened inside the fixator 8, and a movable piece 10 is provided at a medium angle in the inner cavity 9. The fixator 8 is configured as a waist drum-shaped structure with a narrow middle portion and wide ends. The outer left end of the fixator 8 contacts the patient's mouth, and the lips cover the outer middle portion of the fixator 8.

[0032] When in use, the retainer 8 is placed in the patient's mouth, and the patient's teeth and lips are covered by the outer concave part of the retainer 8, thereby stretching the mouth to provide operating space. The retainer 8 is narrow in the middle and wide on both sides, so that when in the patient's mouth, it can better fit the patient's mouth.

[0033] refer toFigures 4-6 As shown, in an embodiment of the present invention, the movable sheet 10 is configured as a curved surface structure, the movable sheet 10 is connected to the inner wall of the inner cavity 9 through a second spring 11, a rubber pad is provided at the outer concave portion of the retainer 8, and the movable sheet 10 forms an elastic sliding structure through the second spring 11.

[0034] During use, when the retainer 8 is placed in the patient's mouth, the teeth will resist the concave part of the retainer 8, thereby squeezing the movable piece 10. The movable piece 10 will compress the second spring 11 and move downward in the inner cavity 9. At the same time, the elastic force of the second spring 11 will move left and right, and the movable piece 10 will also provide an expansion tension to the mouth, keeping the patient's mouth in a good operating state.

[0035] refer to Figure 1 and Figures 3-6 As shown, in an embodiment of the present invention, an air bag 12 is fixed at an equal angle inside the inner cavity 9, and the movable sheet 10 in the inner cavity 9 is in squeeze contact with the air bag 12. A sealing bag 14 is installed on the left side outside of the holder 8. The sealing bag 14 fills the gap between the holder 8 and the mouth. The sealing bag 14 is set as an annular structure. The first connecting tube 13 is used to connect the air bag 12 and the sealing bag 14. The air bag 12 is set as a strip structure.

[0036] During use, the movable piece 10 will squeeze the air storage bag 12 when it moves downward. After the air storage bag 12 is pressurized, the gas inside will be transported to the sealing bag 14 through the first connecting tube 13. After the sealing bag 14 expands, it will seal the contact edge of the fixator 8 and the oral cavity to prevent saliva from flowing out and causing contamination.

[0037] Example 2: Based on Example 1, please refer to Figures 7-10 As shown, in order to facilitate the fixation of the tracheal body 3 and the angle adjustment, a small air bag 17 is also provided, and its specific structure is as follows: an expansion air bag 15, the expansion air bag 15 is set to a circular ring structure, the expansion air bag 15 is connected to the second connecting tube 16, the second connecting tube 16 passes through the inner wall of the tracheal body 3 and extends to the right side outside of the handle 2, a small air bag 17, the small air bag 17 is set to an arc structure, each small air bag 17 is correspondingly connected to a third connecting tube 18, the third connecting tube 18 passes through the inner wall of the tracheal body 3 at an equal angle and extends to the right side outside of the handle 2, and the right side ends of the second connecting tube 16 and the third connecting tube 18 are provided with charging and discharging ports 19, and the corresponding charging and discharging ports 19 are inflated and deflated as needed.

[0038] During use, the image displayed by the fiber bronchoscope body is transmitted through the optical cable under the illumination of the lens 4 for convenient observation by the doctor. The tracheal body 3 is slowly inserted and then moved to the bottom of the epiglottis to expose the glottis. After the front driving end of the fiber bronchoscope body 1 enters the patient's trachea, the tracheal tube is pushed into the patient's trachea, and the expansion airbag 15 is inflated through the charging and discharging port 19 on the second connecting tube 16. After the expansion airbag 15 is inflated, the tracheal body 3 is fixed, so that the tracheal intubation guide is conveniently inserted under the adjustment of the driving end of the fiber bronchoscope body 1, which improves the convenience of using the tracheal intubation guide. At the same time, when the angle needs to be adjusted during the operation, the charging and discharging port 19 on the corresponding third connecting tube 18 is inflated, and then the small airbag 17 at the corresponding position is inflated. After the small airbag 17 is inflated, the deflection angle of the tracheal body 3 will be changed, thereby conveniently obtaining the operating field of view.

[0039] Example 3: Based on Example 2, please refer to Figures 1-2 As shown, in order to improve the stability when holding and prevent it from slipping out, an anti-slip plate 5 and a first spring 7 are provided, and the specific structure is as follows: the anti-slip plate 5, the bottom of the anti-slip plate 5 is slidably connected to the top of the base 6, the area of ​​the base 6 is larger than the area of ​​the bottom of the anti-slip plate 5, the first spring 7, the anti-slip plate 5 and the bottom of the handle 2 and the anti-slip plate 5 and the top of the base 6 are connected with the first spring 7, and the anti-slip plate 5 forms a fixed anti-slip structure through the first spring 7.

[0040] When holding the device in use, the fingers pass through the anti-slip plates 5, and the anti-slip plates 5 will separate from each other, and then slide at the bottom of the handle 2 and the top of the base 6, thereby compressing the first spring 7. At the same time, the first spring 7 will also generate a thrust on the anti-slip plate 5, so that the doctor can hold it more stably and prevent the hand from slipping due to fatigue.

[0041] Example 4: For the foundation vertical rod in Example 3, please refer to Figures 11-12 As shown, in order to suck away the patient's saliva in time and avoid affecting the doctor's operation, a suction channel 20, an intercepting chamber 22, a sealing plate 23 and a connecting rod 25 are also provided. The suction channel 20 is opened on the left and right sides of the bottom of the second connecting tube 16. The right bottom of the suction channel 20 is connected to a discharge pipe 21, and the discharge pipe 21 is connected to the negative pressure adsorption equipment. The left side of the suction channel 20 is interconnected with the intercepting chamber 22. The cross-sectional area of ​​the intercepting chamber 22 is twice that of the suction channel 20. The inner top of the intercepting chamber 22 is connected to the sealing plate 23 through a third spring 24. The cross-sectional area of ​​the sealing plate 23 is equal to the area of ​​the suction channel 20. The bottom of the sealing plate 23 is integrally installed with a connecting rod 25, which is connected to the bottom of the second connecting tube 16 and contacts the movable sheet 10.

[0042] During use, when the movable sheet 10 located at the bottom is squeezed, it will push the connecting rod 25 to drive the sealing plate 23 to move upward in the interception chamber 22, and then compress the third spring 24, thereby opening the liquid suction channel 20, and then connecting the discharge tube 21 to the external negative pressure equipment, so that the saliva produced in the patient's mouth can be sucked away in time to avoid affecting subsequent operations.

[0043] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] Although the invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the scope of protection of the invention.

Claims

1. A fiber bronchoscope oral tracheal intubation guide, comprising a fiber bronchoscope body (1), a handle (2) mounted on the right end of the fiber bronchoscope body (1), a tracheal body (3) mounted on the left side of the handle (2), and a lens (4) fixed on the left end of the fiber bronchoscope body (1), characterized in that: A fixator (8), the fixator (8) is arranged on the left side of the handle (2), and the fixator (8) is placed in the patient's mouth to keep the mouth open to provide operating space; An expansion airbag (15) is installed on the outside of the left end of the tracheal body (3). The expansion airbag (15) fixes the tracheal body (3) to facilitate patient inspection. A small airbag (17) for local expansion guidance is arranged at equal angles inside the expansion airbag (15). The small airbag (17) can be locally expanded to adjust the use angle; The anti-slip plate (5) is symmetrically slidably connected to the bottom of the handle (2), and an arc-shaped recess is provided between opposite surfaces of the handle (2) to facilitate finger gripping.

2. The fiber bronchoscope oral endotracheal intubation guide according to claim 1, characterized in that: An inner cavity (9) is provided inside the fixator (8), and a movable piece (10) is provided at a medium angle in the inner cavity (9). The fixator (8) is configured as a waist drum-shaped structure with a narrow middle portion and wide ends.

3. The fiber bronchoscope oral endotracheal intubation guide according to claim 2, characterized in that: The movable sheet (10) is configured as a curved surface structure. The movable sheet (10) is connected to the inner wall of the inner cavity (9) via a second spring (11). A rubber cushion layer is provided at the outer concave portion of the retainer (8). The movable sheet (10) forms an elastic sliding structure via the second spring (11).

4. The fiber bronchoscope oral endotracheal intubation guide according to claim 3, characterized in that: An air storage bag (12) is fixed at equal angles inside the inner cavity (9), and a movable sheet (10) in the inner cavity (9) is in extrusion contact with the air storage bag (12).

5. The fiber bronchoscope oral endotracheal intubation guide according to claim 4, characterized in that: The sealing capsule (14) is installed on the left side of the holder (8), and the sealing capsule (14) fills the gap between the holder (8) and the mouth. The sealing capsule (14) is set as an annular structure.

6. The fiber bronchoscope oral endotracheal intubation guide according to claim 5, characterized in that: A first connecting tube (13) is used to connect the air storage bag (12) and the sealing bag (14); the air storage bag (12) is configured as a strip-shaped structure.

7. The fiber bronchoscope oral endotracheal intubation guide according to claim 6, characterized in that: The expansion airbag (15) is configured as a circular ring structure, the expansion airbag (15) is connected to the second connecting tube (16), and the second connecting tube (16) passes through the inner wall of the tracheal body (3) and extends to the right side of the handle (2).

8. The fiber bronchoscope oral endotracheal intubation guide according to claim 7, characterized in that: The small airbag (17) is configured as an arc-shaped structure. Each small airbag (17) is correspondingly connected to a third connecting tube (18). The third connecting tube (18) penetrates the inner wall of the tracheal body (3) at an equal angle and extends to the right side of the handle (2). The right ends of the second connecting tube (16) and the third connecting tube (18) are provided with a charging and discharging port (19). The corresponding charging and discharging port (19) is inflated and deflated as needed.

9. The fiber bronchoscope oral endotracheal intubation guide according to claim 8, characterized in that: The anti-slip plate (5) has a bottom portion slidably connected to the top portion of the bottom bracket (6), the bottom bracket (6) has an area larger than the bottom portion of the anti-slip plate (5), and a first spring (7) is connected between the anti-slip plate (5) and the bottom portion of the handle (2) as well as between the anti-slip plate (5) and the top portion of the bottom bracket (6). The anti-slip plate (5) forms a fixed anti-slip structure through the first spring (7).

10. The fiber bronchoscope oral endotracheal intubation guide according to claim 9, characterized in that: The second connecting tube (16) is provided with a liquid suction channel (20) on the left and right sides of the bottom, and a discharge pipe (21) is connected to the bottom right of the liquid suction channel (20), and the discharge pipe (21) is connected to the negative pressure adsorption device. The left side of the liquid suction channel (20) is connected to the interception chamber (22), and the cross-sectional area of ​​the interception chamber (22) is twice that of the liquid suction channel (20). The inner top of the interception chamber (22) is connected to the sealing plate (23) through the third spring (24), and the cross-sectional area of ​​the sealing plate (23) is equal to the area of ​​the liquid suction channel (20). A connecting rod (25) is integrally installed at the bottom of the sealing plate (23), and the connecting rod (25) is connected to the bottom of the second connecting tube (16) and contacts the movable sheet (10).

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