JP2592133Y2 - Medical light irradiation device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical light irradiation apparatus which can be suitably used for hardening medical materials such as fillings used for dental treatment.

[0002]

2. Description of the Related Art For example, Japanese Utility Model Application Laid-Open No. 2-131416 (Japanese Utility Model Publication No. 5-30428) discloses a light irradiation handpiece for irradiating a dental treatment material cured by photopolymerization with light. The handpiece includes a handpiece main body including a light source, and a rechargeable battery detachably mounted on the main body.

As a prior art, a charging device having two recesses into which a plurality of the above-described rechargeable batteries can be inserted so as to stand upright is known. According to this prior art, dust or the like easily enters the recess, and the dust or the like adheres to the charging electrode in the recess, so that a contact failure or the like easily occurs. The dust that has entered the recess is difficult to wipe out, cannot be disinfected, and cannot keep the recess sanitary.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make it possible to easily wipe dust and the like that have entered a recess into which a rechargeable battery is inserted, and to prevent poor contact of a charging electrode in the recess. An object of the present invention is to provide a medical light irradiation device capable of preventing the occurrence of light.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a light irradiation handpiece for irradiating light to a medical material which is cured by photopolymerization, and a rechargeable battery provided in the light irradiation handpiece. The light irradiation handpiece, the main body and the rechargeable battery are detachable,
The rechargeable battery is provided with a charging electrode on the rechargeable battery side that conducts to the charging device, and the charging device is electrically connected to the charging electrode on the rechargeable battery side in a state where the rechargeable battery is inserted. A recess provided with a charging electrode for charging the rechargeable battery is formed, and the recess of the charging device extends from the top surface of the charging device to the bottom surface of the recess having the charging electrode in order to clean the inside of the recess. A medical light irradiation device, characterized in that an opening that opens laterally is provided.

According to another aspect of the present invention, the rechargeable battery can be inserted into and detached from a casing of a holder portion connected to the main body of the light irradiation handpiece in an axial direction of the casing from a bottom opening of the casing. This rechargeable battery contains
When the rechargeable battery is mounted on the casing of the light irradiation handpiece, the rechargeable battery-side load electrode that conducts to the handpiece-side load electrode provided on the inner upper surface of the casing is located on the upper surface of the rechargeable battery. And a charging electrode on the rechargeable battery side is provided on a lower surface of the rechargeable battery.

[0007] Further, according to the present invention, the recess of the charging device includes:
The rechargeable battery alone or the rechargeable battery of the light irradiation handpiece to which the rechargeable battery is mounted or the holder of the light irradiation handpiece is formed to stand substantially vertically so as to be insertable. I do.

[0008]

According to the present invention, a light irradiation handpiece for irradiating a medical material cured by photopolymerization with light is:
The main body and the rechargeable battery are detachably configured, and the rechargeable battery is provided with a charging electrode on the rechargeable battery side. The charging device for charging the rechargeable battery has a recess into which the rechargeable battery is inserted, and the recess is connected to a charger that conducts to the charging electrode on the rechargeable battery side and charges the rechargeable battery. A charging electrode is provided. With such a configuration, the rechargeable battery can be charged.

Since a cleaning opening is provided in the recess of the charging device, dust or the like that has entered the recess can be easily discharged to the outside through the opening, and the charging device in the recess can be discharged. It is possible to minimize the occurrence of poor contact due to dust or the like adhering to the electrodes.

According to the present invention, the rechargeable battery is further provided with a load electrode in addition to the charging electrode on the rechargeable battery side. The main body of the light irradiation handpiece is provided with a load electrode on the handpiece side on the upper surface inside the casing of the holder portion. Therefore, when the rechargeable battery is mounted on the holder casing of the main body of the light irradiation handpiece, the load electrode of the rechargeable battery conducts to the load electrode of the handpiece, and it becomes possible to guide power to the main body. In this way, the power of the rechargeable battery can be supplied to the main body at the same time that the rechargeable battery is mounted on the main body of the handpiece.
The convenience is improved because the labor for connecting the electrodes is omitted.

According to the present invention, the recess of the charging device is:
Since the mounted rechargeable battery or holder is formed so as to stand substantially vertically, the rechargeable battery is inserted into the recess of the charging device or inserted downward along the axial direction when removing or removing the rechargeable battery. The rechargeable battery can be easily and smoothly attached to and detached from the charging device by pulling it upward along the axial direction.

[0012]

1 is an overall perspective view showing a medical light irradiation device 1 according to an embodiment of the present invention, FIG. 2 is a plan view of a charging device 3 shown in FIG. 1, and FIG. FIG. 4 is a side view of the light irradiation handpiece 4 and the rechargeable battery 8 shown in FIG. 1. The medical light irradiation device 1 of the present embodiment basically includes a plurality (two in this embodiment) of recesses 5.
a light emitting handpiece 4 in which a charging device 3 having a and 5b, a main body 6 and a rechargeable battery 7 are detachably provided, and the rechargeable battery 7 is inserted into the one recess 5b; A spare rechargeable battery 8 for replacement when the power of the mounted rechargeable battery 7 is consumed.

In each of the recesses 5a and 5b of the charging device 3,
Charging electrodes 9a and 9b are provided to be exposed facing upward, respectively, and at one longitudinal end of each of the rechargeable batteries 7 and 8, a charging electrode 10 on the rechargeable battery side corresponding to the electrodes 9a and 9b is provided.
a and 10b are provided respectively. These electrodes 9a,
9b; 10a, 10b come into contact with the respective rechargeable batteries 7, 8 inserted into the respective recesses 5a, 5b and become electrically conductive.

In order to clean the recesses 5a and 5b, the charging device 3 is opened on the side from the upper surface 3a of the charging device 3 to the recess bottom surfaces 52a and 52b where the charging electrodes 9a and 9b are provided. Openings 51a and 51b are provided. With these openings 51a and 51b, dust and dirt that have entered the recesses 5a and 5b can be easily swept out, and the recesses can be disinfected with alcohol or the like, whereby the respective electrodes 9a and 9b can be disinfected. It prevents dust and dirt from adhering to the surface, preventing the occurrence of poor contact and preventing infection. Each of the recesses 5a, 5b is provided with a respective one of the rechargeable batteries 7, 8
Alternatively, it is formed so as to stand in a substantially vertical direction (perpendicular to the plane of FIG. 2) so that a holder portion 61 connected to the main body 6 of the light irradiation handpiece 4 can be inserted. Thereby, each of the rechargeable batteries 7, 8 or the holder portion 61 can be detached by being pulled upward along the axis thereof, or can be easily mounted by being inserted downward along the axial direction. Can be easily performed. That is, each of the recesses 5a and 5b can be supported by inserting the holder 61 with the rechargeable battery 7 detached from the main body 6 of the light irradiation handpiece 4.

The charging electrode 10 of each of the rechargeable batteries 7 and 8
Load electrodes 53a and 53b are respectively provided at ends opposite to the side where a and 10b are provided. Each of the load electrodes 53a and 53b is electrically connected to a load electrode 55 provided on the upper surface 54 in the casing of the holder 61, and
Can be powered. The load electrode 55 provided on the main body 6 of the light irradiation handpiece 4 in this manner.
The load electrodes 53a and 53b of the rechargeable batteries 7 and 8 can be simultaneously connected to the load electrode 55 by inserting the rechargeable battery 7 or 8 into the holder 61. It is possible to automatically connect the electrodes 53a or 53b and the load electrode 55 without any operation, so that the convenience is improved.

The main body 6 of the light irradiation handpiece 4 includes:
Light source unit 13 incorporating halogen lamp 11 as a light source
And a filter 14 for converting light emitted by the halogen lamp 11 of the light source unit 13 into visible light having a wavelength of 400 to 500 nm, and an irradiating unit 14 including an optical fiber for guiding the visible light. The light source unit 13 also has an operation switch 15 for automatically turning on the halogen lamp 11 for about 40 seconds. When the operation switch 15 is pressed and the halogen lamp 11 is turned on, a plurality of switches are provided. A cooling fan (not shown) for discharging the heat generated by the halogen lamp 11 to the outside through the slit 16 is provided. The light source unit 13
When the temperature reaches, for example, 60 ° C., the operation switch 15
A thermistor (not shown) is built in so as not to be turned on even if is operated. Each of the rechargeable batteries 7 and 8 also has a similar thermistor.

On the upper surface 3a of the charging device 3, a light receiving section 16 for detecting the intensity of light emitted from the tip of the irradiation section 14 of the light irradiation handpiece 4, and a light receiving section 1
A light intensity display unit 17 for displaying the intensity of the light received by the light source 6 in a stepwise manner according to a lighting amount, and charge state display units 18a and 18b for displaying the charge states of the rechargeable batteries 7 and 8 are provided. .

FIG. 5 is a block diagram showing a schematic electric configuration of the charging device 3. The charging device 3 takes in AC power of, for example, 100 V from a commercial AC power supply 19, rectifies and smoothes the power, and then takes in a power supply circuit 20 that outputs a predetermined secondary voltage and an output from the power supply circuit 20, and receives each electrode. 9
The charging circuits 21a and 21b, which are a plurality of (two in the embodiment) chargers that simultaneously supply power to the charging circuits a and 9b, and the charging circuits 21a and 21b for displaying the charging state in response to the respective outputs from the charging circuits 21a and 21b. 23 indicators 23a, 24a, 25a;
b, 24b, and 25b. These indicators 23
a to 25a; 23b to 25b are realized by, for example, light emitting diodes (abbreviated LEDs).

When the indicators 23a and 23b are turned on, it indicates that the charging is completed.
When the indicator 4b is lit, it indicates that charging is in progress. When the indicators 25a, 25b are lit, heat is generated due to overcharge, overdischarge, battery life, and the like as described above. Show. Such a charging device 3 is a so-called -ΔV voltage detection type charger that detects the -ΔV voltage and stops charging.

With the above structure, the light irradiation handpiece 4 is used to irradiate a treatment material, for example, a light-cured resin filled in the teeth in the oral cavity which is cured by light-curing for about 40 seconds each time. After performing four times, the spare rechargeable battery 8 and the rechargeable battery 7 mounted on the main body 6 are exchanged, and irradiation can be performed four more times. Since light irradiation can be performed continuously in this way,
Light irradiation can be performed a desired number of times without interrupting the treatment.

As another embodiment of the present invention, the number of the recesses 5a and 5b provided in the charging device 3 is not limited to two as described above, but depends on the number of uses or the use time of the light irradiation handpiece 4. May be provided.

The present invention can be suitably implemented not only for curing a dental treatment material by photopolymerization but also for other uses, for example, as an ultraviolet or infrared irradiation device.

[0023]

As described above, according to the present invention, a light irradiation handpiece for irradiating light to a medical material which is cured by photopolymerization has a main body and a rechargeable battery which are detachably provided. The rechargeable battery is provided with a charging electrode on the rechargeable battery side. A recess for inserting the rechargeable battery is formed in the charging device for charging the rechargeable battery, and the recess is connected to a rechargeable battery that conducts to the charging electrode on the rechargeable battery side and charges the rechargeable battery. A charging electrode is provided. With such a configuration,
Rechargeable battery can be charged.

Since a cleaning opening is provided in the recess of the charging device, it can be easily discharged to the outside through dust or the like that has entered the recess, and the charging electrode in the recess has dust or the like. Adhesion and poor contact can be minimized, and the recess can be sanitized because alcohol can be used for wiping and disinfection.

According to the present invention, the rechargeable battery is further provided with a load electrode in addition to the charging electrode on the rechargeable battery side. The main body of the light irradiation handpiece is provided with a load electrode on the handpiece side on the upper surface inside the casing of the holder portion. Therefore, when the rechargeable battery is mounted on the holder casing of the main body of the light irradiation handpiece, the load electrode of the rechargeable battery conducts to the load electrode of the handpiece, and it becomes possible to guide power to the main body. In this way, the power of the rechargeable battery can be supplied to the main body at the same time that the rechargeable battery is mounted on the main body of the handpiece.
The labor for connecting the electrodes can be omitted, and the convenience is improved.

According to the present invention, the recess of the charging device is:
Since the mounted rechargeable battery and the holder part are formed so as to stand substantially vertically, the rechargeable battery is inserted into the recess of the charging device or pulled out along the axial direction when the rechargeable battery is pulled out or pulled out along the axis. The rechargeable battery can be easily and smoothly attached to and detached from the charging device simply by inserting the rechargeable battery downward in the direction.

[Brief description of the drawings]

FIG. 1 is a perspective view of a medical light irradiation device 1 according to an embodiment of the present invention.

FIG. 2 is a plan view of the charging device 3 shown in FIG.

FIG. 3 is a front view of the charging device 3;

FIG. 4 is a side view of the light irradiation handpiece 4 and the rechargeable battery 8;

FIG. 5 is a block diagram showing a schematic electrical configuration of the charging device 3.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 medical light irradiation device 3 charging device 4 light irradiation handpiece 5a, 5b recess 6 main body 7 rechargeable battery 8 spare rechargeable battery 9a, 9b charging electrode on charging device side 10a, 10b charging electrode on charging battery side DESCRIPTION OF SYMBOLS 11 Halogen lamp 13 Light source part 14 Irradiation part 51a, 51b Opening 53a, 53b Load electrode on the rechargeable battery side 54 Top surface 55 Load electrode on the handpiece side 61 Holder part

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A 2-131416 (JP, U) JP-A 2-75948 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) A61C 13/15 A61C 5/00

Claims (3)

(57) [Scope of request for utility model registration] 1. A light irradiation handpiece for irradiating light to a medical material cured by photopolymerization, and a charging device for charging a rechargeable battery provided in the light irradiation handpiece, The light irradiation handpiece has a main body and a rechargeable battery that are detachable, the rechargeable battery is provided with a charging electrode on the rechargeable battery side that is electrically connected to the charging device, and the rechargeable battery is inserted into the charging device. In this state, a recess is formed in which the charging electrode on the side of the rechargeable battery is electrically connected to the charging electrode for charging the rechargeable battery, and the inside of the recess is cleaned in the recess of the charging device. To this end, an opening is provided which opens laterally from the top surface of the charging device to the bottom surface of the recess where the charging electrode is located. 2. The rechargeable battery can be inserted into and detached from a casing of a holder portion connected to a main body of the light irradiation handpiece from a bottom opening of the casing in an axial direction of the casing. In this rechargeable battery, when the rechargeable battery is mounted on the casing of the handpiece for light irradiation, a load electrode on the rechargeable battery side that conducts to a load electrode on the handpiece side provided on the inner upper surface of the casing. 2. The medical light irradiation device according to claim 1, wherein the rechargeable battery is provided on an upper surface thereof, and the charging electrode on the rechargeable battery side is provided on a lower surface of the rechargeable battery. 3. 3. The recess of the charging device is arranged in a substantially vertical direction so that the rechargeable battery alone or the rechargeable battery of the light irradiation handpiece to which the rechargeable battery is mounted or the holder of the light irradiation handpiece can be inserted. The medical light irradiation device according to claim 1, wherein the medical light irradiation device is formed to stand upright.