KR20170011982A

KR20170011982A - Strengthener Of Muscle Around Mouth

Info

Publication number: KR20170011982A
Application number: KR1020160025576A
Authority: KR
Inventors: 김보균
Original assignee: 김보균
Priority date: 2015-07-23
Filing date: 2016-03-03
Publication date: 2017-02-02
Also published as: KR101713061B1

Abstract

The present invention discloses a muscle strengthening mechanism around the mouth. An oral percutaneous muscle strengthening device according to one aspect of the present invention includes: a retractable retractor capable of being stretched by an external force for muscle strengthening around the mouth and contracted by a restoring force; And a mouthpiece which is provided on the retractor and is supported by the retractor so as to apply the external force to the retractor by being caught or bite on the lips.
The muscular strengthening mechanism around the mouth according to the present invention strengthens and activates muscles around the mouth by applying a pulling force to the lips, thereby preventing sagging of the lips and improving skin elasticity around the mouth and suppressing the generation of wrinkles around the mouth . In addition, the muscle strengthening mechanism around the mouth according to the present invention is capable of activating skin cells around the mouth through ultrasonic stimulation, realizing wrinkle reduction, wrinkle suppression and facial whitening effect, Contributing to the reduction of the number, and further contributing to skin massage effect, pigment reduction effect and smooth blood flow effect. To provide a muscular strengthening mechanism around the mouth.

Description

[Strengthener Of Muscle Around Mouth]

The present invention relates to a muscle strengthening mechanism around the mouth, and more particularly, to a muscle strengthening mechanism around the mouth which can reinforce muscles around the mouth and further apply ultrasonic stimulation around the mouth.

The muscles distributed in the human body are aged as they age. More specifically, the muscles relax and taper, thereby reducing muscle strength, causing the skin to sag and wrinkles.

Especially, the aging of muscles and skin distributed around the mouth or around the jaws of the facial muscles leads to wrinkles on the face, for example, wrinkles on the wrists or fine lines on the mouth, which makes the pronunciation inaccurate and hinders smooth chewing.

And, due to the aging of the muscles around the mouth, the lower lip is struck down irrespective of the will of the person, and the upper lip and lower lip are twisted, and when the food is consumed or the water is consumed, .

In addition, since skin aging and wrinkles caused by aging of muscles appear older than actual age, they can act as psychological anxiety in interpersonal relationships and cause complexity.

Accordingly, while facial cosmetics and facial muscles that give elasticity to the balls are being marketed to enhance the face while looking younger than the actual age, there is a difficulty in obtaining elasticity around the mouth through muscle strengthening around the mouth There is also a limitation in giving elasticity around the mouth with cosmetics.

Korean Utility Model Registration No. 20-0389115 Korean Utility Model Registration No. 20-0370193

It is an object of the present invention to provide a muscular strengthening mechanism around the mouth which can strengthen the muscles around the mouth by applying a stimulus to the lips. More specifically, an object of the present invention is to provide a muscle strengthening mechanism around the mouth which can strengthen muscle strength around the mouth, impart skin elasticity, and further apply ultrasonic stimulation around the mouth.

One aspect of the present invention is a method for producing A retractable retractor capable of being stretched by an external force for muscle strengthening around the mouth and contracted by a restoring force; And a mouthpiece provided on the retractor for applying the external force to the retractor by being caught or bite on the lips, the mouthpiece being supported by the retractor.

The retractor comprising: A handpiece for a handle, and a connector extending from the handpiece and connected to the mouthpiece.

The handpiece includes a case and a piston; Wherein the case is formed with a piston chamber into which the piston is inserted; The piston is inserted into the piston chamber of the case movably in the front-rear direction, and is connected to the connector to support the connector.

The piston may be restored by at least one of a pressure difference and an elastic body. The handpiece may further include an elastic body provided in the case for restoration of the piston.

The piston chamber may be openable and closable for adjusting an internal pressure of the piston chamber. Whereby the piston chamber can selectively communicate with the outside air.

Said case comprising: A barrel forming the piston chamber, and a case cover accommodating the barrel. The case cover may be made of a silicone material or a rubber material having surface elasticity.

The connector may be movably connected to the piston so as to be able to enter the piston a certain distance. The case may have a mouthpiece receiving groove formed at one side of the case to receive the mouthpiece. The mouthpiece may be detachably connected to the connector.

The mouth-surrounding muscle strengthening mechanism may further comprise an ultrasonic generator for generating an ultrasonic stimulus on the mouthpiece so that ultrasonic stimulation is applied to the lip. For example, the ultrasonic generator may include an ultrasonic vibration generator provided in the retractor.

The muscle strengthening mechanism around the mouth according to the present invention has the following effects.

The muscular strengthening mechanism around the mouth according to the present invention strengthens and activates muscles around the mouth by applying a pulling force to the lips, thereby preventing sagging of the lips and improving skin elasticity around the mouth and suppressing the generation of wrinkles around the mouth .

In addition, the muscle strengthening mechanism around the mouth according to the present invention is effective for maintenance during the facial cosmetic surgery, can maintain / improve the masticating performance, and can suppress the decline of the masticatory performance due to aging or denture use.

In addition, the muscle strengthening mechanism around the mouth according to the present invention is capable of activating skin cells around the mouth through ultrasonic stimulation, realizing wrinkle reduction, wrinkle suppression and facial whitening effect, Contributing to the reduction of the number, and further contributing to skin massage effect, pigment reduction effect and smooth blood flow effect.

BRIEF DESCRIPTION OF THE DRAWINGS The features and advantages of the present invention will become better understood with reference to the following description taken in conjunction with the following detailed description of embodiments of the invention,
1 is a perspective view showing an embodiment of a perineal muscle-strengthening device according to the present invention;
2 is a sectional view showing another embodiment of the perineal muscle strengthening device according to the present invention;
3 is a perspective view showing another embodiment of the perineal muscle-strengthening device according to the present invention;
Fig. 4 is a cross-sectional view of the mouth-and-mouth muscle strengthening mechanism shown in Fig. 3;
FIG. 5 is a perspective view showing still another embodiment of the perineal muscle-strengthening device according to the present invention; FIG.
6 is a cross-sectional view showing another embodiment of the perineal muscle-strengthening mechanism according to the present invention;
7 is a cross-sectional view showing another embodiment of the perineal muscle-strengthening device according to the present invention;
FIG. 8 is a cross-sectional view of the mouth-surrounding muscle strengthening mechanism shown in FIG. 7 in an extended state; FIG.
FIG. 9 is a perspective view of the mouth-and-mouth muscle strengthening mechanism shown in FIG. 8; FIG.
10 is a cross-sectional view showing a connection structure of a piston and a connector of the mouth-and-mouth muscle strengthening mechanism shown in FIG. 7;
11 is a sectional view showing still another embodiment of the perineal muscle-strengthening device according to the present invention; And
12 is a view showing a state in which the mouthpiece of the embodiment shown in FIG. 11 is bitten by the lips.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention in which the objects of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the embodiments of the present invention, the same names and the same symbols are used for the same configurations, and additional description thereof will be omitted in the following.

Embodiments of the present invention comprise an eccentric configuration (retractor) for providing a traction stimulus on the lips and mouth, and a configuration (mouthpiece) for delivering a traction stimulus to the muscles around the mouth by biting the lips.

First, referring to Figs. 1 to 6, various embodiments of the perineal muscle strengthening device according to the present invention are described.

1 is a perspective view showing an embodiment of a mouth-and-mouth muscle strengthening device according to the present invention (first embodiment), and Fig. 2 is a perspective view showing another embodiment 3 is a perspective view showing still another embodiment (third embodiment) of the muscle strengthening mechanism around the mouth according to the present invention, and Fig. 4 is a perspective view showing the muscle strengthening around the mouth shown in Fig. 3 Sectional view of the mechanism (third embodiment). FIG. 5 is a perspective view showing another embodiment (fourth embodiment) of the mouth-surrounding muscle strengthening mechanism according to the present invention, and FIG. 6 is a perspective view showing another embodiment Fig.

Referring to FIG. 1, the mouth-surrounding muscle strengthening mechanism 10A according to the first embodiment of the present invention includes a retractable retractor 100 for strengthening muscles around the mouth, a mouthpiece 100 provided on the retractor, And a mouthpiece (200).

The retractor 100 is a stretchable component that can be stretched by an external force and contracted by a restoring force when an external force is removed, as a structure for applying forward pulling force (pulling force) around the mouth.

The mouthpiece 200 is supported by the retractor 100 as a structure for applying the external force to the retractor 100 by being caught or tucked against the lips. That is, when the user holds the mouthpiece 200 on the lips and pulls the retractor 100 forward, the retractor 100 may be stretched and a traction stimulus may be applied around the mouth of the user.

At this time, if the user keeps the mouthpiece 200 from being released from the lips, an exercise stimulus may be applied to the muscles around the mouth, and muscles around the mouth can be strengthened through continuous training.

There are various kinds of muscles around the mouth around the mouth such as mouth muscles and lip muscles (upper lip lifting, lower lip lifting, lower lip lowering muscle), tongue lifting muscle and lowering muscle. .

The retractor 100 includes a handpiece 110 as a handle and a connector 120 extending from the handpiece. The mouthpiece 200 is connected to the connector 120.

In this embodiment, the dental mouthpiece 200 is provided at the rear end of the connector 120 and is sandwiched between the lips and the lateral gingiva so that it is held between the upper and lower lips and is supported by the inner surface of the lips.

The handpiece 110 includes a hollow case 111 and a piston 112 movably installed in the case 111. [ A piston chamber 113 is formed in the case 111 and the piston 112 is inserted into the piston chamber 113 so as to be movable forward and backward.

In this embodiment, the case 111 is a cylindrical cylinder structure having a rear end open, and the connector 120 is connected to the piston 112. More specifically, the connector 120 is supported by the piston 112, the piston 112 is connected to the distal end of the connector 120, and the rear end of the connector 120 is connected to the above- The mouthpiece 200 is connected.

The restoring force of the retractor 100 is a force for returning the piston 112 to an original position when an external force applied to the piston 112 is removed and the pressure difference applied to both sides of the piston 112 and / And can be expressed by an elastic force or the like that elastically supports the piston 112 in its original position (initial setting position). In other words, the piston 112 can be restored by at least one of the pressure difference and the elastic body.

In this embodiment, the piston 112 is restored by a pressure difference applied to the front and rear of the piston 112, but may be elastically supported forward by using an elastic body such as a spring .

The piston 112 is fitted in the case 111 to form a closed space in the piston chamber 113 and the rear of the piston 112 is exposed to atmospheric pressure. Therefore, when the piston 112 moves backward, the closed space of the piston chamber 113 increases, and the internal pressure of the closed space becomes lower than the atmospheric pressure, so that the piston 112 is returned to its original position A restoring force is generated. Of course, the connector may be made of a stretchable or elastic material such as a stretchable material.

In the embodiment shown in FIG. 2, the piston 112 is returned to its original position by an elastic body 130 such as a spring, and the elastic body 130 is connected to the piston 112 And applies an elastic force to the piston 112 forward.

In the embodiment shown in FIG. 2 (second embodiment), the piston 112 does not need to form a closed space in the piston chamber 113, When a closed space is formed in the piston chamber 113, a restoring force by both the pressure difference and the elastic force can be generated.

The case 111 may be made of a transparent material such as a transparent plastic material so that the position of the piston 112 can be confirmed, and a scale may be displayed on the case 111.

Although not shown, the connector 120 may be detachably coupled to the piston 112. For example, when a screw hole is formed in the piston 112 and a bolt is applied to the tip of the connector, the connector can be bolted to the piston. Also, the mouthpiece 200 may be detachably connected to the connector 120 using a bolt connection method or a ring connection method described below. Accordingly, the connector 120 and the dental mouthpiece 200 can be replaced with each other in accordance with the user's preference, oral cavity structure, etc., and the compatibility of the product can be improved.

3 and 4, the mouthpiece 200 may be coupled to the connector 120 by couplers 121 and 122, and may be detached from the connector 120 if necessary It is possible.

The coupler may include a connection ring 121 and a hook 122. The connector 120 and the mouthpiece 200 are separated from each other by the attachment and detachment of the connection ring 121 and the hook 122, / Bond can be made. In other words, the hook 122 is detachably hooked to the linking loop 121 and supported by the linking loop 121.

The hook 121 is provided on one of the mouthpiece 200 and the connector 120 and the hook 122 is provided on the other side. In the present embodiment (third embodiment), the mouthpiece is provided with the hook 122, and the connector 120 is provided with the connection ring 121, but the reverse is also possible.

The dental mouthpiece 200 preferably has a structure capable of stimulating the surrounding muscles of the upper lip and the surrounding muscles of the lower lip. For example, the dental mouthpiece 200 is inserted between the upper lip and the lower lip, Can be a leaf spring structure that re-opens when an external force is removed.

More specifically, the dental mouthpiece 200 may have a V-shaped structure that is branched into two parts, that is, an upper piece 210 (see FIG. 4) and a lower piece 220 (see FIG. 4) For example, the mouthpiece 200 may have a T-shaped structure. The upper piece 210 is sandwiched between the inner side of the upper lip and the lower side of the upper teeth, and the lower piece 220 is sandwiched between the inner side of the lower lip and the lower side of the lower lip.

In addition, the piston chamber 113 of the case may be openable and closable for adjusting the internal pressure. For example, the case 111 may have a chamber hole 110a communicating with the piston chamber 113, in particular, a closed space, and the chamber hole 110a may be opened or closed by using a cap 140, The chamber hole 110a may be partially opened.

Accordingly, the initial position of the piston 112 can be changed, and as a result, the stroke of the piston can be changed, and the force (pulling force) required to move the piston 112 can be adjusted So that the force applied around the mouth can be newly set to match the strength of the individual user.

Also, the dental mouthpiece 200 may be provided with an elastic body 201 for restoring the dental mouthpiece 200. 6, an elastic body 201 such as a spring for applying an elastic force to the dental mouthpiece 200 in a direction in which the upper piece 210 and the lower piece 220 are widened, And may be applied to the inside of the mouthpiece 200. As a result, muscles around the mouth can be trained by moving the mouth.

Referring to FIG. 6, the mouthpiece 200 may include a lip groove into which the lip is inserted. The lip groove may be divided into an upper groove 211 formed in the upper piece 210 and a lower groove 221 formed in the lower piece 220 so that the lower lip is fitted .

It is a matter of course that the above-described opening and closing system of the coupler and the piston chamber and the constitution of the elastic body and the lip groove of the mouthpiece can be similarly applied to the first embodiment of the present invention. The method is as follows.

First, the user can place the mouthpiece 200 on the inner side of his or her lips, especially on the side of the teeth, repeat the operation of licking the mouth, or keep the mouth closed, thereby training the muscles around the mouth as well as the muscles around the mouth have.

The user is then able to stimulate the facial muscles further around the lips and mouth by repeatedly pulling or pulling the retractor 100 forward, and the stimulus applied by the retractor 100 around the mouth (Force), thereby improving the strength around the mouth.

Next, another embodiment (10B; sixth embodiment) of the perineal muscle strengthening mechanism according to the present invention will be described with reference to Figs. 7 to 10.

Referring to Figs. 7 to 10, the present embodiment 10B includes a retractable retractor 100A and a mouthpiece 200. Fig. The retractor 100A includes a handpiece and a connector 120. [

The handpiece includes a case 111 having a barrel 111a and a case cover 111b and a piston 112 movably provided in the case 111. The handpiece includes a connector 120 Connects the piston 112 to the dental mouthpiece 200.

The barrel 111a forms a piston chamber 113 and the piston 112 is inserted into the barrel 111a so as to be movable in forward and backward directions. The case cover 111b accommodates the barrel 111a to form the surface of the retractor 100A.

The case cover 111b may be made of a soft material, for example, a material having surface elasticity. More specifically, the case cover 111b may be made of a silicone material, a rubber material, or the like. The case 111 is recessed at an intermediate portion to facilitate grip. Although not shown, a non-slip structure, for example, a concave-convex structure or a wrinkle structure, may be applied to the case cover 111b.

In this embodiment, the connector 120 is movably connected to the piston 112. More specifically, the connector 120 can be retractably connected to the piston 112, and can be introduced into the piston 112 for a certain distance.

A connector connecting hole 112a through which the tip of the connector 120 is connected is formed in the piston 112 and a tip end of the connector 120 is connected to the connector connecting hole 112a in a forward and backward direction Respectively.

10, a stopper 160 movably installed in the connector connection hole 112a is provided at the tip of the connector 120, and the stopper 160 is connected to the connector It is possible to freely move between the leading end and the trailing end of the connector connecting hole 112a along the connecting hole 112a. Accordingly, the user can pull the mouthpiece 200 to the rear of the retractor 100A without applying a large force, i.e., a reaction force against the restoring force. The connector 200 may be a telescopic structure so that the user can draw the dental mouthpiece 200 to the rear of the retractor 100A without a large force.

In the case 111, a receiving groove 114 for receiving the dental mouthpiece 200 is formed. In the present embodiment, the receiving groove 114 is formed at a rear portion of the case 111 so as to be forwardly received, and receives the mouthpiece 200.

The holding groove 114 is formed in the receiving groove 114 to receive the mouthpiece 200. The holding grooves 114a are formed on the upper surface and the lower surface of the receiving groove 114, respectively.

The dental mouthpiece 200 stored in the receiving groove 114 does not receive the resistance due to the internal pressure (restoring force) of the piston chamber 113, The user can easily hold the mouthpiece 200, and when the mouthpiece is stored, the mouthpiece can be pushed into the receiving groove.

Meanwhile, the present embodiment may further include any one of the stimulators 150, such as an ultrasonic generator that generates ultrasonic stimulation in the mouthpiece 200, or a vibration generator that generates a vibration stimulus. The stimulator 150 may be provided in the retractor 100A or the mouthpiece 200. The ultrasonic generator applies ultrasonic stimulation, for example, ultrasonic vibration to the mouth.

The ultrasonic generator 150 may be installed in the case 111 or the piston 112 or the connector 120 more specifically than the retractor 100A, Ultrasonic stimulation, for example, ultrasonic vibration, is generated in the mouthpiece 200 by being transmitted to the mouthpiece 200 through an ultrasonic stimulus. In the present embodiment, the ultrasonic generator 150 is an ultrasonic vibration generator, and is provided at the tip of the connector 120, more specifically, the stopper 160, but is not limited thereto. Although not shown, the retractor may be provided with a device for driving the ultrasonic generator or the vibration generator, and a power battery. Of course, the ultrasonic generator or the vibration generator may be supplied with external power through a power cable, and the power battery is preferably a rechargeable type.

Ultrasound is a sound that vibrates so fast that it can not be heard by humans, and it refers to sound waves in excess of 18,000 Hz. Using this ultrasonic vibration, the heat is stimulated together to accelerate muscle strengthening, increase elasticity, It can keep a variety of problematic skin such as spots, acne, scars, cellulite, capillaries, etc. in a healthy skin condition.

Ultrasound massage reaches skin cells, activates skin cells and loosens muscles to make skin healthy. Friction heat from vibration increases skin temperature and improves circulation of blood and lymph, thus facilitating nutrition. . As a result, the metabolism of the cells is normalized and the metabolism of the epidermis becomes active.

In addition, the vibration of the ultrasonic wave extinguishes wastes existing deep inside the pores to make the skin whitish and radiant. By reducing the melanin pigment oxidized by the ultraviolet rays, the whitening effect can be expected because it removes stains, freckles, acne and fine wrinkles.

The ultrasonic stimulation is effective for wrinkles and stains, acne-prone skin, and stubborn skin. If the ultrasonic waves are further applied to the skin, especially around the mouth, the soft tissue can be restored and the wrinkles and drooping skin can be improved.

In addition, since the above-described ultrasonic stimulation normally produces metabolism of the hair cell that produces the second skin of the epidermis, it prevents the hyperkeratosis phenomenon of the skin and allows new cells to be actively regenerated to have a shiny skin, Of wrinkles can be promoted and the release of melanin, which causes spots and freckles, can be promoted.

By increasing the temperature of the tissues around the mouth of the ultrasonic waves, it is possible to normalize the vascular function by applying to collagen tissue elongation, blood flow change, nerve conduction velocity change, pain relief, increased enzyme activity and light skin, And promoting the circulation of the blood.

Ultrasonic stimulates the skin around the mouth and helps to remove wastes and activates the skin, thereby discharging the secretion out. Therefore, the ultrasonic wave is effective in treating acne, and the frictional force due to vibration increases the skin temperature, Better circulation of blood and lymph. When the ultrasonic vibration of the ultrasonic wave is applied around the mouth, massage effect is shown in the cells of the surrounding tissue, and relaxation of the cell structure, decrease of swelling, promotion of metabolism, and activation of the biological constitution can be shown.

In addition, ultrasonic stimulation around the mouth leads to reduction of pore size, activation of fibroblasts in the dermis promotes the synthesis of collagen and elastin, thereby improving wrinkles, protecting the dermis, and damaging the cells of the basal layer by ultraviolet rays And the like.

Therefore, the present embodiment can obtain the effect of improving the perineal tissue by training of muscles by traction stimulation and ultrasonic stimulation.

The ultrasonic generator 150 may be installed in the mouthpiece 200 rather than the retractor 100A as in the embodiment shown in FIG. 11 (seventh embodiment). Referring to FIGS. 11 and 12, the ultrasonic generator 150 may be installed in the mouthpiece 200 to apply ultrasonic stimulation directly to the tissue around the mouth.

More specifically, the ultrasonic wave generator 150 is provided on the upper piece 210 and the lower piece 220 of the dental mouthpiece, respectively, and the ultrasonic wave generator 150 is provided on the inner side of the upper lip and the lower lip 220, .

Since the ultrasonic generator itself is a known technique, such as the principle and structure of the ultrasonic generator, additional description of the ultrasonic generator is omitted in this specification. The opening and closing manner of the coupler and the piston chamber described in the first to fifth embodiments and the configuration of the elastic body and the lip groove of the mouthpiece are the same in the sixth and seventh embodiments of the present invention Can be applied. Also, the ultrasonic generator may be applied to the first to fifth embodiments described above.

In addition, a stimulator, that is, a vibration generator that generates vibration in the mouthpiece so as to apply a vibration stimulus in a band out of the ultrasonic vibration band to tissues around the oral tissues and / or the mouth through the mouthpiece, And may be provided in the retractor or the mouthpiece.

As described above, according to the present invention, the present invention can be embodied in other specific forms without departing from the spirit and scope of the present invention. It is obvious to them.

Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

The present invention relates to a muscle strengthening mechanism around the mouth, and more specifically, a muscle strengthening mechanism around the mouth which strengthens the muscles around the mouth and further applies ultrasonic stimulation around the mouth. The present invention can be applied to the field of facial beauty equipment and exercise equipment for muscle training, and it is possible to obtain an effect of improving the surrounding tissue by training of muscles around the mouth by traction stimulation and ultrasonic stimulation.

10A, 10B: Muscle strengthening device around the mouth 100, 100A: Retractor
110: handpiece 111: case
111a: Barrel 111b: Case cover
112: piston 120: connector
130: elastic body 140: stopper
150: Ultrasonic generator 160: Stopper
200: mouthpiece 210: upper piece
220: Lower piece

Claims

A retractable retractor capable of being stretched by an external force for muscle strengthening around the mouth and contracted by a restoring force; And
And a mouthpiece that is provided on the retractor and is supported by the retractor to apply the external force to the retractor by being caught or bite on the lips.

The method according to claim 1,
The retractor comprising:
Handpiece for Handle, and
And a connector extending from the handpiece and connected to the mouthpiece.

3. The method of claim 2,
The handpiece includes a case and a piston; Wherein the case is formed with a piston chamber into which the piston is inserted; Wherein the piston is movably inserted in the piston chamber of the case in the forward and backward directions and is connected to the connector to support the connector.

The method of claim 3,
Wherein the piston is restored by at least one of a pressure difference and an elastic body.

5. The method of claim 4,
Wherein the handpiece further comprises an elastic body provided in the case for restoration of the piston.

The method of claim 3,
Wherein the piston chamber is openable and closable for adjusting the internal pressure of the piston chamber.

The method of claim 3,
Said case comprising:
A barrel defining the piston chamber, and
And a case cover for accommodating the barrel.

The method of claim 3,
Wherein the connector is movably connected to the piston and is capable of entering the piston a certain distance.

3. The method of claim 2,
Wherein the case has a mouthpiece receiving groove formed at one side of the case to receive the mouthpiece.

3. The method of claim 2,
Wherein the mouthpiece is detachably connected to the connector.

3. The method of claim 2,
An ultrasonic generator for generating an ultrasonic stimulus on the mouthpiece or a vibration generator for generating a vibration stimulus.

12. The method of claim 11,
Wherein the ultrasonic generator includes an ultrasonic vibration generator provided in the retractor.