JP2002238848A - Dental mirror device for miniature camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dental mirror device allowing the grasp of an image without the position rotation of an image visible from a monitor and an image taken into a miniature camera even if changing the direction of an inspection mirror part inserted in an oral cavity. SOLUTION: This dental mirror device 1 for the miniature camera comprises the miniature camera 10, a cylindrical operating part 20 and a body case 30. In the dental mirror device 1 for the miniature camera, a projection 25 is formed on the outer peripheral surface of a cylindrical part 21 of the cylindrical operating part 20, and a projecting piece 33 is formed at an insert shaft part 39 of a fixed part 31. The projecting piece 33 is rotatably and slidably fitted to the projection 25. Consequently, even if a user of the dental mirror device 1 for the miniature camera inserts the examination mirror part 28 in the oral cavity and rotates it around the center axis of the cylindrical operating part 20 as a rotation axis, the miniature camera 10 is bonded to the fixed part 31, and the fixed part 31 is held in the immobile state by the user's holding a grip part integral with the body case 30. As a result, the position of the image visible from the monitor is not rotated, so that the stable image of teeth in the oral cavity can be supplied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small camera dental mirror device, and uses a small camera or the like to stabilize and use the direction of an output image in order to see a portion such as the back side of a tooth which is difficult to see from the front in an oral cavity. The present invention relates to a dental mirror device for a small camera.

[0002]

2. Description of the Related Art Conventionally, as this kind of intraoral camera, there has been an intraoral camera in which, for example, an endoscope provided with a mirror is provided at the tip of a handle in an inclined manner. However, with this intraoral camera, when you insert yourself into your own oral cavity, you see the plaque of the teeth, dirt caught between the teeth, and the back of the teeth that are difficult to see from the front of the oral cavity Since the direction of the output image is unstable, the direction of the image may be turned upside down and the sense of direction may be lost, resulting in poor efficiency.

In view of the above, conventionally, for example, as disclosed in Japanese Utility Model Application No. 9-186327, a light source for illumination is provided in an intraoral camera mirror.

[0004]

However, the above-mentioned conventional intraoral camera of this type performs an inspection by a third party, and in other words, the direction of an output image when a user looks at his own teeth. Due to the instability, the direction of the image is turned upside down and the sense of direction is lost, making it difficult to see.

[0005] The present invention has been made to solve the above problems, and therefore, the technical problem of the present invention is that a third party performs an inspection except for the user's own teeth. Because the orientation of the output image is unstable for viewing, the orientation of the image is not reversed and the sense of direction is not lost, and when inserted into one's own mouth by himself, dental plaque or tooth An object of the present invention is to provide a dental mirror device for a small camera for viewing, with a monitor or a computer, a portion such as dirt sandwiched between the teeth and the back side of a tooth which is difficult to see from the front in the oral cavity.

[0006]

Means for Solving the Problems and Effects of the Invention In order to achieve the object, a dental mirror apparatus for a small camera according to the present invention comprises the small camera and an end of the small camera on the objective lens side. A cylindrical portion having an insertion hole in which a portion near the end portion on the objective lens side of the small camera is inserted, and protruding from at least a part of the end portion on the objective lens side of the cylindrical portion, A shaft extending in a direction away from the end, provided at the end of the shaft so as to enter the field of view of the objective lens, and when inserted into the oral cavity, plaque of a tooth or being caught between teeth; A cylindrical operation unit having a dental-type mirror inspection unit configured to detect waste, and that the cylindrical operation unit moves in a direction along a central axis of the shaft with respect to the small camera. Control and the cylindrical operation part is Characterized by comprising a cylindrical operating portion holding means which make it possible to rotate the central shaft portion of the shaft portion as a rotation axis with respect.

[0007] According to the dental mirror device for a small camera of the present invention configured as described above, the field of view of the objective lens is provided in the range of the dental mirror endoscope, so that the oral cavity is passed through the objective lens. An image such as dental plaque or dirt caught between the teeth when inserted into the apparatus can be captured by a small camera. Then, the captured image is output to output means provided at the opposite end of the small camera.

Further, in the present invention, since the cylindrical operating portion is held by the small camera by the grip portion provided so as to be integral with the cylindrical operating portion holding means, the output is output to the output means. The direction of the image does not change depending on the direction of the dental mirror inspection unit. In other words, although the movement of the cylindrical operation unit with respect to the small camera in the direction along the central axis of the insertion hole is regulated by the grip unit provided so as to be integral with the cylindrical operation unit holding means unit, Since rotation with respect to a small camera with the center axis of the hole as a rotation is possible, even if the direction of the dental mirror inspection unit (cylindrical operation unit) is rotated with the center axis of the insertion hole as a rotation, the small camera will not rotate. It does not rotate integrally with the dental mirror examination unit. Therefore, the image output to the output unit does not rotate with the rotation of the dental mirror inspection unit, and the direction of the output image is constant.

In the present invention, the cylindrical operating portion holding means may include a fixed engaging portion fixedly provided near an end of the small camera on the objective lens side, and the cylindrical operating portion. And a tubular operating portion side engaging portion engaged with the fixed engaging portion.

Here, the mode of the fixed engaging portion and the cylindrical operating portion side engaging portion are particularly limited as long as they function as cylindrical operating portion holding means in a state of being engaged with each other. Instead, for example, the fixed engaging portion and the tubular operating portion side engaging portion may be configured as rail grooves or projecting pieces as described below.

That is, a fixing portion having a portion disposed in the insertion hole of the cylindrical portion and having a through hole in which a portion near the end portion on the objective lens side of the small camera is fitted. A rail groove extending in the circumferential direction is formed in one of the outer peripheral surface of the portion and the inner peripheral surface of the insertion hole of the cylindrical portion, and the rail groove is formed between the fixed portion and the inner peripheral surface of the insertion hole of the cylindrical portion. The rail groove may be formed with a protruding piece rotatably slidably fitted at a location corresponding to the other rail groove having no groove. In this embodiment, one of the rail groove and the projection piece provided on the fixed portion corresponds to a fixed engagement portion, and the other provided on the inner peripheral surface of the insertion hole of the cylindrical portion has a cylindrical shape. It corresponds to the operating section side engaging section.

In this embodiment, when the cylindrical operating portion is rotated with the center axis of the insertion hole as the rotation axis, the protrusion slides in the rail groove, so that the small-sized camera is not rotated and the cylindrical operating portion is not rotated. It becomes possible to rotate only. on the other hand,
Even if the user tries to move the cylindrical operation unit with respect to the small camera in the direction along the center axis of the insertion hole, the movement is restricted by the engagement between the projection and the rail groove.

In order to surely prevent the small camera from rotating in conjunction with the cylindrical operation unit when the cylindrical operation unit is rotated with the center axis of the insertion hole as the rotation axis,
It is preferable to provide a grip near the small camera. In this way, a change in the direction of the output image can be reliably prevented.

It is connected to a personal computer or the like and viewed through a monitor.

On the other hand, in the present invention, a light source for illumination
A power supply cable provided along the miniature camera and configured to supply power to the illumination light source disposed near the end of the miniature camera on the objective lens side; Is preferred.

With this configuration, the light from the illumination light source, which emits light upon receiving power supply from the power supply, is transmitted to the end of the cylindrical illumination light transmitting means disposed near the end of the small camera on the objective lens side. Therefore, when the endoscope section is inserted into the oral cavity, the inside of the oral cavity can be illuminated with the light transmitted to the end of the illumination light transmitting means. Therefore, it is possible to preferably capture an image of the oral cavity with a small camera.

In addition, the intraoral lighting means is provided as described above,
Further, in the aspect in which the cylindrical operation portion holding means includes the fixed engagement portion and the cylindrical operation portion fixed engagement portion, the illumination light source is provided so as to be integral with the fixed engagement portion. It may be provided in the storage case.

In this way, the storage case becomes easy to handle when the small camera dental mirror device is used. In addition, when the illumination light source is disposed in the storage case integrated with the fixed engagement portion, the distance between the illumination light source and the end of the small camera on the objective lens side is shortened. In addition, the total length of the illumination light transmitting means can be shortened.

Further, the storage case in which the light source for illumination is stored functions as a grip portion near the end of the small camera, and when the cylindrical operation portion is rotated about the center axis of the insertion hole as the rotation axis, the cylindrical case is rotated. It is possible to reliably prevent the small camera from rotating in conjunction with the shape operation unit.

Further, in the present invention, the illumination light transmitting means at a position near an end of the small camera on the objective lens side may be the cylindrical portion made of a light transmitting material.

In the present invention, a toothbrush may be provided all around the resin portion at the edge of the dental mirror endoscope.

In this way, the user can brush his / her teeth with a toothbrush while checking the endoscope. In addition, a third party can brush his / her teeth with a toothbrush while checking the inside of the mouth of the other party using the dental mirror device for a small camera.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a perspective view showing an overall configuration of a dental mirror apparatus 1 for a small camera as an embodiment of the present invention. As shown in FIG. 1, the dental mirror device 1 for a small camera according to the present embodiment includes a small camera 10, a tubular operation unit 20, and a main body 30. Dental mirror device for small camera 1
Is the cylindrical operation unit 20 of the dental mirror device 1 for a small camera.
By inserting the endoscope unit 28 (described later) of the
It is configured so that an image in the mouth taken into the small camera 10 can be seen and confirmed.

First, the configuration of the dental mirror device 1 for a small camera will be described with reference to FIG. Here, FIG.
FIG. 2 is a longitudinal sectional view showing a structure in the vicinity of a cylindrical operation unit 20 in the dental mirror device 1 for a small camera.

The tubular operating section 20 comprises a tubular section 21 and an endoscope section 28, and is arranged near the end of the small camera 10 on the objective lens side. The cylindrical portion 21 is a long member having an insertion hole 22 into which a portion near the end of the small camera 10 on the side of the objective lens 11 is inserted, and is outside the portion near the front end 26 which is the end on the side of the objective lens 11. The diameter is reduced so that it can be inserted into the oral cavity. The tubular portion 21 is formed of a light transmitting material such as a transparent resin.

The insertion hole 22 is a hole provided along the longitudinal direction of the cylindrical portion 21. The insertion hole 22 has an open end 23 only at the rear end 26 of the cylindrical portion 21, and the small camera 10 is inserted from the open end 23. That is, the end of the insertion hole 22 opposite to the opening end 23 is closed by the cover plate 24, and the cover plate 24 is provided so that the objective lens 11 of the small camera 10 inserted into the insertion hole 22 is not exposed to the outside. It covers the objective lens 11.

The shape of the inner peripheral surface of the insertion hole 22 is configured such that the cross section taken along an arbitrary plane whose normal direction is the longitudinal direction of the insertion hole 22 is substantially circular. The inner diameter of the insertion hole 22 is in the axial direction (longitudinal direction) of the insertion hole 22.
Along two different stages. That is, first, in the insertion hole 22

The open end 2 on the outer peripheral surface of the large diameter portion 22
3 is provided with a projection 2 as a cylindrical operating portion side engaging portion.
5 are provided. The protrusion 25 is formed so as to extend in the circumferential direction on the outer peripheral surface of the large diameter portion 22a. The projection 25 has a projection piece 33 (described later) provided on the main body case 30 rotatably slidably fitted thereto.

As shown in FIGS. 1 and 2, the endoscope unit 28
Is connected to the tubular portion 21, that is, the endoscope 2
8 protrudes in a direction away from the front end 26, and the endoscope 28 is positioned within the field of view of the objective lens 11. Furthermore,
The endoscope 28 has an inclination angle of 40 ° to 50 ° with respect to the central axis of the small camera 10 axis, and a mirror 29 is attached to the endoscope 28.

The fixed part 31 is provided along the longitudinal direction of the portion near the end of the small camera 10 on the objective lens 11 side.
It comprises an insertion shaft portion 39 extending to one side and a main body case 30. The main body case 30 and the fixing portion 31 are formed of a resin material.

The fixing portion 31 is provided with a through hole 32. The through-hole 32 is a hole that penetrates a portion up to the rear end 31a of the fixing portion 31, and the small camera 10 is fixed to the through-hole 32 in a state where it penetrates. Specifically, the fixing portion 31 and the small camera 10 are fixed with an adhesive or the like such that a portion near the end of the small camera 10 on the side of the objective lens 11 projects from the opening 32a of the through hole 32 end 31a. ing.

As described above, the portion near the end 31a of the insertion shaft portion 39 is inserted into the large-diameter portion 22a of the insertion hole 22.
5, a projection 33 is provided as a fixed diameter portion. The protruding piece 33 is formed so as to extend below the outer peripheral surface of the insertion shaft portion 39, and in this embodiment,
The lower part of the outer peripheral surface is configured as a projection. The projection piece 33 is rotatably slidably fitted to the projection 25. That is, the cylindrical operation unit 20 is set with the center axis of the insertion hole 22 as the rotation axis.
When the is rotated, the projection piece 33 slides inside the projection 25, so that only the tubular operation section 20 can be rotated in a state where the fixed section 31 (and thus the small camera 10) does not move. On the other hand, even if the user tries to move the cylindrical operation unit 20 with respect to the fixed unit 31 (and thus the small camera 10) in the direction along the central axis of the insertion hole 22, the movement is such that
5 will be regulated.

As shown in FIG. 2, the main body case 30 includes a fixing portion 31 and a storage portion 37. The storage unit 33 is a housing that stores the illumination light source 35 (such as a light-emitting diode) and the cable 12 that supplies power to the illumination light source 35. The storage unit 33 turns ON / OFF the power supply to the illumination light source 35.
A power switch 37 for switching off is provided.

Further, in this embodiment, when the user holds the main body case 30 and the cylindrical portion 21, the main body case 30 is held in a state where the main body case 30 is held so as not to move between the user's thumb and index finger. For example, it is possible to reliably prevent the small camera 10 from rotating in conjunction with the rotation of the tubular operation unit 20.

At this time, light from the illumination light source 35 enters the cylindrical portion 21 from the vicinity of the rear end 26b of the cylindrical portion 21 provided along the small camera cable 12 near the objective lens 11 (specifically, insertion After being introduced into the cylindrical portion 21 via the insertion shaft portion 39 inserted into the hole 22 and propagating in the cylindrical portion 21, the light is reflected from the front end 26 a via the mirror 29 in the endoscope 28. Illuminate the mouth. Therefore, the small camera 10
Is preferably performed.

An endoscope section 28 projecting from the front end 26a of the cylindrical section 21 has an inclination angle of 40 ° to 50 ° with respect to the central axis of the small camera 10, and a mirror 29 is attached to the endoscope section 28. Provided in the field of view of the objective lens 11.

Further, in the present embodiment, the cylindrical operation unit 20
Is held by the small camera 10 by the engagement between the projection piece 33 and the projection 25, so that the direction of the image viewed by the user via the objective lens 11 depends on the direction of the endoscope section 28. Never change.

That is, as described above, the cylindrical operation unit 20
Since the rotation about the center axis of the insertion hole 22 can be performed without the movement of the small camera 10, the cylindrical operation unit 20 can be rotated around the center axis of the insertion hole 22.
Is rotated, the image in the oral cavity formed on the objective lens 11 does not rotate with the rotation of the endoscope unit 28,
The direction of the image is constant.

In this embodiment, since the objective lens 11 of the small camera 10 is covered with the cover plate 24 in the cylindrical portion 21, the objective lens 11 is smaller than the case where the cover plate 24 is not provided.
The cylindrical operation unit 2 after using the small camera dental mirror device 1
Remove the saliva attached near the front end 26a of 0, or
The objective lens 11 of the small camera 10 can be used for a long period of time without any trouble by replacing the cylindrical operation unit 20.

In this embodiment, the combination of the fixed part 31 and the cylindrical part 21 corresponds to the illumination light transmitting means of the present invention.

In the first embodiment, the fixing portion 31
The interior of the fixed portion 31 and the cylindrical portion 21 is made of the illumination light source 3 by forming the cylindrical portion 21 from a light transmitting material.
5 is configured to propagate.

Incidentally, the dental mirror apparatus 1 for a small camera according to the first embodiment is also provided with an inspection instrument with a toothbrush in which a toothbrush 40 is attached to a resin portion at the edge of the mirror 29 provided with a mirror 29 in an inspection scope section 28. is there.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of a dental mirror device for a small camera according to a first embodiment.

FIG. 2 is a longitudinal sectional view showing a structure near a cylindrical operation unit in the dental mirror device for a small camera according to the first embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Dental mirror device for small cameras, 10 ... Small camera, 11 ... Objective lens, 12 cables, 20 ... Cylindrical operation part, 21 ... Cylinder part, 22 ... Insertion hole, 25 ... Protrusion, 28 ...
Endoscope section, 29 mirror, 30 main body case, 31 fixed section, 32 through hole, 33 holding projection, 35 light source for illumination,
36: power switch, storage section 37, insertion shaft section 39

Claims (8)

[Claims] An object lens is provided, and said camera has a transmission means for transmitting an image captured from said objective lens through a cylindrical small camera holding a ccd element. A cylindrical portion having an insertion hole in which a portion near the end portion on the objective lens side of the small camera is disposed near the end portion on the objective lens side, at least an end portion of the cylindrical portion on the objective lens side; A cylindrical operating portion having a shaft portion protruding from a part and extending in a direction away from the end portion, a dental mirror viewing portion provided at the end of the shaft portion so as to enter a field of view of the objective lens, The cylindrical operation unit regulates movement of the small camera in the direction along the central axis of the small camera shaft, and the cylindrical operation unit controls the movement of the small camera shaft with respect to the small camera. The center axis is the rotation axis And a cylindrical operation unit holding means that enables rotation. 2. The dental mirror inspection unit of the cylindrical operation unit provided near an end of the cylindrical small camera on the objective lens side has an inclination angle of 40 ° with respect to a central axis of the small camera shaft. And in the range of 50 °, the dental mirror inspection part, and a cylindrical operating part side engaging part provided in the cylindrical operating part and engaged with the cylindrical part, characterized by comprising: The dental mirror device for a small camera according to claim 1. 3. An illumination light source, and a power supply cable provided along the small camera and configured to supply power to the illumination light source disposed near an end of the small camera on the objective lens side. Wherein the illumination light source, the illumination transmission cable, and the power switch are provided as a storage case in a grip portion provided so as to be integrated with the tubular operation portion holding means portion. The dental mirror device for a small camera according to claim 1 or 2, wherein: 4. An oral cavity comprising: an illumination light source; and a battery provided along the small camera and provided with power to the illumination light source disposed near an end of the small camera on the objective lens side. An internal illumination unit is provided, and the illumination light source, the illumination transmission cable, and the power switch are provided as a storage case in a grip unit provided so as to be integrated with the tubular operation unit holding unit unit. The dental mirror device for a small camera according to claim 1. 5. The dental mirror device for a small camera according to claim 1, wherein the illumination light source is provided in a direction along a central axis of the small camera. 6. An illumination light transmitting means at a position near an end of the small camera on the objective lens side is the cylindrical portion made of a light transmitting material. A dental mirror device for a small camera according to any one of the above. 7. A grip portion provided integrally with the cylindrical small camera and the cylindrical operating portion holding means portion for stabilizing an image of the cylindrical small camera, and the grip portion is provided. The dental mirror device for a small camera according to any one of claims 1 to 5, wherein a stable image is supplied without rotating the cylindrical small camera by gripping with a hand. . 8. The apparatus according to claim 1, wherein a toothbrush is attached to a resin portion of the edge of the mirror provided in the mirror in the inspection part.
The dental mirror device for a small camera according to any one of claims 1 to 6.