JP2012249977A - Mouthpiece for endoscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mouthpiece for an endoscope, which has a structure to be stably mounted on a subject who uses a denture or has a broken central incisor and lateral incisor, etc.SOLUTION: A mouthpiece 10 for an endoscope is soaked in hot water thereby to previously soften holding parts 20, 21 made of a modeling compound. Then, the mouthpiece 10 for an endoscope is put into a mouth while a subject wears a denture, and the subject chews the holding parts 20, 21. Then, an artificial tooth being a right first premolar 24 digs into the upper right part 20b of the holding part 20 thereby to form the tooth form such as a tooth form 22. The mouthpiece 10 for an endoscope is easily held by the tooth form 22, etc., so that the subject wearing a denture receives an inspection without biting hard in a conventional manner. Even when the subject has a broken central incisor, etc., the tooth form corresponding to the broken state is formed, so that the mouthpiece 10 for an endoscope is easily held by biting.

Description

  The present invention relates to an endoscope mouthpiece, and more particularly, to an endoscope mouthpiece having a structure suitable for a subject using a denture, or a subject lacking a central incisor or a side incisor.

  The endoscope mouthpiece is generally held by the subject biting a portion between the two flanges in a state of being inserted into the subject's mouth. Further, a through hole for inserting the endoscope is formed, and has a function of guiding the endoscope in an appropriate direction when the endoscope is inserted into the through hole and fed into the body cavity. Such an endoscope mouthpiece is usually made of a resin, but since it has a smooth surface, it is often difficult to bite. Therefore, various improvements have been made to facilitate biting and holding the endoscope mouthpiece.

  FIG. 5 is a front view showing an endoscope mouthpiece according to the prior art. In FIG. 5, 30 is an endoscope mouthpiece, 31 is a second housing part, 32 is a first housing part, 33 is an elastic deformation part, and 34 is an endoscope insertion part.

  FIG. 5 is an endoscope mouthpiece described in JP-A-2006-280628. A concave first accommodation which can accommodate a part of teeth of the subject's upper jaw and lower jaw or a part of upper and lower jaw gums with the endoscope insertion portion 34 of the endoscope mouthpiece 30 interposed therebetween. The part 32 and the second accommodating part 31 are configured to be connected via an elastic deformation part 33 so as to apply an elastic force in a direction opposite to the direction in which the biting pressure is applied. With this configuration, when the subject bites, there is a bite response, so that the biting force of the subject decreases as the examination time elapses, and the endoscope mouthpiece 30 is detached from the oral cavity. Can be prevented.

  However, in the case of a subject wearing a denture, when the mouthpiece for an endoscope is bitten, air may enter between the denture base and the palate or gingiva and the denture base may rise. In some cases, the denture may capsize and leave the oral cavity. Even if the structure shown in FIG. 5 is adopted, there is almost no difference in the occlusal pressure applied to the denture, so it cannot be solved even if an elastic force is applied to the endoscope mouthpiece. Furthermore, in the case of a subject lacking a central incisor or a side incisor, there is a problem in biting the endoscope mouthpiece itself, so it is very difficult to bite the endoscope mouthpiece stably. Is accompanied.

JP 2006-280628 A

  In order to solve the above problems, the present invention provides an endoscope mouthpiece having a structure that can be stably worn by a subject using a denture, or a subject lacking a central incisor or a side incisor. The purpose is to provide.

  The invention according to claim 1 is an endoscope mouthpiece that is inserted into the oral cavity and can be sandwiched between the upper teeth and the lower teeth, and one of the upper teeth and the lower teeth or An endoscope mouthpiece characterized in that it is provided at a site where both are in contact with each other and has a holding portion made of a dental impression material.

  The invention according to claim 2 is the invention according to claim 1, further comprising a recess formed in a portion where the upper tooth and the lower tooth contact each other, and the holding portion is provided in the recess. It is the mouthpiece for endoscopes characterized by the above-mentioned.

  According to a third aspect of the present invention, in the second aspect of the present invention, the recess is formed at a site where the upper and lower middle incisors, side incisors, canines and first premolars abut. An endoscope mouthpiece characterized by the above.

  The invention according to claim 4 is the mouthpiece for endoscope according to any one of claims 1 to 3, wherein the dental impression material is thermoplastic. is there.

According to the first aspect of the present invention, since the holding portion made of the dental impression material is provided at the portion where one or both of the upper teeth and the lower teeth are in contact, the subject can see the endoscope mouthpiece. A tooth profile such as a denture is formed on the holding portion when the tooth is chewed. Further, since the dental impression material is for obtaining an accurate tooth profile, the denture and the holding part are in close contact with each other without any gap and are in a state of adsorbing each other.
Therefore, it becomes easy to hold the mouthpiece for endoscope by this tooth shape, and the subject wearing the denture can be examined without chewing as before. In addition, even if the subject's middle incisor or side incisor is missing, a tooth profile corresponding to the lack of the holding part is formed, so chew and hold the endoscope mouthpiece Becomes easier. In addition, the dental impression material is premised on use in the oral cavity during dental treatment and the like, and is highly safe for the subject.

  According to invention of Claim 2, it becomes easy to form a dental impression material as a holding | maintenance part of a predetermined | prescribed shape and a magnitude | size in a predetermined | prescribed site | part by providing a recessed part.

  According to the invention described in claim 3, since the occlusal pressure is applied to the holding portion with artificial teeth from the central incisor to the first premolar of the denture, the denture base on the back side of the oral cavity is separated from the palate or gingiva. It becomes difficult to hold the mouthpiece for endoscope more stably than the conventional structure which is held by the central incisor and the side incisor.

  According to the invention described in claim 4, the used mouthpiece for heating is reused by heating the used endoscope mouthpiece with hot water, etc., and flattening the tooth profile of the holding portion with a spatula or a finger. Can do. In addition, if the flattening operation is performed immediately after boiling and sterilization, it is not necessary to heat again, so the management of the endoscope mouthpiece becomes easy.

It is figure (1) which shows the mouthpiece for endoscopes before providing a holding | maintenance part, (a) is a front view, (b) is a rear view. It is figure (2) which shows the mouthpiece for endoscopes before providing a holding | maintenance part, (c) is a top view, (d) is a left view. It is a figure (1) which shows the mouthpiece for endoscopes concerning an embodiment of the invention, (a) is a top view and (b) is a rear view. It is sectional drawing which shows the usage method of the mouthpiece for endoscopes which concerns on embodiment of this invention, (a) is the biting state, (b) is the state with which the tooth profile remained, (c) crushed the tooth profile Indicates the state. It is a front view which shows the mouthpiece for endoscopes which concerns on a prior art.

  Hereinafter, an endoscope mouthpiece according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram (1) illustrating an endoscope mouthpiece before providing a holding portion, in which (a) is a front view and (b) is a rear view. In FIG. 1, 10 is an endoscope mouthpiece, 11a is a through hole, 12 is an inner flange, 13 is an outer flange, 14 is a lower half part, 15 is an upper half part, 16 is a right dentition clamping part, 17 is The left dentition pinching portion, 18a is an upper left concave portion, 18b is an upper right concave portion, 19a is a lower left concave portion, and 19b is a lower right concave portion. FIG. 2 is a diagram (2) showing the endoscope mouthpiece before the holding portion is provided, (c) is a plan view, and (d) is a left side view. In FIG. 2, 11 is a cylindrical part, 18c is a front upper recessed part, and another code | symbol shows the same thing as FIG. In the following description, it is assumed that the subject under endoscopy is wearing upper and lower dentures, but the endoscope mouthpiece according to the embodiment of the present invention has its own teeth. The present invention can also be applied to a subject having a problem, and can also be preferably applied to a subject who has malocclusion or lacks a central incisor.

  First, the structure of the endoscope mouthpiece before providing a holding portion made of a modeling compound that is a dental impression material will be described. An endoscope mouthpiece 10 according to an embodiment of the present invention is provided with an inner flange 12 and an outer flange 13 at both ends of a cylindrical portion 11, and further from the left and right sides of the cylindrical portion 11 to the inner flange 12 side, that is, the oral cavity. The structure is basically provided with a right dentition pinching portion 16 and a left dentition pinching portion 17 extending to the back side. Moreover, the right dentition pinching portion 16 and the left dentition pinching portion 17 are formed so as to abut from the left and right central incisors to the first premolars of the subject. In addition, although the right dentition pinching part 16 and the left dentition pinching part 17 may be formed so as to contact the left and right middle incisors to the second premolars, the first molars or more If it is formed so as to be in contact with the teeth located in the back of the oral cavity, it takes time to wear, and the function of holding the endoscope mouthpiece 10 in the oral cavity is not further improved. The second premolar is desirable.

  The cylindrical portion 11 is formed in a substantially oval shape whose cross section in a direction orthogonal to the central axis is horizontally long, and has an inner flange 12 positioned in the oral cavity during use and an outer flange 13 positioned outside the oral cavity during use. Provided in the department. Further, the upper and lower outer surfaces of the cylindrical portion 11 are formed with recesses formed integrally with recesses of a right tooth row sandwiching portion 16 and a left tooth row sandwiching portion 17 described later. The inner flange 12 regulates that the endoscope mouthpiece 10 is detached from the oral cavity by coming into contact with the teeth of the subject, and is formed so as to protrude from the end of the cylindrical portion 11 with the same width. Has been. The outer flange 13 restricts the entire endoscope mouthpiece 10 from entering the oral cavity by coming into contact with the lips and teeth of the subject. The outer flange 13 includes an upper half 15 extending above the cylindrical portion 11 and a lower half 14 extending below the cylindrical portion 11, and these portions are in contact with the lips of the subject. In this state, an endoscope (not shown) can be inserted in a predetermined direction.

  The right dentition pinching portion 16 is a portion that is bitten by the upper and lower dentitions on the right side of the subject. Further, an upper right concave portion 18b is formed on the upper surface of the right tooth row clamping portion 16 in order to provide a holding portion, and a lower right concave portion 19b is formed on the lower surface in order to similarly provide a holding portion. Is a portion bited by the upper and lower teeth on the right side of the subject. Further, an upper left concave portion 18a is formed on the upper surface of the left tooth row sandwiching portion 17 to provide a holding portion, and a lower left concave portion 19a is formed on the lower surface for the same purpose. As shown in FIG. 2 (c), the upper left recess 18a and the upper right recess 18b are continuous with the front upper recess 18c formed in the upper portion of the cylindrical portion 11, and constitute a single recess as a whole. Yes. Similarly, the lower left concave portion 19a and the lower right concave portion 19b are continuous with a concave portion c (not shown) formed in the lower portion of the cylindrical portion 11, and constitute a single concave portion as a whole.

  Next, a state in which a holding unit made of a modeling compound that is a dental impression material is provided will be described. FIG. 3 is a diagram (1) showing an endoscope mouthpiece according to an embodiment of the present invention, where (a) is a plan view and (b) is a rear view. In FIG. 3, 20 is a holding part, 20a is an upper left part, 20b is an upper right part, 20c is a front upper part, 21 is a holding part, 21a is a lower left part, 21b is a lower right part, and other symbols are the same as those in FIG. Indicates.

  As shown in FIG. 3 (a), the holding parts 20 and 21 are formed by the artificial teeth from the left and right central incisors to the first premolars of the subject wearing the dentures biting into close contact with the dentures. This is to facilitate the holding of the endoscope mouthpiece 10. That is, the holding unit 20 has an upper left portion 20a for attaching an artificial tooth shape such as a left first premolar tooth on the upper left recessed portion 18a, and an upper right portion 20b for attaching an artificial tooth shape such as a right first premolar tooth on the upper right recessed portion 18b. The front upper portion 20c is provided on the front upper concave portion 18c to form tooth shapes of artificial teeth such as left and right central incisors. Similarly, the holding part 21 is provided with a left lower part 21a, a right lower part 21b, and the like on concave parts such as a lower left concave part 19a and a lower right concave part 19b.

  The holding parts 20 and 21 are made of dental impression material. When the subject bites them, the holding parts 20 and 21 form teeth, and when performing endoscopy, the subject bites into the endoscope mouthpiece 10. Has the role of holding Although various types of dental impression materials can be used as the holding parts 20 and 21, it is desirable to use a modeling compound. The modeling compound contains materials such as kauri resin, hard wax, talc, and chalk, and has a thermoplasticity that softens when heated with hot water and hardens when it falls to a temperature around human body temperature. . In addition, when it is softened, if it is bitten with a tooth or a denture, it has a feature that it can adhere to the surface of the artificial tooth of the tooth or the denture and can take an accurate impression. Therefore, after holding the holding parts 20 and 21 with the denture, immediately cooled with water and biting the holding parts 20 and 21 again, the holding parts 20 and 21 are brought into close contact with the denture, and the endoscope mouthpiece 10 Can be held stably.

  Therefore, it is possible to undergo an endoscopic examination without applying a strong occlusal pressure to the cylindrical portion 11. In addition, since the modeling compound can repeatedly collect an accurate impression if it is reheated several tens of times, there is no need to replace the holding parts 20 and 21 for each subject. Further, since it is relatively easy to peel off from the concave portion such as the upper left concave portion 18a, the holding portions 20 and 21 are easily provided by sticking a dental impression material such as a modeling compound to the concave portion after a predetermined number of uses. be able to. Moreover, after using the holding parts 20 and 21, it is desirable to heat with hot water and crush the tooth profile with a finger or spatula to keep it flat. This is because if the surfaces of the holding portions 20 and 21 are made flat in advance, the subject to be used next will not bite the endoscope mouthpiece 10 having another person's tooth shape. It is because it stops feeling. Since only one of the holding portions 20 and 21 is effective, in order to facilitate the management of the endoscope mouthpiece 10, only one of them may be provided. In addition, it is possible to directly provide the holding portions 20 and 21 on the flat surface without forming the concave portion, but in order to make the thickness and size of the holding portions 20 and 21 predetermined, it is possible to provide the concave portion. Necessary.

  A method of using the endoscope mouthpiece according to the embodiment of the present invention will be described again. 4A and 4B are cross-sectional views showing a method for using the endoscope mouthpiece according to the embodiment of the present invention, in which FIG. 4A is a bitten state, FIG. 4B is a state where a tooth profile remains, and FIG. The state where the tooth profile is crushed is shown. In FIG. 4, 22 is a tooth profile, 23 is a restoration area | region, 24 is a right 1st premolar, 25 is a gingiva, The other code | symbol shows the same thing as FIG.

  First, the holding parts 20 and 21 are previously softened by immersing the endoscope mouthpiece 10 in hot water. Next, the subject puts the endoscope mouthpiece 10 into the oral cavity while wearing the denture, and bites the holding portions 20 and 21 as shown in FIG. Then, as shown in FIG. 4 (b), for example, an artificial tooth that is the right first premolar tooth 24 bites into the upper right part 20 b of the holding part 20 and has a tooth profile such as a tooth profile 22. If the endoscope mouthpiece 10 is held, the dental impression material that becomes the holding portions 20 and 21 does not need to be thick enough to contact the gum 25. When the holding parts 20 and 21 have tooth shapes, the endoscope mouthpiece 10 is cooled by being immersed in water or gradually cooled at room temperature. When the holding parts 20 and 21 are cooled to a temperature at which they are cured, the endoscope mouthpiece 10 is attached to the oral cavity of the subject and an endoscopic examination is performed. When the inspection is completed, the endoscope mouthpiece 10 is soaked in hot water to be softened, and the tooth shapes of the holding portions 20 and 21 are crushed with a finger or the like as shown in FIG. So that it is flat.

As described above, since the holding portions 20 and 21 made of the dental impression material are provided at the site where the denture from the central incisor to the first premolar contacts, when the subject bites the endoscope mouthpiece 10 A tooth profile such as a denture is formed on the holding portion. Further, since the dental impression material is for obtaining an accurate tooth profile, the denture and the holding part are in close contact with each other without any gap and are in a state of adsorbing each other.
Therefore, it becomes easy to hold the mouthpiece for endoscope 10 by this tooth shape, and the subject wearing the denture can be examined without chewing as before. In addition, even when the subject's middle incisor or side incisor is missing, a tooth profile corresponding to the lack of the holding portions 20 and 21 is formed, so that the mouthpiece 10 for endoscope is bitten. It becomes easy to hold with. In addition, the dental impression material is premised on use in the oral cavity during dental treatment and the like, and is highly safe for the subject. Further, since the concave portions such as the upper right concave portion 18b are provided, it becomes easy to form the dental impression material as the holding portions 20 and 21 having a predetermined shape and size in a predetermined portion. Furthermore, since occlusal pressure is applied to the holding portions 20 and 21 with artificial teeth from the central incisor to the first premolar, the denture base on the back side of the oral cavity and the palate or gum are difficult to separate, and the central incisor In addition, the endoscope mouthpiece can be held more stably than the conventional structure held by the side incisors. In addition, the holding parts 20 and 21 can be reused by heating the used endoscope mouthpiece with hot water or the like and crushing the tooth shapes of the holding parts 20 and 21 with a spatula or a finger to make them flat. Further, if the flattening operation is performed immediately after boiling and disinfection, it is not necessary to heat again, so the management of the endoscope mouthpiece 10 becomes easy.

DESCRIPTION OF SYMBOLS 10 Endoscope mouthpiece 11 Cylindrical part 11a Through-hole 12 Inner flange 13 Outer flange 14 Lower half part 15 Upper half part 16 Right dentition clamping part 17 Left dentition clamping part 18a Left upper part recessed part 18b Upper right part recessed part 18c Front upper recessed part 19a Lower left concave portion 19b Lower right concave portion 20 Holding portion 20a Upper left portion 20b Upper right portion 20c Front upper portion 21 Holding portion 21a Left lower portion 21b Right lower portion 22 Tooth shape 23 Restoration region 24 Right first premolar 25 Gingival 30 Endoscope mouthpiece 31 Second First receiving portion 33 Elastic deformation portion 34 Endoscope insertion portion

Claims (4)

In an endoscope mouthpiece that is inserted into the oral cavity and can be sandwiched between an upper tooth and a lower tooth,
An endoscope mouthpiece characterized in that it is provided at a portion where one or both of the upper tooth and the lower tooth are in contact with each other and has a holding portion made of a dental impression material. It is provided with a recess formed in each of the parts where the upper teeth and the lower teeth come into contact,
The endoscope mouthpiece according to claim 1, wherein the holding portion is provided in the concave portion.   The endoscope mouthpiece according to claim 2, wherein the concave portion is formed in a portion where the upper and lower middle incisors, side incisors, canine teeth and first premolars abut.   The endoscope mouthpiece according to any one of claims 1 to 3, wherein the dental impression material is thermoplastic.

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