Mouth gag

Abstract

The invention discloses a mouth opener, and belongs to the technical field of medical instruments, and the mouth opener comprises a fixing assembly, a mouth opening clamp fixedly connected to the fixing assembly, a tongue depressor arranged on the fixing assembly, and mouth tooth pads symmetrically and fixedly mounted on the side, away from the fixing assembly, of the mouth opening clamp; the cleaning structure is arranged on the two oral tooth pads and used for instilling liquid medicine or distilled water into the oral cavity to clean the oral cavity, and the collecting structure is arranged on the tongue depressor and used for sucking secretions and liquid in the oral cavity. According to the mouth gag, through collaborative design of the cleaning structure and the collecting structure, liquid medicine or distilled water which is continuously dripped is used for diluting blood and secretions in an oral cavity in real time, coagulation and blocking are avoided, meanwhile, the liquid suction assembly is used for synchronously sucking and removing diluted impurities, a clear surgical field is stably maintained, a doctor does not need to additionally use a cleaning instrument, and the working efficiency is improved. A doctor can concentrate on core surgery operation, surgery field waiting and cleaning time is shortened, and surgery fluency and efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, specifically a mouth opener. Background Technology

[0002] In the field of oropharyngeal surgery, mouth openers can create a clear and controllable operating space for medical staff. They are an indispensable core auxiliary device in clinical practice, and their performance is directly related to the accuracy, safety and overall efficiency of the surgery.

[0003] Chinese utility model patent CN215128316U discloses a mouth opener for oropharyngeal surgery. It achieves this by incorporating a mouth opener frame, an adjustable tongue depressor unit, and a lighting unit, thus maintaining the patient's open mouth and clearly exposing the surgical area. However, this mouth opener has a limited function, only capable of opening the mouth and depressing the tongue. During surgery, secretions, tissue debris, blood, and other impurities easily accumulate in the oral cavity. If these impurities are not removed promptly, they can contaminate the surgical area, obstruct vision, and require medical staff to frequently stop and use additional instruments to clean away blood and saliva, increasing the complexity of the procedure. Furthermore, it disrupts the surgical rhythm, prolongs waiting and cleaning time in the surgical field, and ultimately reduces overall surgical efficiency.

[0004] Therefore, this application provides a mouth opener to solve the above-mentioned problems. Summary of the Invention

[0005] This application provides a mouth opener, which aims to solve the problems mentioned in the background art, such as the existing mouth openers having a single function, being unable to simultaneously clean up secretions, tissue debris and blood generated during surgery, requiring additional auxiliary instruments and frequently interrupting the surgery, resulting in cumbersome operation and reduced surgical efficiency.

[0006] To achieve the above objectives, this application provides the following technical solution: a mouth opener, comprising a fixing component, a mouth opening clamp fixedly connected to the fixing component, a tongue depressor plate disposed on the fixing component, and a mouth tooth pad symmetrically fixedly installed on the side of the mouth opening clamp away from the fixing component; The mouth opener also includes a cleaning structure disposed on the two dental pads for dripping medication or distilled water into the oral cavity for cleaning, and a collection structure disposed on the tongue depressor for absorbing secretions and liquids in the oral cavity. The collection structure includes a suction component located at one end of the tongue depressor for absorbing oral debris, and an anti-clogging component located inside the tongue depressor to prevent the suction component from becoming clogged, thus ensuring unobstructed flow. Through the design of the cleaning and collection structures, continuously dripping medication or distilled water can instantly dilute blood and secretions in the oral cavity, preventing them from clotting. The diluted blood and secretions can then be simultaneously suctioned away by the suction component, maintaining a clear surgical field and eliminating the need for additional cleaning instruments. This allows the surgeon to focus more on the procedure, reducing waiting and cleaning time and improving the smoothness and efficiency of the surgery. Furthermore, the anti-clogging component allows the surgeon or assistant to clear the blockage from the inside when blood clots or tissue debris clog the suction component, restoring suction function and reducing surgical interruptions caused by instrument problems, further ensuring the continuity and safety of the surgery.

[0007] Preferably, to facilitate the assembly and use of the tongue depressor, the fixing assembly includes a fixing frame, a slot at the bottom of the fixing frame for inserting the tongue depressor, a locking clip at the top of the fixing frame for locking the position of the tongue depressor, a connecting frame fixedly connected to the middle of the locking clip and hinged to the top of the fixing frame, a spring fixedly connected to the fixing frame and fixedly connected to the bottom of the locking clip away from the tongue depressor for providing a pressing force to the locking clip, and a through slot on the fixing frame for the locking clip to pass through and press against the tongue depressor. Initial positioning is achieved by inserting the tongue depressor into the slot of the fixing frame, and the spring provides a continuous pressing force to the locking clip. The locking clip can pass through the through slot to pass through the fixing frame and press against the tongue depressor, thus facilitating the installation and removal of the tongue depressor, making operation convenient, and preventing displacement after locking.

[0008] Preferably, in order to provide multiple positioning positions for adjusting the length of the tongue depressor, the tongue depressor is provided with limiting grooves for the locking clip to abut and position. Multiple limiting grooves are provided and are linearly distributed along the length direction of the tongue depressor. The linear distribution of multiple limiting grooves along the length direction of the tongue depressor allows the end of the locking clip to be engaged in different limiting grooves, providing multiple selections for adjusting the length of the tongue depressor. This can flexibly adapt to the oral cavity depth and tongue position requirements of different patients, improving the flexibility and adaptability of the instrument.

[0009] Preferably, in order to achieve the dripping of medication or distilled water, the cleaning structure includes water inlet holes respectively opened at the bottom of the two mouth pads and evenly distributed for dripping medication or distilled water, and a connecting tube fixedly installed on the mouth clamp and communicating with the water inlet holes for connecting to an infusion tube to deliver medication or distilled water; medication or distilled water is introduced into the infusion tube through the connecting tube, and then the water inlet holes communicating with the connecting tube can be used to drip evenly from the bottom of the mouth pad to the periphery of the surgical area in the oral cavity, thereby moistening the surgical area, diluting debris, preventing secretions or blood from drying out, eliminating the need for additional handheld cleaning instruments, simplifying the operation process, and ensuring the timeliness of surgical area cleaning.

[0010] Preferably, in order to promptly remove secretions and blood from the oral cavity, the suction assembly includes water outlet holes evenly distributed at the bottom of the tongue depressor near the oral cavity for absorbing oral secretions and liquids, a channel disposed within the tongue depressor and communicating with the multiple water outlet holes, and a connecting tube two fixedly disposed on the tongue depressor and communicating with the end of the channel away from the water outlet holes for connecting to a suction device to provide suction. The negative pressure generated by the connecting tube two and the negative pressure is then transmitted to the multiple evenly distributed water outlet holes through the channel within the tongue depressor, which can achieve the adsorption and diversion of oral debris, thereby clearing debris around the surgical area, avoiding obstruction of vision, and ensuring the continuity of surgical operation without pausing the procedure for cleaning.

[0011] Preferably, to prevent clogging of the aspiration assembly, the anti-clogging assembly includes a push rod that passes through the channel and the tongue depressor and is slidably connected to the tongue depressor; a support rod that is fixedly connected to the push rod and corresponds to the multiple water outlets; and a reciprocating assembly located on the outside of the tongue depressor and connected to the push rod for reciprocating movement of the push rod. The reciprocating assembly drives the push rod to slide back and forth, and the support rod is inserted into the water outlet, which can pry open the blocked blood clots or tissue debris, restoring the channel's conductivity. This eliminates the need to disassemble the instrument or interrupt the surgery, making the operation simple and efficient, ensuring continuous and stable aspiration function, and guaranteeing that surgical efficiency and safety are not affected.

[0012] Preferably, to provide reciprocating driving force for the push rod, the reciprocating assembly includes a protective box fixedly installed on the outside of the tongue depressor near the oral cavity end for covering the end of the push rod; a rotating wheel disposed within the protective box; a rotating shaft passing through the rotating wheel and the protective box sequentially and rotatably connected to the protective box; a knob disposed on the outside of the protective box and fixedly connected to the rotating shaft; an eccentric shaft fixedly disposed on the side of the rotating wheel away from the rotating shaft and located within the protective box; and a connecting rod disposed within the protective box with its two ends rotatably connected to the eccentric shaft and the end of the push rod away from the passage, respectively. The rotating shaft is fixedly connected to the rotating wheel, and the eccentric shaft is eccentrically positioned. By rotating the knob, the rotating shaft and the rotating wheel are driven to rotate. The eccentrically positioned eccentric shaft can convert the rotational motion of the connecting rod into the linear reciprocating motion of the push rod, thereby realizing the reciprocating movement of the push rod. This facilitates medical personnel in performing anti-blockage operations. At the same time, the design of the protective box can protect the internal components and prevent them from being contaminated by pollutants.

[0013] Preferably, in order to ensure smooth sliding of the push rod and prevent liquid leakage in the channel, the tongue depressor and the protective box are fixedly provided with a sealing sleeve at the penetration position of the push rod for guiding and sealing the sliding of the push rod; by setting the sealing sleeve fixed at the penetration position of the tongue depressor and the protective box, it can fit tightly against the outer wall of the push rod, providing sliding guidance for the push rod and sealing the gap, thereby preventing liquid in the channel from leaking from the gap between the push rod and the instrument, ensuring stable negative pressure for liquid suction, and reducing the corrosion of surrounding components by the liquid.

[0014] This mouth opener, through its cleaning and collection structure design, can continuously drip medication or distilled water to instantly dilute blood and secretions in the oral cavity, preventing them from clumping together. The diluted blood and secretions can be simultaneously aspirated by the suction component, which not only maintains a clear surgical field but also eliminates the need for doctors to use additional cleaning instruments. This allows doctors to focus more on the surgical procedure, reduces waiting and cleaning time, and improves the smoothness and efficiency of the surgery. This mouth opener features an anti-blocking component. When blood clots or tissue debris block the suction component, the doctor or assistant can operate the anti-blocking component to clear the blockage from the inside and restore suction function. This reduces surgical interruptions caused by instrument problems and further ensures the continuity and safety of the surgery. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a mouth opener; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the structure of a fixing component in a mouth opener; Figure 4A schematic diagram of the water inlet hole in a mouth opener; Figure 5 This is a schematic diagram of the structure of a tongue depressor in a mouth opener; Figure 6 A schematic diagram of a collection structure in a mouth opener; Figure 7 This is a schematic diagram of the anti-clogging component in a mouth opener; Figure 8 This is a schematic diagram of the reciprocating component in a mouth opener.

[0016] In the picture: 1. Open mouth clamp; 2. Fixing component; 21. Fixing bracket; 22. Insertion slot; 23. Locking clip; 24. Connecting bracket; 25. Spring; 26. Through slot; 3. Tongue depressor; 31. Limiting groove; 4. Dental pad; 5. Cleaning structure; 51. Water inlet; 52. Connecting pipe one; 6. Collection structure; 61. Liquid suction assembly; 611. Water outlet; 612. Channel; 613. Connecting pipe II; 62. Anti-clogging assembly; 621. Push rod; 622. Support rod; 623. Reciprocating assembly; 6231. Protective box; 6232. Rotating wheel; 6233. Rotating shaft; 6234. Knob; 6235. Eccentric shaft; 6236. Connecting rod. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] This embodiment provides a mouth opener, such as Figures 1-8 As shown, the mouth opener includes a fixing component 2, a mouth opening clamp 1 fixedly connected to the fixing component 2, a tongue depressor 3 disposed on the fixing component 2, and mouth pads 4 symmetrically fixedly installed on the side of the mouth opening clamp 1 away from the fixing component 2; the mouth opener also includes a cleaning structure 5 disposed on the two mouth pads 4 for dripping medicine or distilled water into the oral cavity for cleaning, and a collection structure 6 disposed on the tongue depressor 3 for suctioning secretions and liquids in the oral cavity; the collection structure 6 includes a suction component 61 disposed at one end of the tongue depressor 3 for absorbing oral debris, and an anti-blocking component 62 disposed inside the tongue depressor 3 for preventing the suction component 61 from becoming blocked to achieve unobstructed flow.

[0019] In use, first assemble the tongue depressor 3 onto the fixing component 2, and use the fixing component 2 to lock the position of the tongue depressor 3 to ensure a stable installation. Then, place the mouth clamp 1 in the patient's mouth and support the upper and lower jaws, so that the dental pads 4, which are symmetrically fixed on the side of the mouth clamp 1 away from the fixing component 2, adhere to and fix the patient's incisors, avoiding damage to the oral mucosa by the instruments. At the same time, use the tongue depressor 3 to press the patient's tongue to fully expose the surgical area. Then, connect the infusion tube to the cleaning structure 5 and connect the suction device to the suction component 61 of the collection structure 6. Then, during the operation, the cleaning structure 5 can be opened through two... The oral pad 4 continuously drips medication or distilled water into the oral cavity to moisten the surgical area and dilute secretions, blood, and other debris. The suction component 61 simultaneously removes the diluted secretions, blood, and tissue debris, keeping the surgical area clear. When the suction component 61 becomes blocked, the doctor or assistant can operate the anti-blocking component 62 of the collection structure 6. The mechanical transmission of the anti-blocking component 62 drives the internal components to clear the suction component 61, ensuring that the suction function remains unobstructed. The entire process can be completed in a coordinated manner, including mouth opening support, tongue fixation, surgical area cleaning, debris removal, and anti-blocking.

[0020] Specifically, the fixing component 2 includes a fixing frame 21, a insertion slot 22 at the bottom of the fixing frame 21 for inserting the tongue depressor 3, a locking clip 23 at the top of the fixing frame 21 for locking the position of the tongue depressor 3, a connecting frame 24 fixedly connected to the middle of the locking clip 23 and hinged to the top of the fixing frame 21, a spring 25 fixedly connected to the fixing frame 21 and fixedly connected to the bottom of the locking clip 23 away from the tongue depressor 3 for providing a pressing force to the locking clip 23, and a through slot 26 on the fixing frame 21 for the locking clip 23 to pass through and press against the tongue depressor 3.

[0021] In order to provide multiple positioning positions for adjusting the length of the tongue depressor 3, the tongue depressor 3 is provided with limiting grooves 31 for the locking clip 23 to abut and position. Multiple limiting grooves 31 are provided and are linearly distributed along the length direction of the tongue depressor 3. The linear distribution of multiple limiting grooves 31 along the length direction of the tongue depressor 3 allows the end of the locking clip 23 to be inserted into different limiting grooves 31, providing multiple selections for adjusting the length of the tongue depressor 3. This can flexibly adapt to the oral cavity depth and tongue position requirements of different patients, improving the flexibility and adaptability of the instrument.

[0022] First, press the end of the locking clip 23 away from the tongue depressor 3, that is, the end of the locking clip 23 connected to the spring 25. Through the hinge action of the connecting frame 24, the end of the locking clip 23 near the tongue depressor 3 is lifted upward around the top of the fixing frame 21, so that the end of the locking clip 23 that passes through the through groove 26 is disengaged from the insertion groove 22 area. At this time, the spring 25 is compressed. Then, insert the tongue depressor 3 along the insertion groove 22 at the bottom of the fixing frame 21 to a depth suitable for the patient's oral cavity. Release the pressed locking clip 23. At this time, the spring 25 releases its elastic force and pushes... The locking clip 23 is reset upwards at the end away from the tongue depressor 3, causing the end of the locking clip 23 near the tongue depressor 3 to move downwards and pass through the through groove 26, finally abutting against the corresponding limiting groove 31 on the tongue depressor 3. Thus, the tongue depressor 3 can be positioned and locked by the tight fit between the locking clip 23 and the limiting groove 31. When it is necessary to adjust the length of the tongue depressor 3, the above operation of pressing the locking clip 23 can be repeated, and the tongue depressor 3 can be moved so that the locking clip 23 abuts against other limiting grooves 31, thereby completing the fixing of different length positions.

[0023] Furthermore, the cleaning structure 5 includes water inlet holes 51 that are respectively opened at the bottom of the two mouth pads 4 and are evenly distributed for dispensing medicine or distilled water, and a connecting pipe 52 that is fixedly installed on the mouth clamp 1 and communicates with the water inlet holes 51 for connecting the infusion tube to deliver medicine or distilled water. First, the infusion tube containing the medication or distilled water is fixedly connected to the connecting tube 52 on the mouth clamp 1 to ensure that the connection is sealed and leak-free. Then, during the operation, the medication or distilled water can be delivered through the connecting tube 52 to the two oral pads 4 connected to the connecting tube 52, and then dripped evenly into the surgical area and surrounding area of ​​the oral cavity through the water inlet holes 51 evenly distributed at the bottom of the oral pad 4 to achieve the cleaning effect of moistening the surgical area and diluting the debris.

[0024] Furthermore, the liquid suction assembly 61 includes water outlet holes 611 evenly distributed at the bottom of the tongue depressor 3 near the oral cavity for absorbing oral secretions and liquids, a channel 612 disposed in the tongue depressor 3 and communicating with the multiple water outlet holes 611, and a connecting tube 613 fixedly disposed on the tongue depressor 3 and communicating with the end of the channel 612 away from the water outlet holes 611 for connecting with a suction device to provide suction. First, seal the suction device to the connecting tube 613 on the tongue depressor 3. After starting the suction device, the negative pressure generated by the suction device will be conducted to the channel 612 inside the tongue depressor 3 through the connecting tube 613. At this time, the channel 612 will evenly transmit the negative pressure to the multiple water outlets 611 evenly distributed at the bottom of the end near the oral cavity. Utilizing the negative pressure adsorption effect, secretions, diluted liquids and tissue debris in the oral cavity will enter the channel 612 through the water outlets 611 and then be discharged by the suction device through the connecting tube 613, thereby realizing the adsorption and discharge of oral debris.

[0025] Furthermore, the anti-clogging component 62 includes a push rod 621 that passes through the channel 612 and the tongue depressor 3 and is slidably connected to the tongue depressor 3; a support rod 622 that is fixedly connected to the push rod 621 and is correspondingly arranged with multiple water outlets 611; and a reciprocating component 623 that is arranged on the outside of the tongue depressor 3 and connected to the push rod 621 for reciprocating movement of the push rod 621. The reciprocating component 623 includes a protective box 6231 that is fixedly installed on the outside of the tongue depressor 3 near the oral cavity end for covering the end of the push rod 621; a rotating wheel 6232 arranged in the protective box 6231; and a support rod 622 that passes through the channel 612 and the tongue depressor 3 and is slidably connected to the tongue depressor 3. The rotating wheel 6232 and the protective box 6231 are rotatably connected to the protective box 6231. A rotating shaft 6233 is rotatably connected to the protective box 6231. A knob 6234 is located on the outside of the protective box 6231 and fixedly connected to the rotating shaft 6233. An eccentric shaft 6235 is fixedly located on the side of the rotating wheel 6232 away from the rotating shaft 6233 and inside the protective box 6231. A connecting rod 6236 is located inside the protective box 6231 and its two ends are rotatably connected to the eccentric shaft 6235 and the push rod 621 at the ends away from the channel 612, respectively. The rotating shaft 6233 is fixedly connected to the rotating wheel 6232. The eccentric shaft 6235 is eccentrically set. When the suction assembly 61 becomes clogged, medical staff can rotate the knob 6234 on the outside of the protective box 6231. The knob 6234 will then drive the rotating shaft 6233, which is fixedly connected to it, to rotate synchronously. The rotating shaft 6233 will then drive the rotating wheel 6232 inside the protective box 6231 to rotate as well. Since the eccentric shaft 6235 is eccentrically positioned and fixed on the side of the rotating wheel 6232 away from the rotating shaft 6233, the rotation of the rotating wheel 6232 will drive the eccentric shaft 6235 to perform circular motion. Furthermore, since the two ends of the connecting rod 6236 are respectively connected to the eccentric shaft 6235 and the push rod 621 for rotational movement... Therefore, the circular motion of the eccentric shaft 6235 can be converted into the linear reciprocating motion of the push rod 621. The push rod 621 can slide along the pressure plate 3 and drive the support rods 622, which are corresponding to the multiple water outlets 611, to move back and forth synchronously. As the multiple support rods 622 move back and forth, they can reciprocate into or out of the water outlets 611, thereby clearing the debris blocking the water outlets 611 or the channels 612 and unblocking the liquid suction assembly 61. The design of the protective box 6231 can protect the internal components such as the rotating wheel 6232 and the eccentric shaft 6235.

[0026] In addition, to ensure smooth sliding of the push rod 621 and prevent liquid leakage in the channel 612, the tongue depressor 3 and the protective box 6231 are fixedly provided with sealing sleeves at the corresponding penetration positions of the push rod 621 for guiding and sealing the sliding of the push rod 621. By fixing the sealing sleeves at the penetration positions of the tongue depressor 3 and the protective box 6231, they can fit tightly against the outer wall of the push rod 621, providing sliding guidance for the push rod 621 and sealing the gaps, thereby preventing liquid in the channel 612 from leaking from the gap between the push rod 621 and the instrument, ensuring stable negative pressure for liquid suction, and reducing the corrosion of surrounding components by the liquid.

[0027] It should be noted that both connecting tube 52 and connecting tube 613 are equipped with Luer connectors. The standardized conical mating structure of the Luer connectors can achieve a quick and sealed connection with the infusion tube and aspirator. In addition, the surfaces of the support rod 622 and the push rod 621 are designed to be smooth to reduce the residue of secretions or blood.

[0028] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A mouth opener, comprising a fixing component (2), a mouth opening clamp (1) fixedly connected to the fixing component (2), a tongue depressor (3) disposed on the fixing component (2), and a mouth tooth pad (4) symmetrically fixedly installed on the side of the mouth opening clamp (1) away from the fixing component (2). Its features are: The mouth opener also includes a cleaning structure (5) disposed on the two dental pads (4) for dripping medicine or distilled water into the oral cavity for cleaning, and a collection structure (6) disposed on the tongue depressor (3) for suctioning secretions and liquids from the oral cavity. The collection structure (6) includes a suction component (61) disposed at one end of the tongue depressor (3) for adsorbing oral debris and an anti-blocking component (62) disposed inside the tongue depressor (3) for preventing the suction component (61) from becoming blocked to achieve unobstructed flow.

2. The mouth opener according to claim 1, characterized in that: The fixing component (2) includes a fixing frame (21), a insertion slot (22) opened at the bottom of the fixing frame (21) for the tongue depressor (3) to be inserted, a locking clip (23) set at the top of the fixing frame (21) for locking the position of the tongue depressor (3), a connecting frame (24) fixedly connected to the middle of the locking clip (23) and hinged to the top of the fixing frame (21), a spring (25) fixedly connected to the fixing frame (21) and fixedly connected to the bottom of the locking clip (23) away from the tongue depressor (3) for providing a pressing force to the locking clip (23), and a through slot (26) opened on the fixing frame (21) for the locking clip (23) to pass through and press against the tongue depressor (3).

3. The mouth opener according to claim 2, characterized in that: The tongue depressor (3) is provided with a limiting groove (31) for the locking clip (23) to abut and position. There are multiple limiting grooves (31), and the multiple limiting grooves (31) are linearly distributed along the length direction of the tongue depressor (3).

4. The mouth opener according to claim 1, characterized in that: The cleaning structure (5) includes water inlet holes (51) that are opened at the bottom of the two mouth pads (4) and are evenly distributed for dispensing medicine or distilled water, and a connecting pipe (52) that is fixed on the mouth clamp (1) and communicates with the water inlet holes (51) for connecting the infusion tube to deliver medicine or distilled water.

5. The mouth opener according to claim 4, characterized in that: The suction assembly (61) includes water outlet holes (611) formed at the bottom of the tongue depressor (3) near the oral cavity and evenly distributed for adsorbing oral secretions and liquids, a channel (612) disposed in the tongue depressor (3) and communicating with the multiple water outlet holes (611), and a connecting tube (613) fixedly disposed on the tongue depressor (3) and communicating with the end of the channel (612) away from the water outlet holes (611) for connecting with a suction device to provide suction.

6. The mouth opener according to claim 5, characterized in that: The anti-clogging component (62) includes a push rod (621) that passes through the channel (612) and the tongue depressor (3) and is slidably connected to the tongue depressor (3), a support rod (622) that is fixedly connected to the push rod (621) and is arranged corresponding to the plurality of water outlets (611), and a reciprocating component (623) that is arranged on the outside of the tongue depressor (3) and connected to the push rod (621) for reciprocating movement of the push rod (621).

7. The mouth opener according to claim 6, characterized in that: The reciprocating assembly (623) includes a protective box (6231) fixedly installed on the outside of the tongue depressor (3) near the oral cavity for covering the end of the push rod (621), a rotating wheel (6232) disposed inside the protective box (6231), a rotating shaft (6233) passing through the rotating wheel (6232) and the protective box (6231) and rotatably connected to the protective box (6231), and a rotating shaft (6233) disposed on the outside of the protective box (6231) and fixedly connected to the rotating shaft (6233). The device includes a knob (6234), an eccentric shaft (6235) fixedly disposed on the side of the rotating wheel (6232) away from the rotating shaft (6233) and located in the protective box (6231), and a connecting rod (6236) disposed in the protective box (6231) and rotatably connected at both ends to the eccentric shaft (6235) and the push rod (621) away from the channel (612), respectively. The rotating shaft (6233) is fixedly connected to the rotating wheel (6232), and the eccentric shaft (6235) is eccentrically disposed.

8. The mouth opener according to claim 7, characterized in that: The tongue depressor (3) and the protective box (6231) are fixedly provided with sealing sleeves at the through position of the push rod (621) for sliding guidance and sealing of the push rod (621).

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