Electric handheld oral cavity fluorine coating device

Abstract

The utility model discloses an electric handheld oral cavity fluorine coating device which comprises a tooth socket, a main body assembly and a bottle body which are detachably arranged, the main body assembly comprises a power supply, a peristaltic pump and a control unit, and the control unit comprises a gear module, a liquid supply module and a liquid suction module; side walls respectively extend upwards and downwards along the outer edge of the tooth socket main body, and grooves with closed side walls are respectively formed in the upper surface and the lower surface of the tooth socket main body and are used for accommodating an upper tooth jaw and a lower tooth jaw; a first flow guide pipeline and a second flow guide pipeline are arranged in the tooth socket main body in parallel and extend from the first / second fluorine inlet / outlet to two end parts of the tooth socket main body; the first flow guide pipeline is provided with a plurality of liquid outlets which reach the upper surface of the tooth socket main body, and the second flow guide pipeline is also provided with a plurality of liquid outlets which reach the lower surface of the tooth socket main body; and the liquid outlets are uniformly distributed on the upper surface and the lower surface of the tooth socket main body along the U-shaped structure of the tooth socket main body.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to an electric handheld oral fluoride coating device for preventing dental caries. Background Art

[0002] Dental caries is a common oral disease in clinical practice. Fluoride is the most widely used and effective method for preventing dental caries. Fluoridation involves applying a fluoride-containing coating to the surface of teeth. Fluoridation promotes further mineralization and enhances resistance to external corrosion. It can also reduce damage to tooth enamel, thereby preventing dental caries or preventing further progression.

[0003] Fluoride can be applied to teeth at any age. Common fluoride protection methods used to prevent tooth decay include fluoride foam, fluoride varnish, and fluoride film. Existing fluoride foam methods utilize fluoride trays, which can cause nausea and vomiting due to improper tray size and positioning. Existing fluoride application devices require medical staff to apply the fluoride to each tooth individually with a small brush, requiring repeated dipping of the brush into the solution, resulting in low efficiency. Furthermore, manual fluoride application cannot fully cover the pits and fissures on the teeth, inevitably leaving areas untouched and affecting the effectiveness of the fluoride application. Summary of the Invention

[0004] The utility model aims to address the deficiencies of the existing technology and provide an electric handheld oral fluoride coating device for preventing tooth decay. The fluoride coating device includes a liquid supply module and a liquid suction module, so that the prepared fluoride foam flows evenly into the grooves on the upper and lower surfaces of the braces through a pipeline at a preset speed and time and is distributed therein. After a preset time, the fluoride foam flows into the bottle body through the pipeline at a preset speed and time to discharge the fluoride foam in the braces. The pipeline can also be cleaned as needed.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] An electric handheld oral fluoride coating device, comprising a dental brace, a main body assembly and a bottle body; the dental brace is detachably provided on the top of the main body assembly, and the bottle body is detachably provided on the bottom of the main body assembly;

[0007] The main assembly includes a power supply, a peristaltic pump and a control unit, and the control unit includes a gear module, a liquid supply module, a liquid suction module, a button and an LED gear light bar;

[0008] The brace comprises a brace body, side walls extending upward and downward along the outer edge of the brace body, respectively, and a groove with closed side walls formed on the upper and lower surfaces of the brace body for accommodating the upper and lower jaws; the groove comprises a labial side wall located on the front side thereof, a lingual side wall located on the rear side thereof, and an end side wall connecting the ends of the labial side wall and the lingual side wall;

[0009] A first guide pipe and a second guide pipe are provided inside the braces body, and the first guide pipe and the second guide pipe are arranged up and down inside the braces body, and the pipes of the first guide pipe and the second guide pipe extend from the central area of the lip side wall to the vicinity of the two end side walls, and a plurality of liquid outlets are extended from the outer wall of the pipe to the upper surface / lower surface of the braces body, and the liquid outlets are evenly distributed along the U-shaped structure of the braces body; the liquid inlets of the first guide pipe and the second guide pipe are the first fluorine inlet and exhaust port and the second fluorine inlet and exhaust port that pass through the lip side wall; and the first fluorine inlet and exhaust port and the second fluorine inlet and exhaust port are arranged up and down, one end of the first fluorine inlet and exhaust port is connected to the bottle body through a hose and a peristaltic pump, and the other end is connected to the first guide pipe; one end of the second fluorine inlet and exhaust port is connected to the bottle body through a hose and a peristaltic pump The hose and the peristaltic pump are connected to the bottle body, and the other end is connected to the second diversion pipeline; the first diversion pipeline and the second diversion pipeline are arranged up and down and are parallel to each other inside the braces body, extending from the first / second fluorine inlet and outlet ports to the two ends of the braces body; and the first diversion pipeline has multiple liquid outlets reaching the upper surface of the braces body, and the second diversion pipeline also has multiple liquid outlets reaching the lower surface of the braces body; and the liquid outlets are evenly distributed on the upper and lower surfaces of the braces body; in particular, the liquid outlets correspond to the multiple holes opened on the upper and lower surfaces of the braces body respectively, and the holes are evenly distributed on the upper and lower surfaces of the braces body along the U-shaped structure of the braces body, so that the fluorinated foam can synchronously and evenly cover the groove.

[0010] The control unit includes a gear module, a liquid supply module, and a liquid suction module. The gear module includes multiple gears for discharging fluorinated foam, each corresponding to a different peristaltic pump operating time and fluorinated foam output. The selected gear is displayed on the gear light bar. The liquid supply module is used to drive the peristaltic pump according to the selected gear module, according to the specified liquid output and time, so that the fluorinated foam in the bottle flows through the peristaltic pump, the hose, the first fluorine inlet and outlet ports, the second fluorine inlet and outlet ports, the first diversion pipe, the second diversion pipe, and then enter the groove of the brace through the hole located in the brace body. The liquid suction module is used to drive the peristaltic pump according to the user's operation at a preset speed and time, so that the fluorinated foam and oral saliva in the groove of the brace flow through the hole located in the brace body, through the first diversion pipe, the second diversion pipe, the first fluorine inlet and outlet ports, the second fluorine inlet and outlet ports, the hose, the peristaltic pump, and then return to the bottle.

[0011] Furthermore, the bottle body is a disposable fluorinated foam tank; when the liquid supply module is working (i.e., supplying liquid to the braces), it is used to accommodate the fluorinated foam to be entered into the braces; when the liquid suction module is working, it is used to accommodate the fluorinated foam discharged from the braces.

[0012] Furthermore, the control unit further includes a cleaning module, which is used to drive the peristaltic pump to work at a preset speed and time according to user operation, so that the cleaning liquid in the bottle flows through the peristaltic pump, the hose, the first fluorine inlet and outlet port, the second fluorine inlet and outlet port, the first diversion pipeline, the second diversion pipeline in sequence, and enters the groove of the braces through the hole portion located on the braces body, thereby cleaning the pipelines and braces of the device;

[0013] When the cleaning module is working, the bottle body serves as a cleaning tank containing cleaning liquid.

[0014] Furthermore, the top of the lingual side wall of the groove on the upper surface of the braces body is higher than the top of the labial side wall, and the top of the end side wall is lower than the top of the labial side wall; the top of the lingual side wall of the groove on the lower surface of the braces body is lower than the top of the labial side wall, and the top of the end side wall is lower than the top of the labial side wall.

[0015] Furthermore, a lingual baffle is provided on the outer wall of the lingual side wall for cooperating with the labial side wall and the lingual side wall to prevent the fluoride foam from being swallowed.

[0016] Furthermore, the diameters of the first and second flow guide pipes are adapted to their corresponding holes and the first and second fluorine inlet and outlet ports; preferably, the diameters of the first and second flow guide pipes are preferably 1 mm, so that the fluorinated foam entering the groove has similar heights in the front and back of the braces.

[0017] Furthermore, the liquid outlet flow rate of the peristaltic pump is 3-5 ml / s.

[0018] Furthermore, the braces are selected from U-shaped braces integrally formed of natural silicone rubber or medical TPE, and the average thickness of the braces body is 3-4 mm.

[0019] Furthermore, the size of the braces is adapted to children and adults, and is particularly suitable for use by people of all ages.

[0020] Furthermore, the connection method between the bottle cap and the bottle body is selected from: threaded connection, embedded connection or plug-in connection.

[0021] Furthermore, the control unit also includes a button and a gear light bar. The button is electrically connected to the control circuit in the control unit and is used to control the gear module, liquid supply module, liquid suction module and cleaning module; the gear light bar is also electrically connected to the control circuit in the control unit; the gear light bar is used to display the gear selected by the user.

[0022] The combination of the buttons and the gear light bar can satisfy the adjustment indication function and enrich the human-computer interaction experience.

[0023] Compared with the prior art, the beneficial effects brought about by the technical solution of the utility model are:

[0024] The electric handheld oral fluoride coating device is simple to operate and easy to use. The gear module pre-sets the amount of fluoride foam and time suitable for the user, allowing the user to easily select the corresponding gear according to the operating instructions. After the predetermined time is reached, it can automatically suck back the fluoride and oral saliva in the mouth to prevent the user from swallowing it by mistake. It can be regarded as a family-style oral fluoride coating doctor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an exploded view of the electric handheld oral fluoride coating device described in the present utility model;

[0026] Figure 2a 2b is a side view and a front view of the overall structure of the electric handheld oral fluoride coating device of the present invention;

[0027] Figure 3a is a three-dimensional diagram of the braces, Figure 3b is a top view of the braces, Figure 3c is a side view of the braces,

[0028] Figure 3d is a rear view of the braces;

[0029] Figure 4 is a front view of the braces;

[0030] Figure 5 yes Figure 4 BB cross-sectional diagram;

[0031] Figure 6 It is a schematic diagram of the flow path of the liquid supply module.

[0032] In the picture:

[0033] 1: Mounting plate; 2: Screws; 3: Peristaltic pump; 4: Base; 5: Housing; 6: Battery compartment;

[0034] 7: Battery; 8: Top cover; 9: Control unit; 10: Button; 11: Battery compartment cover; 12: Braces;

[0035] 13: First hose; 14: Second hose; 15: Bottle cap; 16: Bottle body; 17: Straw;

[0036] 18: groove; 19: lingual side baffle; 20: labial side wall; 21: lingual side wall; 22: end side wall

[0037] 23: First fluorine inlet and outlet; 24: Second fluorine inlet and outlet; 25: Hole; 26: First flow guide pipe;

[0038] 27: The second diversion pipeline. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions, beneficial effects and significant progress of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below in combination with the drawings provided in the examples of the present invention. Obviously, all the described embodiments are only partial embodiments of the present invention, rather than all embodiments; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] In the description of this application, unless otherwise expressly specified or limited, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more; unless otherwise specified or explained, the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; "connected" can mean a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0041] like Figure 1 , Figure 2a 2b shows an electric handheld oral fluoride coating device, comprising a dental brace 12, a main body component and a bottle body 16. The dental brace 12 is detachably provided on the top of the main body component, and the bottle body 16 is provided on the bottom of the main body component.

[0042] The main assembly includes a housing 5, a battery, a control unit, and a base 4. The housing 5 is a cylindrical structure with holes in its sidewalls. The housing 5 has a top cover 8 on top and a mounting plate 1 on the bottom. The top cover 8 and mounting plate 1 are threadedly connected to the ends of the housing 5. The top of the top cover is fixedly mounted with the dental brace 12, and the bottom of the mounting plate 1 is fixedly connected to the base 4.

[0043] A peristaltic pump 3 is arranged in the space formed by the mounting plate 1 and the base 4, and is fixedly connected to the mounting plate 1 by screws. The pipeline of the peristaltic pump 3 extends into the bottle body 16, and the outlet of the peristaltic pump is connected to the first hose 13 and the second hose 14 respectively. The bottom of the base 4 is detachably connected to the bottle cap 15, and the bottom of the bottle cap 15 is threadedly connected to the bottle body 16. The bottle body 16 is used to accommodate the fluorinated foam to be introduced into the braces or the fluorinated foam discharged from the braces. When the liquid supply module is working (i.e., supplying liquid to the braces 12), the bottle body 16 is a disposable fluorinated foam tank for accommodating the fluorinated foam to be introduced into the braces; when the liquid aspiration module is working, the bottle body 16 is a disposable fluorinated foam tank for accommodating the fluorinated foam discharged from the braces.

[0044] Figure 3a As shown in Figures 3b, 3c, and 3d, the braces 12 are U-shaped braces made of medical TPE material, including a braces body with an average thickness of 3.2 mm. Side walls extend upward and downward along the outer edge of the braces body, and a groove 18 with closed side walls is formed on the upper surface of the braces body to accommodate the upper jaw of children / adults. A groove 18 with closed side walls is formed on the lower surface of the braces body to accommodate the lower jaw of children / adults. The groove structures on the upper and lower surfaces of the braces body are the same, and the size of the braces is adapted to children / adults. In this embodiment, multiple braces of different widths can be detachably set, which are suitable for children / adult jaws of different sizes. The braces are made of TPE material that can be disinfected and cleaned. In addition, the braces include children's version braces, adolescent version braces, adult version braces, and orthodontic version braces.

[0045] The front side of the groove 18 of the braces body is provided with a labial side wall 20, and the rear side of the groove is provided with a lingual side wall 21. The arc-shaped end wall formed by the two ends of the labial side wall 20 and the lingual side wall 21 (i.e., the two ends of the braces body) is the end side wall 22. Figure 3a 、 Figure 3c 、 Figure 4 It can be clearly seen that the top of the lingual side wall 21 of the groove on the upper surface of the braces body is higher than the top of the labial side wall 20, and the top of the end side wall 22 is lower than the top of the labial side wall 20; the top of the lingual side wall 21 of the groove on the lower surface of the braces body is lower than the top of the labial side wall 20, and the top of the end side wall 22 is lower than the top of the labial side wall 20. Figure 4 The upper part corresponds to the groove for the upper jaw to occlude. Figure 4 The lower part corresponds to the groove for the lower jaw to occlude. Therefore, the top of the end side wall 22 is the lowest point of the brace body, that is, the maximum amount of fluorine that the groove of the brace body can accommodate depends on the height of the end side wall 22.

[0046] like Figure 4-5 As shown, a lingual baffle 19 is also provided on the outer wall of the lingual side wall 21 for cooperating with the labial side wall 20 and the lingual side wall 21 to prevent the swallowing of fluorinated foam. The center point of the free end of the lingual side baffle 19 is about 15 mm away from the center of the braces body, and the center point of the free end of the lingual side baffle 19 is about 20 mm away from the end of the end side wall 22. The widest part of the lingual side baffle 19 is about 16 mm, the thickness is about 3 mm, and the vertical distance between the upper surface of the lingual side baffle 19 and the end face of the labial side wall 20 on the lower surface of the braces is about 11.5 mm. Two interfaces are provided along the thickness direction of the labial side wall 20 and through the labial side wall, namely the first fluorine inlet and outlet port 23 and the second fluorine inlet and outlet port 24. The first fluorine inlet and outlet port 23 and the second fluorine inlet and outlet port 24 are arranged vertically and pass through the middle of the lip side wall 20, and one end of the first fluorine inlet and outlet port 23 is connected to the bottle body 16 through a hose and a peristaltic pump, and the other end is connected to the first guide pipe 26; one end of the second fluorine inlet and outlet port 24 is connected to the bottle body 16 through a hose and a peristaltic pump, and the other end is connected to the second guide pipe 27. The first guide pipe 26 and the second guide pipe 27 are arranged in parallel inside the braces body, and are both U-shaped pipes, extending from the first / second fluorine inlet and outlet ports to the two ends of the braces body. The first guide pipe 26 is provided with a plurality of liquid outlets, and the liquid outlets are the four holes 25 provided on the upper surface of the braces body. The second guide pipe 27 is also provided with a plurality of liquid outlets, and the liquid outlets correspond to the four holes 25 provided on the lower surface of the braces body. The holes 25 are evenly distributed on the upper and lower surfaces of the braces body along the U-shaped structure of the braces body, as shown in FIG. Figure 5 As shown, the fluorinated foam can cover the groove 18 synchronously and evenly. Figure 5 The first guide pipe 26 and the second guide pipe 27 do not reach the groove of the braces body because Figure 5 The middle is a BB cross-sectional view, in which no liquid outlet is provided.

[0047] The diameters of the first and second flow guide pipes are adapted to the corresponding holes and the first and second fluorine inlet and outlet ports 23 and 24. The diameters of the first and second flow guide pipes are preferably 1 mm, so that the fluorinated foam entering the groove has a similar height in the front and back of the braces.

[0048] The housing 5 includes a control unit and a battery 7, and the battery 7 is electrically connected to the control unit and the peristaltic pump 3 respectively, and is used to power the control unit and the peristaltic pump. The battery 7 is placed in the battery compartment 6, and a battery compartment cover 11 is provided at the bottom of the battery compartment 6, and the battery compartment cover 11 is fixedly provided in the housing 5. A control unit 9 is provided on the side wall of the battery compartment 6. The control unit 9 includes a gear module, a liquid supply module, a liquid suction module, a cleaning module, a button 10 and an LED gear light bar. The gear module includes multiple gears for discharging fluorinated foam, the first gear corresponds to 9ml and the working time of the peristaltic pump 3 is 3s, the second gear corresponds to 13ml and 5s, and the third gear corresponds to 21ml and 7s, and the selected gear is displayed on the gear light bar. The liquid supply module is used to drive the peristaltic pump 3 to work according to the specified liquid output and time according to the gear of the selected gear module, so that the fluorinated foam in the bottle body 16 flows into the groove of the braces 12. The liquid suction module is used to drive the peristaltic pump 3 to work at a preset speed and time according to the user's operation, so that the fluorinated foam and oral saliva in the groove of the braces 12 flow back into the bottle body 16.

[0049] The positions of the button 10 and the gear light bar are aligned with the positions of the holes on the side wall of the housing 5, so that the button 10 and the gear light bar can protrude from the housing 5, which is convenient for user operation and viewing. The button 10 is electrically connected to the control circuit in the control unit, and is used to control the gear module, liquid supply module, liquid suction module and cleaning module; the gear light bar is also electrically connected to the control circuit in the control unit. The button includes a switch, an adjustment button and a cleaning button. When the switch and the adjustment button are pressed for the first time, the device turns on. When pressed again, it is used to select the gear of the fluorinated foam, and the selected gear is displayed on the gear light bar accordingly. When the switch and the adjustment button are adjusted to the maximum gear, the machine turns off when the button is pressed for 2-5 seconds. The cleaning button is used to start the cleaning module, which is used to clean the pipes in the device after the fluorine coating is completed, so as to achieve cleanliness and hygiene of the pipes in the machine.

[0050] When the user is a child, the working process of the electric handheld oral fluoride coating device is as follows:

[0051] Insert the child version of the braces 12 (i.e., the braces are suitable for children's mouths) on the top of the housing 5 and put it into the child's mouth. The child bites the upper and lower jaws on the braces body; click the switch and adjustment button to start the electric handheld oral fluoride coating device. The user presses the switch and adjustment button again to adjust the gear (such as the second gear) for 2 seconds, and the electric handheld oral fluoride coating device starts working;

[0052] The control unit starts the peristaltic pump 3 according to the selected gear position, and the peristaltic pump 3 draws the fluorinated foam from the disposable fluorinated foam tank (bottle 16) containing the fluorinated foam with a good concentration according to the specified liquid output and time, and makes the fluorinated foam flow through the pipeline in sequence (such as Figure 6 As shown) the bottle body 16, the hose, the first fluorine inlet and outlet port 23, the second fluorine inlet and outlet port 24, the first guide pipe, the second guide pipe, and enter the groove of the mouthpiece 12 through the hole 15 located on the mouthpiece body, and start to uniformly and quantitatively deliver fluorinated foam at a preset speed of 3 ml / s;

[0053] After a preset time, the peristaltic pump 3 stops working; after another 3 minutes, the peristaltic pump 3 starts working, and the fluorinated foam and oral saliva in the groove flow through the hole 15 located on the braces body in sequence: the first diversion pipe, the second diversion pipe, the first fluorine inlet and outlet port 23, the second fluorine inlet and outlet port 24, the hose, and then return to the disposable fluorinated foam tank;

[0054] The child's teeth are removed from the mouthpiece, and the disposable fluorinated foam canister is removed and replaced with a cleaning canister containing a cleaning solution;

[0055] Click the cleaning button, the peristaltic pump 3 starts working, the peristaltic pump 3 draws the cleaning liquid from the cleaning tank containing the cleaning liquid, and makes the cleaning liquid flow through the pipeline in sequence (such as Figure 6 (as shown) the bottle body 16, the hose, the first fluorine inlet and outlet port 23, the second fluorine inlet and outlet port 24, the first guide pipe, the second guide pipe, and enter the groove of the brace 12 through the hole 15 located on the brace body, and start to uniformly and quantitatively deliver the cleaning liquid to the brace at a preset speed, so that the cleaning liquid cleans the pipes and brace of the device;

[0056] After a preset time, the buzzer set in the control unit starts and plays a prompt tone. The user presses and holds the switch and adjustment button for 2-5 seconds to turn off the device.

[0057] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electric handheld oral fluoride coating device, characterized in that: It comprises a dental brace (12), a main body component and a bottle body (16); the top of the main body component is detachably connected to the dental brace (12), and the bottom of the main body component is detachably connected to the bottle body (16); The main assembly includes a power supply, a peristaltic pump (3) and a control unit; The brace (12) comprises a brace body, side walls extending upward and downward along the outer edge of the brace body, respectively, and a groove (18) with closed side walls is formed on the upper and lower surfaces of the brace body for accommodating the upper and lower jaws; the groove comprises a labial side wall (20) located on the front side thereof, a lingual side wall (21) located on the rear side thereof, and an end side wall (22) connecting the ends of the labial side wall (20) and the lingual side wall (21); A first guide pipe (26) and a second guide pipe (27) are provided inside the braces body. The first guide pipe (26) and the second guide pipe (27) are arranged in an upper and lower manner inside the braces body. The first guide pipe (26) and the second guide pipe (27) extend from the central area of the labial side wall to the vicinity of the two end side walls (22), and a plurality of liquid outlets extend from the outer side wall of the pipe to the upper surface / lower surface of the braces body. The liquid outlets are arranged along the U of the braces body. The structure is evenly distributed; the liquid inlets of the first guide pipe (26) and the second guide pipe (27) are the first fluorine inlet and outlet port (23) and the second fluorine inlet and outlet port (24) that penetrate the lip side wall; one end of the first fluorine inlet and outlet port (23) is connected to the bottle body (16) through a hose and a peristaltic pump (3), and the other end is connected to the first guide pipe (26); one end of the second fluorine inlet and outlet port (24) is connected to the bottle body (16) through a hose and a peristaltic pump (3), and the other end is connected to the second guide pipe (27); The control unit includes a gear module, a liquid supply module, and a liquid suction module. The gear module includes a plurality of gears for outflowing fluorinated foam, each gear corresponding to a different working time of the peristaltic pump (3) and the outflow volume of the fluorinated foam; the liquid supply module is used to drive the peristaltic pump (3) to work according to the specified liquid output volume and time according to the gear of the selected gear module, so that the fluorinated foam in the bottle (16) flows through the peristaltic pump (3), the hose, the first fluorine inlet and outlet port (23), the second fluorine inlet and outlet port (24), the first diversion pipeline (26), and the second diversion pipeline (27) in sequence. and enters the groove of the brace (12) through the hole (25) located on the brace body; the liquid suction module is used to drive the peristaltic pump (3) to work at a preset speed and time according to the user's operation, so that the fluorinated foam and oral saliva in the groove (18) of the brace (12) flow through the hole (25) located on the brace body in sequence: the first diversion pipeline (26), the second diversion pipeline (27), the first fluorine inlet and outlet port (23), the second fluorine inlet and outlet port (24), the hose, the peristaltic pump (3) and then return to the bottle body (16).

2. The electric handheld oral fluoride coating device according to claim 1, characterized in that: The bottle body (16) is a disposable fluorinated foam tank. When the liquid supply module is in operation, the bottle body is used to contain the fluorinated foam to be introduced into the dental brace; when the liquid aspiration module is in operation, the bottle body (16) is used to contain the fluorinated foam and oral saliva discharged from the dental brace.

3. The electric handheld oral fluoride coating device according to claim 2, characterized in that: The control unit further comprises a cleaning module, which is used to drive the peristaltic pump to operate at a preset speed and time according to user operation, so that the cleaning liquid in the bottle flows through the peristaltic pump (3), the hose, the first fluorine inlet and outlet port (23), the second fluorine inlet and outlet port (24), the first diversion pipeline (26), the second diversion pipeline (27) in sequence, and enters the groove of the braces through the hole portion located on the braces body, thereby cleaning the pipelines and braces of the device; When the cleaning module is in operation, the bottle body (16) serves as a cleaning tank containing cleaning liquid.

4. The electric handheld oral fluoride coating device according to claim 2, characterized in that: The top of the lingual side wall (21) of the groove on the upper surface of the braces body is higher than the top of the labial side wall (20), and the top of the end side wall (22) is lower than the top of the labial side wall (20); the top of the lingual side wall (21) of the groove on the lower surface of the braces body is lower than the top of the labial side wall (20), and the top of the end side wall (22) is lower than the top of the labial side wall (20).

5. The electric handheld oral fluoride coating device according to claim 4, characterized in that: A lingual baffle (19) is also provided on the outer wall of the lingual side wall (21) for cooperating with the labial side wall (20) and the lingual side wall (21) to prevent swallowing of fluorinated foam.

6. The electric handheld oral fluoride coating device according to claim 2, characterized in that: The diameters of the first flow guiding pipeline (26) and the second flow guiding pipeline (27) are adapted to the corresponding hole portions and the first fluorine inlet and outlet port (23) and the second fluorine inlet and outlet port (24).

7. The electric handheld oral fluoride coating device according to claim 1, characterized in that: The dental brace (12) is made of natural silicone rubber or medical TPE.

8. The electric handheld oral fluoride coating device according to claim 1, characterized in that: The peristaltic pump has an outlet flow rate of 3-5 ml / s.

9. The electric handheld oral fluoride coating device according to claim 2, characterized in that: The connection mode between the bottle cap (15) and the bottle body (16) is selected from: threaded connection, embedded connection or inserted connection.

10. The electric handheld oral fluoride coating device according to claim 1, characterized in that: The control unit further comprises a button (10) and a gear light bar, wherein the button is electrically connected to the control circuit in the control unit; the gear light bar is also electrically connected to the control circuit in the control unit; the gear light bar is used to display the gear selected by the user; and the power supply is electrically connected to the control unit and the peristaltic pump (3) respectively, and is used to power the control unit and the peristaltic pump.

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