Auxiliary intubation oral cavity fixator

Abstract

The utility model provides an auxiliary intubation oral cavity fixator, and belongs to the technical field of auxiliary intubation medical instruments. The auxiliary intubation oral cavity fixator is used for solving the problems that an existing auxiliary intubation oral cavity fixator cannot be matched with oral cavities of patients of different age groups, and work adaptability is poor. The auxiliary intubation oral cavity fixator is provided with an upper tooth fixing unit and a lower tooth fixing unit. Occlusion frames in the upper tooth fixing unit and the lower tooth fixing unit can be disassembled and installed on the supporting frame through the quick disassembling assembly, a U-shaped groove is formed in one end face of each occlusion frame, and the tooth sockets are installed in the U-shaped grooves and worn on the teeth. By means of the arrangement, the mode that tooth sockets of different sizes and radians can be rapidly replaced according to the oral cavity of a patient is provided for the auxiliary intubation oral cavity fixator, and the situation that the auxiliary intubation oral cavity fixator cannot be matched with the oral cavities of patients of different age groups due to the single size is avoided; and the working adaptability of the auxiliary intubation oral cavity fixator is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of auxiliary intubation medical device technology, and in particular relates to an auxiliary intubation oral fixation device. Background Technology

[0002] During endotracheal intubation, patients are often unconscious or anesthetized, leading to involuntary oral movements. It is difficult for medical staff to maintain the patient's mouth in a properly open position for an extended period. In such cases, an oral fixation device can reduce the difficulty and duration of the intubation procedure and ensure optimal treatment in emergencies. However, in practice, incompatibility between the teeth and the mounting bracket can occur. This can lead to serious consequences, such as the patient not being able to wear the device or the device failing to protect the teeth, resulting in tooth loss and tracheal obstruction. The main reason is that most existing oral fixation devices are designed based on a specific age group or averaged tooth curvature, and cannot be widely adapted to the oral structures of patients of different ages.

[0003] In summary, the existing assisted intubation oral fixation devices have the following problems: they cannot be adapted to the oral cavity of patients of different ages, resulting in poor work adaptability. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide an auxiliary intubation oral fixation device that can be replaced with different sizes and curvatures of dental braces, in order to solve the problem that the existing auxiliary intubation oral fixation devices cannot be adapted to the oral cavity of patients of different ages, resulting in poor work adaptability.

[0005] To achieve the above and other related objectives, this utility model provides an auxiliary intubation oral fixation device, which includes:

[0006] The upper and lower teeth fixation units are symmetrically arranged, and each of the upper and lower teeth fixation units includes a support frame, an occlusal frame, a U-shaped groove, a dental crown, and a quick-release assembly.

[0007] One end face of the occlusal frame is provided with a U-shaped groove, and the other end face of the occlusal frame is detachably installed with the support frame through a quick-release assembly. The support frame of the upper tooth fixation unit and the support frame of the lower tooth fixation unit are both located between the occlusal frame of the upper tooth fixation unit and the occlusal frame of the lower tooth fixation unit. The dental brace is installed in the U-shaped groove and is worn on the teeth.

[0008] A rotating component is installed between the occlusal frame of the upper tooth fixing unit and the occlusal frame of the lower tooth fixing unit. The occlusal frame of the upper tooth fixing unit and the occlusal frame of the lower tooth fixing unit open or close at an angle through the rotating component.

[0009] As an optional solution, the quick-release assembly includes a hook and a locking seat;

[0010] The latch seat is fixedly installed on the support frame, and the latch seat is provided with a keyhole for locking.

[0011] The hook is fixedly installed on the engagement frame, and the hook is locked in place with the keyhole. The hook is made of elastic material.

[0012] Alternatively, the rotating component can be a spring or a hinge.

[0013] As an option, the dental brace is made of ethylene-vinyl acetate copolymer or methyl vinyl silicone rubber.

[0014] As an optional solution, the auxiliary intubation oral fixation device also includes a telescopic fixation unit for opening or locking the angle between the upper tooth fixation unit and the lower tooth fixation unit;

[0015] The telescopic fixing unit includes a telescopic component and a locking component;

[0016] The telescopic end of the telescopic component is hinged to the support frame of the upper tooth fixing unit, and the fixed end of the telescopic component is hinged to the support frame of the lower tooth fixing unit; the direction of movement of the telescopic end of the telescopic component is perpendicular to the rotation axis of the rotating component, and the direction of movement of the fixed end of the telescopic component is perpendicular to the rotation axis of the rotating component.

[0017] The telescopic component is used to open and close the angle between the upper tooth fixing unit and the lower tooth fixing unit, and the locking component is used to lock the angle between the upper tooth fixing unit and the lower tooth fixing unit.

[0018] As an optional solution, the telescopic assembly includes a mounting tube, a ratchet, a ratchet connecting post, and a rack;

[0019] The lower end face of the mounting tube is a fixed end and is hinged to the support frame of the lower tooth fixing unit. The rotation axis of the mounting tube is parallel to the rotation axis of the rotating component.

[0020] The rack is slidably installed inside the mounting tube, and the upper end of the rack slides out of the mounting tube. The sliding direction of the rack is perpendicular to the rotation axis of the mounting tube. One end of the rack that extends out of the mounting tube is the telescopic end of the telescopic component and is hinged to the support frame of the upper tooth fixing unit. The rotation axis of the rack is parallel to the rotation axis of the rotating component.

[0021] The ratchet connecting post is installed inside the mounting tube, and the axial direction of the ratchet connecting post is perpendicular to the sliding direction of the rack.

[0022] The ratchet is rotatably mounted on the ratchet connecting post, the rack meshes with the ratchet, and the rotation axis of the ratchet is parallel to the axis of the ratchet connecting post.

[0023] As an optional solution, the locking assembly includes a pawl connecting post, a pawl, a button spring, and a button;

[0024] The pawl connecting post is installed inside the mounting tube, and the axis of the pawl connecting post is parallel to the axis of the ratchet connecting post. The pawl connecting post is located above the ratchet connecting post.

[0025] The pawl is rotatably mounted on the pawl connecting post. The pawl meshes with the ratchet and is also slidably connected to the pawl connecting post. The minimum distance from the axis of the pawl connecting post to the root circle of the ratchet tooth is less than the length of the pawl. The rotation axis of the pawl is parallel to the axis of the pawl connecting post, and the sliding direction of the pawl is parallel to the axis of the pawl connecting post.

[0026] The button spring is sleeved on the pawl connecting post, one end of the button spring is connected to the pawl, and the other end of the button spring is connected to the inner wall of the mounting tube;

[0027] One end of the button is fixed to the pawl, and the other end of the button slides through the side wall of the mounting tube and extends out. The sliding direction of the button is parallel to the axial direction of the pawl connecting post.

[0028] As an optional solution, the auxiliary intubation oral fixation device also includes a tongue depressor;

[0029] The tongue depressor is fixedly installed on the lower support frame, and the installation direction of the tongue depressor is towards the root of the tongue.

[0030] Alternatively, the tongue depressor can be made of polystyrene or polypropylene.

[0031] As described above, the oral fixation device for auxiliary intubation of this utility model has at least the following beneficial effects:

[0032] 1. This application incorporates a quick-release component, which allows the occlusal articulator to be quickly installed and removed from the support frame. This also enables the braces installed on the occlusal articulator to be quickly changed to different sizes, solving the problem that the auxiliary intubation oral fixation device cannot be adapted to the oral cavity of patients of different ages due to its single size, resulting in poor work adaptability.

[0033] 2. This application, through the telescopic component and locking component, allows the upper and lower tooth fixation units to open and close via the telescopic component, and also allows the upper and lower tooth fixation units to be locked at an angle via the locking component. This solves both the problem of insufficient mouth opening angle during intubation and the problem of the patient's oral cavity not being able to maintain a specific angle for a long time.

[0034] 3. This application incorporates a detachable and removable occlusal frame, support frame, and braces, allowing dentists to first select the appropriate braces based on the patient's teeth, then select the matching occlusal frame based on the braces, and finally fix the occlusal frame to the support frame. This inside-out approach facilitates the dentist's direct selection of the appropriate braces size and prioritizes the protection of the patient's teeth, thus making the dentist's operation more convenient. Attached Figure Description

[0035] Figure 1 The diagram shown is a structural schematic of the auxiliary intubation oral fixation device of this utility model;

[0036] Figure 2 The diagram shown is a schematic diagram of the upper tooth fixing unit structure of this utility model;

[0037] Figure 3 The diagram shown is a cross-sectional view of the auxiliary intubation oral fixation device of this utility model.

[0038] Figure 4 Displayed as Figure 3 Schematic diagram of the structure at point A;

[0039] Figure 5 The diagram shown is a structural schematic of the telescopic fixing unit of this utility model;

[0040] Figure 6 The diagram shown is a structural schematic of the locking component of this utility model;

[0041] Figure 7 The image shown is a cross-sectional view of the telescopic fixing unit of this utility model.

[0042] In the diagram: 1. Upper tooth fixing unit; 2. Lower tooth fixing unit; 3. Rotating component; 4. Telescopic fixing unit; 5. Tongue depressor;

[0043] 101. Support frame; 102. Bite joint; 103. U-shaped groove; 104. Braces; 105. Quick-release assembly;

[0044] 1051. Lock seat; 1052. Hook;

[0045] 10511. Square groove; 10512. Keyhole;

[0046] 401. Telescopic component; 402. Locking component;

[0047] 4011. Mounting tube; 4012. Ratchet; 4013. Ratchet connecting post; 4014. Rack;

[0048] 4021. Pawl connecting post; 4022. Pawl; 4023. Button spring; 4024. Button. Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0050] Please see Figures 1 to 7 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0051] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0052] In this embodiment, please refer to Figure 1 and Figure 2 This utility model provides an auxiliary intubation oral fixation device, which includes:

[0053] The upper tooth fixation unit 1 and the lower tooth fixation unit 2 are symmetrically arranged. Both the upper tooth fixation unit 1 and the lower tooth fixation unit 2 include a support frame 101, an occlusal frame 102, a U-shaped groove 103, a dental crown 104, and a quick-release assembly 105.

[0054] In this embodiment, the upper tooth fixation unit 1 and the lower tooth fixation unit 2 have completely identical structures. The dental brace 104 in the upper tooth fixation unit 1 faces the upper teeth, and the dental brace 104 in the lower tooth fixation unit 2 faces the lower teeth.

[0055] One end face of the occlusal frame 102 is provided with a U-shaped groove 103, and the other end face of the occlusal frame 102 is detachably installed with the support frame 101 through a quick-release assembly 105. The support frame 101 of the upper tooth fixation unit 1 and the support frame 101 of the lower tooth fixation unit 2 are both located between the occlusal frame 102 of the upper tooth fixation unit 1 and the occlusal frame 102 of the lower tooth fixation unit 2. The dental brace 104 is installed in the U-shaped groove 103 and is worn on the teeth.

[0056] In this embodiment, different types of braces 104 are provided according to the curvature of the dental arch. In order to match the different types of braces 104, the U-shaped grooves 103 on the occlusal frame 102 are also provided with different types of matching occlusal frames 104. Different types of occlusal frames 102 can be installed on the support frame 101 through the quick-release assembly 105.

[0057] The dental brace 104 is installed in the U-shaped groove 103 with an interference fit. The dental brace 104 has a groove for fixing teeth inside. In the upper tooth fixing unit 1, the groove of the dental brace 104 is aligned with the upper teeth, and in the lower tooth fixing unit 2, the groove of the dental brace 104 is aligned with the lower teeth.

[0058] Here, the material of braces 104 is not limited; it can be either ethylene-vinyl acetate copolymer or methyl vinyl silicone rubber.

[0059] With this setup, doctors can select the appropriate occlusal frame 102 and dental braces 104 to match the oral cavity size of patients of different ages. The quick-release component 105 can be quickly disassembled and installed on the support frame 101. This makes the operation simple and solves the problem that the auxiliary intubation oral fixator cannot be adapted to the oral cavity of patients of different ages due to its single size, resulting in poor work adaptability.

[0060] The interchangeable occlusal articulator 102, support frame 101, and braces 104 allow doctors to first select the appropriate braces 104 based on the patient's teeth, then select the matching occlusal articulator 102 based on the braces 104, and finally fix the occlusal articulator 102 onto the support frame 101. This design reduces the doctor's operational procedures.

[0061] Rotating component 3 is installed between the occlusal frame 102 of the upper tooth fixing unit 1 and the occlusal frame 102 of the lower tooth fixing unit 2. The occlusal frame 102 of the upper tooth fixing unit 1 and the occlusal frame 102 of the lower tooth fixing unit 2 are opened or closed at an angle by the rotating component 3.

[0062] Here, there is no limitation on the rotating part 3; it can be a spring or a hinge.

[0063] Here, the upper tooth fixing unit 1 and the lower tooth fixing unit 2 are integrated into one unit by the rotating component 3, and the upper tooth fixing unit 1 and the lower tooth fixing unit 2 are opened or closed at a certain angle with the rotation axis of the rotating component 3 as the baseline;

[0064] This setting allows the opening and closing angles of the upper tooth fixation unit 1 and the lower tooth fixation unit 2 to better match the opening and closing angles of the human oral cavity, making the braces 104 fit more snugly against the patient's teeth to protect them and prevent them from falling out and blocking the trachea.

[0065] In this embodiment, please refer to Figure 2 , Figure 3 and Figure 4 The quick-release assembly 105 includes a hook 1052 and a locking seat 1051;

[0066] The latch seat 1051 is fixedly installed on the support frame 101, and the latch seat 1051 is provided with a lock hole 10512 for locking.

[0067] The hook 1052 is fixedly installed on the bite frame 102. The hook 1052 is locked in place with the keyhole 10512. The hook 1052 is made of elastic material.

[0068] In this embodiment, there are two latch seats 1051. The two latch seats 1051 are fixedly installed at both ends of the support frame 101. The interior of the latch seat 1051 is provided with a square groove 10511, and the side wall of the square groove 10511 is provided with a keyhole 10512 that penetrates the side wall.

[0069] There are two hooks 1052, both of which are L-shaped. The bent portion of the L-shape of one hook 1052 faces left, and the bent portion of the L-shape of the other hook 1052 faces right. Both hooks 1052 are mounted on the engagement frame 102, and the bent portions of the hooks 1052 correspond one-to-one with the two keyholes 10512. The vertical portion of the hook 1052 is the connecting end and is connected to the engagement frame 102, while the bent portion of the hook 1052 is the lock. The hook end is trapezoidal in shape, with its upper surface parallel to the upper short side of the trapezoid and its lower surface parallel to the lower long side. The hook end can be inserted entirely into the keyhole 10512 for locking and fixing. When the hook end is engaged with the keyhole 10512, its lower end will partially protrude from the keyhole 10512. The length of the lower end of the hook end protruding from the keyhole 10512 is greater than the length of the upper end of the hook end. The side of the hook end is a trapezoidal slope, which is used for guidance when disengaging.

[0070] When the engagement frame 102 is installed on the support frame 101, the hook end of the hook 1052 can be pressed to cause the hook 1052 to undergo elastic deformation and be inserted into the square groove 10511 of the lock seat 1051. After releasing the press, the hook 1052 returns to its original shape and the hook end is fully inserted into the keyhole 10512 to lock. At this time, a portion of the lower end of the hook end will protrude from the keyhole 10512.

[0071] When it is necessary to remove the bite frame 102, press the part of the hook end that extends out of the keyhole 10512. Because the length of the part of the hook end that extends out of the keyhole 10512 is greater than the length of the upper end of the hook end, pressing the part of the hook end that extends out of the keyhole 10512 will cause the upper end of the hook end to disengage from the keyhole 10512. At the same time, pull the bite frame 102 upward. The hook end is guided by the inclined surface on the side to make the entire hook 1052 disengage from the keyhole 10512. At this time, the bite frame 102 and the support frame 101 are separated. The material of the hook 1052 can be nylon.

[0072] With this setup, the assisted intubation oral fixation device can install occlusal frames 102 of different curvatures on the support frame 101, and the quick-release component 105 is easy to disassemble and install, enabling doctors to install the matching occlusal frames 102 and braces 104 more quickly.

[0073] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 5 The auxiliary intubation oral fixation device also includes a telescopic fixation unit 4 for opening or locking the angle between the upper tooth fixation unit 1 and the lower tooth fixation unit 2;

[0074] The telescopic fixing unit 4 includes a telescopic component 401 and a locking component 402;

[0075] The telescopic end of the telescopic component 401 is hinged to the support frame 101 of the upper tooth fixing unit 1, and the fixed end of the telescopic component 401 is hinged to the support frame 101 of the lower tooth fixing unit 2; the movement direction of the telescopic end of the telescopic component 401 is perpendicular to the rotation axis of the rotating member 3, and the movement direction of the fixed end of the telescopic component 401 is perpendicular to the rotation axis of the rotating member 3.

[0076] The telescopic component 401 is used to open and close the angle between the upper tooth fixing unit 1 and the lower tooth fixing unit 2, and the locking component 402 is used to lock the angle between the upper tooth fixing unit 1 and the lower tooth fixing unit 2.

[0077] In this embodiment, the telescopic fixing unit 4 is installed between the locking seat 1051 of the upper tooth fixing unit 1 and the locking seat 1051 of the lower tooth fixing unit 1. The bottom end of the locking seat 1051 is provided with a shaft whose axis is parallel to the rotation axis of the rotating member 3. The telescopic end of the telescopic fixing unit 4 is provided with a fixing bushing whose axis is parallel to the rotation axis of the rotating member 3. The fixed end of the telescopic fixing unit 4 is also provided with a fixing bushing whose axis is parallel to the rotation axis of the rotating member 3. The fixing bushing provided at the fixed end cooperates with the shaft of the locking seat 1051 of the lower tooth fixing unit 2 to form a hinge. The fixing bushing provided at the telescopic end cooperates with the shaft of the locking seat 1051 of the upper tooth fixing unit 1 to form a hinge.

[0078] This setup allows the upper tooth fixation unit 1 and the lower tooth fixation unit 2 to open and close at different angles and lock at different angles via the telescopic fixation unit 4. This solves both the problem of insufficient mouth opening angle during intubation and the problem of the patient's mouth not being able to maintain a specific angle for a long time.

[0079] In this embodiment, please refer to Figure 3 and Figure 5 The telescopic assembly 401 includes a mounting tube 4011, a ratchet 4012, a ratchet connecting post 4013, and a rack 4014;

[0080] The lower end face of the mounting tube 4011 is a fixed end and is hinged to the support frame 101 of the lower tooth fixing unit 2. The rotation axis of the mounting tube 4011 is parallel to the rotation axis of the rotating component 3.

[0081] Here, the lower end face of the mounting tube 4011 is provided with a fixed bushing whose axis is parallel to the rotation axis of the rotating part 3, and it is hinged to the upper shaft of the locking seat 1051 of the lower tooth fixing unit 2.

[0082] The rack 4014 is slidably installed inside the mounting tube 4011, and the upper end of the rack 4014 slides out of the mounting tube 4011. The sliding direction of the rack 4014 is perpendicular to the rotation axis of the mounting tube 4011. One end of the rack 4014 that extends out of the mounting tube 4011 is the telescopic end of the telescopic component 401 and is hinged to the support frame 101 of the upper tooth fixing unit 1. The rotation axis of the rack 4014 is parallel to the rotation axis of the rotating component 3.

[0083] In this embodiment, the rack 4014 is provided with a guide groove, and the mounting tube 4011 has a guide block inside on the side that is slidably connected to the rack 4014. The rack 4014 is slidably connected to the guide block of the mounting tube 4011 through the guide groove. The bottom of the end of the rack 4014 that slides out of the mounting tube 4011 is provided with a protrusion that serves as a limit. The protrusion prevents the rack 4014 from detaching from the mounting tube 4011. The end of the ratchet 4012 that slides out of the mounting tube 4011 is provided with a fixed bushing whose axis is parallel to the rotation axis of the mounting tube 4011 and is hinged to the shaft on the locking seat 1051 of the upper tooth fixing unit 1.

[0084] With this configuration, because the telescopic end and the fixed end of the telescopic component 401 are hinged to the locking seat 1051, the upper tooth fixing unit 1 and the lower tooth fixing unit 2 can have a better fit angle with the patient's upper and lower teeth, which increases the patient's comfort and can better protect the patient's teeth.

[0085] The ratchet connecting post 4013 is installed inside the mounting tube 4011, and the axial direction of the ratchet connecting post 4013 is perpendicular to the sliding direction of the rack 4014.

[0086] The ratchet 4012 is rotatably mounted on the ratchet connecting post 4013, the rack 4014 meshes with the ratchet 4012, and the rotation axis of the ratchet 4012 is parallel to the axis of the ratchet connecting post 4013.

[0087] Here, the installation method of the ratchet connecting post 4013 is not limited; it can be connected by threads or integrally formed.

[0088] With this configuration, the upper tooth fixing unit 1 and the lower tooth fixing unit 2 can change their angles by sliding the rack 4014 to complete the opening and closing actions.

[0089] In this embodiment, please refer to Figure 5 , Figure 6 and Figure 7 The locking assembly 402 includes a pawl connecting post 4021, a pawl 4022, a button spring 4023, and a button 4024;

[0090] The pawl connecting post 4021 is installed inside the mounting tube 4011. The axis of the pawl connecting post 4021 is parallel to the axis of the ratchet connecting post 4013, and the pawl connecting post 4021 is located above the ratchet connecting post 4013.

[0091] Here, the installation method of the pawl connector 4021 is not limited; it can be either threaded or integrally formed.

[0092] The pawl 4022 is rotatably mounted on the pawl connecting post 4021. The pawl 4022 meshes with the ratchet 4012 and is also slidably connected to the pawl connecting post 4021. The minimum distance from the axis of the pawl connecting post 4021 to the root circle of the ratchet 4012 tooth is less than the length of the pawl 4022. The rotation axis of the pawl 4022 is parallel to the axis of the pawl connecting post 4021, and the sliding direction of the pawl 4022 is parallel to the axis of the pawl connecting post 4021.

[0093] The button spring 4023 is sleeved on the pawl connecting post 4021. One end of the button spring 4023 is connected to the pawl 4022, and the other end of the button spring 4023 is connected to the inner wall of the mounting tube 4011.

[0094] One end of the button 4024 is fixed to the pawl 4022, and the other end of the button 4024 slides through the side wall of the mounting tube 4011 and extends out. The sliding direction of the button 4024 is parallel to the axial direction of the pawl connecting post 4021.

[0095] In this embodiment, when the rack 4014 slides upward, it drives the ratchet 4012 to rotate clockwise. When the rack 4014 stops sliding, the pawl 4022 rotates by gravity to engage with the teeth of the ratchet 4012, preventing the ratchet 4012 from rotating counterclockwise and thus preventing the rack 4014 from sliding downward. One end of the pawl 4022 has a through hole with a diameter greater than or equal to that of the pawl connecting post 4021. The pawl 4022 is fitted onto the pawl connecting post 4021 through the through hole. The button spring 4023 is fitted onto the pawl connecting post 4021. One end of the button 4022 is connected to the pawl 4022, and the other end of the button spring 4023 is connected to the inner wall of the mounting tube 4011. The pawl 4022 is kept engaged with the ratchet 4012 by the elastic force of the button spring 4023. The button 4024 is cylindrical and has a cylindrical cavity with a diameter greater than or equal to the diameter of the pawl connecting post 4021. One end of the button 4024 is fitted onto the pawl connecting post 4021 through the internal cylindrical cavity and is fixedly connected to the pawl 4022. The sliding direction of the button 4024 is parallel to the axis of the pawl connecting post 4021.

[0096] Since button 4024 is fixedly connected to pawl 4022, when pawl 4022 rotates, button 4024 also needs to rotate. Therefore, button 4024 and mounting tube 4011 are still rotatably connected.

[0097] The rotation axis of the button 4024 is parallel to the axis of the pawl connecting post 4021, and the other end of the button 4024 slides through the side wall of the mounting tube 4011 and extends out.

[0098] When it is necessary to release the locked state and reset the rack 4014, the pawl 4022 can be moved by pressing the button 4024. At this time, the pawl 4022 is disengaged from the ratchet 4012. When the rack 4014 moves down and returns to its original position, the button 4024 can be turned to rotate the pawl 4022 to the angle when it was originally engaged. Then the button 4024 can be released, and the pawl 4022 will slide back to its original position under the elastic force of the button spring 4023.

[0099] This setting allows for locking the opening angle of the upper tooth fixation unit 1 and the lower tooth fixation unit 2, preventing the patient from biting the intubation tube due to an overreaction. When the intubation operation is completed, it can be reset using button 4024, facilitating the doctor's operation during intubation.

[0100] In this embodiment, please refer to Figure 1 The auxiliary intubation oral fixation device also includes a tongue depressor 5; the tongue depressor 5 is fixedly installed on the lower support frame 101, and the installation direction of the tongue depressor 5 is towards the root of the tongue;

[0101] Here, the tongue depressor 5 can be fixedly installed on the side wall of the support frame 101 of the lower tooth fixing unit 2 facing the root of the tongue by screws;

[0102] Here, the material of the tongue depressor 5 is not limited; it can be polystyrene or polypropylene.

[0103] With this setup, the tongue depressor 5 can be used to fix the position of the tongue during the doctor's intubation process, providing the doctor with a clear field of vision and allowing the surgical site to be fully exposed, making it convenient for the doctor to observe and operate.

[0104] The specific usage of this embodiment is as follows:

[0105] In use, select the appropriate braces 104 and occlusal frame 102 according to the patient's oral cavity size and dentition curvature, and install the braces 104 in the U-shaped groove 103 of the occlusal frame 102. Alternatively, the braces 104 can be worn by the patient first, and then the occlusal frame 102 can be installed. By pressing the hook 1052 on the quick-release component 105, the hook 1052 enters the square U-shaped groove 103 of the locking seat 1051 and locks with the keyhole 10512, allowing the occlusal frame 102 to be quickly installed on the support frame 101. According to the required oral cavity opening angle, the upper tooth fixation unit 1 and lower tooth fixation unit 2 are opened by the telescopic component 401. After opening to a specific angle, the locking component 402 will lock the angle. At this time, the doctor performs the intubation operation. After the operation, the doctor presses the button 4024. After the telescopic component 401 returns to its original position, the doctor rotates and releases the button 4024, and then removes the auxiliary intubation oral fixation device from the patient's mouth.

[0106] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An auxiliary intubation oral fixation device, characterized in that, The auxiliary intubation oral fixation device includes: The upper and lower teeth fixation units are symmetrically arranged, and each of the upper and lower teeth fixation units includes a support frame, an occlusal frame, a U-shaped groove, a dental crown, and a quick-release assembly. One end face of the occlusal frame is provided with a U-shaped groove, and the other end face of the occlusal frame is detachably installed with the support frame through a quick-release assembly. The support frame of the upper tooth fixation unit and the support frame of the lower tooth fixation unit are both located between the occlusal frame of the upper tooth fixation unit and the occlusal frame of the lower tooth fixation unit. The dental brace is installed in the U-shaped groove and is worn on the teeth. A rotating component is installed between the occlusal frame of the upper tooth fixing unit and the occlusal frame of the lower tooth fixing unit. The occlusal frame of the upper tooth fixing unit and the occlusal frame of the lower tooth fixing unit open or close at an angle through the rotating component.

2. The oral fixation device for auxiliary intubation according to claim 1, characterized in that, The quick-release assembly includes a hook and a locking seat; The latch seat is fixedly installed on the support frame, and the latch seat is provided with a keyhole for locking. The hook is fixedly installed on the engagement frame, and the hook is locked in place with the keyhole. The hook is made of elastic material.

3. The oral fixation device for auxiliary intubation according to claim 1, characterized in that, The rotating component is either a spring or a hinge.

4. The oral fixation device for auxiliary intubation according to claim 1, characterized in that, The dental brace is made of ethylene-vinyl acetate copolymer or methyl vinyl silicone rubber.

5. The oral fixation device for auxiliary intubation according to claim 1, characterized in that, The auxiliary intubation oral fixation device also includes a telescopic fixation unit for opening or locking the angle between the upper tooth fixation unit and the lower tooth fixation unit; The telescopic fixing unit includes a telescopic component and a locking component; The telescopic end of the telescopic component is hinged to the support frame of the upper tooth fixing unit, and the fixed end of the telescopic component is hinged to the support frame of the lower tooth fixing unit; the direction of movement of the telescopic end of the telescopic component is perpendicular to the rotation axis of the rotating component, and the direction of movement of the fixed end of the telescopic component is perpendicular to the rotation axis of the rotating component. The telescopic component is used to open and close the angle between the upper tooth fixing unit and the lower tooth fixing unit, and the locking component is used to lock the angle between the upper tooth fixing unit and the lower tooth fixing unit.

6. The oral fixation device for auxiliary intubation according to claim 5, characterized in that, The telescopic assembly includes a mounting tube, a ratchet, a ratchet connecting post, and a rack; The lower end face of the mounting tube is a fixed end and is hinged to the support frame of the lower tooth fixing unit. The rotation axis of the mounting tube is parallel to the rotation axis of the rotating component. The rack is slidably installed inside the mounting tube, and the upper end of the rack slides out of the mounting tube. The sliding direction of the rack is perpendicular to the rotation axis of the mounting tube. One end of the rack that extends out of the mounting tube is the telescopic end of the telescopic component and is hinged to the support frame of the upper tooth fixing unit. The rotation axis of the rack is parallel to the rotation axis of the rotating component. The ratchet connecting post is installed inside the mounting tube, and the axial direction of the ratchet connecting post is perpendicular to the sliding direction of the rack. The ratchet is rotatably mounted on the ratchet connecting post, the rack meshes with the ratchet, and the rotation axis of the ratchet is parallel to the axis of the ratchet connecting post.

7. The oral fixation device for auxiliary intubation according to claim 6, characterized in that, The locking assembly includes a pawl connecting post, a pawl, a button spring, and a button; The pawl connecting post is installed inside the mounting tube, and the axis of the pawl connecting post is parallel to the axis of the ratchet connecting post. The pawl connecting post is located above the ratchet connecting post. The pawl is rotatably mounted on the pawl connecting post. The pawl meshes with the ratchet and is also slidably connected to the pawl connecting post. The minimum distance from the axis of the pawl connecting post to the root circle of the ratchet tooth is less than the length of the pawl. The rotation axis of the pawl is parallel to the axis of the pawl connecting post, and the sliding direction of the pawl is parallel to the axis of the pawl connecting post. The button spring is sleeved on the pawl connecting post, one end of the button spring is connected to the pawl, and the other end of the button spring is connected to the inner wall of the mounting tube; One end of the button is fixed to the pawl, and the other end of the button slides through the side wall of the mounting tube and extends out. The sliding direction of the button is parallel to the axial direction of the pawl connecting post.

8. The oral fixation device for auxiliary intubation according to claim 1, characterized in that, The auxiliary intubation oral fixation device also includes a tongue depressor; The tongue depressor is fixedly installed on the lower support frame, and the installation direction of the tongue depressor is towards the root of the tongue.

9. The oral fixation device for auxiliary intubation according to claim 8, characterized in that, The tongue depressor is made of polystyrene or polypropylene.

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