WO2022215813A1

WO2022215813A1 - Oral protection device

Info

Publication number: WO2022215813A1
Application number: PCT/KR2021/011774
Authority: WO
Inventors: 이상화; 정미영
Original assignee: 가톨릭대학교 산학협력단
Priority date: 2021-04-09
Filing date: 2021-09-01
Publication date: 2022-10-13
Also published as: KR102576058B1; KR20230132418A; KR20220140117A

Abstract

The present invention relates to an oral protection device comprising: a tray including a teeth engagement part with which a plurality of upper teeth or a plurality of lower teeth are engaged; and at least one spacer protruding from the teeth engagement part so as to space the plurality of upper teeth and the plurality of lower teeth apart from each other.

Description

oral protection device

The present invention is a method of intubation of the tracheal tube or oral structures such as teeth and tongue due to involuntary mandibular movement due to nerve stimulation during surgery performed in an upright or prone position under general anesthesia. It relates to an oral protection device that can prevent it.

In general, a tracheal intubation tube is intubated into a patient's trachea to secure the patient's airway during surgery or artificial respiration performed under general anesthesia.

However, there is a problem in that oral structures such as teeth and tongue are damaged due to involuntary mandibular movement due to nerve stimulation during intubation of a tracheal intubation tube or surgery performed under general anesthesia. In addition, there is a problem that complications occur after surgery, resulting in legal conflicts with patients.

However, due to involuntary mandibular movement due to nerve stimulation, a practical device or tool for preventing damage to oral structures such as teeth and tongue has not yet been commercialized.

The present invention has been devised to solve the above problems, and an object of the present invention is to provide involuntary mandibular movement due to nerve stimulation during tracheal intubation of a tracheal intubation tube or surgery performed in an upright or prone state under general anesthesia. Due to this, it is to provide an oral protection device capable of preventing damage to oral structures such as tracheal intubation tube, teeth, and tongue.

The problems to be solved by 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.

Oral protection device according to an embodiment of the present invention for solving the above-described problems is a tray comprising a tooth bite portion is bitten by a plurality of upper teeth or a plurality of mandibular teeth; and one or more spacers formed to protrude from the tooth bite part to space the plurality of upper teeth and the plurality of mandibular teeth.

In addition, the tray may further include a tooth cover portion disposed along the front surface of the plurality of upper teeth or the plurality of mandibular teeth.

In addition, provided in the tooth cover portion, it may further include a tube guide for supporting the tracheal intubation tube inserted into the trachea.

In addition, coupled to the tube guide, the wing portion having a fixing string insertion hole; And it may include a fixing strap for fixing the tracheal intubation tube coupled to the tube guide through the fixing strap insertion hole.

In addition, a plurality of first snap buttons arranged along the periphery of the tooth cover portion; and a second snap button coupled to the tube guide and selectively detachable from the plurality of first snap buttons.

Also, the tray may further include a stopper disposed along the rear surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth to prevent the tongue from passing through the tooth bite part.

In addition, the tray may further include an auxiliary tray including an auxiliary tooth engaging part to which any one of a plurality of upper teeth or a plurality of mandibular teeth not bitten by the tray is bitten.

In addition, the auxiliary tray may further include an auxiliary tooth cover part disposed along the front surface of any one of a plurality of upper teeth and a plurality of mandibular teeth that are not bitten by the tray.

Also, the auxiliary tray may further include an auxiliary stopper disposed along the rear surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth that are not bitten by the tray, and preventing the tongue from passing through the auxiliary tooth biting portion.

In addition, the auxiliary tray may include one or more auxiliary spacers that are formed to protrude from the auxiliary tooth engagement part to space the plurality of upper teeth and the plurality of mandibular teeth.

In addition, the spacer and the auxiliary spacer may be disposed to be shifted from each other.

In addition, the tray, the auxiliary tray, the spacer, and the auxiliary spacer may include any one of an elastic material, a soft material, and a thermoplastic plastic.

Oral protection device according to another embodiment of the present invention is a tray comprising a tooth bite portion is bitten by a plurality of upper teeth or a plurality of mandibular teeth; One or more spacers formed to protrude from the tooth engagement portion to space the plurality of upper teeth and the plurality of mandibular teeth; and an auxiliary tray connected to the tray and including an auxiliary tooth engaging part through which any one of a plurality of maxillary teeth or a plurality of mandibular teeth not bitten by the tray is bitten.

In addition, the tray further includes a tooth cover portion disposed along the front surface of the plurality of upper teeth or the plurality of mandibular teeth, the auxiliary tray, any one of a plurality of upper teeth or a plurality of mandibular teeth that are not bitten by the tray It may further include an auxiliary tooth cover portion disposed along the front surface of the.

In addition, the tray is disposed along the rear surface of the plurality of maxillary teeth or the plurality of mandibular teeth, and further comprises a stopper for preventing the tongue from falling over to the tooth bite portion, the auxiliary tray, It may further include an auxiliary stopper disposed along the rear surface of the upper teeth or the plurality of mandibular teeth, and preventing the tongue from passing through the auxiliary tooth bite part.

Also, the auxiliary tray may include one or more auxiliary spacers that are formed to protrude from the auxiliary tooth engagement part to space the plurality of upper teeth and the plurality of mandibular teeth.

Other specific details of the invention are included in the detailed description and drawings.

The oral protection device according to an embodiment of the present invention provides an oral protection device due to involuntary mandibular movement due to nerve stimulation during tracheal intubation of a tracheal intubation tube or during surgery performed in an upright or prone state under general anesthesia, tracheal intubation tube or teeth , it can prevent damage to oral structures such as the tongue.

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 following description.

1 is a plan perspective view showing an oral protection device according to a first embodiment of the present invention.

Figure 2 is a bottom perspective view showing the oral protection device according to the first embodiment of the present invention.

Figure 3 is a schematic view showing a state in which the tracheal intubation tube is supported on the tube guide of the oral protection device according to the first embodiment of the present invention.

Figure 4 is a schematic view showing a state in which the tracheal intubation tube supported on the tube guide of the oral protection device according to the first embodiment of the present invention is fixed by a fixing string.

5 is a perspective view showing an oral protection device according to a second embodiment of the present invention.

6 is a perspective view showing an oral protection device according to a third embodiment of the present invention.

7 is a perspective view showing an oral protection device according to a fourth embodiment of the present invention.

8 is a perspective view showing an oral protection device according to a fifth embodiment of the present invention.

9 is a perspective view showing an oral protection device according to a sixth embodiment of the present invention.

Advantages and features of the present invention and methods of 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 those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly specifically defined.

The present invention relates to the tracheal intubation tube (1), teeth, tongue, etc. due to involuntary mandibular movement due to nerve stimulation during tracheal intubation of the tracheal intubation tube (1) or surgery performed in an upright or prone state under general anesthesia. It relates to an oral protection device that can prevent damage to the oral structure.

Prior to the description of the present invention, in the embodiment, components having the same configuration are typically described in the first embodiment using the same reference numerals, and in other embodiments, configurations different from those of the first embodiment will be described. decide to do

In addition, in the present invention, the organs, maxillary teeth, mandible teeth, teeth, and tongue are the organs of the patient, maxillary teeth, mandibular teeth, teeth, and tongues.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan perspective view showing an oral protection device according to a first embodiment of the present invention, Figure 2 is a bottom perspective view showing an oral protection device according to a first embodiment of the present invention, Figure 3 is the first of the present invention A schematic diagram showing a state in which the tracheal intubation tube 1 is supported on the tube guide 30 of the oral protection device according to the embodiment, Figure 4 is the tube guide 30 of the oral protection device according to the first embodiment of the present invention It is a schematic diagram showing a state in which the tracheal intubation tube (1) supported on the trachea is fixed by the fixing string (50).

1 to 2 , the oral protection device according to the first embodiment of the present invention includes a tray 10 , a spacer 20 and a tube guide 30 .

The tray 10 includes a tooth engagement portion 11 to which a plurality of maxillary teeth or a plurality of mandibular teeth are bitten. Here, the tooth engagement part 11 may be formed in a shape corresponding to a plurality of upper teeth or a plurality of mandibular teeth.

An elastic material, an impression material, and gauze may be accommodated inside the tray 10 . Here, the elastic material may be rubber, silicone, or plastic. In addition, the impression material is a material used for various dental procedures, and one of impression compound, wax and gypsum, alginate, resin, and rubber type impression material may be used.

The tray 10 may include a tooth cover portion 12 disposed along the front surface of the plurality of maxillary teeth or the plurality of mandibular teeth. The tooth cover part 12 may be connected along the front surface of the tray 10 , and may serve to cover the front surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth. The tooth cover part 12 may be formed in a shape corresponding to the front surface of the plurality of maxillary teeth or the plurality of mandibular teeth.

The tray 10 is disposed along the rear surface of the plurality of maxillary teeth or the plurality of mandibular teeth, and may include a stopper 13 for preventing the tongue from falling into the tooth bite part 11 . These stoppers 13 may be connected along the rear surface of the tray 10 . The stopper 13 may be formed in a shape corresponding to the rear surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth.

The tray 10 may include any one of an elastic material, a soft material, and a thermoplastic plastic. Accordingly, when a plurality of upper teeth or a plurality of mandibular teeth are bitten in the tray 10 , the tray 10 may be deformed into a shape corresponding to the plurality of upper teeth or a plurality of mandibular teeth.

The spacer 20 is formed to protrude from the tooth engagement part 11, and serves to space a plurality of upper teeth and a plurality of mandibular teeth. For example, when the tooth engaging portion 11 is bitten by a plurality of upper teeth, the spacer 20 is formed to protrude from the tooth engaging portion 11 toward the plurality of mandibular teeth. In addition, when the tooth engaging portion 11 is bitten by a plurality of mandibular teeth, the spacer 20 is formed to protrude from the tooth engaging portion 11 toward the plurality of maxillary teeth.

As a plurality of maxillary teeth and a plurality of mandibular teeth are maintained spaced apart by these spacers 20, during tracheal intubation of the tracheal intubation tube (1) or surgery performed in an upright or prone state under general anesthesia , it is possible to prevent damage to the oral structures such as the tracheal intubation tube 1, teeth, and tongue due to the involuntary mandibular movement of closing the patient's mouth due to nerve stimulation.

The spacer 20 may be formed to protrude at a position engaged with the molars in the tooth interlocking part 11 . In terms of human body structure, the length of the front teeth is relatively larger than the length of the molars. Therefore, even if the height of the spacer 20 is formed to a length in which the molars are spread relatively smaller than the width in which the incisors are widened, it is possible to prevent damage to the oral structures such as the tracheal intubation tube 1, teeth, and tongue.

The spacer 20 may be configured as a pair. Such a pair of spacers 20 may be formed to protrude at positions engaged with both molars in the tooth interlocking portion 11, respectively.

The spacer 20 may include any one of an elastic material, a soft material, and a thermoplastic plastic. Accordingly, when the patient's involuntary mandibular movement is made, the shock applied by the spacer 20 to the plurality of maxillary teeth or the plurality of mandibular teeth may be buffered.

2 and 3, the tube guide 30 is provided on the tooth cover portion 12, and serves to support the tracheal intubation tube 1 inserted into the trachea.

A partially cut cutout 31 may be formed in one region of the tube guide 30 . When the tracheal intubation tube 1 is inserted into the incision 31 , the tube guide 30 may be fixed in close contact with the outer peripheral surface of the tracheal intubation tube 1 by an elastic force. The cutout 31 may have a shape cut in a radial direction from the center of the tube guide 30 .

The oral protection device according to the first embodiment of the present invention may further include a wing portion 40 and a fixing strap (50).

As shown in FIG. 4 , the wing portion 40 is coupled to the tube guide 30 , and has a fixing strap insertion hole 41 . The wing portion 40 may be formed in a ring shape, and a fixing string insertion hole 41 may be formed in the ring shape. The wing unit 40 may be configured as a pair, but the present invention is not particularly limited thereto, and the wing unit 40 may be composed of one or more pairs.

The fixing string 50 may pass through the fixing string insertion hole 41 of the wing unit 40 to fix the tracheal intubation tube 1 coupled to the tube guide 30 . Specifically, after passing the fixing string 50 through the fixing string insertion hole 41 of the wing unit 40 , both ends of the fixing string 50 in a state in which the tracheal intubation tube 1 is tightened with the fixing string 50 . By bundling, it is possible to fix the tracheal intubation tube (1).

Hereinafter, the operation of the oral protection device according to the first embodiment of the present invention will be described.

First, the operator bites the tray 10 on the plurality of maxillary teeth or the plurality of mandibular teeth of the patient.

At this time, the tooth engagement part 11 is bitten by the plurality of maxillary teeth or the plurality of mandibular teeth of the patient, and the tooth cover part 12 covers the front surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth, and the stopper 13 ) covers the rear surface of the plurality of maxillary teeth or the plurality of mandibular teeth. Here, the stopper 13 prevents the tongue from coming over to the tooth bite part 11 .

At the same time, the spacer 20 separates the plurality of upper teeth and the plurality of mandibular teeth.

Next, the tracheal intubation tube 1 is inserted into the cutout 31 of the tube guide 30 . At this time, the tube guide 30 may be fixed in close contact with the outer peripheral surface of the tracheal intubation tube 1 by an elastic force.

Next, after passing the fixing string 50 through the fixing string insertion hole 41 of the wing unit 40 , both ends of the fixing string 50 in a state in which the tracheal intubation tube 1 is tightened with the fixing string 50 . Tie it to fix the tracheal intubation tube (1).

Next, during tracheal intubation of the tracheal intubation tube (1) or under general anesthesia, the operation performed in the upright or prone state is performed.

At this time, when the patient involuntarily moves the mandible due to nerve stimulation, the spacer 20 separates the plurality of maxillary teeth and the plurality of mandibular teeth, so that the tracheal intubation tube 1, teeth, tongue, etc. It can prevent damage to the oral structures.

5, the oral protection device according to the second embodiment of the present invention may further include a plurality of first snap buttons 60 and second snap buttons 70, unlike the first embodiment. have.

The plurality of first snap buttons 60 and second snap buttons 70 serve to detachably couple the tooth cover unit 12 and the tube guide 30 .

The plurality of first snap buttons 60 may be arranged along the circumference of the tooth cover portion 12 .

The second snap button 70 is coupled to the tube guide 30 , and is selectively detachable from the plurality of first snap buttons 60 . Accordingly, by selectively coupling the second snap button 70 to the plurality of first snap buttons 60 , the position at which the tube guide 30 is coupled to the tooth cover unit 12 can be selectively adjusted.

For example, when the second snap button 70 is coupled to the first snap button 60 adjacent to the molars among the plurality of first snap buttons 60, the tube guide 30 is coupled to a position adjacent to the molars. The tracheal intubation tube (1) is inserted into the trachea through a position adjacent to the molars through the tube guide (30).

In addition, when the second snap button 70 is coupled to the first snap button 60 adjacent to the front teeth among the plurality of first snap buttons 60, the tube guide 30 is coupled to a position adjacent to the front teeth, The tracheal intubation tube (1) is inserted into the trachea through a tube guide (30) through a position adjacent to the incisors.

As shown in FIG. 6 , the oral protection device according to the third embodiment of the present invention further includes an auxiliary tray 80 , unlike the first embodiment.

The auxiliary tray 80 includes an auxiliary tooth engaging portion 81 to which any one of a plurality of maxillary teeth or a plurality of mandibular teeth not bitten by the tray 10 is bitten. Here, the auxiliary tooth engaging portion 81 may be formed in a shape corresponding to a plurality of upper teeth or a plurality of mandibular teeth.

An elastic material, an impression material, and gauze may be accommodated in the auxiliary tray 80 .

The auxiliary tray 80 may include an auxiliary tooth cover part 82 disposed along the front surface of any one of a plurality of maxillary teeth or a plurality of mandibular teeth that are not bitten by the tray 10 . The auxiliary tooth cover part 82 may be connected along the front surface of the auxiliary tray 80 , and may serve to cover the front surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth. The auxiliary tooth cover part 82 may be formed in a shape corresponding to the front surface of the plurality of maxillary teeth or the plurality of mandibular teeth.

The auxiliary tray 80 is disposed along the rear surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth, and may include an auxiliary stopper 13 that prevents the tongue from falling into the tooth bite part 11 . The auxiliary stopper 13 may be connected along the rear surface of the auxiliary tray 80 . The auxiliary stopper 13 may be formed in a shape corresponding to the rear surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth.

The auxiliary tray 80 may include any one of an elastic material, a soft material, and a thermoplastic plastic. Accordingly, when a plurality of upper teeth or a plurality of mandibular teeth are bitten in the auxiliary tray 80 , the auxiliary tray 80 may be deformed into a shape corresponding to the plurality of upper teeth or a plurality of mandibular teeth.

As shown in FIG. 7 , the oral protection device according to the fourth embodiment of the present invention further includes an auxiliary spacer 90 , unlike the third embodiment.

The auxiliary spacer 90 is formed to protrude from the auxiliary tooth engaging portion 81, and serves to space the plurality of upper teeth and the plurality of mandibular teeth. For example, when the auxiliary tooth engaging portion 81 is bitten by a plurality of maxillary teeth, the auxiliary spacer 90 is formed to protrude from the auxiliary tooth engaging portion 81 toward the plurality of mandibular teeth. In addition, when the auxiliary tooth engaging portion 81 is bitten by a plurality of mandibular teeth, the auxiliary spacer 90 is formed to protrude from the auxiliary tooth engaging portion 81 toward the plurality of maxillary teeth.

The auxiliary spacer 90 and the spacer 20 may be displaced from each other. For example, the auxiliary spacer 90 may be formed to protrude at a position engaged with the incisors or canines in the auxiliary tooth engaging portion 81 , and the spacer 20 may be engaged with the molars in the teeth engaging portion 11 . It may be formed to protrude at the location. Accordingly, the auxiliary spacer 90 separates the plurality of maxillary teeth and the plurality of mandibular teeth at the incisor or canine position, and the spacer 20 separates the plurality of maxillary teeth and the plurality of mandibular teeth at the molar position. That is, in a state in which two points of a plurality of maxillary teeth and a plurality of mandibular teeth are supported by the auxiliary spacer 90 and the spacer 20 , the plurality of maxillary teeth and the plurality of mandibular teeth are spaced apart.

The auxiliary spacer 90 may be configured as a pair. The pair of auxiliary spacers 90 may be formed to protrude respectively at positions engaged with both molars in the auxiliary tooth engagement part 81 .

The auxiliary spacer 90 may include any one of an elastic material, a soft material, and a thermoplastic plastic. Accordingly, when the patient's involuntary mandibular movement is made, the shock applied by the auxiliary spacer 90 to the plurality of maxillary teeth or the plurality of mandibular teeth may be buffered.

As shown in Figure 8, the oral protection device according to the fifth embodiment of the present invention, unlike the third embodiment, the tray 10 and the auxiliary tray 80 may be integrally connected.

In the present embodiment, the tray 10 and the auxiliary tray 80 may be interconnected with a portion adjacent to the molar teeth of the tray 10 and a portion adjacent to the molar teeth of the auxiliary tray 80 .

As shown in Figure 9, the oral protection device according to the sixth embodiment of the present invention, unlike the fourth embodiment, the tray 10 and the auxiliary tray 80 may be integrally connected.

According to the present invention, the oral protection device according to an embodiment of the present invention provides involuntary mandibular movement due to nerve stimulation during tracheal intubation of the tracheal intubation tube 1 or during surgery performed in an upright or prone state under general anesthesia. Due to this, it is possible to prevent damage to the oral structures such as the tracheal intubation tube 1, teeth, and tongue.

As mentioned above, although embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can realize that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims

a tray comprising a tooth bite to which a plurality of maxillary teeth or a plurality of mandibular teeth are bitten; and

Is formed to protrude from the tooth bite, oral protection device comprising one or more spacers spaced apart the plurality of the upper teeth and the plurality of mandibular teeth.
According to claim 1,

The tray is

Further comprising a tooth cover portion disposed along the front surface of the plurality of maxillary teeth or the plurality of mandibular teeth, oral care device.
3. The method of claim 2,

Provided in the tooth cover portion, further comprising a tube guide for supporting the tracheal intubation tube inserted into the trachea, oral protection device.
4. The method of claim 3,

a wing unit coupled to the tube guide and having a fixing string insertion hole; and

Oral protection device including a fixing strap for fixing the tracheal intubation tube coupled to the tube guide through the fixing strap insertion hole.
4. The method of claim 3,

a plurality of first snap buttons arranged along the periphery of the tooth cover part; and

The oral care device further comprising a second snap button coupled to the tube guide and selectively detachable from the plurality of first snap buttons.
According to claim 1,

The tray is

and a stopper disposed along a rear surface of the plurality of maxillary teeth or the plurality of mandibular teeth, the stopper further comprising a stopper for preventing the tongue from passing over the tooth bite.
The method of claim 1,

The oral care device further comprising an auxiliary tray comprising an auxiliary tooth engaging portion to which any one of a plurality of maxillary teeth or a plurality of mandibular teeth not bitten by the tray is bitten.
8. The method of claim 7,

The auxiliary tray,

Further comprising an auxiliary tooth cover portion disposed along the front surface of any one of a plurality of maxillary teeth or a plurality of mandibular teeth that are not bitten by the tray.
8. The method of claim 7,

The auxiliary tray,

The oral care device further comprising an auxiliary stopper disposed along the rear surface of the plurality of maxillary teeth or the plurality of mandibular teeth not bitten by the tray, the auxiliary stopper preventing the tongue from passing through the auxiliary tooth bite portion.
8. The method of claim 7,

The auxiliary tray is formed to protrude from the auxiliary tooth interlocking portion, the oral protection device comprising one or more auxiliary spacers to space the plurality of upper teeth and the plurality of mandibular teeth.
11. The method of claim 10,

The spacer and the auxiliary spacer are disposed to be shifted from each other, oral protection device.
11. The method of claim 10,

The tray, the auxiliary tray, the spacer and the auxiliary spacer,

An oral care device comprising any one of an elastic material, a soft material, and a thermoplastic plastic.
a tray comprising a tooth bite to which a plurality of maxillary teeth or a plurality of mandibular teeth are bitten;

One or more spacers formed to protrude from the tooth engagement portion to space the plurality of upper teeth and the plurality of mandibular teeth; and

An oral care device connected to the tray and comprising an auxiliary tray including an auxiliary tooth biting part to which any one of a plurality of maxillary teeth or a plurality of mandibular teeth not bitten by the tray is bitten.
14. The method of claim 13,

The tray further comprises a tooth cover portion disposed along the front surface of the plurality of upper teeth or the plurality of mandibular teeth,

The auxiliary tray, the oral care device further comprising an auxiliary tooth cover disposed along the front surface of any one of the plurality of maxillary teeth or the plurality of mandibular teeth that are not bitten by the tray.
15. The method of claim 14,

Provided in the tooth cover portion, further comprising a tube guide for supporting the tracheal intubation tube inserted into the trachea, oral protection device.
16. The method of claim 15,

a wing portion coupled to the tube guide and having a fixing string insertion hole; and

Oral protection device including a fixing strap for fixing the tracheal intubation tube coupled to the tube guide through the fixing strap insertion hole.
16. The method of claim 15,

a plurality of first snap buttons arranged along the periphery of the tooth cover part; and

The oral care device further comprising a second snap button coupled to the tube guide and selectively detachable from the plurality of first snap buttons.
14. The method of claim 13,

The tray is disposed along the rear surface of the plurality of maxillary teeth or the plurality of mandibular teeth, and further comprises a stopper for preventing the tongue from passing through the tooth bite,

The auxiliary tray is disposed along the rear surfaces of the plurality of maxillary teeth or the plurality of mandibular teeth that are not bitten by the tray, and further comprises an auxiliary stopper for preventing the tongue from passing through the auxiliary tooth bite part.
14. The method of claim 13,

The auxiliary tray is formed to protrude from the auxiliary tooth interlocking portion, the oral protection device comprising one or more auxiliary spacers to space the plurality of upper teeth and the plurality of mandibular teeth.
20. The method of claim 19,

Oral protection device, characterized in that the spacer and the auxiliary spacer is disposed to be shifted from each other.
20. The method of claim 19,

The tray, the auxiliary tray, the spacer and the auxiliary spacer,

An oral protection device comprising any one of an elastic material, a soft material, and a thermoplastic plastic.