WO2022092668A1 - Suction and injection structure of oral cleaner - Google Patents

Abstract

An oral cleaner according to an embodiment of the present invention comprises: a mouthpiece for injecting a washing water into the mouth; a core suction part for suctioning a contaminated water, in which the washing water and saliva are mixed, from inside the mouth; and a handle having formed therein an inlet flow path, in which the washing water flows, a discharge flow path, in which the contaminated water flows, and a diffusion flow path for supplying the washing water to the mouthpiece by forming a space in which the washing water flows above and/or below the discharge flow path.

Description

Suction and injection structure of mouthwash

The present invention relates to a suction and injection structure of an oral irrigator, and more particularly, to a suction and injection structure of the oral irrigator for spraying washing water into the oral cavity and sucking and discharging contaminated water in the oral cavity.

1 is a diagram showing numbers to classify teeth by position. 2 is a view showing the name of each part of the tooth.

1 to 2, the number of human teeth is usually 26 to 32. Even if a normal bone is broken, it has blood vessels inside, so it can be regenerated if blood supplies nutrients. However, since the blood vessels do not reach the enamel, the teeth do not regenerate, so management is very important.

Tooth enamel loses calcium little by little when it comes into contact with acid, but when the acidity in the oral cavity returns to basic, calcium ions in the saliva crystallize back into the enamel and are restored little by little. The enamel surface is maintained by repeating the loss and restoration of calcium every minute of every day, as long as the alveolar tissue itself is not lost.

However, bacteria eat the food leftovers after eating, multiply and form plaque. Bacillus mutans is one of the bacteria constituting plaque, and Bacillus mutans causes adverse effects such as increasing acidity of teeth, corroding teeth, and causing inflammation of gums. Plaque also prevents the calcium ions in the saliva that need to be restored to the damaged teeth from going to the teeth. Calcium ions that do not reach the teeth are absorbed by plaque and crystallize. After calcium absorption and crystallization, the plaque hardens and adheres to the teeth. this is tartar Although tartar blocks the outside of the enamel, it prevents chemical repair of the enamel surface by allowing acids to pass through and retaining calcium ions. The tartar made in this way makes it more difficult to remove plaque, and the vicious cycle is repeated. In other words, once a tooth is weak, no matter how much you brush it, it cannot become strong. In addition, since tartar is a good breeding ground for harmful bacteria, especially gynecomastia (Bacillus gynecomastia), it causes inflammation and necrosis of the gums.

The basic preventive measure is to remove plaque and waste materials between teeth with proper brushing. However, since the arrangement of teeth is different for each person, no matter how hard they brush their teeth, there are inevitably parts that are difficult to manage.

Therefore, there is a need for an oral irrigator capable of maintaining the cleanliness of the oral cavity regardless of the arrangement of teeth.

The problems to be solved by the present invention are as follows.

First, it is to provide a handle and a mouthpiece capable of simultaneously supplying washing water and discharging contaminated water.

Second, it is to provide a suction structure that can prevent damage to the oral mucosa while smoothly sucking the contaminated water inside the oral cavity.

Third, it is to provide a structure of a mouthpiece that can smoothly perform discharge and suction even in a narrow space called the oral cavity.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the mouthwash according to some embodiments of the present invention, a mouthpiece for spraying the washing water into the oral cavity; a core suction unit for sucking contaminated water mixed with washing water and saliva in the oral cavity; and a handle having a diffusion path for supplying the washing water to the mouthpiece by forming a space through which the washing water flows in at least one of an inflow path through which the washing water flows, a discharge path through which the contaminated water flows, and an upper side or a lower side of the discharge path ( handle) can be included.

Mouthwash according to some embodiments of the present invention, a mouthpiece for spraying washing water into the oral cavity; a core suction unit for sucking contaminated water mixed with washing water and saliva in the oral cavity; and a handle forming an inflow path through which the washing water flows, a diffusion path connecting the inflow path and the mouthpiece, and a discharge path through which the contaminated water discharged from the core suction unit flows, the handle comprising: forming an inlet bulkhead; an outlet bulkhead disposed to be spaced apart from the inlet bulkhead and forming an outlet flow path; and a connecting bulkhead connecting the discharge bulkhead and the inlet bulkhead and arranged to be inclined with respect to the front-rear centerline of the handle to linearly decrease the width of the discharge channel from rear to front.

The oral irrigator according to some embodiments of the present invention includes: a handle having an inlet passage through which washing water flows and an outlet passage through which contaminated water sucked from the oral cavity flows; a mouthpiece for spraying the washing water supplied through the handle into the oral cavity; and a core suction unit having a lower suction hole for sucking contaminated water discharged from the mouthpiece to wash teeth.

The oral irrigator according to some embodiments of the present invention includes: a handle having an inlet passage through which washing water flows and an outlet passage through which contaminated water sucked from the oral cavity flows; a mouthpiece for spraying the washing water supplied through the handle into the oral cavity; and a core suction unit connected to the mouthpiece and sucking the contaminated water discharged from the mouthpiece to wash the teeth, wherein the core suction unit may have an upper suction hole formed at a position facing the roof of the mouth.

The oral irrigator according to some embodiments of the present invention includes: a handle having an inlet passage through which washing water flows and an outlet passage through which contaminated water sucked from the oral cavity flows; The washing water supplied through the handle is sprayed into the oral cavity, and the labial surface-corresponding part formed at a position facing the labial surface of the tooth and the buccal surface-facing part formed at the position facing the buccal surface of the tooth and the tooth a mouthpiece including a lingual surface-facing portion formed at a position facing the lingual surface; And it may include a core suction unit for sucking the contaminated water discharged from the mouthpiece to wash the teeth on the user's median sulcus of tongue, and the outer rim is coupled to the tongue corresponding to the unit.

The oral irrigator according to some embodiments of the present invention includes a handle having an inlet flow path through which the washing water flows; and a mouthpiece having an injection hole for spraying the washing water into the oral cavity, wherein the mouthpiece includes: a labial surface corresponding portion formed at a position facing the labial surface of the tooth; a buccal corresponding portion connected to the labial counterpart and formed at a position facing the buccal surface of the tooth; The lingual surface of the tooth (lingual surface) and formed in a position facing the corresponding portion of the tongue; And both ends may include an intermediate portion (intermediation) that starts at the connection point of the labial surface-corresponding part and the tongue-face-compatible part and connects the labial surface-corresponding part and the tongue-facing part.

The oral irrigator according to some embodiments of the present invention includes a handle having an inlet flow path through which the washing water flows; and a mouthpiece having an injection hole for spraying the washing water into the oral cavity, wherein the mouthpiece includes: a labial surface corresponding portion formed at a position facing the labial surface of the tooth; a buccal corresponding portion connected to the labial counterpart and formed at a position facing the buccal surface of the tooth; The lingual surface of the tooth (lingual surface) and formed in a position facing the corresponding portion of the tongue; And formed at the position where teeth 7, 8, 9, and 10 are bitten to connect the labial counterpart and the lingual counterpart, and the lateral end is connected to the boundary between the buccal counterpart and the lingual counterpart. Intermediation ), wherein an outer injection flow path is formed in the labial surface-corresponding part and the buccal surface-corresponding part, and an inner injection flow path is formed in the tongue-facing part, and the intermediate part connects the outer injection flow path and the inner injection flow path A diffusion path is formed.

The oral irrigator according to some embodiments of the present invention includes a labial surface-corresponding portion formed at a position facing the labial surface of a tooth, a lingual surface-facing portion formed at a position facing the lingual surface of the tooth, and the labial surface-corresponding portion and a mouthpiece including an intermediate part connecting the tongue-responsive part; a core suction unit disposed on the user's tongue to suck contaminated water inside the oral cavity; and a vertical channel disposed inside the intermediate part, forming a concentration flow path through which the contaminated water sucked in the core suction part flows, and protruding in the longitudinal direction to form a flow interval in the longitudinal direction with the mouthpiece. may include

According to the mouthwash of the present invention, one or more of the following effects are obtained.

First, a handle and a mouthpiece capable of simultaneously supplying washing water and discharging contaminated water are provided.

Second, it provides a suction structure that can prevent damage to the oral mucosa while smoothly sucking the contaminated water inside the oral cavity.

Third, it provides a structure of a mouthpiece that can smoothly perform discharge and suction even in a narrow space called the oral cavity.

Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a diagram showing numbers to classify teeth by position.

2 is a view showing the name of each part of the tooth.

3 is a perspective view of an oral irrigator according to an embodiment of the present invention.

4 is an exploded perspective view of an oral irrigator according to an embodiment of the present invention.

5 is a perspective view showing a lower portion of the oral irrigator according to an embodiment of the present invention.

6 is a plan view of a lower portion according to an embodiment of the present invention.

7A is a plan view of an upper portion according to an embodiment of the present invention.

Figure 7b is a view for explaining the upper portion of Figure 7a in comparison with the oral structure of Figure 1;

8 is an enlarged view of the mouthpiece portion of the oral irrigator according to FIG.

Figure 9 is a representation of the portion of Figure 8 from the lower side.

10 is a perspective view of a suction pipe according to an embodiment of the present invention.

11 is a plan view of a suction pipe according to an embodiment of the present invention.

12 is a perspective view illustrating a shape in which a suction pipe is coupled to the lower part of FIG.

13 is a plan view illustrating a shape in which a suction pipe is coupled to the lower part of FIG. 6 .

14 is a perspective view illustrating a shape in which a suction pipe is coupled to the upper part of FIG. 7 .

15 is a diagram illustrating an example in which the mouthwash according to an embodiment of the present invention is bitten by a tooth using a tooth model.

16A is a view illustrating the flow of washing water and contaminated water when used according to FIG. 15 .

Figure 16b is a representation of the portion of the hand in close contact with the mouthguard when used according to Figure 15.

17 is a perspective view of an oral irrigator according to another embodiment of the present invention.

18 is an exploded perspective view of an oral irrigator according to another embodiment of the present invention.

19 is a perspective view of the lower portion of the oral irrigator according to another embodiment of the present invention.

20 is a perspective view of an upper portion of an oral irrigator according to another embodiment of the present invention.

21 is a perspective view in which a suction pipe is coupled to the upper part of the oral irrigator according to another embodiment of the present invention.

Fig. 22 is a cross-sectional view 22-22 of Fig. 17;

FIG. 23 shows the flow of washing water in FIG. 22 .

24 is a plan view of the lower portion of the oral irrigator according to another embodiment of the present invention.

25 is a plan view of the upper portion of the oral irrigator according to another embodiment of the present invention.

Fig. 26 is an enlarged view of the mouthpiece of Fig. 17;

Fig. 27 is a view showing the mouthpiece of Fig. 26 from the downward direction.

28 is a perspective view of a suction pipe according to another embodiment of the present invention.

Fig. 29 is a plan view of the suction pipe of Fig. 28;

Fig. 30 is a bottom view of the suction pipe of Fig. 28;

Figure 31 shows the flow of contaminated water due to the suction pipe and the water diffuser.

Fig. 32 shows the flow of contaminated water in a part of Fig. 24;

Fig. 33 shows the flow of contaminated water in a part of Fig. 25;

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, the present invention will be described with reference to the drawings.

3 is a perspective view of the oral irrigator 100 according to an embodiment of the present invention. 4 is an exploded perspective view of the oral irrigator 100 according to an embodiment of the present invention.

3 to 4 , the oral irrigator 100 according to an embodiment of the present invention has a main body (not shown) that supplies washing water 51 and stores the inhaled contaminated water 53, and a handle connected to the main body. 110 , a mouthpiece 130 connected to the handle 110 to spray the washing water 51 , and a core suction unit 150 connected to the mouthpiece 130 and sucking the contaminated water 53 .

The body may include a plurality of water pumps. The plurality of water pumps discharge the washing water 51 to the handle 110 or generate power to suck the contaminated water 53 from the core suction unit 150 . The water pump generates a positive pressure to discharge the washing water 51 , and generates a negative pressure to suck in the contaminated water 53 . A plurality of water pumps are provided, one generating a positive pressure and the other generating a negative pressure.

The handle 110 , the mouthpiece 130 , and the core suction unit 150 may be integrally formed.

The handle 110 , the mouthpiece 130 , and the core suction unit 150 may be formed separately into an upper portion 100b and a lower portion 100a . The upper part 100b forms the upper side of the handle 110, the mouthpiece 130, and the core suction part 150, and the lower part 100a is the handle 110, the mouthpiece 130, and the core suction part ( 150) may be formed. The suction pipe 170 may be disposed between the upper part 100b and the lower part 100a.

5 is a perspective view illustrating the lower portion 100a of the oral irrigator 100 according to an embodiment of the present invention. 6 is a plan view of the lower portion 100a according to an embodiment of the present invention. 7 is a plan view of the upper portion 100b according to an embodiment of the present invention.

5 to 7 , the oral irrigator 100 according to an embodiment of the present invention includes a mouthpiece 130 for spraying the washing water 51 into the oral cavity; a core suction unit 150 for sucking the contaminated water 53 in which the washing water 51 and saliva are mixed in the oral cavity; and a handle formed with an inflow path 101 through which the washing water 51 flows, a discharge path 107 through which the contaminated water 53 flows, and a diffusion path 103 connecting the inflow path 101 and the mouthpiece 130 . Including 110 (handle), the size of the lateral width 103d of the diffusion passage 103 is the lateral width 101d of the inflow passage 101 or the lateral width 107d of the discharge passage 107 . ) is formed larger.

The mouthpiece 130 injects the washing water 51 into the oral cavity. The mouthpiece 130 sprays the washing water 51 toward the gums and teeth. The contaminated water 53 is a mixture of washing water 51, saliva, plaque, and wastes. The core suction unit 150 sucks the contaminated water 53 . The core suction unit 150 sucks the contaminated water 53 and discharges the contaminated water 53 to the handle 110 . The washing water 51 supplied from the body flows through the inflow path 101 formed in the handle 110 . An inflow passage 101 is formed on one side of the handle 110 and an exhaust passage 107 is formed on the other side of the handle 110 . The contaminated water 53 sucked in from the core suction unit 150 flows through the discharge passage 107 .

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

The washing water 51 flowing on one side of the handle 110 is evenly distributed to the left and right sides of the mouthpiece 130 through the diffusion passage 103 . The width of the diffusion passage 103 is greater than the width of the downstream 101b of the inflow passage 101 . The lateral width 103d of the diffusion passage 103 is formed to be larger than the sum of the lateral width 101d of the inflow passage 101 and the lateral width 107d of the discharge passage 107 . The width of the diffusion passage 103 is greater than the width of the upstream 107a of the discharge passage 107 . The width of the diffusion passage 103 may be equal to or greater than the sum of the width of the upstream 107a of the discharge passage 107 and the width of the downstream 101b of the inflow passage 101 .

The discharge passage 107 is connected to a suction pipe 170 to be described later. The diffusion passage 103 is formed at the upper end and/or lower end of the suction pipe 170 as well as the downstream 101b of the inflow passage 101 . The diffusion passage 103 is formed across the suction pipe 170 . For example, the inflow passage 101 is formed on the left side of the handle 110 , and the diffusion passage 103 is formed from the left side of the handle 110 to the right side of the handle 110 through the suction pipe 170 . .

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

Inside the handle 110, a flow path for dividing the washing water 51 discharged from the inflow path 101 at the point where the handle 110 and the mouthpiece 130 are connected to flow the washing water 51 in different directions. A guide 179 is disposed. A flow path guide 179 is disposed behind the downstream 101b of the inflow path 101 . The flow path guide 179 is disposed at the downstream 101b of the inflow path 101 to divide the washing water 51 . The flow path guide 179 is disposed in the diffusion path 103 . The flow guide 179 is disposed at a position facing the front teeth to divide the flow direction of the washing water 51 into the left and right directions of the front teeth. The flow guide 179 is disposed on the longitudinal (front-to-back direction) center line C-C' of the handle 110 . The flow guide 179 is disposed in front of the front teeth. The washing water 51 is divided and diffused in front of the incisors and distributed throughout the mouthpiece 130 . The mouthpiece 130 is a left labial surface-corresponding portion (131a) and a right labial-facing portion (131b) formed at a position facing the labial surface of the tooth and the left side formed at a position facing the buccal surface of the tooth. It includes a buccal-corresponding part 133a and a right buccal-corresponding part 133b, and a left lingual-facing part 135a and a right lingual-facing part 135b formed at positions facing the lingual surface of the tooth, and a flow guide ( 179 is arranged to divide and flow the washing water 51 toward the left labial counterpart (131a) and the right labial counterpart (131b).

The flow guide 179 divides the washing water 51 supplied from one side of the handle 110 . The washing water 51 supplied from the inflow path 101 passes through the flow path guide 179 toward the pure surface counteracting part 131 . The washing water 51 that has passed through the labial surface corresponding part 131 is directed to the tongue counterpart 135 . A gap is formed in the left and right inner walls of the flow path guide 179 and the handle 110 . A portion of the washing water 51 is directed to the left labial surface corresponding portion 131a through the gap. A portion of the washing water 51 is directed toward the right labial surface corresponding portion 131b through the inclined surface of the flow path guide 179 .

The flow guide 179 is inclined on the front-rear center line C-C' of the mouthpiece 130 and the handle 110 . The washing water 51 discharged from the inflow passage 101 is diffused along the passage guide 179 disposed in the diffusion passage 103 . The washing water 51 is diffused toward the mouthpiece 130 along the inclined surface of the flow guide 179 .

The oral irrigator 100 according to an embodiment of the present invention has a suction pipe 170 that forms a concentration flow path 105 through which the contaminated water 53 flows and connects the core suction unit 150 and the discharge flow path 107 . ), and the suction pipe 170 is disposed inside the diffusion passage 103 .

The diffusion passage 103 and the concentration passage 105 are formed to cross each other. The suction pipe 170 connects the core suction unit 150 and the discharge passage 107 . The suction pipe 170 forms a concentration flow path 105 . In the concentration flow path 105, the contaminated water 53 sucked by the core suction unit 150 flows. The concentration flow path 105 connects the suction pipe 170 and the discharge flow path 107 . The suction pipe 170 is disposed in the diffusion passage 103 , and the washing water 51 is diffused throughout the mouthpiece 130 through the upper end and/or lower end of the suction pipe 170 . The mouthpiece 130 and the suction pipe 170 have upper and/or lower ends spaced apart from each other, and a detailed description will be given later.

The oral irrigator according to an embodiment of the present invention comprises: a mouthpiece 130 for spraying the washing water 51 into the oral cavity; a core suction unit 150 for sucking the contaminated water 53 in which the washing water 51 and saliva are mixed in the oral cavity; and the inflow path 101 through which the washing water 51 flows, the diffusion path 103 connecting the inflow path 101 and the mouthpiece 130, and the contaminated water 53 discharged from the core suction unit 150 flows. and a handle 110 forming an outlet passage 107, the handle 110 comprising: an inlet partition 111 forming an inlet passage 101; an outlet barrier rib 117 disposed to be spaced apart from the inlet barrier 111 and forming an outlet passage 107; and a connecting bulkhead 113 connected to the rear end of the discharge bulkhead 117 and connected to the rear end of the inlet bulkhead 111 .

The inflow partition wall 111 is formed extending from the upstream 101a of the inflow passage 101 to the downstream 101b of the inflow passage 101 . The connection partition wall 113 is connected to the inflow partition wall 111 . The connecting partition wall 113 is formed to extend to the front of the diffusion passage 103 . The connecting partition wall 113 is disposed upstream (107a) of the discharge passage (107).

The connection partition wall 113 is formed to extend forward from the upstream 107a of the discharge passage 107 and is connected to the discharge partition wall 117 . The connecting partition wall 113 is inclined with respect to the front-rear center line C-C' of the handle 110 . The connecting partition wall 113 forms a wide upstream (107a) of the discharge passage (107).

The connecting partition wall 113 forms a wider upstream (107a) of the outlet (107) than the downstream (101b) of the inlet (101). The connecting partition wall 113 is inclinedly disposed.

The handle 110 includes a connecting partition 113 diagonally disposed so that the cross-sectional area of the discharge passage 107 decreases from the rear end (upstream) to the front end (downstream).

The handle 110 connects the discharge partition wall 117 and the inflow partition wall 111, and is inclined with respect to the front-rear center line (C-C') of the handle 110 to reduce the width of the discharge flow path 107 . It includes a connecting bulkhead 113 that linearly decreases from the rear (upstream) to the front (downstream). The connection partition wall 113 relieves the impact caused by the contaminated water 53 rapidly introduced from the suction pipe 170 . The connecting partition wall 113 reduces vibrations generated in the handle 110 .

The oral irrigator according to an embodiment of the present invention includes: a front channel 171 connected to a discharge passage 107; a rear channel 173 connected to the core suction unit 150; And the suction pipe including a bending (bending) channel 175 for connecting the rear channel 173 and the front channel 171 by being inclined with respect to the front-rear center line (C-C') of the handle 110, the suction pipe is disposed. (170). The inclined direction of the connecting partition wall 113 may be the same as the inclined direction of the bending channel 175 . The contaminated water 53 may collide with the inclined surface of the bending channel 175 and be concentrated to one side in the lateral direction.

When the suction pump starts or stops, a sudden change in the flow of the contaminated water 53 may cause a sudden change in pressure and flow rate, and a water shock phenomenon may occur. Since the pump sucks the air and the contaminated water 53 present in the oral cavity at the same time, the air and the contaminated water 53 flow in a mixed state in the discharge passage 107 and the suction pipe 170 . An environment in which air and contaminated water 53 flow together causes a water shock phenomenon inside the handle 110 . The connecting partition wall 113 reduces the vacuum generation part on the discharge passage 107 and gradually reduces the passage width of the contaminated water 53 to alleviate the water shock.

FIG. 8 is an enlarged view of the mouthpiece 130 of the oral irrigator 100 of FIG. 3 . Figure 9 is a representation of the portion of Figure 8 from the lower side.

8 to 9, in the oral irrigator 100 according to an embodiment of the present invention, the inflow passage 101 through which the washing water 51 flows, and the discharge through which the contaminated water 53 sucked from the oral cavity flows. a handle 110 having a flow path 107 formed therein; a mouthpiece 130 for spraying the washing water 51 supplied through the handle 110 into the oral cavity; and a core suction unit 150 that sucks the contaminated water 53 discharged from the mouthpiece 130 to wash the teeth, and whose edge is wrapped by the mouthpiece 130 . The core suction unit 150 sucks the contaminated water 53 . The suction pipe 170 is connected to the core suction unit 150 to suck the contaminated water 53 . The suction pipe 170 is connected to the handle 110 . The discharge passage 107 is connected to the suction pipe 170 .

The core suction unit 150 is fixed to the mouthpiece 130 . The core suction unit 150 is disposed on the center line C-C' of the mouthpiece 130 . The core suction unit 150 is disposed at the center of the mouthpiece 130 . The surface where the core suction unit 150 and the mouthpiece 130 are coupled is curved in a 'U' shape. The inside of the mouthpiece 130 is formed in a 'U' shape. The core suction unit 150 is formed in an approximately circular or oval shape and is coupled to the inner side of the mouthpiece 130 .

The mouthpiece 130 includes a labial surface corresponding portion 131 formed at a position facing the labial surface of the tooth, a buccal surface corresponding portion 133 formed at a position facing the buccal surface of the tooth, and the lingual surface of the tooth. (Lingual surface) and a lingual surface-corresponding portion 135 formed at a position facing, the core suction unit 150 is wrapped by the lingual surface-corresponding portion 135 is disposed on the user's tongue. The tongue response unit 135 protects weak epithelial cells in the oral cavity from the suction force of the core suction unit 150 .

The core suction unit 150 is disposed on the user's tongue. The core suction unit 150 is disposed in the center of the tongue. The inside of the oral cavity is made up of very thin epithelial cells. The tongue is the most powerful muscle inside the oral cavity. The core suction unit 150 sucks contaminated water from the tongue. Even if the tongue sticks to the core suction unit 150, the possibility of damage is low. Since the tongue has a plurality of lingual papillae, a plurality of air and/or contaminated water passages are formed between the core suction unit 150 and the tongue papillae.

The outer side of the mouthpiece 130 forms the labial-facing portion 131 and the buccal-compatible portion 133 , and the inner side of the mouthpiece 130 forms the lingual-facing portion 135 . The intermediate part 137, which will be described later, connects the tongue corresponding part 135 and the labial surface corresponding part 131 . The core suction unit 150 has a lower suction hole 159 formed at a position facing the tongue. The lower suction hole 159 is formed toward the tongue. The lower suction hole 159 is formed on the lower side of the core suction unit 150 . The core suction part 150 is formed with a suction induction part 153 protruding from the edge of the lower suction hole 159 to guide the contaminated water 53 to the lower suction hole 159 .

The suction induction part 153 prevents the tongue from blocking the lower suction hole 159 . The suction induction part 153 separates the lower suction hole 159 and the tongue. The suction induction unit 153 serves as a straw for sucking the contaminated water 53 present on the tongue. The suction induction unit 153 is submerged in the washing water 51 or forms a negative pressure at a distance close to the washing water 51 .

The lower suction hole 159 includes a first lower suction hole 159a and a second lower suction hole 159b formed at the rear of the first lower suction hole 159a, and is formed in the first lower suction hole 159a. The formed first suction guide portion 153a protrudes higher than the second suction guide portion 153b formed in the second lower suction hole 159b. The first suction induction part 153a formed in the first lower suction hole 159a is formed higher than the tongue corresponding part 135 . The first suction induction unit 153a prevents the user's tongue from coming into direct contact with the tongue counterpart 135 . The first suction induction unit 153a separates the user's tongue and the tongue corresponding to the user's tongue 135 .

Contaminated water 53 may flow between the user's tongue and the tongue counterpart 135 . The suction induction unit 153 is formed with a trough 151 through which the contaminated water 53 flows toward the front. The valley 151 is a gap formed so that the contaminated water 53 can be sucked even when the suction induction part 153 is in close contact with the tongue. The bone 151 may be formed in the front, that is, in the lip direction.

The core suction unit 150 has a 'U' shape at the edge of the lower suction hole 159 and includes a suction induction unit 153 protruding downward. The suction induction unit 153 is formed so that the protruding surface faces the front, and the depressed surface faces the rear, that is, the uvula. The suction induction unit 153 may be lowered in height step by step from the front to the rear, that is, from the mouth to the uvula. Considering 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 induction unit 153 is as close to the tongue as possible.

The core suction unit 150 has a shape protruding toward the front and recessed toward the rear, and includes a suction induction unit 153 formed at the edge of the lower suction hole 159 . The core suction unit 150 has a rear suction hole 157 formed at a position facing the uvula. The rear suction hole 157 is formed in the rear of the core suction unit 150 . The rear suction hole 157 sucks the contaminated water 53 near the uvula. The core suction unit 150 has an upper suction hole 155 formed at a position facing the roof of the mouth. The upper suction hole 155 is formed on the upper side of the core suction unit 150 . The upper suction hole 155 sucks the contaminated water 53 that falls after being sprayed toward the upper jaw.

The oral irrigator 100 according to an embodiment of the present invention has a handle 110 having an inlet passage 101 through which the washing water 51 flows and an outlet passage 107 through which the contaminated water 53 sucked from the oral cavity flows. )(handle); a mouthpiece 130 for spraying the washing water 51 supplied through the handle 110 into the oral cavity; and a core suction unit 150 connected to the mouthpiece 130 and sucking the contaminated water 53 discharged from the mouthpiece 130 to wash the teeth. In the core suction unit 150, the contaminated water 53 flows, and in the mouthpiece 130, the washing water 51 flows.

The mouthpiece 130 and the core suction unit 150 are isolated so that the washing water 51 and the contaminated water 53 do not mix. The core suction unit 150 is centered on the user's median sulcus of tongue. The core suction unit 150 is disposed on the user's dorsum of tongue. The lower end of the core suction unit 150 is formed at a position higher than the lower end of the mouthpiece 130 , and the upper end of the core suction unit 150 is formed lower than the upper end of the mouthpiece 130 .

The core suction unit 150 is disposed on the tongue, and has a lower height than the mouthpiece 130 . Accordingly, the probability that the user's tongue or the roof of the mouth comes into contact with the core suction unit 150 is reduced. The lateral circumference of the core suction unit 150 is connected to the mouthpiece 130 . The edge of the core suction unit 150 is connected to the tongue counterpart 135 , and the tongue counterpart 135 has a higher height than the core suction unit 150 . An upper suction hole 155 is formed on the upper side of the core suction unit 150 . The mouthpiece 130 surrounds the edge of the core suction unit 150 . The mouthpiece 130 prevents the core suction unit 150 from coming into contact with the user's cheeks (buccal). This structure protects the soft user's oral mucosa.

The core suction unit 150 has a lower suction hole 159 at a position facing the tongue, an upper suction hole 155 at a position facing the roof of the mouth, and a rear suction hole 157 at a position facing the uvula. The lower suction hole 159, the upper suction hole 155, and the rear suction hole 157 are formed in a line in the front-rear direction. The lower suction hole 159, the upper suction hole 155, and the rear suction hole 157 are concentrated in the center of the user's oral cavity, and these holes are spaced apart from the oral mucosa by a certain distance due to the mouthpiece 130. This prevents the oral mucosa from being sucked into these holes and blocking them. This structure maintains the suction function of the contaminated water 53 constant.

The mouthpiece 130, the front suction hole 139 is formed in the portion facing the chewing surface of the front teeth, the core suction unit 150, the lower suction hole 159 at the position facing the tongue, facing the roof of the mouth The upper suction hole 155 at the position where the uvula and the rear suction hole 157 are formed at the position facing the uvula, the front suction hole 139, the lower suction hole 159, the upper suction hole 155, the rear suction hole Reference numerals 157 are formed in a line on the front-rear center line C-C'.

The front suction hole 139 is formed in a position close to the lips. The front suction hole 139 sucks the contaminated water 53 near the lips. The front suction hole 139 is formed in the intermediate part 137 to be described later. The intermediate portion 137 is formed at a position in contact with the chewing surface of the front teeth. The front suction hole 139 may be formed on the upper side and/or the lower side of the mouthpiece 130 .

The oral irrigator 100 according to an embodiment of the present invention has a handle 110 having an inlet passage 101 through which the washing water 51 flows and an outlet passage 107 through which the contaminated water 53 sucked from the oral cavity flows. )(handle); The washing water 51 supplied through the handle 110 is sprayed into the oral cavity, and the labial surface corresponding portion 131 formed at a position facing the labial surface of the tooth and the position facing the buccal surface of the tooth a mouthpiece 130 forming a left lingual-facing part 135a and a right lingual-facing part 135b formed at a position facing the buccal surface 133 formed in the tooth and the lingual surface of the tooth; and a core suction unit that sucks the contaminated water 53 discharged from the mouthpiece 130 to wash the teeth, the left side is coupled with the left lingual coping part (135a) and the right side is coupled with the right lingual coping part (135b) ( 150).

The core suction part 150 is surrounded by the tongue-response part 135 . The core suction unit 150 is spaced apart from the user's oral mucosa. The rear end of the core suction unit 150 is disposed in front of the rear end of the buccal counteracting unit 133 . The rear end of the core suction unit 150 is disposed in front of the rear end of the tongue-contacting unit 135 . The rear end of the core suction unit 150 does not interfere with the uvula because the degree of protrusion is lower than that of the mouthpiece 130 .

10 is a perspective view of a suction pipe 170 according to an embodiment of the present invention. 11 is a plan view of a suction pipe 170 according to an embodiment of the present invention. 12 is a perspective view illustrating a shape in which the suction pipe 170 is coupled to the lower part 100a of FIG. 4 . 13 is a plan view illustrating a shape in which the suction pipe 170 is coupled to the lower part 100a of FIG. 6 . 14 is a perspective view illustrating a shape in which the suction pipe 170 is coupled to the upper part 100b of FIG. 7 .

10 to 14 , in the oral irrigator 100 according to an embodiment of the present invention, the inflow path 101 through which the washing water 51 flows and the discharge through which the contaminated water 53 sucked from the oral cavity flows. a handle 110 having a flow path 107 formed therein; a mouthpiece 130 connected to the inflow passage 101 and spraying the washing water 51 into the oral cavity; a core suction unit 150 for sucking the contaminated water 53 discharged from the mouthpiece 130 to wash the teeth; and a suction pipe 170 through which the contaminated water 53 flows and passes through the mouthpiece 130 to connect the core suction unit 150 and the handle 110 .

The suction pipe 170 passes through the mouthpiece 130 . The contaminated water 53 flows from the core suction unit 150 to the suction pipe 170 . The suction pipe 170 is connected to the discharge passage 107 . The suction pipe 170 passes through the mouthpiece 130 and is connected to the handle 110 . Washing water 51 flows inside the mouthpiece 130 . The suction pipe 170 separates the washing water 51 and the contaminated water 53 .

The mouthpiece 130 is a left labial surface-corresponding portion (131a) and a right labial-facing portion (131b) formed at a position facing the labial surface of the tooth and the left side formed at a position facing the buccal surface of the tooth. It includes a buccal-corresponding part 133a and a right buccal-corresponding part 133b, and a lingual-facing part 135 formed at a position facing the lingual surface of the tooth, and the suction pipe 170 includes the labial-facing part 131 ) and the tongue-responsive part 135 and is connected to the core suction part 150 . The core suction part 150 is surrounded by the tongue-response part 135 . The handle 110 is connected to the labial surface corresponding portion 131 . The suction pipe 170 passes through the mouthpiece 130 and is connected to the handle 110 . The suction pipe 170 includes a vertical channel 177 protruding in the longitudinal direction to form a flow gap 190 and 290 in the longitudinal direction with the mouthpiece 130 . Flow intervals 190 and 290 are shown in FIGS. 5 and 19 . The vertical channel 177 is formed at the upper end and/or lower end of the suction pipe 170 .

The mouthpiece 130 is formed at a position facing the chewing surface of the user's incisors to form a front suction hole 139 for sucking the contaminated water 53, and the vertical channel 177 is a front suction hole 139 ) to form a vertical flow path. The contaminated water 53 collected in the front tooth direction moves to the vertical channel 177 through the front suction hole 139 . The contaminated water 53 introduced into the suction pipe 170 through the vertical channel 177 flows to the handle 110 . The mouthpiece 130 includes a vertical protrusion 137a coupled to the vertical channel 177 to form flow intervals 190 and 290 .

The flow interval 190 forms a diffusion path 103 through which the washing water 51 flows across the suction pipe 170 . The mouthpiece 130 includes a vertical projection 137a protruding therein in the longitudinal direction to form the suction pipe 170 and the flow intervals 190 and 290 in the longitudinal direction. The vertical protrusion 137a and the vertical channel 177 are fastened. The vertical channel 177 and the vertical protrusion 137a form a space between the mouthpiece 130 and the suction pipe 170 . This space is the flow interval (190,290). The washing water 51 flows to the upper side and/or lower side of the suction pipe 170 through the flow intervals 190 and 290 . The washing water 51 flows in the opposite direction of the suction pipe 170 through the flow intervals 190 and 290 .

The suction pipe 170 includes a front channel 171 connected to the discharge passage 107 of the handle 110; and a rear channel 173 connected to the core suction unit 150 through the rear of the mouthpiece 130 .

The suction pipe 170 is detachably formed and disposed inside the diffusion passage 103 . The suction pipe 170 is disposed inclined with respect to the center line 173C of the rear channel 173 and the center line 171C of the front channel 171 , and connects the rear channel 173 and the front channel 171 . and a bending channel 175 to The bending channel 175 passes through the front of the mouthpiece 130 and is connected to the front channel 171 .

The rear channel 173 and the front channel 171 are formed so that center lines are parallel to each other. The inflow passage 101 is formed on one side of the handle 110 , the discharge passage 107 is formed on the other side of the handle 110 , and the core suction unit 150 is located on the center line C-C' of the handle 110 . ), the suction pipe 170 has a rear channel 173 connected to the core suction unit 150; and a front channel 171 connected to the discharge passage 107 .

The oral irrigator 100 according to an embodiment of the present invention includes a suction pipe 170 connecting the core suction unit 150 and the discharge passage 107 .

The suction pipe 170 includes a bending channel 175 that is disposed at an angle inclined to the center line C-C' of the handle 110 and connects between the rear channel 173 and the front channel 171 . The bending channel 175 bends the path of the contaminated water 53 .

Since the core suction unit 150 is disposed on the center line C-C' of the handle 110 and the discharge flow path 107 is disposed on one side of the handle 110, the path of the contaminated water 53 may be bent. There is a need for means The front channel 171 is formed parallel to the flow direction of the discharge passage 107 . Contaminated water 53 flows in the inside of the suction pipe 170, the washing water 51 flows outside the suction pipe 170, and the washing water 51 is applied to the outer peripheral surface of the suction pipe 170 in different directions. A dividing flow guide 179 is disposed. A diffusion passage 103 is formed at the connection point between the handle 110 and the mouthpiece 130 .

A front channel 171 and a bending channel 175 may be disposed in the diffusion passage 103 . The flow guide 179 may protrude in the vertical direction to form flow intervals 190 and 290 . The flow guide 179 separates the suction pipe 170 from the mouthpiece 130 .

The flow intervals 190 and 290 are spaces between the mouthpiece 130 and the suction pipe 170 . The flow path guide 179 is disposed in the diffusion path 103 . Although the drawings represent that the flow guide 179 and the suction pipe 170 are integrally formed, the flow guide 179 may be formed on the handle 110 . The suction pipe 170 includes a flow path guide 179 for dividing the inflow path 101 to flow the washing water 51 in different directions.

The washing water 51 introduced from one side of the handle 110 flows toward the other side of the handle 110 along the flow guide 179 . When the inflow passage 101 is formed on the left side of the handle 110 , the washing water 51 discharged from the left side of the handle 110 is directed toward the left buccal surface corresponding portion 133a and the left lingual surface corresponding portion 135a. The flow path guide 179 is obliquely disposed at the rear of the inflow path 101 so that a part of the washing water 51 is directed toward the right labial surface corresponding portion 131b. The flow path guide 179 is obliquely disposed at the rear of the inflow path 101 so that a part of the washing water 51 is directed toward the right buccal corresponding portion 133b.

The oral irrigator 100 according to an embodiment of the present invention has a handle 110 having an inlet passage 101 through which the washing water 51 flows and an outlet passage 107 through which the contaminated water 53 sucked from the oral cavity flows. )(handle); a mouthpiece 130 connected to the inflow passage 101 and spraying the washing water 51 into the oral cavity; a core suction unit 150 for sucking the contaminated water 53 discharged from the mouthpiece 130 to wash the teeth; And inside, a concentrated flow path 105 through which the contaminated water 53 flows is formed, and on the outside, between the mouthpiece 130 and the mouthpiece 130, flow intervals 190 and 290 through which the washing water 51 flows are formed, and the core suction unit ( 150 ) and a suction pipe 170 connecting the handle 110 .

The suction pipe 170 includes a vertical channel 177 protruding in the longitudinal direction to form a flow gap 190 and 290 in the longitudinal direction with the mouthpiece 130 . The mouthpiece 130 includes a vertical protrusion 137a coupled to the vertical channel 177 to form flow intervals 190 and 290 . The flow intervals 190 and 290 form a diffusion path 103 through which the washing water 51 flows across the suction pipe 170 . The mouthpiece 130 includes a vertical projection 137a protruding therein in the longitudinal direction to form the suction pipe 170 and the flow intervals 190 and 290 in the longitudinal direction.

The suction pipe 170 is disposed in the diffusion passage 103 . Contaminated water 53 flows inside the suction pipe 170 . Washing water 51 flows outside the suction pipe 170 . Flow intervals 190 and 290 are formed between the suction pipe 170 and the upper end and/or lower end of the mouthpiece 130 . The washing water 51 flows in the opposite direction of the suction pipe 170 through the flow intervals 190 and 290 .

The vertical protrusion 137a and the vertical channel 177 form flow intervals 190 and 290 . The vertical protrusion 137a and the vertical channel 177 may be coupled to each other to form flow intervals 190 and 290 . The vertical protrusion 137a may be formed on the edge of the front suction hole 139 to connect the front suction hole 139 and the vertical channel 177 .

Referring back to FIGS. 8 and 9 , the oral irrigator 100 according to an embodiment of the present invention includes a handle 110 having an inflow passage 101 through which the washing water 51 flows; and a mouthpiece 130 having an injection hole 130a for spraying the washing water 51 into the oral cavity, wherein the mouthpiece 130 is a labial surface corresponding portion formed at a position facing the labial surface of the tooth. (131); It is connected to the labial surface corresponding portion 131, the buccal surface of the tooth and the buccal surface formed in a position facing the corresponding portion (133); The lingual surface of the tooth (lingual surface) and formed in a position facing the corresponding lingual surface portion 135; and an intermediate part 137 (intermediation) whose both ends start at the connection point of the labial surface-corresponding part 131 and the lingual surface-compatible part 135 and connect the labial surface-compatible part 131 and the lingual surface-compatible part 135 .

The intermediate part 137 connects the rear surface of the labial surface-corresponding part 131 and the front surface of the tongue-facing part 135 . The front of the intermediate part 137 is connected to the labial surface corresponding part 131 . The rear of the intermediate part 137 is connected to the tongue corresponding part 135 . The left end of the intermediate part 137 is connected to the boundary between the left labial counterpart 131a and the left buccal counterpart 133a. The right end of the intermediate part 137 is connected to the boundary between the right labial counterpart 131b and the right buccal counterpart 133b. In front of the intermediate portion 137, the tongue-facing portion 135 is formed, and behind the intermediate portion 137, the labial surface-compatible portion 131 is formed. The mediator 137 sucks the contaminated water 53 distributed around the front teeth.

The mouthpiece 130 is connected to the labial counterpart 131, and includes a buccal counterpart 133 formed at a position facing the buccal surface of the tooth, and includes a tongue counterpart 135 and a buccal surface. In the space between (133), a first contraction-allowing hole (132a) is formed so that all chewing surfaces of teeth 1, 2, 3 and 4 form an empty space, and chewing teeth of teeth 13, 14, 15, and 16 are formed. A second shrinkage allowing hole 132b is formed so that all areas of the surface form an empty space.

The first shrinkage allowable hole 132a and the second shrinkage allowable hole 132b are each formed as a single hole. The first shrinkage permissible hole 132a and the second shrinkage permissible hole 132b form a boundary with the intermediate portion 137, the lingual surface corresponding portion 135, and the buccal surface corresponding portion 133, and the buccal surface corresponding portion 133. The rear end of the , forms the free end.

An outer injection flow path 134a is formed in the labial surface corresponding portion 131 and the buccal surface corresponding portion 133 , an inner injection passage 134b is formed in the tongue corresponding portion 135 , and an outer injection passage is formed in the intermediate portion 137 . A diffusion passage 103 connecting the 134a and the inner injection passage 134b is formed. The diffusion passage 103 is formed at the connection point between the handle 110 and the mouthpiece 130 and the intermediate portion 137 . The washing water 51 flowing into the diffusion passage 103 is distributed to all points of the mouthpiece 130 . The diffusion passage 103 connects the handle 110 , the labial surface corresponding part 131 , the lingual surface corresponding part 135 and the buccal surface corresponding part 133 . One end of the buccal corresponding portion 133 is fixed to the labial counterpart 131, and the other end is formed as a free end. The side end portion 137b of the intermediate portion 137 has a shape in which the buccal-facing portion 133 is depressed in the center direction to enable elastic movement in the labial-facing portion 131 direction. The side end portion 137b of the intermediate portion 137 is curved in a 'C' shape so that the buccal surface corresponding portion 133 can elastically move in the labial surface corresponding portion 131 direction. One end of the buccal counterpart 133 is fixed by the labial counterpart 131 . The other end of the buccal corresponding portion 133 is a free end. The left end of the intermediate unit 137 and the right end of the intermediate unit 137 are curved toward the handle 110 . The left end of the intermediate portion 137 and the right end of the intermediate portion 137 facilitate elastic movement of the buccal corresponding portion 133 . The other end of the buccal corresponding portion 133 may be freely vibrated or bent. The buccal counterpart 133 may vibrate due to the kinetic energy of the washing water 51 .

The injection hole 130a is formed in a direction toward the cervical part (cervix) between the crown and the gum (gum). The injection hole 130a sprays the washing water 51 at an angle of 30 degrees to 65 degrees. The injection hole 130a may be formed to spray the washing water 51 at an angle of 45 degrees. The injection hole 130a sprays the washing water 51 to the cervical region. The buccal response unit 133 may vibrate to spray the washing water 51 around the cervical region. The washing water 51 sprays the washing water 51 to the crown and gums around the cervical region. Washing water 51 improves blood flow by massaging the gums without injuring the gums. The mouthpiece 130 is cleaned between the crown and the gum in a state spaced apart from the cervical region.

15 shows an example in which the oral irrigator 100 according to an embodiment of the present invention is bitten by a tooth using a tooth model.

15 and again referring to FIGS. 4 to 9 , the oral irrigator 100 according to an embodiment of the present invention includes a handle 110 in which an inflow passage 101 through which the washing water 51 flows is formed; and a mouthpiece 130 having an injection hole 130a for spraying the washing water 51 into the oral cavity, wherein the mouthpiece 130 is a labial surface corresponding portion formed at a position facing the labial surface of the tooth. (131); The buccal corresponding portion 133 is connected to the labial counterpart 131 and formed at a position facing the buccal surface of the tooth; The lingual surface of the tooth (lingual surface) and formed in a position facing the corresponding lingual surface portion 135; and an intermediate portion 137 (intermediation) formed at a position where teeth 7, 8, 9, and 10 are bitten to connect the labial surface corresponding portion 131 and the lingual surface corresponding portion 135 .

The intermediate portion 137 is formed at a position facing the chewing surface of the front teeth. The intermediate portion 137 is formed at a position facing the chewing surface of the user's front teeth to form a front suction hole 139 for sucking the contaminated water 53 existing in the oral cavity. The intermediate portion 137 is bitten by teeth 7, 8, 9, 10 or teeth 6, 7, 8, 9, 10, 11. Washing water 51 flows between the front teeth. The diffusion passage 103 is formed between the front teeth. The suction pipe 170 is disposed between the front teeth. The contaminated water 53 flows between the front teeth. The front suction hole 139 is connected to the suction pipe 170, and the front suction hole 139 is formed in a portion facing the front teeth. The front suction hole 139 facing the chewing surface of the front teeth forms a strong negative pressure. The front suction hole 139 improves the cleaning power by increasing the flow rate around the front teeth.

The oral irrigator 100 according to an embodiment of the present invention includes a handle 110 in which an inflow passage 101 through which the washing water 51 flows is formed; and a mouthpiece 130 having an injection hole 130a for spraying the washing water 51 into the oral cavity, wherein the mouthpiece 130 is a labial surface corresponding portion formed at a position facing the labial surface of the tooth. (131); It is connected to the labial surface corresponding portion 131, the buccal surface of the tooth and the buccal surface formed in a position facing the corresponding portion (133); The lingual surface of the tooth (lingual surface) and formed in a position facing the corresponding lingual surface portion 135; And it is formed at the position where the user's anterior teeth are bitten and includes an intermediate portion 137 (intermediation) for connecting the labial surface corresponding portion 131 and the lingual surface corresponding portion 135 .

The intermediate portion 137 is formed outside the position where the teeth 1, 2, 3, 4, 12, 13, 14, 15, and 16 are bitten, and the buccal corresponding portion 133 forms a free end. The intermediate part 137 is bitten by teeth 7, 8, 9, and 10. The buccal surface corresponding portion 133 may be elastically moved in the tongue surface corresponding portion 135 direction.

The oral irrigator 100 according to an embodiment of the present invention includes: a core suction unit 150 disposed on the user's tongue and connected to the labial counterpart 131, for sucking the contaminated water 53 inside the oral cavity; and a suction pipe 170 disposed inside the intermediate unit 137 and forming a concentration flow path 105 through which the contaminated water 53 sucked in the core suction unit 150 flows.

The concentration flow path 105 is formed inside the suction pipe 170 . In the concentration flow path 105 , the contaminated water 53 introduced from the core suction unit 150 and the contaminated water 53 introduced through the vertical channel 177 flow together. The suction pipe 170 includes a vertical channel 177 protruding in the longitudinal direction to form a flow gap 190 and 290 in the longitudinal direction with the mouthpiece 130 . The flow intervals 190 and 290 form a diffusion path 103 through which the washing water 51 flows between the suction pipe 170 and the mouthpiece 130 .

16A is a view illustrating the flow of washing water and contaminated water when used according to FIG. 15 . Figure 16b is a representation of the portion of the hand in close contact with the mouthguard when used according to Figure 15.

16A, 16B and again referring to FIGS. 12 to 15 , the oral irrigator according to an embodiment of the present invention includes a mouthpiece 130 for spraying washing water 51 into the oral cavity; a core suction unit 150 for sucking the contaminated water 53 in which the washing water 51 and saliva are mixed in the oral cavity; and a handle 110 forming an inflow path 101 through which the washing water 51 flows, and a discharge path 107 through which the contaminated water 53 discharged from the core suction unit 150 flows, and the handle 110 ) is formed on the outer circumferential surface and includes a mouthguard 119 having an end curved rearward.

The mouth guard 119 is bent in a bow shape so that one side in the lateral direction is in close contact with the adductor pollicis muscle, and the other side in the lateral direction is in close contact with the proximal phalanx of the thumb. The mouthguard 119 has an elliptical shape in which each of the transverse ends is bent backward. The contaminated water 53 that the core suction unit 150 has not sucked may be sprayed out of the mouth. The mouth guard 119 is disposed between the user's mouth and the hand to prevent scattering of the contaminated water 53 . The mouth guard 119 prevents contact between the mouth and the hand. When the user grips the handle 110 , the mouth guard 119 expands the contact area with the side of the fist. The mouth guard 119 allows the user to stably grip the handle 110 .

The handle 110 includes a mouthguard 119 that is formed on the outer peripheral surface and has a lateral end curved rearward. The handle 110 includes an oval mouthguard 119 protruding along the outer circumferential surface. The mouth guard 119 is formed on the outer peripheral surface of the handle 110 . The mouth guard 119 is curved in the direction of the mouthpiece 130 to increase the contact range with the hand when the user holds the handle 110 . The mouth guard 119 allows the user to stably hold the handle 110 by hand. The mouth guard 119 prevents contact between the hand and the lips. The mouth guard 119 prevents the washing water 51 coming out of the mouth from being sprayed forward. A mouth guard 119 is formed on the handle 110 so that the user can easily recognize the position to be gripped. The mouthguard 119 is in close contact with the side of the user's fist.

The mouth guard 119 is gently curved toward the user's lips. This shape prevents the user's mouth and hand from coming into contact. The mouth guard 119 prevents bacteria from entering the mouth through the hands. The mouth guard 119 is disposed in front of the mouth, and prevents scattering of the contaminated water 53 discharged into the mouth without inhalation.

The washing water 51 discharged from the body flows into the handle 110 . The washing water 51 flows into the upstream 101a of the inflow passage 101 . The washing water 51 is directed to the downstream 101b of the inflow passage 101 . Since the inflow passage 101 is formed on one side (left side in the drawing) of the handle 110 , the washing water 51 is discharged toward one side (left side in the drawing) of the mouthpiece 130 . A diffusion passage 103 is formed downstream 101b of the inflow passage 101 .

The washing water 51 enters the diffusion passage 103 and is then distributed to all passages of the mouthpiece 130 . A portion of the washing water 51 is directed to the left side of the mouthpiece 130 . Another portion of the washing water 51 is directed to the right side of the mouthpiece 130 . A suction pipe 170 is disposed in the diffusion passage 103 . Flow intervals 190 and 290 are formed between the suction pipe 170 and the mouthpiece 130 . The washing water 51 flows to the right side of the mouthpiece 130 through the flow intervals 190 and 290 .

A flow guide 179 may be disposed on the handle 110 or the suction pipe 170 . The flow guide 179 divides the washing water 51 into two directions. Accordingly, the washing water 51 introduced from the left side of the handle 110 may flow to the right end of the mouthpiece 130 . The structure as described above reduces the flow resistance while simultaneously performing suction and discharge to uniformly and smoothly spread the washing water 51 .

The washing water 51 flows to the labial surface corresponding portion 131 , the lingual surface corresponding portion 135 , and the buccal surface corresponding portion 133 . Washing water 51 is injected into the oral cavity through the injection hole (130a). Washing water 51 is sprayed toward the cervical region. The buccal corresponding portion 133 is connected to the labial counterpart 131 like a cantilever on one side, and the other side is formed as a free end. The side end portion 137b of the intermediate portion 137 is curved in a 'C' shape so that the buccal surface corresponding portion 133 can elastically move in the labial surface corresponding portion 131 direction. The kinetic energy of the washing water 51 vibrates the buccal counterpart 133 . Therefore, the buccal surface corresponding portion 133 elastically moves. Vibration of the buccal counter part 133 slightly changes the injection direction. That is, the jetting target of the washing water 51 is slightly changed.

The washing water 51 may stimulate all of the cervical region, the crown, the gums, and the like. Changing the injection direction of the washing water 51 not only removes foreign substances caught between teeth, but also massages the gums. Gum massage strengthens the gum tissue and improves blood circulation, thereby increasing the immunity of the gums. The gum massage using the washing water 51 does not cause a wound on the gums.

The washing water 51 injected into the oral cavity is mixed with saliva and foreign substances to become the contaminated water 53 . The oral irrigator 100 should quickly inhale the contaminated water 53 . When the contaminated water 53 is excessively present in the oral cavity, the contaminated water 53 interferes with the injection of the washing water 51 . In addition, when the contaminated water 53 is excessive, the contaminated water 53 may flow into the airway or esophagus. Therefore, it is necessary to quickly remove the contaminated water 53 .

The oral irrigator 100 according to the present invention sucks the contaminated water 53 from the core suction unit 150 and the front suction hole 139 . When the user bows his head slightly, the contaminated water 53 may collect in the vicinity of the anterior teeth. The front suction hole 139 sucks the contaminated water 53 in the vicinity of the anterior teeth. The front suction hole 139 may be formed on both the upper side and the lower side of the intermediate part 137 , but when it is formed on the lower side, there is a fear that the contaminated water 53 sucked from the core suction unit 150 may be discharged. Therefore, the front suction hole 139 is preferably formed on the upper side of the intermediate portion (137). Due to the shape of the intermediate portion 137 , an empty space is formed between the buccal surface corresponding portion 133 and the lingual surface corresponding portion 135 . The empty space allows the contaminated water 53 to easily collect downwards. The polluted water 53 collected below flows to the lower suction hole 159 through the suction induction part 153 . The suction induction part 153 includes a first suction induction part 153a and a second suction induction part 153b. The first suction induction part 153a has a higher height (protrusion degree) than the tongue corresponding part 135 . The tongue is in contact with the first suction inducing part (153a), and the tongue does not come into direct contact with the tongue corresponding part (135). Contaminated water 53 may flow through the gap between the tongue and the tongue counterpart 135 , and the contaminated water 53 may flow to the first suction induction unit 153a. Since the bone 151 is formed in the suction induction part 153, the suction induction part 153 is not blocked by the tongue. The second suction induction part 153b has a lower height than the first suction induction part 153a. The tongue does not block the second suction induction part 153b. The first suction inducing part 153a formed in the front prevents contact between the tongue and the tongue corresponding part 135 and prevents contact between the tongue and the second suction induction part 153b. The suction induction part 153 is formed in a 'U' shape. This shape increases the contact area with the contaminated water 53 moving along the midlingual sulcus formed in the center of the tongue.

The upper suction hole 155 is disposed in a direction toward the roof of the mouth to suck the contaminated water 53 . Since the contaminated water 53 continues to scatter in the oral cavity, the contaminated water 53 also exists on the upper side.

The height of the core suction part 150 is lower than that of the tongue counterpart 135 . In addition, the core suction unit 150 is surrounded by the tongue corresponding portion 135 . The snow surface counteracting part 135 functions as a wall for confining the contaminated water 53 . That is, the contaminated water 53 is trapped by the tongue-response part 135 and the upper suction hole 155 sucks the contaminated water 53 .

The edge of the core suction unit 150 is surrounded by the mouthpiece 130 . Therefore, the core suction unit 150 is in direct contact with the oral mucosa to prevent damage to the soft oral mucosa. The rear suction hole 157 sucks the contaminated water 53 that exists in the vicinity of the uvula or the contaminated water 53 that is going to pass into the airway or esophagus through the uvula. The contaminated water 53 sucked in from the core suction unit 150 flows into the suction pipe 170 . The contaminated water 53 introduced through the front suction hole 139 flows into the suction pipe 170 .

A concentration flow path 105 is formed inside the suction pipe 170 . The concentration flow path 105 is connected to the discharge flow path 107 . The suction pipe 170 has a vertical channel 177 is formed, and the mouthpiece 130 has a vertical protrusion 137a. The vertical channel 177 and the vertical protrusion 137a are coupled to each other to form flow intervals 190 and 290 . The flow intervals 190 and 290 are gaps forming the diffusion passage 103 . The flow intervals 190 and 290 minimize the flow obstruction of the washing water 51 even though the suction pipe 170 is disposed in the center, and can form the diffusion flow path 103 .

The discharge flow path 107 is formed on one side (right side in the drawing) of the handle 110 , and the core suction unit 150 is disposed at the central portion. The suction pipe 170 needs a bending section. The bending channel 175 forms a curved portion of the concentration flow path 105 . The bending channel 175 is disposed on a curved portion of the suction pipe 170 . The curved portion causes the contaminated water 53 to be biased to one side. The curved portion on the flow path may form a vacuum portion. The bending of the flow path and the vacuum forming part increase the water impact phenomenon and the flow resistance. In the upstream 107a of the discharge passage 107, there is a portion in which the discharge passage 107 is temporarily widened. Although the inlet bulkhead 111 and the discharge bulkhead 117 are disposed to be spaced apart, the inclined connecting bulkhead 113 connects the inlet bulkhead 111 and the discharge bulkhead 117 . The connecting partition wall 113 temporarily widens the width of the discharge passage 107 . The upstream 107a of the discharge flow path 107 is a space for alleviating the water shock phenomenon caused by the contaminated water 53 discharged from the suction pipe 170 . The upstream 107a of the discharge passage 107 is a space for reducing the flow resistance of the contaminated water 53 . The contaminated water 53 is discharged to the outside through the downstream 107b of the discharge passage 107 . The contaminated water 53 may be stored in the body.

17 is a perspective view of an oral irrigator according to another embodiment of the present invention. 18 is an exploded perspective view of an oral irrigator according to another embodiment of the present invention. 19 is a perspective view of the lower portion 200a of the oral irrigator according to another embodiment of the present invention.

17 to 19 , the oral irrigator 200 according to an embodiment of the present invention includes a handle 210 having an inlet flow path 201 through which the washing water 51 flows; and a mouthpiece 230 connected to the inflow passage 201 and formed with a plurality of injection holes 230a for spraying the washing water 51 into the oral cavity.

The oral irrigator 200 includes an upper portion 200b and a lower portion 200a. A suction pipe 270 is disposed between the upper portion 200b and the lower portion 200a.

The washing water 51 flows into the upstream 201a of the inflow passage 201 and then flows to the mouthpiece 230 through the downstream 201b and diffusion passages 203 of the inflow passage 201 . The washing water 51 flows through the upper and lower sides of the suction pipe 270 .

A core suction unit 250 is disposed at the center of the mouthpiece 230 . The contaminated water 53 introduced through the core suction unit 250 is discharged to the handle 210 through the suction pipe 270 . The contaminated water 53 flows from the upstream 207a of the discharge passage 207 to the downstream 207b of the discharge passage 207 . The contaminated water 53 is discharged to the body or the outside and discarded.

20 is a perspective view of the upper portion 200b of the oral irrigator according to another embodiment of the present invention. 21 is a perspective view in which the suction pipe 270 is coupled to the upper portion 200b of the oral irrigator according to another embodiment of the present invention. Fig. 22 is a cross-sectional view 22-22 of Fig. 17; 23 shows the flow of the washing water 51 in FIG. 22 .

20 to 23 , the oral irrigator 200 according to an embodiment of the present invention includes a handle 210 having an inflow passage 201 through which the washing water 51 flows; and a mouthpiece 230 connected to the inflow passage 201 and provided with a plurality of injection holes 230a for spraying the washing water 51 into the oral cavity, and a plurality of injection holes 230a inside the mouthpiece 230 ) between the water stopper 236 (water stopper) is formed.

The washing water 51 flows to the mouthpiece 230 . The washing water 51 is partially reversed by the water stopper 236 . A plurality of warper stoppers are formed, and a portion of the backwashing water 51 is discharged to the outside through the injection hole 230a, and a portion is trapped between the water stoppers 236 and circulates. A plurality of water stoppers 236 are formed, and between the plurality of water stoppers 236, a spray groove 230b through which the washing water 51 flows in the direction of the spray hole 230a is formed.

A plurality of water stoppers 236 are formed, and between the plurality of water stoppers 236, a spray groove 230b through which the washing water 51 flows in the direction of the spray hole 230a is formed. Spray grooves 230b are formed between the water stoppers 236 . The injection grooves 230b are separately formed for each injection hole 230a. The washing water 51 trapped between the water stoppers 236 flows to the injection hole 230a through the injection groove 230b. A plurality of water stoppers 236 are formed, and a reservoir 236b for storing the flowing washing water 51 is formed between the plurality of water stoppers 236 . The water stopper 236 is disposed along the flow direction of the washing water 51 to form a reservoir 236b that induces a portion of the washing water 51 to flow back.

The plurality of reservoirs 236b may gradually increase in volume toward the rear. The reservoir 236b (reservior) stores the washing water 51 . A part of the washing water 51 flowing into the reservoir 236b is discharged to the injection hole 230a, a part circulates inside the reservoir 236b, and a part is discharged to the outside and flows to another reservoir 236b. The water stopper 236 is formed to be elongated in the vertical direction, and a flow hole 236a through which the washing water 51 flows is formed in the center. The water stopper 236 is disposed perpendicular to the flow direction of the washing water 51 .

The oral irrigator 200 according to an embodiment of the present invention includes a handle 210 (handle) having an inlet flow path 201 through which the washing water 51 flows; and a reservoir 236b connected to the inflow passage 201 to store the washing water 51 is formed, and the reservoir 236b has a mouthpiece 230 having a jetting hole 230a for spraying the washing water 51 into the oral cavity. ) is included.

In the reservoir 236b, a spray groove 230b for guiding the washing water 51 in the direction of the spray hole 230a is formed. A plurality of reservoirs 236b are formed, and a water stopper 236 is formed between the reservoirs 236b. At least one injection groove 230b and at least one injection hole 230a are formed in the reservoir 236b. The water stopper 236 is formed with a flow hole 236a through which the washing water 51 exceeding the storage capacity of the reservoir 236b flows to another reservoir 236b. A plurality of water stoppers 236 are formed inside the mouthpiece 230 , and a plurality of reservoirs 236b and a plurality of flow holes 236a are formed. The washing water 51 exceeding the capacity of the reservoir 236b flows to the other reservoir 236b through the flow hole 236a.

The oral irrigator 200 according to an embodiment of the present invention includes a handle 210 (handle) having an inlet flow path 201 through which the washing water 51 flows; and a plurality of water stoppers 236 disposed along the flow direction of the washing water 51 supplied from the inflow passage 201 to form a plurality of reservoirs 236b therein, and the washing water ( 51) includes a mouthpiece 230 having at least one injection hole 230a for spraying the inside of the oral cavity.

The reservoir 236b is formed in plurality along the flow direction of the washing water 51 . A plurality of water stoppers 236 are formed along the flow direction of the washing water 51 . The water stopper 236 is vertically formed to circulate the introduced washing water 51 in the vertical direction.

24 is a plan view of the lower portion 200a of the oral irrigator according to another embodiment of the present invention. 25 is a plan view of the upper portion 200b of the oral irrigator according to another embodiment of the present invention. FIG. 26 is an enlarged view of the mouthpiece 230 of FIG. 17 . Fig. 27 is a view showing the mouthpiece 230 of Fig. 26 in the downward direction.

24 to 27 , in the oral irrigator 200 according to an embodiment of the present invention, the inflow path 201 through which the washing water 51 flows, and the discharge through which the contaminated water 53 sucked from the oral cavity flows. a handle 210 having a flow path 207 formed thereon; a mouthpiece 230 connected to the inflow passage 201 and spraying the washing water 51 into the oral cavity; a core suction unit 250 for sucking the contaminated water 53 discharged from the mouthpiece 230 to wash the teeth; and a suction pipe 270 connecting the core suction unit 250 and the handle 210 , and the inside of the core suction unit 250 is disposed in front of the suction pipe 270 to divide the suctioned contaminated water 53 . A water splitter 256a, 256b (splitter) is formed.

The core suction unit 250 has a rear suction hole 257 formed at a position facing the uvula, and the water splitters 256a and 256b are disposed between the rear suction hole 257 and the suction pipe 270 .

Mouthpiece 230, the front suction hole 239 is formed in the portion facing the chewing surface of the front teeth of the upper teeth. The washing water 51 is sprayed in the mouthpiece 230 and the oral cavity. The core suction unit 250 sucks the contaminated water 53 in the oral cavity. The washing water 51 sprayed by the mouthpiece 230 is mixed with the contaminants and saliva in the oral cavity to become the contaminated water 53 . The contaminated water 53 is sucked through the core suction unit 250 . The contaminated water 53 is sucked through the front suction hole 239 disposed in the intermediate part 237 .

In the oral irrigator 200 according to an embodiment of the present invention, the handle 210 is formed with an inflow path 201 through which the washing water 51 flows and an outlet path 207 through which the contaminated water 53 sucked from the oral cavity flows. )(handle); a mouthpiece 230 connected to the inflow passage 201 and spraying the washing water 51 into the oral cavity; a core suction unit 250 for sucking the contaminated water 53 discharged from the mouthpiece 230 to wash the teeth; and a suction pipe 270 connecting the core suction unit 250 and the handle 210 , and is disposed in the lateral direction of the suction pipe 270 inside the mouthpiece 230 to prevent collision with the washing water 51 . A damper 238 is formed.

Mouthpiece 230, the labial surface of the tooth (labial surface) and a corresponding labial surface formed in a position facing the portion (231); The buccal corresponding portion 233 is connected to the labial surface corresponding portion 231 and formed at a position facing the buccal surface of the tooth; A lingual response portion 235 formed in a position facing the lingual surface of the tooth; And both ends start at the connection point of the labial counterpart 231 and the lingual counterpart 235, and include an intermediate 237 (intermediation) connecting the labial counterpart 231 and the lingual counterpart 235, The damper 238 is disposed on the intermediate portion 237 .

The washing water 51 introduced through the inflow passage 201 flows into the diffusion passage 203 . The suction pipe 270 is disposed on the intermediate part 237 . The suction pipe 270 is disposed in the diffusion passage 203 . The washing water 51 collides with the suction pipe 270 disposed in the diffusion passage 203 . The damper prevents a direct collision between the suction pipe 270 and the washing water 51 . The damper prevents the washing water 51 from directly colliding with the side surface of the suction pipe 270 . The damper suppresses the vibration of the suction pipe 270 inside the mouthpiece 230 .

The mouthpiece 230 has a front suction hole 239 formed in a portion facing the chewing surface of the upper teeth, and the edge of the front suction hole 239 protrudes inwardly to form a gap with the suction pipe 270 A vertical protrusion 237a is formed. A diffusion passage 203 is formed between the upper and lower surfaces of the mouthpiece 230 and the suction pipe 270 . The vertical protrusion 237a forms a gap between the mouthpiece 230 and the suction pipe 270 .

28 is a perspective view of a suction pipe 270 according to another embodiment of the present invention. 29 is a plan view of the suction pipe 270 of FIG. 30 is a bottom view of the suction pipe 270 of FIG.

28 to 30 , the suction pipe 270 includes a front channel 271 connected to the discharge passage 207 of the handle 210; a rear channel 273 connected to the core suction unit 250; and a bending (bending) channel 275 for connecting the rear channel 273 and the front channel 271 by being inclined with respect to the center line 273c of the rear channel and the center line 271C of the front channel. .

The suction pipe 270 has a vertical channel communicating with the front suction hole 239 on the upper side of the rear channel 273 is formed. In the suction pipe 270 , a vertical bar 288 is formed on the lower side of the rear channel 273 to form flow intervals 190 and 290 through which the washing water 51 flows between the mouthpiece 230 and the mouthpiece 230 .

Figure 31 shows the flow of the contaminated water 53 due to the suction pipe 270 and the water diffuser 216. Figure 32 shows the flow of the contaminated water 53 in a part of Figure 24. FIG. 33 shows the flow of the contaminated water 53 in a part of FIG. 25 .

31 to 33 , the contaminated water 53 is sucked at a plurality of positions such as the lower suction hole 259 and the rear suction hole 257 and flows to the core suction unit 250 . The water splitters 256a and 256b are disposed in the core suction unit 250 . The water splitters 256a and 256b divide the contaminated water 53 introduced through the rear suction hole 257 . The water splitters 256a and 256b divide the washing water 51 flowing into the suction pipe 270 . The water splitters 256a and 256b increase the flow rate of the contaminated water 53 flowing through the suction pipe 270 . The water splitters 256a and 256b allow the internal pressure of the suction pipe 270 to be lower than that of the core suction unit 250 . The core suction unit 250 has a lower suction hole 259 formed at a position facing the tongue, and the water splitters 256a and 256b are disposed at a position to divide the lower suction hole 259 .

The water splitters 256a and 256b may be vertically divided. The upper splitters 256a and 256ba are formed on the upper portion 200b, and the lower splitters 256a and 256bb are formed on the lower portion 200a. The water splitters 256a and 256b divide the contaminated water 53 introduced through the lower suction hole 259 . The water splitters 256a and 256b align the flow direction of the contaminated water 53 to increase the flow rate of the contaminated water 53 . The water splitters 256a and 256b are respectively formed of upper splitters 256a and 256ba and lower splitters 256a and 256bb and coupled to each other, and the lower splitters 256a and 256bb are disposed in the lower suction hole 259 .

In the oral irrigator 200 according to an embodiment of the present invention, the handle 210 is formed with an inflow path 201 through which the washing water 51 flows and an outlet path 207 through which the contaminated water 53 sucked from the oral cavity flows. )(handle); a mouthpiece 230 connected to the inflow passage 201 and spraying the washing water 51 into the oral cavity; a core suction unit 250 for sucking the contaminated water 53 discharged from the mouthpiece 230 to wash the teeth; and a suction pipe 270 connecting the core suction unit 250 and the handle 210, and dividing the contaminated water 53 discharged from the suction pipe 270 inside the mouthpiece 230 into a discharge flow path ( A water diffuser 216 that supplies to 207 is disposed.

In the suction pipe 270 , the contaminated water 53 sucked from the core suction unit 250 and the contaminated water 53 sucked from the front suction hole 239 flow. Contaminated water 53 introduced from different directions collides with each other.

The water diffuser 216 divides the contaminated water 53 discharged from the suction pipe 270 . The water diffuser 216 divides the flow direction of the contaminated water 53 . The water diffuser 216 mitigates the collision between the contaminated water 53 . The water diffuser 216 induces the contaminated water 53 to have a certain directionality. The water diffuser 216 increases the flow rate of the contaminated water 53 flowing through the discharge passage 207 . The water diffuser 216 allows the pressure of the discharge passage 207 to be lower than the pressure of the suction pipe 270 .

Referring back to FIGS. 28 and 31 , the contaminated water 53 passes through the bending channel 275 and changes direction. The water diffuser 216 is disposed on the center line 271C of the front channel.

The bending channel 275 is disposed in a straight line toward the upstream 207a of the discharge passage 207 . The bending channel 275 is disposed inclined toward the downstream 207b of the discharge passage 207 . One side of the water diffuser 216 facing the front channel 271 is disposed in parallel with the center line 271C of the front channel, and the other side is inclined in the same direction as the direction in which the bending channel 275 is inclined. The inclined angle of the other side may be the same as the inclined angle of the bending channel 275 .

Some of the contaminated water 53 that has passed through the suction pipe 270 flows along the water diffuser 216 . When the angle of the water diffuser 216 is excessively inclined, flow separation of the contaminated water 53 may occur, so it is preferable not to be inclined excessively.

The water diffuser 216 and the water splitters 256a and 256b smooth the confluence of the contaminated water 53 to reduce the occurrence of a vortex wake or turbulent flow. The water diffuser 216 and the water splitters 256a and 256b smooth the confluence of the contaminated water 53 to reduce vibration and noise.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

Claims (44)

1. a mouthpiece for spraying washing water into the oral cavity;

   a core suction unit for sucking contaminated water mixed with washing water and saliva in the oral cavity; and

   A handle formed with a diffusion path for supplying washing water to the mouthpiece by forming a space in which the washing water flows in at least one of an inflow path through which the washing water flows, a discharge path through which the contaminated water flows, and an upper side or a lower side of the discharge path. ) containing mouthwash.
2. The method of claim 1,

   The handle is

   An oral irrigator comprising a diffusion boundary portion disposed upstream (rear end) of the discharge passage and linearly increasing the lateral width of the diffusion passage.
3. 3. The method of claim 2,

   Further comprising a suction pipe connecting the core suction unit and the discharge passage,

   The core suction unit,

   A diffusion limiting part for blocking the inflow of washing water flowing through the diffusion path and a diffusion limiting groove formed in the diffusion limiting part are formed to be fastened with one end of the suction pipe,

   The diffusion boundary portion,

   An oral irrigator having a diffusion boundary groove fastened to the other end of the suction pipe and protruding inside the handle to block the washing water flowing through the diffusion passage from flowing into the discharge passage.
4. The method of claim 1,

   The handle is

   The oral irrigator comprising a connecting partition wall disposed in an oblique direction such that the cross-sectional area of the flow passage decreases from the rear end to the front end of the discharge passage.
5. The method of claim 1,

   Inside the handle,

   A flow path guide for flowing the washing water discharged from the inflow path in different directions is disposed at a point where the handle and the mouthpiece are connected.
6. 6. The method of claim 5,

   The euro guide is

   An oral irrigator that is placed in a position facing the front teeth and divides the flow direction of the washing water into the left and right directions of the front teeth.
7. 6. The method of claim 5,

   The mouthpiece is

   a left labial surface-corresponding part and a right labial-facing part formed at positions facing the labial surface of the teeth;

   a left buccal corresponding portion and a right buccal corresponding portion formed at positions facing the buccal surface of the tooth;

   It includes a left lingual surface-corresponding part and a right lingual surface-corresponding part formed at a position facing the lingual surface of the tooth,

   The euro guide is

   An oral irrigator arranged to divide and flow the washing water toward the left labial counterpart and the right labial counterpart.
8. 6. The method of claim 5,

   The euro guide is

   The oral irrigator is inclined on the front-rear centerline of the mouthpiece and the handle.
9. The method of claim 1,

   The handle is

   An oral irrigator comprising a mouthguard formed on the outer circumferential surface and having a lateral end curved backward.
10. The method of claim 1,

    The handle is

    An oval-shaped mouthwash comprising an oval-shaped mouthguard each of which has an elliptical shape and each of the transverse ends thereof is curved backward.
11. a mouthpiece for spraying washing water into the oral cavity;

    a core suction unit for sucking contaminated water mixed with washing water and saliva in the oral cavity; and

    and a handle forming an inflow path through which the washing water flows, a diffusion path connecting the inflow path and the mouthpiece, and a discharge path through which the contaminated water discharged from the core suction unit flows,

    The handle is

    an inflow partition forming the inflow passage;

    an outlet bulkhead disposed to be spaced apart from the inlet bulkhead and forming an outlet flow path; and

    An oral irrigator comprising a connecting partition wall connecting the discharge partition wall and the inflow partition wall, and arranged to be inclined with respect to the front-rear center line of the handle to linearly decrease the width of the discharge passage from rear to front.
12. 12. The method of claim 11,

    Further comprising a suction pipe connecting the core suction unit and the discharge passage,

    The core suction unit,

    A diffusion limiting part for blocking the inflow of washing water flowing through the diffusion path and a diffusion limiting groove formed in the diffusion limiting part are formed to be fastened with one end of the suction pipe,

    The diffusion boundary portion,

    An oral irrigator with a diffusion boundary groove which is formed protruding inside the handle to block the washing water flowing through the diffusion passage from flowing into the discharge passage, and is coupled to the other end of the suction pipe.
13. 12. The method of claim 11,

    It is formed on the outer circumferential surface of the handle and has a lateral end toward the rear.

    The oral irrigator is curved in a bow shape so that one side in the transverse direction is in close contact with the adductor pollicis muscle and the other side in the transverse direction is in close contact with the proximal phalanx of the thumb.
14. a handle having an inlet channel through which the washing water flows and an outlet channel through which the contaminated water sucked from the oral cavity flows;

    a mouthpiece for spraying the washing water supplied through the handle into the oral cavity; and

    An oral irrigator comprising a core suction unit having a lower suction hole for sucking contaminated water discharged from the mouthpiece to wash teeth.
15. 15. The method of claim 14,

    The lower suction hole is an oral irrigator formed on the front-rear center line of the mouthpiece.
16. 15. The method of claim 14,

    The mouthpiece is

    A labial-facing portion formed at a position facing the labial surface of the tooth, a buccal-corresponding portion formed at a position facing the buccal surface of the tooth, and a lingual surface-facing portion formed at a position facing the lingual surface of the tooth including,

    The core suction unit,

    An oral irrigator wrapped by the tongue corresponding to the tongue and disposed on the user's tongue.
17. 15. The method of claim 14,

    The lower suction hole is formed at a position facing the tongue, and the surface where the core suction unit and the mouthpiece are coupled is curved in a 'U' shape.
18. 15. The method of claim 14,

    The core suction unit,

    A suction induction part protruding from the edge of the lower suction hole to guide the contaminated water to the lower suction hole is formed,

    The suction induction unit,

    An oral irrigator with a trough through which contaminated water flows toward the front.
19. 15. The method of claim 14,

    The lower suction hole,

    A first lower suction hole and a second lower suction hole formed in the rear of the first lower suction hole,

    The first suction guide portion formed in the first lower suction hole is an oral irrigator formed higher than the tongue corresponding portion.
20. 15. The method of claim 14,

    The lower suction hole,

    A first lower suction hole and a second lower suction hole formed in the rear of the first lower suction hole,

    The first suction guide portion formed in the first lower suction hole is formed higher than the second suction guide portion formed in the second lower suction hole mouth irrigator.
21. 15. The method of claim 14,

    The core suction unit,

    An oral irrigator having a 'U' shape at the edge of the lower suction hole and including a suction induction part protruding downward.
22. 15. The method of claim 14,

    The core suction unit,

    An oral irrigator having a shape that protrudes toward the front and is recessed toward the rear, and includes a suction induction part formed at the edge of the lower suction hole.
23. 15. The method of claim 14,

    The core suction unit,

    A rear suction hole is formed at the position facing the uvula,

    The rear suction hole is an oral irrigator disposed on the front-rear center line of the mouthpiece.
24. a handle having an inlet channel through which the washing water flows and an outlet channel through which the contaminated water sucked from the oral cavity flows;

    a mouthpiece for spraying the washing water supplied through the handle into the oral cavity; and

    It sucks the contaminated water discharged from the mouthpiece to wash the teeth, and includes a core suction unit connected to the mouthpiece,

    The core suction unit is an oral irrigator in which an upper suction hole is formed at a position facing the roof of the mouth.
25. 25. The method of claim 24,

    The core suction unit is an oral irrigator whose center is disposed on the user's median sulcus of tongue.
26. 25. The method of claim 24,

    The lower end of the core suction part is formed at a position higher than the lower end of the mouthpiece,

    The upper end of the core suction unit is formed lower than the upper end of the mouthpiece.
27. 25. The method of claim 24,

    The mouthpiece is

    An anterior suction hole is formed in the part facing the chewing surface of the front teeth,

    The core suction unit,

    A lower suction hole is formed in a position facing the tongue, an upper suction hole is formed in a position facing the roof of the mouth, and a rear suction hole is formed in a position facing the uvula,

    The front suction hole, the lower suction hole, the upper suction hole, and the rear suction hole is an oral irrigator formed in a line on a front-rear center line.
28. a handle having an inlet channel through which the washing water flows and an outlet channel through which the contaminated water sucked from the oral cavity flows;

    The washing water supplied through the handle is sprayed into the oral cavity, and the labial surface-corresponding part formed at a position facing the labial surface of the tooth and the buccal surface-facing part formed at the position facing the buccal surface of the tooth and the tooth a mouthpiece including a lingual surface-facing portion formed at a position facing the lingual surface; and

    An oral irrigator comprising a core suction unit for sucking the contaminated water discharged from the mouthpiece and cleaning the teeth on the user's median sulcus of tongue, and having an outer rim coupled to the tongue counterpart.
29. 29. The method of claim 28,

    A lower suction hole facing the user's tongue is formed in the center of the core suction unit,

    The lower suction hole includes a first lower suction hole and a second lower suction hole formed behind the first lower suction hole,

    A first suction induction part formed in the first lower suction hole and protruding downward,

    An oral irrigator formed in the second lower suction hole and protruding further downward than the second suction induction part protruding downward.
30. 29. The method of claim 28,

    The rear end of the core suction unit,

    The oral irrigator is disposed in front of the rear end of the buccal counterpart, and is disposed in front of the rear end of the tongue counterpart.
31. a handle having an inflow path through which the washing water flows; and

    It includes a mouthpiece having a jet hole for spraying the washing water into the oral cavity,

    The mouthpiece is

    a labial surface corresponding to a position facing the labial surface of the tooth;

    a buccal corresponding portion connected to the labial counterpart and formed at a position facing the buccal surface of the tooth;

    The lingual surface of the tooth (lingual surface) and formed in a position facing the corresponding portion of the tongue; and

    An oral irrigator including an intermediate portion having both ends starting at the connection point of the labial-facing part and the lingual-facing part and connecting the labial-facing part and the lingual-facing part.
32. 32. The method of claim 31,

    An outer injection passage is formed in the labial surface-corresponding portion and the buccal surface-corresponding portion, and an inner injection passage is formed in the tongue-facing portion,

    The oral irrigator has a diffusion passage connecting the outer injection passage and the inner injection passage in the intermediate portion.
33. 32. The method of claim 31,

    The buccal corresponding part,

    One end is fixed to the labial counterpart, the other end is an oral irrigator formed as a free end.
34. 32. The method of claim 31,

    In the space between the tongue-corresponding part and the buccal-corresponding part,

    One first contraction-allowing hole is formed so that all areas of the chewing surface of teeth 1, 2, 3 and 4 form an empty space,

    An oral irrigator with one second shrinkage tolerance hole formed so that all areas of the chewing surfaces of teeth 13, 14, 15, and 16 form empty spaces.
35. 32. The method of claim 31,

    The side end of the intermediate part,

    The oral irrigator has a shape in which the buccal counterpart is depressed in the central direction to enable elastic movement in the direction of the labial counterpart.
36. 32. The method of claim 31,

    The side end of the intermediate part,

    The oral irrigator is curved in a 'C' shape so that the buccal corresponding portion is elastically movable in the direction of the labial counterpart.
37. 32. The method of claim 31,

    The intermediate portion is an oral irrigator formed at a position facing the chewing surface of the front teeth.
38. 32. The method of claim 31,

    The mediator is

    An oral irrigator connecting the rear surface of the labial surface correspondence part and the front surface of the tongue surface correspondence part.
39. 32. The method of claim 31,

    The spray hole is

    An oral irrigator formed in the direction toward the cervix, which is between the crown and the gum.
40. 32. The method of claim 31,

    The mediator is

    An oral irrigator that is formed at a position facing the chewing surface of the user's front teeth to form an anterior suction hole for sucking contaminated water existing in the oral cavity.
41. a handle having an inflow path through which the washing water flows; and

    It includes a mouthpiece having a jet hole for spraying the washing water into the oral cavity,

    The mouthpiece is

    a labial surface corresponding to a position facing the labial surface of the tooth;

    a buccal corresponding portion connected to the labial counterpart and formed at a position facing the buccal surface of the tooth;

    A lingual surface corresponding portion formed at a position facing the lingual surface of the tooth; and

    Formed at the position where teeth 7, 8, 9, and 10 are bitten to connect the labial counterpart and the lingual counterpart, and the lateral end is connected to the boundary between the buccal and the lingual counterpart. Intermediation including,

    An outer injection passage is formed in the labial surface-corresponding portion and the buccal surface-corresponding portion, and an inner injection passage is formed in the tongue-facing portion,

    The oral irrigator has a diffusion passage connecting the outer injection passage and the inner injection passage in the intermediate portion.
42. A labial surface-corresponding part formed at a position facing the labial surface of the tooth, a lingual surface-facing part formed at a position facing the lingual surface of the tooth, and an intermediate part connecting the labial surface-corresponding part and the lingual surface A mouse comprising a peace;

    a core suction unit disposed on the user's tongue to suck contaminated water inside the oral cavity; and

    A suction pipe disposed inside the intermediate part, forming a concentration flow path through which the contaminated water sucked in the core suction part flows, and having a vertical channel protruding in the longitudinal direction to form a flow interval in the longitudinal direction with the mouthpiece. Including mouthwash.
43. 43. The method of claim 42,

    The mouthpiece is

    It is connected to the labial counterpart, further comprising a buccal surface formed in a position facing the buccal surface of the tooth,

    In the space between the tongue-corresponding part and the buccal-corresponding part,

    The first contraction-allowing hole is formed so that all areas of the chewing surface of teeth 1, 2, 3 and 4 form an empty space,

    A second contraction-allowing hole is formed so that all areas of the chewing surfaces of teeth 13, 14, 15, and 16 form empty spaces,

    The first shrinkage permitting hole and the second shrinkage permitting hole are,

    Mouthwash with one hole each.
44. 44. The method of claim 43,

    The first shrinkage permitting hole and the second shrinkage permitting hole are,

    forming a boundary with the intermediate part, the tongue-facing part, and the buccal-facing part,

    The rear end of the buccal corresponding portion is an oral irrigator forming a free end.

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