JP2003305120A - Medical apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical apparatus having an external display lamp which can alleviate patient's discomfort due to more than necessary light emission by suppressing the more than necessary light emission while improving visibility and which can improve safety. <P>SOLUTION: The medical apparatus comprises: an operating unit for performing a predetermined operation for a treatment, and the external display lamp 16 for lighting or flashing based on the operating state of the operating unit to inform the state to a circumference. In this apparatus, the lamp 16 is controlled in a light emitting quantity at the lighting or flashing time based on the brightness of the circumference, and dimmed when it is detected by a human body detecting means that an operator exists near an operation input unit. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical device such as a blood purification device for purifying blood of a patient while circulating it extracorporeally or an infusion device for administering a drug into the patient's body.

[0002]

2. Description of the Related Art Generally, in dialysis treatment, a puncture needle attached to the tip of a blood circuit is punctured into the patient's body, and the blood of the patient is circulated extracorporeally in the blood circuit, and a dialyzer connected midway. Is being purified.
The dialyzer is connected to a dialyzer, and is configured to supply the dialysate by the dialyzer and to discharge the dialysate containing waste products in blood.

That is, the dialyzer has a blood flow path through which the patient's blood flows (both ends are connected to the arterial blood circuit and the venous blood circuit) and a dialysate flow path through which dialysate flows (both ends are dialyzed). Is connected to the dialysate introduction line and the dialysate discharge line of the device), and since these flow paths are partitioned through the hollow fiber membrane, the waste in blood flowing through the blood flow path is abolished. It is said that the substance permeates the dialysate in the dialysate flow path to purify the blood and return the purified blood to the patient's body.

An operator such as a doctor is provided with an operation input section for starting or ending the dialysis treatment or for setting or changing the dialysis treatment condition, and a predetermined operation is performed based on an input signal from the operation input section. The operation unit that performs the operation of (1) (including start and stop of the apparatus and control based on various settings) is mainly disposed inside the apparatus. Among these, as the operation input unit, a touch operation type switch displayed on the liquid crystal display panel, an operation switch and an operation dial capable of mechanical input operation, and the like can be mentioned.

By the way, in general, a plurality of dialysis machines are generally installed in one treatment room, and a small number of doctors or nurses collectively manage or operate the dialysis machines. It's a reality. In view of this situation, a general dialysis machine is provided with an external indicator light that is lit up or blinks depending on the state of the above-mentioned operation unit (when the dialysis treatment is completed, when the apparatus is abnormal, etc.), and stands up above it. It is configured to notify a doctor or the like in the state of a specific dialysis machine.

The external indicator lamp is provided at the tip of a pole extending above the main body of the dialysis machine in which the operating part and the like are provided, and is composed of a plurality of LEDs which emit light of a predetermined color.
The LED emits light so that it can be viewed from a distance. The LEDs are on / off controlled according to the state of the operating unit, and when turned on, the LEDs of a predetermined color emit light to notify a specific state.

[0007]

However, the above-mentioned conventional medical device has the following problems because the light emission of the external indicator lamp is performed only by the on / off control. That is, the external indicator light needs to be set to a relatively high brightness so as to be brightly emitted so that it can be easily seen even in the daytime, but when the surroundings are dark such as night or bad weather, the dialysis machine treats it. It may illuminate a patient being treated or a patient being treated in the surroundings with more brightness than necessary, and when the patient feels dazzling, it may cause discomfort.

On the other hand, if the brightness of the external indicator lamp is set to be low in order to alleviate such a problem, the visibility is deteriorated when the surroundings are bright such as in the daytime, and a doctor or the like may miss the notification. There is. In such a case, the treatment for the patient is delayed and there is a safety problem.

The present invention has been made in view of the above circumstances, and it is possible to suppress undesired light emission while improving the visibility and reduce the discomfort of the patient due to the unnecessary light emission. An object of the present invention is to provide a medical device equipped with an external indicator light that can improve safety.

[0010]

The invention according to claim 1 is
A medical device comprising: an operating unit that performs a predetermined operation for treatment; and an external indicator light that lights up or blinks based on the operating condition of the operating unit and notifies the surroundings of the operating condition. The light is characterized in that the light emission amount at the time of lighting or blinking is controlled based on the ambient brightness.

According to a second aspect of the present invention, there is provided an operation input section for an operator to perform an input operation, and a human body detecting means for detecting the presence of the operator in the vicinity of the operation input section. It is characterized in that the light emission amount at the time of lighting or blinking is controlled based on the brightness of the surroundings, and the light is dimmed when the operator is detected by the human body detecting means.

According to a third aspect of the present invention, a brightness sensor for detecting ambient brightness is provided, and the external indicator light is controlled in light emission amount during lighting or blinking based on detection by the brightness sensor. It is characterized by that.

According to a fourth aspect of the present invention, the amount of light emitted from the external indicator lamp when the external indicator lamp is lit or blinks is controlled based on a set time.

According to a fifth aspect of the present invention, it is possible to set a light emission amount at the time of lighting or blinking by an input operation by the operation input unit.

According to a sixth aspect of the present invention, the external indicator light is turned on or blinks when an abnormality in the operating unit is detected or when the treatment is completed.

According to a seventh aspect of the present invention, the human body detecting means has a light emitting means for irradiating infrared rays and a light receiving means for receiving the reflection thereof, and the operator receives the reflection by the light receiving means. It is characterized by detecting that the user is near the operation input unit.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. The medical device according to the present embodiment supplies the dialysate to the dialyzer (blood purifier) connected to the blood circuit while circulating the blood of the patient extracorporeally by the blood circuit, and removes the blood in the blood discharged from the dialyzer. It is composed of a dialyzer for collecting dialysate containing waste products, and as shown in FIG. 1, mainly comprises a dialyzer body 1, an operation input section 12, and an external indicator lamp 16.

The dialyzer main body 1 has two ports (a supply port 1a for supplying a dialysate to the dialyzer and an inlet port 1b for introducing the dialysate discharged from the dialyzer) formed on the front face thereof, which are connected to the dialyzer. As shown in FIG. 2, the supply port 1a and the introduction port 1b are connected to the dialysate introduction port 2a and the dialysate discharge port 2b of the dialyzer 2 connected to the blood circuit 3, respectively.

Inside the dialyzer main body 1, a supply line L1 connecting a port A connected to a clean water supply source and the supply port 1a, a port B for discharging dialysate after dialysis, and an introduction port 1b. A discharge line L2 connecting the two is provided, and the reciprocating pump 4 is provided across the supply line L1 and the discharge line L2. The reciprocating pump 4 is provided with a plunger 4a that reciprocates while defining two internal pump chambers, and the pump chambers 4b and 4c communicate with the supply line L1 by the plunger 4a.
Are formed.

The supply line L1 is provided with a deaeration mechanism consisting of a warmer 5, a deaeration pump 6, a deaeration chamber 7, a circulation line L3 and an air discharge line L4, which is supplied from a port A. It is possible to bleed out the air contained in the purified water, and the tank lines L5 and L6 connected to the tank T containing the stock solution of dialysate, and the suction lines connected to the tank lines L5 and L6 Pump 8, 9
A mixing mechanism including the mixing chambers 10 and 11 is formed so that a dialysate having a predetermined concentration can be prepared. Further, although not shown, a water removing pump and the like are disposed on the discharge line L2 side of the reciprocating pump 4.

Here, the operating part of the present invention refers to various devices formed in the dialysis machine main body 1, and performs any operation that acts on the body of the patient based on an input signal from an operation input part 12 described later. It is something to do. That is, the control of the discharge amount of the pump, the opening and closing of the solenoid valve, etc. are mainly performed based on the input from the operation input unit 12, and the body of the patient is treated under appropriate treatment conditions set by an operator such as a doctor. Since it works, it means that the operation is based on the operation unit.

Further, the upper surface of the dialyzer body 1 is connected to a syringe pump 13 for administering a drug to the blood circuit 3 and a drip chamber (not shown) of the blood circuit 3 to detect the blood circuit pressure. Line connection ports P1-P
3 and the like are formed. Further, an arm 14 is formed laterally from the dialysis machine main body 1, and a pole 15 is extended upward from the arm 14. An external indicator lamp 16 is formed at the tip of the pole 15 and includes an LED that emits light according to the operating condition of the operating unit.

The external indicator lamp 16 emits an LED of a predetermined color according to the status of the operating unit, and the medical staff such as doctors around the operating status of the dialysis device (dialysis treatment, dialysis completion, or occurrence of abnormality). Etc.), and the notification can save the labor of the medical staff. Such external indicator light 1
6, the light emission amount (luminance) is controllable, and is configured to emit light based on a signal from the CPU 19 and the dimming circuit 22 (see FIG. 3).

The operation input section 12 is used by an operator such as a doctor or a nurse to give an instruction to the operating section of the dialysis machine main body 1, and a liquid crystal display panel for displaying the operating status of the operating section. 12a (display unit) and its housing 12b. Liquid crystal display panel 12a
A backlight (not shown) is provided in the display device, and when a human body detecting unit 18 (described later) detects an operator, the display device can turn on or increase the brightness to make a predetermined display easy to see.

As shown in FIG. 4, the liquid crystal display panel 12a displays various operating conditions (including setting conditions) of the operating unit such as the remaining dialysis time and the water removal speed, and within a predetermined range on the screen ( For example, "Alarm Rse" displayed on the right side of the screen.
"T", "Treatment start", "HP fast forward", "Continuous HP", "End dialysis", within the rectangular range and the "Treatment mode", "SN mode", "Water removal profile", and "Water removal profile" displayed at the center of the screen. A touch operation type switch that can be operated is displayed by touching with a finger, for example, in a rectangular range in which the letters “conductivity profile” are described.

In addition to the operation input section composed of the touch operation type switches, an operation dial 12ba and a plurality of operation buttons 12bb to 12be capable of mechanical input operation are formed on the lower portion of the housing 12b of the display panel 12a. Cage,
The operation dial 12ba and the operation buttons 12bb to 1b
2be can also instruct the operation of a predetermined operation unit. Note that these are collectively referred to as an operation input unit.

Further, inside the housing 12b, a speaker 17 is provided as a sound output means for outputting a predetermined sound such as a warning sound according to the operating condition of the operating section. The speaker 17 has a controllable volume, and is configured to output a sound based on a signal from a CPU 19 (see FIG. 3) described later. The housing 12b facing the output part of the speaker 17 is provided with a plurality of holes so that sound can be efficiently output to the outside.

Further, a human body detecting means 18 for detecting that the operator is near the operation input section 12 is provided at the bottom of the housing 12b. Such human body detecting means 18
5 comprises a reflection type infrared sensor having a light emitting means 18a for radiating infrared rays forward and a light receiving means 18b for receiving the reflected wave thereof, as shown in FIG.
When the reflected light is received at, it is detected that the operator is near the front of the operation input unit 12.

That is, when the operator is near the front of the operation input unit 12, the infrared light emitted from the light emitting means 18a toward the front of the operation input unit 12 is reflected by the operator and received by the reflection. Since light can be received by the means 18b, it is possible to detect the presence of an operator. On the other hand, if there is no operator near the front of the operation input unit 12, the infrared rays emitted from the light emitting means 18a will not be reflected and the light receiving means will be received. Since there is no light reception by 18b, it can be recognized that there is no operator.

As described above, since the detection is carried out by receiving and emitting the infrared rays, the operator can always be detected accurately. Further, since the infrared rays are configured so that they can be emitted only in front of the operation input unit 12, for example, they do not react to a patient who is undergoing dialysis treatment laterally, and only the operator can be detected. Therefore, false detection can be suppressed.
It should be noted that the operation input unit 1 is used instead of the human body detection unit having such a configuration.
2 Other means capable of detecting the presence of the operator in the vicinity (a sensor for detecting heat generated by the human body, an image recognition means for detecting the operator from an image captured in the vicinity of the operation input unit 12, etc.) may be used. .

On the other hand, as shown in FIG. 3, a CPU (Central Processing Unit) 19 is arranged in the dialysis machine main body 1, and the CPU 19 includes an operation input section 12, a brightness sensor 20, and a speaker 17. Also, the human body detecting means 18 is electrically connected to the external indicator lamp 16 via the input / output circuit 21 and the dimming circuit 22.

Here, the brightness sensor 20 is arranged at any position in each dialysis machine and detects the brightness around the dialysis machine. The detected brightness is converted into an electric signal. For transmitting to the input / output circuit 21. The detection signal input to the input / output circuit 21 is the CPU
After being transmitted to 19, where the predetermined arithmetic processing is performed,
The result is sent to the dimming circuit 22.

In the dimming circuit 22, preset dimming data is set, and based on the dimming data and the calculation processing result by the CPU 19, the external indicator lamp 1
6 is configured to control the light emission amount. That is, it is possible to control the amount of light emission when the external indicator lamp 16 is turned on or blinks based on the ambient brightness of each dialysis machine.

When the human body detecting means 18 detects an operator, a detection signal is transmitted to the CPU 19 via the input / output circuit 21, the CPU 19 recognizes the operator, and the external indicator lamp 16 lights up or blinks. In this state, when the operator detection signal from the human body detection means 18 is transmitted to the CPU 19, the external indicator lamp 1
The lighting or blinking of 6 is dimmed. That is,
If the external indicator lamp 16 is lit or blinking and the human body detecting means 18 detects the operator, the CPU 1
Reference numeral 9 gives an instruction signal to the dimming circuit 22 to dimm the external indicator lamp 16 to reduce its brightness.

With such a structure, the external indicator lamp 16 is dimmed when the operator is detected by the human body detecting means 18 while controlling the amount of light emission at the time of lighting or blinking based on the ambient brightness. To reduce the discomfort of a patient who is undergoing dialysis treatment around the external indicator light 16 without illuminating it more brightly than necessary while improving the visibility by the emission of the external indicator light 16. You can

Specifically, since the surroundings of the dialysis machine are bright in the daytime, the amount of light emitted when the external indicator lamp 16 is turned on or blinking is increased in order to enhance the visibility, and the surroundings of the dialysis machine are dark at night. External indicator lamp 1 to suppress the above light emission
It is possible to reduce the amount of light emission when 6 is turned on or blinks. Even in the same time zone, since the brightness around the dialysis machine is different between the window and the back of the treatment room, the amount of light emission (luminance) at the time of lighting or blinking of the external indicator lamp 16 is displayed at the window. The amount of light emission (luminance) on the back side can be increased to improve the visibility and reduce the burden on the patient.

According to the above configuration, the amount of light emitted when the external indicator lamp 16 is turned on or blinking is controlled based on the brightness of the surroundings. It is possible to suppress unnecessary light emission and reduce the discomfort of the patient due to the unnecessary light emission. Also,
Since the visibility can be improved, it is possible to prevent a doctor or the like from missing the notification by the external indicator lamp 16 and improve the safety.

Furthermore, when a large number of dialysis machines are installed in the same treatment room, a medical worker such as a doctor is in front of the operation input unit 12 among the dialysis machines (that is, for the dialysis machines). It is possible to recognize from a distant place what is considered to be some kind of treatment or monitoring), and it is understood that other doctors do not have to rush to the medical device. Can be omitted. Further, since the external indicator lamp 16 is automatically dimmed when the human body detecting unit 18 detects the operator, it is possible to reduce the running cost of the external indicator lamp 16 in addition to the above effect.

In addition, with respect to the external indicator lamp 16 configured as described above, it is possible to set the amount of light emission at the time of lighting or blinking by an input operation by the operation input unit 12. Therefore, the light emission amount of the external indicator lamp 16 controlled based on the detection value of the brightness sensor 20 can be appropriately set in advance by a medical staff such as a doctor, so that the light emission amount can be set to a desired value.

Here, in the present embodiment, the brightness sensor 20 directly detects the ambient brightness in the dialysis machine, but it is equipped with a clock function and the external indicator lamp 16 is turned on or blinks based on the set time. You may make it control the light emission amount at this time. In this case, assuming the normal ambient brightness at a predetermined time, the external sensor 16 is set to light or blink at a desired time with a specific light emission amount. Although the accuracy is inferior to that of the external display lamp, the light emission amount of the external display lamp 16 can be controlled according to the ambient brightness with a simple and general-purpose configuration.

When the human body detecting means 18 detects an operator, it sends a detection signal to the CPU 19 so that the CPU 19 recognizes the operator and, in the state where the detection signal is sent, the operation input section 12 When there is an input signal from, while permitting the operation of the operation unit based on the input signal, in the state where the detection signal is not transmitted,
When there is an input signal from the operation input unit 12, it may be considered that the input is not made by the operator, and the operation of the operation unit based on the input signal may not be permitted and may be invalidated.

In this case, since the operation unit operates based on the input from the operation input unit 12 only when the human body detecting unit 18 detects the operator, the operation unit 12 does not have an operator in the vicinity thereof. It is possible to avoid the operation of the operation unit due to a failure, and it is possible to achieve both operability in the operation input unit 12 and safety for the patient. Specifically, for example, when a malfunction such as a failure of the operation input unit 12 causes the fast-forward switch of the chemical injection pump to remain on when a person is not present near the operation input unit 12, excessive injection of the chemical liquid is performed. However, according to the present embodiment, since the input operation is not permitted when a person is not near the operation input unit 12, the malfunction can be prevented.

In addition, a separate operation means (for example, the housing 12b)
The above-mentioned control by the CPU 19 can be released by operating a mechanical switch or the like provided in the. As a result, the human body detection means 1 is operated according to the intention of the operator.
Whether the operation unit performs the operation based on the input by the operation input unit 12 only when the operator is detected by 8, or based on the input of the operation input unit 12 regardless of the detection of the operator by the human body detection unit 18. It is possible to select whether to operate the operation unit, and it is possible to further improve the operability of the dialysis machine.

Further, when the human body detecting means 18 detects the operator and a detection signal is transmitted to the CPU 19, as described above,
The backlight of the liquid crystal display panel 12a is controlled to be turned on or increased in brightness. Such lighting makes it possible to make the display of the liquid crystal display panel 12a easy to see, and also enables the input operation by the touch operation type switch described above. Therefore, the display and input operation by the liquid crystal display panel 12a which also serves as the display unit and the operation input unit is performed only when the human body detecting unit 18 detects the operator.
Both operability and safety can be achieved, power consumption by the display unit can be suppressed, and the running cost of the medical device can be reduced.

In addition, during dialysis treatment, a doctor or the like regularly confirms the data displayed on the liquid crystal display panel 12a, and in the past, the backlight is confirmed every time the confirmation is performed. While it is necessary to light up or increase the brightness, according to the above configuration, the backlight or the amount of light emission of the backlight is increased only when the operator such as a doctor approaches the front of the operation input unit 12. Therefore, labor saving can be achieved.

Furthermore, when the detection signal is transmitted to the CPU 19, the output sound from the speaker 17 is controlled to be turned off. As a result, in the case where the dialysis machine is configured to output sound from the speaker 17 when some abnormality occurs or when the dialysis treatment is completed, a doctor or the like only needs to approach the operation input unit 12. Since the output sound can be stopped, labor saving can be achieved as compared with the conventional case where the output sound is stopped by a separate manual operation. The output sound is controlled by the CPU 19
The output sound is not limited to the one that is stopped when the detection signal is transmitted to, and the output sound may be reduced. In this case, it is possible to minimize deterioration of the surrounding environment due to sound output.

Although the present embodiment has been described above, the present invention is not limited to this, and can be applied to, for example, other forms of dialysis equipment. That is, in the present embodiment, the dialyzer body 1 supplies the dialyser with a predetermined concentration from the concentrated dialysate solution to the dialyzer, but the dialyser with the predetermined concentration is prepared by a separate device. Incidentally, the present invention can be applied to a dialysis device that supplies or discharges such a dialysate to a dialyzer. In addition to the medical device applied to hemodialysis (HD) as in the embodiment, blood for hemodiafiltration (HF), hemodiafiltration (HDF), and plasma separation such as blood purification for extracorporeal circulation of a patient's blood. The present invention can be applied to all purification devices.

Further, the present invention can be applied to an infusion device having an external indicator lamp in addition to the blood purification device. Such an infusion device is for administering a drug into the body of a patient, and like the above-described embodiment, an external indicator lamp that lights up based on the operating status of the operating unit and notifies the surroundings of the operating status is By controlling the amount of light emission at the time of lighting based on the brightness of, it is possible to improve the visibility and suppress the burden on the patient.

Of course, in addition to the above blood purification device and infusion device,
The present invention can be applied to general medical devices that adversely affect the body of a patient. In the present embodiment, the light emission amount when the external indicator lamp 16 is turned on or blinks is controlled based on the detection value of the brightness sensor 20 and the detection of the human body detecting unit 18, but the detection of the brightness sensor 20 is performed. The amount of light emission when the external indicator 16 is turned on or blinking may be controlled based on only the value.

[0050]

According to the first aspect of the present invention, since the amount of light emitted when the external indicator is turned on or blinking is controlled based on the ambient brightness, the visibility of the external indicator of the medical device is improved. However, it is possible to suppress unnecessary light emission and reduce the discomfort of the patient due to the unnecessary light emission. Also,
Since the visibility can be improved, it is possible to prevent a doctor or the like from missing the notification by the external indicator light, and it is possible to improve the safety.

According to the second aspect of the invention, the external indicator lamp is dimmed when the operator is detected by the human body detecting means while controlling the light emission amount when the external indicator lamp is turned on or blinking based on the ambient brightness. , It is possible to reduce the discomfort of the patient while improving the visibility, and even from a distance, a medical device such as a doctor in front of the operation input unit can be used to reduce the discomfort of the patient. It can be recognized, and it can be understood that another doctor or the like does not have to rush to the medical device, so that labor can be saved. Furthermore, since the external indicator light is dimmed when the human body detecting means detects the operator, the running cost of the external indicator lamp can be reduced in addition to the above effect.

According to the third aspect of the invention, since the amount of light emitted when the external indicator is turned on or off is controlled based on the detection by the brightness sensor, there is a bright place and a dark place in the same treatment room. The amount of light emission can be controlled according to the location, and the discomfort of the patient can be reduced more effectively while improving the visibility.

According to the fourth aspect of the present invention, the amount of light emitted when the external indicator is turned on or blinking is controlled based on the set time. Therefore, the amount of light emitted by the external indicator is controlled by a simple and versatile structure. Can be controlled according to the ambient brightness.

According to the fifth aspect of the present invention, since the light emission amount during lighting or blinking can be set by the input operation by the operation input unit, the light emission amount during lighting or blinking is controlled based on the ambient brightness. At this time, the amount of emitted light can be set to a desired value.

According to the invention of claim 6, the external indicator lamp is
It lights up or blinks when an abnormality in the operating part is detected or when the treatment is completed, so it lights up or blinks at the same time as in the conventional case, and it improves the visibility without giving discomfort to the operator and improving patient visibility. The discomfort of can be reduced.

According to the seventh aspect of the present invention, the infrared light emitted from the light emitting means is reflected by the light receiving means to detect that the operator is in the vicinity of the operation input section. The operator can always be detected accurately by the means.

[Brief description of drawings]

FIG. 1 is a front view showing a dialysis machine according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing an internal configuration of a dialysis machine main body in a dialysis machine according to an embodiment of the present invention.

FIG. 3 is a CP in a dialysis machine according to an embodiment of the present invention.
Block diagram showing U and peripheral devices electrically connected thereto

FIG. 4 is an enlarged schematic diagram showing an operation input unit in the dialysis machine according to the embodiment of the present invention.

FIG. 5 is a schematic diagram for explaining the operation of the human body detecting means in the dialysis device according to the embodiment of the present invention.

[Explanation of symbols]

1. Main body of dialysis machine 2 ... Dializer (Blood Purifier) 3 ... Blood circuit 4 ... Reciprocating pump 5 ... warmer 6 ... Deaeration pump 7 ... Deaeration chamber 8, 9 ... Inhalation pump 10, 11 ... Mixing chamber 12 ... Operation input section 12a ... Liquid crystal display panel 12b ... housing 13 ... Syringe pump 14 ... Arm 15 ... Paul 16 ... External indicator 17 ... speaker 18 ... Human body detection means 18a ... Light emitting means 18b ... Light receiving means 19 ... CPU 20 ... Brightness sensor 21 ... Input / output circuit 22 ... Dimming circuit

Claims (7)

[Claims] 1. A medical device comprising: an operating unit that performs a predetermined operation for treatment; and an external indicator light that lights up or blinks based on the operating condition of the operating unit and notifies the surroundings of the operating condition. In the device, the external indicator light may be controlled in light emission amount during lighting or blinking based on ambient brightness. 2. An operation input section for an operator to perform an input operation, and a human body detection means for detecting the presence of the operator in the vicinity of the operation input section, wherein the external indicator lamp has a surrounding brightness. 2. The medical device according to claim 1, wherein the light emission amount at the time of lighting or blinking is controlled on the basis of the light intensity, and the light intensity is reduced when the operator is detected by the human body detecting means. 3. A brightness sensor for detecting the brightness of the surroundings is provided, and the external indicator light is controlled in the amount of light emission at the time of lighting or blinking based on the detection by the brightness sensor. The medical device according to claim 1 or 2. 4. The medical device according to claim 1, wherein the external indicator light is controlled in light emission amount during lighting or blinking based on a set time. 5. The external indicator lamp according to claim 2, wherein the amount of light emitted when the external indicator lamp is turned on or blinks can be set by an input operation by the operation input unit. Medical device. 6. The medical device according to claim 1, wherein the external indicator light is turned on or blinks when an abnormality of the operating unit is detected or when the treatment is completed. apparatus. 7. The human body detecting means includes a light emitting means for irradiating infrared rays and a light receiving means for receiving the reflection of the infrared ray. By receiving the reflection by the light receiving means, the operator is near the operation input section. The medical device according to any one of claims 2 to 6, wherein the medical device detects that the medical device is present.