JPH10167179A - Mouthpiece for underwater breathing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a mouthpiece for an underwater breathing device at a natural position of human original engagement of upper and lower teeth by furnishing a bite part for biting and holding molded in conformity with an individual intraoral dental arch shape and molded in an occlusal shape by individual upper and lower overall molar parts on left and right deep parts. SOLUTION: A dental arch-shaped thermoplastic 4 having a softening point of temperature which an intraoral tissue can endure, for example, a softening point around 50 deg.C is used, it is heated up to the softening point and arranged between dental occlusal surfaces, after it is clenched for a certain period of time by pressurizing it between upper and lower dental teeth, temperature is lowered down to lower than the softening point, and it is taken out of an oral cavity at the stage where it is hardened and molded as a dental die. Preferably, this dental arch shaped-thermoplastic 4 has a projected piece of posterior part length on its deep part inside. After forming bite parts 2a, 2b for biting and holding by upper and lower overall molar parts in this way, a mouthpiece 10 for an underwater breathing device is formed by fitting them on an end part of a suction port 3b of a gas introduction part 3a and integrating them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mouthpiece for an underwater breathing apparatus provided in a breathing apparatus used for breathing in water.

[0002]

2. Description of the Related Art In recent years, when breathing underwater, such as underwater diving and snorkeling, a method of holding a breathing apparatus by holding a mouthpiece for the underwater breathing apparatus in the mouth and breathing has been mainly used. . 2. Description of the Related Art Conventionally, a mouthpiece for an underwater breathing apparatus used for an underwater snorkel or a diving oxygen inhaler used for underwater breathing, bites a bite portion with approximately two front molars of upper and lower teeth. It is formed as follows. The upper tooth contact surface and the lower tooth contact surface are horizontal and of the same flat shape, so that the bite portion can be engaged and fixed in a state where the upper and lower teeth face horizontally and vertically, and about 5 to 10 mm. The bite portion has a thickness, and the bite portion protrudes from the left and right ends of the inner wall surface of the bite of the mouthpiece for an underwater breathing apparatus formed in an arc shape.

[0003]

However, in the mouthpiece for an underwater breathing apparatus having such a shape, since the upper and lower teeth are vertically opposed to each other, the lower jaw is in a forward collision state when worn.
In addition, the interval when the upper and lower teeth are bitten is 5 to 10 mm, and the temporomandibular joint moves to the forward sliding position. For this reason, an abnormal load is imposed on various muscles that control the movement of the jaw, and by maintaining this state for a long time, the muscles that move the lower jaw are quickly fatigued, the jaws are loosened, and the biting force is attenuated faster. In addition, the temporomandibular joint is not maintained at a normal position, but rather is located in the anterior and lower part of the glenoid fossa. And pathological abnormalities such as Kosten's syndrome. These pathological abnormalities can cause migraine muscle fatigue and cramps, tinnitus, dizziness,
There is a possibility that the hearing may be reduced, and furthermore, indefinite complaints may be presented due to those symptoms, the emotion may become unstable, and functional impairment such as a decrease in thinking ability may be caused. The sense of equilibrium also becomes dull, and in water these symptoms are life-threatening.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is to provide a mouthpiece for a submersible respirator at a natural position where the upper and lower teeth of a human being are engaged. Of the invention. (1) It is characterized in that it comprises a bite part for occlusal which is molded in conformity with the form of the oral dental arch of the individual, and which is formed in the left and right back part in an occlusal form by all the upper and lower molars of the individual. Mouthpiece for underwater breathing apparatus. (2) The bite for biting is made of a thermoplastic having a softening temperature of 45 to 60 ° C. (1)
The mouthpiece for an underwater respiratory apparatus according to the above item. (3) At the front of the mouthpiece for the underwater breathing apparatus, a cylindrical gas conducting portion having a flattened suction port is formed so that a load is not applied to the jaw joint of the wearer. The mouthpiece for an underwater breathing apparatus according to the above mode (1) or (2). (4) The mouthpiece for an underwater breathing apparatus according to any one of the above (1) to (3), wherein the mouthpiece for the underwater breathing apparatus is for a snorkel. (5) The mouthpiece for an underwater breathing apparatus according to any one of (1) to (3), wherein the mouthpiece for an underwater breathing apparatus is for an oxygen inhaler for diving. (6) In preparing a mouthpiece for an underwater breathing apparatus, a dental arch-shaped thermoplastic having a softening temperature of 45 to 60 ° C. is heated to the softening temperature, put into the oral cavity, and chewed with upper and lower teeth. A method of manufacturing a mouthpiece for a submersible respiratory device, characterized in that a bite portion that matches the occlusal form of an individual is created by cooling and hardening. (7) In preparing a mouthpiece for an underwater respiratory apparatus, a thermoplastic resin having a dental arch shape having a softening temperature of 45 to 60 ° C. and having a protruding piece having a posterior length inside the back is heated to the softening temperature. A mouthpiece for an underwater respiratory apparatus, wherein the bite is fitted into the oral cavity, bitten by all upper and lower molar teeth, and then cooled and hardened to create a bite portion that matches the occlusal form of the individual. .

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The mouthpiece for an underwater breathing apparatus according to the present invention has a shape adapted to the shape of the oral dental arch of an individual, and is held by the upper and lower molars at the position where the most stable muscle can be obtained. Have As shown in FIG. 1, a mouthpiece for an underwater breathing apparatus according to the present invention has a bite 1 formed entirely in the form of an oral dental arch and a bite part for biting formed in an occlusal form of all upper and lower molars. 2a, 2b, a cylindrical gas conducting portion 3a having a flat suction port 3b, and bite portions 2a, 2b for biting are protrudingly provided on the left and right inner portions of the bite portion 1. Also, the upper and lower teeth contact surfaces 2 of the bite part for biting
In c and 2d, tooth molds formed in accordance with the positions of the teeth in the most natural state at the time of individual engagement are engraved, and molars are worn along the tooth mold when the mouthpiece for the underwater breathing apparatus is mounted. FIG. 2 shows a state in which a mouthpiece for an underwater breathing apparatus for underwater snorkel is mounted. The wearer bites the bite 2 for biting with all the molars, and turns the bite 1 into a dentition. Attach them together. As a result, the gas conducting portion 3a is projected and held at the mouth of the wearer. The bite 2 has a thickness such that the central occlusal position is slightly higher than the position facing the upper and lower teeth incisions, and is installed vertically so that it can be attached to the position within 10 mm from the upper and lower incisors. Have been.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the production of a mouthpiece for an underwater breathing apparatus according to the present invention will be described in detail. The mouthpiece for the underwater breathing device is
A dental arch-shaped thermoplastic having a softening point having a relatively low softening point, that is, a softening point capable of withstanding human body tissue in the oral cavity, for example, a softening point of about 50 ° C., is heated to at least the softening point. Then, it is placed between the occlusal surfaces in the oral cavity, and after being engaged for a while by pressing between the upper and lower dentition teeth, at the stage where the temperature is lowered below the softening point and hardened and shaped according to the dentition tooth mold. Remove from the mouth. As shown in a perspective view of FIG. 3, the dental arch-shaped thermoplastic (4) has a protruding piece 2 'having a posterior part length inside a back portion thereof.
It is preferable that the protruding piece portion is engaged with the upper and lower molars, cooled to a softening point or lower, and then taken out. Examples of such a thermoplastic include a low-temperature polyester resin, for example, a highly crystalline thermoplastic aliphatic polyester resin, for example, “Placcel H” (melting point 80 ° C., softening point 50 ° C.) of Daicel Chemical Industries,
Heated to about 50-60 ° C and softened, put into the oral cavity, bite with at least all molars, hold for 2-3 minutes, and allow to cool naturally or by contact with cold air or cold water The temperature is lowered and cured below. In this manner, a bite portion for biting by the upper and lower molars of the mouthpiece formed in the dentition state of the specific individual is created. Next, the bite for gripping prepared as described above is fitted into the end of the suction port 3b of the gas conducting portion 3a of the mouthpiece formed in advance and integrated by fitting, bonding or the like. In addition, the inlet 3b is a flattened cylindrical gas conducting portion 3a.
It has.

According to this method, a mouthpiece for an underwater respiratory apparatus adapted to the occlusal shape of a specific individual can be easily prepared.

[0008] Instead of using the method of the above embodiment, if a base model is made using an articulator and the biting portion is configured to be detachable, it is only necessary to take a mold of only the biting portion.
Mouthpieces that fit each person's occlusion can be easily created. It is also possible to replace only the cutting part.

[0009]

According to the present invention molded as described above, since the cutting tool is formed in an occlusal state for an individual,
The teeth are determined according to the shape, and it is possible to provide a mouthpiece having a personal bite portion that is close to an ideal occlusion state. In addition, the lower jaw does not fall into a front-end state when worn, and the intake port is formed flat, so that it is not necessary to take an unnatural holding shape, so the load on the temporomandibular joint is reduced, and various muscles There is no extraordinary burden on As a result, the mouthpiece for the underwater breathing apparatus can be worn at the natural position where the upper and lower teeth of the human being mesh with each other, so that the inhaler obtains stability in a stable state, causing fatigue and pathological symptoms. And the safety of behavior in water can be ensured. In addition, since the creation method is simple, not only the production at the store but also the production by an individual is possible.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mouthpiece for an underwater breathing apparatus according to the present invention.

FIG. 2 is a perspective view of the underwater breathing apparatus mouthpiece of the present invention for underwater snorkel wearing.

FIG. 3 is a perspective view of an arch-shaped thermoplastic.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Bit part 2 ・ 2a ・ 2b Biting part for biting 2c Upper tooth contact surface 2d Lower tooth contact surface 2 ′ Projection 3a Gas conducting part 3b Suction port 4 Dental arch-shaped thermoplastic plastic 10 Mouse for underwater breathing apparatus piece

Claims (7)

[Claims] 1. An occlusal cutting tool molded in conformity with the shape of an oral dental arch of an individual, and provided at the left and right inner backs with an occlusal shape formed by an occlusal shape of all upper and lower molars of the individual. A mouthpiece for an underwater breathing apparatus, characterized in that: 2. The bite part for biting has a softening temperature of 45-6.
The mouthpiece for an underwater breathing apparatus according to claim 1, wherein the mouthpiece is made of a thermoplastic at 0 ° C. 3. A mouthpiece for a submersible breathing apparatus, wherein a cylindrical gas conducting portion having a flattened suction port is formed at the front of the mouthpiece so that a load is not applied to the jaw joint of the wearer. The mouthpiece for an underwater breathing apparatus according to claim 1 or 2, wherein 4. The underwater breathing apparatus mouthpiece is for a snorkel.
The mouthpiece for an underwater breathing apparatus according to any one of the above. 5. The underwater breathing apparatus mouthpiece according to claim 1, wherein the underwater breathing apparatus mouthpiece is for a diving oxygen inhaler. 6. In the preparation of a mouthpiece for an underwater breathing apparatus, a dental arch-shaped thermoplastic having a softening temperature of 45 to 60 ° C. is heated to the softening temperature, and it is put into the oral cavity and the upper and lower teeth are used. A method of manufacturing a mouthpiece for an underwater respiratory apparatus, wherein a bite portion that matches a bite form of an individual is created by biting, and then cooling and hardening. 7. In preparing a mouthpiece for an underwater breathing apparatus, a thermoplastic resin having a dental arch shape having a softening temperature of 45 to 60 ° C. and having a protruding portion having a posterior portion length inside the back portion is prepared. The mouthpiece for underwater respiratory devices is characterized by creating a bite part that matches the occlusal form of an individual by heating it into the mouth, biting it with all upper and lower molar teeth, then cooling and hardening it Production method.