JPS6036252Y2 - Dental handpiece with light - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dental handpiece with an illumination light used in dental treatment.

Generally, when performing dental treatment, the inside of the oral cavity is illuminated using a surgical light installed at or near the dental unit, but as is well known, the inside of the oral cavity is small, and the hands of the doctor performing the treatment are difficult to illuminate. Due to the location of the handpiece and the like, the light from the surgical light is inevitably blocked, which makes it difficult to see the affected area to be treated, which is an unavoidable functional problem.

Recently, as a means to solve these problems, the tip of a light guiding member made of a bundle of glass fibers or the like is made to face the end face of the handpiece head (head tip) on the drill side. An illuminated handpiece has been developed that illuminates an affected area by projecting light from the tip of a light guiding member.

However, in an illuminated handpiece that uses a light guide member made of a glass fiber bundle or the like and emits light from the tip of the light guide member, it is difficult to guide the light from the light source lamp. The problem is that extremely advanced technology is required to efficiently focus the light on the condensing part of the light component, and the structure is also complicated, so it is time-consuming to replace parts when, for example, the light source lamp breaks. In addition to the required cost, the handpiece itself was also expensive.

This invention was made taking into account the above points,
By embedding the light source lamp in a cassette type directly into the end face of the handpiece head on the drill side, this lighting lamp simplifies work when replacing parts, simplifies the structure, and can be manufactured at low cost. The purpose of the present invention is to provide a dental handpiece with an attached dental handpiece.

An embodiment of the present invention will be described below with reference to the drawings.

Figures 1 to 3 show a front view and a sectional view of the main part (near the head) of the band piece for tooth materials with an illumination light according to the present invention. This is a head chip attached to the tip of a cylindrical band piece body (not shown).

Inside this head tip 1, a well-known air turbine 3 having a cylindrical rotating shaft 2 in which a cutting tool such as a diamond point (hereinafter referred to as a drill) can be mounted is installed in the center by a pair of bearings 4, 4. It is rotatably supported.

Further, a donut-shaped fitting groove 5 is formed on the end surface of the head tip 1 on the side where the drill is attached, and an illumination panel 6 is removably fitted into this fitting groove 5. .

At a position below the fitting groove 5 of the head chip 1,
A pair of sockets 7 for supplying electricity are each housed inside, and one end of each lead wire 8 is connected to each of these sockets 7 (only one of each of the sockets 7 and lead wires 8 is shown).

Although not particularly shown, the other end of this lead wire 8 is connected to an AC power source through the band piece body and the flexible tube, or to the battery if the band piece body has a built-in battery. Ru.

On the other hand, as shown in FIGS. 4 and 5, the illumination panel 6 has leg portions 9, 9, and is made of transparent hard synthetic resin in whole or in part to fit the groove depth of the fitting groove 5. It has a corresponding thickness.

As shown in the figure, two miniature light bulbs 10, 10 are embedded in the donut-shaped main body 6a at mutually corresponding positions in the diametrical direction.

Further, one end of a plug 11.11 whose other end is connected to both the sockets 7, respectively, is embedded in the leg portions 9, 9, and each of these plugs 11.11 and the miniaturized light bulb 10, 10 are electrically connected by lead wires 12 and 12 embedded between them.

In addition, when the main body 6a of the lighting panel 6 is only partially formed of transparent hard synthetic resin, the front parts of the miniature light bulbs 10, 10, that is, the parts respectively surrounded by chain lines P and P in FIG. 1, are made transparent. It should be formed as follows.

Note that 13 is a supply path for compressed air to the air turbine 3.

As described above, the dental band piece with an illumination light according to the present invention has a fitting groove 5 formed on the end face of the head tip on the side where the drill is attached, and a miniature light bulb for intraoral illumination is formed in this fitting groove. Since the lighting panel 6 with built-in light bulbs 6 has a cassette type structure, that is, it has a structure in which it can be inserted in a detachable manner, it can be used, for example, as a miniature light bulb 10.
10 is disconnected, the lighting panel 6 is connected to the head.
It is only necessary to remove it from the chip 1 and replace it with a spare illumination panel 6, thus making the replacement work of the main parts extremely convenient.

During this replacement work, the legs 9, 9 of the lighting panel 6
You can do this by pinching it with your fingers.

Also, as a means for energizing the miniature light bulb 10.10,
It is only necessary to incorporate the socket 7 and the lead wires 8 into the head chip 1, thus simplifying the structure accordingly.

On the other hand, since the illumination panel 6 can be easily formed by ordinary resin molding, it is naturally inexpensive in itself.

In addition, since the dental band piece with an illumination light of the present invention has almost the same external shape as the conventional one, the operability for the doctor does not deteriorate, and moreover, the illumination panel 6 includes a miniature light bulb 10. 10 is directly implanted, it has various excellent effects such as ensuring sufficient brightness necessary for treatment.

Furthermore, according to the present invention, the illumination panel 6 includes the panel 6.
Since the legs 9 are provided to act as a pinch when attaching and detaching the panel, the panel 6 can be easily replaced by normal manual labor without using any jigs, which is an unprecedented feature. In addition, in addition to functioning as a knob, the leg 9 is also used as a place to embed one end of the plug 11, so the panel 6 can be attached and removed using the leg 9 as a knob. At times, the operating force from the fingertips acts directly as a force for inserting the plug 11 into the socket 7, or conversely, as a force for pulling it out, which further improves the operability of attaching and detaching the panel 6. It has an effect.

These effects are extremely effective for people who do complicated work on a daily basis, such as doctors and nurses.

[Brief explanation of the drawing]

Figure 1 is a front view of essential parts showing an embodiment of the present invention, Figure 2 is a sectional view taken along line A-A' in Figure 1, and Figure 3 is a cross-sectional view taken along line A-A' in Figure 1. 4 is a sectional view of the illumination panel, and FIG. 5 is a sectional view taken along line BB' in FIG. 4. 1... Head chip, 5... Fitting groove, 6... Lighting panel, 6a... Body, 7... Socket, ...Lead wire, 9゜9 ... Leg, 10゜10 ... Miniature light bulb, 11゜1 ... Plug, 12゜12 ... ··· Lead.

Claims (1)

[Scope of utility model registration request] A dental handpiece including a head tip with a built-in air turbine having a rotating shaft on which a cutting tool is attached, wherein an end surface of the head tip on a side on which the cutting tool is attached has a donut-shaped fitting. A groove is formed, a lighting panel in which miniature light bulbs for illuminating the affected area are embedded is removably fitted into the fitting groove, and the lighting panel has legs shaped to protrude from the fitting groove, and One end of the miniature light bulb was electrically connected to a plug embedded in the leg, and the other end of the plug was embedded in the head chip at a position opposite to the plug and was connected to a power source. A dental handpiece with an illumination light, which is fitted into a socket.