JP3096844B2 - Dental check light - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental check light used for examining and treating teeth.

[0002]

2. Description of the Related Art When a dentist examines teeth in a patient's mouth at a dental clinic, light from a lighting device is conventionally used to illuminate the inside of the patient's mouth. This light often does not reach the affected area well. Also,
In the use of a dental mirror, for example, the light may be reflected by a dental mirror to illuminate it, but in some cases, the light does not reach the dental mirror, such as an obstacle to the dentist's head. Therefore, there was a disadvantage that it could not be illuminated.

On the other hand, there is a dental check light as shown in FIG. 6 for surely illuminating the inside of the oral cavity to every corner.

[0004] In this method, a straight or fixed flexible or bendable shaft 6 is protruded from the end of a grip portion 8 for accommodating a battery therein as a holder, and the end of the shaft is connected to a bulb 4a. It is a flashlight type configured as a top lamp 4 disposed. In the figure, reference numeral 9 denotes a rotary switch provided at the rear end of the grip portion 8 for turning the top lamp 4 on and off.

In order to open and close the grip portion 8 by replacing the internal battery, a main body 8a and a lid 8b are screwed together.
Is connected to the shaft 6.

[0006] The grip portion 8 is gripped by hand, and the top lamp 4 at the tip is irradiated close to the affected part. However, it is very difficult to operate the dental check light and the dental mirror as a separate body. Therefore, a dental check light and a dental mirror are integrated into one, so that both functions can be used. In FIG. 6, reference numeral 1 denotes a circular mirror, and a tip of a leg 2 of the mirror 1 is provided. Is connected below the top lamp 4 so that the mirror 1 is located in front of the top lamp 4.

[0007]

By the way, in order to prevent the infection of AIDS virus and other pathogenic bacteria which have recently become a problem due to the demands of hygiene management, a check light is inserted into the oral cavity. The check light and the mirror need to be cleaned or disinfected after each use, since the backside of the mirror directly contacts the inside of the cheek.

At the time of such cleaning and disinfecting, the shaft 6 integral with the lid 8b is separated from the main body 8a, and the mirror 1 and the shaft 6 are also separated and cleaned and disinfected to the smallest detail. Therefore, such work is troublesome.

[0009] In addition, the check light, in particular, has an electrical connection part, and is not suitable for washing with a liquid such as boiling or disinfectant or washing water, and washing and disinfecting may cause a failure. There is.

[0010] On the other hand, disinfection is also performed using an ultraviolet radiation device. In this case, however, specialized knowledge for handling the device is required, and the operation is troublesome. Is very cumbersome,
Because of the time it takes, it can withstand continuous use, especially in schools and companies, where a large group of dental examinations and a large number of patients are checked in a short period of time, such as when reservations are crowded. Absent.

An object of the present invention is to eliminate the inconvenience of the prior art and to cover the cover so that the main body does not directly touch the mouth of the patient, so that the sanitary condition can be easily maintained, and disinfection and cleaning can be performed. An object of the present invention is to provide a dental check light which does not need to be damaged and which is not likely to be broken down due to flooding or the like.

[0012]

According to the present invention, in order to achieve the above object, first, a shaft is protruded at a tip of a grip portion for storing a battery therein, and a bulb is disposed at a tip of the shaft. In a dental check light, as a cover from the grip to the bulb, at least the tip has translucency,
In addition, a bulging portion that presses against the upper peripheral surface of the grip portion protrudes from the inner peripheral surface, further forms a step toward the tip, and then attaches the leg of the dental mirror to the mounting portion. Second, the dental mirror was provided with a band piece at the end of the leg,
The gist of the present invention is to detachably fit the cover with the band piece.

According to the first aspect of the present invention, the state from the shaft to the grip, including the electric bulb, which is the most susceptible to failure when it comes into contact with liquid such as washing water or disinfectant, is always covered with the cover. Therefore, there is no need to wash or disinfect this portion, and it is possible to prevent an electrical failure when performing such washing or disinfection.

Further, at the time of use, since at least the tip of the cover is translucent, the light from the bulb is reflected by the mirror attached to the tip of the cap without blocking the light from the bulb. By doing so, it is possible to reliably illuminate the affected part located deep inside the oral cavity.

After use, the user can easily prepare for the next use by removing the cover and replacing it with a new one.
The used cover may be disposable, but since it is made of a heat-resistant synthetic resin, it can be disinfected by boiling, and the cost can be reduced by reuse. Further, the mirror attached to the tip can also be sterilized by boiling.

Further, the cover is fitted to the grip portion, but the bulging portion which presses against the upper peripheral surface of the grip portion protrudes from the inner peripheral surface, so that the cover can be fitted easily and securely, and is stable. In addition to obtaining a mounted state, it is easy to attach and detach.

According to the second aspect of the present invention, the dental mirror can be securely locked by caulking the outer periphery near the tip of the cover by elasticity of the band piece provided at the end of the leg, and can be detached. Is also easy.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing an embodiment of a dental check light according to the present invention, and FIG. 5 is a plan view showing the components of the dental check light. The check light itself is the same as the conventional example described in FIG. .

That is, the grip portion 8 for holding the battery inside as a holder has a main body 8a and a lid 8b screwed together, and a shaft 6 protrudes from the lid 8b.
Top lamp 4 having bulb 6a disposed at the tip of shaft 6
It is a flashlight type configured as.

In the present invention, a cover 10 made of a heat-resistant synthetic resin is formed on such a check light as a cover from the grip portion 8 to the bulb 4a. As the heat-resistant synthetic resin for forming the cover body 10, a translucent polycarbonate [Sumitomo Dow Co., Ltd. product "Calibur 301-15" light transmittance 89
% And a refractive index of 1.585) are suitable, and the whole may be transparent, but at least the tip portion is translucent.

As shown in FIGS. 2 to 4, the cover 10 has a large diameter portion 10a, a medium diameter portion 10b, and a small diameter portion 10c from the rear end toward the front end.
The large diameter portion 10a becomes a fitting portion to the upper end of the grip portion 8, and the bulging portion 11 which comes into pressure contact with the upper peripheral surface of the grip portion 8 is integrally projected on the inner peripheral surface. Established.

In the present embodiment, the bulging portion 11 has the same center as the circle of the large diameter portion 10a, and when a circle having a diameter slightly smaller than the inner diameter circle of the large diameter portion 10a is imagined, the circumscribed circle is circumscribed to this imaginary circle. Further, the equilateral triangle is further imagined, and the sides of the imaginary equilateral triangle located inside the inner diameter circle of the large-diameter portion 10a are plane portions, which are evenly provided at three places. This flat part
By making the inner diameter curved surface of the large diameter portion 10a flat, the bulged portion becomes thicker than other portions.

Further, the rear end of each bulging portion 11 is rounded as shown in FIG. 4 to facilitate insertion of the upper end of the grip portion 8.

In order to prevent the finger from slipping, the large-diameter portion 10a is formed with a hooking portion 12 having a large number of grooves arranged at a fine pitch on the outer periphery of the end portion.

A step 7 is formed at the boundary between the middle diameter portion 10b and the small diameter portion 10c of the cover 10, and the tip of the small diameter portion 10c is designed to reduce refraction of light and to facilitate insertion. Hemisphere.

The mirror 1 is provided at one end of the leg 2 with a band 3 made of a curved plate having a slit 5 formed at the center, and is detachably fitted to the small diameter portion 10c of the cover 10 with the band 3. At this time, the band piece 3 engages with the stepped portion 7, and the tip of the small diameter portion 10 c appears before the band piece 3.

In use, the mirror 1 is attached to the cover 10, and then the cover 10 is put on the check light. Alternatively, the mirror 1 is attached after covering the check light with the cover 10.

When a check light is inserted into the large-diameter portion 10a of the cover 10 until the upper portion of the grip portion 8 enters, the light bulb 4a of the top lamp 4 is attached to the tip of the shaft 6 by the small-diameter portion 10c of the cover 10. Fits inside the tip of

In this state, the bulging portion 11 formed on the inner surface of the large-diameter portion 10a is pressed against the upper peripheral surface of the grip portion 8 and the cover 10 is stably connected without coming off the check light. Also, if the small diameter portion 10c of the covering body 10 is pushed into the band piece 3 from the front end and the band piece 3 is engaged with the step portion 7 while slightly expanding the band piece 3, the elastic force of the band piece 3 after insertion is obtained. Can be fixed more firmly.

The rotary switch 9 is turned to turn on the light bulb 4a of the top lamp 4, and the light from the light bulb 4a is reflected by the mirror 1 to reliably illuminate the affected part located deep in the oral cavity. .

After use, the check light does not need to be washed and disinfected since it does not come into contact with the patient's mouth. Only the cover 10 and the mirror 1 are removed from the check light and replaced with a spare one. The removed cover 10 may be disposable, but in consideration of cost, it is reused by washing or boiling disinfection. In addition, the mirror 1 is also removed from the cover body 10 to perform cleaning and boiling disinfection.

As another embodiment, although not shown,
The length of the large diameter portion 10a may be extended to cover the entire length of the grip portion 8. Further, the cover 10 and the mirror 1 may be integrated.

[0033]

As described above, the dental check light of the present invention can be maintained in a sanitary state, and can be easily disinfected and washed because the body portion does not directly touch the mouth of the patient since the cover is covered. Since there is no need, there is no risk of failure due to flooding or the like, and the present invention can sufficiently cope with a case in which a large number of patients are examined in a short period of time such as a dental examination of a group.

When the present invention is made into a product, a set of 5 to 7 cover members 10 as spares for check lights is sold and sold, thereby reducing costs and improving convenience for consumers. By doing so, the purchasing demographics will expand.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a dental check light according to the present invention.

FIG. 2 is a side view of a cover used in the dental check light of the present invention.

FIG. 3 is a longitudinal sectional front view of a main part of a cover used in the dental check light of the present invention.

FIG. 4 is a longitudinal sectional side view of a main part of a cover used in the dental check light of the present invention.

FIG. 5 is a plan view of each part of the dental check light of the present invention.

FIG. 6 is a side view of a conventional dental check light.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mirror 2 ... Leg 3 ... Band piece 4a ... Light bulb 4 ... Top lamp 5 ... Slit 6 ... Shaft 7 ... Step 8 ... Grip 8a ... Body 8b ... Lid 9 ... Rotary switch 10 ... Cover 10a ... Large Diameter part 10b ... Medium diameter part 10c ... Small diameter part 11 ... Swelling part 12 ... Hook part

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A61B 1/00-1/32

Claims (2)

(57) [Claims] 1. A dental check light in which a shaft is protruded from a tip of a grip portion for housing a battery therein, and a bulb is disposed at the tip of the shaft. In addition, a bulging part that presses against the upper peripheral surface of the grip is projected from the inner peripheral surface, and a step is formed on the way to the tip. A dental checklight, which is covered with a cover made of heat-resistant synthetic resin made of polycarbonate and has a leg portion of a mirror for mounting. 2. The dental check light according to claim 1, wherein the dental mirror is provided with a band piece at a leg end, and is detachably fitted to the cover with the band piece.