Auxiliary supporting type nasal oxygen cannula suitable for bucktooth and incisor tooth deficiency patient

Abstract

The invention discloses an auxiliary supporting type nasal oxygen cannula suitable for a patient suffering from bucktooth and incisor tooth loss, and relates to the technical field of nasal oxygen canals, the auxiliary supporting type nasal oxygen cannula comprises a nasal oxygen cannula main body and an oral cavity supporting assembly, and the oral cavity supporting assembly is connected with the nasal oxygen cannula main body through a buckle type connecting assembly; the oral cavity supporting assembly comprises an adjustable occlusal pad and a plurality of anti-slipping buckles evenly arranged on the adjustable occlusal pad, the whole adjustable occlusal pad is of an arc-sheet-shaped structure, and the radian of the arc-sheet-shaped occlusal pad can be adjusted. The anti-slip buckle is used for hooking a gingival groove and abutting against the hard palate so as to fix the adjustable occlusal pad. According to the invention, the conversion from face fixation to stable support in the oral cavity is realized through structural innovation, a safe, comfortable and stable oxygen supply solution is provided for patients with abnormal tooth structures, the treatment compliance and life quality are remarkably improved, and the device has important clinical application value.

Description

Technical Field

[0001] This invention relates to the field of nasal oxygen tube technology, specifically an auxiliary support nasal oxygen tube suitable for patients with protruding teeth and missing front teeth. Background Technology

[0002] As an important tool for clinical oxygen therapy, the stability and comfort of nasal oxygen tubes directly affect treatment outcomes and patient experience. Currently, most clinically used nasal oxygen tubes rely on facial contours for fixation, primarily employing ear-hook or headband designs. These fixation structures are positioned by conforming to the nose, cheek, or ear. However, these fixation methods require a high degree of compatibility with the patient's maxillofacial structure and have significant limitations in patients with dental abnormalities such as protruding teeth or missing incisors. For patients with protruding teeth, the protruding dental arch causes abnormal contours around the upper lip and nose, making traditional ear-hook or headbands prone to loosening and slippage due to shifting of the force points. For patients with missing incisors, the incomplete dentition reduces facial support points, decreasing the fit between the fixation structure and the surrounding oral tissues. This not only results in poor fixation but also causes continuous pressure on the alveolar ridge and mucosa in the area of ​​missing teeth, leading to pain, ulcers, and other discomfort. In existing technologies, some nasal oxygen tubes attempt to alleviate pressure by adjusting the tightness of the fixation strap or adding silicone pads, but this does not fundamentally solve the structural fit problem. The core flaw lies in the fact that the fixation fulcrum relies on facial soft tissue. However, changes in the maxillofacial morphology of patients with dental abnormalities lead to decreased soft tissue support stability. Furthermore, a single-form occlusal auxiliary structure cannot accommodate varying degrees of dental arch protrusion or dentition defects, further exacerbating the problems of loose fixation and localized pressure, severely impacting patient treatment compliance and quality of life. Therefore, developing a nasal oxygen tube that can fit patients with dental abnormalities while balancing fixation stability and wearing comfort is an urgent clinical need. Summary of the Invention

[0003] The purpose of this invention is to provide an auxiliary support nasal oxygen tube suitable for patients with protruding teeth and missing front teeth, so as to solve the problems mentioned in the background art.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides an auxiliary support nasal oxygen tube suitable for patients with protruding teeth and missing front teeth, comprising a nasal oxygen tube body and an oral support component. The oral support component is connected to the nasal oxygen tube body via a snap-fit ​​connection component. The oral support component includes an adjustable occlusal pad and a plurality of anti-slip snaps evenly disposed on the adjustable occlusal pad. The adjustable occlusal pad has an overall arc-shaped structure, and the curvature of the arc-shaped occlusal pad can be adjusted. The anti-slip snaps are used to hook onto the gingival groove and abut against the hard palate to fix the adjustable occlusal pad.

[0005] Furthermore, the oral support component is made of shape memory polyurethane elastomer. The oral support component can be adjusted through pre-shaping. The initial curvature of the adjustable occlusal pad is 120°. After being softened by heating with a 60° hot air gun to 45°, its curvature can be adjusted to adapt to different degrees of protrusion of the dental arch.

[0006] Furthermore, the anti-slip buckle includes an outer clamping piece disposed on the side of the adjustable engagement pad near the outer arc edge, and an inner clamping piece disposed on the side of the adjustable engagement pad near the outer inner arc edge. The top of the outer clamping piece has a protruding locking round head on the side near the inner clamping piece. The inner clamping piece is arc-shaped in whole, with its outer arc surface facing the outer elastic piece.

[0007] Furthermore, the anti-slip buckle avoids the central area of ​​the adjustable occlusal pad, leaving space for incisor installation at the center of the adjustable occlusal pad. The oral support component also includes a detachable filling module for the missing tooth area that can be installed in the incisor installation space. The filling module is connected to the adjustable occlusal pad via a snap-fit ​​structure, and a titanium alloy mesh is embedded inside the filling module.

[0008] Furthermore, an L-shaped fixing member is embedded at the center of the adjustable bite pad. The L-shaped fixing member includes a vertical part extending from the center of the adjustable bite pad into the adjustable bite pad from top to bottom, and a horizontal part connected to the bottom end of the vertical part and extending horizontally from the outer arc surface of the adjustable bite pad. A first square hole is opened in the vertical part, and a second square hole is opened in the horizontal part. The first square hole and the second square hole are connected.

[0009] Furthermore, the missing tooth filling module includes a mounting base and a front tooth module that can be detachably mounted on the mounting base. The bottom of the mounting base is provided with an insertion part that matches the first square hole, the top of the vertical part is provided with a first magnetic suction part, and the mounting base is embedded with a second magnetic suction part. The first magnetic suction part and the second magnetic suction part cooperate to achieve magnetic fixation between the mounting base and the vertical part.

[0010] Furthermore, the snap-fit ​​connection assembly is made of medical-grade ABS material, and includes a snap-fit ​​base that can be snapped into the second square hole, and a bracket fixed on the snap-fit ​​base. The bracket includes an arc-shaped adjustment rod made of a multi-section universal ball seat, and a nasal oxygen tube fixing bracket fixed to the end of the arc-shaped adjustment rod away from the snap-fit ​​base. The arc-shaped adjustment rod is covered with a flexible protective tube.

[0011] Furthermore, the main body of the nasal oxygen cannula is made of medical-grade PVC material, adopts a double nasal plug design, the nasal plug diameter is 5mm, the tube length is 1.5m, and the end is equipped with a high-flow humidifier interface with a standard 22mm Luer connector.

[0012] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. This invention innovatively uses the intraoral teeth and hard palate structure as fixation points. Through a two-way clamping system with anti-slip buckles (lateral tension + reverse support), mechanical limiting and magnetic attraction dual fixation of the edentulous area filling module, and a damping universal adjustment structure of the buckle connection component, a multi-dimensional stable fixation mechanism is constructed to effectively prevent the nasal oxygen tube from loosening or slipping when the patient speaks, swallows, or moves, ensuring a continuous and unobstructed oxygen supply path.

[0013] 2. This invention utilizes the shape memory properties of the adjustable occlusal pad to achieve personalized curvature adjustment for mild, moderate, and severe protruding dental arches. It also reserves installation space for patients with missing front teeth and is equipped with a removable filling module for the missing tooth area, solving the problem of insufficient adaptation of traditional nasal oxygen tubes to special dental arch morphologies and meeting the exclusive needs of patients with protruding teeth and missing front teeth.

[0014] 3. This invention uses shape memory polyurethane elastomer with excellent biocompatibility and medical-grade ABS material to avoid the risk of irritation and sensitization to the oral mucosa and facial skin; the round head design of the anti-slip buckle and the arc-shaped inner clamping piece disperse local pressure, the lightweight design of the L-shaped fixing component reduces the occlusal burden, and the filling module for the missing tooth area specifically avoids the alveolar ridge, all of which together reduce the risk of complications such as mucosal damage and pressure ulcers, and improve the comfort of long-term wear. 4. The pre-shapeable occlusal pad design of this invention allows medical staff or family members to complete personalized adjustments after simple training; the split-type edentulous area filling module supports replacement as needed and adapts to different edentulous shapes; the standard Luer connector is compatible with high-flow humidifiers, and the universal adjustable bracket facilitates quick positioning of the nasal plug, significantly improving clinical operation efficiency and patient convenience.

[0015] 5. The key components of this invention are made of wear-resistant and anti-aging medical-grade materials. The L-shaped fixing component enhances the structural strength of the occlusal pad and reduces deformation and wear caused by repeated use. The design of the detachable module reduces the overall replacement cost and takes into account both clinical economy and durability. In summary, this invention achieves a transformation from facial fixation to stable intraoral support through structural innovation, providing a safe, comfortable, and stable oxygen supply solution for patients with dental structural abnormalities, significantly improving treatment compliance and quality of life, and has important clinical application value.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 yes Figure 3 A schematic diagram of the AA-direction structure; Figure 5 yes Figure 4 A schematic diagram of the local structure at point B; Figure 6 yes Figure 4 A schematic diagram of the local structure at point C; Figure 7 This is a schematic diagram of the mounting base structure of the present invention.

[0019] In the picture: 1-Nasal oxygen cannula body; 2-Oral support assembly; 21-Adjustable occlusal pad; 22-Anti-slip buckle; 221-Outer clamping piece; 2211-Clamping round head; 222-Inner clamping piece; 3-Snap-on connection assembly; 31-Clamping seat; 32-Arc-shaped adjusting rod; 33-Nasal oxygen cannula fixing frame; 4-L-shaped fixing component; 41-Vertical part; 411-First square hole; 42-Horizontal part; 421-Second square hole; 5-Mounting mold base; 51-Insertion part. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] Traditional nasal cannulas rely on facial contour fixation, which often leads to loosening and slippage in patients with protruding teeth or missing front teeth due to maxillofacial abnormalities. They also cause pressure and discomfort to areas such as the nasal alae and upper lip. Existing support solutions are not suitable for patients with abnormal tooth structures.

[0022] Please see Figures 1-7This invention innovatively proposes a solution that replaces traditional facial fixation with an intraoral stable structure, providing an auxiliary support nasal tube suitable for patients with protruding teeth and missing front teeth. It includes a nasal tube body 1 and an oral support component 2. The nasal tube body 1 and the oral support component 2 are connected by a snap-fit ​​connection component 3 to form a stable linkage, thereby completely getting rid of the limitations of facial fixation methods such as ear-hook and headband, and bringing a brand-new user experience to patients with abnormal tooth structure.

[0023] As a core component for adapting to dental structural abnormalities, the design of the oral support component 2 directly determines the fit and stability of the nasal oxygen tube. It mainly includes an adjustable occlusal pad 21 and evenly distributed anti-slip clips 22. The adjustable occlusal pad 21 is an arc-shaped piece, its flexible and adjustable curvature adapting to the protruding dental arches of patients with buck teeth or the dentition morphology of patients with missing incisors. The anti-slip clips 22 provide lateral tension by hooking into the gingival groove and forming reverse support by contacting the hard palate, constructing a two-way fixation system to ensure the occlusal pad does not easily shift within the oral cavity. This design, which shifts the fixation fulcrum to the dental and hard palate structures within the oral cavity, solves the adaptation problem of traditional facial fixation, avoiding pressure damage to facial soft tissues and ensuring the stability of the nasal oxygen tube during daily activities, significantly improving the comfort and reliability for patients with dental structural abnormalities.

[0024] To achieve precise adaptation to different dentition morphologies, in this embodiment, the oral support component 2 is made of shape memory polyurethane elastomer with excellent biocompatibility. This material has undergone rigorous biocompatibility testing, including cytotoxicity, skin irritation, and sensitization tests, and all indicators meet medical material standards, allowing for long-term safe contact with oral mucosa tissue. Simultaneously, the oral support component 2 is designed as a pre-molded and adjustable structure. The adjustable occlusal pad 21 is initially set to a standard 120° arc. During use, the material is softened by heating to 60°C, and the temperature drops to 45°C after softening. This temperature is within the safe range tolerable for the human body, completely avoiding the risk of burns. At this point, the material's molecular chain mobility is significantly enhanced, and its plasticity is greatly improved. The curvature can be flexibly adjusted according to the specific situation of the patient's dental arch protrusion. For example, for mild protrusion, it can be fine-tuned to 100°-110°; for moderate protrusion, it can be adjusted to 80°-100°; and for severe protrusion, it can be adjusted to 60°-80°. For patients with missing incisors, the local curvature can be finely adjusted to precisely avoid the alveolar ridge in the area of ​​missing teeth. After it is completely matched with the individual dental arch shape, it cools and sets naturally. The entire shaping process is simple to operate, and medical staff or patients' families can complete it independently after simple training. After cooling, the shape memory polyurethane elastomer can stably maintain the adjusted personalized curvature. This softening, shaping, and setting characteristic not only solves the problem of loose fixation caused by the mismatch of curvature in traditional single-shape designs, but also reduces local pressure through close contact with the curved surface of the dental arch and targeted avoidance of the area of ​​missing teeth. In addition, the material's inherent elasticity can buffer the slight pressure during biting, further reducing the risk of oral tissue damage and significantly enhancing the comfort of long-term wear.

[0025] While achieving basic curvature adaptation, to further enhance the fixation stability of the oral support component 2, the anti-slip buckle 22 in this embodiment adopts an optimized design of inner and outer clamping cooperation. Specifically, it includes an outer clamping piece 221 located on the side of the adjustable occlusal pad 21 near the outer arc edge, and an inner clamping piece 222 located on the side of the inner arc edge. Among them, the top of the outer clamping piece 221 has a protruding locking round head 2211 on the side near the inner clamping piece 222. The round head design is treated with rounded corner grinding, which can effectively avoid sharp structures scratching the gums; the inner clamping piece 222 is an arc shape that fits the internal structure of the oral cavity, and its outer arc surface faces the direction of the outer clamping piece 221, which can better fit the curved surface of the hard palate. In use, the rounded head 2211 of the outer clamping piece 221 naturally embeds into the gingival groove, forming a stable lateral pulling force through a moderate protrusion to prevent the occlusal pad from sliding outwards. The arc-shaped inner clamping piece 222 fits tightly against the hard palate surface, using its own curvature to form a reverse supporting force, precisely counteracting the pulling force of the outer clamping piece 221, so that the clip fits seamlessly with the soft and hard tissues in the oral cavity. This bidirectional clamping structure avoids the displacement problem caused by unidirectional fixation, and the rounded head design and arc-shaped structure disperse pressure, reducing local pressure on the gums and hard palate, ensuring that the oral support component 2 remains stable and does not loosen during daily oral activities such as speaking and swallowing.

[0026] Considering the specific needs of patients with missing front teeth, the anti-slip buckle 22 is intentionally designed to avoid the central area of ​​the adjustable occlusal pad 21, reserving ample space for front tooth installation. This space precisely corresponds to the shape of the front tooth area and can perfectly accommodate the edentulous filling module (not shown). Simultaneously, the oral support component 2 is equipped with a detachable edentulous filling module. For example, it can be securely connected to the adjustable occlusal pad 21 via a snap-fit ​​structure with protrusions and grooves. The titanium alloy mesh inside the edentulous filling module features a hollow mesh design, achieving lightweight while providing the module with appropriate strength and support, preventing deformation due to long-term occlusal pressure. The optimized layout of the anti-slip buckle 22 completely solves the conflict between the anti-slip structure and the edentulous area in traditional designs, ensuring that the edentulous filling module accurately corresponds to the missing tooth location. The hollow mesh design of the titanium alloy mesh inside the edentulous filling module achieves lightweight while providing the module with appropriate strength and support, preventing deformation due to long-term occlusal pressure. After installation, the filling module for the edentulous area, together with other parts of the occlusal pad and the anti-slip buckle, forms a complete support surface that conforms to the dentition, filling the gaps in the edentulous area and preventing loosening and displacement caused by the gaps. At the same time, it reduces friction and pressure on the alveolar ridge and mucosal tissues around the edentulous area. The detachable design makes it easy to replace different specifications of modules according to the number and location of the patient's missing teeth, further improving the adaptability to complex edentulous morphologies.

[0027] To enhance the structural strength of the central area of ​​the adjustable occlusal pad 21 and better support the filling module for the edentulous area, in this embodiment, an L-shaped fixing member 4 is embedded in the center of the adjustable occlusal pad 21. This L-shaped fixing member 4 is made of medical-grade stainless steel and includes a vertical portion 41 extending downwards into the occlusal pad, and a horizontal portion 42 connected to the bottom of the vertical portion 41 and extending horizontally from the outer arc surface. A first square hole 411 is formed in the vertical portion 41, and a second square hole 421 is formed in the horizontal portion 42; the two holes are interconnected to form an integrated channel. The longitudinal and transverse structure of the L-shaped fixing member 4 forms a three-dimensional support system: the vertical portion 41 penetrates deep into the center of the occlusal pad, resisting the vertical pressure generated by biting; the horizontal portion 42 extends from the outer arc surface, dispersing the force laterally, enhancing the connection strength between the edge and the central area, and preventing the edge from detaching from the main body due to long-term stress. The interconnected square holes (first square hole 411 and second square hole 421) reduce the weight of the component by more than 30% while ensuring support strength, avoiding increased burden on the occlusal pad and making it lighter to wear. When the filling module for the missing tooth area is installed in the central region, the L-shaped fixing component 4 provides a stable installation base for the module, ensuring that the module is not easily displaced under force, significantly improving the overall structure's resistance to deformation and service life, and further ensuring the fit effect for patients with missing front teeth.

[0028] To achieve precise fit and convenient assembly / disassembly between the edentulous filling module and the L-shaped fixation component 4, the edentulous filling module adopts a split design, including a mounting base 5 and a detachable incisor module mounted on it. The incisor module can be manufactured using 3D printing technology. First, three-dimensional data of the patient's missing incisor and surrounding dentition are obtained through oral scanning. Then, a model is created based on the data, and medical-grade resin material is selected for printing. After molding, the surface is polished to remove burrs, ensuring a smooth surface to reduce irritation to the oral mucosa. The bottom of the mounting base 5 is provided with an insertion part 51 that matches the first square hole 411 of the vertical part 41 of the L-shaped fixation component 4. The surface of the insertion part 51 is provided with anti-slip texture to enhance friction. A neodymium iron boron permanent magnet is embedded in the top of the vertical part 41 as the first magnetic attraction part, and an iron sheet is embedded in the corresponding position inside the mounting base 5 as the second magnetic attraction part. The magnetic fixation of the mounting base 5 and the vertical part 41 is achieved through the cooperation of the first and second magnetic attraction parts. The insertion part 51 is inserted into the first square hole 411 to form a mechanical limit, preventing the mounting base 5 from shifting in the horizontal direction; the magnetic attraction generates a 5-8N adsorption force to provide continuous fixation in the vertical direction. This dual fixation mechanism ensures that the module is not easily loosened or detached during oral activities such as speaking. The split design allows the incisor module to be customized according to the patient's tooth shape and color, improving the aesthetics and fit after wearing; the precise fit between the insertion part 51 and the square hole, as well as the magnetic fixation method, makes the module easy to install and remove. Only a 10-15N pulling force is required to complete the removal, facilitating daily cleaning and maintenance and reducing the risk of cross-infection.

[0029] As a key component connecting the nasal cannula body 1 and the oral support assembly 2, the snap-fit ​​connection assembly 3 is made of medical-grade ABS material, which has good impact resistance and dimensional stability, combining safety and structural strength. The snap-fit ​​connection assembly 3 includes a snap-fit ​​seat 31 that can be precisely snapped into the second square hole 421 of the horizontal part 42 of the L-shaped fixing component 4. The snap-fit ​​seat 31 is provided with elastic claws, and a bracket fixed on the snap-fit ​​seat 31. The bracket consists of an arc-shaped adjusting rod 32 connected by multiple universal ball joints and a nasal cannula fixing bracket 33 fixed to the end of the arc-shaped adjusting rod 32 away from the snap-fit ​​seat 31. The multi-section universal ball joint has preset damping, which provides stable friction through the precise cooperation between the ball joint and the ball head, ensuring that the arc-shaped adjustment rod 32 will not rotate on its own due to slight external force after being adjusted to the required angle, and always maintains positioning accuracy. The arc-shaped adjustment rod 32 is covered with a flexible protective tube made of medical silicone. The surface of the protective tube is smooth and has a certain degree of elasticity, which can reduce the direct friction between the adjustment rod and the facial skin or tissues around the mouth, avoid skin irritation or scratches caused by long-term contact, and improve the comfort when holding and adjusting. The elastic claws of the snap-fit ​​seat 31 engage tightly with the inner wall of the second square hole 421, providing a stable installation base for the entire connection assembly and preventing relative displacement of the connection parts; the multi-section universal ball seat gives the arc-shaped adjustment rod 32 flexible multi-angle adjustment capability, each universal ball seat can achieve 360° rotation and ±60° damped swing, medical staff or patients can adjust the bending shape of the rod according to the position and angle requirements of the nasal cavity, so as to drive the nasal oxygen tube fixation frame 33 to accurately fit the nasal cavity structure; the nasal oxygen tube fixation frame 33 firmly fixes the nasal oxygen tube with the silicone anti-slip pad set on the inner side and the wrap-around design to prevent it from falling off during activities, so as to achieve stable linkage between the oral support component 2 and the nasal oxygen tube body 1.

[0030] The nasal oxygen cannula body 1 serves as the oxygen supply channel, and its design directly affects the safety and comfort of oxygen supply. In this embodiment, it is made of medical-grade PVC material, which has good flexibility, corrosion resistance, and biocompatibility. The nasal oxygen cannula body 1 adopts a double nasal plug design. The 5mm diameter nasal plug has a flared, tapered structure, with a slightly thinner front end for easy insertion and a slightly thicker rear end to enhance sealing. This design is suitable for most patients' nasal cavity sizes, reducing pressure on the nasal mucosa. The 1.5m tube length uses a combination of corrugated and straight sections. The corrugated section can be stretched to 1.5 times its original length, providing ample space for patients to get up, turn over, and move around, avoiding the restriction of freedom of movement caused by a short tube. The end is equipped with a high-flow humidifier interface with a standard 22mm Luer connector. The connector has a sealing ring to enhance sealing, allowing for stable connection with commonly used clinical high-flow humidifiers, ensuring a sealed and reliable oxygen supply path and smooth, leak-free gas delivery. The nasal oxygen tube body 1 and the snap-on connection component 3 work together to achieve precise adaptation of the nasal plug position through universal adjustment. Medical-grade materials ensure safe use, and reasonable specifications and standard interfaces enhance clinical practicality, completely solving the problems of unstable connection, incompatible interfaces, and restricted movement of traditional nasal oxygen tubes.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A nasal cannula for assistive support in patients with protruding teeth and missing incisors, characterized in that, The device includes a nasal cannula body and an oral support assembly. The oral support assembly is connected to the nasal cannula body via a snap-fit ​​connection assembly. The oral support assembly includes an adjustable occlusal pad and several anti-slip snaps evenly distributed on the adjustable occlusal pad. The adjustable occlusal pad has an overall arc-shaped structure, and the curvature of the arc-shaped occlusal pad can be adjusted. The anti-slip snaps are used to hook onto the gingival groove and abut against the hard palate to fix the adjustable occlusal pad.

2. The auxiliary support nasal cannula for patients with protruding teeth and missing incisors as described in claim 1, characterized in that, The oral support component is made of shape memory polyurethane elastomer. The oral support component can be adjusted through pre-shaping. The initial curvature of the adjustable occlusal pad is 120°. After being heated to 60°C to soften the material and then cooled to 45°C, its curvature can be adjusted to adapt to different degrees of protrusion of the dental arch.

3. The auxiliary support nasal cannula for patients with protruding teeth and missing incisors as described in claim 1, characterized in that, The anti-slip buckle includes an outer clamping piece disposed on the side of the adjustable biting pad near the outer arc edge, and an inner clamping piece disposed on the side of the adjustable biting pad near the outer inner arc edge. The top of the outer clamping piece has a protruding locking round head on the side near the inner clamping piece. The inner clamping piece is arc-shaped as a whole, with its outer arc surface facing the outer elastic piece.

4. The auxiliary support nasal cannula for patients with protruding teeth and missing incisors as described in claim 1, characterized in that, The anti-slip buckle avoids the central area of ​​the adjustable occlusal pad, leaving space for the installation of the front teeth at the center of the adjustable occlusal pad. The oral support component also includes a detachable filling module for the missing teeth area that can be installed in the front teeth installation space. The filling module for the missing teeth area is connected to the adjustable occlusal pad through a snap-fit ​​structure, and a titanium alloy mesh is embedded inside the filling module for the missing teeth area.

5. The auxiliary support nasal cannula for patients with protruding teeth and missing incisors as described in claim 4, characterized in that, An L-shaped fixing member is embedded at the center of the adjustable bite pad. The L-shaped fixing member includes a vertical part extending from the center of the adjustable bite pad into the adjustable bite pad from top to bottom, and a horizontal part connected to the bottom end of the vertical part and extending horizontally from the outer arc surface of the adjustable bite pad. A first square hole is opened in the vertical part, and a second square hole is opened in the horizontal part. The first square hole and the second square hole are connected.

6. The auxiliary support nasal cannula for patients with protruding teeth and missing incisors as described in claim 5, characterized in that, The missing tooth filling module includes a mounting base and a front tooth module that can be detachably mounted on the mounting base. The bottom of the mounting base is provided with an insertion part that matches the first square hole. The top of the vertical part is provided with a first magnetic suction part. The mounting base is embedded with a second magnetic suction part. The first magnetic suction part and the second magnetic suction part cooperate to achieve magnetic fixation between the mounting base and the vertical part.

7. The auxiliary support nasal cannula for patients with protruding teeth and missing incisors as described in claim 5, characterized in that, The snap-fit ​​connection assembly is made of medical-grade ABS material. It includes a snap-fit ​​base that can be snapped into the second square hole and a bracket fixed on the snap-fit ​​base. The bracket includes an arc-shaped adjustment rod made of a multi-section universal ball seat and a nasal oxygen tube fixation bracket fixed to the end of the arc-shaped adjustment rod away from the snap-fit ​​base. The arc-shaped adjustment rod is covered with a flexible protective tube.

8. The auxiliary support nasal cannula for patients with protruding teeth and missing incisors as described in claim 5, characterized in that, The main body of the nasal oxygen cannula is made of medical-grade PVC material. It adopts a double nasal plug design with a nasal plug diameter of 5mm and a tube length of 1.5m. The end is equipped with a high-flow humidifier interface with a standard 22mm Luer connector.

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