Suction and jet structure of an oral cleaner

Abstract

An oral cleaner according to an embodiment of the present application includes a mouthpiece for spraying cleaning water into an oral cavity, a wicking portion for wicking sewage mixed with the cleaning water and saliva in the oral cavity, and a handle formed with an inflow passage for the cleaning water to flow, a discharge passage for the sewage to flow, and a space formed for the cleaning water to flow in at least one of an upper side or a lower side of the discharge passage, to form a diffusion passage for supplying the cleaning water to the mouthpiece.

Description

Technical Field

[0001] This invention relates to an suction and spraying structure for an oral cleaner, and more specifically, to an suction and spraying structure for an oral cleaner used to spray cleaning water into the oral cavity and then suction out wastewater from the oral cavity. Background Technology

[0002] Figure 1 It is a diagram marked with numbers to distinguish teeth according to their location. Figure 2 It is a diagram showing the names of the different parts of a tooth.

[0003] refer to Figure 1 and Figure 2 Humans typically have 26 to 32 teeth. Normally, when bone is fractured, it can regenerate because it contains blood vessels and receives nourishment from the blood. However, teeth cannot regenerate because blood vessels cannot reach the enamel; therefore, proper care is crucial.

[0004] When tooth enamel comes into contact with acid, calcium is gradually lost. However, when the acidity in the mouth returns to alkalinity, calcium ions in saliva crystallize again in the enamel, thus gradually restoring it. As long as the alveolar tissue itself is not lost, the enamel surface will continue to maintain itself through this cycle of calcium loss and replenishment every day and every moment.

[0005] However, bacteria multiply after eating food residue, forming plaque. Streptococcus mutans is one of the bacteria that makes up plaque. It increases tooth acidity, leading to tooth erosion and causing inflammation of the gums. Furthermore, plaque prevents calcium ions mixed in saliva from reaching the teeth, ions that should be repairing damaged teeth. The calcium ions that don't reach the teeth are absorbed by plaque and crystallize. These crystallized plaques harden and adhere to the teeth – this is tartar. While tartar blocks the enamel, it allows acid to pass through while blocking calcium ions, thus hindering the chemical repair of the enamel surface. This makes the tartar even harder to remove, perpetuating the vicious cycle. In other words, once teeth are weakened, no amount of brushing will make them strong again. Moreover, because tartar is a breeding ground for harmful bacteria, especially gingivalis, it can cause gingivitis and necrosis.

[0006] A basic preventative measure is proper brushing to remove plaque and debris from between teeth. However, because everyone's teeth are aligned differently, there will inevitably be areas that are difficult to brush, no matter how you brush, especially when teeth are misaligned, which increases the difficulty of brushing.

[0007] Therefore, there is a need for an oral hygiene device that is not affected by tooth alignment and can maintain oral hygiene. Summary of the Invention

[0008] Technical issues The problem to be solved by this invention is as follows.

[0009] First, a handle and a toothbrush are provided that can simultaneously supply cleaning water and discharge wastewater.

[0010] Second, an suction structure is provided that can smoothly attract sewage from the oral cavity while preventing damage to the oral mucosa.

[0011] Third, a brace structure is provided that can smoothly perform discharge and suction even in the narrow space of the so-called oral cavity.

[0012] The subject matter of this invention is not limited to the subject matter described above, and other subject matters not mentioned will be clearly understood by those skilled in the art from the following description.

[0013] Problem-solving methods To achieve the aforementioned objective, an oral cleaner according to some embodiments of the present invention may include: a mouthguard that sprays cleaning water into the oral cavity; a core suction unit that draws in wastewater mixed with cleaning water and saliva within the oral cavity; and a handle that forms an inflow channel for the flow of cleaning water, an outlet channel for the flow of wastewater, and a space that forms a space for the flow of cleaning water in at least one direction above or below the outlet channel, thereby forming a diffusion channel for supplying cleaning water to the mouthguard.

[0014] According to some embodiments of the present invention, an oral cleaner may include: a mouthguard for spraying cleaning water into the oral cavity; a core suction unit for suctioning wastewater mixed with cleaning water and saliva into the oral cavity; and a handle having an inflow channel for the flow of cleaning water, a diffusion channel for connecting the inflow channel to the mouthguard, and a discharge channel for the flow of wastewater discharged from the core suction unit. The handle includes: an inflow partition for forming the inflow channel; a discharge partition spaced apart from the inflow partition to form the discharge channel; and a connecting partition for connecting the discharge partition to the inflow partition. The handle is inclined about the center line of the handle in the front-rear direction, such that the width of the discharge channel gradually decreases linearly from the rear to the front.

[0015] According to some embodiments of the present invention, an oral cleaner may include: a handle having an inflow channel for the flow of cleaning water and an outlet channel for the flow of wastewater aspirated in the oral cavity; a mouthguard for spraying cleaning water supplied through the handle into the oral cavity; and a core suction part having a lower suction hole for suctioning wastewater discharged from the mouthguard after rinsing the teeth.

[0016] According to some embodiments of the present invention, an oral cleaner may include: a handle having an inflow channel for the flow of cleaning water and an outlet channel for the flow of wastewater aspirated in the oral cavity; a mouthguard for spraying the cleaning water supplied through the handle into the oral cavity; and a core suction part for aspirating the wastewater discharged from the mouthguard after rinsing the teeth and connected to the mouthguard, the core suction part having an upper suction hole at a position opposite to the palate.

[0017] According to some embodiments of the present invention, an oral cleaner may include: a handle having an inflow channel for the flow of cleaning water and an outlet channel for the flow of wastewater aspirated in the oral cavity; a mouthguard that sprays cleaning water supplied through the handle into the oral cavity, having a labial surface corresponding portion formed opposite to the labial surface of the teeth, a buccal surface corresponding portion formed opposite to the buccal surface of the teeth, and a lingual surface corresponding portion formed opposite to the lingual surface of the teeth; and a core suction portion that aspirates wastewater discharged from the mouthguard and used to rinse the teeth on the midline groove of the user's tongue, with its outer peripheral edge connected to the lingual surface corresponding portion.

[0018] According to some embodiments of the present invention, an oral cleaner may include: a handle having an inflow channel for the flow of cleaning water; and a mouthpiece having a spray hole for spraying cleaning water into the oral cavity, the mouthpiece comprising: a labial-facing portion formed at a position opposite to the labial surface of the teeth; a buccal-facing portion connected to the labial-facing portion and formed at a position opposite to the buccal surface of the teeth; a lingual-facing portion formed at a position opposite to the lingual surface of the teeth; and a middle portion, both ends of which extend from the connection point of the labial-facing portion and the lingual-facing portion for connecting the labial-facing portion and the lingual-facing portion.

[0019] An oral cleaner according to some embodiments of the present invention includes: a handle having an inflow channel for the flow of cleaning water; and a mouthguard having a spray hole for spraying cleaning water into the oral cavity, the mouthguard comprising: a labial-facing portion formed at a position opposite to the labial surface of the teeth; a buccal-facing portion formed at a position opposite to the buccal surface of the teeth, connected to the labial-facing portion; a lingual-facing portion formed at a position opposite to the lingual surface of the teeth; and a middle portion formed at the occlusal position of the 7th, 8th, 9th, and 10th teeth, connecting the labial-facing portion and the lingual-facing portion, a lateral end portion connected to the boundary of the buccal-facing portion and the lingual-facing portion, an outer spray channel formed in the labial-facing portion and the buccal-facing portion, an inner spray channel formed in the lingual-facing portion, and a diffusion channel formed in the middle portion for connecting the outer spray channel and the inner spray channel.

[0020] According to some embodiments of the present invention, an oral cleaner may include: a mouthguard having: a labial-facing portion formed at a position opposite to the labial surface of the teeth; a lingual-facing portion formed at a position opposite to the lingual surface of the teeth; and an intermediate portion connecting the labial-facing portion and the lingual-facing portion; a core suction portion disposed on the user's tongue for suctioning wastewater from inside the oral cavity; and a straw disposed inside the intermediate portion, having a concentrated channel for the flow of wastewater suctioned by the core suction portion, and having a vertical channel that protrudes longitudinally and forms a flow gap with the mouthguard longitudinally.

[0021] Invention Effects The oral cleaner according to the present invention can achieve one or more of the following effects.

[0022] First, a handle and a toothbrush are provided that can simultaneously supply cleaning water and discharge wastewater.

[0023] Second, an suction structure is provided that can smoothly attract sewage from the oral cavity while preventing damage to the oral mucosa.

[0024] Third, a brace structure is provided that can smoothly perform discharge and suction even in the narrow space of the so-called oral cavity.

[0025] The effects of the present invention are not limited to those described above. Other effects not mentioned will be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0026] Figure 1It is a diagram marked with numbers to distinguish teeth according to their location.

[0027] Figure 2 It is a diagram showing the names of the different parts of a tooth.

[0028] Figure 3 This is a perspective view of an oral cleaner according to an embodiment of the present invention.

[0029] Figure 4 This is an exploded perspective view of an oral cleaner according to an embodiment of the present invention.

[0030] Figure 5 This is a perspective view showing the lower part of an oral cleaner according to an embodiment of the present invention.

[0031] Figure 6 This is a top view of the lower part according to an embodiment of the present invention.

[0032] Figure 7a This is a top view of the upper part according to an embodiment of the present invention.

[0033] Figure 7b It is relative to Figure 1 Oral cavity structure description Figure 7a The upper part of the image.

[0034] Figure 8 yes Figure 3 An enlarged view of the dental aligner portion of the oral irrigator.

[0035] Figure 9 yes Figure 8 Partial bottom view.

[0036] Figure 10 This is a perspective view of a straw according to an embodiment of the present invention.

[0037] Figure 11 This is a top view of a straw according to an embodiment of the present invention.

[0038] Figure 12 It means in Figure 4 The lower part is combined with a three-dimensional image in the shape of a straw.

[0039] Figure 13 It means in Figure 6 A top view showing the shape of a straw incorporated into the lower part.

[0040] Figure 14 This is a three-dimensional view showing the shape of a straw combined with the upper part of Figure 7.

[0041] Figure 15 An example diagram showing an oral cleaner according to an embodiment of the present invention being bitten onto teeth using a dental model.

[0042] Figure 16a It means according to Figure 15 A diagram showing the flow of cleaning water and wastewater during use.

[0043] Figure 16b It means according to Figure 15 A diagram of the hand part that comes into close contact with the mouth protector during use.

[0044] Figure 17 This is a perspective view of an oral cleaner according to another embodiment of the present invention.

[0045] Figure 18 This is an exploded perspective view of an oral cleaner according to another embodiment of the present invention.

[0046] Figure 19 This is a perspective view of the lower part of an oral cleaner according to another embodiment of the present invention.

[0047] Figure 20 This is a perspective view of the upper part of an oral cleaner according to another embodiment of the present invention.

[0048] Figure 21 This is a perspective view of an oral cleaner with a straw attached to the upper part according to another embodiment of the present invention.

[0049] Figure 22 yes Figure 17 Section 22-22.

[0050] Figure 23 express Figure 22 The direction of the cleaning water flow.

[0051] Figure 24 This is a top view of the lower part of an oral cleaner according to another embodiment of the present invention.

[0052] Figure 25 This is a top view of the upper part of an oral cleaner according to another embodiment of the present invention.

[0053] Figure 26 yes Figure 17 A magnified view of the braces.

[0054] Figure 27 yes Figure 26 A bottom view of the braces.

[0055] Figure 28 This is a perspective view of a straw according to another embodiment of the present invention.

[0056] Figure 29 yes Figure 28 A top view of a straw.

[0057] Figure 30 yes Figure 28A bottom view of a straw.

[0058] Figure 31 This is a diagram showing the flow of wastewater caused by the suction pipe and water diffuser.

[0059] Figure 32 It means Figure 24 A diagram showing part of the sewage flow.

[0060] Figure 33 It means Figure 25 A diagram showing part of the sewage flow. Detailed Implementation

[0061] The advantages, features, and methods of implementing the present invention will become clearer from the following detailed description of embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and can be embodied in many different forms. These embodiments are provided to make the disclosure of the invention more complete and to enable those skilled in the art to fully understand the scope of the invention. The present invention is defined only by the scope of the claims. Throughout this specification, the same reference numerals refer to the same constituent elements.

[0062] The present invention will now be described with reference to the accompanying drawings.

[0063] Figure 3 This is a perspective view of an oral cleaner 100 according to an embodiment of the present invention. Figure 4 This is an exploded perspective view of an oral cleaner 100 according to an embodiment of the present invention.

[0064] refer to Figure 3 and Figure 4 According to an embodiment of the present invention, an oral cleaner 100 includes: a main body (not shown) that supplies cleaning water 51 and stores the attracted wastewater 53; a handle 110 connected to the main body; a dental cup 130 connected to the handle 110 for spraying the cleaning water 51; and a core suction part 150 connected to the dental cup 130 for attracting the wastewater 53.

[0065] The main body may include multiple water pumps. These pumps generate power to discharge cleaning water 51 to the handle 110 or to draw wastewater 53 from the core suction unit 150. The pumps generate positive pressure to discharge the cleaning water 51 and negative pressure to draw in the wastewater 53. Multiple pumps are provided, one generating positive pressure and another generating negative pressure.

[0066] The handle 110, the dental brace 130, and the core suction part 150 can be formed as one piece.

[0067] The handle 110, dental brace 130, and suction core 150 can be divided into an upper part 100b and a lower part 100a. The upper part 100b can form the upper side of the handle 110, dental brace 130, and suction core 150, and the lower part 100a can form the lower side of the handle 110, dental brace 130, and suction core 150. The straw 170 can be disposed between the upper part 100b and the lower part 100a.

[0068] Figure 5 This is a perspective view showing the lower part 100a of an oral cleaner 100 according to an embodiment of the present invention. Figure 6 Figure 7 is a top view of the lower part 100a according to an embodiment of the present invention. Figure 8 is a top view of the upper part 100b according to an embodiment of the present invention.

[0069] refer to Figure 5 As shown in Figure 7, an oral cleaner 100 according to an embodiment of the present invention includes: a mouthguard 130 for spraying cleaning water 51 into the oral cavity; a core suction part 150 for suctioning wastewater 53 mixed with cleaning water 51 and saliva in the oral cavity; and a handle 110 having an inflow channel 101 for the flow of cleaning water 51, an outlet channel 107 for the flow of wastewater 53, and a diffusion channel 103 for connecting the inflow channel 101 and the mouthguard 130, wherein the lateral width 103d of the diffusion channel 103 is greater than the lateral width 101d of the inflow channel 101 or the lateral width 107d of the outlet channel 107.

[0070] The braces 130 spray cleaning water 51 into the oral cavity. The braces 130 spray cleaning water 51 onto the gums and teeth. Wastewater 53 is a mixture of cleaning water 51, saliva, plaque, and waste. The core suction unit 150 draws in the wastewater 53. The core suction unit 150 draws in the wastewater 53 and discharges it into the handle 110. Cleaning water 51 supplied from the main body flows into the inflow channel 101 formed in the handle 110. The inflow channel 101 is formed on one side of the handle 110, and the discharge channel 107 is formed on the other side. Wastewater 53 drawn in from the core suction unit 150 flows into the discharge channel 107.

[0071] At the connection point between the handle 110 and the brace 130 (downstream of the inflow channel 101b and upstream of the discharge channel 107a), a diffusion channel 103 with an expanded width of the inflow channel 101 is formed.

[0072] The cleaning water 51 flowing through one side of the handle 110 is evenly distributed to the left and right sides of the dental brace 130 through the diffusion channel 103. The width of the diffusion channel 103 is greater than the width of the downstream 101b of the inflow channel 101. The lateral width 103d of the diffusion channel 103 is greater than the sum of the lateral width 101d of the inflow channel 101 and the lateral width 107d of the discharge channel 107. The width of the diffusion channel 103 is greater than the width of the upstream 107a of the discharge channel 107. The width of the diffusion channel 103 can be equal to or greater than the sum of the width of the upstream 107a of the discharge channel 107 and the width of the downstream 101b of the inflow channel 101.

[0073] The discharge channel 107 is connected to the straw 170, which will be described later. The diffusion channel 103 is formed not only downstream 101b of the inflow channel 101, but also at the upper and / or lower end of the straw 170. The diffusion channel 103 is formed across the straw 170. For example, the inflow channel 101 is formed on the left side of the handle 110, and the diffusion channel 103 begins on the left side of the handle 110, extends through the straw 170 to the right side of the handle 110.

[0074] The discharge channel 107 has a shape in which the cross-sectional area of ​​the channel gradually decreases from the rear end (upstream 107a of the discharge channel 107) to the front end (downstream 107b of the discharge channel 107). The upstream 107a of the discharge channel 107 is connected to the suction pipe 170. The width of the upstream 107a of the discharge channel 107 may gradually decrease downstream.

[0075] A flow guide plate 179 is disposed inside the handle 110. This flow guide plate diverts the cleaning water 51 flowing from the inflow channel 101 at the point where the handle 110 connects to the dental brace 130, causing the cleaning water 51 to flow in different directions. The flow guide plate 179 is disposed behind the downstream end 101b of the inflow channel 101. The flow guide plate 179 is disposed downstream 101b of the inflow channel 101 to divert the cleaning water 51. The flow guide plate 179 is disposed in the diffusion channel 103. The flow guide plate 179 is disposed at a position opposite the incisors, dividing the flow direction of the cleaning water 51 into left and right directions for the incisors. The flow guide plate 179 is disposed on the longitudinal (front-back direction) centerline CC' of the handle 110. The flow guide plate 179 is disposed in front of the incisors. The cleaning water 51 is divided and diffused in front of the incisors, ultimately dispersing throughout the dental brace 130. The brace 130 includes: a left labial surface corresponding portion 131a and a right labial surface corresponding portion 131b formed at positions opposite to the labial surface of the teeth; a left buccal surface corresponding portion 133a and a right buccal surface corresponding portion 133b formed at positions opposite to the buccal surface of the teeth; and a left lingual surface corresponding portion 135a and a right lingual surface corresponding portion 135b formed at positions opposite to the lingual surface of the teeth. A flow guide plate 179 is configured to allow cleaning water 51 to flow to the left labial surface corresponding portion 131a and the right labial surface corresponding portion 131b.

[0076] The flow guide plate 179 is used to separate the cleaning water 51 supplied from one side of the handle 110. The cleaning water 51 supplied from the inflow channel 101 flows through the flow guide plate 179 toward the lip-facing corresponding portion 131. The cleaning water 51 flowing through the lip-facing corresponding portion 131 flows toward the tongue-facing corresponding portion 135. Gap is formed on the left and right inner walls of the flow guide plate 179 and the handle 110. A portion of the cleaning water 51 flows through this gap to the left lip-facing corresponding portion 131a. A portion of the cleaning water 51 flows through the slope of the flow guide plate 179 to the right lip-facing corresponding portion 131b.

[0077] The flow guide plate 179 is inclinedly disposed on the front-rear centerline CC' of the dental aligner 130 and the handle 110. The cleaning water 51 discharged from the inflow channel 101 diffuses along the flow guide plate 179 disposed in the diffusion channel 103. The cleaning water 51 diffuses along the inclined surface of the flow guide plate 179 towards the dental aligner 130.

[0078] According to an embodiment of the present invention, an oral cleaner 100 includes a straw 170, which forms a central channel 105 for the flow of wastewater 53 and connects the core suction part 150 to the discharge channel 107. The straw 170 is disposed inside the diffusion channel 103.

[0079] A diffusion channel 103 and a concentrating channel 105 intersect to form a concentrating channel 105. A suction tube 170 connects the core suction unit 150 and the discharge channel 107. The suction tube 170 forms the concentrating channel 105. Wastewater 53 drawn in by the core suction unit 150 flows in the concentrating channel 105. The concentrating channel 105 connects the suction tube 170 and the discharge channel 107. The suction tube 170 is disposed in the diffusion channel 103, and the cleaning water 51 diffuses throughout the dental brace 130 through the upper and / or lower ends of the suction tube 170. The upper and / or lower ends of the dental brace 130 and the suction tube 170 are separated, which will be described in detail later.

[0080] An oral cleaner according to an embodiment of the present invention includes: a mouthguard 130 for spraying cleaning water 51 into the oral cavity; a core suction unit 150 for suctioning wastewater 53 mixed with cleaning water 51 and saliva in the oral cavity; and a handle 110 having an inflow channel for the cleaning water 51 to flow through, a diffusion channel 110 connecting the inflow channel 101 and the mouthguard 130, and a discharge channel 107 for the wastewater 53 discharged from the core suction unit 150 to flow through. The handle 110 includes: an inflow partition 111 forming the inflow channel 101; a discharge partition 117 spaced apart from the inflow partition 111 and forming the discharge channel 101; and a connecting partition 113 connected to the rear end of the discharge partition 117 and connected to the rear end of the inflow partition 111.

[0081] The inflow partition 111 extends from upstream 101a of the inflow channel 101 to downstream 101b of the inflow channel 101. A connecting partition 113 is connected to the inflow partition 111. The connecting partition 113 extends forward of the diffusion channel 103. The connecting partition 113 is positioned upstream 107a of the discharge channel 107.

[0082] Connecting partition 113 extends forward from the upstream of exhaust passage 107a and connects to exhaust partition 117. Connecting partition 113 is inclined with respect to the forward / backward centerline CC' of handle 110. Connecting partition 113 is used to widen the upstream of exhaust passage 107a.

[0083] The connecting partition 113 is used to widen the upstream 107a of the discharge channel 107 by a width greater than the downstream 101b of the inflow channel 101. The connecting partition 113 is configured at an angle.

[0084] The handle 110 includes a connecting partition 113 arranged in an oblique direction, such that the cross-sectional area of ​​the discharge channel 107 gradually decreases from the rear end (upstream) to the front end (downstream).

[0085] The handle 110 includes a connecting partition 113 that connects the discharge partition 117 and the inflow partition 111. This connecting partition is inclined with respect to the front-rear centerline CC' of the handle 110, causing the width of the discharge channel 107 to gradually decrease linearly from the rear (upstream) to the front (downstream). The connecting partition 113 is used to mitigate the impact of the rapidly flowing wastewater 53 from the suction pipe 170. The connecting partition 113 also reduces vibrations generated in the handle 110.

[0086] An oral cleaner according to an embodiment of the present invention includes a straw 170, the straw comprising: a front channel 171 connected to a discharge channel 107; a rear channel 173 connected to a core suction unit 150; and a curved channel 175, obliquely arranged with respect to the front-rear centerline CC' of the handle 110, for connecting the rear channel 173 and the front channel 171. The oblique direction of the connecting partition 113 may be the same as the oblique direction of the curved channel 175. Wastewater 53 impacting the oblique surface of the curved channel 175 will concentrate on one side laterally.

[0087] When starting or stopping the suction pump, if the flow of wastewater 53 changes suddenly, the pressure and flow rate may change abruptly, resulting in water hammer. Since the pump simultaneously draws in air and wastewater 53 present in the suction port, the air and wastewater 53 flow in a mixed state within the discharge channel 107 and the suction pipe 170. This environment of air and wastewater 53 flowing together causes water hammer inside the handle 110. The connecting partition 113 reduces the vacuum generation portion on the discharge channel 107 and gradually decreases the flow path width of the wastewater 53 to mitigate water hammer.

[0088] Figure 8 It is by Figure 3 Enlarged view of the dental aligner 130 part of the oral cleaner 100. Figure 9 It is indicated from the bottom. Figure 8 Partial diagram.

[0089] refer to Figure 8 and Figure 9 An oral cleaner 100 according to an embodiment of the present invention includes: a handle 110 having an inflow channel 101 for the flow of cleaning water 51 and an outlet channel 107 for the flow of wastewater 53 suctioned in the oral cavity; a mouthguard 130 for spraying the cleaning water 51 supplied through the handle 110 into the oral cavity; and a core suction part 53 for suctioning the wastewater 53 discharged from the mouthguard 130 after rinsing the teeth, the core suction part 150 having its edge surrounded by the mouthguard 130. The core suction part 150 suctions the wastewater 53. A straw 170 is connected to the core suction part 150 for suctioning the wastewater 53. The straw 170 is connected to the handle 110. The outlet channel 107 is connected to the straw 170.

[0090] The core suction portion 150 is fixed to the dental brace 130. The core suction portion 150 is positioned on the center line CC' of the dental brace 130. The core suction portion 150 is located at the center of the dental brace 130. The surface where the core suction portion 150 and the dental brace 130 meet is curved into a "U" shape. The inner side of the dental brace 130 is also formed into a "U" shape. The core suction portion 150 is generally circular or elliptical and is attached to the inner side of the dental brace 130.

[0091] The braces 130 include: a labial-facing portion 131 formed opposite to the labial surface of the teeth; a buccal-facing portion 133 formed opposite to the buccal surface of the teeth; and a lingual-facing portion 135 formed opposite to the lingual surface of the teeth. A core suction portion 150 is surrounded by the lingual-facing portion 135 and placed on the user's tongue. The lingual-facing portion 135 protects the delicate epithelial cells in the oral cavity from the suction force of the core suction portion 150.

[0092] The core suction part 150 is disposed on the user's tongue. The core suction part 150 is positioned in the center of the tongue. The interior of the oral cavity is composed of very thin epithelial cells. The tongue is the most powerful muscle in the oral cavity. The core suction part 150 absorbs wastewater from the tongue. Even if the tongue sticks to the core suction part 150, the possibility of injury is very low. Because the tongue has multiple lingual papillae, multiple air and / or wastewater channels are formed between the core suction part 150 and the lingual papillae.

[0093] The outer side of the brace 130 forms a labial corresponding portion 131 and a buccal corresponding portion 133, while the inner side of the brace 130 forms a lingual corresponding portion 135. A middle portion 137, described later, connects the lingual corresponding portion 135 and the labial corresponding portion 131. A lower suction hole 159 is formed in the core suction portion 150 at a position opposite to the tongue. The lower suction hole 159 faces the tongue and is located on the lower side of the core suction portion 150. A suction guide portion 153 is formed in the core suction portion 150, protruding from the edge of the lower suction hole 159 to guide wastewater 53 to the lower suction hole 159.

[0094] The suction guide 153 is used to prevent the tongue from blocking the lower suction hole 159. The suction guide 153 separates the lower suction hole 159 from the tongue. The suction guide 153 acts as a straw to suction out the wastewater 53 present on the tongue. The suction guide 153 is immersed in the cleaning water 51 or creates negative pressure at a distance close to the cleaning water 51.

[0095] The lower suction hole 159 includes a first lower suction hole 159a and a second lower suction hole 159b formed behind the first lower suction hole 159a. The protrusion height of the first suction guide portion 153a formed in the first lower suction hole 159a is higher than that of the second suction guide portion 153b formed in the second lower suction hole 159b. The first suction guide portion 153a formed in the first lower suction hole 159a is formed to be higher than the tongue-side corresponding portion 135. The first suction guide portion 153a prevents the user's tongue from directly contacting the tongue-side corresponding portion 135. The first suction guide portion 153a separates the user's tongue from the tongue-side corresponding portion 135.

[0096] Wastewater 53 can flow between the user's tongue and the corresponding part 135 on the tongue side. The suction guide 153 has a trough 151 for the wastewater 53 to flow forward. The trough 151 is a gap formed to attract wastewater 53 even when the suction guide 153 is in close contact with the tongue. The trough 151 can be formed in the front, i.e., in the direction of the lips.

[0097] The core suction portion 150 includes a downwardly projecting "U"-shaped suction guide portion 153 at the edge of the lower suction hole 159. The suction guide portion 153 is formed with the protruding side facing forward and the concave side facing backward, i.e., the uvula. The height of the suction guide portion 153 gradually decreases from front to back, i.e., from the mouth to the uvula. Taking into account the shape of the tongue, since the height gradually increases from the tip of the tongue to the root of the tongue, the height of the suction guide portion 153 is as close as possible to the tongue.

[0098] The core suction section 150 includes a suction guide section 153 that has a shape that protrudes forward and is recessed rearward, and is formed at the edge of the lower suction hole 159. A rear suction hole 157 is formed in the core suction section 150 at a position facing the uvula. The rear suction hole 157 is formed at the rear of the core suction section 150. The rear suction hole 157 suctions wastewater 53 near the uvula. An upper suction hole 155 is formed in the core suction section 150 at a position opposite the palate. The upper suction hole 155 is formed on the upper side of the core suction section 150. The upper suction hole 155 suctions wastewater 53 that falls after being ejected toward the palate.

[0099] An oral cleaner 100 according to an embodiment of the present invention includes: a handle 110 having an inflow channel 101 for the flow of cleaning water 51 and an outlet channel 107 for the flow of wastewater 53 drawn into the oral cavity; a dental cup 130 for spraying the cleaning water 51 supplied through the handle 110 into the oral cavity; and a core suction unit 150 for suctioning the wastewater 53 discharged from the dental cup 130 after rinsing the teeth, and connected to the dental cup 130. The core suction unit 150 carries the wastewater 53, and the dental cup 130 carries the cleaning water 51.

[0100] The braces 130 and the core suction part 150 are separated to prevent the cleaning water 51 and the wastewater 53 from mixing. The center of the core suction part 150 is positioned on the median sulcus of the user's tongue. The core suction part 150 is positioned on the dorsum of the user's tongue. The lower end of the core suction part 150 is formed above the lower end of the braces 130, and the upper end of the core suction part 150 is formed below the upper end of the braces 130.

[0101] The suction core 150 is positioned on the tongue and is lower than the brace 130. Therefore, the likelihood of the user's tongue or palate contacting the suction core 150 is reduced. The periphery of the suction core 150 is connected to the brace 130. The edge of the suction core 150 is connected to the tongue-facing corresponding portion 135, which is higher than the suction core 150. An upper suction hole 155 is formed on the upper side of the suction core 150. The brace 130 surrounds the edge of the suction core 150. The brace 130 prevents the suction core 150 from contacting the user's cheek. This structure protects the user's delicate oral mucosa.

[0102] The core suction part 150 has a lower suction hole 159 formed opposite to the tongue, an upper suction hole 155 formed opposite to the palate, and a posterior suction hole 157 formed opposite to the uvula. The lower suction hole 157, upper suction hole 155, and posterior suction hole 157 are aligned in a straight line in the front-back direction. The lower suction hole 159, upper suction hole 155, and posterior suction hole 157 are centrally located in the user's oral cavity, and these holes are separated from the oral mucosa by a predetermined distance due to the brace 130. Therefore, it is possible to prevent the oral mucosa from being sucked into these holes and blocking them. This structure is intended to maintain the suction function of the wastewater 53.

[0103] In the braces 130, a front suction hole 139 is formed on the part opposite to the chewing surface of the incisors. In the core suction part 150, a lower suction hole 159 is formed on the part opposite to the tongue, an upper suction hole 155 is formed on the part opposite to the palate, and a posterior suction hole 157 is formed on the part opposite to the uvula. The front suction hole 139, the lower suction hole 159, the upper suction hole 155, and the posterior suction hole 157 are formed on a straight line on the center line CC' in the anterior-posterior direction.

[0104] An anterior suction hole 139 is formed near the lips. The anterior suction hole 139 suctions out wastewater 53 from the vicinity of the lips. The anterior suction hole 139 is formed in the middle portion 137, described later. The middle portion 137 is formed at a position that contacts the chewing surface of the incisors. The anterior suction hole 139 may be formed on the upper and / or lower side of the brace 130.

[0105] An oral cleaner 100 according to an embodiment of the present invention includes: a handle 110 having an inflow channel 101 for the flow of cleaning water 51 and an outlet channel 107 for the flow of wastewater 53 drawn into the oral cavity; a mouthguard 130 for spraying the cleaning water 51 supplied through the handle 110 into the oral cavity, and having: a labial surface corresponding portion 131 formed at a position opposite to the labial surface of the teeth, a buccal surface corresponding portion 133 formed at a position opposite to the buccal surface of the teeth, and a left lingual surface corresponding portion 135a and a right lingual surface corresponding portion 135b formed at a position opposite to the lingual surface of the teeth; and a core suction portion 150 for suctioning the wastewater 53 discharged from the mouthguard 130 after rinsing the teeth, the left side being combined with the left lingual surface corresponding portion 135a, and the right side being combined with the right lingual surface corresponding portion 135b.

[0106] The core suction portion 150 is surrounded by the lingual counterpart 135. The core suction portion 150 is separated from the user's oral mucosa. The rear end of the core suction portion 150 is positioned further forward than the rear end of the buccal counterpart 133. The rear end of the core suction portion 150 is positioned further forward than the rear end of the lingual counterpart 135. Because the rear end of the core suction portion 150 protrudes lower than the braces 130, it does not obstruct the uvula.

[0107] Figure 10 This is a perspective view of a straw 170 according to an embodiment of the present invention. Figure 11 This is a top view of a straw 170 according to an embodiment of the present invention. Figure 12 It is shown in Figure 4 A three-dimensional view of the shape of the lower part 100a combined with the straw 170. Figure 13 It is shown in Figure 6 A top view of the shape of the lower part 100a combined with the straw 170. Figure 14 This is a perspective view showing the shape of the straw 170 combined with the upper part 100b in Figure 7.

[0108] refer to Figures 10 to 14 According to an embodiment of the present invention, an oral cleaner 100 includes: a handle 110 having an inflow channel 101 for the flow of cleaning water 51 and an outlet channel 107 for the flow of wastewater 53 drawn into the oral cavity; a mouthguard 130 connected to the inflow channel 101 for spraying cleaning water 51 into the oral cavity; a core suction part 150 for suctioning wastewater 53 discharged from the mouthguard 130 for rinsing teeth; and a straw 170 for the flow of wastewater 53, passing through the mouthguard 130 and connecting the core suction part 150 and the handle 110.

[0109] The straw 170 passes through the mouthguard 130. Wastewater 53 flows from the core suction section 150 to the straw 170. The straw 170 is connected to the discharge channel 107. The straw 170 passes through the mouthguard 130 and is connected to the handle 110. Cleaning water 51 flows inside the mouthguard 130. The straw 170 separates the cleaning water 51 from the wastewater 53.

[0110] The dental brace 130 includes: a left labial-facing corresponding portion 131a and a right labial-facing corresponding portion 131b formed opposite to the labial surface of the teeth; a left buccal-facing corresponding portion 133a and a right buccal-facing corresponding portion 133b formed opposite to the buccal surface of the teeth; and a lingual-facing corresponding portion 135 formed opposite to the lingual surface of the teeth. A straw 170 passes through the labial-facing corresponding portion 131 and the lingual-facing corresponding portion 135 and is connected to a core suction portion 150. The core suction portion 150 is surrounded by the lingual-facing corresponding portion 135. A handle 110 is connected to the labial-facing corresponding portion 131. The straw 170 passes through the dental brace 130 and is connected to the handle 110. The straw 170 includes a vertical channel 177 that protrudes longitudinally and forms flow gaps 190 and 290 longitudinally with the dental brace 130. The flow gaps 190 and 290 are shown in... Figure 5 and Figure 19 A vertical channel 177 is formed at the upper and / or lower end of the straw 170.

[0111] The dental brace 130 has a front suction hole 139 positioned opposite the chewing surface of the user's incisors to draw out wastewater 53. A vertical channel 177 communicates with the front suction hole 139 to form a vertical flow path. Wastewater 53 collected in the direction of the incisors moves through the front suction hole 139 to the vertical channel 177. Wastewater 53 flowing into the straw 170 through the vertical channel 177 flows toward the handle 110. The dental brace 130 includes a vertical protrusion 137a that engages with the vertical channel 177 to form flow gaps 190, 290.

[0112] The flow gap 190 forms a diffusion channel 103 for the cleaning water 51 to flow across the straw 170. The dental brace 130 includes a vertical protrusion 137a that protrudes longitudinally internally and forms the flow gaps 190 and 290 with the straw 170 longitudinally. The vertical protrusion 137a engages with the vertical channel 177. The vertical channel 177 and the vertical protrusion 137a form a space between the dental brace 130 and the straw 170. This space is the flow gap 190 and 290. The cleaning water 51 flows through the flow gaps 190 and 290 to the upper and / or lower side of the straw 170. The cleaning water 51 also flows through the flow gaps 190 and 290 in the opposite direction to the straw 170.

[0113] The straw 170 includes: a front channel 171 connected to the discharge channel 107 of the handle 110; and a rear channel 173 passing through the rear of the brace 130 and connected to the core suction part 150.

[0114] The straw 170 is detachably formed and disposed within the diffusion channel 103. The straw 170 includes a curved channel 175, which is inclined relative to the centerline 173C of the rear channel 173 and the centerline 171C of the front channel 171, for connecting the rear channel 173 and the front channel 171. The curved channel 175 passes through the front of the brace 130 and connects to the front channel 171.

[0115] The rear channel 173 and the front channel 171 are formed with their center lines parallel. The inflow channel 101 is formed on one side of the handle 110, the discharge channel 107 is formed on the other side of the handle 110, the wick suction part 150 is formed on the center line CC' of the handle 110, and the straw 170 includes the rear channel 173 connected to the wick suction part 150 and the front channel 171 connected to the discharge channel 107.

[0116] An oral cleaner 100 according to an embodiment of the present invention includes a suction tube 170 for connecting a core suction portion 150 and a discharge channel 107.

[0117] The straw 170 includes a curved channel 175, which is configured at an oblique angle relative to the centerline CC' of the handle 110 and connects the rear channel 173 and the front channel 171. The curved channel 175 bends the path of the wastewater 53.

[0118] Since the core suction part 150 is located on the centerline CC' of the handle 110, and the discharge channel 107 is located on one side of the handle 110, a means for bend the path of the wastewater 53 is required. The front channel 171 is formed parallel to the flow direction of the discharge channel 107. Wastewater 53 flows inside the suction tube 170, and cleaning water 51 flows outside the suction tube 170. A flow path guide plate 179 is provided on the outer peripheral surface of the suction tube 170 to direct the cleaning water 51 in different directions. A diffusion channel 103 is formed at the connection point between the handle 110 and the toothbrush 130.

[0119] A front channel 171 and a curved channel 175 can be provided in the diffusion channel 103. The flow path guide plate 179 can protrude in the vertical direction to form flow gaps 190, 290. The flow path guide plate 179 separates the straw 170 from the dental brace 130.

[0120] Flow gaps 190 and 290 are the spaces between the dental brace 130 and the straw 170. A flow guide plate 179 is disposed in the diffusion channel 103. Although the flow guide plate 179 and the straw 170 are shown as an integral part, the flow guide plate 179 can also be formed on the handle 110. The straw 170 includes a flow guide plate 179 that divides the inflow channel 101 to direct the cleaning water 51 in different directions.

[0121] The cleaning water 51 flowing in from one side of the handle 110 flows along the flow path guide plate 179 to the other side of the handle 110. When the inflow channel 101 is formed on the left side of the handle 110, the cleaning water 51 discharged from the left side of the handle 110 flows to the left cheek-facing corresponding portion 133a and the left tongue-facing corresponding portion 135a. The flow path guide plate 179 is inclinedly disposed behind the inflow channel 101, such that a portion of the cleaning water 51 flows towards the right lip-facing corresponding portion 131b. The flow path guide plate 179 is inclinedly disposed behind the inflow channel 101, such that a portion of the cleaning water 51 flows towards the right cheek-facing corresponding portion 133b.

[0122] An oral cleaner 100 according to an embodiment of the present invention includes: a handle 110 having an inflow channel 101 for the flow of cleaning water 51 and an outlet channel 107 for the flow of wastewater 53 drawn into the oral cavity; a mouthguard 130 connected to the inflow channel 101 for spraying cleaning water 51 into the oral cavity; a core suction part 150 for suctioning the wastewater 53 discharged from the mouthguard 130 for rinsing the teeth; and a straw 170 having a central channel 105 for the flow of wastewater 53 formed inside, and flow gaps 190 and 290 for the flow of cleaning water 51 formed between the straw and the mouthguard 130 outside, and connecting the core suction part 150 and the handle 110.

[0123] The straw 170 includes a vertical channel 177 that protrudes longitudinally and forms flow gaps 190, 290 with the dental brace 130 in the longitudinal direction. The dental brace 130 includes a vertical protrusion 137a that interacts with the vertical channel 177 to form the flow gaps 190, 290. The flow gaps 190, 290 form a diffusion channel 103 for the flow of cleaning water 51 across the straw 170. The dental brace 130 includes a vertical protrusion 137a that protrudes longitudinally internally and forms the flow gaps 190, 290 with the straw 170 in the longitudinal direction.

[0124] A straw 170 is disposed in a diffusion channel 103. Wastewater 53 flows inside the straw 170. Cleaning water 51 flows outside the straw 170. Flow gaps 190 and 290 are formed between the upper and / or lower ends of the straw 170 and the dental brace 130. The cleaning water 51 flows through the flow gaps 190 and 290 in the opposite direction to the straw 170.

[0125] Vertical protrusion 137a and vertical channel 177 form flow gaps 190 and 290. Vertical protrusion 137a and vertical channel 177 can be combined to form flow gaps 190 and 290. Vertical protrusion 137a can be formed on the edge of front suction hole 139 to connect front suction hole 139 and vertical channel 177.

[0126] Refer again Figure 8 and Figure 9 According to an embodiment of the present invention, an oral cleaner 100 includes: a handle 110 having an inflow channel 101 for the flow of cleaning water 51; and a mouthguard 130 having a spray hole 130a for spraying cleaning water 51 into the oral cavity. The mouthguard 130 includes: a labial surface corresponding portion 131 formed at a position opposite to the labial surface of the teeth; a buccal surface corresponding portion 133 connected to the labial surface corresponding portion 131 and formed at a position opposite to the buccal surface of the teeth; and a lingual surface corresponding portion 135 formed at a position opposite to the lingual surface of the teeth; and an intermediate portion 137 having both ends starting from the connection point of the labial surface corresponding portion 131 and the lingual surface corresponding portion 135 and connecting the labial surface corresponding portion 131 and the lingual surface corresponding portion 135.

[0127] The middle portion 137 connects the rear of the lingual-facing corresponding portion 131 and the front of the lingual-facing corresponding portion 135. The front of the middle portion 137 connects to the labial-facing corresponding portion 131. The rear of the middle portion 137 connects to the lingual-facing corresponding portion 135. The left end of the middle portion 137 connects to the boundary of the left labial-facing corresponding portion 131a and the left buccal-facing corresponding portion 133a. The right end of the middle portion 137 connects to the boundary of the right labial-facing corresponding portion 131b and the right buccal-facing corresponding portion 133b. The lingual-facing corresponding portion 135 is formed in front of the middle portion 137, and the labial-facing corresponding portion 131 is formed behind the middle portion 137. The middle portion 137 draws in wastewater 53 distributed around the incisors.

[0128] The braces 130 include a buccal-facing portion 133 connected to a labial-facing portion 131 and formed at a position opposite to the buccal surface of the teeth. A first shrinkage allowance hole 132a is formed in the space between the lingual-facing portion 135 and the buccal-facing portion 133, so that all areas of the chewing surfaces of the 1st, 2nd, 3rd, and 4th teeth are empty, and a second shrinkage allowance hole 132b is formed, so that all areas of the chewing surfaces of the 13th, 14th, 15th, and 16th teeth are empty.

[0129] The first shrinkage allowable hole 132a and the second shrinkage allowable hole 132b are both formed by a single hole. The first shrinkage allowable hole 132a and the second shrinkage allowable hole 132b form boundaries with the middle portion 137, the tongue-side corresponding portion 135 and the cheek-side corresponding portion 133, and the rear end of the cheek-side corresponding portion 133 forms a free end.

[0130] An outer jet channel 134a is formed in the labial corresponding portion 131 and the buccal corresponding portion 133, an inner jet channel 134b is formed in the lingual corresponding portion 135, and a diffusion channel 103 is formed in the middle portion 137 to connect the outer jet channel 134a and the inner jet channel 134b. The diffusion channel 103 is formed at the connection point between the handle 110 and the brace 130 and in the middle portion 137. The cleaning water 51 flowing into the diffusion channel 103 is dispersed to all parts of the brace 130. The diffusion channel 103 connects the handle 110, the labial corresponding portion 131, the lingual corresponding portion 135, and the buccal corresponding portion 133. One end of the buccal corresponding portion 133 is fixed to the labial corresponding portion 131, and the other end is formed as a free end. The side end portion 137b of the middle portion 137 has a shape that is concave towards the center, so that the buccal corresponding portion 133 can move elastically towards the labial corresponding portion 131. The side end 137b of the middle portion 137 is bent into a "C" shape, allowing the cheek-facing portion 133 to move elastically toward the lip-facing portion 131. One end of the cheek-facing portion 133 is fixed by the lip-facing portion 131. The other end of the cheek-facing portion 133 is a free end. The left and right ends of the middle portion 137 are bent toward the handle 110. The left and right ends of the middle portion 137 facilitate elastic movement of the cheek-facing portion 133. The other end of the cheek-facing portion 133 can vibrate or bend freely. The cheek-facing portion 133 can vibrate using the kinetic energy of the washing water 51.

[0131] A nozzle 130a is formed in the direction of the cervix between the crown and gum. The nozzle 130a sprays cleaning water 51 at an angle of 30 to 65 degrees. The nozzle 130a can also be configured to spray cleaning water 51 at a 45-degree angle. The nozzle 130a sprays cleaning water 51 towards the cervix. The buccal corresponding portion 133 vibrates to spray cleaning water 51 around the cervix. The cleaning water 51 is sprayed onto the crown and gum around the cervix. The cleaning water 51 massages the gums and improves blood flow without damaging them. The area between the crown and gum is rinsed while the crown 130a is separated from the cervix.

[0132] Figure 15 An example is shown where an oral cleaner 100 according to an embodiment of the present invention is bitten onto the teeth using a dental model.

[0133] refer to Figure 15 and Figures 4 to 9According to an embodiment of the present invention, an oral cleaner 100 includes: a handle 110 having an inflow channel 101 for the flow of cleaning water 51; and a mouthguard 130 having a spray hole 130a for spraying cleaning water 51 into the oral cavity. The mouthguard 130 includes: a labial-facing portion 131 formed at a position opposite to the labial surface of the teeth; a buccal-facing portion 133 connected to the labial-facing portion 131 and formed at a position opposite to the buccal surface of the teeth; a lingual-facing portion 135 formed at a position opposite to the lingual surface of the teeth; and an intermediate portion 137 formed at the position where the 7th, 8th, 9th, and 10th teeth occlude, for connecting the labial-facing portion 131 and the lingual-facing portion 135.

[0134] A central portion 137 is formed opposite to the chewing surface of the incisors. The central portion 137 is formed opposite to the chewing surface of the user's incisors to form a front suction hole 139 for attracting wastewater 53 present in the oral cavity. The central portion 137 is engaged by the 7th, 8th, 9th, and 10th teeth or the 6th, 7th, 8th, 9th, 10th, and 11th teeth. Cleaning water 51 flows between the incisors. A diffusion channel 103 is formed between the incisors. A straw 170 is disposed between the incisors. Wastewater 53 flows between the incisors. The front suction hole 139 is connected to the straw 170, and the front suction hole 139 is formed on the portion opposite the incisors. The front suction hole 139 opposite to the chewing surface of the incisors creates a strong negative pressure. The front suction hole 139 increases the flow rate around the incisors to enhance the rinsing force.

[0135] An oral cleaner 100 according to an embodiment of the present invention includes: a handle 110 having an inflow channel 101 for the flow of cleaning water 51; and a mouthguard 130 having a spray hole 130a for spraying cleaning water 51 into the oral cavity. The mouthguard 130 includes: a labial-facing portion 131 formed at a position opposite to the labial surface of the teeth; a buccal-facing portion 133 connected to the labial-facing portion 131 and formed at a position opposite to the buccal surface of the teeth; and a lingual-facing portion 135 formed at a position opposite to the lingual surface of the teeth; and an intermediate portion 137 formed at the position where the user's anterior teeth bite, for connecting the labial-facing portion 131 and the lingual-facing portion 135.

[0136] The middle portion 137 is formed away from the position where the 1st, 2nd, 3rd, 4th, 12th, 13th, 14th, 15th, and 16th teeth bite together, and the buccal corresponding portion 133 forms a free end. The middle portion 137 is bitten by the 7th, 8th, 9th, and 10th teeth. The buccal corresponding portion 133 can move elastically towards the lingual corresponding portion 135.

[0137] According to an embodiment of the present invention, an oral cleaner 100 includes: a core suction portion 150 formed on the user's tongue and connected to a lip-facing corresponding portion 131 for suctioning wastewater 53 inside the oral cavity; and a straw 170 disposed inside a middle portion 137 and forming a centralized channel 105 for the flow of wastewater 53 suctioned from the core suction portion 150.

[0138] A concentrating channel 105 is formed inside the straw 170. Wastewater 53 flowing in from the core suction section 150 and wastewater 53 flowing in through the vertical channel 177 flow together in the concentrating channel 105. The straw 170 includes a vertical channel 177 that protrudes longitudinally and forms flow gaps 190, 290 with the dental cup 130 longitudinally. The flow gaps 190, 290 form a diffusion channel 103 for the flow of rinsing water 51 between the straw 170 and the dental cup 130.

[0139] Figure 16a It means according to Figure 15 A diagram showing the flow of cleaning water and wastewater during use. Figure 16b It means according to Figure 15 An image showing the part of the hand that comes into close contact with the mouth protector during use.

[0140] refer to Figure 16a , Figure 16b as well as Figures 12 to 15 According to an embodiment of the present invention, an oral cleaner includes: a mouthguard 130 for spraying cleaning water 51 into the oral cavity; a core suction part 150 for suctioning wastewater 53 mixed with cleaning water 51 and saliva in the oral cavity; and a handle 110 having an inflow channel 101 for the flow of cleaning water 51 and an outlet channel 107 for the flow of wastewater 53 discharged from the core suction part 150, the handle 110 having a mouth guard 119 formed on the outer peripheral surface and bent rearward at the end.

[0141] The mouth guard 119 is curved into an arc shape, so that one lateral side is close to the adductor pollicis muscle and the other lateral side is close to the proximal phalanx of the thumb. The mouth guard 119 is an oval shape with its lateral ends curved backward. Wastewater 53 that is not sucked up by the core suction part 150 may spray out of the mouth. The mouth guard 119 is positioned between the user's mouth and hand to prevent wastewater 53 from scattering. The mouth guard 119 prevents contact between the mouth and hand. When the user grips the handle 110, the mouth guard 119 increases the contact area with the side of the fist. The mouth guard 119 allows the user to grip the handle 110 stably.

[0142] The handle 110 includes a mouth guard 119 formed on its outer peripheral surface and curved rearward at its lateral end. The handle 110 includes an oval-shaped mouth guard 119 protruding along its outer peripheral surface. The mouth guard 119 is formed on the outer peripheral surface of the handle 110. The mouth guard 119 curves toward the braces 130 to increase the contact area between the user's hand and the handle 110. The mouth guard 119 allows the user to hold the handle 110 stably with their hand. The mouth guard 119 prevents contact between the hand and lips. The mouth guard 119 prevents cleaning water 51 expelled from the mouth from spraying forward. The mouth guard 119 is formed on the handle 110 so that the user can easily identify the position to grip. The mouth guard 119 fits snugly against the side of the user's fist.

[0143] The mouth protector 119 curves gently toward the user's lips. This shape prevents contact between the user's mouth and hands. The mouth protector 119 prevents bacteria from entering the mouth through the hands. The mouth protector 119 is positioned in front of the mouth to prevent the scattering of unextracted spit-out wastewater 53.

[0144] The cleaning water 51 discharged from the main body flows into the handle 110. The cleaning water 51 flows upstream 101a of the inflow channel 101. The cleaning water 51 flows downstream 101b of the inflow channel 101. Since the inflow channel 101 is formed on one side of the handle 110 (left side in the figure), the cleaning water 51 is discharged from one side of the brace 130 (left side in the figure). A diffusion channel 103 is formed downstream 101b of the inflow channel 101.

[0145] After the cleaning water 51 enters the diffusion channel 103, it is distributed throughout all channels of the dental brace 130. A portion of the cleaning water 51 flows to the left side of the dental brace 130, while the remainder flows to the right side. A straw 170 is disposed within the diffusion channel 103. Flow gaps 190 and 290 are formed between the straw 170 and the dental brace 130. The cleaning water 51 flows to the right side of the dental brace 130 through these flow gaps.

[0146] A flow guide plate 179 can be configured on the handle 110 or the straw 170. The flow guide plate 179 divides the cleaning water 51 into two directions. Therefore, the cleaning water 51 flowing in from the left side of the handle 110 can flow to the right end of the dental brace 130. The structure described above reduces flow resistance while simultaneously performing suction and discharge, thereby uniformly and smoothly distributing the cleaning water 51.

[0147] The rinsing water 51 flows to the labial corresponding portion 131, the lingual corresponding portion 135, and the buccal corresponding portion 133. The rinsing water 51 is sprayed into the oral cavity through the spray nozzle 130a. The rinsing water 51 is sprayed towards the neck of the teeth. Like a cantilever, one side of the buccal corresponding portion 133 is connected to the labial corresponding portion 131, while the other side forms a free end. The side end 137b of the middle portion 137 is bent into a "C" shape, allowing the buccal corresponding portion 133 to move elastically towards the labial corresponding portion 131. The kinetic energy of the rinsing water 51 causes the buccal corresponding portion 133 to vibrate. Thus, the buccal corresponding portion 133 undergoes elastic movement. The vibration of the buccal corresponding portion 133 subtly changes the spray direction. That is, the target of the rinsing water 51 is slightly changed.

[0148] Cleaning water 51 may irritate the entire neck of the tooth, crown, and gums. Changing the spray direction of cleaning water 51 can not only remove foreign objects from between teeth but also massage the gums. Gum massage can strengthen gum tissue, improve blood circulation, and enhance gum immunity. Gum massage using cleaning water 51 will not harm the gums.

[0149] The cleaning water 51 sprayed into the mouth mixes with saliva and foreign matter to form wastewater 53. The oral purifier 100 must quickly remove the wastewater 53. When there is too much wastewater 53 in the mouth, it obstructs the spraying of the cleaning water 51. In addition, when there is too much wastewater 53, it may flow into the airway or esophagus. Therefore, it is necessary to remove the wastewater 53 quickly.

[0150] The oral cleaner 100 according to the invention draws in wastewater 53 through a core suction portion 150 and a front suction hole 139. When the user lowers their head slightly, the wastewater 53 may accumulate near the incisors. The front suction hole 139 draws in the wastewater 53 near the incisors. The front suction hole 139 may also be formed on both the upper and lower sides of the middle portion 137, but if it is formed on the lower side, there is a possibility that the wastewater 53 drawn in by the core suction portion 150 may be discharged. Therefore, the front suction hole 139 is preferably formed above the middle portion 137. Due to the shape of the middle portion 137, an empty space is formed between the buccal corresponding portion 133 and the lingual corresponding portion 135. The empty space allows the wastewater 53 to easily accumulate at the lower part. The wastewater 53 accumulated at the lower part flows into the lower suction hole 159 through the suction guide portion 153. The suction guide portion 153 includes a first suction guide portion 153a and a second suction guide portion 153b. The height (prominence) of the first suction guide portion 153a is higher than that of the lingual corresponding portion 135. The tongue contacts the first suction guide 153a, but does not directly contact the tongue-side corresponding portion 135. Wastewater 53 can flow into the gap between the tongue and the tongue-side corresponding portion 135, and can also flow into the first suction guide 153a. Because a groove 151 is formed in the suction guide 153, the suction guide 153 will not be blocked by the tongue. The height of the second suction guide 153b is lower than the height of the first suction guide 153a. The tongue will not block the second suction guide 153b. The first suction guide 153a formed at the front prevents the tongue from contacting the tongue-side corresponding portion 135 and also prevents the tongue from contacting the second suction guide 153b. The suction guide 153 is formed in a "U" shape. This shape increases the contact area with the wastewater 53 moving along the tongue groove formed in the center of the tongue.

[0151] The upper suction hole 155 is configured toward the palate to suction wastewater 53. As the wastewater 53 continues to spread within the oral cavity, wastewater 53 is also present on the upper side.

[0152] The height of the core suction section 150 is lower than that of the tongue-facing corresponding section 135. Furthermore, the core suction section 150 is surrounded by the tongue-facing corresponding section 135. The tongue-facing corresponding section 135 functions as a wall to confine the wastewater 53. That is, the wastewater 53 is captured by the tongue-facing corresponding section 135, and the upper suction hole 155 absorbs the wastewater 53.

[0153] The edge of the core suction part 150 is surrounded by the dental brace 130. This prevents the core suction part 150 from directly contacting the oral mucosa and damaging the delicate oral mucosa. The posterior suction port 157 suctions wastewater 53 present near the uvula or wastewater 53 that is about to reach the airway or esophagus via the uvula. The wastewater 53 suctioned by the core suction part 150 flows into the straw 170. Wastewater 53 flowing in through the front suction port 139 flows into the straw 170.

[0154] A concentrating channel 105 is formed inside the straw 170. The concentrating channel 105 is connected to the discharge channel 107. A vertical channel 177 is formed in the straw 170, and a vertical protrusion 137a is formed in the dental brace 130. The vertical channel 177 and the vertical protrusion 137a are interconnected to form flow gaps 190 and 290. The flow gaps 190 and 290 are gaps that form the diffusion channel 103. Even though the flow gaps 190 and 290 are formed in the center of the straw 170, they can minimize obstruction of the flow of the cleaning water 51 and form the diffusion channel 103.

[0155] Discharge channel 107 is formed on one side of handle 110 (right side in the figure), and core suction part 150 is located in the central part. The suction tube 170 requires a curved section. A curved channel 175 forms the curved portion of the concentrating channel 105. The curved channel 175 is located in the curved portion of the suction tube 170. The curved portion deflects the wastewater 53 to one side. The curved portion in the flow path can create a vacuum section. The curvature of the flow path and the formation of the vacuum increase water impact and flow resistance. There is a temporarily widened portion of discharge channel 107 upstream of discharge channel 107. Inflow partition 111 and discharge partition 117 are spaced apart, but a connecting partition 113, arranged at an angle, connects inflow partition 111 and discharge partition 117. The connecting partition 113 temporarily widens the discharge channel 107. The upstream 107a of discharge channel 107 is a space for mitigating the water impact caused by the wastewater 53 discharged from suction tube 170. Upstream of discharge channel 107, 107a, is a space for reducing the flow resistance of wastewater 53. Wastewater 53 is discharged to the outside through downstream of discharge channel 107, 107b. Wastewater 53 can be stored in the main body.

[0156] Figure 17 This is a perspective view of an oral cleaner according to another embodiment of the present invention. Figure 18 This is an exploded perspective view of an oral cleaner according to another embodiment of the present invention. Figure 19 This is a perspective view of the lower part 200a of an oral cleaner according to another embodiment of the present invention.

[0157] refer to Figures 17 to 19 According to an embodiment of the present invention, an oral cleaner 200 includes: a handle 210 having an inflow channel 201 for the flow of cleaning water 51; and a dental cup 230 having a plurality of spray holes 230a connected to the inflow channel 201 for spraying cleaning water 51 into the oral cavity.

[0158] The oral cleaner 200 has an upper part 200b and a lower part 200a. A straw 270 is provided between the upper part 200b and the lower part 200a.

[0159] After the cleaning water 51 flows into the upstream 201a of the inflow channel 201, it flows into the dental brace 230 through the downstream 201b of the inflow channel 201 and the diffusion channel 203. The cleaning water 51 flows through the upper and lower sides of the suction tube 270.

[0160] A core suction section 250 is disposed at the center of the brace 230. Wastewater 53 flowing in through the core suction section 250 is discharged to the handle 210 through the suction tube 270. Wastewater 53 flows from the upstream 207a to the downstream 207b of the discharge channel 207. Wastewater 53 is disposed of after being discharged to the main body or the outside.

[0161] Figure 20 This is a perspective view of the upper part 200b of an oral cleaner according to another embodiment of the present invention. Figure 21 This is a perspective view of an oral cleaner with a straw 270 attached to the upper part 200b of the device according to another embodiment of the present invention. Figure 22 yes Figure 17 Section 22-22. Figure 23 yes Figure 22 The flow direction of the cleaning water 51.

[0162] refer to Figures 20 to 23 According to an embodiment of the present invention, an oral cleaner 200 includes: a handle 210 having an inflow channel 201 for the flow of cleaning water 51; and a dental cup 230 having a plurality of spray holes 230a connected to the inflow channel 201 for spraying cleaning water 51 into the oral cavity, and a water stopper 236 being formed between the plurality of spray holes 230a inside the dental cup 230.

[0163] The cleaning water 51 flows towards the dental brace 230. A portion of the cleaning water 51 is returned by the water-stopping element 236. Multiple water-stopping elements are formed, and a portion of the returned cleaning water 51 is discharged to the outside through the spray hole 230a, while a portion is retained and circulated among the water-stopping elements 236. Multiple water-stopping elements 236 are formed, and a spray groove 230b is formed between the multiple water-stopping elements 236 to allow the cleaning water 51 to flow towards the spray hole 230a.

[0164] Multiple water-stopping elements 236 are formed, and a spray channel 230b is formed between the multiple water-stopping elements 236 to allow the cleaning water 51 to flow towards the spray hole 230a. The spray channel 230b is formed between the water-stopping elements 236. The spray channel 230b is also formed in each spray hole 230a. The cleaning water 51 trapped between the water-stopping elements 236 flows to the spray hole 230a through the spray channel 230b. Multiple water-stopping elements 236 are formed, and a water storage portion 236b for storing the flowing cleaning water 51 is formed between the multiple water-stopping elements 236. The water-stopping element 236 has a water storage portion 236b arranged along the flow direction of the cleaning water 51 to guide a portion of the cleaning water 51 backflow.

[0165] The volume of multiple water storage sections 236b gradually increases rearward. The water storage section 236b is used to store the cleaning water 51. Of the cleaning water 51 flowing into the water storage section 236b, part is discharged through the spray hole 230a, part circulates within the water storage section 236b, and part is discharged to the outside and flows into other water storage sections 236b. The water-stopping member 236 is formed to be relatively long in the vertical direction, and has a flow hole 236a formed in the center for the cleaning water 51 to flow through. The water-stopping member 236 is arranged perpendicular to the flow direction of the cleaning water 51.

[0166] An oral cleaner 200 according to an embodiment of the present invention includes: a handle 210 having an inflow channel 201 for the flow of cleaning water 51; and a dental cup 230 having a water storage portion 236b connected to the inflow channel 201 for storing cleaning water 51, and a spray hole 230a for spraying cleaning water 51 into the oral cavity formed in the water storage portion 236b.

[0167] A spray channel 230b is formed in the water storage section 236b to direct the cleaning water 51 towards the spray hole 230a. Multiple water storage sections 236b are formed, and a water-stopping member 236 is formed between them. At least one spray channel 230b and at least one spray hole 230a are formed in each water storage section 236b. The water-stopping member 236 has a flow hole 236a, allowing cleaning water 51 exceeding the storage capacity of the water storage section 236b to flow to other water storage sections 236b. Multiple water-stopping members 236, multiple water storage sections 236b, and multiple flow holes 236a are formed inside the dental brace 230. Cleaning water 51 exceeding the capacity of the water storage section 236b flows to other water storage sections 236b through the flow holes 236a.

[0168] According to an embodiment of the present invention, an oral cleaner 200 includes: a handle 210 having an inflow channel 201 for the flow of cleaning water 51; and a dental cup 230 having a plurality of water-stopping members 236 arranged along the flow direction of the cleaning water 51 supplied from the inflow channel 201, a plurality of water-retaining portions 236b being formed inside the water-stopping members, and at least one spray hole 230a being formed in the water-retaining portion 236b for spraying the cleaning water 51 into the oral cavity.

[0169] Multiple water storage sections 236b are formed along the flow direction of the cleaning water 51. Multiple water-stopping elements 236 are formed along the flow direction of the cleaning water 51. The water-stopping elements 236 are formed vertically to allow the incoming cleaning water 51 to circulate in an upward and downward direction.

[0170] Figure 24 This is a top view of the lower part 200a of an oral cleaner according to another embodiment of the present invention. Figure 25 This is a top view of the upper part 200b of an oral cleaner according to another embodiment of the present invention. Figure 26 yes Figure 17 Enlarged view of part 230 of the braces. Figure 27 yes Figure 26 A bottom view of braces 230.

[0171] refer to Figures 24 to 27 According to an embodiment of the present invention, an oral cleaner 200 includes: a handle 210 having an inflow channel 201 for the flow of cleaning water 51 and an outlet channel 207 for the flow of wastewater 53 drawn from the oral cavity; a mouthguard 230 connected to the inflow channel 201 and spraying cleaning water 51 into the oral cavity; a core suction part 250 for suctioning the wastewater 53 discharged from the mouthguard 230 after rinsing the teeth; and a straw 270 for connecting the core suction part 250 and the handle 210, wherein a splitter 256a and 256b are formed inside the core suction part 250, the splitter being disposed in front of the straw 270 to split the suctioned wastewater 53.

[0172] The core suction section 250 has a rear suction hole 257 formed at a position opposite to the uvula, and the diverters 256a and 256b are disposed between the rear suction hole 257 and the suction tube 270.

[0173] In the braces 230, a front suction hole 239 is formed on the portion opposite to the chewing surface of the upper incisors. Cleansing water 51 is sprayed into the braces 230 and the oral cavity. A core suction section 250 draws in dirty water 53 from the oral cavity. The cleansing water 51 sprayed from the braces 230 mixes with debris and saliva in the oral cavity to form dirty water 53. The dirty water 53 is drawn in by the core suction section 250. The dirty water 53 is drawn in through the front suction hole 239 located in the middle portion 237.

[0174] An oral cleaner 200 according to an embodiment of the present invention includes: a handle 210 having an inflow channel 201 for the flow of cleaning water 51 and an outlet channel 207 for the flow of wastewater 53 drawn from the oral cavity; a mouthguard 230 connected to the inflow channel 201 and spraying cleaning water 51 into the oral cavity; a core suction part 250 for suctioning the wastewater 53 discharged from the mouthguard 230 after rinsing the teeth; and a straw 270 for connecting the core suction part 250 and the handle 210, wherein a damper 238 is formed inside the mouthguard 230 in the lateral direction of the straw 270 to prevent interference with the cleaning water 52.

[0175] The brace 230 includes: a labial-facing portion 231 formed at a position opposite to the labial surface of the teeth; a buccal-facing portion 233 connected to the labial-facing portion 231 and formed at a position opposite to the buccal surface of the teeth; a lingual-facing portion 235 formed at a position opposite to the lingual surface of the teeth; and an intermediate portion 237, both ends of which start from the connection point of the labial-facing portion 231 and the lingual-facing portion 235 and connect the labial-facing portion 231 and the lingual-facing portion 235, with a damper 238 disposed in the intermediate portion 237.

[0176] The cleaning water 51 flowing in through the inflow channel 201 flows into the diffusion channel 203. A suction tube 270 is disposed in the middle section 237. The suction tube 270 is disposed in the diffusion channel 203. The cleaning water 51 collides with the suction tube 270 disposed in the diffusion channel 203. A damper prevents direct collision between the suction tube 270 and the cleaning water 51. The damper prevents direct collision between the cleaning water 51 and the side of the suction tube 270. The damper suppresses vibration of the suction tube 270 inside the dental brace 230.

[0177] In the brace 230, a front suction hole 239 is formed on the portion opposite the chewing surface of the upper teeth. A vertical protrusion 237a is formed at the edge of the front suction hole 239, protruding inward and forming a gap with the straw 270. A diffusion channel 203 is formed between the upper and lower surfaces of the brace 230 and the straw 270. The vertical protrusion 237a forms the gap between the brace 230 and the straw 270.

[0178] Figure 28 This is a perspective view of a straw 270 according to another embodiment of the present invention. Figure 29 yes Figure 28 Top view of the straw 270. Figure 30 yes Figure 28 A bottom view of the straw at 270 degrees.

[0179] refer to Figures 28 to 30The straw 270 includes: a front channel 271 connected to the discharge channel 207 of the handle 210; a rear channel 273 connected to the core suction part 250; and a curved channel 275 configured to be inclined relative to the center line 273c of the rear channel and the center line 271c of the front channel, for connecting the rear channel 273 and the front channel 271.

[0180] A vertical channel communicating with the front suction hole 239 is formed on the upper side of the rear channel 273 of the straw 270. A vertical rod 288 is formed below the rear channel 273 of the straw 270 to form flow gaps 190 and 290 between the rod and the dental brace 230 for the flow of cleaning water 51.

[0181] Figure 31 This indicates the flow of wastewater 53 formed due to the suction pipe 270 and the water diffuser 216. Figure 32 Indicates in Figure 24 A portion of the sewage flowed. Figure 33 Indicates in Figure 25 A portion of the sewage flowed.

[0182] refer to Figures 31 to 33 Wastewater 53 is drawn into the core suction section 250 from multiple locations, including the lower suction hole 259 and the rear suction hole 257. Diverters 256a and 256b are provided in the core suction section 250. Diverters 256a and 256b divert the wastewater 53 flowing in through the rear suction hole 257. Diverters 256a and 256b divert the cleaning water 51 flowing in the suction tube 270. Diverters 256a and 256b increase the flow velocity of the wastewater 53 flowing in the suction tube 270. Diverters 256a and 256b lower the pressure inside the suction tube 270 compared to the pressure in the core suction section 250. A lower suction hole 259 is formed in the core suction section 250 opposite to the tongue, and diverters 256a and 256b are provided at positions that divide the lower suction hole 259.

[0183] Diverters 256a and 256b can be formed separately, vertically. Upper separators 256a and 256ba are formed in the upper part 200b, and lower separators 256a and 256bb are formed in the lower part 200a. Diverters 256a and 256b divert wastewater 53 flowing through the lower suction hole 259. Diverters 256a and 256b increase the flow velocity of wastewater 53 by adjusting the flow direction of the wastewater 53. Diverters 256a and 256b are formed by the upper separators 256a and 256ba and the lower separators 256a and 256bb, and are interconnected. The lower separators 256a and 256bb are disposed in the lower suction hole 259.

[0184] An oral cleaner 200 according to an embodiment of the present invention includes: a handle 210 having an inflow channel 201 for the flow of cleaning water 51 and an outlet channel 207 for the flow of wastewater 53 drawn from the oral cavity; a mouthguard 230 connected to the inflow channel 201 and spraying cleaning water 51 into the oral cavity; a core suction unit 250 for suctioning the wastewater 53 discharged from the mouthguard 230 after rinsing the teeth; and a straw 270 for connecting the core suction unit 250 and the handle 210. A water diffuser 216 is provided inside the mouthguard 230, which diverts the wastewater 53 discharged from the straw 270 and supplies it to the outlet channel 207.

[0185] Wastewater 53 drawn from the core suction section 250 and wastewater 53 drawn from the front suction hole 239 flows through the straw 270. The wastewater 53 flowing in from different directions collides with each other.

[0186] The water diffuser 216 diverts the wastewater 53 discharged from the suction pipe 270. The water diffuser 216 diverts the flow direction of the wastewater 53. The water diffuser 216 mitigates collisions between wastewater particles 53. The water diffuser 216 guides the wastewater 53 with a specific direction. The water diffuser 216 increases the flow velocity of the wastewater 53 flowing through the discharge channel 207. The water diffuser 216 lowers the pressure in the discharge channel 207 compared to the pressure in the suction pipe 270.

[0187] Refer again Figure 28 and Figure 31 The direction of the wastewater 53 changes as it passes through the curved channel 275. The water diffuser 216 is positioned on the centerline 271C of the front channel.

[0188] The curved channel 275 is arranged in a straight line towards the upstream direction 207a of the discharge channel 207. The curved channel 275 is also arranged at an angle towards the downstream direction 207b of the discharge channel 207. In the water diffuser 216, one side facing the forward channel 271 is arranged parallel to the centerline 271C of the forward channel, while the other side has a shape that is inclined in the same direction as the curved channel 275. The angle of inclination of the other side can be the same as the angle of inclination of the curved channel 275.

[0189] A portion of the wastewater 53 passing through the suction pipe 270 flows along the water diffuser 216. Flow separation of the wastewater 53 may occur if the water diffuser 216 is tilted excessively; therefore, it is preferable to avoid excessive tilting.

[0190] The water diffuser 216 and the diverters 256a and 256b smoothly converge the wastewater 53 to reduce the occurrence of vortex-like wakes or turbulent flows. The water diffuser 216 and the diverters 256a and 256b also smoothly converge the wastewater 53 to reduce vibration and noise.

[0191] Although the above figures illustrate preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above. Various modifications can be made by those skilled in the art without departing from the spirit of the present invention. These modifications should not be understood solely from the technical spirit or prospects of the present invention.

Claims

1. An oral hygiene device, wherein, include: The handle has an inflow channel for the flow of cleaning water and an outflow channel for the flow of wastewater drawn into the mouth. The braces spray cleaning water supplied through the handle into the inside of the mouth; as well as The core suction section has a lower suction hole for suctioning wastewater from rinsing the teeth after the dental braces have been discharged. The lower suction hole is formed on the center line of the braces in the anteroposterior direction and is located opposite the tongue. The surface where the core suction part and the brace meet is a mouth cleaner that is bent into a "U" shape.

2. The oral cleaner according to claim 1, wherein, The core suction portion has a suction guide portion that protrudes from the edge of the lower suction hole and is used to guide sewage to the lower suction hole. The suction guide section forms a trough for the sewage to flow forward in an oral cleaner.

3. The oral cleaner according to claim 1, wherein, The lower suction hole includes a first lower suction hole and a second lower suction hole formed behind the first lower suction hole. The first suction guide portion formed in the first lower suction hole is configured to be higher than the second suction guide portion formed in the second lower suction hole of the oral cleaner.

4. The oral cleaner according to claim 1, wherein, The core suction part has a "U"-shaped suction guide part, which is formed at the edge of the lower suction hole and protrudes downward into the oral cleaner.

5. An oral hygiene device, wherein, include: The handle has an inflow channel for the flow of cleaning water and an outflow channel for the flow of wastewater drawn into the mouth. The braces spray cleaning water supplied through the handle into the inside of the mouth; as well as The core suction section has a lower suction hole for suctioning wastewater from rinsing the teeth after the dental braces have been discharged. The lower suction hole is formed on the oral cleaner along the front-back line passing through the center of the braces' width direction.

6. The oral cleaner according to claim 5, wherein, The lower end of the core suction section is formed at a higher position than the lower end of the brace. The upper end of the core suction part is formed as an oral cleaner that is lower than the upper end of the braces.

7. The oral cleaner according to claim 5, wherein, The brace has a front suction hole on the part opposite to the chewing surface of the incisors. The core suction part has a lower suction hole at the position opposite to the tongue, an upper suction hole at the position opposite to the palate, and a posterior suction hole at the position opposite to the uvula. The oral cleaner in which the front suction hole, the lower suction hole, the upper suction hole and the rear suction hole are formed on a straight line along the center line in the front-back direction.

8. An oral hygiene device, wherein, include: The handle has an inflow channel for the flow of cleaning water and an outflow channel for the flow of wastewater drawn into the mouth. The mouthguard sprays cleaning water supplied through the handle into the oral cavity and has a labial surface corresponding part formed opposite to the labial surface of the teeth, a buccal surface corresponding part formed opposite to the buccal surface of the teeth, and a lingual surface corresponding part formed opposite to the lingual surface of the teeth. as well as The core suction part, combined with the tongue-facing corresponding part, is positioned at a location corresponding to the center of the tongue, and suctions the wastewater that has been flushed from the teeth after being discharged from the braces on the user's median sulcus of the tongue. The outer periphery of the oral cleaner is shaped to be surrounded by the tongue-facing corresponding part.

9. The oral cleaner according to claim 8, wherein, A lower suction hole, opposite to the user's tongue, is formed in the center of the suction part. The lower suction hole includes a first lower suction hole and a second lower suction hole formed behind the first lower suction hole. The oral cleaner has a first suction guide portion formed in the first lower suction hole and protruding downwards, which protrudes downwards more than the second suction guide portion formed in the second lower suction hole and protruding downwards.

10. The oral cleaner according to claim 8, wherein, The oral cavity cleaner has its rear end positioned further forward than the rear end of the cheek-facing corresponding portion and further forward than the rear end of the tongue-facing corresponding portion.

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