JP5908624B1 - Byte block - Google Patents

Abstract

A bite block that can be easily and stably mounted. A bite block includes a vertical interdental cover body at one end in a bar-shaped bite block main body and an outer flange body at the other end. . The bite block main body 101 is disposed between the upper and lower front teeth in the wearer's mouth and has a length extending inward and outward of the mouth, and a groove-like through groove portion 102 is formed in the upper tooth receiving portion 101a. Yes. The upper and lower interdental cover body 103 is formed in a plate shape that extends from the left side portion and the right side portion at the end of the bite block main body 101. The left and right upper and lower interdental cover body 103 is formed in a shape that can cover the inner surfaces of the upper teeth and lower teeth, and the interval between them is greater than the left and right intervals of the upper and lower dentitions in the wearer. Widely formed. [Selection] Figure 1

Description

  The present invention relates to a bite block which is disposed between upper teeth and lower teeth when undergoing surgery or examination with the mouth open and prevents injuries in the mouth and damage to medical devices due to occlusion.

  Traditionally, bite blocks have been used to prevent injuries in the mouth and damage to medical devices due to occlusion, placed between the upper and lower teeth when undergoing surgery or examination with the mouth open . For example, Patent Literature 1 below discloses a bite block that is disposed between upper teeth and lower teeth and has locking recesses into which the upper teeth and lower teeth are respectively inserted.

JP 59-2751 A

  However, in the bite block described in Patent Document 1, since the shape of the locking recess is determined in advance, the shape, size and arrangement of the actual tooth of the wearer wearing the bite block There is a problem that they do not necessarily match and it is difficult to stably attach the byte blocks.

  The present invention has been made to address the above problems, and an object thereof is to provide a bite block that can be easily and stably mounted.

In order to achieve the above object, the present invention is characterized in that a bite block body that is disposed between the front teeth of the upper jaw and the front teeth of the lower jaw and extends from the inside of the mouth to the outside, and a portion of the bite block body from the inside of the mouth to the upper teeth and the respective posterior teeth side of the left and right shape to cover the inner surfaces of the lower teeth and a vertical interdental cover body extending in a plate shape, the upper and lower teeth between the cover member is made of an elastic member to be wearer of the upper The distance between the left and right upper and lower interdental cover bodies is formed wider than the distance between the left and right tooth rows facing the upper and lower interdental cover bodies so as to press the inner surfaces of the teeth and the lower teeth, respectively. is there. In this case, as the elastic member, various elastomers, for example, thermosetting elastomer (for example, rubber material) or thermoplastic elastomer (for example, styrene resin, olefin resin, vinyl chloride resin, urethane resin, amide resin). Can be used alone or in appropriate combination.

  According to the feature of the present invention configured as described above, the bite block is formed so that the interval between the left and right upper and lower interdental cover bodies is wider than the interval between the left and right tooth rows, so that the upper and lower interdental cover bodies are It is pressed against each inner surface of the teeth and lower teeth and elastically deforms. As a result, the bite block is held in the inner portions of the upper and lower teeth by the reaction force when the left and right upper and lower interdental cover bodies elastically deform inward along the inner surfaces of the upper and lower teeth. Therefore, it can be easily and stably mounted regardless of the shape, size and arrangement of the wearer's teeth.

Another feature of the present invention is that, in the bite block, the upper and lower interdental cover body is formed in a shape that covers each inner surface of each gum of the upper teeth and lower teeth . According to this, the bite block is held in each inner portion of the upper and lower teeth by the reaction force when elastically deforming inward with the upper and lower interdental cover body covering the inner surface of the wearer's gums. Therefore, it can be easily and stably mounted regardless of the shape, size and arrangement of the wearer's teeth.

Another feature of the present invention is that, in the bite block, an insertion notch for inserting a medical instrument into the body is formed at the distal end of the upper and lower interdental cover body. According to this, the bite block can insert the medical instrument into the body through the insertion notch.

Further, according to the present invention , in the bite block, the upper and lower interdental cover body may be formed of a curved surface that swells toward the inner surfaces of the upper teeth and lower teeth. According to this, since the bite block is formed in a curved surface in which the upper and lower interdental cover body swells toward the inner surfaces of the upper teeth and lower teeth, the reaction force is also applied to each gum direction of the upper teeth and lower teeth. The upper and lower interdental cover body can be brought into close contact with the inner surfaces of the upper and lower teeth with higher accuracy. In addition, since the upper and lower interdental cover body is formed in a concave curved surface with respect to the tongue, the bite block can be positioned in the original position and shape without pressing the tongue, and when the tongue contacts A feeling of incongruity can be suppressed and a feeling of use can be improved.

According to the present invention, in the bite block, the bite block main body can be formed so that the length in the inner and outer direction of the mouth is 20 mm or more. According to this, since the length of the bite block in the bite block body in the inner and outer directions of the mouth is formed to be 20 mm or more, the bite block can be used for a wearer having a wide mouth shape and an oral shape. it can.

  Another feature of the present invention is that in the bite block, the bite block main body is formed with a groove-like through groove portion in a state of penetrating along the inner and outer directions to the mouth.

  According to another feature of the present invention configured as described above, the bite block is formed with a through groove portion having a concave shape in a state of penetrating the bite block body in the inner and outer directions of the mouth. A medical instrument (for example, a tracheal tube) to be inserted into the body through the mouth of the medical instrument can be sandwiched and held and the medical instrument can be easily attached and detached. In addition, since the bite block can be bent and deformed so that the through-groove portion is crushed from the left and right directions by the through-groove portion, the insertion work into the mouth of the upper and lower interdental cover body can be facilitated.

  Another feature of the present invention resides in that, in the bite block, the upper and lower interdental cover body has a notch formed at an edge opposite to the through groove.

  According to another feature of the present invention configured as described above, the bite block has a notch formed on the side opposite to the through groove in the central portion in the left-right direction of the upper and lower interdental cover body. Since the main body and the upper and lower interdental cover body are easily bent and deformed, the operation of inserting the upper and lower interdental cover body into the mouth can be performed more easily.

  Another feature of the present invention is that the bite block further protrudes from the outer end in the vicinity of the opening of the through groove at the outer end opposite to the inner side of the bite block main body. It is that a piece is formed.

  According to another feature of the present invention configured as described above, the bite block is projected from the outer end in the vicinity of the opening of the through groove portion at the outer end opposite to the mouth inner side of the bite block main body. Since the overhanging piece is formed, it is easy to perform operations such as positioning and taking in and out of the bite block in the mouth by gripping and operating the overhanging piece. Further, the bite block can be attached more firmly by fixing (for example, tying with a tape or string) a medical instrument fitted in the through groove portion with respect to the protruding piece.

  Another feature of the present invention is that, in the bite block, an outer flange body is formed in a state in which the bite block protrudes in a flange shape from the outer end of the bite block body opposite to the inner side of the mouth. .

  According to another feature of the present invention configured as described above, the bite block is formed with an outer flange body in a state of projecting in a flange shape from the outer end of the bite block body opposite to the inner side of the mouth. By disposing the outer flange body on the outer side of the lips, leakage of secretions such as saliva from the mouth can be prevented and entry of foreign matters into the mouth can be prevented. The bite block can also prevent leakage of secretions and entry of foreign matter into the mouth by sandwiching a water absorbent such as gauze or felt between the outer flange and the peripheral portion of the mouth. The bite block can regulate the amount of insertion of the bite block main body and the upper and lower interdental cover body into the mouth by arranging the outer flange body outside the lips.

  Another feature of the present invention is that in the bite block, the bite block main body is formed such that an upper tooth receiving portion facing the front teeth of the upper jaw and a lower tooth receiving portion facing the front teeth of the lower jaw are formed in a plane. It is in.

  According to another feature of the present invention configured as described above, the bite block has an upper tooth receiving portion facing the front teeth of the upper jaw and a lower tooth receiving portion facing the front teeth of the lower jaw formed in a plane on the bite block main body, respectively. Therefore, when the upper teeth and lower teeth chew the bite block body, the upper and lower front teeth and each tooth adjacent to each front tooth (for example, each tooth adjacent to each front tooth) It is possible to protect the teeth and the bite block main body by generating an equal occlusal force on the side incisors.

It is a front perspective view showing the outline of the appearance composition of the bite block concerning one embodiment of the present invention. It is a back perspective view which shows the outline of the external appearance structure of the bite block shown in FIG. It is a front view which shows the outline of the external appearance structure of the bite block shown in FIG. It is a left view which shows the outline of the external appearance structure of the byte block shown in FIG. It is a right view which shows the outline of the external appearance structure of the bite block shown in FIG. It is a top view which shows the outline of the external appearance structure of the byte block shown in FIG. It is a bottom view which shows the outline of the external appearance structure of the bite block shown in FIG. It is a rear view which shows the outline of the external appearance structure of the bite block shown in FIG. It is the rear view which showed the elastic deformation state which crushed the bite block main body in the bite block shown in FIG. 8 from the left-right direction. It is a side view which shows the state which mounted | worn and bite the bite block shown in FIG. 1 in a wearer's mouth. (A) (B) has shown the state which mounted | wore the wearer's mouth with the bite block shown in FIG. 1, (A) is the top view seen from the upper direction of an upper tooth, (B) is a lower tooth It is a top view from above. It is a perspective view which shows the outline of the external appearance structure of the bite block which concerns on the modification of this invention.

  Hereinafter, an embodiment of a byte block according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of an external configuration of a bite block 100 according to the present invention. FIG. 2 is a rear perspective view schematically showing the external configuration of the bite block 100 shown in FIG. FIG. 3 is a front view showing an outline of the external configuration of the bite block 100 shown in FIG. FIG. 4 is a left side view showing an outline of the external configuration of the bite block 100 shown in FIG. FIG. 5 is a right side view showing an outline of the external configuration of the bite block 100 shown in FIG. FIG. 6 is a plan view schematically showing the external configuration of the bite block 100 shown in FIG. FIG. 7 is a bottom view showing an outline of the external configuration of the bite block 100 shown in FIG. FIG. 8 is a rear view schematically showing the external configuration of the byte block 100 shown in FIG.

  Note that the drawings referred to in this specification are schematically shown by exaggerating some of the components in order to facilitate understanding of the present invention. For this reason, the dimension, ratio, etc. between each component may differ. In the drawings referred to in this specification, the round shape of each part of the bite block is represented by a thin line. The bite block 100 is an instrument that is disposed between the upper teeth and the lower teeth when treatment or diagnosis is performed with the mouth open, and prevents injuries in the mouth and damage to medical instruments due to occlusion.

(Configuration of byte block 100)
The byte block 100 includes a byte block main body 101. The bite block main body 101 is a portion for preventing occlusion of the upper teeth and lower teeth by being arranged between the upper teeth of the upper jaw and the front teeth of the lower jaw in the mouth of the wearer wearing the bite block 100, It is formed in a rod shape that extends inward and outward. More specifically, the bite block main body 101 is made of a material that is elastically deformed by the bite force of the wearer, and the upper tooth receiving portion 101a and the lower tooth receiving portion are opposed to the upper and lower front teeth. 101b. In this case, the material constituting the bite block main body 101 includes a resin material (for example, a silicone material) and a rubber material. Here, the front teeth are configured to include at least one of middle incisors, side incisors and canines.

  The upper tooth receiving portion 101a and the lower tooth receiving portion 101b are portions that receive the upper and lower front teeth of the wearer, and in the present embodiment, are configured by planes extending in parallel to each other. The upper tooth receiving portion 101a and the lower tooth receiving portion 101b are connected by two side portions 101c extending in a planar shape extending in the vertical direction of the wearer's mouth after each end portion is bent in a right angle direction. Yes. The bite block main body 101 is formed of a solid material filled in an inner region surrounded by the upper tooth receiving portion 101a, the lower tooth receiving portion 101b, and the two side portions 101c.

  When the bite block body 101 is formed between the upper and lower front teeth of the wearer so as to be exposed from the inside of the mouth to the outside of the mouth and deformed by being bitten by the upper and lower front teeth. Even so, it is formed with a thickness that does not cause deformation or damage to the medical device disposed in the through-groove 102 described later. In the present embodiment, the bite block main body 101 is formed such that the length between the end portion in the mouth of the wearer and the end portion outside the mouth is 25 mm, and the vertical thickness is 18 mm. . Moreover, in this embodiment, the width | variety of the bite block main body 101 is formed in the length which opposes a part of the wearer's right and left 2nd premolars. Of course, the dimensions of each part of the byte block body 101 are appropriately determined according to the specifications of the byte block 100. In the bite block main body 101, a through groove 102 is formed in an upper tooth receiving portion 101a.

  The through-groove 102 is inserted with a medical instrument (for example, a tracheal tube or an endoscope for artificial respiration) inserted into the body from the wearer's mouth when performing treatment or diagnosis of the wearer. It is a part for making the bite block 100 easy to bend and deform, and is formed in a groove shape recessed in a concave shape. In this case, the through-groove 102 is formed to have a width and depth that allow a medical instrument to be inserted into the body to be inserted. Specifically, the through groove 102 can be configured to have a width and depth wider than the thickness of the medical device so that the medical device can freely slide, and has a width narrower than the thickness of the medical device. It can also be configured to hold to the medical device formed to a depth. The through groove 102 is formed in a state where the bite block main body 101 penetrates in the direction in which the bite block main body 101 extends at the center in the width direction of the bite block main body 101. Further, the bottom of the through groove 102 is formed in a U-shaped curved surface.

  On one end side of the bite block main body 101, an upper and lower interdental cover body 103 is formed so as to protrude from the bite block main body 101. The upper and lower interdental cover body 103 is a part for fixing the bite block body 101 in the wearer's mouth and preventing the wearer's tongue from being positioned between the upper and lower teeth. The left and right portions at the end of the block body 101, in other words, are formed in a plate shape that spreads from both sides of the opening of the through groove 102.

  More specifically, in the pair of left and right upper and lower interdental covers 103, the bite block body 101 is disposed between the upper and lower front teeth of the wearer as shown in FIGS. 9 and 10A and 10B, respectively. In this case, each of the left and right upper teeth and the lower teeth has a length that reaches the left and right back teeth of the wearer, and is formed into a curved shape that is convex. In this case, each of the upper and lower interdental cover bodies 103 is formed in a shape that can cover the inner surfaces of the upper and lower teeth of the wearer while the wearer bites the bite block body 101. In FIG. 9 and FIGS. 10A and 10B, the upper and lower teeth of the wearer and their gums are shown by two-dot chain lines.

  Further, the left and right upper and lower interdental cover bodies 103 are formed so that the distance between them is wider than the left and right distances between the upper and lower tooth rows of the wearer. In this case, the interval between the left and right upper and lower interdental covers 103 may be set for each individual wearer who wears the bite block 100, but may be an average human (by gender or age). ) May be set with reference to the left and right intervals of the dentition. In addition, the distance between the left and right upper and lower interdental cover bodies 103 is larger than the distance between the left and right sides of the dentition of the wearer over the entire length between the end portion and the distal end portion of the bite block main body 101. Alternatively, it may be formed wider or partially wider than the left and right intervals of the dentition of the wearer in the entire length. In the present embodiment, the left and right upper and lower interdental cover body 103 is formed with a length in which each tip reaches the second left and right second molars, and the distance between the left and right tips is the first left and right first molars. Is set to be substantially the same as the interval between the central portions.

  These upper and lower interdental cover bodies 103 are made of a material such as a hard resin material (for example, a silicone material) or a rubber material that can be easily elastically deformed by a human finger. In this case, the hardness of the upper and lower interdental cover body 103 can be configured so that it can be easily elastically deformed even by the force of the human tongue, but cannot be easily elastically deformed by the force of the human tongue. A degree of hardness is preferred. The thickness of the upper and lower interdental cover body 103 is also set within a range where elastic deformation is possible. In the present embodiment, the upper and lower interdental cover body 103 is configured with a uniform thickness of 2 mm.

  A notch 104 is formed between the two upper and lower interdental cover bodies 103. The notch 104 is a portion for making the bite block main body 101 and the upper and lower interdental cover body 103 easier to bend, and is formed in a U shape on the opposite side to the through groove 102. An insertion notch 105 is formed at the tip of one upper and lower interdental cover body 103 of the two upper and lower interdental cover bodies 103. The insertion notch 105 is a portion that penetrates the medical instrument inserted into the body from the wearer's mouth when performing treatment or diagnosis of the wearer, and is formed in a substantially V shape. In this case, the innermost part of the insertion notch 105 is formed in an arc shape. Moreover, in this embodiment, the insertion notch part 105 is formed in the upper and lower interdental cover body 103 on the right side of the wearer.

  A protruding piece 106 and an outer flange body 107 are formed at the other end of the bite block main body 101, respectively. The overhanging piece 106 is a part that is used when the bite block main body 101 and the upper and lower interdental cover body 103 are taken in and out of the mouth and is used for holding a medical instrument held in the through groove part 102, and the bottom part of the through groove part 102 is It is formed in a plate shape extending and extending. The projecting piece 106 is made of a material and thickness such as a resin material (for example, silicone material) or a rubber material having a hardness that can be easily elastically deformed by a human finger.

  The outer flange body 107 is disposed outside the wearer's mouth to prevent secretions such as saliva from leaking from the mouth and spreading to the surroundings, and into the mouth of the bite block body 101 and the upper and lower interdental cover body 103. This is a portion for restricting the amount of insertion of the bite block, and is formed so as to protrude from the other end of the bite block main body 101 in a flange shape. In this case, the outer flange body 107 is sized to cover the mouth of the wearer holding the bite block body 101 and is curved along the left-right direction of the mouth so as to follow the shape of the mouth of the wearer. ing.

  The outer flange body 107 is made of a material and thickness such as a resin material (for example, silicone material) or a rubber material that can be easily elastically deformed by a human finger. In the present embodiment, the outer flange body 107 is formed in a substantially rectangular shape when viewed from the front, and has a uniform thickness of 2 mm. That is, in the bite block 100, the bite block main body 101, the upper and lower interdental cover body 103, the projecting piece 106, and the outer flange body 107 are integrally formed of the same material. In this embodiment, the bite block 100 is integrally formed of a silicone material.

(Operation of byte block 100)
Next, the operation of the byte block 100 configured as described above will be described. An operator who wears the bite block 100 with respect to the wearer (for example, a doctor or a person who assists the doctor's work) prepares the bite block 100 and then wears the bite block 100 in the mouth of the wearer. In this case, when it is necessary for the worker to wear a medical instrument in the body from the mouth of the wearer, the worker wears the bite block 100 after wearing the medical instrument on the wearer.

  Specifically, the operator inserts the bite block main body 101 and the upper and lower interdental cover body 103 in the bite block 100 into the wearer's mouth. In this case, as shown in FIG. 9, the operator presses the bite block main body 101 from the left and right directions to squeeze the through groove 102 from both sides and bring the left and right upper and lower interdental cover bodies 103 closer to each other. It becomes easy to insert into.

  Next, the operator brings the outer surfaces of the left and right upper and lower interdental cover bodies 103 into contact with the inner surfaces of the upper and lower teeth of the wearer. Specifically, the operator holds at least one of the bite block main body 101, the overhanging piece 106, and the outer flange body 107 in the bite block 100 and pulls it toward the outside of the mouth to cover the upper and lower teeth. Each outer surface of the body 103 can be brought into contact with each inner surface of the upper and lower teeth of the wearer (see FIG. 10 and FIGS. 11A and 11B).

  As a result, the bite block 100 is configured such that the outer surfaces of the upper and lower interdental cover body 103 are pressed against the inner surfaces of the upper and lower teeth of the wearer and elastically deformed inward, respectively. Close contact with the inner surface. In this case, the inner direction of the inner surface of each of the upper and lower teeth on which the upper and lower interdental cover body 103 is elastically deformed is a tooth as shown by the broken-line arrows in FIGS. 10 and 11 (A) and (B). The direction from the left-right direction of the row to the center of the mouth, the direction from the diagonally upper left and right of the dentition to the center of the mouth diagonally downward, and the direction from the diagonally lower left and right of the dentition to the center of the mouth diagonally above, respectively. is there. That is, the bite block 100 is held in the wearer's mouth by the pressing force that the left and right upper and lower interdental cover bodies 103 press the inner surfaces of the upper and lower teeth of the wearer (FIG. 10 and FIG. 10). (See broken line arrows in FIGS. 11A and 11B).

  In this case, the operator can adjust the force with which the upper and lower interdental cover body 103 is held in the mouth in the depth direction in the mouth. That is, the operator can increase the amount of elastic deformation of the upper and lower interdental cover body 103 by positioning the upper and lower interdental cover body 103 on the front tooth side, and can also contact the inner surfaces of the upper and lower teeth. As a result, the holding force in the mouth of the upper and lower interdental cover body 103 can be increased.

  On the other hand, the operator can reduce the amount of elastic deformation of the upper and lower interdental cover body 103 by positioning the upper and lower interdental cover body 103 on the back tooth side, and can also contact the inner surfaces of the upper and lower teeth. The holding force in the mouth of the upper and lower interdental cover body 103 can be reduced. That is, the upper and lower interdental cover body 103 has different contact areas on the inner surfaces of the upper and lower teeth of the wearer depending on the position in the depth direction in the mouth.

  Next, when a medical instrument is inserted into the wearer's mouth, the operator attaches the medical instrument to the through groove 102 in the bite block 100 or inserts the medical instrument into the insertion notch 105. Thereby, the worker can wear the bite block 100 in the wearer's mouth. In this case, the operator can fix the medical instrument attached to the through groove 102 to the overhanging piece 106. Specifically, the operator can prevent the medical device from being detached from the through groove portion 102 by binding the medical device attached to the through groove portion 102 to the protruding piece 106 using an adhesive tape or the like. Also, the operator can prevent leakage of secretions from the mouth and entry of foreign matter into the mouth by sandwiching felt or gauze between the outer flange body 107 and the periphery of the mouth of the wearer.

  Thus, the bite block 100 mounted in the wearer's mouth prevents the wearer from biting. Specifically, in the bite block 100, the bite block main body 101 disposed between the upper and lower front teeth of the wearer prevents occlusion of the upper teeth and lower teeth. In this case, in the bite block 100, the upper tooth receiving surface 101a and the lower tooth receiving surface 101b of the bite block main body 101 are respectively formed on a flat surface, so that a transient load acts on specific teeth on the upper and lower front teeth. Can be prevented.

  Further, in the bite block 100, since the left and right upper and lower interdental cover bodies 103 cover the inner surfaces of the upper teeth and lower teeth, the wearer's tongue is positioned between the upper teeth and the lower teeth. Can be prevented. In this case, the bite block 100 has the left and right upper and lower interdental cover bodies 103 formed in a curved shape along the inner surfaces of the upper teeth and lower teeth, so that the tongue is not compressed in the inner region of the lower teeth. It can be positioned in its original position and shape. Further, the bite block 100 is rotated in the mouth because the upper tooth receiving part 101a, the lower tooth receiving part 101b and the two side parts 101c are connected to each other through a right-angled corner and formed in a substantially square shape in front view. It is possible to prevent this and maintain the posture.

  Next, when removing the bite block 100 from the mouth, the operator opens at least one of the bite block main body 101, the protruding piece 106 and the outer flange body 107 in the bite block 100 with the mouth of the wearer opened. One can be gripped and pulled out of the mouth. In this case, as in the case of the insertion, the operator presses the bite block main body 101 from the left and right directions to squeeze the through groove 102 from both sides and bring the left and right upper and lower interdental cover bodies 103 close to each other. (See FIG. 9).

  As can be understood from the above description of the operation, according to the above embodiment, the bite block 100 is formed so that the interval between the left and right upper and lower interdental cover bodies 103 is wider than the interval between the left and right dentitions. The interdental cover body 103 is pressed against the inner surfaces of the upper teeth and lower teeth and elastically deforms. Thereby, the bite block 100 is applied to the inner portions of the upper and lower teeth by the reaction force when the left and right upper and lower interdental cover bodies 103 elastically deform inward along the inner surfaces of the upper and lower teeth. Since it is held, it can be easily and stably worn regardless of the shape, size and arrangement of the wearer's teeth.

  Furthermore, in carrying out the present invention, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the object of the present invention. In the following modifications, the same reference numerals are given to the same components as those in the above embodiment, and the description thereof is omitted.

  For example, in the above embodiment, the bite block 100 is configured by providing the upper and lower interdental cover body 103 at the end of the bite block main body 101 inserted into the mouth of the wearer. However, the upper and lower interdental cover body 103 only needs to be formed in the inner portion of the bite block main body 101. Therefore, the bite block 100 can also be configured by providing the upper and lower interdental cover body 103 at the mouth side portion of the bite block main body 101 inserted into the wearer's mouth. According to this, in the bite block 100, the portion of the bite block main body 101 that protrudes from the upper and lower interdental cover body 103 can restrict the movement of the tongue of the wearer and suppress the free movement of the tongue.

  Moreover, in the said embodiment, the upper and lower interdental cover body 103 was formed in the shape which covers each inner surface of a to-be-weared person's upper tooth and lower tooth. However, the upper and lower interdental cover body 103 can also be formed in a shape that covers the inner surfaces of the gums of the upper and lower teeth of the wearer.

  Further, in the above embodiment, the left and right upper and lower interdental cover bodies 103 are formed with such lengths that the respective distal end portions reach the respective left and right second molars, and the distance between the left and right distal end portions is set to each of the first left and right first portions. The distance between the central portions of the molars is set to be approximately the same. However, the left and right upper and lower interdental cover bodies 103 may be formed to have a length that does not reach the left and right second molars, for example, the length that reaches the second premolars and the first molars. it can. In this case, the interval between the left and right tip portions of the left and right upper and lower interdental cover body 103 is formed wider than the interval between the central portions of the left and right second premolars and the first molars. Note that it is desirable that the left and right upper and lower interdental cover bodies 103 be formed in a length that reaches the left and right first molars in the wearer, so that they can be mounted more stably.

  In the above embodiment, the upper and lower interdental cover body 103 is configured by forming the notch 104 at the center between the left and right upper and lower interdental cover bodies 103. However, since the upper and lower interdental cover body 103 is made of an elastic member, the notch 104 can be omitted.

  In the above-described embodiment, the upper and lower interdental cover body 103 is configured by forming the insertion notch 105 at the tip of one upper and lower interdental cover body 103. However, the upper and lower interdental cover body 103 may be configured by including an insertion notch portion 105 at each distal end portion of both the left and right upper and lower interdental cover bodies 103, or by omitting the insertion notch portion 105. You can also

  Moreover, in the said embodiment, the bite block main body 101 formed the through-groove part 102 in the center part of the upper tooth receiving part 101a, and was comprised. However, the bite block main body 101 is configured by forming the through groove portion 102 in a portion other than the central portion of the upper tooth receiving portion 101a, for example, a position close to one of the left and right in the upper tooth receiving portion 101a or the lower tooth receiving portion 101b. You can also In addition, the bite block main body 101 can be used as a through hole for a medical instrument by providing a through hole penetrating the central portion of the bite block main body 101 instead of or in addition to the through groove portion 102.

  In the above embodiment, the bite block main body 101 is configured to have a length of 25 mm in the inner and outer directions of the wearer's mouth. However, the bite block main body 101 may be formed to have a length that extends in and out of the mouth of the wearer, and may be formed to have a length of 25 mm or less or 25 mm or more. In this case, the bite block main body 101 can be used for a wearer having a wide mouth and mouth shape by setting the length of the wearer's mouth in the inner and outer directions to a length of 20 mm or more and 35 mm or less.

  In the above-described embodiment, the bite block main body 101 has a substantially square cross-sectional shape at the outer periphery. However, the bite block main body 101 can also have a cross-sectional shape of the outer peripheral portion formed in a shape other than a substantially square shape, for example, a circle, an ellipse, or a polygon (pentagon or hexagon).

  Moreover, in the said embodiment, the bite block 100 shape | molded each part integrally with the silicone material. However, in the bite block 100, the bite block main body 101, the upper and lower interdental cover body 103, the overhanging piece 106, and the outer flange body 107 can be made of different materials according to the specifications of each part. For example, the bite block 100 can be configured by arranging a silicone material around the metal bar of the bite block main body 101. According to this, the bite block 100 can improve the mechanical strength (bending or buckling) of the bite block main body 101.

  In the above-described embodiment, the bite block 100 is configured by forming the protruding piece 106 and the outer flange body 107 at the end of the bite block main body 101, respectively. However, the bite block 100 may be configured by omitting one or both of the projecting piece 106 and the outer flange body 107.

  Further, the bite block 100 can be provided with an inner flange body 108 instead of or in addition to the overhanging piece 106 and the outer flange body 107. For example, as shown in FIG. 12, the inner flange body 108 is a component made of an elastic member (resin material (for example, silicone material) or rubber material) disposed between the lips of the wearer and the upper and lower front teeth. It may be formed by protruding from the outer surface of the bite block main body 101 in a flange shape. According to the bite block 100 provided with the inner flange body 108, it is possible to prevent leakage of secretions from the mouth of the wearer and to prevent foreign matter from entering the mouth (oral cavity inside the gums). By sandwiching the upper and lower gums of the person by the inner flange body 108 and the upper and lower interdental cover body 103, the bite block 100 can be prevented from being displaced and more stably mounted. Further, according to the bite block 100, the inner flange body 108 can also prevent the wearer's lips from entering between the upper and lower teeth.

  In the above embodiment, in the bite block 100, the bite block main body 101, the upper and lower interdental cover body 103, the overhanging piece 106, and the outer flange body 107 are integrally formed of the same material (silicone material). However, the bite block 100 can also be constituted by connecting the bite block main body 101, the upper and lower interdental cover body 103, the protruding piece 106, the outer flange body 107, and the inner flange body 108 as separate bodies. . In this case, the bite block 100 may be made of different materials among the bite block main body 101, the upper and lower interdental cover body 103, the overhanging piece 106, the outer flange body 107, and the inner flange body 108.

100 ... byte block,
DESCRIPTION OF SYMBOLS 101 ... Bite block main body, 101a ... Upper tooth receiving part, 101b ... Lower tooth receiving part, 101c ... Side part, 102 ... Through-groove part, 103 ... Cover part between upper and lower teeth, 104 ... Notch part, 105 ... Insertion notch part 106 ... Overhang piece 107 ... Outer flange body 108 ... Inner flange body

Claims (3)

A bite block body disposed between the front teeth of the upper jaw and the front teeth of the lower jaw and extending from the inside of the mouth to the outside;
An upper and lower interdental cover body extending in a plate shape on each of the left and right back teeth in a shape covering the inner surfaces of the upper teeth and lower teeth from the inner portion of the bite block main body,
The upper and lower interdental cover body is
The left and right upper and lower interdental cover bodies are spaced from each other so that the upper and lower interdental cover bodies face each other so as to press the inner surfaces of the upper teeth and lower teeth of the wearer . A bite block characterized by being formed wider than the interval between dentitions.
In the byte block according to claim 1,
The upper and lower interdental cover body is
A bite block characterized by being formed in a shape covering up to each inner surface of each gum of the upper tooth and the lower tooth.
In the byte block according to claim 1 or 2,
An insertion notch for inserting a medical device into the body is formed at the tip of the upper and lower interdental cover body .

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