JP5495507B2 - Front tooth protection device - Google Patents

Description

  The present invention relates to an anterior tooth protection device for preventing damage to anterior teeth from pressure and impact by a laryngoscope during tracheal intubation.

Endotracheal intubation is a common procedure that can be performed by an anesthesiologist and an emergency paramedic paramedic in addition to anesthesiologists to manage artificial respiration during general anesthesia and to provide emergency airway for emergency patients such as cardiopulmonary arrest. ing. In general, this tracheal intubation is to expand the larynx using a laryngoscope whose tip side is curved to an L-shape, etc., and intubate an endotracheal tube there while visually checking the glottis. When deploying the larynx with a laryngoscope inserted from the oral cavity, the grasping part of the laryngoscope is rotated so as to be tilted to the upper jaw side, so that the laryngoscope is strongly applied to the maxillary anterior tooth by mistake. In addition, there have been many reports of cases in which the anterior maxillary teeth are damaged by this impact or compression, such as a pivoting operation that actively uses the maxillary anterior teeth as a fulcrum for ease of operation. .
In particular, in the case of securing the airway for emergency patients, because it is a time-consuming procedure, tube intubation is given priority, and awareness of front tooth protection may be neglected, increasing concerns about the front tooth damage. Yes.
In addition, when the patient lacks anterior teeth, a problem has been pointed out that a laryngoscope is inserted into the missing part and the laryngeal deployment may not be successful.

  Therefore, as a device for preventing damage to the front teeth by this laryngoscope or for the purpose of compensating for the loss of the front teeth, it has traditionally been the rear end surface (blade part) of the laryngoscope body. A laryngoscope has been proposed in which a tooth protection member made of an elastomer having a predetermined thickness and having a predetermined hardness and elasticity is detachably attached to a portion of the upper jaw corresponding to the fitting surface. (Patent Document 1)

Similarly, for the purpose of preventing damage to the front teeth, using a material having elasticity after modeling, it is manufactured to a thickness according to the strength of the alveolar bone assumed for the weak part of the alveolar bone in the oral cavity, There has been proposed a tooth protector for covering the gingiva of the weak portion of the alveolar bone and the tooth maintained by the alveolar bone. (Patent Document 2)
Japanese Utility Model Publication No. 4-114302 JP 2006-141833 A

  However, the laryngoscope of Patent Document 1 requires a special laryngoscope having a blade portion to which the tooth protection member can be attached and detached, and cannot be used for other laryngoscopes. However, there is a problem that the equipment becomes expensive.

  Further, the tooth protector of Patent Document 2 is manufactured by adjusting each time so as to be adapted to a specific patient before use, and is useful when there is a time margin such as general anesthesia during surgery. Since tracheal intubation is often urgent as described above, the application of this protector is limited.

  Accordingly, an object of the present invention is to provide an inexpensive anterior tooth protection device that can prevent damage to the maxillary anterior teeth by a laryngoscope in tracheal intubation and can be used in an emergency, and is highly versatile.

The anterior tooth protecting device of the present invention is used by covering the upper anterior teeth during tracheal intubation using a laryngoscope, and adapts to the curvature of the upper anterior teeth by an elastic and flexible resin. The cross section is formed in a concave shape so that the front teeth are sandwiched from the front and back surfaces, and the surface side (inner surface side) that contacts the front teeth back side of the device upper surface is more than the surface side (outer surface side) that contacts the front teeth front side. It is formed thick or hard, or is provided with a reinforcing portion on the inner surface side of the upper surface.

Further, the device is preferably formed and configured as follows.
-The curvature of the device is formed to be variable with fingers.
-In the said structure, the holding part which protrudes is further provided.
・ When the device is covered on the maxillary anterior teeth, the laryngoscope comes into contact with it, and the part that is likely to be subjected to impact or compression is made thicker or harder than the part that does not come into contact, or the part is reinforced It comprises a part.
In particular,
1. When the device is covered on the upper front teeth, the surface (inner surface) that contacts the back side of the front teeth is thicker or harder than the surface (outer surface) that contacts the front surface of the front teeth, or is reinforced on the inner surface. It comprises a part.
2. The center part of the surface that contacts the back side of the front teeth of the device is formed thicker or harder than the both end sides, or is provided with a reinforcing part at the center part .
- some devices or all formed by colored.

(Function)
According to the anterior tooth protection device of this means, by inserting the recess of the device into the upper anterior teeth of the patient and covering the anterior teeth, the protection device having elasticity and flexibility becomes a cushioning material, and the laryngoscope It is possible to reduce the impact and pressure on the front teeth due to the rotation operation and further the operation using the front teeth as fulcrums, and the possibility of damage to the front teeth can be reduced. Further, when the anterior tooth has a defect, by covering the device, the laryngoscope does not fit into the defect part, so that the inconvenience to the laryngeal deployment due to the anterior tooth defect can be eliminated.
Moreover, in use, it is suitable for the emergency because it is not troublesome and does not have time just by covering the patient's upper anterior teeth.
Furthermore, since it is easy to use as described above, it can be used for any laryngoscope, and it is made of an elastic and flexible resin, and the curvature of the device can be varied by fingers. Then, it can be set as a highly versatile device by being able to be fitted according to the shape of the patient's wearing part (front teeth).
In addition, since the shape structure is simple, it can be manufactured in large quantities and at low cost, for example, by resin molding.

Further, by providing the protective device with a gripping portion that protrudes, it is easy to attach to and remove from the front teeth.
Furthermore, when the device is attached to the maxillary anterior teeth, the portion of the laryngoscope that is susceptible to pressure and impact by the operation of the laryngoscope, that is, the portion that abuts the central portion around the back side of the anterior teeth, is thickened, or By forming it hard or providing a reinforcing part on the part, and forming the other part relatively thin or soft, it is strong enough to protect the front teeth from the pressure and impact of the laryngoscope. As well as holding, the entire device will not be larger (thick) or harder than necessary, so the overall elasticity and flexibility will not be impaired, and the function of changing the size of the curve with fingers will be provided. Can be held.
Further, by coloring the device, it is possible to expect the effect of calling attention to the front teeth protection to the processor.

According to the anterior tooth protecting device of the present invention, even if the laryngoscope comes into contact with the maxillary anterior teeth during the tracheal intubation and gives an impact during the tracheal intubation, or the anterior teeth are compressed by the operation using the anterior teeth as fulcrums Since the device acts as a cushioning material to prevent damage to the front teeth, it is possible to concentrate on laryngeal deployment and intubation without worrying about front tooth damage more than necessary. Further, even in the case of anterior tooth loss, there is no concern about the insertion of the laryngoscope into the missing part, so that smooth laryngeal deployment and intubation are possible.
Furthermore, the device can be used simply by covering and mounting on the front teeth, and since it can be deformed in conformity with the shape of the patient's front teeth, it is suitable for emergency use. It is a highly versatile device.
In addition, since the structure is simple and manufacture is easy, it can be provided at low cost.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a configuration diagram of an anterior tooth protection device showing an embodiment of the present invention.
The front tooth protection device of this example has a curved arc shape as a whole, and a reinforcement provided by projecting from the upper surface in contact with the main body 1 having a concave cross section and the arc central portion inside the upper surface of the main body 1 The portion 2 and the grip portion 3 provided by protruding from the arc on the outer side of the main body 1, and from the viewpoint of protecting the front teeth, while maintaining a certain degree of strength (hardness), a shape such as bending by fingers The entirety was integrally formed with a resin having deformable elasticity and flexibility (in this example, a styrene elastomer). Moreover, in this example, the whole was molded using a resin colored blue.
In addition, as described above, the properties of the resin that forms the device include elasticity and flexibility while maintaining a certain level of strength (hardness), and in contact with the laryngoscope, It is preferable that the material is slippery without being caught and has a certain degree of frictional resistance, and the styrene elastomer used in this example is suitable.

Next, each part will be described in detail.
The main body 1 is formed as an arc shape having a depth of about 12 mm like a mouthpiece attached only to the upper jaw along the curve of a general adult anterior tooth, and the cross section sandwiches the anterior tooth from the front and back. The thickness of each part is set to be described later according to the degree of contact with the laryngoscope when covering the front teeth. Although the size is not specified, the curvature of the outer arc is R40 or more and R55 or less (in this example, about R49) and the curvature of the inner arc is assumed to be suitable for adult anterior teeth. R20 or more, R35 or less (in this example, about R29), the angle of the arc is 130 degrees or more and 155 degrees or less (144 degrees in this example), and the height is 10 mm or more and 18 mm or less (in this example) Was formed as 12 to 13.5 mm).
The reinforcing part 2 is a part that is most likely to be shocked by the laryngoscope when the device of this example is covered on the maxillary anterior teeth, and is assumed to be pressed as a fulcrum for the aforementioned laryngeal deployment operation. In addition, the device upper surface 13 is protruded by about 2 mm from the upper surface 13 at the center portion on the front tooth back side contact surface 11 side, and the inner arc has a depth width of about 7 mm in contact with the edge portion of the front tooth back side contact surface 11. It was formed as an arc shape. Further, the size of the reinforcing portion 2 is not specified, but considering the strength and the width of the laryngoscope, the curvature of the outer arc is R15 or more, R25 or less (R20 in this example), Since the arc is along the inner arc of the main body 1, the arc angle is similarly set to 90 degrees or more and 130 degrees or less (118 degrees in this example).
In particular, the grip portion 3 is a handle for removal from the front teeth, and is formed by projecting from the surface of the main body 1 serving as the front tooth surface abutment surface 12.

2A is a top view, B is a front view, and C is a bottom view of the embodiment.
The anterior tooth protecting device of the present example is formed in the above-mentioned shape. When the device is covered with the maxillary anterior tooth, the anterior tooth back contact surface 11 to which the laryngoscope is contacted and pressed by the operation of expanding the larynx is formed. The center portion 111 is formed thicker than the both end sides 112 of the front tooth front side contact surface 12, and the center portion 111 that is likely to come into contact with the laryngoscope in the front tooth back side contact surface 11 is formed. In addition to the above-described reinforcing portion 3, the portion subjected to compression or impact by contact with the laryngoscope is formed to a thickness that maintains strength that can be reliably protected to prevent anterior tooth damage, In order not to lose flexibility, the part which is not thick is formed more thinly than necessary so as to avoid becoming hard and hard.

The whole block diagram which shows embodiment of the front tooth protection device of this invention. The top view, front view, and bottom view of the said form.

Explanation of symbols

1. 10. Front tooth protection device body Anterior tooth back contact surface 111. 11. Center part of the contact surface on the back side of the front teeth Front tooth front side contact surface 13. Upper surface 14. Recessed part 2. Reinforcing part Grip part

Claims (6)

In the case of tracheal intubation using a laryngoscope, which is formed by a resin having elasticity and flexibility so as to bend in conformity with the curvature of the maxillary anterior teeth, and the cross section is formed in a concave shape so as to sandwich the anterior teeth from the front and the back , Used to cover the front teeth of the upper jaw, and when covered, the surface side (inner surface side) that contacts the back side of the front teeth on the upper surface of the device is thicker than the surface side (outside surface side) that contacts the front surface of the front teeth, or An anterior tooth protecting device that is formed to be hard or has a reinforcing portion on the inner surface side of the upper surface.   The anterior tooth protection device according to claim 1, wherein the device is formed so that the amount of bending can be changed.   The anterior tooth protecting device according to claim 1, wherein the device includes a protruding gripping portion.   When the device is covered on the upper front teeth, the surface (inner surface) that contacts the back side of the front teeth is thicker or harder than the surface (outer surface) that contacts the front surface of the front teeth, or is reinforced on the inner surface. The anterior tooth protecting device according to claim 1, further comprising a portion. 5. When the device is covered on the maxillary anterior teeth, the central portion of the surface that contacts the back side of the anterior teeth is formed thicker or harder than both ends, or a reinforcing portion is provided at the central portion. One of the front teeth protection device. The anterior tooth protecting device according to any one of claims 1 to 5 , wherein the device is colored.

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