JP2012245059A - Dental handpiece with lighting and control method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide means for keeping optimum brightness required for a medical examination according to a light quantity inside an examination room during a dental examination, a surrounding environment such as a shadowless lamp, and a position of a lesion inside an oral cavity to be treated such as a molar or a front tooth.SOLUTION: A dental handpiece 1 with lighting includes a lighting means 5 for lighting a subject, and an illuminance detection means 4 for detecting reflection illuminance from the subject near an end part of a handheld member, and further includes a monitoring means for monitoring a current and a voltage supplied to the lighting means 5, a storage means 14 for storing a prescribed value, a comparison means for comparing an illuminance detection value and/or the monitored values of the current and the voltage with the prescribed value, a control means for controlling current and voltage values according to a value obtained from the comparison means, and a setting means 12 for arbitrarily setting the prescribed value stored in the storage means 14. The dental handpiece 1 with lighting further includes an alarm means 8 for comparing the monitored value obtained from the monitoring means with the prescribed value preserved in the storage means 14, detecting abnormal condition and generating an alarm.

Description

The present invention relates to a dental handpiece that includes an illumination mechanism for dimming optimal intraoral illumination intensity necessary for medical treatment, and further enables automatic dimming.

2. Description of the Related Art Conventionally, when performing dental care, the oral cavity is dark and narrow, and therefore there are sites where the optimal illumination intensity required for medical treatment cannot be obtained only with the operation of a surgical light. Therefore, there is a dental handpiece provided with an illumination mechanism that illuminates the oral cavity.

Patent Document 1 relates to an automatic dimming device for a dental lighting apparatus, and in particular, the brightness of a dental lighting apparatus used for illuminating the oral cavity of a patient in dental treatment depends on the brightness in the treatment room, that is, The difference between the brightness in the treatment room and the brightness in the oral cavity is automatically adjusted so as to be substantially constant, thereby reducing the eyestrain of the surgeon. Patent Document 1 has been made by paying attention to the circumstances as described above. In particular, the difference between the brightness in the treatment room and the brightness in the oral cavity by the lighting device is always kept substantially constant, in other words, in the treatment room. If the brightness of the patient becomes darker, the mouth becomes darker accordingly. Conversely, if the brightness in the treatment room becomes brighter, the brightness of the mouth becomes brighter accordingly, thereby reducing the eyestrain of the surgeon. It is what I did.

Patent Document 2 relates to an apparatus for automatically controlling the brightness of a lamp used together with light of a manual instrument, thereby protecting the useful life of the lamp. The brightness control functions in conjunction with a switch mechanism attached to the holder of the manual instrument. When the manual instrument is removed from the holder, the lamp illuminates with reduced intensity. The lamp is turned off when the manual instrument is returned to the holder.

Japanese Utility Model Publication No. 62-37358 Japanese National Patent Publication No. 7-505818

The automatic light control device disclosed in Patent Document 1 detects the brightness in the treatment room by photoelectric conversion elements (cds), and in order to always keep the brightness in the treatment room and the oral cavity substantially constant, The voltage is controlled by changing the resistance, and no sensor is installed at the tip of the dental handpiece. It is impossible to control the illumination intensity necessary for medical treatment.

The dental manual instrument disclosed in Patent Document 2 is configured to apply a voltage by driving a manual instrument by operating a switch mechanism and an operator's foot pedal operation by removing from a holder, and detecting the brightness of an affected part in the oral cavity The light cannot be automatically adjusted.

Therefore, the present invention solves the above-described problems, and the optimum brightness necessary for medical care is determined according to the surrounding environment such as the light quantity and surgical light in the medical room and the position of the affected part of the oral cavity such as the molar or anterior tooth. We propose a means to preserve

In order to solve the above-mentioned problem, the illuminated dental handpiece according to claim 1, an illuminating means for illuminating a subject in the vicinity of the distal end portion of the holding member, and an illuminance detecting means for detecting reflected illuminance from the subject. Monitoring means for monitoring the current and voltage supplied to the illumination means, storage means for storing a predetermined value, and comparison means for comparing the predetermined value with the illuminance detection value and / or the current and voltage monitoring value And control means for controlling the current and voltage values from the values obtained from the comparison means.

The illuminated dental handpiece according to claim 2 has setting means for arbitrarily setting a predetermined value stored in the storage means.

The illuminated dental handpiece according to claim 3, wherein a warning value is generated by detecting an abnormality by comparing a monitoring value obtained from the monitoring means with a predetermined value stored in the storage means. It is characterized by having.

5. The illuminated dental handpiece according to claim 4, wherein the warning means outputs a sound output means for notifying by an alarm sound or a voice, a warning light lighting / flashing means for turning on or blinking a warning light, and a character or figure displayed on the screen. It is the display means to do.

The illuminated dental handpiece according to claim 5, wherein the illuminance detecting unit automatically detects the illuminance when the ambient illuminance is detected and the detected value is lower than a predetermined knowledge stored in the storage unit. It is made to light.

The illuminated dental handpiece according to claim 6 is optimal by comparing the illuminance detection value obtained from the illuminance detection means with a predetermined value stored in the storage means, and controlling the current and voltage values. It is characterized by automatically dimming the illuminance.

The illuminated dental handpiece according to claim 7 is a micromotor, an air turbine, an ultrasonic scaler, an air scaler, an intraoral camera, a tooth surface cleaning device, or a laser handpiece. The illuminated dental handpiece according to any one of Items 7 to 7.

The method for controlling a dental handpiece with illumination according to claim 8 is provided with illumination means for illuminating a subject and illuminance detection means for detecting reflected illuminance from the subject in the vicinity of the tip of the hand-held member, and the illumination means. A monitoring step for monitoring the current and voltage supplied to the storage device, a storage step for storing a predetermined value, a comparison step for comparing the predetermined value with an illuminance detection value and / or a monitoring value, and a value obtained from the comparison step And a control step for controlling current and voltage values.

As described above, according to the present invention, it is possible to omit the work process of adjusting the voltage for appropriately adjusting the brightness of the intraoral illumination, which is a laborious operation, and also depends on the illumination in the medical room and the weather. It is possible to provide means for maintaining brightness that is not affected by the brightness of the medical room, the surgical light, the position of the teeth in the oral cavity such as the front teeth and molars. Furthermore, it is possible to read the abnormality of the bulb for intraoral illumination from the relationship between illuminance and voltage. As a result, there is no fear that the bulb will suddenly break, and it will be possible to detect the bulb replacement period early and inform the user.

FIG. 1 is a block diagram of a control circuit using a CPU of an automatic dimming control method and apparatus for a dental handpiece. FIG. 2 is a block diagram of a control circuit that does not use the CPU of the automatic dimming control method and apparatus for a dental handpiece. FIG. 3 is a diagram of a dental examination table in which the optical sensor of the automatic light control method and apparatus for a dental handpiece is installed on a dental micromotor handpiece. FIG. 4 is a diagram in which the optical sensor of the automatic light control method and apparatus for a dental handpiece is installed in a dental air turbine handpiece. FIG. 5 is a diagram in which the optical sensor of the automatic light control method and apparatus for a dental handpiece is installed in a dental micromotor handpiece. FIG. 6 is a view in which the optical sensor of the automatic light control method and apparatus for a dental handpiece is installed in a dental ultrasonic scaler. FIG. 7 is a diagram in which the light sensor and the LED lamp of the automatic light control method and apparatus for a dental handpiece are installed in a dental air turbine handpiece. FIG. 8 is a flowchart of an automatic dimming control method and apparatus for a dental handpiece. FIG. 9 is a display example of a warning of the automatic light control method and apparatus for a dental handpiece. FIG. 10 is a flowchart of an automatic dimming control method and apparatus for a dental handpiece with automatic lighting control.

Hereinafter, the best embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram implemented using the CPU 10 of the automatic dimming control method and apparatus of the dental treatment apparatus of the present invention.
The dental handpiece 1 is connected to the CPU (central
a light source 5 as an illuminating means and an illuminance sensor 4 as an illuminance detecting means are provided near the tip of the dental handpiece.
The light source 5 illuminates the tooth 2, and the illuminance sensor 4 detects reflected light 3 from the tooth 2. The detected illuminance information of the reflected light 3 is sent to the CPU 10 via the input / output control unit 9 and compared to determine whether the illuminance is within a predetermined value stored in the storage unit 14 (comparison step). The storage unit 14 stores a data table in which predetermined values of voltage and current corresponding to each illuminance are recorded, and is referred to (storage process).
When it is determined that the illuminance of the detected reflected light is greater than or equal to a predetermined value, the voltage value or current value supplied to the illumination means is checked (monitoring step), and the voltage value or current value is If it is outside the predetermined value, a command is issued from the CPU 10 to control the voltage value or current value (control process). This command is reflected on the light source 5 through the input / output control unit 9 based on the calculation result of the CPU 10. In addition, it is also determined whether or not there is an abnormality with respect to the voltage value or current value detected at this time (comparison step). If there is an abnormality, a command is issued from the CPU 10 and the display unit is passed through the input / output control unit 9. The operator is warned by a warning means 8 having 6 and a speaker 7. Further, the setting means 12 can change the predetermined value of the initial setting to an arbitrary predetermined value, and input can be performed with a keyboard or a mouse.

FIG. 2 is a block diagram implemented by a control circuit that does not use a CPU of the automatic dimming control method and apparatus of the dental treatment apparatus of the present invention.
The dental handpiece 1 is connected to a control circuit 50, and a light source 5 as illumination means and an illuminance sensor 4 as illuminance detection means are provided in the vicinity of the distal end portion of the dental handpiece.
The light source 5 illuminates the tooth 2, and the illuminance sensor 4 detects reflected light 3 from the tooth 2. The detected illuminance value of the reflected light 3 is compared with a predetermined value of the illuminance value stored in the storage unit 14 by the comparison unit 51. The storage unit 14 records predetermined values of voltage value and current value corresponding to each illuminance.
When it is determined that the illuminance of the detected reflected light is greater than or equal to a predetermined value or less than a predetermined value, the voltage value or current value supplied to the illumination means is detected by the monitoring means 53, and the comparison means 51 stores the storage means. 14 is compared with the voltage value or current value recorded in 14.
When the voltage value or current value is outside the predetermined value, the voltage value or current value is controlled by the control means 54. The illuminance is adjusted based on this control and reflected on the light source 5. Also, the comparison means 51 determines whether or not there is any abnormality with respect to the voltage value or current value detected by the monitoring means 53. If there is an abnormality, the warning means 8 warns the surgeon. Further, the setting means 12 can change the predetermined initial value stored in the storage means 14 to an arbitrary predetermined value.

FIG. 3 is a view showing the dental examination table 22. The dental examination table 22 includes a base 31, a patient chair 32 provided on the base 31, a doctor table 33 provided on the right side of the patient chair 32, and a left side of the patient chair 32. A unit main body portion 35 including an auto-calun 36, a spit-on bowl 37, a cup water supply nozzle 38, and the like, and an assistant hanger 39 are provided. The doctor table 33 used by the surgeon includes a digital display panel 40 and an instrument hanger 34. The assistant hanger 39 is provided with a vacuum and a syringe used by the assistant.

The instrument hanger 34 of the doctor table 33 is provided with a dental air turbine 19, a dental micromotor 20, and a dental ultrasonic scaler 21. The dental air turbine 19, the dental micromotor 20, and the dental ultrasonic scaler 21 are provided with the illuminance sensor 6 of the present invention as shown in FIGS. 4, 5, and 6.
The instrument hanger 34 is not limited to these dental handpieces, and may be an air scaler, an intraoral camera, a tooth surface cleaner, or a laser handpiece, and may be arbitrarily provided depending on the dental treatment method. Is possible.

As shown in FIG. 1, when an LED lamp is used for the display unit 6 of the warning means 8, one or each instrument is provided on the digital display panel 40 portion of the doctor table 33 of the dental examination table 22 as shown in FIG. A plurality of LED lamps are provided, and a warning can be displayed by turning on or blinking the LED lamps indicating the contents of the occurrence of an abnormality. Further, as shown in FIG. 3, a plurality of light sources for each instrument are in the vicinity of the digital display panel 40 of the doctor table 33 of the dental examination table 22 for each operating state (normal, light source replacement time close, light source replacement required). The LED lamp can be provided, and a warning can be displayed by turning on or blinking the LED lamp indicating the operation state. When a digital display panel 40, a liquid crystal display (not shown), or the like is used, an abnormal portion of the instrument is displayed together with a display “ERROR”, or a warning is displayed by simply displaying or blinking the letters “ERROR”. You can do it. Furthermore, it is also possible to warn the surgeon by blinking an unshown operating light provided on the upper part of the dental examination table 22 several times. In the case of the blinking warning of the operating light, it is not necessary to newly provide a special configuration for displaying an abnormality.
Although the warning display in the vicinity of the doctor table has been described as a warning means, without being limited thereto, the LED lamp 11 as a warning lamp is provided on the hand-held member of the instrument as shown in FIG. By turning on and / or blinking the LED lamp, the surgeon can confirm a warning display without taking a visual field from the treatment site during treatment. Further, a plurality of the three LED lamps provided on the dental handpiece 19 of FIG. 7 can be lit and / or blinked according to the abnormal height. When the sensor is contaminated, one LED lamp is lit and / or blinking. When the light source is deteriorated, two LED lamps are lit and / or blinking, and the light source is When the LED lamp has been cut off, three LED lamps are lit and / or blinked to display an abnormal level. Thereby, the surgeon can confirm the abnormal level at a glance.

As another embodiment as a warning means, a speaker 7 is provided as shown in FIG. 1. For example, a sound “abnormality has occurred” or the operating state of the light source of each instrument (normal, light source It is a warning for the surgeon by outputting voice guidance and warning sound indicating the location of the abnormality.

Further, the warning means 8 is connected to the in-hospital network or the like of the clinic where the dental clinic 22 is installed, and the operation state of the instrument light source for each dental clinic 22 is connected to the LED display lamp at the reception in the clinic or the like. (Normal, light source replacement time close, light source replacement required) is displayed in real time, or the operating state of the light source of the instrument of each dental clinic table 22 on the reception desk or host computer screen (normal It is also possible to display in real time the light source replacement time is near and the light source needs to be replaced.

Hereinafter, the details of the flow of the automatic light control for the dental air turbine 19 will be described using the flowchart of FIG.
The intraoral illumination switch 55 on the digital display panel 40 of the dental examination table 22 in FIG. 3 is turned on, and the dental air turbine 19 provided on the instrument hanger 34 of the doctor table 33 is further removed, so that the intraoral illumination switch 55 is removed. The lighting output is turned on (S11).
Next, the illuminance sensor 4 measures the illuminance of the reflected light 3 from the tooth 2 as shown in the block diagram of FIG. It is determined whether the measured illuminance is 72,000 lux or more (S12). If the detected illuminance is not 72,000 lux or more, it is determined whether the current is I = 0 (S15).
When the current is I = 0, since no current flows through the light source 5, it is predicted that the ball will be cut or disconnected, so that a light source replacement or disconnection alert is issued (S21). At this time, as shown in S27 of FIG. 9, the display of the light source error 2 “The light source needs to be replaced. Please contact the sales office” is displayed on the digital display panel 40 of FIG. 3 or a liquid crystal display (not shown). . Next, when the intraoral lighting output is ON in S17, the process returns to step S12 and the same routine is repeated. If the intraoral lighting output is OFF, the light source 5 is turned off (S22) and the process is terminated.
If the current is not I = 0, it is determined whether or not the voltage value is 3.5 V or more (S13).
When the voltage is 3.5 V or higher, the illuminance is not output even though the voltage is appropriate, and the light source is expected to be deteriorated. Therefore, the light source deterioration alert is issued (S19). At this time, as shown in S26 of FIG. 9, the display of the light source error 1 “The light source has deteriorated. Replace the light source” is displayed on the digital display panel 40 of FIG. 3 or a liquid crystal display (not shown). Thereafter, when the intraoral lighting output is OFF, the light source 5 is turned off (S22) and the flowchart is ended. If the intraoral lighting output is ON, the process returns to step S12.
If the detected illuminance is not 3.5V or higher, the voltage is increased by 0.05V. (S18)
After that, when the intraoral lighting output is OFF in S17, the light source 5 is turned off (S22) and the flowchart ends.
When the intraoral lighting output is ON, the process returns to step S12, and the routine is repeated by increasing 0.05V until the illuminance exceeds 72000 lux or the voltage becomes 3.5V.
If the detected illuminance is 72000 lux or more, it is next determined whether it is 88000 lux or less (S14). If the detected illuminance is not less than 88000 lux, the voltage is lowered by 0.05 V (S20).
Thereafter, when the intraoral lighting output is OFF in S17, the light source 5 is turned off (S22) and the flowchart is ended. When the intraoral illumination output is ON, the process returns to S12, and the routine is repeated with 0.05V lowered until the illuminance becomes 88000 lux or less.
When the illuminance is 88000 lux or less, the illuminance of the light source is in an appropriate range. Thereafter, the process proceeds to S17, and when the intraoral lighting output is OFF, the light source 5 is turned off (S22) and the process ends.
If the intraoral lighting output is ON, the process returns to step S12, and the same routine is repeated until the intraoral lighting output is turned OFF.

FIG. 9 shows an example in which the alert displayed on the display unit 6 is displayed on a liquid crystal display (not shown). If the light source has deteriorated and needs to be replaced soon, an alert such as “The light source has deteriorated. Replace the light source” (S26) can be displayed using kana characters or pictures. When this alert is displayed on the small digital display panel 40 in the doctor table 33 of the dental examination table in FIG. 3, for example, “ERROR-1” or the like is displayed in alphabets or numbers.

If the light source in the oral cavity, which is the light source, is burned out, or if the light source has deteriorated to the extent that the brightness necessary for medical care cannot be obtained even if the voltage is adjusted, the light source must be replaced immediately. An alert such as “The light source needs to be replaced. Please contact the sales office” (S27) is displayed. When this alert is displayed on the digital display panel 40 in the doctor table 33 of the dental examination table in FIG. 2, for example, “ERROR-2” is displayed.

In the present embodiment, the light source of the dental handpiece is described as that of a halogen lamp, but the light source is not limited to this and may be an LED or the like.

Next, a dental handpiece with automatic lighting control will be described.
In the first embodiment, the intraoral illumination switch 55 is turned ON, and the intraoral illumination is turned on when the instrument such as the dental air turbine 19 is removed from the instrument hanger 34. 2, when the automatic illumination switch 56 (not shown) is turned ON, the illuminance sensor 4 detects the ambient brightness when the instrument is removed from the instrument hanger 34, and is below a predetermined illuminance. Is an example in which the intraoral illumination is automatically turned on. The apparatus of this embodiment can also be implemented using a CPU as shown in FIG. 1 or a control circuit not using a CPU as shown in FIG.

FIG. 10 is a flowchart of a dental handpiece with automatic lighting control.
The automatic lighting switch 56 on the digital display panel 40 of the dental examination table 22 in FIG. 3 is turned on. (At this time, the intraoral illumination switch 55 is turned off)
Further, by removing the dental air turbine 19 provided on the instrument hanger 34 of the doctor table 33, the intraoral automatic lighting output is turned on (S24).
If the intraoral automatic lighting output is OFF, the process returns to S24. When the intraoral automatic lighting output is ON, the ambient illuminance is detected by the illuminance sensor 4, and it is checked whether the ambient illuminance is a predetermined value or less (S30). If the ambient illuminance is less than the predetermined value, the light source 5 is turned on (S16). The predetermined value is inputted in advance to the storage means 14 using the setting means 12 such that the illuminance is turned on in the oral cavity.
After the light source is turned on (S16), the same processing as the routine from S12 to S17 in Example 1 is performed to check whether the intraoral automatic lighting output is OFF (S25). If the intraoral automatic lighting output is not OFF, the process returns to S30, and it is checked whether the ambient illuminance is equal to or less than a predetermined value. repeat. When the intraoral automatic lighting output is turned off, the flowchart is ended (S25).
If the ambient illuminance is not less than the predetermined value in S30, the light source 5 is turned off. (S22)
After turning off the light source 5, it is confirmed whether the intraoral automatic lighting output is OFF (S25). If it is OFF, the flowchart is ended. When the intraoral automatic lighting output is not OFF, the process returns to S30 and is repeated until the intraoral automatic lighting output is similarly turned OFF.

In the present embodiment, the light source of the dental handpiece is described as that of a halogen lamp, but the light source is not limited to this and may be an LED or the like.
In the present embodiment, the case where the dental handpiece is a dental air turbine has been described. However, the dental handpiece may be a handpiece other than the dental air turbine. The same effect can be obtained by providing similar control means at the time of scaling treatment in the mouth, at the time of intraoral observation in the case of an intraoral camera handpiece, and at the time of laser treatment in the case of a laser handpiece.

DESCRIPTION OF SYMBOLS 1 Dental handpiece 2 Tooth 3 Reflected light 4 Illuminance sensor 5 Light source 6 Display part 7 Speaker 8 Warning means 9 Input / output control part 10 CPU (central processing unit)
DESCRIPTION OF SYMBOLS 11 LED lamp 12 Setting means 14 Memory | storage means 19 Dental air turbine 20 Dental micromotor 21 Dental ultrasonic scaler 22 Dental examination table 31 Base 32 Patient chair 33 Doctor table 34 Instrument hanger 35 Unit main-body part 36 Auto Karan 37 Spitton bowl 38 Nozzle for cup water supply 39 Assistant hanger 40 Digital display panel 51 Comparison means 53 Monitoring means 54 Control means 55 Intraoral illumination switch 56 Automatic lighting switch

Claims (8)

An illuminating means for illuminating the subject and an illuminance detecting means for detecting the reflected illuminance from the subject are provided in the vicinity of the tip of the hand-held member, a monitoring means for monitoring the current and voltage supplied to the illuminating means, and a predetermined value Storing means for storing the illuminance detection value and / or the current and voltage monitoring value and the predetermined value, and the control means for controlling the current and voltage value from the value obtained from the comparing means. Illuminated dental handpiece. The illuminated dental handpiece according to claim 1, further comprising setting means for arbitrarily setting a predetermined value stored in the storage means. 3. A warning unit for comparing the monitoring value obtained from the monitoring unit with a predetermined value stored in the storage unit and detecting an abnormality to generate a warning. Illuminated dental handpiece. 4. The warning means is a sound output means for informing with an alarm sound or sound, a warning light lighting / flashing means for lighting or blinking a warning light, and a display means for displaying characters or figures on the screen. Illuminated dental handpiece. 3. The illuminance detecting means detects ambient illuminance and automatically turns on the illuminating means when the detected value is lower than a predetermined value stored in the storage means. Illuminated dental handpiece. The illuminance detection value obtained from the illuminance detection means and a predetermined value stored in the storage means are compared, the current and voltage values are controlled, and the optimum illuminance is automatically dimmed 1 to The illuminated dental handpiece according to 2. The dental handpiece is a micromotor, an air turbine, an ultrasonic scaler, an air scaler, an intraoral camera, a tooth cleaning device, or a laser handpiece, according to any one of claims 1 to 7. Illuminated dental handpiece. An illuminating means for illuminating the subject and an illuminance detecting means for detecting the reflected illuminance from the subject are provided in the vicinity of the tip of the hand-held member, and a monitoring step for monitoring the current and voltage supplied to the illuminating means, and a predetermined value A dentist with illumination, comprising: a storage step for storing the illuminance; a comparison step for comparing the predetermined value with the detected illuminance value and / or monitoring value; and a control step for controlling the current and voltage values from the values obtained from the comparison step Control method for handpieces.