Adjustable tracheal tube dental cushion
The design of the adjustable endotracheal intubation bite block solves the problem of poor adaptability of fixed-length bite blocks, realizes length adjustment and anti-slip functions, and improves patient comfort and medical care efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGNAN HOSPITAL OF WUHAN UNIV
- Filing Date
- 2025-04-02
- Publication Date
- 2026-06-09
AI Technical Summary
The fixed length of existing endotracheal intubation bite blocks results in poor adaptability, which may lead to the tube being inserted too deeply or too shallowly, causing pressure and damage to the pharynx or failing to effectively prevent biting of the tube, thus increasing clinical preparation time and costs.
An adjustable endotracheal intubation dental pad is designed, which adopts a telescopic auxiliary fixation component and a spiral structure. The length is adjusted by rotating the relative displacement of the nut structure and the bolt structure. Combined with medical silicone and anti-slip fixation plate, it ensures that it can adapt to different oral cavity depths and prevents slippage.
It allows for length adjustment based on oral cavity shape, reducing pressure damage, improving comfort and fixation stability, reducing the risk of biting the tube, and improving the work efficiency of medical staff.
Smart Images

Figure CN224331319U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an adjustable endotracheal intubation dental pad. Background Technology
[0002] With the continuous development of society, people's medical level has also made significant progress. In the process of clinical treatment, endotracheal intubation is often used for invasive mechanical ventilation according to the patient's condition. It is an effective means of treating moderate to severe respiratory failure and ARDS in clinical practice. The bite block is used in conjunction with the endotracheal tube to fix the endotracheal tube, prevent the patient from biting the tube, and protect the patient's teeth and oral tissues.
[0003] In current technology, patients with respiratory failure often have severe lung disease, and mechanical ventilation is an important treatment method for these patients. However, the use of mechanical ventilation presents several problems due to the fixed length of existing bite plates: 1. Poor adaptability: The difference in oral depth between children and adults leads to the tube being inserted too deeply or too superficially. 2. Compression damage: Too long bite plates can compress the pharynx, while too short ones cannot effectively prevent biting, both potentially causing tissue damage. 3. Inconvenient operation: Multiple sizes are required, increasing clinical preparation time and costs. Utility Model Content
[0004] This invention provides an adjustable endotracheal intubation mouthguard to address the shortcomings of existing mouthguards.
[0005] This utility model provides an adjustable endotracheal intubation mouthguard, including: a retractable auxiliary fixation component, a spiral structure, and a mouthguard fixing plate. The outer layer of the spiral structure is a nut structure, and the inner layer is a bolt structure. The mouthguard fixing plate and the nut structure are integrally formed. One end of the retractable auxiliary fixation component is provided with an anti-slip fixing plate, and the other end of the retractable auxiliary fixation component is wrapped with medical silicone.
[0006] According to the adjustable endotracheal intubation dental pad provided by this utility model, the spiral structure adjusts the extension length of the retractable auxiliary fixation component inside the oral cavity by rotating the relative displacement of the nut structure and the bolt structure.
[0007] According to the adjustable endotracheal intubation dental pad provided by this utility model, the retractable auxiliary fixing component is made of flexible metal or plastic material, and the curvature can be adjusted according to the shape of the oral cavity.
[0008] According to the adjustable endotracheal intubation dental pad provided by this utility model, the lateral dimension of the anti-slip fixing plate is larger than the cross-sectional diameter of the retractable auxiliary fixing component, which is used to prevent the entire device from sliding into the oral cavity.
[0009] According to the adjustable endotracheal intubation dental pad provided by this utility model, the medical silicone covers at least 5 mm of the contact area at the distal end of the retractable auxiliary fixation component.
[0010] According to the adjustable endotracheal intubation dental pad provided by this utility model, the outer surface of the nut structure is provided with anti-slip texture, which facilitates manual rotation and adjustment.
[0011] According to the adjustable endotracheal intubation dental pad provided by this utility model, the bolt structure and the retractable auxiliary fixing component are fixedly connected by a buckle or thread.
[0012] According to the adjustable endotracheal intubation dental pad provided by this utility model, the dental pad fixing plate has an arc-shaped structure that fits the patient's teeth or gum surface.
[0013] According to the adjustable endotracheal intubation dental pad provided by this utility model, the adjustment stroke of the spiral structure is 20-50mm.
[0014] According to the adjustable endotracheal intubation dental pad provided by this utility model, the medical silicone is a sterile and non-toxic material with a thickness of 1-3mm.
[0015] The adjustable endotracheal intubation bite block provided by this utility model can extend or shorten the length of the retractable auxiliary fixation component by adjusting the spiral structure, allowing for quick adjustment of the bite block length. An anti-slip fixing plate is located at the leftmost end of the retractable auxiliary fixation component to prevent it from sliding completely into the oral cavity and endangering patient safety. Meanwhile, the rightmost end of the bite block is made of medical-grade silicone material, reducing oropharyngeal pressure caused by length differences during use and improving patient comfort. It also reduces the problem of patients biting the tube due to bite block displacement, requiring medical staff to repeatedly fix the bite block and endotracheal tube, thus improving the work efficiency of medical staff. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the adjustable endotracheal intubation dental pad provided by this utility model;
[0018] Figure 2 This is a cross-sectional view of the adjustable endotracheal intubation dental pad provided by this utility model.
[0019] Figure label:
[0020] 100. Retractable auxiliary fixing components;
[0021] 110. Anti-slip fixing plate; 120. Medical-grade silicone;
[0022] 200. Spiral structure;
[0023] 210. Nut structure; 220. Bolt structure;
[0024] 300. Dental pad retainer. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0027] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" indicate the direction or positional relationship, which is usually based on Figure 1 The orientation and position of the adjustable endotracheal intubation bite block when it is normally placed are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0029] This utility model provides an adjustable endotracheal intubation dental pad, see [link to related product]. Figures 1-2It includes: a retractable auxiliary fixation component 100, a spiral structure 200, and a dental pad fixing plate 300. The outer layer of the spiral structure 200 is a nut structure 210, and the inner layer is a bolt structure 220. The dental pad fixing plate 300 and the nut structure 210 are integrally formed. One end of the retractable auxiliary fixation component 100 is provided with an anti-slip fixing plate 110, and the other end of the retractable auxiliary fixation component 100 is wrapped with medical silicone 120.
[0030] The dental splint retainer 300 is placed outside the patient's incisors to prevent the dental splint from sliding into the oral cavity. The retractable auxiliary fixation component 100, located on the right side of the dental splint retainer 300, is placed inside the patient's oral cavity and its length can be adjusted via the spiral structure 200. One end of the retractable auxiliary fixation component 100 is provided with an anti-slip fixation plate 110 to prevent the retractable auxiliary fixation component 100 from sliding completely into the oral cavity.
[0031] The length of the retractable auxiliary fixation component 100 can be extended or shortened by adjusting the spiral structure 200, allowing for quick adjustment of the bite pad length. An anti-slip fixing plate 110 is located at the leftmost end of the retractable auxiliary fixation component 100 to prevent it from sliding completely into the oral cavity and endangering patient safety. Meanwhile, the rightmost end of the bite pad is made of medical-grade silicone 120, reducing oropharyngeal pressure caused by length differences during bite pad use and improving patient comfort. This also reduces the problem of patients biting the endotracheal tube due to bite pad displacement, requiring medical staff to repeatedly fix the bite pad and endotracheal tube, thus improving the efficiency of medical staff.
[0032] In one embodiment, the spiral structure 200 adjusts the extension length of the retractable auxiliary fixing component 100 inside the oral cavity by rotating the relative displacement of the nut structure 210 and the bolt structure 220.
[0033] The spiral structure 200, through the rotating nut structure 210, adjusts the relative length of the bite block retainer 300 and the retractable auxiliary fixation component 100, thereby adjusting the extension length of the retractable auxiliary fixation component 100 within the oral cavity. This method allows for rapid adjustment of the bite block length to achieve the most suitable length, effectively improving the stability of endotracheal tube fixation and reducing pressure injuries caused by excessive length of the auxiliary fixation component inside the incisors.
[0034] For example, the spiral structure 200 includes a fastener for securing the length of the retractable auxiliary fastening member 100.
[0035] For example, the spiral structure 200 can be equipped with scale markings to facilitate quantitative adjustment.
[0036] In one embodiment, the retractable auxiliary fixing component 100 is made of flexible metal or plastic and its curvature can be adjusted to adapt to the shape of the oral cavity.
[0037] In one embodiment, the lateral dimension of the anti-slip fixing plate 110 is larger than the cross-sectional diameter of the retractable auxiliary fixing component 100, in order to prevent the entire device from sliding into the oral cavity.
[0038] In one embodiment, medical silicone 120 covers at least 5 mm of the contact area at the distal end of the retractable auxiliary fixation component 100.
[0039] In one embodiment, the outer surface of the nut structure 210 is provided with anti-slip texture to facilitate manual rotation and adjustment.
[0040] In one embodiment, the bolt structure 220 is fixedly connected to the retractable auxiliary fixing component 100 by a snap or thread.
[0041] In one embodiment, the dental pad retainer 300 has an arc-shaped structure that conforms to the surface of the patient's teeth or gums.
[0042] In one embodiment, the adjustment stroke of the spiral structure 200 is 20-50 mm.
[0043] In one embodiment, the medical silicone 120 is a sterile and non-toxic material with a thickness of 1-3 mm.
[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An adjustable endotracheal intubation bite block, characterized in that, include: The retractable auxiliary fixation component includes a spiral structure and a dental pad fixation plate. The outer layer of the spiral structure is a nut structure, and the inner layer is a bolt structure. The dental pad fixation plate and the nut structure are integrally formed. One end of the retractable auxiliary fixation component is provided with an anti-slip fixation plate, and the other end of the retractable auxiliary fixation component is wrapped with medical silicone.
2. The adjustable endotracheal intubation dental pad according to claim 1, characterized in that, The spiral structure adjusts the extension length of the retractable auxiliary fixing component within the oral cavity by rotating the relative displacement of the nut structure and the bolt structure.
3. The adjustable endotracheal intubation dental pad according to claim 2, characterized in that, The retractable auxiliary fixing component is made of flexible metal or plastic and its curvature can be adjusted to adapt to the shape of the oral cavity.
4. The adjustable endotracheal intubation dental pad according to claim 1, characterized in that, The lateral dimension of the anti-slip fixing plate is larger than the cross-sectional diameter of the retractable auxiliary fixing component, which is used to prevent the entire device from sliding into the oral cavity.
5. The adjustable endotracheal intubation dental pad according to claim 1, characterized in that, The medical-grade silicone covers at least 5 mm of the contact area at the distal end of the retractable auxiliary fixation component.
6. The adjustable endotracheal intubation dental pad according to claim 1, characterized in that, The outer surface of the nut structure is provided with anti-slip texture, which facilitates manual rotation and adjustment.
7. The adjustable endotracheal intubation dental pad according to claim 1, characterized in that, The bolt structure is fixedly connected to the retractable auxiliary fixing component by a snap or thread.
8. The adjustable endotracheal intubation dental pad according to claim 1, characterized in that, The dental pad retainer has an arc-shaped structure that fits the surface of the patient's teeth or gums.
9. The adjustable endotracheal intubation dental pad according to claim 1, characterized in that, The adjustment stroke of the spiral structure is 20-50mm.
10. The adjustable endotracheal intubation bite block according to claim 1, characterized in that, The medical-grade silicone is a sterile and non-toxic material with a thickness of 1-3mm.