JPH01190349A - Illumination device of dental handpiece - Google Patents

Abstract

PURPOSE:To enhance dental diagnostic and treatment results and to reduce the fatique of a dentist, by allowing the light from an external light source to be incident to an illumination fiber bundle through a collector and emitting the same from the leading end of the fiber bundle freely detachable to a handpiece to illuminate the affected part. CONSTITUTION:A condensing lens 12 is mounted to the upper part of a collector main body 11 and an illumination fiber bundle 7 is mounted to the lower part of said main body on the incident end side thereof in a freely detachable manner by a screw clamp 13 and the collector main body 11 is mounted to the bracket 14, which is mounted to a support 9 in a freely movable manner, in a freely revolvable manner, for example, through a known ball joint. Further, the emitting end of the illumination fiber bundle 7 constituted of optical fibers rich in flexibility can be mounted to a handpiece 1 at the position almost coinciding with the leading end part of the handpiece 1 in a freely detachable manner for example, through the clip spring 15 mounted to the fiber bundle.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an illumination device for a dental handpiece using a relatively short Jt flexible optical fiber that can be detachably attached to the handpiece. For details, see the dental equipment that allows illumination light from an existing light source device to enter an illumination fiber bundle via a collector, and then outputs it from the tip of a fiber bundle attached to a handpiece to directly illuminate the affected area. The present invention relates to a lighting device for a handpiece.

[Conventional technology]

Recently, optical fibers for illumination have been integrally incorporated into handpieces, and they have also been enclosed in, for example, connection pipes for driving air turbines, so that illumination light from a light source lamp installed outside can be transmitted through the optical fibers. Dental handpieces that can transmit light and directly illuminate the affected area are being used.

[Problem to be solved by the invention]

This type of handpiece has a structure in which an illumination fiber bundle is enclosed in a long connecting tube that connects the handpiece and an air turbine drive device that can be installed externally, so the weight of the connecting tube is heavy and the handpiece is difficult to handle. This significantly impairs the operability of the piece, making dental treatment difficult, increasing the fatigue of the operator, and further increasing the cost of the device itself.

[Means and effects for solving the problems] The handpiece illumination device of the present invention transmits illumination light from an external light node into an illumination fiber bundle through a collector provided near the patient's head or upper body. By making it possible to illuminate the affected area by emitting it from the tip of the fiber bundle attached to the handpiece, the length of the illumination fiber bundle can be significantly shortened and the operability of the handpiece can be improved. Closed.

〔Example〕

1 and 2 are schematic diagrams showing a first embodiment of the illumination device according to the present invention, where l is a normal dental handpiece, 2 is an air turbine drive device, and 3 is an air turbine drive device. A connecting tube 4 is an external light source device attached to the examination table 5, etc. A support 9 fixed to a clamp 10 is erected upward on a fixed plate 8 which is placed on the upper part of the examination table 5. It has been done.

A collector 6 for condensing illumination light from an external light source 4 is attached to the support column so that its position can be adjusted freely. A condensing lens 12 is installed above the collector main body 11, and a screw 13 is removably fixed to the input end side of the illumination fiber bundle 7 below, and the collector main body 11 is moved to the column 9. It is rotatably attached to the freely mounted bracket 14, for example, via a well-known ball joint. In addition, the output 4' of the illumination fiber bundle 7 made of optical fibers with high flexibility
ll7b can be detachably attached to the handpiece I through a click spring 15 attached to the fiber bundle, for example, at a position substantially coincident with the tip of the handpiece I. .

Now, the support 9 is fixed near the head of the fixed plate 8 on which the patient A is lying, and the bracket 14''n and the collector main body 11 are operated to direct the illumination light from the external light source to the collector 6.
If the illumination light beam is made to enter efficiently, the illumination light beam will be emitted from the output end 7b of the illumination fiber bundle and illuminate the cutting edge of the handpiece l, making it possible to obtain a bright illumination field of the affected area.

3 and 4 show other embodiments of the lighting device according to the present invention, and compared with FIGS. 1 and 2, the same components are indicated by the same reference numbers. In the embodiment, a reflector 16 is used as a light collecting function of the collector 6, and a machine table 18 placed on the upper body of the patient A is used.
The reflecting mirror is rotatably supported on the shaft, and the input end 7a of the illumination fiber bundle 7 is disposed at the focal point of the reflecting mirror, so that the illumination light emitted from the external light source lamp 4 is The light is condensed by the reflecting mirror, efficiently enters the input end of the fiber bundle, and exits from the output end 7b for bright illumination. In this case, 1 reflector 16
It is desirable to use a known concave mirror or elliptical reflector, and if necessary, a condenser lens system may be interposed between the reflector and the input end 7a of the fiber bundle, or a projection lens may be provided on the output end 7b side. A system may be provided to more effectively input the illumination light and emit the illumination light.

In the embodiments described above, the collector 6 is attached via a fixing device placed on the examination table, or is placed directly on the patient's upper body. The L collector may be attached to a part of the stand 5 via an arm rotatably provided.

In addition, the lighting fiber bundle 7 can have an appropriate length.
The injection end 7a is removably attached to the collector, and the injection end 7b is located at a position substantially coincident with the tip of the handpiece 1, such as the one described above. It can be attached to and detached from the handpiece via a click spring 15 attached to the fiber bundle. Therefore, as desired, the illumination fiber bundle according to the present invention can be attached to an existing handpiece, and the collector 6 can be operated to efficiently make illumination light from the outside enter the fiber bundle to directly illuminate the affected area. be able to.

〔Effect of the invention〕

As is clear from the above two explanations, the dental handpiece lighting device according to the present invention is able to directly illuminate the affected area by using the existing handpiece and light device, so the device itself is extremely inexpensive and , there are no blind spots in the illumination5, and the fiber bundle attached to the handpiece can be small and short, significantly reducing the burden on the operator's hands, improving dental diagnosis and treatment results, and improving the operator's In addition, by making the fiber bundle removable from the handpiece, it is easy to clean and disinfect the handpiece, which helps prevent infections between doctors and patients or between patients, which has become a problem in recent years. The benefits of using it are great, such as being useful.

[Brief explanation of the drawing]

Fig. 1 is an overall schematic diagram showing an embodiment of the present invention;
The figure is a perspective view showing the main parts of FIG. 1. FIG. 3 is a schematic diagram showing another embodiment, and FIG. 4 is a front view of the main part of FIG. 3. l...Handpiece, 4...Light source device. 6...Collector, 7...Lighting fiber bundle, 1
2...Condenser lens, 16...Reflector.

Claims (1)

[Claims] A lighting device for a dental handpiece, characterized in that a collector capable of collecting external light is provided on the incident end face side of an illumination fiber bundle that can be freely attached to the handpiece.