Oral cavity fitting breathing tube
By designing an oral cavity-fitting breathing tube, and adopting a toothed alveolar and toothed baffle limiting structure and a double-walled moisturizing design, the problems of existing oropharyngeal airways falling out and heat insulation and moisturizing are solved, achieving comfortable and stable sleep and improved work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 吴佳昊
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-26
AI Technical Summary
Existing oropharyngeal airways are prone to falling out during sleep at night and cannot effectively insulate against heat and moisture, leading to symptoms such as dry lips and tongue, and oral ulcers, which affect sleep quality and daytime work efficiency.
An oral cavity-fitting breathing tube was designed, including a biting device and a pharyngeal airway. It is made of flexible soft rubber material and is limited by alveolar and tooth-blocking structures to prevent gas from directly contacting the lips and tongue. It also has a double-wall structure to keep the gas moist. The gas is drawn out of the body or introduced into the body through the pharyngeal airway.
It effectively prevents dry lips and tongue and oral ulcers, reduces the number of times you wake up at night, improves sleep quality and daytime work efficiency, prevents the tube from falling out, increases wearing comfort, and has an anti-snoring function.
Smart Images
Figure CN224404128U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of respiratory equipment technology, specifically relating to an oral cavity-fitting breathing tube. Background Technology
[0002] The adult respiratory tract mainly consists of the nose, pharynx, larynx, trachea, and bronchi. The pharynx, as an important part of the upper respiratory tract, is divided into the nasopharynx, oropharynx, and laryngopharynx, and is responsible for respiration. Normally, breathing occurs through the nasal cavity. However, many middle-aged and elderly people habitually breathe through their mouths in daily life, especially during unconscious sleep, where they partially (or completely) replace nasal breathing with oral breathing. Alternatively, when fatigued or after drinking alcohol, the muscles relax, leading to mouth breathing and even snoring.
[0003] Prolonged, continuous oral breathing, with the hot air from both exhaled and inhaled breath directly contacting the lips and tongue, accelerates saliva evaporation, leading to dehydration of the oral mucosa and lip and tongue tissues. This manifests as chapped lips, dryness of the anterior tongue mucosa (accompanied by a burning sensation), and recurrent oral ulcers. These symptoms can cause decreased daytime work efficiency and nighttime sleep disturbances. Nighttime sleep disturbances are mainly characterized by difficulty falling asleep and fragmented sleep (frequent awakenings, 3-5 times per night), resulting in a decline in the patient's quality of life and inducing anxiety, fatigue, and other physical and mental dysfunctions. It can also exacerbate sleep apnea syndrome, increase snoring, and affect the sleep quality of others.
[0004] In addition to appropriate clinical treatment, patients may also need to use assistive devices to alleviate symptoms caused by oral breathing. Currently available oropharyngeal ventilators involve inserting a thin tube into the mouth to expel phlegm. These ventilators are generally used when patients experience severe breathing difficulties and phlegm. If used during sleep at night, the ventilator will frequently fall out, and due to its small size, it lacks the function of heat insulation, moisture retention, and relief of symptoms such as dry lips and tongue. Furthermore, because oropharyngeal ventilators are mostly cylindrical, when worn, the teeth directly bite against the tube wall, causing the mouth to open at a greater angle than normal, making it very easy for the ventilator to slip out and significantly affecting wearing comfort.
[0005] In conclusion, it is very important to design an auxiliary device that can be worn stably and comfortably inside the mouth, with heat insulation and moisturizing functions, and can effectively relieve symptoms such as dry lips and tongue caused by oral breathing. Utility Model Content
[0006] The technical problem this invention aims to solve is to provide an oral-fitting breathing tube that allows exhaled and inhaled air to be directly introduced into or out of the body, avoiding direct contact between hot breath and the lips and tongue, preventing moisture loss from the tongue, mouth, and lips, reducing symptoms of chapped lips, dry tongue mucosa, and recurrent oral ulcers, reducing nighttime awakenings, alleviating snoring, improving sleep quality and daytime work efficiency; it also effectively prevents the oral-fitting breathing tube from frequently falling out of the body and improves wearing comfort.
[0007] The present invention includes an interconnected biting device and a pharyngeal airway; wherein, the biting device includes a front port, a lip guard, an alveolar tube, and a tooth guard. The front port and the lip guard are connected. The lip guard is an elliptical thin ring, and the tooth guard is an irregular elliptical ring. The lip guard and the tooth guard are connected through the alveolar tube. The tooth guard is connected to the front end of the pharyngeal airway. The front port, the alveolar tube, and the pharyngeal airway are all semi-elliptical tube structures. The front end face of the tooth guard, the rear end face of the alveolar tube, and the lip guard constitute the alveolar bone. The biting device and the pharyngeal airway are integrally formed.
[0008] The tooth stop is a semi-elliptical thin ring structure, located on the lower end face of the biting device. The alveolar tube is connected to the front end of the pharyngeal air guide tube, and the connection is stepped.
[0009] The upper end of the pharyngeal airway is shaped to fit the upper palate of the human mouth and / or the lower end is shaped to fit the tongue.
[0010] The pharyngeal airway is connected to both sides of the biting device via a transition arc.
[0011] The major diameter of the anterior portion of the pharyngeal airway is not less than the major diameter of the middle portion of the pharyngeal airway; the major diameter of the posterior portion of the pharyngeal airway is not greater than the major diameter of the middle portion of the pharyngeal airway.
[0012] The rear end face of the lip guard is toothed, and the front end face of the lip guard is shaped to fit the inside of the human lips.
[0013] The rear end face of the toothed stop is shaped to fit the tip of the tongue.
[0014] The toothed stop has a transition arc at the connection point with the pharyngeal airway and on the side closer to the pharyngeal airway.
[0015] The front end of the mouthpiece is curved to match the shape of the human mouth when open.
[0016] The oral cavity-fitting breathing tube has a double-wall structure.
[0017] The beneficial effects of this utility model are:
[0018] 1. This invention places the oral-fitting breathing tube on the tongue inside the patient's mouth, allowing exhaled and inhaled air to be directly exhaled or inhaled through the pharyngeal airway and mouthpiece. This avoids direct contact between the warm air and the lips and tongue, preventing moisture loss from the tongue, mouth, and lips, significantly reducing symptoms such as chapped lips, dry tongue mucosa, and recurrent oral ulcers. It also reduces the number of nighttime awakenings, alleviates snoring, and improves sleep quality and daytime work efficiency. Furthermore, it effectively prevents the oral-fitting breathing tube from frequently falling out of the body and improves wearing comfort.
[0019] 2. This utility model uses the lip guard, alveolar tube and tooth guard of the pharyngeal airway to form an alveolar groove to limit the teeth, which helps the patient bite their teeth when wearing it, greatly reduces the frequency of oral-fitting breathing tube falling out of the body, and prevents oral-fitting breathing tube from being swallowed into the body; the alveolar groove limiting design reduces the mouth opening angle.
[0020] 3. This invention, by incorporating a toothed stop, prevents the tongue from involuntarily exerting outward force on the pharyngeal duct during sleep, effectively assisting in preventing the oral-fitting breathing tube from falling out of the body. Simultaneously, the toothed stop moves the jaw forward, increasing the rate of airflow from the oral-fitting breathing tube and reducing airflow through the nasal cavity, thus providing an anti-snoring function. Furthermore, the toothed stop adopts a semi-elliptical thin ring structure, located on the lower end face of the mouthpiece. Eliminating the upper structure of the toothed stop reduces the force on the palate, lowers the presence of the oral-fitting breathing tube in the mouth, and improves wearing comfort. Attached Figure Description
[0021] Appendix Figure 1 This is a top view of the structure of this utility model;
[0022] Appendix Figure 2 This is a bottom view of the structure of this utility model;
[0023] Appendix Figure 3 This is a top view of the structure of this utility model;
[0024] Appendix Figure 4 This is a front view of the structure of this utility model;
[0025] Appendix Figure 5 This is a left view of the structure of this utility model;
[0026] In the diagram, 1 is the anterior port; 2 is the lip guard; 3 is the alveolar tube; 4 is the tooth guard; and 5 is the pharyngeal airway. Detailed Implementation
[0027] Example 1
[0028] In this utility model, the term "front" is defined as the direction towards the outside of the patient's mouth, the term "back" is defined as the direction towards the throat inside the patient's mouth, the term "upper" is defined as the direction towards the palate inside the patient's mouth, and the term "lower" is defined as the direction towards the tongue inside the patient's mouth. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0029] As attached Figures 1 to 5 As shown, this utility model discloses an oral cavity-fitting breathing tube, comprising an oral biting device and a pharyngeal airway 5 connected to each other. The oral biting device includes a front port 1, a lip guard 2, an alveolar tube 3, and a tooth guard 4. The front port 1 and the lip guard 2 are connected. The lip guard 2 is an elliptical thin ring, and the tooth guard 4 is an irregular elliptical ring. The lip guard 2 and the tooth guard 4 are connected through the alveolar tube 3. The tooth guard 4 is connected to the front end of the pharyngeal airway 5. The front port 1, the alveolar tube 3, and the pharyngeal airway 5 are all semi-elliptical tube structures. The front end face of the tooth guard 4, the rear end face of the alveolar tube 3, and the lip guard 2 form an alveolar. The oral biting device and the pharyngeal airway 5 are connected as an integrally formed oral cavity-fitting breathing tube.
[0030] In this embodiment, the oral cavity-fitting breathing tube is made of a single-walled, non-toxic, and harmless flexible soft rubber material; the wall thickness of the oral cavity-fitting breathing tube is 1.0mm-2.5mm, preferably 1.5mm-2.0mm; the length of the breathing tube is 8cm-15cm (designed according to the average anatomical dimensions of the oral cavity to the pharynx in adults). If it is too short (<8cm), it cannot effectively extend into the pharynx, affecting the ventilation effect; if it is too long (>12cm), it is easy to touch the larynx and cause reflexive vomiting; the length of the pharyngeal airway is 4cm-6cm, conforming to the physiological curvature of the oropharynx to the laryngopharynx, avoiding compression of the tongue root; the length of the bite device is 1cm-2cm, matching the distance from the incisors to the soft palate, ensuring that the alveolar structure effectively engages the teeth. The material includes, but is not limited to, food-grade silicone. Referring to existing medical catheters (such as anti-choking gastric tubes with a wall thickness of 1mm), and considering the need for the breathing tube to balance flexibility and support, 1-1.5mm silicone material is used. The oral-fit snorkel is placed on the tongue in the patient's mouth, with the teeth occluding on the alveolar bone of the bite device. The alveolar bone restricts the movement of the oral-fit snorkel by limiting the upper and lower teeth, significantly reducing the frequency of the snorkel falling out of the mouth and preventing it from being swallowed. Furthermore, the alveolar bone restriction design not only facilitates occlusion during wear but also reduces the force exerted by the snorkel's structure on the palate, minimizing its presence in the mouth and improving wearing comfort. The tooth stop 4 restricts the lower teeth, preventing the snorkel from falling out of the body, and also restricts the tongue, preventing the tongue from involuntarily exerting outward force on the pharyngeal tube during sleep, effectively assisting in preventing the snorkel from exiting the brain. Simultaneously, the tooth stop 4 moves the lower jaw forward, increasing the rate of airflow from the snorkel and reducing airflow through the nasal cavity, thus providing an anti-snoring function.
[0031] This oral cavity-fitting breathing tube effectively prevents exhaled and inhaled air from being directly exhaled or inhaled through the pharyngeal airway 5 and the mouthpiece, avoiding direct contact between the hot air during breathing and the lips and tongue, and preventing moisture loss from the tongue, mouth and lips due to evaporation. Through repeated sleep tests conducted by more than 20 users over six months, it was found that without the oral-fitting breathing tube, sleepers would wake up 4-6 times per night due to dry lips and tongue. With the oral-fitting breathing tube, the number of awakenings due to dry lips and tongue was reduced to 1-3 times per night, demonstrating a significant improvement in dryness of the lips and front of the tongue. This greatly reduced the occurrence of symptoms such as chapped lips, dryness of the anterior tongue mucosa, and recurrent oral ulcers, decreased the number of nighttime awakenings, alleviated snoring frequency, and improved sleep quality and daytime work efficiency. Furthermore, the oral-fitting breathing tube fell out of the body only 1-2 times per night after falling asleep, a significant reduction compared to the 3-4 times per night with existing products.
[0032] See appendix Figure 2 , 4 5. The tooth stop 4 is a semi-elliptical thin ring structure, located on the lower end face of the biting device; the alveolar tube 3 is connected to the front end of the pharyngeal air guide tube 5, and the upper end face of the connection is stepped.
[0033] The tooth stop 4 is an arc-shaped plate structure located on the lower end of the mouthpiece. The front end of the tooth stop 4 abuts against the lower teeth and the tongue, thus limiting the position of the lower teeth and tongue tip and preventing the oral-fitting breathing tube from falling out of the body. The alveolar tube 3 connects to the front end of the pharyngeal airway 5. The upper end of the connection is stepped; specifically, the upper end of the alveolar tube 3 is lower than the upper end of the pharyngeal airway 5, forming an upper alveolar ridge with the lip stop 2, alveolar tube 3, and pharyngeal airway 5. When worn, the upper teeth are placed in the upper alveolar ridge formed by the lip stop 2, alveolar tube 3, and pharyngeal airway 5, and the lower teeth are placed in the lower alveolar ridge formed by the lip stop 2, alveolar tube 3, and tooth stop 4, thus limiting the position of the teeth and stabilizing the oral-fitting breathing tube in the mouth. Furthermore, the tooth stop 4 is designed as a semi-elliptical thin ring structure. Removing the upper tooth stop 4 reduces pressure on the palate and improves wearing comfort.
[0034] The upper end face of the pharyngeal airway 5 is shaped to fit the upper palate of the human oral cavity and / or the lower end face is shaped to fit the tongue. The pharyngeal airway 5 is connected to the two sides of the bite device by a transition arc. The long diameter of the front part of the pharyngeal airway 5 is not less than the long diameter of the middle part of the pharyngeal airway 5, and the long diameter of the rear part of the pharyngeal airway 5 is not greater than the long diameter of the middle part of the pharyngeal airway 5. The rear end face of the tooth stop 4 is shaped to fit the tip of the tongue. The tooth stop 4 has a transition arc at the connection with the pharyngeal airway 5 and on the side closer to the pharyngeal airway 5. All of these are to make this oral cavity fitting breathing tube closer to the internal structure of the human oral cavity, so that the patient can reduce the foreign body sensation in the mouth and throat when wearing it, and be more comfortable.
[0035] In a preferred embodiment, the anterior portion of the pharyngeal airway 5 has a major diameter of 15mm-25mm (adapting to the width of the oral cavity entrance), the middle portion of the pharyngeal airway 5 has a major diameter of 12mm-18mm (matching the anatomical dimensions of the oropharynx), and the posterior portion of the pharyngeal airway 5 has a major diameter of 10mm-15mm (fitting the physiological curvature of the pharyngeal cavity). The gradient design of the major diameter of the pharyngeal airway 5 (anterior portion major diameter > middle portion major diameter > posterior portion major diameter) can optimize airflow dynamics and reduce respiratory resistance. The minor diameter of the elliptical tube structure of the pharyngeal airway 5 is limited to 6mm-8mm to avoid excessive compression of the tongue.
[0036] In a preferred embodiment, the toothed guard 4 has a transition arc at the connection point with the pharyngeal airway 5 and on the side closer to the pharyngeal airway 5, with a radius of curvature of 8mm-12mm, preferably 10mm±0.5mm. In a specific embodiment, a gradual transition arc is provided on the rear end face of the toothed guard 4, with the radius of curvature gradually changing from 8mm at the front end to 12mm at the rear end, to achieve dynamic fit with the tongue.
[0037] The rear end face of the lip guard 2 is toothed; the front end face of the lip guard 2 is shaped to fit the inside of the human lip.
[0038] In this embodiment, the rear end face of the lip guard 2 is made into a tooth shape. Specifically, the upper part of the rear end face of the lip guard 2 is made into the shape of the patient's upper teeth, and the lower part of the rear end face of the lip guard 2 is made into the shape of the patient's lower teeth. That is, the lip guard 2 is made into a simulated brace-like structure that fits the human teeth. This not only makes it comfortable and more stable to wear, but also has a tooth-strengthening function. As we age, the function of the lip and palate muscles declines. The simulated brace-like structure stimulates the gums, promotes tooth occlusion, and achieves the effect of promoting saliva production and strengthening teeth.
[0039] The front end of the mouthpiece has an arc shape to match the shape of the human mouth when open. In this embodiment, the front port 1 is set to an arc shape to match the shape of the human mouth when open, so that the mouth-fitting breathing tube is hidden in the mouth, which is both aesthetically pleasing and prevents displacement caused by collision with external objects.
[0040] Example 2
[0041] The only difference between this embodiment and Embodiment 1 is that the oral cavity-fitting breathing tube has a double-wall structure.
[0042] In this embodiment, the oral cavity-fitting breathing tube is designed with a double-wall structure, that is, it has two layers of material that can retain water and keep the oral cavity moist, thereby improving wearing comfort. Both layers of material are made of non-toxic and harmless flexible rubber material.
[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.
[0044] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.
Claims
1. A mouth-to-mouth breathing tube, characterized in that, The device includes an interconnected biting device and a pharyngeal airway (5); wherein the biting device includes a front port (1), a lip guard (2), an alveolar tube (3), and a tooth guard (4), the front port (1) and the lip guard (2) are connected, the lip guard (2) is an elliptical thin ring, the tooth guard (4) is an irregular elliptical ring, the lip guard (2) and the tooth guard (4) are connected through the alveolar tube (3), the tooth guard (4) is connected to the front end of the pharyngeal airway (5), the front port (1), the alveolar tube (3) and the pharyngeal airway (5) are all semi-elliptical tube structures, the front end face of the tooth guard (4), the rear end face of the alveolar tube (3) and the lip guard (2) constitute the alveolar ridge; the biting device and the pharyngeal airway (5) are integrally formed structures.
2. The oral cavity-fitting breathing tube as described in claim 1, characterized in that, The tooth stop (4) is a semi-elliptical thin ring structure, located on the lower end face of the bite device. The alveolar tube (3) is connected to the front end of the pharyngeal air guide tube (5), and the connection is stepped.
3. The oral cavity-fitting breathing tube as described in claim 1, characterized in that, The upper end of the pharyngeal airway (5) is shaped to fit the upper palate of the human oral cavity and / or the lower end is shaped to fit the tongue.
4. The oral cavity-fitting breathing tube as described in claim 1, characterized in that, The pharyngeal air duct (5) is connected to the two sides of the biting device by a transition arc.
5. The oral cavity-fitting breathing tube as described in claim 1, characterized in that, The major diameter of the anterior portion of the pharyngeal airway (5) is not less than the major diameter of the middle portion of the pharyngeal airway (5); the major diameter of the posterior portion of the pharyngeal airway (5) is not greater than the major diameter of the middle portion of the pharyngeal airway (5).
6. The oral cavity-fitting breathing tube as described in claim 1, characterized in that, The rear end face of the lip guard (2) is toothed; the front end face of the lip guard (2) is shaped to fit the inside of the human lip.
7. The oral cavity-fitting breathing tube as described in claim 1, characterized in that, The rear end face of the tooth stop (4) is shaped to fit the tip of the tongue.
8. The oral cavity-fitting breathing tube as described in claim 1, characterized in that, The toothed stop (4) has a transition arc at the connection point with the pharyngeal airway (5) and on the side closer to the pharyngeal airway (5).
9. The oral cavity-fitting breathing tube as described in claim 1, characterized in that, The front port has an arc shape that matches the shape of the human mouth when it is open.
10. A mouth-fitting breathing tube as described in any one of claims 1 to 9, characterized in that, The oral cavity-fitting breathing tube has a double-wall structure.