JP6050693B2 - Blood glucose meter - Google Patents

Description

  The present invention relates to a blood glucose meter that displays a measured blood glucose level on a display screen.

In recent years, diabetes, whose number is rapidly increasing, is caused by abnormal pancreatic insulin secretion and decreased sensitivity to insulin.
In the treatment of diabetes, it is important to prevent the onset and progression of complications. For this purpose, it is essential to control blood glucose levels normally. For this reason, a blood glucose measuring device (hereinafter referred to as a blood glucose meter) has been developed for the patient or his / her family to easily measure the blood glucose level at home, and the applicant has developed a small blood glucose meter for self-measurement. ing.
In addition, the patent application regarding the blood glucose meter by the applicant is shown in Patent Document 1.

JP 2011-64596 A

  As mentioned above, diabetics must always manage their blood glucose level within an appropriate range in daily life. In addition, it is necessary to regularly visit a hospital, report blood glucose measurement results to a doctor, and receive life guidance. In particular, for patients undergoing treatment with drugs, doctors recommend measuring blood glucose multiple times a day from the viewpoint of controlling blood glucose normally in order to prevent complications. Yes. In particular, in the guidelines of IDF (International Diabetes Society), postprandial blood glucose level is associated with the risk of complications, and postprandial blood glucose level measurement is also recommended.

In recent years, with the advancement of electronic devices, the blood glucose meter has become a tool for providing information that will motivate patients to continue to manage blood glucose levels from simple measuring instruments.
This allows the inventors to calculate and display the average value of the patient's blood glucose level, in particular, to properly maintain the patient's blood glucose control, The function of displaying the transition in a graph and the alarm function that prompts the patient to measure the blood glucose level, etc. are adopted to improve the functionality of the blood glucose meter.

On the other hand, the blood glucose meter is used in various patients, and unlike an information device such as a personal computer, the operation must be simple. In particular, it is desired to be able to perform operations on patients who are unfamiliar with the operation of information devices, elderly patients, and patients with visual problems such as decreased visual acuity. However, adding various functions to the blood glucose meter can complicate the operation of the blood glucose meter. Specifically, for example, it is not preferable to increase the number of operation buttons in order to add a function or to deepen a menu hierarchy for calling a desired function.
The new blood glucose meter can provide various contents such as a graph display of blood glucose level and an alarm function that prompts the measurement of blood glucose level after a meal without any loss of the original purpose of the blood glucose meter. It is required to be configured as such.

  The present invention has been made in view of such points, and a blood glucose meter that can easily confirm how much the measured blood glucose level is at the time of measuring the blood glucose level is compatible with high functionality and simplicity. The purpose is to provide.

  In order to solve the above problems, a blood glucose meter of the present invention measures a blood glucose level of a patient by obtaining a predetermined signal from the measurement unit to which a measurement test paper for measuring the blood glucose level of the patient is attached, and a measurement signal. A blood glucose level measurement unit and a display unit for displaying the blood glucose level measured by the blood glucose level measurement unit are provided. The input / output control unit displays, on one side of the display unit, a scale composed of a plurality of color schemes indicating the result of classifying the blood glucose level with a plurality of threshold values, and compares the blood glucose level with the plurality of threshold values to obtain a predetermined After classification into ranks, the background color of the display unit is set to one of a plurality of color schemes according to the ranks, and the scale and the background color are integrated to form a tab.

  According to the present invention, it is possible to provide a blood glucose meter capable of easily confirming how much the measured blood glucose level is at the time of measuring the blood glucose level and having both high function and simplicity.

It is an external view of a blood glucose meter which is an example of an embodiment of the present invention. It is a block diagram which shows the hardware constitutions of a blood glucose meter. It is a block diagram which shows the function of the software of a blood glucose meter. It is the schematic which shows an example of the field structure and record of a blood glucose level table. It is a state transition diagram which shows the change of the rough state of a blood glucose meter. It is a state transition diagram which shows the change which starts from the state which the blood glucose meter sounded the alarm. It is a flowchart which shows the flow of a rough operation | movement of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the content mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the initial screen display process in the content mode of a blood glucose meter. It is a flowchart which shows the flow of the operation | movement of the exception process in the content mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the memory content display process in the content mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the memory value display process in the content mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the average value display process in the content mode of a blood glucose meter. It is the schematic which shows the change of the display screen in the memory content display process of content mode. It is a flowchart which shows the flow of operation | movement of the alarm ringing process of a blood glucose meter. It is a flowchart which shows the process which a blood glucose meter always operates regardless of which operation mode in any state of a content mode, a measurement mode, or a setting mode. It is a figure which shows the display screen of an after-meal alarm. It is a flowchart which shows the flow of operation | movement of the setting mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the measurement mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the measurement mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the exceptional process of the measurement mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the blood glucose level recording process of the measurement mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the button area | region display process of the measurement mode of a blood glucose meter. It is a flowchart which shows the flow of operation | movement of the blood glucose level display process of the content mode and measurement mode of a blood glucose meter. It is a display screen displayed on a display part in the blood glucose level display process of the measurement mode of a blood glucose meter. It is a figure which shows the variation of the face mark displayed on a display part in the process which displays the blood glucose level of the content mode and measurement mode of a blood glucose meter. It is a figure which shows the variation of the display screen displayed on a display part in the process which displays the blood glucose level of the content mode and measurement mode of a blood glucose meter. They are a display screen in the measurement mode and a display screen in the content mode. It is a table | surface which shows the function allocated to the operation button.

An outline of the blood glucose meter 101 according to the present embodiment will be described with reference to FIGS. 1 and 2.
1A, 1B and 1C are external views of a blood glucose meter 101 which is an example of an embodiment of the present invention.
The blood glucose meter 101 according to the present embodiment includes three operation buttons 104, an upper button 105 that is a first operation button, a middle button 106 that is a second operation button, and a lower button 107 that is a third operation button. In addition, a micro switch 210 (see FIG. 2) that interlocks with the cap 108 that protects the optical measurement unit 109 is provided.
When the cap 108 is removed, the measurement mode immediately shifts to the blood glucose level.
Continue pressing the middle button 106 for about 1 second or longer (hereinafter referred to as “long press”. Also, as a counter word, pressing the operation button 104 briefly is referred to as “short press”), and the blood glucose level measured and stored so far Switch to the content mode for browsing.
When the lower button 107 is pressed and held, the mode shifts to a setting mode in which various setting values of the blood glucose meter 101 are changed.

The blood glucose meter 101 has a function called an after-meal alarm, and when an alarm is set, it measures a predetermined time. When the set time has elapsed, an alarm sound is emitted through the buzzer 211.
Within one hour after the alarm sounding, the elapsed time after the alarm sounding is displayed on the liquid crystal display 103.
Further, within one hour after the alarm sound is generated, an after meal flag, which is an example of a meal flag, is automatically given to the measured blood sugar level.
The meal flag is a flag indicating whether the measured blood glucose level is a pre-meal blood glucose level or a post-meal blood glucose level based on the logical value of the flag. In this embodiment, the “post-meal flag” that sets a flag when it is after a meal is adopted, but conversely, it may be a “pre-meal flag” that sets a flag when it is before a meal.

In the blood glucose meter 101 of the present embodiment, a function for switching whether or not to give a post-meal flag is assigned to the upper button 105 in the measurement mode.
The blood glucose meter 101 is assigned a function for setting an after meal alarm in the upper button 105 in the content mode.
That is, the upper button 105 has a function related to the concept of “after meal” in both the measurement mode and the content mode.

The blood glucose meter 101 of the present embodiment has a measurement history display function that enables browsing of blood glucose levels measured in the past one by one in the past in the content mode. Furthermore, after displaying the oldest blood glucose level, an average value display function for displaying the morning average value, the daytime average value, and the evening average value of the blood glucose level measured in the most recent month is also provided.
The measurement history display function and the average value display function are switched seamlessly by an operation with the upper button 105 or the lower button 107 without displaying a menu.

  In the measurement mode, the blood glucose meter 101 of the present embodiment displays the measured blood glucose level as a numerical value, evaluates the blood glucose level in five levels, and displays a face mark corresponding to the evaluation result on the screen of the liquid crystal display 103. . Here, the background color of the screen is configured to be displayed in five different colors. Furthermore, five levels of colors are displayed at one end of the screen in a scale format, and background colors matching the scale are connected and displayed in a tab shape.

  The blood glucose meter 101 of the present embodiment displays the measured blood glucose level or the past blood glucose level as a numerical value in the measurement mode and the content mode, and also evaluates the blood glucose level in five levels and displays a face mark corresponding to the evaluation result. The image is displayed on the screen by the liquid crystal display 103. Note that the background color of the screen is displayed in five different colors. The color classification and the face mark can be switched by setting.

  The blood glucose meter 101 of the present embodiment realizes multiple functions while keeping the operation buttons 104 to a minimum number by assigning different functions to the three operation buttons 104 in each of the measurement mode, the content mode, and the setting mode. .

[appearance]
With reference to FIGS. 1A, 1B, and 1C again, the appearance of the blood glucose meter 101 will be described.
The blood glucose meter 101 includes a liquid crystal display 103 capable of color display on the surface of a housing 102, and an operation button 104 including a well-known membrane switch or a touch panel button at the right end of the liquid crystal display 103.

The operation button 104 is provided outside the liquid crystal display 103 and includes an upper button 105, a middle button 106, and a lower button 107.
The upper button 105 is a button for moving the cursor displayed on the liquid crystal display 103 upward, and the lower button 107 is a button for moving the cursor downward. The middle button 106 is a button for instructing “execution”, “decision”, and the like.
The upper button 105 functions as a “post-meal button” when pressed briefly in the measurement mode, and records a post-meal flag (to be described later) in a corresponding record of the blood glucose level table 306.
The middle button 106 has a power-on or power-off function when pressed for a long time.
The lower button 107 has a function of entering a setting mode in which various setting values of the blood glucose meter 101 are changed when pressed down.

On one short side of the housing 102 of the blood glucose meter 101, an optical measurement unit 109 protected by a removable cap 108 is provided. A protrusion (not shown) is provided on the inside of the cap 108, and this protrusion engages with a recess 110 provided in the casing 102, so that the micro switch 210 (see FIG. 2) built in the casing 102 is turned off. Is done.
The blood glucose meter 101 that operates with a battery (not shown) is a sleep mode that operates with power saving in a non-operating state.
When the middle button 106 is pressed and held for the blood glucose meter 101 in the sleep mode, the liquid crystal display 103 displays a predetermined menu screen and shifts to the content mode.
When the cap 108 is removed and the microswitch 210 is turned on with respect to the blood glucose meter 101 in the sleep mode, the liquid crystal display 103 displays a predetermined guidance screen and shifts to the measurement mode.
When the lower button 107 is pressed and held on the blood glucose meter 101 in the sleep mode, the liquid crystal display 103 displays a predetermined menu screen and shifts to the setting mode.
Hereinafter, the sleep mode state is referred to as a “power-off state”, and the content mode, measurement mode, and setting mode states are collectively referred to as a “power-on state”.
As shown in FIG. 1B, in the case of shifting to the measurement mode by removing the cap 108, an illustration of chip mounting guidance is displayed on the liquid crystal display 103 in order to immediately measure the blood glucose level.

[hardware]
FIG. 2 is a block diagram showing a hardware configuration of the blood glucose meter 101.
The blood glucose meter 101 includes a well-known CPU 201, RAM 202, EEPROM 203, a real time clock (hereinafter abbreviated as “RTC”) 204 that outputs time and date information, a display unit 205 that is a liquid crystal display 103, and an operation unit that is operation buttons 104. A well-known microcomputer 206 is connected to the bus 207.

Further, a D / A converter 208 and an A / D converter 209, a micro switch 210, a buzzer 211, and a power control unit 212 are connected to the bus 207.
A driver 213 is connected to the D / A converter 208, and an LED 214 is further connected to the driver 213. Since the LED 214 needs to irradiate the test paper 305 in the measurement chip with light having an appropriate intensity, the LED 214 is controlled to emit light based on intensity data stored in advance in an EEPROM 203 described later.

A photodiode 215 is connected to the A / D converter 209.
The photodiode 215 receives the light of the LED 214 reflected by the test paper 305 (see FIG. 3) and generates a current corresponding to the intensity of the light. This current is converted into numerical data by the A / D converter 209. The numerical data is recorded in a predetermined area of the RAM 202 and the EEPROM 203 through a predetermined calculation process.
The LED 214 and the photodiode 215 are housed inside the optical measurement unit 109.

The RTC 204 is an IC that provides a well-known date / time data output function.
The blood glucose meter 101 of this embodiment records the date and time information at the time of measuring the blood glucose level together with the blood glucose level in the blood glucose level table 306 (see FIG. 3).

Various screens are displayed on the display unit 205 by programs stored in the EEPROM 203 and executed by the CPU 201. Details of the display screen will be described later.
The buzzer 211 is mainly used for notifying the operator of the completion of measurement in blood glucose level measurement, an alarm notification sound, which will be described later, or an error message.

  A power control unit 212 connected to the battery 216 controls the power supply of the entire blood glucose meter 101. Since the blood glucose meter 101 includes the RTC 204, the RTC 204 needs to operate constantly regardless of the power-on state or the power-off state. Even in the power-off state, that is, in the power save mode, the blood glucose meter 101 needs to detect a change in the state of the operation unit 206 and the micro switch 210. Therefore, the power supply control unit 212 is a device that only needs to operate in the power-on state, such as the display unit 205, the D / A converter 208, the driver 213, and the A / D converter 209 in the power save mode. In contrast, the power supply is stopped. The power supply control unit 212 lowers the oscillation frequency of a system clock (not shown) that operates the CPU 201 in the power save mode.

[Function configuration]
FIG. 3 is a block diagram showing functions of software of the blood glucose meter 101.
As described above, the blood glucose meter 101 is an electronic device mainly composed of a known microcomputer. The microcomputer reads a program (not shown) stored in the EEPROM 203 and configures a functional block shown in FIG.
The blood glucose level measurement unit 301 detects a change in the optical reflectance of the test paper 305 that changes color due to the blood 304 of the measurement subject, and measures the blood glucose level. The blood glucose level measurement unit 301 includes a D / A converter 208, an A / D converter 209, a blood glucose level calculation unit 302, and a measurement timer 303.
The basic blood glucose measurement mechanism of the blood glucose meter 101 is the same as that of the prior art. Hereinafter, a mechanism for measuring a blood glucose level will be briefly described.
A measurement chip (not shown) is attached to the optical measurement unit 109, and the blood 304 of the measurement subject is sucked into the measurement chip. This measurement chip contains a test paper 305 made of a porous film such as polyethersulfone. When the blood 304 sucked into the measurement chip reaches the test paper 305, it reacts with the reagent contained in the test paper 305 and develops a color. Next, light emitted from the LED 214 which is a light emitting element is applied to the test paper 305, and reflected light from the test paper 305 is received by a photodiode 215 which is a light receiving element. Then, after a predetermined reaction time has elapsed, the analog received light intensity signal obtained from the photodiode 215 is converted into a digital value by the A / D converter 209, and then this digital value is converted into a blood glucose level.
Note that the blood glucose level measurement mechanism is not limited to the optical measurement method using a coloring reagent, and a mechanism that can be conventionally used for blood glucose measurement, such as an electrochemical sensor method, can be employed.

The measurement timer 303 is a timer for measuring a predetermined reaction time from the time when the blood 304 is sucked into the test paper 305. In the case of the blood glucose meter 101 of this embodiment, 9 seconds are counted as an example.
The blood glucose level calculation unit 302 performs a predetermined calculation process based on the data indicating the intensity of the reflected light obtained from the photodiode 215 through the A / D converter 209 when the measurement timer 303 times the reaction time. And calculate the blood glucose level.

The RTC 204 outputs date / time information. The RTC 204 outputs accurate date and time information by supplying power even when the power is off.
The blood glucose level table 306 is a table in which the measurement date and time, the measured blood glucose level, and an after-meal flag to be described later are recorded. The blood sugar level table 306 is provided in a nonvolatile storage such as the EEPROM 203.
The operation unit 206 is the operation button 104 described above. The display unit 205 is the liquid crystal display 103 described above.
The input / output control unit 307 additionally records the blood glucose level data obtained from the blood glucose level measurement unit 301 and the measurement date and time obtained from the RTC 204 in the blood glucose level table 306. Further, the measured blood sugar level is displayed on the display unit 205, and various data processing is performed in accordance with the operation of the operation unit 206.

  A micro switch 210 is also connected to the input / output control unit 307. One end of the micro switch 210 is pulled up by a resistor R312 and the input / output control unit 307 detects a change in the potential of the micro switch 210, so that the cap 108 is attached to the housing 102 of the blood glucose meter 101. Or it is detected whether it has been removed.

  Further, an operation timer 308 is provided in the input / output control unit 307. The operation timer 308 is reset by a change in the state of the operation unit 206, the micro switch 210, and the blood glucose level measurement unit 301, and measures, for example, a maximum of 2 minutes. When the input / output control unit 307 detects that the operation timer 308 has counted 2 minutes, the input / output control unit 307 determines that a timeout has occurred and shifts to the power save mode.

  When the content mode menu screen is displayed, when the up button 105 is pressed for a short time, the input / output control unit 307 acquires the current date and time information from the RTC 204 and sounds the buzzer 211 two hours later (alarms the alarm). . At this time, the alarm time memory 309 stores the alarm sounding time. The alarm time memory 309 is provided in the EEPROM 203 which is a non-volatile storage because it is necessary to continuously store the alarm ringing time even in the power save mode.

The post-meal flag memory 310 is a memory area provided in the EEPROM 203, which is a non-volatile storage, that stores the state of the post-meal flag. The state of the after-meal flag stored in the after-meal flag memory 310 is changed by operating the upper button 105 in the measurement mode, and is changed within one hour after the alarm is sounded and in other time zones.
The various setting information memory 311 is a memory area provided in the EEPROM 203 that is a nonvolatile storage, and stores various setting information of the blood glucose meter 101. The various setting information memory 311 includes color settings and face display settings of the display unit 205.
Note that the alarm time memory 309, the post-meal flag memory 310, and the various setting information memories 311 may be provided in a RAM 202 (battery-backed memory) in which stored contents are backed up by a battery.

  The input / output control unit 307 detects a state change of the operation unit 206 and the micro switch 210 and realizes a function corresponding to the state change. These functions will be described in detail based on the flowcharts shown in FIG.

FIG. 4 is a schematic diagram illustrating an example of a field configuration and a record of the blood sugar level table 306.
In the date / time field, date / time information at the time of measuring the blood glucose level is stored.
The measured blood glucose level is stored in the blood glucose level field.
The post-meal flag field stores a post-meal flag indicating that the blood glucose level to be measured is a post-meal blood glucose level by pressing the upper button 105 shortly when measuring the blood glucose level.

In the blood glucose level table 306, records for recording blood glucose levels are recorded in chronological order. At the end of the blood sugar level table 306, a label area different from the record of the blood sugar level table 306 is provided. This label area stores information indicating “monthly average in the evening”, “monthly average in the daytime”, and “monthly average in the morning”.
When the memory value display function is executed in the content mode to be described later, the record of the blood sugar level table 306 pointed to by the pointer 401 provided in the RAM 202 is displayed on the display unit 205, and when the pointer 401 points to the label area, the blood sugar level Is displayed on the display unit 205.

[State transition]
Next, a rough change in the state of the blood glucose meter 101 will be described with reference to the state transition diagrams of FIGS.
First, with reference to FIG. 5, the change in the rough state of the blood glucose meter 101 will be described.
FIG. 5 is a state transition diagram showing a rough change in the state of the blood glucose meter 101.
The initial state of the blood glucose meter 101 is the power save mode. In this power save mode, the cap 108 closed power supply OFF (P501), which is a power save mode when the cap 108 is attached, and the cap 108 open power supply OFF (P502), which is a power save mode when the cap 108 is removed. There are two types.

If the cap 108 is removed from the state where the cap 108 is closed (P501), the measurement mode (P503) is entered.
When the cap 108 is attached from the measurement mode (P503), the cap 108 is turned off (P501).
If no operation is performed from the state of the measurement mode (P503) and the device is left for a predetermined time (for example, 2 minutes) to reach a time-out or if the middle button 106 is pressed for a long time, the cap 108 opens power supply OFF (P502).
When the middle button 106 is pressed for a long time from the state where the cap 108 is open (P502), the measurement mode (P503) is entered.

When the middle button 106 is pressed for a long time from the state where the cap 108 closed power supply is OFF (P501), the mode shifts to the cap 108 closed content mode (P505).
When the cap 108 is removed from the cap 108 closed content mode (P505) state, the measurement mode (P503) is entered.
If no operation is performed from the cap 108 closed content mode (P505) and a timeout is reached for a predetermined time or if the middle button 106 is pressed for a long time, the cap 108 closed power OFF (P501) is entered.

When the operation button 104 is operated to shift from the measurement mode (P503) to the content mode, the cap 108 opened content mode (P504) is entered.
When the cap 108 is attached from the cap 108 open content mode (P504), the cap 108 closed power supply OFF (P501) is entered.
If no operation is performed from the state of the cap 108 open content mode (P504) and a timeout is reached for a predetermined time or if the middle button 106 is pressed for a long time, the cap 108 open power OFF (P502) is entered.

When the lower button 107 is pressed for a long time from the cap 108 closed power OFF (P501) state, the cap 108 closed setting mode (P506) is entered.
If no operation is performed from the state of the cap 108 closed setting mode (P506) and a time-out is reached for a predetermined time or if the middle button 106 is pressed for a long time, the cap 108 closed power OFF (P501) is entered.
When the cap 108 is removed from the cap 108 closed setting mode (P506), the cap 108 open setting mode (P507) is entered.

When the lower button 107 is pressed for a long time from the state where the cap 108 is open (P502), the mode shifts to the cap 108 open setting mode (P507).
If no operation is performed from the state of the cap 108 open setting mode (P507) for a predetermined time and a time-out occurs, or if the middle button 106 is pressed for a long time, the process proceeds to cap 108 open power OFF (P502).
When the cap 108 is attached from the cap 108 open setting mode (P507), the cap 108 closed power supply OFF (P501) is entered.

When the operation of “removing the cap 108” is performed from the cap 108 closed power supply OFF (P501) state and the cap 108 closed content mode (P505) state, the blood glucose meter 101 shifts to the measurement mode (P503). That is, the operation of removing the cap 108 is an instruction to immediately turn on the power and at the same time, an instruction to start blood sugar level measurement.
When the operation of “attach cap 108” is performed from the state of the measurement mode (P503), the state of the cap 108 open content mode (P504), and the state of the cap 108 open setting mode (P507), the blood glucose meter 101 Transition to closed power supply OFF (P501). That is, the operation of attaching the cap 108 is an instruction to immediately turn off the power.

FIG. 6 is a state transition diagram showing changes starting from a state in which the blood glucose meter 101 sounds an alarm. For simplicity of explanation, the cap 108 is limited to a state where the cap 108 is attached when the alarm is sounded.
When the cap 108 is removed from the alarm ringing (P601) state, the measurement mode (P602) is entered.
If no operation is performed from the alarm ringing (P601) state and a time-out is reached after a predetermined time, the cap 108 is turned off (P603).
When the cap 108 is removed from the state where the cap 108 closed power supply is OFF (P603), the display shifts to an alarm stop elapsed time display (P604) in which the elapsed time after the alarm stop is displayed on the screen.
When the middle button 106 is pressed for a short time from the alarm stop elapsed time display (P604) state, the measurement mode (P602) is entered.

When the middle button 106 is pressed for a short time from the alarm ringing (P601) state, the display shifts to the alarm stop elapsed time display (P605).
When the middle button 106 is pressed for a long time from the cap 108 closed power OFF (P603) state, the display shifts to an alarm stop elapsed time display (P605).
When the middle button 106 is pressed for a short time from the alarm stop elapsed time display (P605) state, the content mode (P606) is entered.
When the cap 108 is removed from the content mode (P606) state, the measurement mode (P602) is entered.

One of the features of the blood glucose meter 101 of this embodiment is an after meal alarm. Since the time during which a blood glucose level after a meal can be measured is limited, an alarm is set in advance at a time that is considered to be after a meal. The post-meal alarm sounds the alarm when the set time is reached, and also displays the elapsed time on the liquid crystal display 103. By displaying the elapsed time on the liquid crystal display 103, the patient can determine whether or not it is a time suitable for blood glucose level measurement after a meal.
In addition, since the postprandial alarm is sounded and the postprandial flag is set to logic “true”, it is not necessary to operate the upper button 105 to add the postprandial flag when measuring the blood glucose level.

[Flow of operation]
FIG. 7 is a flowchart showing a rough operation flow of the blood glucose meter 101.
When the process is started by attaching a battery or the like (S701), the input / output control unit 307 first controls the power supply control unit 212 to set the operating state of the blood glucose meter 101 to the power save mode (S702).
Next, the input / output control unit 307 checks the states of the operation button 104, the micro switch 210, and the RTC 204 in the power save mode (S703).

  If the middle button 106 has been pressed for a short time (YES in S704), the input / output control unit 307 sets the operation state of the blood glucose meter 101 to the content mode and performs the content mode processing (S705). When the content mode process ends, the input / output control unit 307 ends the series of processes (S706). Then, the process starts again from step S701. In step S702, the blood glucose meter 101 sets its operation state to the power save mode.

  In step S704, if the middle button 106 has not been pressed for a short time (NO in S704), the input / output control unit 307 next checks the state of the microswitch 210. As a result, if the cap 108 is removed (YES in S707), the input / output control unit 307 sets the operation state of the blood glucose meter 101 to the measurement mode and performs the measurement mode process (S708). When the measurement mode process ends, the input / output control unit 307 ends the series of processes (S706). Then, the process starts again from step S701. In step S702, the blood glucose meter 101 sets its operation state to the power save mode.

  In step S707, if the cap 108 has not been removed (NO in S707), the input / output control unit 307 next checks the state of the lower button 107. As a result, if the down button 107 has been pressed for a long time (YES in S709), the input / output control unit 307 sets the operation state of the blood glucose meter 101 to the setting mode, and performs processing in the setting mode (S710). When the setting mode processing ends, the input / output control unit 307 ends the series of processing (S706). Then, the process starts again from step S701. In step S702, the blood glucose meter 101 sets its operation state to the power save mode.

If the down button 107 has not been pressed for a long time in step S709 (NO in S709), the input / output control unit 307 next checks the state of the RTC 204. As a result, if the current time reaches the alarm setting time (YES in S711), the input / output control unit 307 performs an alarm ringing process (S712). When the alarm ringing process ends, the input / output control unit 307 ends the series of processes (S706). Then, the process starts again from step S701. In step S702, the blood glucose meter 101 sets its operation state to the power save mode.
In step S711, if the current time has not reached the alarm setting time (NO in S711), the input / output control unit 307 repeats the processing from step S703 again, and in the power save mode, the operation button 104 and the micro switch 210 are repeated. Then, the state of the RTC 204 is checked (S703).

[Content mode]
FIG. 8 is a flowchart showing the flow of the content mode operation of the blood glucose meter 101. The process corresponds to step S705 in FIG. 7 and is also executed from step S1513 in FIG. 15, step S2029 in FIG. 20, and step S2107 in FIG.
When the process is started (S801), the input / output control unit 307 first executes an initial screen display process (S802).
Next, the input / output control unit 307 checks the state of the operation button 104 and the micro switch 210 (S803). As a result, if the upper button 105 is pressed for a short time (YES in S804), the input / output control unit 307 performs timer setting change processing (S805). When the timer setting change process is completed, the input / output control unit 307 checks the state of the operation button 104 and the micro switch 210 again (S803).

  In step S804, if the upper button 105 has not been pressed for a short time (NO in S804), the input / output control unit 307 next checks the state of the middle button 106. As a result, if the middle button 106 is pressed for a short time (YES in S806), the input / output control unit 307 performs graph display processing (S807). When the graph display process ends, the input / output control unit 307 checks the state of the operation button 104 and the micro switch 210 again (S803).

  In step S806, if the middle button 106 has not been pressed for a short time (NO in S806), the input / output control unit 307 next checks the state of the lower button 107. As a result, if the down button 107 is pressed for a short time (YES in S808), the input / output control unit 307 performs a memory content display process (S809). When the memory content display process is completed, the input / output control unit 307 checks the state of the operation button 104 and the micro switch 210 again (S803).

  In step S808, if the down button 107 has not been pressed for a short time (NO in S806), the input / output control unit 307 next performs content mode exception processing (S809). When the content mode exception process ends, the input / output control unit 307 checks the state of the operation button 104 and the micro switch 210 again (S803).

[Content mode: Initial screen display processing]
FIG. 9 is a flowchart showing the operation flow of the initial screen display process in the content mode of the blood glucose meter 101. This corresponds to step S802 in FIG.
When the process is started (S901), the input / output control unit 307 first obtains the current date / time information from the RTC 204 and looks at the alarm ringing time stored in the alarm time memory 309. Whether the alarm ringing time is within 2 hours or not. It is confirmed whether or not the post-meal alarm has not been sounded yet (S902). If it is within 2 hours until the alarm ringing time (YES in S902), the input / output control unit 307 displays the remaining time of the postprandial alarm on the display unit 205 (S903), and ends the series of processing (S904).

In step S902, if it is not within 2 hours until the alarm ringing time (NO in S902), then the input / output control unit 307 determines whether it is within 1 hour after the alarm ringing time, that is, after the postprandial alarm rings, It is confirmed whether or not the time has passed (S905). If it is within one hour after the alarm ringing time (YES in S905), the input / output control unit 307 displays the after-meal alarm excess time on the display unit 205 (S906), and then the input / output control unit 307 includes the operation button 104. The state of the micro switch 210 is checked (S907). As a result, if the middle button 106 is pressed for a short time (YES in S908), the input / output control unit 307 displays the standard menu screen for the content mode on the display unit 205 (S909), and the series of processing ends. (S904).
In step S908, if the middle button 106 has not been pressed for a short time (NO in S908), the input / output control unit 307 executes an exception process in the content mode (S910), and the state of the operation button 104 and the micro switch 210 again. Is checked (S907).

[Content mode: Exception handling]
FIG. 10 is a flowchart showing a flow of exception processing operations in the content mode of the blood glucose meter 101. This corresponds to step S810 in FIG. 8 and step S910 in FIG.
When the process is started (S1001), the input / output control unit 307 confirms whether or not the middle button 106 is pressed long (S1002). If the middle button 106 has been pressed for a long time (YES in S1002), the input / output control unit 307 ends the content mode processing (S1003). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  If it is determined in step S1002 that the middle button 106 has not been pressed for a long time (NO in S1002), the input / output control unit 307 next checks the state of the microswitch 210 to confirm whether the cap 108 has been attached (step S1002). S1004). If the cap 108 is attached (YES in S1004), the input / output control unit 307 ends the content mode processing (S1003). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  In step S1004, if the cap 108 is not attached (NO in S1004), the input / output control unit 307 next looks at the operation timer 308 to confirm whether or not the operation timer 308 has timed out (S1005). . If time-out has been reached (YES in S1005), the input / output control unit 307 ends the content mode processing (S1003). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  In step S1005, if the time-out has not been reached (NO in S1005), the input / output control unit 307 next checks the state of the microswitch 210 and confirms whether the cap 108 has been removed (S1006). If the cap 108 is removed (YES in S1006), the input / output control unit 307 shifts the process from the content mode process to the measurement mode (S1007). Thereby, the blood glucose meter 101 shifts to the measurement mode (step S708 in FIG. 7).

If the cap 108 has not been removed in step S1006 (NO in S1006), the input / output control unit 307 next obtains the current date and time information from the RTC 204 and looks at the alarm ringing time stored in the alarm time memory 309. Then, it is confirmed whether or not the current time has reached the alarm ringing time (S1008).
If the alarm time is reached (YES in S1008), the input / output control unit 307 shifts the processing from the content mode processing to the alarm ringing processing (S1009). Thereby, the blood glucose meter 101 shifts to an alarm ringing process (step S712 in FIG. 7).
In step S1008, if it is not the alarm time (NO in S1008), the input / output control unit 307 ends the exception processing in the content mode (S1010).

[Content mode: Memory content display processing]
FIG. 11 is a flowchart showing the flow of the operation of the memory content display process in the content mode of the blood glucose meter 101. This corresponds to step S809 in FIG.
When the process is started (S1101), the input / output control unit 307 checks whether or not the pointer 401 has been initialized (S1102). If the pointer 401 has not been initialized (YES in S1102), the input / output control unit 307 initializes the pointer 401 (S1103).

In both cases where the pointer 401 is initialized in step S1103 or the pointer 401 is initialized in step S1102 (NO in S1102), the input / output control unit 307 next looks at the contents of the pointer 401. Then, it is confirmed whether or not the pointer 401 points to the blood sugar level record in the blood sugar level table 306 (S1104). If the blood glucose level record is pointed (YES in S1104), the input / output control unit 307 executes a memory value display process for displaying the content of the blood glucose level record (S1105).
In step S1104, if the blood glucose level record is not pointed (NO in S1104), the input / output control unit 307 displays the average value of the blood glucose level in the most recent month according to the average value display instruction pointed to by the pointer 401. Display processing is executed (S1106).

In both the memory value display process in step S1105 and the average value display process in step S1106, after executing these processes, the input / output control unit 307 next changes the states of the operation button 104, the micro switch 210, and the RTC 204. Check (S1107).
First, the input / output control unit 307 confirms whether or not the upper button 105 is pressed for a short time (S1108). If the upper button 105 has been pressed for a short time (YES in S1108), the input / output control unit 307 decrements the value of the pointer 401 by 1 (S1109) and repeats the processing from step S1104 again.

  If the up button 105 is not short-pressed in step S1108 (NO in S1108), the input / output control unit 307 next checks whether the down button 107 is short-pressed (S1110). If the down button 107 is pressed for a short time (YES in S1110), the input / output control unit 307 increments the value of the pointer 401 by 1 (S1111) and repeats the processing from step S1104 again.

If the lower button 107 is not short-pressed in step S1110 (NO in S1110), the input / output control unit 307 next checks whether the middle button 106 is short-pressed (S1112). If the middle button 106 has been pressed for a short time (YES in S1112), the input / output control unit 307 ends the memory content display processing in this content mode (S1113).
If the middle button 106 has not been pressed for a short time in step S1112 (NO in S1112), the input / output control unit 307 executes an exception process in the content mode (S1114), again the operation button 104, the micro switch 210, and the RTC 204. Is checked (S1107).

[Content mode: Memory value display processing]
FIG. 12 is a flowchart showing the operation flow of the memory value display process in the content mode of the blood glucose meter 101. This corresponds to step S1105 in FIG.
When the process is started (S1201), the input / output control unit 307 confirms whether or not the record indicated by the pointer 401 is the first record in the blood glucose level table 306 (S1202). If the record pointed to by the pointer 401 is the first record in the blood glucose level table 306 (YES in S1202), the input / output control unit 307 displays the button layout for the first record on the display unit 205 (S1203). Then, the blood glucose level of the record pointed to by the pointer 401 is displayed on the display unit 205 (S1204), and the memory value display process is terminated (S1205).

  In step S1202, if the record pointed to by the pointer 401 is not the first record in the blood glucose level table 306 (NO in S1202), the input / output control unit 307 next sets the record pointed to by the pointer 401 as the last record in the blood glucose level table 306. It is confirmed whether or not (S1206). If the record pointed to by the pointer 401 is the last record in the blood glucose level table 306 (YES in S1206), the input / output control unit 307 displays the button layout for the last record on the display unit 205 (S1207). Then, the blood glucose level of the record pointed to by the pointer 401 is displayed on the display unit 205 (S1204), and the memory value display process is terminated (S1205).

  In step S1206, if the record pointed to by the pointer 401 is not the last record in the blood glucose level table 306 (NO in S1206), the input / output control unit 307 displays a button layout for a normal record on the display unit 205 (S1208). ). Then, the blood glucose level of the record pointed to by the pointer 401 is displayed on the display unit 205 (S1204), and the memory value display process is terminated (S1205).

[Content mode: Average value display processing]
FIG. 13 is a flowchart showing the operation flow of the average value display process in the content mode of the blood glucose meter 101. This corresponds to step S1106 in FIG.
When the process is started (S1301), the input / output control unit 307 determines whether or not the label indicated by the pointer 401 is an instruction to display an average value of morning blood glucose levels among the blood glucose levels recorded in the blood glucose level table 306. Is confirmed (S1302). If the label indicated by the pointer 401 is an instruction to display the average value of morning blood glucose level (YES in S1302), the input / output control unit 307 displays the average value of morning blood glucose level on the display unit 205 (S1303). . Then, the average value display process ends (S1304).

  In step S1302, if the label pointed to by the pointer 401 is not an instruction to display the average value of morning blood glucose level (NO in S1302), the input / output control unit 307 next displays the label pointed to by the pointer 401 in the blood glucose level table 306. It is confirmed whether or not it is an instruction to display the average value of the blood glucose level during the day among the recorded blood glucose levels (S1305). If the label indicated by the pointer 401 is an instruction to display the average value of the daytime blood glucose level (YES in S1305), the input / output control unit 307 displays the average value of the daytime blood glucose level on the display unit 205 (S1306). . Then, the average value display process ends (S1304).

  In step S1305, if the label indicated by the pointer 401 is not an instruction to display the average value of the daytime blood glucose level (NO in step S1305), the input / output control unit 307 displays the average value of the evening blood glucose level on the display unit 205. (S1307). Then, the average value display process ends (S1304).

[Content mode: Memory content display processing and average value display processing display screen]
14A, B, C, D, E, and F are schematic diagrams illustrating changes in the display screen in the memory content display processing in the content mode.
After the menu screen is displayed in the content mode (FIG. 8) (step S903 or S909 in FIG. 8), the down button 107 is pressed for a short time (step S808 in FIG. 8), and the memory content display process is selected (FIG. 8). In step S809), the input / output control unit 307 displays the contents pointed to by the pointer 401 on the display unit 205.
On the right side of the screen shown in FIGS. 14A, B, C, D, E, and F, guidance regarding the function of the operation button 104 is displayed.
If the pointer 401 points to the first record in the blood glucose level table 306 (step S1202 in FIG. 12), the input / output control unit 307 displays the screen shown in FIG. 14A on the display unit 205 (step S1203 in FIG. 12). And S1204). On the right side of the screen shown in FIG. 14A, a guidance P1401 (character string notation of “average”) for the operation buttons 104 is displayed, which indicates that when the lower button 107 is pressed, the screen shifts to the average value display processing screen.
If the pointer 401 points to the last record in the blood glucose level table 306 (step S1206 in FIG. 12), the input / output control unit 307 displays the screen shown in FIG. 14C on the display unit 205 (step S1207 in FIG. 12). And S1204). On the right side of the screen shown in FIG. 14C, a guide P1402 (character string notation of “average”) of the operation buttons 104 is displayed, which indicates that when the upper button 105 is pressed, the screen shifts to the average value display processing screen.
If the pointer 401 points to a record other than the first or last record in the blood glucose level table 306, the input / output control unit 307 displays the screen shown in FIG. 14B on the display unit 205 (steps S1208 and S1204 in FIG. 12).

When the upper button 105 is further pressed from the screen shown in FIG. 14C, the pointer 401 points to a label indicating “average blood glucose level in the morning” (step S1302 in FIG. 13). Therefore, the input / output control unit 307 displays the screen shown in FIG. 14F on the display unit 205 (step S1303 in FIG. 13).
When the upper button 105 is further pressed from the screen shown in FIG. 14F, the pointer 401 points to a label indicating “average blood glucose level during the day” (step S1305 in FIG. 13). Therefore, the input / output control unit 307 displays the screen shown in FIG. 14E on the display unit 205 (step S1306 in FIG. 13).
When the upper button 105 is further pressed from the screen shown in FIG. 14E or the lower button 107 is further pressed from the screen shown in FIG. 14A, the pointer 401 points to a label indicating “average blood glucose level in the evening”. Therefore, the input / output control unit 307 displays the screen illustrated in FIG. 14F on the display unit 205 (step S1307 in FIG. 13).
As is clear from the above, the memory content display process and the average value display process are seamlessly performed simply by operating the upper button 105 and the lower button 107.

[Alarm ring processing]
FIG. 15 is a flowchart showing the flow of the alarm sounding process of the blood glucose meter 101. This corresponds to step S712 in FIG. 7 and is also executed from step S1009 in FIG.
When the process of step S712 in FIG. 7 is started (S1501), the input / output control unit 307 sounds the buzzer 211 (alarm sound) and sets the postprandial flag to logic “true” (S1502). Next, the input / output control unit 307 displays a screen indicating that the alarm is sounding on the display unit 205 (S1503). Then, the state of the operation button 104, the micro switch 210, and the RTC 204 is checked (S1504).

First, the input / output control unit 307 confirms whether or not the cap 108 has been removed (S1505). If the cap 108 is removed (YES in S1505), the input / output control unit 307 stops the alarm (S1506) and shifts to the measurement mode (S1507).
If the cap 108 has not been removed in step S1505 (NO in S1505), the input / output control unit 307 next checks whether the middle button 106 has been pressed for a short time (S1508). If the middle button 106 is pressed for a short time (YES in S1508), the input / output control unit 307 stops the alarm (S1509) and displays the time elapsed from the alarm ringing time on the display unit 205 (S1510). Then, the state of the operation button 104, the micro switch 210, and the RTC 204 is checked (S1511).

Next, the input / output control unit 307 checks whether or not the middle button 106 has been pressed for a short time (S1512). If the middle button 106 has been pressed for a short time (YES in S1512), the input / output control unit 307 shifts to the content mode (S1513).
If the middle button 106 has not been pressed for a short time in step S1512 (NO in S1512), the input / output control unit 307 executes an exception process in the content mode (S1514), again, the operation button 104, the micro switch 210, and The state of the RTC 204 is checked (S1511).

  In step S1508, if the middle button 106 has not been pressed for a short time (NO in S1508), the input / output control unit 307 executes the exception processing in the content mode (S1515), and again operates the operation button 104, the micro switch 210, and The state of the RTC 204 is checked (S1504).

[After-meal flag operation processing and operation timer 308 restart processing]
FIGS. 16A and 16B are flowcharts showing a process in which the blood glucose meter 101 is always operated in any of the content mode, the measurement mode, and the setting mode (that is, not in the power save mode) regardless of which operation mode.
FIG. 16A is a flowchart showing post-meal flag operation processing.
When the process is started (S1601), first, the input / output control unit 307 looks at the alarm time stored in the alarm time memory 309 and confirms whether or not the current time has passed one hour or more from the alarm time ( S1602).
If the current time has passed one hour or more from the alarm time (YES in S1602), the input / output control unit 307 next checks whether the postprandial flag is set to logic “true”. (S1603).
If the after-meal flag is set to logic “true” (YES in S1603), the input / output control unit 307 sets the after-meal flag to logic “false” and initializes the alarm time memory 309 (S1604). ), A series of processing ends (S1605).
It should be noted that if the current time has not passed one hour or more from the alarm time in step S1602 or the alarm time memory 309 has already been initialized (NO in S1602), and the postprandial flag is logic “false” in step S1603. "(NO in S1603), the input / output control unit 307 does nothing and ends the process (S1605).
This post-meal flag operation process is repeatedly executed in a state other than the power save mode (from S1605 to S1601).

FIG. 16B is a flowchart showing the operation timer 308 restart process.
When the process is started (S1611), the input / output control unit 307 checks the states of the operation button 104, the micro switch 210, and the blood glucose level measurement unit 301 (S1612). If the operation button 104 has been operated, the state of the micro switch 210 has changed, or the blood glucose level measurement unit 301 is executing the blood glucose level measurement process, this is true (YES in S1613). ), The input / output control unit 307 resets and restarts the operation timer 308 (S1614), and ends the series of processing (S1615).
This operation timer 308 restart process is also repeatedly executed at all times in a state other than the power save mode (from S1615 to S1611).

[After-meal alarm display screen]
17A and 17B are diagrams showing a display screen of an after-meal alarm.
FIG. 17A is a screen displayed on the liquid crystal display 103 (display unit 205) when the current time is within two hours until the alarm ringing time. It is a screen displayed in step S903 of FIG. In the screen, a message P1701 indicating that an after-meal alarm is set and a remaining time P1702 until the after-meal alarm ringing time are displayed.
FIG. 17B is a screen displayed on the liquid crystal display 103 (display unit 205) when the current time is within one hour after the alarm ringing time. It is a screen displayed in step S906 of FIG. In the screen, a message P1703 for prompting the measurement of the blood sugar level and a time P1704 that has elapsed since the post-meal alarm ringing time are displayed.
Thus, by displaying the time elapsed from the post-meal alarm ringing time, an effect of raising self-management awareness for the patient can be expected.
When the screen shown in FIG. 17B is displayed (YES in step S905 in FIG. 9), the post-meal flag is set to logic “true” (NO in step S1602 in FIG. 16). Since it is also a screen, the patient can perform smoothly after clearly recognizing the postprandial blood glucose measurement work.

[Setting mode]
FIG. 18 is a flowchart showing the flow of the operation of the blood glucose meter 101 in the setting mode. This corresponds to step S710 in FIG.
When the process is started (S1801), the input / output control unit 307 first displays a menu screen for the setting mode on the display unit 205 (S1802).
Next, the input / output control unit 307 checks the states of the operation button 104, the micro switch 210, and the operation timer 308 (S1803). As a result, if the middle button 106 has been pressed for a long time (YES in S1804), the input / output control unit 307 ends the setting mode (S1805). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  If it is determined in step S1804 that the middle button 106 has not been pressed for a long time (NO in S1804), the input / output control unit 307 next checks the state of the microswitch 210 and confirms whether the cap 108 is attached (step S1804). S1806). If the cap 108 is attached (YES in S1806), the input / output control unit 307 ends the setting mode process (S1805). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  In step S1806, if the cap 108 is not attached (NO in S1806), the input / output control unit 307 next checks the state of the operation timer 308 to confirm whether or not a timeout has been reached (S1807). If the time-out has been reached (YES in S1807), the input / output control unit 307 ends the setting mode processing (S1805). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  If the operation timer 308 has not reached the time-out in step S1807 (NO in S1807), the input / output control unit 307 executes various setting processes according to the operation information output from the operation unit 206 (S1808), and step S1802 is performed again. Repeat the process.

[Measurement mode]
19 and 20 are flowcharts showing the flow of operation of the blood glucose meter 101 in the measurement mode. This corresponds to step S708 in FIG. 7 and is also executed from step S1007 in FIG.
When the process of step S708 in FIG. 7 is started (S1901), the input / output control unit 307 executes a button area display process for displaying a button area adjacent to the operation button 104 in the screen initially displayed on the display unit 205. (S1902). Next, a tip mounting guidance screen for guiding the patient to mount the tip on the blood glucose meter 101, which is the first stage of the blood glucose level measurement operation, is displayed (S1903).

  Next, the input / output control unit 307 checks the states of the operation button 104, the micro switch 210, the operation timer 308, and the photodiode 215 (S1904). As a result, if it is not detected that the chip is normally attached to the blood glucose meter 101 (NO in S1905), the input / output control unit 307 executes the measurement mode exception process (S1906), and step S1902 again. Repeat the process.

If it is detected in step S1905 that the chip is normally attached to the blood glucose meter 101 (YES in S1905), the input / output control unit 307 uses the blood 304 as the next stage in the blood glucose level measurement work. The process moves to spotting.
First, similarly to step S1902, button area display processing is executed (S1907). Next, a blood 304 spotting guidance screen for guiding the patient to spot the blood 304 on the chip, which is the next stage of the blood sugar level measurement operation, is displayed (S1908).

  Next, the input / output control unit 307 checks the states of the operation button 104, the micro switch 210, the operation timer 308, and the photodiode 215 (S1909). As a result, if it is not detected that the blood 304 has been normally deposited on the chip (NO in S1910), the input / output control unit 307 executes an exception process in the measurement mode (S1911), and step S1907 again. Repeat the process.

If it is detected in step S1910 that blood 304 has been normally spotted on the chip (YES in S1910), input / output control unit 307 measures the blood glucose level, which is the next stage in the blood glucose level measurement operation. Move on to processing.
First, the input / output control unit 307 activates the measurement timer 303 for measuring the blood glucose level (S1912). For example, the measurement timer 303 measures 9 seconds. Thereafter, the process continues to FIG. 20 (S1913).

The continuation of the flowchart will be described with reference to FIG.
Next, the input / output control unit 307 executes button area display processing in the same manner as in steps S1902 and S1907 (S2014). Next, the patient is instructed to wait until the blood glucose measurement operation is completed, that is, the measurement timer 303 finishes measuring the measurement time (9 seconds in this embodiment), which is the next stage of the blood glucose measurement operation. A display screen during measurement is displayed (S2015).

Next, the input / output control unit 307 checks the states of the operation button 104, the micro switch 210, the measurement timer 303, and the operation timer 308 (S2016). As a result, if the measurement timer 303 does not finish measuring the measurement time (NO in S2017), the input / output control unit 307 next checks whether or not the upper button 105 has been pressed for a short time (S2018).
If the upper button 105 is pressed for a short time (YES in S2018), the input / output control unit 307 sets the state of the postprandial flag to logic “true” (S2019) and repeats the processing from step S2014 again. That is, the input / output control unit 307 sets the state of the after meal flag to a logical value indicating that it is after meal.
In step S2018, if the up button 105 has not been pressed for a short time (NO in S2018), the input / output control unit 307 next checks whether the up button 105 has been pressed for a long time (S2020).
If the upper button 105 is pressed for a long time (YES in S2020), the input / output control unit 307 sets the state of the postprandial flag to logic “false” (S2021), and repeats the processing from step S2014 again. That is, the input / output control unit 307 sets the state of the after meal flag to a logical value indicating that it is before meal.
In step S2020, if the upper button 105 is not pressed long (NO in S2020), the input / output control unit 307 repeats the process from step S2014 again.

In step S2017, if the measurement timer 303 finishes measuring the measurement time (YES in S2017), the input / output control unit 307 causes the blood glucose level calculation unit 302 to calculate the blood glucose level (S2022).
Next, the input / output control unit 307 executes button area display processing in the same manner as steps S1902, S1907, and S2014 (S2023). Next, the input / output control unit 307 executes blood glucose level display processing for displaying the blood glucose level on the display unit 205 (S2024). Then, the input / output control unit 307 checks the states of the operation button 104, the micro switch 210, and the operation timer 308 (S2025).

Next, the input / output control unit 307 executes blood glucose level recording processing for recording the blood glucose level calculated in step S2022 together with the postprandial flag in the blood glucose level table 306 (S2026). Then, measurement mode exception processing is executed (S2027).
After executing the blood glucose level recording process in step S2026 and the measurement mode exception process in step S2027, the input / output control unit 307 determines whether or not the operation information obtained from the operation button 104 is an operation for shifting to the content mode. Is confirmed (S2028). If the operation is to shift to the content mode (YES in S2028), the input / output control unit 307 shifts to the content mode (S2029).
In step S2028, if the operation information obtained from the operation button 104 is not an operation for shifting to the content mode (NO in S2028), the input / output control unit 307 repeats the processing from step S2023 again.

[Measurement mode: Exception handling]
FIG. 21 is a flowchart showing a flow of an exception process operation in the measurement mode of the blood glucose meter 101. This corresponds to steps S1906 and S1911 in FIG. 19 and step S2025 in FIG.
When the process is started (S2101), the input / output control unit 307 confirms whether or not the middle button 106 has been pressed for a long time (S2102). If the middle button 106 has been pressed for a long time (YES in S2102), the input / output control unit 307 ends the measurement mode process (S2103). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  In step S2102, if the middle button 106 has not been pressed for a long time (NO in S2102), the input / output control unit 307 next checks the state of the micro switch 210 to confirm whether or not the cap 108 has been attached (step S2102). S2104). If the cap 108 is attached (YES in S2104), the input / output control unit 307 ends the measurement mode process (S2103). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  In step S2104, if the cap 108 is not attached (NO in S2104), the input / output control unit 307 next looks at the operation timer 308 to confirm whether or not the operation timer 308 has timed out (S2105). . If time-out has been reached (YES in S2105), the input / output control unit 307 ends the measurement mode process (S2103). Thereby, the blood glucose meter 101 shifts to the power save mode (step S702 in FIG. 7).

  In step S2105, if the timeout has not been reached (NO in S2105), the input / output control unit 307 confirms whether or not the operation information obtained from the operation button 104 is an operation for shifting to the content mode next (S2106). ). If the operation is to shift to the content mode (YES in S2106), the input / output control unit 307 shifts to the content mode (S2107).

In step S2106, if the operation information obtained from the operation button 104 is not an operation for shifting to the content mode (NO in S2106), the input / output control unit 307 confirms whether or not the upper button 105 has been pressed for a short time. (S2108).
If the upper button 105 is pressed for a short time (YES in S2108), the input / output control unit 307 sets the state of the postprandial flag to logic “true” (S2109). That is, the input / output control unit 307 sets the state of the after meal flag to a logical value indicating that it is after meal. Then, the input / output control unit 307 ends the exception processing in the content mode (S2110).

In step S2108, if the up button 105 has not been pressed for a short time (NO in S2108), the input / output control unit 307 next checks whether the up button 105 has been pressed for a long time (S2111).
If the upper button 105 is pressed for a long time (YES in S2111), the input / output control unit 307 sets the state of the postprandial flag to logic “false” (S2112). That is, the input / output control unit 307 sets the state of the after meal flag to a logical value indicating that it is before meal. Then, the input / output control unit 307 ends the exception processing in the content mode (S2110).
If the up button 105 has not been pressed for a long time in step S2111 (NO in S2111), the input / output control unit 307 ends the exception processing in the content mode (S2110).

[Measurement mode: blood glucose level recording process]
FIG. 22 is a flowchart showing the operation flow of the blood glucose level recording process in the measurement mode of the blood glucose meter 101. This corresponds to step S2024 in FIG.
When the process is started (S2201), the input / output control unit 307 confirms whether or not the blood sugar level calculated in step S2020 of FIG. 20 is not yet recorded in the blood sugar level table 306 (S2202). If not recorded (YES in S2202), the input / output control unit 307 records the calculated blood glucose level in the blood glucose level table 306 together with the date and time of measurement and the postprandial flag (S2203).
If the blood glucose level has already been recorded in step S2202 (NO in S2202), the input / output control unit 307 does not record the calculated blood glucose level in the blood glucose level table 306.

Next, the input / output control unit 307 determines whether or not the current logical value of the postprandial flag and the postprandial flag recorded in the blood glucose level table 306 do not match, that is, whether or not the postprandial flag has changed. Confirm (S2204). If a change is recognized in the postprandial flag (YES in S2204), the input / output control unit 307 displays the logical value of the current postprandial flag in the postprandial flag field of the record in which the current blood glucose level is recorded in the blood glucose level table 306. Is written (S2205).
If no change is found in the postprandial flag in step S2204 (NO in S2204), the input / output control unit 307 does not record the postprandial flag in the blood sugar level table 306.
Whether the post-meal flag is recorded in the blood glucose level table 306 (S2205) or not (NO in S2204), the input / output control unit 307 ends the series of processes (S2206).

[Measurement mode: Button area display processing]
FIG. 23 is a flowchart showing the operation flow of the button area display process in the measurement mode of the blood glucose meter 101. This corresponds to steps S1902 and S1907 in FIG. 19 and steps S2014 and S2023 in FIG.
When the process is started (S2301), the input / output control unit 307 checks the state of the postprandial flag and checks whether the logical value of the postprandial flag indicates “before meal” (S2302).
If the logical value of the after meal flag indicates “before meal” (YES in S2302), the input / output control unit 307 displays “after meal” in the area adjacent to the upper button 105 in the button area at the right end of the display unit 205. A character string is displayed (S2303).
If the logical value of the post-meal flag indicates “after meal” (NO in S2302), the input / output control unit 307 displays “release” in the area adjacent to the upper button 105 in the button area at the right end of the display unit 205. A character string is displayed (S2304).
In either case of steps S2303 and S2304, the series of processing is terminated thereafter (S2305).

[Content mode and measurement mode: blood glucose level display processing]
FIG. 24 is a flowchart showing the flow of the blood glucose level display process in the content mode and the measurement mode of the blood glucose meter 101. This corresponds to step S1204 in FIG. 12 and step S2022 in FIG.
When the process is started (S2401), the input / output control unit 307 looks at various setting information and checks whether or not the setting information on the screen displayed on the display unit 205 is a color setting (S2402).
If the setting information on the screen displayed on the display unit 205 is a color setting (YES in S2402), the input / output control unit 307 compares the blood glucose level to be displayed with a predetermined threshold value and performs a five-level evaluation, thereby determining the five levels. A display color based on the evaluation result is selected, and the blood glucose level is displayed on the display unit 205 (S2403).
If the setting information on the screen displayed on the display unit 205 is black and white setting (NO in S2402), the input / output control unit 307 displays the blood glucose level to be displayed on the display unit 205 on a black and white screen (S2404).
In either case of steps S2403 and S2404, the input / output control unit 307 next looks at various setting information to check whether the setting information on the screen displayed on the display unit 205 is a setting for displaying a face mark. (S2405).
If the setting information on the screen displayed on the display unit 205 is a setting for displaying a face mark (YES in S2405), the input / output control unit 307 compares the blood glucose level to be displayed with a predetermined threshold value and performs a five-step evaluation. The face mark is selected based on the result of the five-level evaluation, and the blood glucose level is displayed on the display unit 205 (S2406).
If the setting information on the screen displayed on the display unit 205 is not a setting for displaying a face mark (NO in S2405), the input / output control unit 307 does not display the face mark.
In any case of NO in steps S2406 and S2405, the input / output control unit 307 thereafter ends the series of processes (S2407).

[Measurement mode: Display screen in blood glucose level display processing]
25A and 25B are display screens displayed on the display unit 205 in the blood glucose level display process in the measurement mode of the blood glucose meter 101. More specifically, the display screen is displayed in step S2403 and step S2406 in FIG.
When the various setting information is a color setting, the blood glucose level is color-coded by five-level evaluation. The hypoglycemia is blue, the optimal blood sugar is yellow-green, then orange, then pink, and the highest blood sugar is red.
FIG. 25A is a screen displayed when the blood glucose level is in the second range from the bottom of the five-level evaluation. This display screen is a display state that is displayed in yellow-green of the optimal blood glucose and integrated with the second yellow-green portion from the bottom of the color-coded scale displayed at the left end. By integrating the color-coded scale and the background portion of the screen, a tab P2501 is formed on the display screen.
FIG. 25B is a screen displayed when the blood glucose level is in the second range from the top in the five-stage evaluation. This display screen is displayed in pink indicating that the blood sugar level is the second highest, and is integrated with the second pink part from the top of the color-coded scale displayed on the left end. This is a display state in which P2502 is formed.
In this way, by providing a tab formed by integrating the color-coded scale and the background part of the screen, it is possible to instantly and clearly recognize how much the current blood glucose level is in the five-step evaluation. .

26A, B, C, D, and E are diagrams showing variations of face marks displayed on the display unit 205 in the process of displaying blood glucose levels in the content mode and measurement mode of the blood glucose meter 101. FIG. In step S2405 of FIG. 24, when the setting information on the screen displayed on the display unit 205 is a setting for displaying a face mark (YES in S2405), the face mark is displayed on the display unit 205 according to the blood glucose level. .
The input / output control unit 307 compares the blood glucose level to be displayed with a predetermined threshold value, performs five-level evaluation, selects a face mark based on the result of the five-level evaluation, and displays the blood glucose level on the display unit 205 ( S2406).
The five-level evaluation was performed using threshold values based on the “Diabetic Practice Guidelines” edited by the Japan Diabetes Society (http://www.lifescience.jp/ebm/cms/ms/no.19/topics.pdf). The face marks shown in B, C, D, and E are displayed.

FIG. 26A is a face mark indicating a low blood glucose level. Displayed when fasting blood glucose level and blood glucose level for two hours after meal are less than 80 mg / dl (deciliter).
FIG. 26B is a face mark indicating an appropriate blood glucose level. Displayed when the fasting blood glucose level is in the range of 80 to 110 mg / dl and the blood glucose level for two hours after meal is 80 to 140 mg / dl.
FIG. 26C is a face mark indicating that the blood glucose level is slightly high. Displayed when the fasting blood glucose level is in the range of 110 mg / dl or more and less than 130 mg / dl, and the post-meal blood glucose level is 140 mg / dl or more and less than 180 mg / dl.
FIG. 26D is a face mark indicating that the blood glucose level is high. Displayed when the fasting blood glucose level is in the range of 130 mg / dl or more and less than 160 mg / dl, and the blood glucose level for 2 hours after meal is 180 mg / dl or more and less than 220 mg / dl.
FIG. 26E is a face mark indicating that the blood sugar level is too high and dangerous. Displayed when the fasting blood glucose level is in the range of 160 mg / dl or more, and the blood glucose level for two hours after meal is 220 mg / dl or more.
In this way, the face marks with different facial expressions shown in FIGS. 26A, B, C, D, and E correspond to blood glucose levels. That is, the blood glucose meter 101 of the present embodiment applies the blood glucose level to face marks with different facial expressions and displays them on the display unit 205, thereby instantly indicating how much the current blood glucose level is in a five-step evaluation. Can be clearly recognized.

[Content mode and measurement mode: Display screen]
27A, B, C, and D are diagrams showing variations of the display screen displayed on the display unit 205 in the process of displaying the blood glucose level in the content mode and the measurement mode of the blood glucose meter 101. FIG. More specifically, the display screen is displayed in step S1204 of FIG.
FIG. 27A is a display screen displayed when the various setting information is a color setting (YES in S2402) and a setting with a face mark (YES in S2405). The screen is displayed with a five-level evaluation background color P2701 and a face mark P2702 based on the five-level evaluation.
FIG. 27B is a display screen displayed when the various setting information is color setting (YES in S2402) and no face mark setting (NO in S2405). The screen is displayed with a five-level evaluation background color P2703, but no face mark based on the five-level evaluation is displayed.
FIG. 27C is a display screen displayed when the various setting information is black and white setting (YES in S2402) and setting with face mark (YES in S2405). The screen is displayed in black and white, and a face mark P2704 based on a five-step evaluation is displayed.
FIG. 27D is a display screen displayed when the various setting information is black and white setting (YES in S2402) and no face mark setting (NO in S2405). The screen is displayed in black and white, and the face mark based on the five-level evaluation is not displayed.
Thus, the mode of the screen displayed on the display unit 205 changes depending on the setting contents of various setting information.
Although FIGS. 27A, B, C, and D show variations of the display screen in the content mode, variations of the display screen in the measurement mode also exist.

  The color display designed to be easy for the patient to see becomes difficult to see depending on the combination of colors when visual impairment occurs due to complications such as diabetic retinopathy. Therefore, by providing the blood glucose meter 101 with a setting function for switching to high contrast display such as black and white display and a setting function for switching presence / absence of mark display, the display unit 205 can have an optimal blood glucose level in accordance with the progress of visual impairment. Display can be selected.

[Measurement mode post-meal button and Content mode post-meal alarm button]
28A and 28B are a display screen in the measurement mode and a display screen in the content mode.
In both FIGS. 28A and 28B, a button display area for explaining the function of the operation button 104 arranged next to the right end of the screen is provided.
In the button display area of FIG. 28A, the character string “after meal” is displayed in the area P2801 of the up button 105. The upper button 105 in the measurement mode is assigned a function as a post-meal button, and the post-meal flag is changed by pressing the upper button 105 for a short time.
In the button display area of FIG. 28B, a clock illustration is displayed in the area P2802 of the up button 105. A function for setting an after-meal alarm is assigned to the upper button 105 in the content mode, and a menu screen for setting an after-meal alarm is displayed by pressing the upper button 105 for a short time.

[Function assignment of operation buttons 104]
FIG. 29 is a table showing functions assigned to the operation buttons 104.
Up to now, the main functions assigned to the operation buttons 104 have been described in the flowcharts from FIG. 7 to FIG. The table in FIG. 29 is a table showing the correspondence between the operation buttons 104 and the functions assigned to each operation mode.

When the power is off, that is, in the power save mode, the input / output control unit 307 detects only a short press of the middle button 106 and a long press of the lower button 107.
When the middle button 106 is pressed for a short time, the input / output control unit 307 shifts to the content mode. That is, the power is turned on.
When the lower button 107 is pressed long, the input / output control unit 307 shifts to the setting mode.
Although not shown in this table, removal of the cap 108 is also detected through the microswitch 210. When the cap 108 is removed, the input / output control unit 307 shifts to the measurement mode.

In the measurement mode, the input / output control unit 307 detects only a short press and a long press of the upper button 105 and a long press of the middle button 106.
When the upper button 105 is pressed for a short time, the input / output control unit 307 sets the post-meal flag to logic “true”. That is, the after-meal setting is turned ON.
When the upper button 105 is pressed and held, the input / output control unit 307 sets the post-meal flag to logic “false”. That is, the post-meal setting is turned off.
When the middle button 106 is pressed and held, the input / output control unit 307 shifts to the power save mode. That is, the power is turned off.

In the content mode state, the input / output control unit 307 detects only the long press of the upper button 105, the short press and the long press of the middle button 106, and the short press of the lower button 107.
When the upper button 105 is pressed and held, the input / output control unit 307 activates the alarm setting function.
When the middle button 106 is pressed for a short time, the input / output control unit 307 activates the graph display function.
When the middle button 106 is pressed and held, the input / output control unit 307 shifts to the power save mode. That is, the power is turned off.
When the down button 107 is pressed for a short time, the input / output control unit 307 activates the memory display function.

In the state of the graph display function and the memory display function, the input / output control unit 307 performs short press and long press of the upper button 105, short press and long press of the middle button 106, and short press and long press of the lower button 107, that is, Detects short and long presses on all buttons.
When the up button 105 is pressed for a short time, the input / output control unit 307 moves the pointer 401 indicating the currently displayed data to the new data and displays the new data on the display unit 205.
When the upper button 105 is pressed and held, the input / output control unit 307 moves the pointer 401 indicating the currently displayed data to the new data and displays the new data on the display unit 205. In this operation, if possible, the input / output control unit 307 causes the display unit 205 to continuously display data.
When the middle button 106 is pressed for a short time, the input / output control unit 307 returns to the previous screen that called the currently executed function.
When the middle button 106 is pressed and held, the input / output control unit 307 shifts to the power save mode. That is, the power is turned off.
When the down button 107 is pressed for a short time, the input / output control unit 307 moves the pointer 401 indicating the currently displayed data to the old data and displays the old data on the display unit 205.
When the down button 107 is pressed and held, the input / output control unit 307 moves the pointer 401 indicating the currently displayed data to the old data, and displays the old data on the display unit 205. In this operation, if possible, the input / output control unit 307 causes the display unit 205 to continuously display data.

In the state of the setting mode, the input / output control unit 307 short-presses and long presses the upper button 105, short-presses and long-presses of the middle button 106, and short-presses and long-presses of the lower button 107, that is, short-presses of all buttons. Detects pressing and long pressing.
When the upper button 105 is pressed for a short time, the input / output control unit 307 increments the set value that is the current operation target (“+1”).
When the upper button 105 is pressed for a long time, the input / output control unit 307 continuously increments the setting value that is the current operation target.
When the middle button 106 is pressed for a short time, the input / output control unit 307 determines a setting value currently targeted for investigation or selects from a plurality of options.
When the middle button 106 is pressed and held, the input / output control unit 307 shifts to the power save mode. That is, the power is turned off.
When the down button 107 is pressed for a short time, the input / output control unit 307 decrements the set value currently being operated (“−1”).
When the lower button 107 is pressed and held down, the input / output control unit 307 continuously decrements the set value that is currently the operation target.

In the present embodiment, the blood glucose meter 101 is disclosed.
A cap 108 that protects the optical measurement unit 109 is provided, and a micro switch 210 that detects a state in which the cap 108 is attached to and detached from the housing 102 is provided. When the input / output control unit 307 detects that the cap 108 has been removed from the housing 102, the mode shifts from the power save mode to the measurement mode. As described above, by using the cap as a kind of the operation button 104, the blood glucose meter 101 having a clear and easy-to-understand operation system for the patient can be provided with the minimum number of operation buttons 104.

  The blood glucose meter 101 is provided with a post-meal alarm function for notifying the patient that the blood sugar level measurement time after meal has been reached. When the input / output control unit 307 detects that the current time obtained from the RTC 204 has reached the alarm ringing time stored in the alarm time memory 309, the input / output control unit 307 rings the alarm (buzzer 211) and at a predetermined time after the alarm ringing time. Until this time, the postprandial flag in the postprandial flag memory 310 is set to logic “true” and is recorded in the blood sugar level table 306 together with the blood sugar level measured by the blood sugar level measuring unit 301. Thus, by linking the postprandial alarm and the postprandial flag, the patient can more reliably perform the postprandial blood glucose level measurement operation.

  The blood glucose meter 101 is provided with three operation buttons 104, an upper button 105, a middle button 106, and a lower button 107. This upper button 105 provides a function of operating a post-meal flag that indicates whether or not the measured blood glucose level is after a meal, which is recorded in the blood glucose level table 306 in the measurement mode for measuring the blood glucose level. On the other hand, in the content mode in which the blood sugar level recorded in the blood sugar level table 306 is referred to, a function for setting a post-meal alarm that informs the patient that the blood sugar level measuring time after meal has been reached is provided. In this way, at the time of blood glucose level measurement and blood glucose level confirmation, a function related to the concept of “post-meal” is assigned to one operation button called the upper button 105, which makes it easy for the patient to remember the operation and high functionality and simplicity. It is possible to realize a blood glucose meter that balances the balance.

  The blood glucose meter 101 is provided with three operation buttons 104, an upper button 105, a middle button 106, and a lower button 107. If the lower button 107 is kept pressed in the content mode in which the blood glucose level recorded in the blood glucose level table 306 is referred to, the start end record of the blood glucose level table 306 is reached. When the lower button 107 is further pressed, the average value of morning blood glucose levels for the most recent month stored in the blood glucose level table 306 is displayed. That is, it is possible to seamlessly switch between the blood glucose level display function and the average value display function only by moving the reference record. Therefore, complicated operations such as mode switching are unnecessary, and the operation is easy for the patient to remember.

  The blood glucose level measured by the blood glucose level measuring unit 301 of the blood glucose meter 101 is compared with a plurality of threshold values, and a five-level evaluation is performed. Five colors are assigned according to the five-stage evaluation results, and the blood sugar level is displayed on the liquid crystal display 103. Furthermore, a scale of five colors is displayed on one end of the liquid crystal display 103, and a background color matching the scale is integrated and displayed in a tab shape. By performing tab-like display in this way, it is possible to determine at a glance how much the blood glucose level measured at the tab position is.

  The input / output control unit 307 controls the display state of the liquid crystal display 103 according to the color setting and the face display setting stored in the various setting information memory 311. If the color setting is made, the blood glucose level measured by the blood glucose level measuring unit 301 is compared with a plurality of threshold values, a five-level evaluation is performed, and five colors are assigned according to the evaluation result. Display blood sugar color. If the setting is to display a face mark, the face mark corresponding to the result of the five-step evaluation is displayed on the liquid crystal display 103. Thus, by giving the blood glucose level 101 a fine setting function regarding display, it is possible to realize an optimal blood glucose level display function according to the case of visual impairment or according to the preference of the patient.

  The blood glucose meter 101 is provided with three operation buttons 104, an upper button 105, a middle button 106, and a lower button 107. In the measurement mode for measuring the blood sugar level, the upper button 105 is assigned a function for operating a post-meal flag indicating whether or not the measured blood sugar level is recorded in the blood sugar level table 306. On the other hand, in the content mode for referring to the blood sugar level recorded in the blood sugar level table 306, the upper button 105 is assigned a function for setting a post-meal alarm that informs the patient that the blood sugar level measuring time after meal has been reached. It is done. In both the measurement mode and the content mode, the middle button 106 is assigned a power-off function. Thus, by assigning different functions to the few operation buttons according to the operation mode, many functions can be realized with the minimum number of operation buttons.

  The embodiment of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and other modifications may be made without departing from the gist of the present invention described in the claims. Includes application examples.

  DESCRIPTION OF SYMBOLS 101 ... Blood glucose meter, 102 ... Housing | casing, 103 ... Liquid crystal display, 104 ... Operation button, 105 ... Up button, 106 ... Middle button, 107 ... Down button, 108 ... Cap, 109 ... Optical measurement part, 201 ... CPU, 202 ... RAM, 203 ... EEPROM, 204 ... RTC, 205 ... display unit, 206 ... operation unit, 207 ... bus, 208 ... D / A converter, 209 ... A / D converter, 210 ... microswitch, 211 ... buzzer, DESCRIPTION OF SYMBOLS 212 ... Power supply control part, 213 ... Driver, 214 ... LED, 215 ... Photodiode, 216 ... Battery, 301 ... Blood sugar level measurement part, 302 ... Blood sugar level calculating part, 303 ... Measurement timer, 304 ... Blood, 305 ... Test paper 306, blood sugar level table, 307, input / output control unit, 308, operation timer, 309, alarm time memory, 310, meal Flag memory, 311 ... configuration information memory, 401 ... pointer

Claims (2)

A measurement unit to which a measurement test strip for measuring the blood glucose level of the patient is attached;
A blood glucose level measurement unit for measuring a blood glucose level of the patient by obtaining a predetermined signal from the measurement unit;
A display unit for displaying a blood glucose level measured by the blood glucose level measuring unit;
On one side of the display unit, a scale composed of a plurality of color schemes showing the result of classifying the blood glucose level with a plurality of threshold values is displayed, and the blood glucose level is compared with the plurality of threshold values and classified into a predetermined rank. And an input / output control unit that sets a background color of the display unit to one of the plurality of color schemes according to the rank, and forms a tab by integrating the scale and the background color. Blood glucose meter. The input / output control unit compares the blood glucose level with a plurality of threshold values in addition to the background color, classifies the blood glucose level into a predetermined rank, and displays a mark corresponding to the rank on the display unit.
The blood glucose meter according to claim 1.

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