JPH0362096B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <<Industrial Application Field>> The present invention relates to a lighting device for illuminating the inside of the oral cavity during dental treatment.

<<Prior Art>> In general, a lighting device for dental treatment has a lighting device attached to the tip of a flexible arm, which is arranged so that the irradiation direction and holding position can be adjusted and changed as desired from diagonally above the treatment table.

This lighting device is generally called a surgical light, and in order to effectively illuminate the inside of the oral cavity during treatment, the reflector is formed into a curved surface, and the light source lamp is placed inside the curved surface. The lamp was constructed so that it would not cast a shadow on the oral cavity even if the surgeon blocked part of the illumination beam from the lamp for medical treatment, and the front side (patient side) of the light source lamp was covered with a light source cover. .

<<Problems to be Solved>> In conventional lighting fixtures, the front surface of the lighting fixture is optically open except for the light source cover in order to improve lighting efficiency. For this reason, for example, when a patient wants to check the state of wearing dentures, or when visually confirming the details of treatment, the patient or surgeon (assistant, etc.) uses a hand mirror to inspect the inside of the mouth and the mouth. There was the inconvenience of having to watch it. At this time, there is a problem that adjusting the mirror surface of the hand mirror to the optimal angle is troublesome and time-consuming, and it also places a heavy burden on the patient and the operator.

In addition, when viewing the inside of the oral cavity with a mirror, it is necessary to illuminate the inside of the oral cavity with a lighting device, but in this case, the lighting must be done while avoiding a hand mirror, so the position of the lighting device and its irradiation are important. Another problem was that the direction had to be finely adjusted and changed.

Furthermore, it is desirable for both the patient and the surgeon to have both hands free in terms of efficiency when giving instructions on how to fit dentures.
Because the patient or surgeon is holding a hand mirror,
There is a problem that efficiency decreases.

<Means for Solving the Problems> The present invention secures the freedom of both hands of the patient and the operator, and allows the patient to easily examine the inside of the oral cavity using a mirror while the inside of the patient's oral cavity is illuminated with a lighting device. In order to make it visible, the first invention makes it possible to attach a mirror body to a lighting device that includes an irradiation part and an irradiation part support part, and at least when the mirror body is used, the mirror body is placed in front of the reflection plate. At least one of the illumination device components, which is composed of an irradiation section and an irradiation section support section, is positioned so that the mirror is in a posture in which the mirror surface of the mirror is substantially orthogonal to the illumination beam from the reflector. The second invention is characterized in that a mirror body is attached to a lighting fixture comprising an irradiation part and an irradiation part support part, and this mirror body is attached to a reflector plate. It is located in a part of the irradiation area at the front and can be switched between a mirror usage position where the mirror surface of the mirror body is almost perpendicular to the illumination beam from the reflector, and a mirror non-use position where the mirror body does not obstruct the illumination beam. It is characterized by the fact that it has been formed.

<<Function>> In the first invention, a mirror body can be attached to a lighting device comprising an irradiation part and an irradiation part support part, and at least when the mirror body is used, the mirror body is located in front of the reflection plate, and The mirror body is configured to be held by the lighting fixture components so that the mirror surface is substantially orthogonal to the illumination beam from the reflector plate.
When using the mirror, both the patient and the operator have both hands free, and the relative relationship between the mirror surface and the illumination beam remains constant at all times, making it easier to align the lighting equipment.

Further, in the second invention, a mirror body is attached to a lighting device including an irradiation part and an irradiation part support part, and this mirror body is located in a part of the irradiation area in front of the reflection plate, and The mirror is configured to be switchable between a mirror usage position in which the mirror surface is almost orthogonal to the illumination beam from the reflector and a non-mirror position in which the mirror surface does not obstruct the illumination beam, making it easy to set up the mirror. When setting up the mirror, the patient can visually check the inside of the oral cavity by simply aligning his/her line of sight with the mirror surface.

《Example》 The drawings show an example of the present invention. Figure 1 is an overall perspective view, Figure 2 is a partially cutaway plan view, Figure 3 is a longitudinal sectional view of the main part, and Figure 4 shows the state in use. FIG.

Around the dental treatment table 1, there is an instrument table (not shown).
An illumination device 2 is arranged together with an X-ray imaging device (not shown), and this illumination device 2 has a flexible arm 4 extending from a wall surface 3, as shown in FIG. 4, for example.
An irradiation unit I is pivotally mounted on the tip of the dental treatment table 1, and its irradiation direction and lighting fixture holding position can be arbitrarily set at a position diagonally above the dental treatment table 1.

Reference numeral 5 in the figure is a lighting fixture, and this lighting fixture 5 is
A container frame portion 6 having a parabolic cross section, a reflector 7 fixed to the inner surface of the container frame portion 6, a light source lamp 8 disposed near the focal point of the parabola, and a light source lamp 8.
It consists of an irradiation section I consisting of a light source cover 9 that covers the front side (examination table side) of the irradiation section I, and an irradiation section support section H consisting of a flexible arm 4 and a connecting arm 4a that swingably support this irradiation section I. .

A mirror body 11 is pivotally supported on both side walls 10 of the light source cover 9 so as to be able to swing up and down. This mirror body 11 includes a plane mirror 15 and a frame 16 that holds the plane mirror 15.
It is made up of. The plane mirror 15 has a mirror surface 12 formed at its central portion by an ordinary mirror 13 and by semi-transparent mirrors 14 at both left and right sides. Further, a positioning protrusion 17 is provided to protrude from the back surface of the frame 16 toward the front side surface 18 of the light source cover 9, and the positioning protrusion 17 is formed of a magnetic material such as an iron plate.

On the other hand, receiving portions 20 and 21 for the positioning protrusion 17 are formed on the front side surface 18 and the top surface 19 of the light source cover 9. The receiving part 20 provided on the front side surface 18 of the light source cover 9 receives the positioning protrusion 17 of the mirror body 11 from below, and the mirror body 11 is placed in front of the reflector plate 7 so that its mirror surface 12 receives the light from the lighting fixture 5. It is formed at a position where it can be held in a mirror usage posture M perpendicular to the axis L. In addition, the upper surface 19 of the light source cover 9
The receiving part 21 provided in the mirror body 11 is completely retracted from the irradiation surface of the lighting fixture 5 and held in a mirror-unused position U in which the mirror body 11 is parallel to the optical axis L on the upper surface 19 of the light source cover 9. It is located where possible. Magnets 22 are disposed in both the receiving parts 20 and 21, and by attracting the positioning protrusion 17 made of a magnetic material with the magnets 22, the mirror body 11 can be adjusted to the mirror usage posture M without wobbling. The mirror is held in posture U when the mirror is not used.

As in this embodiment, if the mirror surface 12 is configured with semi-transparent mirrors 14 near both left and right ends, when the mirror body 11 is held in the mirror use posture M with the lighting fixture 5 turned on, the semi-transparent The mirror 14 reduces the light from the reflector 7 and softens the light beam, so even if the patient focuses his/her line of sight on the mirror surface 12, the patient will not be dazzled.

Furthermore, if the configuration is such that most of the mirror surface 12 of the mirror body 11 is located in the upper half of the irradiation area of the illumination device 5 in the mirror usage posture M as in this embodiment, the patient directs his/her line of sight to the mirror surface 12. You can visually check the inside of your mouth just by adjusting the camera. Moreover, at that time, the line of sight and the illumination beam do not intersect, so there is no glare.

FIG. 5 shows another embodiment of the present invention, in which a cover 2 is attached to the rear portion of the upper surface 19 of the light source cover 9.
3 is swingably supported, the cover 23 is urged toward the light source cover upper surface 19 side by a return spring 24, and a cam protrusion 25 is provided protruding from the upper end of the frame 16 of the mirror body 11. The cover 23 is swung open and closed in conjunction with the attitude switching operation of the mirror body 11,
The mirror surface 12 of the plane mirror 15 is covered with a cover 23 while the mirror body 11 is held in the non-mirror position U. In FIG. 5, reference numeral 26 is a spacer for receiving the cover 23 parallel to the light source cover top surface 19, and this spacer 26 projects integrally from the light source cover top surface 19. Note that the spacer 26 may be provided to protrude from the cover 23 side.

If the cover 23 is provided in this way, when the mirror body 11 is held in the non-use position U during medical treatment, the influence on the operator etc. due to the mirror body 11 reflecting light from the ceiling lighting device can be eliminated. In addition, it is possible to prevent the mirror surface 12 from becoming dirty due to adhesion of dust or the like.

FIG. 6 shows a third embodiment, in which a mirror body 11 is supported on the front side surface 18 of the light source cover 9 so as to be rotatable in a plane orthogonal to the optical axis L. In this case, there is a mirror usage posture M in which the mirror body 11 extends to the left and right sides of the light source cover 9 as shown by solid lines, and a non-use mirror position M in which the mirror body 11 is along the front wall 18 of the light source cover 9 as shown in phantom lines. It is formed so that the posture can be maintained in the posture U. In the non-mirror position U, the mirror body 11 hardly protrudes to the side of the light source cover 9, so the mirror body 11 does not obstruct the illumination light beam.

FIG. 7 shows a fourth embodiment, in which the mirror body 11
is swingably supported by the frame part 6 of the lighting fixture 5, and a support arm 27 extending from the frame 16 of the mirror body 11 is supported by the frame part 6 using a ball joint 28. By swinging the mirror body 11 around the ball joint 28, the mirror surface 12 of the mirror body 11 is aligned with the optical axis L within the irradiation area of the lighting fixture 5.
The mirror usage posture M that is perpendicular to the mirror body 11
The mirror is switched to a non-use position U in which the mirror is retracted outside the irradiation area of the lighting device 5.

FIG. 8 shows a fifth embodiment, in which the mirror body 11 is formed so that it can be folded in two at the center in the left and right direction,
The left half 11L and right half 11R of the mirror body 11 are supported by the front wall 18 of the light source cover 9 by links 29, respectively. In this case, in the non-use position U in which the mirror body 11 is folded in half, the left end of the left half 11L and the right end of the right half 11R should not protrude from the side of the light source cover 9. A state in which the mirror body 11 is flat is defined as a mirror non-use position U, and a mirror use position M is defined as a state in which the mirror body 11 forms a flat surface.

9 and 10 show an example in which the reflector 7 is applied to a lighting fixture 5 arranged vertically, and the sixth embodiment shown in FIG.
The upper end of the mirror body 11 is pivotally supported on the side wall 30 of the container frame portion 6, so that the mirror body 11 can be flipped up and rocked.The seventh embodiment shown in FIG. The vertical center part of the mirror body 11 is the container frame part 6
By pivoting the side wall 30 of the mirror body 11, the mirror body 11 is configured to be rotatable.

In the case of both of these embodiments, the mirror surface 12 is formed so as to be perpendicular to the optical axis L in the mirror posture M, and parallel to the optical axis L in the non-mirror posture U. be.

FIG. 11 shows an eighth embodiment, in which a mirror body 11 is attached to a flexible arm 4, which is a lighting device component C, which pivotally supports a container frame portion 6 so as to be able to move up and down. It was a central support. A mirror support portion 31 is formed on the side edge of the container frame 6 so that the mirror surface 12 forms a direct optical surface with the optical axis L when the container frame 6 is received. Furthermore, a mirror body 11 is mounted on the upper surface of the flexible arm 4.
A receiving member 32 is formed to support the mirror in the non-use position U, which is retracted from the irradiation area.

Although not shown in the drawings, in a lighting fixture in which the reflector plate 7 is arranged in the left-right direction, the mirror body 11 is supported by the connecting arm 4a of the vessel frame portion 6 so as to be horizontally swingable, and the mirror body 11 is arranged in the irradiation area. It may be possible to switch between a mirror-using posture M in which the mirror is located inside the mirror and a mirror-not-using posture U in which the mirror is retreated from the irradiation area.

FIG. 12 shows a ninth embodiment, in which the mirror body 11 is disposed at the upper edge of the container frame portion 6 in a state that it can be divided into two parts, and each divided body 11U, 11D is swung to the container frame portion 6. By movably supporting the mirror, it is configured to be switchable between a mirror using position M and a mirror non-using position U. In the mirror non-using position U, the mirror surface 12D of the lower divided body 11D partially covers the reflecting plate. This is what I did. In FIG. 12, reference numeral 33 indicates a mirror usage position M in which the mirror body 11 is perpendicular to the optical axis L of the lighting fixture 5.
This posture holding member 33 is formed of a magnet that protrudes vertically from the container frame portion 6, and is designed to attract and hold the support arm 34 of the mirror body 11 formed of a magnetic material. It's summery. Further, reference numeral 35 denotes a posture holder for holding the lower divided body 11D in the container frame portion 6 in the mirror non-use posture U, and this posture holder 35 is also formed of a magnet.

FIG. 13 is an exploded perspective view showing a modification of the present invention, in which a mirror supporting engagement frame 36 is provided on the front surface 18 of the light source cover 9, and an engagement frame 36 is provided on the back surface of the frame 16 of the mirror body 11. A protrusion 37 is formed so that the mirror body 11 can be attached to and detached from the container frame portion 6. Also in this case, when the mirror body 11 is attached to the vessel frame portion, the mirror surface 12 is arranged to form a plane perpendicular to the optical axis L of the lighting fixture 5.

In each of the embodiments described above, the mirror surface 12 is composed of the normal mirror 13 and the semi-transparent mirror 14, but the entire mirror surface may be composed of a normal mirror. In this case, the lighting fixture 5 is configured to be able to adjust the amount of light, and when the mirror body 11 is switched to the mirror usage position in the lit state, the lighting fixture 5
It is recommended to use dimming.

In addition, when the mirror is set in the usage position, as described in the first embodiment, if most of the mirror surface is positioned above the central optical axis, it will be easier to visually check the inside of the oral cavity. Moreover, the lighting efficiency as a lighting device will not decrease.

Further, in each of the embodiments described above, the mirror body 11 is made of a plane mirror, but it may be made of a curved mirror with a gentle curvature.

<<Effects>> In the present invention, in a lighting device for dental treatment that irradiates reflected light into the oral cavity, a mirror body can be attached to the lighting device, and at least when the mirror body is used, the mirror body is in front of the reflector plate. Since the mirror body is held by the illuminator components in such a way that the mirror body is in a position where the mirror surface is almost orthogonal to the illumination beam from the reflector, both the patient and the surgeon need to use both hands when using the mirror. In addition, since the relative relationship between the mirror surface and the illumination beam is always constant, it is possible to easily align the lighting equipment. This reduces the burden on both the patient and the surgeon when using a mirror to visually inspect the patient's oral cavity, such as during instruction on denture fitting, and the time required for visual inspection is also shortened. The rotational efficiency is also improved.

In addition, in the second invention, since the illumination device is configured to support the mirror body in a manner that allows the posture to be changed, the illumination light can be directed to the oral cavity by simply switching the mirror to the usage posture during brushing instruction during denture wearing instruction. The mirror can be set in a position where the patient can easily see the patient while still irradiating the inside of the patient.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is a partially cutaway plan view, Fig. 3 is a vertical sectional view of main parts, Fig. 4 is a view showing the state of use, and Fig. 5 6 is a perspective view of the third embodiment; FIG. 7 is a perspective view of the fourth embodiment; and FIG. 8 is a plan view of the main portion of the fifth embodiment. , Fig. 9 is a perspective view of the sixth embodiment, Fig. 10 is a perspective view of the seventh embodiment, and Fig. 11 is a perspective view of the seventh embodiment.
12 is a side view of the main part of the eighth embodiment, FIG. 12 is a side view of the main part of the ninth embodiment, and FIG. 13 is a perspective view of the tenth embodiment. 5... Lighting equipment, 6... Instrument frame portion, 7... Reflector plate, 8... Light source lamp, 9... Light source cover, 11
...Mirror body, 12...Mirror surface, 14...Semi-transparent mirror, 2
3... Cover, M... Mirror use position, U... Mirror non-use position, I... Irradiation part, H... Irradiation part support part, C...
...Lighting equipment components.

Claims (1)

[Claims] 1. In a lighting device that illuminates the inside of the oral cavity by reflecting light from a light source with a reflector, a mirror body can be attached to the lighting device comprising an irradiation part and an irradiation part support part. The irradiating unit and the irradiating unit support are arranged so that at least when the mirror is used, the mirror is positioned in front of the reflector and the mirror surface is substantially orthogonal to the illumination beam from the reflector. 1. A lighting fixture for dental treatment, characterized in that at least one of the lighting fixture constituent members comprising a portion and a mirror body is configured to hold a mirror body. 2. The lighting device for dental treatment according to claim 1, wherein the lighting device component that holds the mirror body in the mirror use posture is a frame member that holds the reflector. 3. The lighting device for dental treatment according to claim 1, wherein the lighting device component that holds the mirror body in the mirror use posture is a light source cover that covers the front surface of the light source lamp. 4. The lighting device for dental treatment according to claim 1, wherein the lighting device component that holds the mirror body in the mirror use posture is an arm that supports the irradiation section. 5. The lighting device for dental treatment according to any one of claims 1 to 4, wherein portions near both ends of the mirror surface are made of semi-transparent mirrors. 6 Claim 1 in which most of the mirror body is located in the upper half of the reflector when the mirror is used in a posture
The lighting device for dental treatment according to any one of Items 1 to 5. 7 In a lighting device that illuminates the inside of the oral cavity by reflecting light from a light source with a reflector, a mirror body is attached to the lighting device comprising an irradiation part and an irradiation part support part, and this mirror body is reflected. It is located in a part of the irradiation area in front of the plate and can be switched between a mirror usage position where the mirror surface of the mirror body is almost orthogonal to the illumination beam from the reflector, and a mirror non-use position where the mirror surface does not interfere with the illumination beam. A lighting device for dental treatment, characterized in that it is formed into a. 8. According to claim 7, the mirror body is pivotally supported on the side wall of the light source cover covering the front surface of the light source lamp so as to be able to move up and down, and the mirror body is held above the light source cover when the mirror is not in use. The lighting equipment for dental practice described. 9. The lighting device for dental treatment according to claim 8, wherein a cover is supported on the upper side of the light source cover so that the mirror surface of the mirror is covered with the cover when the mirror is not in use. 10. The lighting device for dental treatment according to any one of claims 7 to 9, wherein the left and right end portions of the mirror surface are formed of semi-transparent mirrors. 11. The lighting device for dental treatment according to any one of claims 7 to 10, wherein most of the mirror body is located in the upper half of the reflector when the mirror is used in a posture.