Oral cavity mouth gag and waterproof and mist-proof isolator
By designing a waterproof fog barrier made of transparent plastic and an L-shaped oral opening device, and utilizing the snap-fit of fixed protrusions and holes, the problem of water mist entering the nasal cavity is solved, achieving a dual improvement in patient comfort and doctor's operating visibility.
Patent Information
- Application Number
- CN202322680287.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-08
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2033-10-08
AI Technical Summary
In dental surgery, current technology cannot effectively isolate water mist, causing it to enter the patient's nasal cavity, affecting the patient's comfort and interfering with the doctor's view during the procedure.
A fan-shaped waterproof fog isolator and oral cavity opening device were designed. The waterproof fog isolator and the oral cavity opening device are integrally molded from transparent plastic material. The fixed protrusion and fixed hole are used to make a snap-fit fit to achieve stable installation of the waterproof fog isolator, prevent water fog from entering the nasal cavity and ensure the doctor's operation vision.
It effectively prevents water mist from entering the nasal cavity, improves patient comfort, ensures unobstructed vision for doctors, simplifies the installation process, and reduces production costs.
Smart Images

Figure CN223542023U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical auxiliary device technology, specifically to an oral cavity opener and a waterproof fog barrier. Background Technology
[0002] When removing cavities from anterior teeth, the water mist generated by the dentist using a high-speed handpiece, as well as the water mist produced by the water flow colliding with the teeth or other parts, can easily enter the patient's nasal cavity, nostrils, and face due to the location of the anterior teeth, affecting the patient's comfort. In particular, entering the nasal cavity can easily cause the patient to cough or sneeze, thus affecting the dentist's operation. Existing rubber dams cannot completely isolate the water mist, and the use of rubber dams can affect the dentist's vision, requiring an assistant to assist in suctioning saliva. To address this, an oral cavity opener and a water mist isolator have been proposed, which can be operated independently by a single dentist. Utility Model Content
[0003] The purpose of this invention is to provide an oral cavity opener and a waterproof fog barrier to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a waterproof fog separator, which has a fan-shaped structure with a center angle of 110-135 degrees and at least one fixing hole at the bottom.
[0005] Furthermore, the waterproof fog barrier is a one-piece molded structure made of transparent plastic.
[0006] Furthermore, the waterproof fog barrier has two fixing holes at the bottom.
[0007] An oral mouth opener includes an opener body, a lower anterior tooth labial stop disposed at the bottom of the opener body, and an upper anterior tooth labial stop disposed at the top of the opener body. The upper anterior tooth labial stop has an L-shaped cross-section and an opening angle of 120-155 degrees. At least one fixed protrusion is provided at the top of the upper anterior tooth labial stop.
[0008] Furthermore, the oral cavity opener, lower anterior tooth labial guard, upper anterior tooth labial guard, and fixed protrusion are all integrally molded plastic structures.
[0009] Furthermore, the cross-sectional angle of the labial stop of the upper anterior teeth is 145 degrees.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This oral cavity opening device and waterproof fog isolator, through the setting of the waterproof fog isolator, uses a fixing protrusion to fix the position between the waterproof fog isolator and the oral cavity opening device. When the patient wears this oral cavity opening device during surgical procedures, the presence of the waterproof fog isolator can effectively prevent water mist from entering the patient's nasal cavity when using a high-speed handpiece to generate water mist, avoiding discomfort caused by water mist. The waterproof fog isolator is made of transparent material, and the oral cavity opening device does not obstruct the doctor's view excessively, ensuring the doctor's operating vision and improving the practicality of the device.
[0012] Meanwhile, by setting up the fixed protrusion, one fixing hole first contacts the outer wall of the column, then pull the waterproof fog separator so that another fixing hole contacts the outer wall of another column, and then move the waterproof fog separator so that the fixing hole contacts the inner wall of the deep groove, thus completing the installation of the waterproof fog separator. The fixed protrusion structure is simple and the installation process is simple. Attached Figure Description
[0013] Figure 1 This is an isometric drawing of the present invention;
[0014] Figure 2 This is an isometric drawing of the fixed protrusion of this utility model;
[0015] Figure 3 This is a front view of the waterproof fog separator after installation.
[0016] Figure 4 This is a side view of the anterior tooth labial guard in this practical application.
[0017] In the diagram: 1. Oral opening device; 2. Upper anterior tooth labial stop; 3. Lower anterior tooth labial stop; 4. Fixed protrusion; 401. Column; 402. Deep groove; 5. Waterproof fog barrier; 6. Fixing hole. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] The oral mouth opener 1 is an existing technology. The patient wears the oral mouth opener 1 between the outside of the teeth and the inside of the lips and buccal mucosa. The upper anterior tooth labial stopper 2 can block the upper lip, while the lower anterior tooth labial stopper 3 can block the lower lip. After the patient wears the oral mouth opener 1, the patient is always in an open state and cannot close his mouth.
[0020] like Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a waterproof fog separator, wherein the waterproof fog separator 5 has a fan-shaped structure, as shown in the reference. Figure 3 The included angle b is the included angle of the center of the waterproof fog isolator 5, with a range of 110-135 degrees. At least one fixing hole 6 is opened at the bottom. In this embodiment, the preferred solution is that two fixing holes 6 are opened at the bottom of the waterproof fog isolator 5.
[0021] The waterproof fog barrier 5 is a one-piece molded structure made of transparent plastic.
[0022] An oral mouth opener 1 includes a mouth opener body 1, a lower anterior tooth labial stop 3 disposed at the bottom of the mouth opener body 1, and an upper anterior tooth labial stop 2 disposed at the top of the mouth opener body. The upper anterior tooth labial stop 2 has an L-shaped cross-section. (Refer to...) Figure 4 The included angle α is the included angle of the cross section of the upper anterior tooth labial guard 2, with a range of 120-155 degrees. In this embodiment, the preferred angle is 145 degrees. At least one fixed protrusion 4 is provided at the top position of the upper anterior tooth labial guard 2. In this embodiment, the preferred solution is to provide two fixed protrusions 4. The connection between the oral cavity opener 1 and the waterproof fog isolator 5 is formed by the snap-fit cooperation of the fixed protrusions 4 and the fixed holes 6.
[0023] In this embodiment, the fixing protrusion 4 includes a column 401, which is fixedly installed on one side of the upper anterior tooth labial stop 2. The outer wall of the column 401 has a deep groove 402. In this embodiment, two fixing holes 6 and two corresponding fixing protrusions 4 are provided. (Refer to...) Figure 2 and Figure 3 The shortest distance between the outer walls of the two columns 401 is less than the shortest distance between the inner walls of the two fixing holes 6. During installation, first make the inner wall of one fixing hole 6 contact the outer wall of the column 401, then pull the waterproof fog isolator 5 to the other side, thus bending the waterproof fog isolator 5 to facilitate the installation between the waterproof fog isolator 5 and the oral cavity opener 1, so that the inner wall of the other fixing hole 6 contacts the outer wall of the other column 401. Release the waterproof fog isolator 5, ensuring that the inner wall of the fixing hole 6 on the waterproof fog isolator 5 contacts the inner wall of the deep groove 402. This completes the installation of the waterproof fog isolator 5. A transition fit is set between the width of the deep groove 402 and the thickness of the waterproof fog isolator 5 so that the waterproof fog isolator 5 will not loosen after installation.
[0024] The waterproof fog isolator 5 can be made of PVC material, so the waterproof fog isolator 5 itself is tough and can return to its original position after slight deformation. The size of the waterproof fog isolator 5 needs to be sufficient to cover the patient's nasal cavity. In order to ensure that the fixing protrusion 4 can be installed smoothly, the fixing protrusion 4 itself is made of a tough material.
[0025] The patient wears the oral mouth opener 1 between the outside of the teeth and the inside of the lips and buccal mucosa. The upper anterior tooth labial guard 2 can block the upper lip, while the waterproof mist isolator 5 can block the nasal cavity. Then the dentist can operate on the patient's anterior teeth and adjacent teeth. During the caries removal process, when the water mist generated by the spray spreads around the lips, the presence of the waterproof mist isolator 5 can effectively prevent the water mist from directly entering the patient's nasal cavity. Even if the water mist bypasses the waterproof mist isolator 5 and enters the patient's nasal cavity, the water mist will continue to spread during the movement, so that when the water mist reaches the patient's nasal cavity, it is not enough to cause the patient to cough or sneeze, thus avoiding the patient's discomfort.
[0026] To ensure a good patient experience and prevent water vapor from adhering to the waterproof fog isolator 5 or falling onto it due to the patient's breath, which could reduce the transparency of the waterproof fog isolator 5, an anti-fog film is installed to maintain the transparency of the waterproof fog isolator 5.
[0027] By using the waterproof fog isolator 5 and fixing the protrusion 4 to secure the position between the waterproof fog isolator 5 and the oral cavity opening device 1, the patient wears the oral cavity opening device 1 during surgical procedures. When water mist is generated by using a high-speed handpiece, the presence of the waterproof fog isolator 5 effectively prevents water mist from entering the patient's nasal cavity, avoiding discomfort caused by water mist. The waterproof fog isolator 5 is made of transparent material, and the oral cavity opening device 1 is not excessively obstructed, ensuring the doctor's operating vision and improving the practicality of the device. By using the fixing protrusion 4, one fixing hole 6 is first brought into contact with the outer wall of the column 401. Then, the waterproof fog isolator 5 is pulled so that another fixing hole 6 is brought into contact with the outer wall of another column 401. Finally, the waterproof fog isolator 5 is moved so that the fixing hole 6 is brought into contact with the inner wall of the deep groove 402, thus completing the installation of the waterproof fog isolator 5. The fixing protrusion 4 has a simple structure and simple installation process, low production cost, and improves the practicality of the device.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A waterproof fog barrier, characterized in that: The waterproof fog barrier has a fan-shaped structure with a central angle of 110-135 degrees and at least one fixing hole at the bottom.
2. The waterproof fog barrier according to claim 1, characterized in that: The waterproof fog barrier is made of soft plastic and has a one-piece molded structure that can be bent appropriately.
3. A waterproof fog barrier according to claim 1, characterized in that: The waterproof fog barrier has two fixing holes at the bottom.
4. A mouth opener, comprising a mouth opener body, a lower anterior tooth labial stop disposed at the bottom of the mouth opener body, and an upper anterior tooth labial stop disposed at the top of the mouth opener body, characterized in that: The upper anterior labial stop has an L-shaped cross-section with an opening angle of 120-155 degrees, and at least one fixed protrusion is provided at the top of the upper anterior labial stop.
5. The oral cavity opener according to claim 4, characterized in that: The mouth opening device, lower anterior tooth labial stop, upper anterior tooth labial stop, and fixed protrusion are all integrally molded plastic structures.
6. The oral cavity opener according to claim 4, characterized in that: The cross-sectional angle of the labial stop of the upper anterior teeth is 145 degrees.