JPH1024043A - Bite block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bite block which is capable of surely absorbing saliva, and which cannot be crushed by biting. SOLUTION: A bite block 6 comprises a rod body 1 having a hole 5, and the rod body 1 formed by heat-fusing nonwoven fabric including heat-fusing synthetic fibers. The bite block 6 is applied to a trachea tube inserted from a mouth cavity. A tapered part 3 at one end of the bite block 6 is positioned in the mouth cavity, with the other end protruded out of the mouth cavity, and it is fixed to a skin surface in a mouth part with the trachea tube by use of an adhesive tape. Even when a patient bites it strongly, the trachea tube can be surely protected by this bite block 6, and its little elasticity softens biting action to prevent damaging of teeth. Saliva discharged from the mouth cavity is naturally absorbed by the bite block 6, thereby need of special treatment so saliva is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bite block used as a medical device.

[0002]

2. Description of the Related Art When performing a surgical operation under general anesthesia,
An endotracheal tube is inserted into the trachea, and a semi-closed circulating anesthesia is generally performed. The tracheal tube is generally inserted orally or nasally into the trachea, but if inserted orally, there is a risk that the patient may unintentionally chew and close the tracheal tube. Is likely to occur. In order to prevent the tracheal tube from being crushed, a bite block is bitten in the mouth, the tracheal tube is attached to the bite block, and both are fixed to the face with an adhesive tape.

Conventionally, this bite block is stronger than expected because the above-mentioned biting action is performed unconsciously, so a flange is provided in the middle of a hollow rod made of rubber. A tube fitted with a metal tube in the hollow part, or a tracheal tube guide groove provided on the outer surface of a square tube having a hollow hole, and similarly provided with a flap (flange) are integrated with a thermoplastic resin such as polyethylene. Formed products are used, disinfected and repeatedly used.

[0004] However, when the bite block as described above is held in the mouth, it cannot absorb saliva coming out of the mouth, so that the saliva drips out as it is, and the saliva leaks during the medical treatment. It is necessary to wipe off the saliva constantly or to insert gauze into the mouth to absorb the saliva, which is a problem from the viewpoint of hygiene. In addition, this bite block may be disinfected and reused, but if it is bitten strongly, it may leave tooth marks, making it difficult to completely disinfect it. In fact, when used, they are basically discarded without being disinfected and reused.

[0005]

Therefore, in the present invention, when the bite block is held, saliva can be reliably absorbed, and hardness and slight elasticity that do not cause crushing can be obtained. The present invention provides a sanitary and easy-to-use bite block that has a simple structure that is easy to hold to the mouth, has little slippage, and does not easily come off the mouth.

[0006]

According to the present invention, a bite block is obtained by forming a hollow by providing a hollow hole and heat-sealing a non-woven fabric containing a heat-fusible synthetic fiber into a rod. As the heat-fusible synthetic fiber of the bite block, a core-sheath fiber having polypropylene as a core and polyethylene as a sheath can be suitably used. The cross-sectional shape of the bite block is oval or circular. One end of the bar-shaped bite block to be inserted into the mouth can be formed so that its outer diameter becomes gradually smaller.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION As the heat-fusible synthetic fiber used to make the bite block of the present invention, a single fiber such as a low melting point synthetic resin such as polyethylene, polypropylene, polyvinyl alcohol and polyester can be used. , Polypropylene / polyethylene, polypropylene /
A parallel type or a sheath-core type composite fiber having a low-melting-point component as a sheath component using a combination of an ethylene / vinyl acetate copolymer, polyester / low-melting polyester, or the like is used. These low-melting-point synthetic fibers may be mixed with high-melting-point fibers such as polyamide, polyester, or polyolefin, or cotton, hemp, rayon, or acetate to form a nonwoven fabric. The composite fiber formed by the above is particularly preferable.

An example of the method of manufacturing the bite block according to the present invention is as follows: 50 parts by weight of polyethylene having a melting point of 107 to 110 ° C. is used as a sheath component, and 50 parts by weight of polypropylene having a melting point of 165 to 170 ° C. is used as a core component to obtain 4 denier. Is melt spun and cut to obtain a heat-fusible conjugate synthetic fiber having a fiber length of 51 mm. A non-woven fabric with a basis weight of 100 g / m ² is made of this fiber,
This is connected to a metal rod having a diameter of about 5 to 15 mm and an outer diameter of about 20 mm.
It is wound up to about 30 mm, inserted into a cylindrical container having holding plates at both ends, and heated in an atmosphere at 190 to 200 ° C. for 15 to 16 minutes. After removal from the container after the heating, the rod-shaped body 1 in which the fiber components of the sheath component are heat-sealed to each other.
Is obtained.

The rod-like body into which the rod is inserted is sandwiched between parallel plates and pressed for about 10 to 20 seconds to form substantially parallel plane portions 2 to make the cross section oval. Also,
One end of the rod may be pressurized to form a tapered portion 3 that tapers toward the tip, and the other end may be pressed to form a slightly arcuate chamfer 4. Thereafter, when the metal rod is removed from the rod, a bite block 6 having a hollow hole 5 is obtained. The bite block has an appropriate length, usually about 6 to 10 cm, which can prevent the bite block from dropping into the mouth when it is put into the mouth.

The above-mentioned heat-fusible conjugate synthetic fiber is usually
After the fiber is spun, a surfactant is attached. Considering that a part of the bite block is inserted into the oral cavity, it is preferable to use a material approved by FAD. For example, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan monolaurate
Sorbitan monolaurate, alkyl sulfone
Tosodium or the like may be used alone or in a suitable mixture, which is harmless to the human body and can further improve the ability to absorb saliva.

When using this, after inserting the tracheal tube 7 from the oral cavity and securing it at an appropriate position, one side surface of the bite block 6 is applied to the tracheal tube 7 (FIG. 3), and the bite is inserted. The tapered portion 3 of the block is positioned so that it enters the mouth and the other end projects outside the mouth. At this time, if the plane part 2 of the bite block contacts the upper and lower teeth 8,
Can be more stably positioned. In this state, both the bite block 6 and the tracheal tube 7 are firmly attached and fixed to the skin surface of the mouth with an adhesive tape 9 (FIGS. 4 and 5).

[0012] Since the bite block of the present invention is formed of a nonwoven fabric containing heat-sealable synthetic fibers, there is a space in a part that is not heat-sealed, and it is assumed that the patient bites strongly during the treatment. Has a high hardness and a slight elasticity that does not cause discomfort to the teeth, so that the tracheal tube can be reliably protected, and at the same time, its chewing action is moderately cushioned to prevent the teeth 8 and the like from being damaged. Since the bite block itself naturally absorbs saliva coming out of the oral cavity from the structure of the above, there is no need to perform special saliva treatment. Also, since one end in the mouth is formed in the tapered portion 3,
It does not damage the mucous membrane in the mouth as well as the narrowed part of the mouth.

When the required medical treatment is completed, the adhesive tape 9 stuck on the skin surface of the mouth is peeled off, the tracheal tube 7 is removed from the bite block 6, the tube is removed, and the bite block is discarded. . In addition, the bite block is left biting on the teeth or gums as it is, and the hollow hole 5 is used not only as a breathing hole, but also as an insertion hole for a suction tube when a suction tube is inserted into the stomach after the operation to perform treatment. Can also be used. However, in either case, the byte block is discarded after the treatment, so that there is no need to consider the hygienic problem due to reuse.

FIG. 6 shows a structure in which a plurality of projections 12 extending in the longitudinal direction are provided on the inner surface of the hollow hole 5, and when the other processing tube is inserted into the hollow hole 5, the protrusion 12 is formed. As a result, the contact resistance is further reduced, the tube slides better, and the treatment can be performed easily. This projection
When manufacturing the above-mentioned bite block, it can be easily obtained by winding a nonwoven fabric around a metal rod provided with a plurality of grooves extending in the longitudinal direction and heating.

FIG. 7 shows a structure in which a strong cylindrical pipe 13 made of polypropylene or the like is fitted into the hollow hole 5 of the bite block 6, and it is preferable to insert it so as to be in close contact with the wall surface of the hollow hole. It is good to fix by fusion, adhesion, etc. As a result, the strength of the bite block is further improved, and another processing tube can be smoothly inserted into the hollow hole. If the insertion pipe 13 is provided with a small hole as appropriate, the absorption of saliva in the hollow hole of the bite block will not be hindered. The above-mentioned hollow hole 5 can be formed into an elliptical shape, a polygonal shape, or the like in addition to the circular hole, and the cross-sectional shape of the bite block can be formed into a circular shape, an oval shape, or any other shape in addition to the above-mentioned oval shape. can do.

[0016]

The bite block of the present invention is made of a non-woven fabric containing a heat-fusible synthetic fiber and is formed into a rod shape. Because it has elasticity, it is easy to hold to the mouth, it can protect the tracheal tube etc. inserted in the oral cavity at the same time without damaging the teeth when biting, and the bite block itself is saliva It is excellent in absorptivity, and can be treated with saliva from the hollow hole if necessary during the treatment, and it is sanitary without any risk of infection by discarding and incinerating it as it is after the treatment.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is an explanatory view of a state in which a bite block is applied to a tracheal tube.

FIG. 4 is an explanatory view showing a state in which a bite block and a tracheal tube are attached to the mouth.

FIG. 5 is an explanatory view showing a state in which a bite block and a tracheal tube are attached to the mouth.

FIG. 6 is a sectional view showing another embodiment.

FIG. 7 is a sectional view showing still another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rod-shaped body 2 Flat part 3 Tapered part 4 Chamfer part 5 Hollow hole 6 Byte block 7 Tracheal tube 8 Teeth 9 Adhesive tape 12 Projection of hollow hole inner surface 13 Cylindrical pipe

Claims (4)

[Claims] 1. A bite block formed in a rod-like body having a hollow hole, wherein the rod-like body is formed by heat-sealing a non-woven fabric containing a heat-fusible synthetic fiber. 2. The bite block according to claim 1, wherein the heat-fusible synthetic fiber is a core-sheath fiber having polypropylene as a core and polyethylene as a sheath. 3. The bite block according to claim 1, wherein the cross section of the rod-shaped body is oval. 4. The bite block according to claim 1, wherein the outer diameter of one end of the rod-shaped body that enters the mouth is gradually reduced.