JP2007089751A - Medical laser apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical laser apparatus eliminating the interruption of a therapy due to sudden battery exhaustion in the middle of the laser therapy. <P>SOLUTION: This medical laser apparatus is provided with a secondary battery 1 mounted on a body, a battery residual quantity monitoring section 7 monitoring the residual quantity of the secondary battery, a laser oscillator 3 emitting a laser light by a power supply to be supplied at least from the secondary battery, a laser light guide section 6 guiding the laser light irradiated from the laser oscillator to an affected part of a patient, and a laser control section 2 controlling a laser light output sent from the laser oscillator. This medical laser apparatus is provided with an alarm emission section 8 emitting a warning sound when the residual quantity of the battery monitored by the battery residual quantity monitoring section falls below a prescribed value to notify the lowering state of the residual quantity of the battery, even in the middle of the laser therapy when a user pays close attention to the patient's affected part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a medical laser apparatus including a secondary battery as a power supply source of a laser light source.

  In recent years, laser surgical devices of several W to several tens W class for the purpose of incision, transpiration, hemostasis, and coagulation of affected tissues have been widely used in the medical and dental fields.

  A conventional medical laser apparatus will be described with reference to the drawings. FIG. 4 is a block diagram showing a configuration of a conventional medical laser device. As shown in FIG. 4, the conventional medical laser apparatus includes a commercial power supply input unit 101, a laser control unit 102, a laser driving unit 103, an operation unit 104, a display unit 105, and a laser light guide unit 106.

  The commercial power input unit 101 converts a commercial power of AC 100V into direct current and supplies power to each block inside the apparatus. The operation unit 104 is an interface for a user to input an irradiation condition such as a laser beam output and an irradiation pattern and an irradiation start / stop instruction. Information input from the operation unit 104 is output to the laser control unit 102. A part of the operation unit 104 includes a foot pedal. A user sets irradiation conditions, enters an irradiation standby state, and then presses the foot pedal to issue a laser irradiation command.

  The laser control unit 102 sends a signal to the laser transmitter 103 so that the laser beam is irradiated under the irradiation condition set by the user using the operation unit 104. In addition, the laser control unit 102 causes the display unit 105 to display information received from the operation unit 104 and received. The display unit 105 is provided on the front panel on the upper part of the main unit, and indicates the set irradiation condition and the current irradiation state with LEDs or the like.

  The laser oscillator 103 is, for example, an RF oscillation type metal sealed 10 W output carbon dioxide laser tube (laser wavelength 10.6 μm), and the laser output is adjusted according to the duty of the pulse signal sent from the laser control unit 102. . The laser light guide unit 106 is an optical fiber probe that efficiently guides the laser light emitted from the laser oscillator 103 to the surgical field.

  As shown in FIG. 4 described above, in the conventional medical laser apparatus, power is supplied by connecting a power cord to a commercial power outlet provided on a wall surface or the like.

In a low power consumption type laser treatment device using a weak output semiconductor laser for the purpose of alleviating pain, it has also been proposed to mount a battery as a power source (see, for example, Patent Document 1). On the other hand, all laser surgical devices that require laser light output of several watts or more for the purpose of incision, transpiration, hemostasis, and coagulation of affected tissues have all used commercial power as a power supply source. In particular, in the case of a carbon dioxide laser surgical apparatus using carbon dioxide as a laser medium, the resonator length constituting the oscillation tube is long, so that it becomes a floor-standing vertical casing and moves by a caster attached to the bottom surface of the pedestal. . In the case of a practitioner's office or a dental office where several patient clinics or chairs are lined up, one doctor tends to perform a plurality of patient treatments in a time-sharing manner. Under these circumstances, when using this type of medical laser device, the doctor dragged the device to the vicinity of the individual patient examination table or examination chair and then turned on the device power again for patient treatment. .
Japanese Patent Laid-Open No. 58-89243 (2nd page, upper left column, FIG. 2)

  However, when moving the device to the vicinity of the target patient table or chair or rotating the device on the spot, the doctor who is the user hooks the power cord connected to the device with his / her foot or casters Often entangled and disturbed. Also, when moving the device, remove the plug from the power outlet, pull the power cord that is in contact with the floor from the main unit, reconnect the plug to a new power outlet, and then turn the power on again. In addition to being troublesome, there was a problem in terms of hygiene management because it was necessary to touch a power cord that has a high possibility of bacterial adhesion. If the power outlet itself is not in the vicinity of the patient's clinic or chair where the device is to be moved, it may be connected with an extension cable of a commercially available parallel vinyl wire that is not standardized. It becomes a problem from various aspects such as waterproofness.

  The operation of air conditioning, lighting, and other electrical equipment, diagnostic treatment equipment, and sterilization equipment is naturally concentrated in the daytime consultation hours. However, in general clinics and private clinics, the current consumption exceeds a specific power system. There was a possibility that the treatment could be interrupted by stopping laser output, etc. due to a breaker falling or voltage fluctuation. There was a problem that the total power consumption pattern was concentrated in the daytime.

  Since most of the power consumption in this device is due to the laser oscillator that oscillates lasers, simply using the battery system suddenly consumes the battery without making the user aware of it during the laser treatment, and the laser output There was a possibility that treatment had to be interrupted due to suspension or the like. In particular, a user who is performing laser treatment has a problem that it is difficult to recognize only by notification on the main body display because the patient's affected area is being watched during the treatment.

  Accordingly, a first object of the present invention is to provide a medical laser device that can be driven by a battery during a normal medical examination time. In particular, even when the user does not know the remaining battery level and starts using the apparatus in a state where the remaining battery level is insufficient, a medical laser apparatus that does not hinder the treatment is provided.

  In addition, simply by using a battery type, it may be troublesome to prepare a battery that has been fully charged before use and attach it to the main unit, or remove the discharged battery and recharge it. A second object is to provide a medical laser device that can be easily and easily charged outside the examination hours.

  A third object is to be able to continue the treatment promptly even if the battery is exhausted during the treatment.

  The fourth purpose is to always notify the user of the degree of battery consumption between treatments in order to avoid in advance the situation where the battery is suddenly consumed and the treatment must be interrupted by stopping laser output. To do.

  In addition, a fifth object is to notify the user whether the present apparatus is being discharged by battery driving or being charged, and to prompt appropriate measures.

  In particular, a sixth object is to inform a user who is difficult to reach the display portion during treatment with a sound of the degree of battery consumption and to promote appropriate treatment.

  Furthermore, the seventh object is to inform the user of the battery consumption state with a certain margin so that the treatment cannot be suddenly continued, and to promote appropriate treatment.

  It is an eighth object to provide a battery capacity that allows the treatment or the treatment for the day to be continued as it is even after a battery exhaustion alarm is sounded.

  In order to achieve the first object, a first medical laser apparatus according to the present invention includes a secondary battery mounted on a main body, and a battery remaining amount monitoring unit that monitors the remaining amount of the secondary battery. A laser oscillator that oscillates at least by a power source supplied from the secondary battery, a laser light guide that guides laser light emitted from the laser oscillator to a patient's affected area, and a laser light output that is transmitted from the laser oscillator. And a laser control unit for controlling, further comprising an alarm generating unit for generating an alarm sound when the remaining battery level monitored by the remaining battery level monitoring unit falls below a predetermined value.

  According to this configuration, since the secondary battery operates as a power supply source, a power cord is unnecessary, and it is not necessary to touch the power cord when moving. Basically, it does not need to be connected to a commercial power source during use, so it is not affected by the supply state of the commercial power source. It is possible to suppress power consumption in the medical examination time zone. There is no inconvenience such as mutual interference with other medical devices via the commercial power line.

  Especially when the remaining battery level monitored by the remaining battery level monitoring unit falls below a specified value, a warning sound is generated, so even if the user starts using the battery when the remaining battery level is insufficient. Troubles such as inability to obtain a laser beam with a high output or sudden stop of laser oscillation can be prevented beforehand.

  In particular, the user can surely recognize the situation by listening to an alarm sound associated with a decrease in the remaining battery level even during the laser treatment in which the patient's affected area is being watched.

  In order to achieve the second object, a second medical laser device according to the present invention includes a commercial power input unit, and the secondary battery supplies power from a commercial power source connected to the commercial power unit. If there is, the secondary battery is charged.

  According to this configuration, it is possible to charge the secondary battery installed in the device simply by connecting it from the power outlet to the commercial power input unit outside the clinic hours or between treatments, so it is easy to use It becomes.

  In order to achieve the third object, the third medical laser device according to the present invention includes a commercial power input unit, and there is a power supply from a commercial power source connected to the commercial power source connection unit. Is characterized in that power is supplied to the inside of the apparatus from the commercial power supply connection section.

  According to this configuration, even if the battery is depleted during the treatment, as long as it is connected from the power outlet to the commercial power input unit, power can be supplied and the operation can be continued in the same manner as a conventional medical laser device. . When combined with the second medical laser device according to the present invention, the secondary battery is also charged at the same time, so that it may be disconnected from the commercial power supply after the charged state is recovered.

  In order to achieve the fourth object, a fourth medical laser apparatus according to the present invention is provided with a battery remaining amount display unit for displaying a battery remaining amount level detected by a battery remaining amount monitoring unit. It is. As a result, the user or the surrounding person can be informed of the degree of battery consumption before and after laser treatment, and an appropriate treatment can be promoted.

  In order to achieve the fifth object, a fifth medical laser device according to the present invention is a charge / discharge state in which a charge / discharge operation of the secondary battery is performed according to a connection state of a commercial power input unit or a secondary battery. A display unit is provided. As a result, before or after the laser treatment, it is possible to inform the user or the surrounding people whether the present apparatus is being discharged by battery driving or being charged, and prompt an appropriate treatment.

  In order to achieve the sixth object, a sixth medical laser apparatus according to the present invention is provided with an alarm generation unit that generates an alarm with an alarm sound pattern different from a laser irradiation warning sound during laser irradiation. It is. This distinguishes between the laser irradiation warning sound that is emitted during laser irradiation and the alarm sound that accompanies a decrease in the remaining battery level. Can be clearly recognized.

  In order to achieve the seventh object, a seventh medical laser apparatus according to the present invention includes an alarm generation unit that generates an alarm with a plurality of types of alarm sound patterns according to a remaining battery level by a remaining battery level monitoring unit. It is provided. As a result, it is possible to notify the user who is difficult to reach the display part during treatment with a sound of the degree of battery consumption and to promote appropriate treatment. In general, if the laser output and the operation mode are constant, the current consumption does not fluctuate. Therefore, it is possible to provide detailed notification to the user as to how many hours can be used for treatment without charging.

  In order to achieve the eighth object, the eighth medical laser apparatus according to the present invention enables laser output for a predetermined time after an alarm is generated by the alarm generator, and charging to charge the secondary battery. Is started or when the remaining battery level exceeds a predetermined value, the generation of an alarm sound is stopped. As a result, the user can be informed of the battery consumption status with a certain margin so that the treatment cannot be suddenly continued, and an appropriate treatment can be promoted.

  According to the medical laser device of the present invention, even when the user does not grasp the remaining battery level and starts using the battery when the remaining battery level is insufficient, the user cannot obtain a laser beam with sufficient output or laser oscillation. It is possible to prevent troubles such as sudden stoppage.

(Embodiment 1)
A medical laser apparatus according to a first embodiment that achieves the first object of the present invention will be described with reference to FIGS.

  FIG. 1 is a block diagram showing a schematic configuration of the medical laser apparatus according to the first embodiment of the present invention. As shown here, the medical laser apparatus according to the first embodiment is the same as the medical laser apparatus shown in FIG. 4 in the background art, with the laser control unit 2, the laser oscillator 3, the operation unit 4, and the display unit 5. In addition, a laser light guide 6 is provided. The operation unit 4 is an interface for a user to input an irradiation condition such as a laser beam output and an irradiation pattern and an irradiation start / stop instruction. Information input from the operation unit 4 is output to the laser control unit 2. A part of the operation unit 4 is composed of a foot pedal. The user sets the irradiation condition, enters the irradiation standby state, and then presses the foot pedal to issue a laser irradiation command.

  The laser control unit 2 sends a signal to the laser oscillator 3 so that the laser beam is irradiated under the irradiation condition set by the user using the operation unit 4. Further, the laser control unit 2 causes the display unit 5 to display information received and received from the operation unit 4. The display unit 5 is provided on the front panel on the upper part of the main unit, and indicates the set irradiation conditions and the current irradiation state with LEDs or the like. The laser oscillator 3 is, for example, an RF oscillation type metal sealed 10 W output carbon dioxide laser tube (laser wavelength: 10.6 μm), and the laser output is adjusted according to the duty of the pulse signal sent from the laser control unit 2. . The laser light guide 6 is an optical fiber probe that efficiently guides the laser light emitted from the laser oscillator 3 to the operative field, and includes a handpiece held by the user and a chip for condensing the laser light at the tip. ing.

  The difference from the conventional medical laser apparatus is that the power supply source for supplying power to each block inside the apparatus is supplied from the secondary battery 1 made of nickel hydride instead of the commercial power supply shown in the background art. This secondary battery has a battery capacity of 9 Ah, and the calculation is such that it can be continuously irradiated for approximately 3 hours in a general current consumption state of 3 A at the time of laser irradiation. For example, assuming dental laser treatment, use of a battery for several days can be expected if irradiation is performed for several minutes to several tens of minutes per treatment.

  Further, a battery remaining amount monitoring unit 7 for monitoring the remaining amount of the secondary battery 1 is provided, and an alarm generating unit for generating an alarm buzzer sound when the remaining battery amount monitored by the battery remaining amount monitoring unit 7 falls below a predetermined value. 8 is further provided.

  The battery remaining amount monitoring unit 7 has a configuration in which a battery voltage is detected as an indicator of the remaining battery level, and an alarm sound indicating battery consumption is emitted to the user based on this value.

  FIG. 2 is a perspective view showing the external appearance of the hardware structure of the medical laser device according to the first embodiment. As shown in FIG. 2, the medical laser device according to the first embodiment includes a quadrangular columnar main body 31 and an operation panel portion 32 attached to the upper surface of the main body 31. A lower portion of the main body 31 includes a pedestal portion 33 that supports the main body 31, casters 34 attached to the bottom surface of the pedestal portion 33, and a foot pedal 35.

  Inside the main body 31, the laser control unit 2, the laser oscillator 6, and the like are accommodated. Various components other than the laser control unit 2 and the laser oscillator 6 are accommodated in the main body 31, but these components are not important in understanding the embodiment of the present invention, and therefore, they are illustrated in FIG. 2. Omission and explanation are also omitted.

  The operation panel 4, the display unit 5, and the like are mounted on the operation panel 32, and the laser light guide unit 6 is connected to the operation panel 32. 2 is an example, and the shape of the probe applicable to the laser apparatus according to the present invention is not limited to the specific example shown in FIG. For example, a mirror reflection type multi-joint manipulator or a flexible tubular hollow waveguide may be used.

  In addition, in FIG. 2, the battery 1 is stored in the pedestal portion 33, but the battery 1 may be stored in the main body 31.

  The medical laser apparatus according to the configuration shown in FIG. 2 can be moved on the floor by the caster 34. In addition, since this medical laser device uses the battery 2 as a power supply source and does not require a power cord, it can be moved between an examination table and a medical chair.

  According to this configuration, since the secondary battery operates as a power supply source, a power cord is unnecessary, and it is not necessary to touch the power cord when moving. Basically, it does not need to be connected to a commercial power source during use, so it is not affected by the supply state of the commercial power source. It is possible to suppress power consumption in the medical examination time zone. There is no inconvenience such as mutual interference with other medical devices via the commercial power line.

  Especially when the remaining battery level monitored by the remaining battery level monitoring unit falls below a specified value, a warning sound is generated, so even if the user starts using the battery when the remaining battery level is insufficient. Troubles such as inability to obtain a laser beam with a high output or sudden stop of laser oscillation can be prevented beforehand.

  In particular, even when the user is in the midst of laser treatment while paying attention to the affected area of the patient, the user can reliably recognize the state of battery consumption by listening to the alarm sound generated from the alarm sound generation unit 8 when the remaining battery level is low. I can do it.

(Embodiment 2)
Next, a medical laser device and a battery remaining amount detection method according to a second embodiment that achieves the second to eighth objects of the present invention will be described with reference to FIG.

  FIG. 3 is a block diagram showing a schematic configuration of the medical laser apparatus according to the second embodiment of the present invention. In the second embodiment of the present invention, blocks having the same functions as those of the medical laser apparatus according to the first embodiment are given the same numbers, and descriptions thereof are omitted.

  In FIG. 3, reference numeral 9 denotes a battery remaining amount display unit, which displays the battery remaining level of the secondary battery 1 detected by the battery remaining amount monitoring unit 7 with three stages of LEDs. When all three LEDs provided in the battery remaining amount display portion 9 are lit, the secondary battery 1 still has a sufficient capacity, whereas when only one LED is lit, charging is required. Indicates that the level has been consumed. For example, in the alarm sound generation unit 8, when this LED changes from three lighting to two lighting, “beep”, when changing from two lighting to one lighting “beep”, further discharge progresses, and this one LED blinks. When it is changed to, an alarm buzzer sounding “Peep” is sounded, and the remaining battery level is also distinguished and notified by a sound pattern. The alarm buzzer sound of “Peep” is synchronized with the blinking cycle of the LED, and the user can more reliably notify the battery consumption by looking at the battery remaining amount display unit 9.

  In general, if the laser output and the operation mode are constant, the current consumption will not change, so the user will be notified of a detailed battery voltage drop, such as how long it can be used for treatment without charging. it can. The state of the remaining battery level may be changed not by the alarm sound pattern but by changing the volume and tone color, and the degree of seriousness may be emphasized as the level is lowered to encourage charging.

  The battery level is displayed at the lowest level, and even after an alarm sound is generated by the alarm generator, the laser can be output as it is for 20 minutes or more, and the secondary battery can be charged by connecting to a power outlet and connecting to a commercial power source. When the start or the remaining battery level exceeds a predetermined value, the generation of the alarm sound is stopped.

  Reference numeral 10 is a commercial power input unit, 11 is a charge control unit, and 12 is a charge / discharge state display unit that is turned on when the secondary battery 1 is being charged and turned off when the secondary battery 1 is being discharged. The commercial power input unit 10 converts a commercial power of AC 100V into direct current, feeds power to each block inside the apparatus, and adjusts the charging current to the secondary battery 1 via the charging control unit 11 that controls charging.

  The charging control unit 11 performs the charging operation to the secondary battery 1 and suppresses the discharge from the secondary battery 1 into the apparatus if the AC power supply of 100 V is supplied from the commercial power input unit 10. That is, switching is performed such that power is supplied from a commercial power source if AC 100V is connected, and power is supplied from secondary battery 1 if AC 100V is not connected.

  The charging control unit 11 adjusts the charging current while monitoring the charging state of the secondary battery 1, and the secondary battery 1 is currently charging (AC 100V being connected) or discharging (AC 100V not being connected). It is the structure displayed on the charging / discharging state display part 12 so that a user may understand. For the secondary battery 1, the charged state and the discharged state can be clearly separated, so that the battery life can be kept long.

  In FIG. 2, a power supply path for secondary battery 1 discharge and a power supply path for commercial power supply are provided separately and independently, so that it can be switched to either one and a reverse current does not occur. A diode is added.

  If the secondary battery 1 is not connected, the remaining battery level display 9 indicates that the remaining battery level is empty. However, like the conventional medical laser apparatus, it operates as a dedicated device for commercial power input. I can do it.

  According to the above configuration, since the commercial power source and the secondary power source are used in combination, both can be properly used as necessary. If you want to move this device frequently during the examination hours, you can charge the secondary battery installed in the equipment simply by connecting it from the power outlet to the commercial power input outside the examination hours or between treatments. As a result, the configuration is excellent in usability.

  Even if the battery is exhausted during treatment, an alarm will sound or the remaining battery power will be displayed before it can no longer be used, so if you connect from the power outlet to the commercial power input, Power can be supplied and the operation can be continued in exactly the same manner as a conventional medical laser device.

  When the present apparatus is driven by power from a commercial power source, the secondary battery 1 is simultaneously charged in parallel, so that the user is almost unaware of the work of “charging”. Charging is performed. It is convenient for the user because the secondary battery 1 is not removed from the main unit and charged, but connected to a power outlet. There is no problem even if it is disconnected from the commercial power supply after the state of charge is restored.

  Further, since the remaining battery level display unit 9 displays the remaining battery level detected by the remaining battery level monitoring unit, the user can know the degree of battery consumption before laser treatment. The display of the battery remaining amount display unit 9 allows the user to grasp the laser treatment time that can be handled by the secondary battery drive. When an alarm sound indicating battery exhaustion is sounded from the alarm sound generating unit 8, the user is also confirmed that the remaining battery level is low.

  In addition, since a charge / discharge status display unit indicating the charge / discharge operation of the secondary battery is provided depending on the connection state of the commercial power input unit or the secondary battery, it is charged whether or not the device is currently discharged by battery drive before and after laser treatment. It is possible to inform the user of whether or not this is being done and to encourage appropriate treatment. If a warning sound is generated when the remaining battery level is low, and the commercial power supply is not connected, the situation can be solved simply by connecting to a power outlet.

  In addition, the alarm sound that accompanies the low battery level is different from the laser irradiation warning sound during laser irradiation, and an alarm is generated for each battery level, so that even during laser treatment, the display part For a user who is hard to reach, the user can clearly recognize the lowering level of the remaining battery level by the sound. Since the battery can be used continuously for a predetermined time even when the remaining battery level becomes the lowest, the treatment does not stop suddenly, and the user can be urged to take appropriate measures with a margin.

  In the case of a secondary battery such as nickel metal hydride, repeated shallow charge / discharge in a state close to full charge and overdischarge also cause a reduction in battery life. In daily medical care, it is preferable to charge the battery at night on the day when a warning sound is generated or the remaining amount is displayed below to some extent while using the battery as a basis. In the second embodiment, since the alarm can be continuously used for 20 minutes or more after the alarm sound is generated, the user may charge the battery between treatments without being panicked. Moreover, the usage which charges with this alarm sound contributes also to the lifetime extension of a battery.

  As described above, the medical laser device according to the present invention has an alarm generation unit that emits an alarm sound when the remaining amount of the secondary battery 1 is low, even during laser treatment in which the user is gazing at a patient's affected area. 8 has industrial applicability as being capable of avoiding sudden treatment interruption.

1 is a block diagram showing a schematic configuration of a medical laser apparatus according to a first embodiment of the present invention. The perspective view which shows schematic structure of the medical laser apparatus concerning Embodiment 1 of this invention. FIG. 3 is a block diagram showing a schematic configuration of a medical laser apparatus according to a second embodiment of the present invention. Block diagram showing the configuration of a conventional medical laser device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Secondary battery 2 Laser control part 3 Laser oscillator 6 Laser light guide part 7 Laser residual quantity monitoring part 8 Alarm sound generation part 9 Battery residual quantity display part 10 Commercial power supply input part 12 Charge / discharge state display part 31 Main body body 32 Operation panel 33 pedestal 34 caster 35 foot pedal

Claims (8)

A secondary battery mounted on the main body, a battery remaining amount monitoring unit that monitors the remaining amount of the secondary battery, a laser oscillator that oscillates with at least a power source supplied from the secondary battery, and an irradiation from the laser oscillator A laser light guide that guides the laser beam to the patient's affected area, and a laser control unit that controls the output of the laser beam sent from the laser oscillator, and the remaining battery level monitored by the remaining battery level monitoring unit is a predetermined value. A medical laser device further comprising an alarm generation unit that emits an alarm sound when the level is lower. 2. The medical laser apparatus according to claim 1, further comprising a commercial power input unit, wherein the secondary battery charges the secondary battery when power is supplied from a commercial power source connected to the commercial power unit. . The power supply to the inside of this apparatus is performed from the said commercial power supply connection part, when there is a power supply from the commercial power supply provided with the commercial power supply input part and connected to the said commercial power supply connection part or, 2. The medical laser device according to 2. The medical laser apparatus according to claim 1, further comprising a battery remaining amount display unit that displays a battery remaining amount level detected by the battery remaining amount monitoring unit. The medical laser apparatus according to claim 1, further comprising a charge / discharge state display unit that indicates a charge / discharge operation of the secondary battery according to a connection state of the commercial power input unit or the secondary battery. The medical laser device according to claim 1, wherein the alarm generation unit generates an alarm with an alarm sound pattern different from a laser irradiation alarm sound during laser irradiation. The medical laser device according to claim 1, wherein the alarm generation unit generates an alarm with a plurality of types of alarm sound patterns according to a remaining battery level by the remaining battery level monitoring unit. 8. The laser output is enabled for a predetermined time after the alarm is generated by the alarm generator, and the alarm sound is stopped when charging to the secondary battery starts or the remaining battery level exceeds a predetermined value. The medical laser device described.

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