A portable respiratory ventilation tube
The segmented structure of the breathing tube, with its occlusal part cooperating with the incisor occlusal groove to disperse the biting force, the pressure-resistant part providing support, and the conforming part bending with the pharynx, solves the problems of poor comfort and insufficient support of existing breathing tubes, and achieves stable airway opening and safe use.
Patent Information
- Application Number
- CN202522315853.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-31
Smart Images

Figure CN224925454U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of breathing ventilation tube technology, and in particular to a portable breathing ventilation tube. Background Technology
[0002] A breathing ventilation tube is used in medical emergency, wilderness rescue, or home care scenarios to quickly establish an open airway for patients who need respiratory support, preventing upper airway obstruction caused by factors such as tongue retraction, foreign objects, or loss of consciousness, thereby ensuring basic ventilation and buying valuable time for subsequent professional medical rescue. Chinese Patent Publication No. CN202446618U discloses an oropharyngeal airway, including an airway body with an anti-swallowing protrusion at one end, an annular protrusion around the end of the airway body on the outer surface of the other end of the airway body, and an incisor occlusal groove on the outer surface of the airway body. Although this existing design is simple in structure and scientifically sound, it can not only prevent the airway from falling out or accidentally entering the trachea due to coughing or sneezing, but also further reduce the degree of collateral damage to the human oropharynx. However, it is prone to causing pressure damage to the lips, teeth, tongue base and soft tissues of the pharynx, resulting in poor patient comfort, especially for patients who use it for a long time. Furthermore, it can be flattened by the patient's teeth, leading to airway interruption and posing a risk of suffocation. At the same time, the tube has insufficient support and is difficult to effectively lift the tongue base, resulting in poor airway closure. Therefore, a portable breathing tube was designed to solve the above problems. Utility Model Content
[0003] To address the problems mentioned in the background section, this invention provides a portable breathing tube that is resistant to biting and suffocation.
[0004] The present invention adopts the following technical solution: a portable breathing tube, the breathing tube including an occlusal part, an anti-pressure part and an accommodative part, one end of the occlusal part is connected to the anti-pressure part, the end of the anti-pressure part away from the occlusal part is connected to the accommodative part, an anti-swallowing block is fixed to the end of the occlusal part away from the anti-pressure part, two sets of incisor occlusal grooves are opened on the surface of the anti-pressure part, and transition parts are provided at the connection between the occlusal part and the anti-pressure part, and between the anti-pressure part and the accommodative part.
[0005] As a preferred embodiment of the portable breathing tube of this utility model, the two sets of incisor occlusal grooves are strip-shaped, and the two sets of incisor occlusal grooves respectively match the upper incisors and lower incisors of the human body.
[0006] As a preferred embodiment of the portable breathing tube of this utility model, the two sets of incisor occlusal grooves are laterally arranged on the outer surface of the pressure-resistant part.
[0007] As a preferred embodiment of the portable breathing tube of this utility model, the material of the occlusal part is platinum-cured medical silicone, the material of the pressure-resistant part is medical-grade thermoplastic polyurethane, and the material of the compliant part is medical-grade liquid silicone.
[0008] In a preferred embodiment of the portable breathing tube of this utility model, the hardness of the pressure-resistant part, the biting part, and the compliant part decreases sequentially.
[0009] As a preferred embodiment of the portable breathing tube of this utility model, a smooth ring is fixed on the surface of the transition portion at the connection between the compliant portion and the pressure-resistant portion, and the smooth ring is a raised circular ring.
[0010] As a preferred embodiment of the portable breathing tube of this utility model, a patterned ring is fixed on the surface of the transition portion at the connection between the pressure-resistant portion and the interlocking portion. The patterned ring consists of two raised circular rings, and the surface of the patterned ring is provided with a frosted particle texture.
[0011] As a preferred embodiment of the portable breathing tube of this utility model, a side hole is provided at the end of the compliant part away from the pressure-resistant part.
[0012] As a preferred embodiment of the portable breathing ventilation tube of this utility model, the number of side holes is several groups, the shape of the several groups of side holes is elliptical, and the several groups of side holes are distributed in a circumferential array at the tube end of the compliant part.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: it adopts a segmented structure with tube segments of different hardness. The occlusal part at the front end is made of a material with a certain hardness, which cooperates with the occlusal groove of the incisors to effectively disperse the biting force of the teeth, reduce the risk of the tube being bitten off and causing airway interruption, and maintain continuous airflow. The pressure-resistant part in the middle section has sufficient support to stabilize the soft tissues of the tongue root and pharynx, prevent them from collapsing and blocking the airway, and maintain the airway open. The conforming part at the rear end is made of a highly soft material, which can bend with the physiological curve of the pharynx, reducing the pressure and foreign body sensation on the lips, teeth, tongue root, and pharyngeal wall. Transition parts are also provided at the connection of each part to achieve a smooth transition of hardness. At the same time, multiple sets of elliptical side holes are provided at the tube end of the conforming part to provide an auxiliary ventilation path when the main ventilation hole is blocked, thereby improving the safety of use. Attached Figure Description
[0014] Figure 1 A schematic diagram of a portable breathing ventilation tube is provided for this utility model; Figure 2 A bottom view of a portable breathing tube is provided for this utility model.
[0015] Legend: 1. Occlusal portion; 2. Compression-resistant portion; 3. Accommodation portion; 4. Anti-swallowing block; 5. Incisor occlusal groove; 6. Transition portion; 7. Smooth ring; 8. Patterned ring; 9. Side hole. Detailed Implementation
[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0018] Example 1 In the existing technology, the existing oropharyngeal airway includes an airway body with an anti-swallowing protrusion at one end, and an annular protrusion around the end of the airway body on the outer surface of the other end of the airway body. The outer surface of the airway body is also provided with incisor occlusal grooves. This oropharyngeal airway has a simple structure and a scientific and reasonable design. It can not only prevent the airway from falling off and accidentally entering the human trachea due to coughing or sneezing, but also further reduce the degree of secondary damage to the human oropharynx.
[0019] This application incorporates the aforementioned prior art, such as Figures 1 to 2 As shown, this utility model provides a technical solution: a portable breathing tube, the tube including an occlusal part 1, an anti-pressure part 2 and an accommodating part 3, one end of the occlusal part 1 is connected to the anti-pressure part 2, the end of the anti-pressure part 2 away from the occlusal part 1 is connected to the accommodating part 3, an anti-swallowing block 4 is fixed to the end of the occlusal part 1 away from the anti-pressure part 2, two sets of incisor occlusal grooves 5 are opened on the surface of the anti-pressure part 2, and transition parts 6 are provided at the connection between the occlusal part 1 and the anti-pressure part 2, and between the anti-pressure part 2 and the accommodating part 3.
[0020] In this implementation scheme: a segmented structure is adopted, with tube segments of different hardness. The occlusal part 1 at the front end directly contacts the patient's lips, corners of the mouth, and incisors. It is made of a material with a certain hardness to avoid damage to the lips and gums and to improve the seal. The occlusal part 1 cooperates with the incisor occlusal groove 5 to effectively disperse the biting force of the teeth, reduce the risk of the tube being bitten off and causing airway interruption, and maintain continuous airflow. The pressure-resistant part 2 in the middle section is made of hard material and has sufficient support. The high hardness ensures that even if the patient has a strong biting reaction, the airway will not be flattened. It can stabilize the soft tissue of the tongue root and pharynx, prevent them from collapsing and obstructing the airway, and maintain the airway open. The compliance part 3 at the rear section is made of a high-softness material, which can bend with the physiological curve of the pharynx to reduce the pressure and foreign body sensation on the lips, teeth, tongue root, and pharyngeal wall. A transition part 6 is also set at the connection of each part to achieve a smooth transition of hardness.
[0021] Combining the above solutions: Furthermore: like Figures 1 to 2 As shown; In order to provide a stable biting position, in an optional embodiment, the two sets of incisor biting grooves 5 are strip-shaped, and the two sets of incisor biting grooves 5 are respectively matched with the upper incisors and the lower incisors of the human body. The two sets of incisor biting grooves 5 are laterally arranged on the outer surface of the pressure-resistant part 2.
[0022] In this embodiment, the two sets of incisor occlusal grooves 5 are strip-shaped. The two sets of incisor occlusal grooves 5 are matched with the upper incisors and lower incisors of the human body, respectively. This can provide a clear occlusal position for the upper and lower incisors and increase the contact area between the teeth and the incisor occlusal grooves 5, so as to evenly distribute the biting force and avoid the airway being locally flattened or deformed and blocked due to the patient's strong biting.
[0023] Combining the above solutions: Furthermore: like Figures 1 to 2 As shown; To improve practicality, in one optional embodiment, the material of the occlusal part 1 is platinum-cured medical silicone, the material of the compression-resistant part 2 is medical-grade thermoplastic polyurethane, and the material of the compliant part 3 is medical-grade liquid silicone, with the hardness of the compression-resistant part 2, the occlusal part 1, and the compliant part 3 decreasing sequentially.
[0024] In this embodiment: the occlusal part 1 is made of platinum-cured medical silicone. Platinum-cured medical silicone has high softness and high elasticity, which can avoid damage to the lips, teeth and oral mucosa to a certain extent. At the same time, it has high tear strength, which can prevent the occlusal part 1 from being accidentally torn by the teeth. The pressure-resistant part 2 is made of medical-grade thermoplastic polyurethane. Medical-grade thermoplastic polyurethane has high rigidity and high tear resistance, providing good radial support and resisting occlusal pressure. At the same time, it can quickly restore the original shape of the lumen after long-term or repeated biting, keeping the airway continuously open. The conforming part 3 is made of medical-grade liquid silicone. Medical-grade liquid silicone has a smooth surface and good material flexibility, which can adapt to the curvature of the pharynx and is not easily flattened, which can reduce the stimulation of the pharyngeal wall and facilitate insertion and removal. The hardness of the pressure-resistant part 2, the occlusal part 1 and the conforming part 3 decreases in that order.
[0025] Combining the above solutions: Furthermore: like Figures 1 to 2 As shown; In order to quickly identify the insertion depth of the tube, in an optional embodiment, a smooth ring 7 is fixed on the surface of the transition portion 6 at the connection between the conforming portion 3 and the anti-compression portion 2. The smooth ring 7 is a raised circular ring. A patterned ring 8 is fixed on the surface of the transition portion 6 at the connection between the anti-compression portion 2 and the interlocking portion 1. The patterned ring 8 is two raised circular rings, and the surface of the patterned ring 8 is provided with a frosted particle texture.
[0026] In this embodiment: a smooth ring 7 is fixed on the surface of the transition part 6 at the connection between the conforming part 3 and the anti-compression part 2. The smooth ring 7 is a raised circular ring. A patterned ring 8 is fixed on the surface of the transition part 6 at the connection between the anti-compression part 2 and the interlocking part 1. The patterned ring 8 is two raised circular rings. The surface of the patterned ring 8 is provided with a frosted particle texture, which makes it easy to judge the insertion depth of the tube by touching the smooth ring 7 and the patterned ring 8 in emergency environments with poor lighting or obstructed vision.
[0027] Combining the above solutions: Furthermore: like Figures 1 to 2 As shown; In order to maintain a continuous and unobstructed airflow, in an optional embodiment, the end of the conforming part 3 away from the pressure-resistant part 2 is provided with a side hole 9. The number of side holes 9 is several groups, and the shape of the several groups of side holes 9 is elliptical. The several groups of side holes 9 are distributed in a circumferential array at the tube end of the conforming part 3.
[0028] In this embodiment, a side hole 9 is provided at the end of the compliant part 3 away from the pressure-resistant part 2. The number of side holes 9 is several groups, and the shape of the several groups of side holes 9 is elliptical. The several groups of side holes 9 are distributed in a circumferential array at the tube end of the compliant part 3. The provision of multiple groups of elliptical side holes 9 at the tube end of the compliant part 3 can provide an auxiliary ventilation path when the main ventilation hole is blocked, thereby improving the safety of use.
[0029] Working principle: During use, medical staff insert the airway tube through the patient's mouth, allowing it to extend along the tongue until the compliant part 3 reaches the pharyngeal region. After insertion, the patient's upper and lower incisors will be embedded in the two horizontally arranged strip-shaped incisor occlusal grooves 5 on the surface of the anti-pressure part 2, which can disperse the force generated during chewing or clenching over a large area along the longitudinal direction of the strip-shaped grooves. At this time, the occlusal part 1 located at the front of the mouth can form a good seal with the lips, teeth and oral mucosa to improve airflow efficiency, while avoiding damage to the tissues due to excessive hardness. The compliant part 3 located at the very end can naturally conform to the physiological curvature of the pharynx and gently fit the surrounding soft tissues, minimizing pressure and irritation to the pharyngeal wall. By touching the smooth ring 7 and the textured ring 8 with a frosted texture located at the tube connection, medical staff can quickly judge the insertion depth even in poor visibility.
[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A portable breathing tube, characterized in that: The ventilation tube includes an occlusal part (1), an anti-pressure part (2), and an accommodative part (3). One end of the occlusal part (1) is connected to the anti-pressure part (2), and the end of the anti-pressure part (2) away from the occlusal part (1) is connected to the accommodative part (3). An anti-swallowing block (4) is fixed to the end of the occlusal part (1) away from the anti-pressure part (2). Two sets of incisor occlusal grooves (5) are provided on the surface of the anti-pressure part (2). A transition part (6) is provided at the connection between the occlusal part (1) and the anti-pressure part (2), and between the anti-pressure part (2) and the accommodative part (3).
2. The portable breathing tube according to claim 1, characterized in that: The two sets of incisor occlusal grooves (5) are strip-shaped, and the two sets of incisor occlusal grooves (5) are respectively matched with the upper incisors and lower incisors of the human body.
3. The portable breathing tube according to claim 2, characterized in that: The two sets of incisor bite grooves (5) are arranged laterally on the outer surface of the pressure-resistant part (2).
4. The portable breathing tube according to claim 3, characterized in that: The material of the occlusal part (1) is platinum vulcanized medical silicone, the material of the pressure-resistant part (2) is medical-grade thermoplastic polyurethane, and the material of the compliant part (3) is medical-grade liquid silicone.
5. The portable breathing tube according to claim 4, characterized in that: The hardness of the pressure-resistant part (2), the biting part (1) and the compliant part (3) decreases sequentially.
6. The portable breathing tube according to claim 5, characterized in that: A smooth ring (7) is fixed on the surface of the transition part (6) at the connection between the conforming part (3) and the pressure-resistant part (2). The smooth ring (7) is a raised circular ring.
7. The portable breathing ventilation tube according to claim 6, characterized in that: A patterned ring (8) is fixed on the surface of the transition part (6) at the connection between the pressure-resistant part (2) and the interlocking part (1). The patterned ring (8) consists of two raised rings, and the surface of the patterned ring (8) is provided with a frosted particle texture.
8. The portable breathing tube according to claim 7, characterized in that: The compliant part (3) has a side hole (9) at one end away from the pressure-resistant part (2).
9. The portable breathing tube according to claim 8, characterized in that: The number of side holes (9) is several groups, and the shape of the several groups of side holes (9) is elliptical. The several groups of side holes (9) are distributed in a circumferential array at the tube end of the conforming part (3).
Citation Information
Patent Citations
Oropharynx breather pipe
CN202446618U
