JP6876899B2 - Dental mirror - Google Patents

Description

The present invention relates to a dental mirror, and more particularly to a dental mirror with a light source.

Japanese Patent Application Laid-Open No. 60-31496 (Patent Document 1) describes a handle body, a support member rotatably attached to the handle body, a mouth mirror oscillatingly attached to the support member, and a handle body or It includes an adjustment member that is slidably attached to the support member and can rotate with the support member, and a lighting member. The adjustment member is connected to the endoscopic mirror so as to swing the endoscopic mirror according to the sliding of the adjustment member. Disclosed is a dentistry apparatus that is connected via a member and the illuminating member is adapted to illuminate an object to be reflected in an endoscope.

In Utility Model Registration No. 3066246 (Patent Document 2), the handle of the mirror is fixed to the outer periphery of the tip of the linear columnar illuminator, and the mirror handle is circular at the front separated position of the light source of the illuminator. Disclosed is a dental mirror characterized in that the end plate is held in an inclined shape.

In Practical New Design Registration No. 3141063 (Patent Document 3), an LED light is attached to the handle portion to which the mirror portion is attached, the light of the LED light is reflected by the mirror, and the light in the oral cavity is difficult to reach on the back side of the tooth. Disclosed is a dental mirror with an LED light that illuminates a portion with LED light.

Japanese Patent Application Laid-Open No. 2001-112793 (Patent Document 4) is a switch that houses a battery and an LED light source inside and turns on / off the LED light source in a dental mirror used for inserting into the oral cavity and performing an examination in dental treatment. A holder that emits light from an LED light source toward the tip, a handle that is detachably connected to the tip of the holder, and a mirror plate that is connected to the tip of the handle at a predetermined angle. It has a mirror formed on the surface of the mirror plate portion, and has a mirror body in which the handle portion and the mirror plate portion are integrally molded with synthetic resin, and the light of the LED light source is directed toward the mirror of the mirror body. Disclosed is a dental mirror characterized in that it is configured to be irradiated.

Japanese Patent Application Laid-Open No. 2002-136529 (Patent Document 5) attaches one or two small mirrors sized to enter the oral cavity to the tip of the handle so that the mirrors can form different angles with respect to the handle. It is configured so that in the case of two mirrors each mirror can make a different angle to the handle, the handle is forward and on the optical axis with respect to the light source of the rod-shaped thin-axis flashlight. On the other hand, we disclose an oral endoscope with a light source, which is characterized in that it is mounted substantially in parallel.

These dental mirrors irradiate the mirror with light to illuminate the oral cavity with the reflected light while observing the part reflected in the mirror. However, since it is necessary to perform both illumination and observation with the light reflected by a small mirror, there is a problem that it is not easy to observe the desired portion while appropriately illuminating the portion.

Japanese Patent Application Laid-Open No. 59-19106 (Patent Document 6) discloses a mirror in which a microlamp is attached to the root portion of a dentist's dental treatment mirror to check whether the inside of the tooth is well polished.

Utility Model Registration No. 3060298 (Patent Document 7) provides a dentifrice with a lighting device having a light source portion that is projected and tilted to prevent glare on the handle portion close to the boundary between the mirror portion and the handle portion. Disclose.

Japanese Patent Application Laid-Open No. 2002-28133 (Patent Document 8) is a dental mirror used for oral examination, which is formed by attaching a mirror to the tip of a grip portion, and is characterized in that a lighting member is arranged on the outer periphery of the mirror. Disclose the dentistry.

Japanese Unexamined Patent Publication No. 2004-188036 (Patent Document 9) describes a dental mirror in which a mouth mirror tilted at a desired angle from the gripping handle is attached to the end of the gripping handle, and a piezoelectric body is attached to the inside of the gripping handle. A pressing member is attached to the gripping handle facing the piezoelectric body, an LED is attached to the mirror surface side of the endoscope, the piezoelectric body and the LED are connected by a lead wire, and the pressing member is pressed by the electromotive force generated from the piezoelectric body. Disclosed is a dental mirror characterized by emitting an LED.

In these dental mirrors, a light source is provided on the mirror side, and the part reflected in the mirror is observed while illuminating the oral cavity with the direct light from the light source. However, since the light from the light source enters the eyes and is dazzling, there is a problem that it is difficult to observe the part reflected in the mirror.

Japanese Patent Application Laid-Open No. 3149143 (Patent Document 10) provides a dental enormous portion wider than the elongated portion on one end side of the plate-shaped elongated portion, and the surface of the elongated portion and the enormous portion is mirrored. It is a mirror, the long part is approximately the same width as the total height of the upper and lower dentition, and the length is larger than the depth length from the back teeth to the front teeth, and the huge part is narrower than the outer width and inner width of the left and right back teeth. A dental mirror having a wider width and a length larger than the depth length of the molars to the anterior teeth is disclosed.

This dental mirror has a larger mirror than usual, but since it is designed to observe the part in the oral cavity while irradiating the light from the examination table, the light from the illumination is the observer's head. There is also a problem that it is difficult to observe a desired part, such as being blocked by a mirror or the reflected light directly entering the eye.

Special Publication No. 60-31496 Utility Model Registration No. 3066246 Utility Model Registration No. 3141063 Japanese Unexamined Patent Publication No. 2001-112793 Japanese Unexamined Patent Publication No. 2002-136529 Jikkai Sho 59-19106 Utility Model Registration No. 3060298 JP-A-2002-28133 Japanese Unexamined Patent Publication No. 2004-188036 Utility Model Registration No. 3149143 Gazette

An object of the present invention is to provide a dental mirror that makes it easy to observe a desired site in the oral cavity while illuminating the site.

The dental mirror according to the present invention is provided with a rod-shaped handle having a front end and a rear end, a vertically long mirror having a mirror surface extending in the coaxial direction with the handle and having a mirror surface starting from the front end of the handle, and a front end side of the handle. It has a light source directed toward the tip of the vertical mirror, a cylinder formed in the handle that extends in the axial direction of the handle, and a tip to which the light source is attached, and is housed in the cylinder and along the axial direction of the handle. It is equipped with a movable rod that can slide in the cylinder.

FIG. 1 is a perspective view showing a dental mirror according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the part of the dental mirror shown in FIG.

The dental mirror according to the present embodiment includes a rod-shaped handle, a vertically long mirror, a light source, a cylinder, and a movable rod. The handle has a front end and a rear end. The vertically elongated mirror is provided so as to extend coaxially with the rod-shaped handle, and has a mirror surface starting from the front end of the handle. The light source is provided on the front end side of the handle and is directed toward the tip of the vertically long mirror. The cylinder is formed in the handle and extends in the axial direction of the handle. The movable rod has a tip to which a light source is attached, is housed in a cylinder, and is slidable in the cylinder along the axial direction of the handle.

According to the present embodiment, when the movable rod is put into the cylinder or taken out of the cylinder, the light source moves freely on the mirror surface of the vertically long mirror along the coaxial direction with the handle. As a result, in the present embodiment, it is easy to observe the desired part in the oral cavity while illuminating the part.

The movable rod may be made of a member that can be bent freely and can maintain its shape.

In this case, the light source can be directed in a desired direction by bending the movable rod.

The handle may have a cylindrical shape. The light source may be centered on the front edge of the handle. The vertical mirror may be eccentrically arranged at the front end of the handle.

In this case, by rotating the handle around the light source, the vertically long mirror can be directed in a desired direction in the oral cavity.

The handle may have a taper formed from the outer peripheral surface to the front end.

In this case, since the front end portion of the handle does not block the field of view, the oral cavity can be widely observed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals and the description thereof will not be repeated.

With reference to FIG. 1, the dental mirror 1 according to the embodiment of the present invention includes a rod-shaped handle 2, a vertically long mirror 3, a light source 4, and a slide mechanism 5. The handle 2 has a front end 21 and a rear end 22. The vertically long mirror 3 is provided so as to extend in the coaxial direction X with the handle 2. The vertically long mirror 3 has a mirror surface 31. The mirror surface 31 starts from the front end 21 of the handle 2. The light source 4 is provided on the front end 21 side of the handle 2. The light source 4 is directed toward the tip 32 of the vertically elongated mirror 3.

With reference to FIG. 2, the slide mechanism 5 is located at a relative position between the vertical mirror 3 and the light source 4 such that the light source 4 moves on the mirror surface 31 of the vertical mirror 3 along the coaxial direction X with the handle 2. Change the relationship. More specifically, the slide mechanism 5 includes a cylinder 51 and a movable rod 52. The cylinder 51 is formed in the handle 2. The cylinder 51 extends in the axial direction X of the handle 2. The movable rod 52 has a tip 53 to which the light source 4 is attached. The movable rod 52 is housed in the cylinder 51 and can slide in the cylinder 51 along the axial direction X of the handle 2.

The cylinder 51 is composed of, for example, a straight hole formed in the handle 2, a pipe mounted in the handle 2, and the like.

The movable rod 52 is composed of a member that can be freely bent and can maintain its shape. As the member of the movable rod 52, for example, a bellows, a bellows, a flexible pipe in which a steel wire is embedded in a spiral shape, or the like can be used. The movable rod 52 has a cylindrical shape.

Since the diameter of the movable rod 52 is slightly smaller than the diameter of the cylinder 51, the movable rod 52 is slidable in the cylinder 51. Therefore, the entire movable rod 52 can be stored in the cylinder 51, or almost the entire movable rod 52 can be pulled out from the cylinder 51.

With reference to FIGS. 1 and 2, the handle 2 has a cylindrical shape. The light source 4 is arranged at the center of the front end 21 of the handle 2. The vertically long mirror 3 is eccentrically arranged at the front end 21 of the handle 2.

The handle 2 has a taper 24 formed from the outer peripheral surface 23 to the front end 21. The handle 2 has a substantially cylindrical shape and is made of resin, metal, or the like.

As the vertically long mirror 3, for example, a mirror in which metal is vapor-deposited on one side of a flat plate made of glass or resin, a flat plate made of metal, or the like can be used. The vertically long mirror 3 is fixed to the front end 21 of the handle 2 by embedding the rear end 33 in the handle 2. The mirror surface 31 of the vertically long mirror 3 starts from the front end 21 of the handle 2 and reaches the tip 32 thereof. That is, the entire surface of the vertically long mirror 3 is a mirror surface 31.

The vertically long mirror 3 has a size that can be inserted into the oral cavity. The size of the vertically long mirror 3 is preferably large as long as the vertically long mirror 3 can be easily inserted into the oral cavity. The vertical length is, for example, 6 to 12 cm, preferably 8 to 10 cm. The lateral length is, for example, 2 to 6 cm, preferably 3 to 5 cm. The vicinity of the tip 32 of the vertically long mirror 3 is formed not at a corner but at a round shape so as not to damage the oral cavity.

As the light source 4, for example, an LED (light emitting diode), a light bulb, or the like can be used. Since the light source 4 is directed toward the tip 32 of the vertically long mirror 3, the light is emitted toward the tip 32, but a part of the light is directly irradiated into the oral cavity and the other part is a mirror surface. It is reflected at 31 and irradiated into the oral cavity.

The dental mirror 1 further includes a switch 6, a battery 7, and a USB socket 8. The switch 6 is embedded in the handle 2 and exposed from the outer peripheral surface 23 of the handle 2. The switch 6 is connected to the light source 4 and the battery 7 to turn on / off the light source 4. The battery 7 is housed in the handle 2. The battery 7 is a secondary battery such as a lithium ion battery, and is connected to the light source 4, the switch 6, and the USB socket 8. The conducting wire connected between the light source 4 and the battery 7 is arranged in the movable rod 52. The battery 7 is charged by supplying electric power to the light source 4 to cause the light source 4 to emit light and receiving electric power from the USB socket 8. The USB socket 8 is embedded in the handle 2 and exposed from the rear end 22 of the handle 2. The USB socket 8 receives power from the outside.

Next, how to use the dental mirror 1 will be described.

When the switch 6 of the dental mirror 1 is turned on, the light source 4 emits light. Hold the handle 2 and insert the vertically elongated mirror 3 into the oral cavity.

When the movable rod 52 is completely housed in the handle 2, the light source 4 is located at the front end 21 of the handle 2. Therefore, the light source 4 can illuminate the oral cavity widely. When the light source 4 is picked up by a finger and the movable rod 52 is pulled out from the handle 2, the light source 4 is located on the vertically long mirror 3. By pulling out the movable rod 52 by a desired length, the light source 4 can be arranged at a desired position on the vertically long mirror 3. Therefore, the light source 4 can brightly illuminate a desired portion in the oral cavity. Therefore, it is easy to observe the desired part in the oral cavity while illuminating the part.

Further, by bending the movable rod 52, the light source 4 can be directed in a desired direction. Further, by rotating the handle 2 around the light source 4, the vertically long mirror 3 can be directed in a desired direction in the oral cavity. Therefore, it is possible to observe all the parts in the oral cavity while illuminating the parts.

Further, since the taper 24 is formed and the front end portion of the handle 2 does not block the field of view, the inside of the oral cavity can be widely observed.

The present invention is not limited to the above-described embodiment, and may be transformed into various forms within the scope of claims described later.

For example, the handle 2 does not have to be columnar, and may be prismatic. Further, the entire surface of the vertically long mirror 3 does not have to be the mirror surface 31, and a frame may be provided on the peripheral edge of the vertically long mirror 3. Further, the vertically long mirror 3 does not have to be flat and may be slightly curved.

Further, the vertically long mirror 3 may be detachably attached to the handle 2. Specifically, the vertically long mirror 3 may be screwed with bolts. Alternatively, the vertically long mirror 3 may be made of a magnetic material such as iron, a magnet may be provided on the handle 2, and the vertically long mirror 3 may be magnetically fastened to the handle 2. In this case, if the vertically long mirror 3 is removed from the handle 2, it can be easily cleaned. Further, vertically long mirrors 3 having a plurality of types of sizes and shapes may be prepared and can be changed according to preference. Further, if a transparent film is attached on the mirror surface 31 of the vertically long mirror 3 and replaced as appropriate, or if the entire vertically long mirror 3 is covered with a transparent bag and replaced as appropriate, the vertically long mirror 3 can be formed. It will be easier to keep hygienic.

The cylinder 51 is not limited to a cylinder, and may be a square cylinder. Similarly, the movable rod 52 is not limited to a cylinder or a cylinder, and may be a prism or a square cylinder. The movable rod 52 may be weakly fixed each time it is pulled out by several millimeters so that the position of the light source 4 can be changed in multiple stages. Further, the rear end of the movable rod 52 may protrude from the rear end 22 of the handle 2. In this case, the light source 4 can be moved by sliding the movable rod 52 by pushing the protruding portion into the handle 2 or pulling it out from the handle 2.

1: Dental mirror 2: Handle 3: Vertical mirror 4: Light source 5: Slide mechanism 21: Front end 22: Rear end 23: Outer peripheral surface 24: Taper 31: Mirror surface 32: Tip 51: Cylinder 52: Movable rod

Claims (4)

A rod-shaped handle with front and rear ends,
A vertically long mirror provided so as to extend in the coaxial direction with the handle and having a mirror surface starting from the front end of the handle.
A light source provided on the front end side of the handle and directed toward the tip of the vertically long mirror, and
A cylinder formed in the handle and extending in the axial direction of the handle,
A dental mirror having a tip to which the light source is attached, housed in the cylinder, and comprising a movable rod slidable in the cylinder along the axial direction of the handle. The dental mirror according to claim 1.
The movable rod is a dental mirror made of a member that can be bent freely and can maintain its shape. The dental mirror according to claim 1 or 2.
The handle has a cylindrical shape and has a cylindrical shape.
The light source is located in the center of the front end of the handle.
The vertically elongated mirror is a dental mirror that is eccentrically arranged at the front end of the handle. The dental mirror according to any one of claims 1 to 3.
The handle is a dental mirror having a taper formed from the outer peripheral surface to the front end.

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