TW201350086A - Glucosemeter - Google Patents

Abstract

A glucosemeter is provided. The glucosemeter reads out a glucose table during power on and/or off of the glucosemeter when the present time reaches a specific date and time. The glucose table is recorded with detected glucose values. The average of the detected glucose values from a predetermined interval already past till now is calculated. The graph based on the average is shown on a display. The patient can be specifically aware of the management of the glucosemeter of his own.

Description

Blood glucose meter

The present invention relates to a blood glucose meter that measures a blood glucose level of a patient and displays a blood glucose level on a display screen.

It is well known that diabetes is caused by abnormal insulin secretion in the pancreas or decreased sensitivity to insulin. In particular, type 1 diabetic patients whose insulin stops secreting must measure blood glucose levels before eating and take insulin according to their values.

In the past, in order to allow the patient or his family in the family to easily measure the blood sugar level, the applicant developed, manufactured, and sold a small blood glucose measuring device (hereinafter referred to as a "glucometer") for automatic measurement.

In addition, a patent application related to the applicant's blood glucose meter is shown in Patent Document 1.

Patent Document 1: Japanese Patent Laid-Open No. 2011-64596

It is well known that if there is no progress in medical technology innovations such as regenerative medicine, diabetes is a difficult condition to cure under current conditions. Diabetes patients must often manage their blood sugar levels within a reasonable range in their daily lives. In addition, you must regularly go to the hospital to report the blood glucose measurement results to the doctor and accept the students. Live guidance. At this time, the doctor reads the blood glucose level data of the patient accumulated in the blood glucose meter for several weeks to several months by the blood glucose meter held by the patient. Therefore, the blood glucose meter has a history browsing function for viewing the accumulated blood glucose level data by the built-in liquid crystal display.

The previous blood glucose meter only has the function of displaying the past blood glucose data of the patient on the liquid crystal display by the history browsing function. However, since diabetes is a chronic disease, it is important that the patient himself grasps the improvement or deterioration of the condition within a certain period of time (i.e., changes over time), thereby increasing awareness of life improvement. The blood glucose meter so far does not provide patients with information related to the progression of such medium- and long-term conditions.

The present invention has been made in view of the above circumstances, and it is an object of the invention to provide a blood glucose meter having a function of displaying a transition of a blood glucose level in a medium-and long-term period on an appropriate display screen at an appropriate timing.

In order to solve the problem, the blood glucose meter of the present invention includes a blood sugar level measuring unit that measures a blood sugar level of the patient, and a blood sugar level table including a blood sugar level column in which the blood sugar level of the patient measured by the blood sugar level measuring unit is stored, and The date and time column of the measurement date and time when the blood sugar level measuring unit measures the blood sugar level of the patient; the current time pulse, which outputs the current date and time information; the display unit displays the blood sugar value stored in the blood sugar value column; and the operation unit It gives an instruction to supply power to the display unit. Further, the blood glucose meter of the present invention further includes an input/output control unit that obtains current from the instantaneous clock after supplying power to the display unit in response to the operation of the operation unit. The date and time information, if the current date and time information matches the predetermined day and time period, the blood glucose level in the predetermined period is read from the blood glucose level table, and a graph based on the blood sugar level is displayed on the display unit.

The blood glucose meter of the present invention displays a graph indicating the transition of the blood glucose level from the current time to the predetermined period on the display screen at the start of the predetermined period of the predetermined period of time and/or immediately before the stop, so that the blood glucose can be judged at a glance Change in value.

101‧‧‧Glucometer

102‧‧‧ frame

103‧‧‧LCD display

104‧‧‧ operation button

105‧‧‧Up direction button

106‧‧‧down button

107‧‧‧Decision button

108‧‧‧ Cover

109‧‧‧Optical Measurement Department

110‧‧‧ Cover

111‧‧‧Set button

112‧‧‧ recess

201‧‧‧ Blood sugar value measurement department

202‧‧‧ blood

203, 303‧‧‧ test paper

204‧‧‧LED

205‧‧‧Photoelectric diode

206, 306‧‧‧RTC

207‧‧‧ Blood sugar value table

208‧‧‧Operation Department

209‧‧‧Display Department

210, 310‧‧‧Input and Output Control Department

211‧‧‧ Large-capacity storage

212‧‧‧Image Archive Directory

214‧‧‧Close Range Wireless Communication Department

215‧‧‧Serial interface

216‧‧‧ buzzer

217‧‧‧ micro switch

218‧‧‧Set value

220‧‧‧Battery

304‧‧‧LED

307‧‧‧ blood glucose value table

308‧‧‧Operation Department

309‧‧‧Display Department

313‧‧‧Attribute Table

402, 702‧‧‧ one month setting bar

701‧‧‧Three-month setting bar

703‧‧‧ week setting bar

704‧‧‧Time period setting bar

705‧‧‧Check the box when the power is turned on

706‧‧‧Check the box when the power is off

707‧‧‧Show checkboxes each time

708‧‧‧OK button

709‧‧‧Cancel button

1200‧‧‧ PC

1201‧‧‧CPU

1202‧‧‧ROM

1203‧‧‧RAM

1204‧‧‧D/A converter

1205‧‧‧A/D converter

1206‧‧ ‧ busbar

1207‧‧‧Volatile storage

P1001~P1005‧‧‧Face illustration

S401~S405, S501~S516, S601~S608‧‧‧ steps

1A to 1C are external views of a blood glucose meter as an example of an embodiment of the present invention, and Fig. 1A is a perspective view, Fig. 1B is a plan view, and Fig. 1C is a view of the same.

Fig. 2 is a block diagram showing the configuration of a blood glucose meter.

3 is a schematic view showing an example of a column configuration and recording of a blood glucose level table.

4 is a flow chart showing the flow of sleep processing of the blood glucose meter.

Fig. 5 is a flow chart showing the flow of main processing of the blood glucose meter.

Fig. 6 is a flowchart showing the flow of a blood sugar level evaluation display process.

7 is a view showing an example of a setting screen of a graphic display on a liquid crystal display.

8A to 8C are views showing a display example of a graphic display on a liquid crystal display.

9D is a view showing a display example of a graphic display on a liquid crystal display.

10A to 10E are diagrams each showing a display example of a face illustration of a five-stage display on a liquid crystal display.

Figure 11 is a diagram showing the field configuration and recording of the blood glucose level table in the mode of the diet button. A schematic diagram of an example.

12A and 12B are block diagrams showing the hardware configuration of a blood glucose meter and a personal computer.

The outline of the blood glucose meter of the present embodiment will be described.

As is well known, since the performance of electronic parts becomes high, various electronic parts can achieve high functions while being low in power consumption. Based on this, the inventors have considered evolving a blood glucose meter from an instrument that measures only a blood sugar level to a tool that actively provides information for improving the quality of life (QOL) of a diabetic patient.

The inventors believe that there are two kinds of information for improving the QOL of diabetic patients.

One of the information is to evaluate the results of the evaluation of the moving average of blood glucose values in the interim period in five stages.

Another information is a graph showing the state of change of the blood glucose level in the medium and long term at a fixed time of week, month, and every three months.

However, such a message presentation function is configured to be displayed according to the patient's spontaneous operation, and there is no way to simply use it.

Here, the information is forcibly displayed on the display unit immediately after the blood glucose meter is started and/or is about to stop.

[Exterior]

1A, 1B, and 1C are external views of a blood glucose meter 101 as an example of an embodiment of the present invention. FIG. 1A is a perspective view, FIG. 1B is a plan view, and FIG. 1C is a view of the cover.

As shown in FIG. 1A, the blood glucose meter 101 includes a liquid crystal display 103 that can display a color on the surface of the casing 102, and an operation button including a well-known membrane switch. The operation button 104 is provided on the upper surface and the side surface of the housing 102. That is, as shown in FIG. 1B and FIG. 1C, an upper direction button 105, a down direction button 106, and a decision button 107 are provided on the upper surface of the casing 102, and a setting button 111 is provided on the side surface of the casing 102. Further, a cover 110 including a serial interface of a well-known Micro USB (Universal Serial Bus) is provided on the side of the casing 102.

Further, the operation button 104 is a general term for the up direction button 105, the down direction button 106, the decision button 107, and the setting button 111 described above.

An upper direction button 105 for moving the cursor displayed on the liquid crystal display 103 in the upward direction, a downward direction button 106 for moving the cursor in the downward direction, and an instruction "execution", "decision", and the like are provided on the surface of the casing 102. The decision button 107 is determined. A setting button 111 for performing various settings is provided on the side of the casing 102.

The up direction button 105 has a function of turning on the power or turning off the power if it is continuously pressed for about 1.5 seconds or longer (hereinafter referred to as "long press").

The down direction button 106 has a function of displaying a blood sugar level stored in a blood glucose level table to be described later if it is long pressed.

The decision button 107 has a function of recording a "post-meal flag" or a "diet record" which will be described later on the blood glucose level table if it is long-pressed.

When the blood glucose meter 101 is in the "post-meal flag" mode, the decision button 107 functions as a "post-meal button", and the post-meal flag is recorded in the corresponding record of the blood sugar level table.

When the blood glucose meter 101 is in the "diet flag" mode, the decision button 107 functions as a "diet button", and the diet record is additionally recorded in the blood glucose level table.

The mode of "post-meal flag" and the mode of "diet flag" can be switched by operating in accordance with the setting menu displayed after the setting button 111 is pressed.

An optical measuring portion 109 protected by a detachable outer cover 108 is provided on one of the short sides of the casing 102 of the blood glucose meter 101. A protrusion (not shown) is provided inside the cover 108, and the protrusion is broken by a recess 112 provided in the housing 102 to disconnect a micro switch (not shown) built in the housing 102. operating.

The blood glucose meter 101 that operates by a well-known battery including a lithium ion battery or the like is in a sleep mode in which power is saved in a non-operating state. The blood glucose meter 101 in the sleep mode long presses the up direction button 105 or the unloading cover 108 to turn on the micro switch, whereby the blood glucose meter 101 returns to the active mode in which all functions can be utilized. Hereinafter, the state of the sleep mode is referred to as "power off state", and the state of the active mode is referred to as "power on state".

Further, as shown in FIG. 1C, when the power supply-on state is turned off by the removal of the cover 108, it is assumed that the blood glucose level is immediately measured, and a guide of chip mounting is displayed on the liquid crystal display 103. The wafer mounting guide is an illustration and guide text displayed on the liquid crystal display 103 of FIG. 1B.

[Functional composition]

FIG. 2 is a block diagram showing the configuration of the blood glucose meter 101.

The blood glucose meter 101 is centered on a well-known microcomputer (microcomputer). Into the electronic device. The microcomputer reads a program stored in a read only memory (ROM) (not shown) to realize a part of the configuration shown in FIG. 2.

The blood glucose level measuring unit 201 detects a change in the optical reflectance of the test paper 203 which is discolored by the blood 202 of the measurement subject, and measures the blood sugar level.

The structure of the basic blood glucose measurement of the blood glucose meter 101 is the same as that of the prior art. Hereinafter, the structure for measuring the blood glucose level will be briefly described.

A measurement wafer (not shown) is attached to the blood glucose meter 101, and the blood 202 of the measurement target is led to the measurement wafer. A test paper 203 made of a porous film such as polyethersulphone is incorporated in the measurement wafer. Then, when the blood 202 leading to the measurement wafer reaches the test paper 203, it reacts with the reagent contained in the test paper 203 to develop color. Next, light emitted from a Light Emitting Diode (LED) 204 as a light-emitting element is supplied to the test paper 303, and the reflection from the test paper 203 is received by a photodiode 205 as a light-receiving element. Light. Further, after a predetermined reaction time, the analog received light intensity signal obtained from the photodiode 205 is converted into a digital value by an analog to digital (A/D) converter (not shown). Convert this digit value to a blood glucose value.

Further, the configuration of the blood glucose level measurement is not limited to the above-described optical measurement method using a color developing reagent, and a configuration that can be used for blood glucose measurement from the prior art, such as an electrochemical sensor method, may be employed.

The real time clock (RealTime Clock: "RTC") 206 is mostly equipped in a general microcomputer, and outputs date and time information. The RTC 306 is supplied with power even when the power is off, so that accurate date and time can be output. News.

The blood glucose level table 207 is a table in which the measurement date and time, the measured blood glucose level, and the postprandial flag described later are recorded. The blood glucose level table 207 is a non-volatile memory (not shown) such as an electrically erasable programmable read-only memory (EEPROM).

The operation unit 208 is the operation button 104 of FIGS. 1A to 1C, and the display unit 209 is the liquid crystal display 103 of FIGS. 1A to 1C.

The input/output control unit 210 additionally records the blood glucose level data obtained from the blood glucose level measuring unit 201 and the measurement date and time obtained from the RTC 206 to the blood glucose level table 207. Further, in addition to displaying the measured blood glucose level on the display unit 209, various data processing is performed in accordance with the operation of the operation unit 208.

The short-range wireless communication unit 214 is configured to transmit the blood glucose level data in the blood glucose level table 207 to a personal computer or the like.

The serial interface 215 is used to transmit the blood glucose level data in the blood glucose level table 207 to an external device such as a personal computer.

When the diet button is pressed and the button 107 is determined, the input/output control unit 210 acquires the current date and time information from the RTC 306, and causes the buzzer 216 to sound after two hours.

The input/output control unit 210 controls the supply of electric power to the display unit 209 and the blood glucose level measuring unit 201.

The input/output control unit 210 does not supply electric power from the battery 220 to the display unit 209 and the blood glucose level measuring unit 201 in the power-off state.

When the input/output control unit 210 detects that the up direction button 105 is long pressed or the cover 102 is removed and the micro switch 217 is turned on, the power is turned on, and the display unit 309 and the blood sugar level are received from the battery 220. The measuring unit 201 supplies electric power.

FIG. 3 is a schematic view showing an example of the column configuration and recording of the blood glucose level table 207.

The date and time information of the time at which the blood glucose level is measured is stored in the date and time column.

The measured blood sugar level is stored in the blood glucose value column.

A postprandial flag is stored in the postprandial flag column. The postprandial flag is a postprandial flag indicating that the blood glucose level in the blood glucose value after the meal is measured by the long press of the decision button 107 when the blood glucose level is measured.

The records in which the blood glucose levels are recorded in the blood glucose level table 207 are recorded in the order of time series. Therefore, the final record is the latest record.

FIG. 4 is a flowchart showing the flow of sleep processing of the blood glucose meter 101.

When the sleep process is started (S401), the input/output control unit 210 of the blood glucose meter 101 blocks power supply to a device having a large power consumption such as an A/D converter, a display unit 209, or an LED 304 (not shown). And it becomes a sleep mode that operates at a low frequency clock of several hundreds of kHz to several MHz. The operation of the operation unit 208 and the state of the micro switch are detected by the input/output control unit 310 (S402).

The input/output control unit 210 determines whether the operated operation button 104 is a long press of the up direction button 105, that is, whether the power button has been pressed and whether the micro switch has been turned on (S403).

When the power button is pressed or the micro switch is turned on (YES in S403), the input/output control unit 210 executes the main process (S404), and thereafter ends the process (S405).

When the power button is not pressed and the micro switch is not turned on (NO in S403), the input/output control unit 210 ends the processing without performing any operation (S405). This sleep processing is a loop operation that is repeated again and again after the processing ends.

FIG. 5 is a flowchart showing a detailed flow of main processing of the blood glucose meter 101 in step S404 of FIG. 4 .

When the main processing is started (S501), the input/output control unit 210 performs predetermined initialization processing such as supplying electric power to a device having a large power consumption such as the display unit 209 or the LED 204 (S502). Thereafter, it is checked whether or not the information display at the time of startup is executed with reference to the setting information stored in the various setting values 218 (S503).

When the setting of the information display at the time of startup is performed (YES in S503), the input/output control unit 210 executes the blood sugar level evaluation display processing (S504). Then, the input/output control unit 210 displays the main menu on the display unit 209 (S505), and waits for the operation of the operation unit 308 (S506).

In step S603, if the setting of the information display at the time of startup is not performed (NO in S603), the input/output control unit 310 does not execute the blood glucose level evaluation display process of step S504, but immediately displays it on the display unit 309. The main menu (S505) waits for the operation of the operation unit 208 (S506).

If the operation content obtained from the operation button 104 is the measurement of the blood sugar level (YES in S507), the input/output control unit 210 executes the blood sugar level measurement process (S508), and thereafter displays the main menu again (S505).

When the operation content obtained from the operation button 104 is not the blood glucose level measurement (NO in S507), and the operation content is an instruction to display the history of the past blood sugar level (Yes in S509), the input/output control unit 310 executes The history display processing (S510), and thereafter the main menu is displayed again (S505).

When the operation content obtained from the operation button 104 is not an instruction to display the history of the past blood sugar level (NO in S509), and the operation content is an instruction to perform various settings (NO in S511), the input/output control unit 310 Various setting processes are performed (S612), and thereafter the main menu is displayed again (S505).

When the operation content obtained from the operation button 104 is not an instruction to perform various settings, and the operation content is an instruction that the operation content is the power-off (YES in S513), the input/output control unit 210 refers to the storage in the various setting values 218. Set the information to confirm whether or not to execute the information display at the time of stop (S613). When the setting of the information display at the time of the stop is executed (YES in S513), the input/output control unit 310 executes the blood sugar level evaluation display processing (S514). Then, the input/output control unit 310 performs a power-off process (S515), and ends a series of processes (S516).

In step S513, if the setting of the information display at the time of the stop is not executed (NO in S513), the input/output control unit 210 does not execute the blood sugar level evaluation display processing of step S514, but immediately performs the power-off processing ( S515), ending a series of processing (S516).

Fig. 6 is a view showing evaluation of blood sugar level in steps S504 and S514 of Fig. 5; Flowchart of the detailed process of processing.

When the blood sugar level evaluation process is started (S601), the input/output control unit 210 first acquires the current date and time information from the RTC 206 (S602). Further, the input/output control unit 210 refers to the setting information stored in the various setting values 218, and confirms whether or not the current date and time is the date and time of the display graphic (S603).

If the current date and time is the date and time of the display graphic (Yes in S603), the input/output control unit 210 executes the graphic display processing and displays the graphic on the display unit 209 (S604). Further, the input/output control unit 210 waits for an arbitrary button operation and a timeout of a predetermined time, for example, 5 seconds (S605).

After executing the graphic display processing of step S604, the input/output control unit 210 waits for an arbitrary button operation for at most 5 seconds in step S605. When five seconds have elapsed since step S604, or an arbitrary button has been operated, the input/output control unit executes five-stage display processing, and displays a face illustration of the five-stage evaluation result on the display unit 209 (S606). In addition, the face illustration will be described in FIG. 9D. Then, the input/output control unit 210 waits for an arbitrary button operation and a timeout of a predetermined time, for example, 5 seconds (S607).

The input/output control unit 210 executes the five-stage display processing of step S606, and waits for an arbitrary button operation for at most 5 seconds in step S607. When 5 seconds have elapsed from step S606 or an arbitrary button has been operated, the input/output control unit ends the series of processing (S608).

FIG. 7 is a view showing a display example of a setting screen of the graphic display on the liquid crystal display 103.

In step S512 of FIG. 5, when the input/output control unit 210 executes various setting processes, a plurality of setting screens are displayed on the display unit 209. One of the setting screens is a setting screen of the graphic display of FIG.

In the case of FIG. 7, the setting of the three-month graphic is "1" in the three-month setting column 701, and therefore is set every three months from January. Further, when the three-month graphic is not displayed, "0" is input in the three-month setting field 701.

Similarly, "1" is entered in the one-month setting field 702, so the one-month graphic is set to the setting displayed on the first week of each month. Further, when the one-month graphic is not displayed, "0" is input in the one-month setting column 402.

"Day" is entered in the day setting column 703, and "16:00 to 22:00" is entered in the time zone setting column 704. Therefore, the weekly graphic is set to be displayed between the hours of 16:00 and 22:00 on the Sunday of each week. Settings. Further, when the week graphic is not displayed, the day setting column 703 is set to be blank.

Moreover, in the check box 705 when the power is turned on and the check box 705 when the power is turned off, the check mark is recorded in the check box 706, and the check mark is recorded in each display check box 707. These two patterns are displayed each time between 16 o'clock and 22 o'clock on Sundays when the power is turned on and when the power is turned off.

After the predetermined setting value is entered in the input field and the verification block described above, when the OK button 708 is pressed by the decision button 107, the setting content is stored in the various setting values 218, and when the cancel button 709 is pressed by the decision button 107, Discard the settings.

In the case of the above setting example, the 16th of the first week of January is 16 During the period of 22 o'clock, the three-month graph, the one-month graph, and the weekly graph are displayed at the two timings of each power-on and power-off.

Further, after the second week of January, during the period from 16 o'clock to 22 o'clock on the Sunday of the last week of January, only the weekly pattern is displayed at the time of each power-on and power-off.

Further, during the period from 16:00 to 22:00 on Sunday in the first week of February, the one-month pattern and the weekly pattern are displayed at the two timings of each power-on and power-off.

Further, during the period from 16:00 to 22:00 on Sunday in the first week of April, the three-month pattern, the one-month pattern, and the weekly pattern are displayed at the two timings of each power-on and power-off.

Further, in the initial state, the blood glucose meter 101 automatically recognizes the first measurement day (the date on which the blood glucose level is displayed for the first time), and the graphic display function performs display in accordance with the default setting previously recorded in the ROM. If the identified initial measurement date is April 16, 2012, the default setting of the graphic display function is to automatically input "4" into the three-month setting field 701, and automatically input "3" to the one-month setting field 702. , "Monday" is automatically input to the day setting column 703. "16:00~22:00" is set as the preset setting in the time zone setting column 704.

8A, 8B, 8C, and 9D are diagrams showing a display example of a graphic display on the liquid crystal display 103.

Fig. 8A is a weekly figure. The weekly measured blood glucose values are roughly classified into three groups based on two thresholds, and the number of measurements according to "high blood sugar" (blood sugar value is higher than the reasonable range), "OK" The number of measurements (the blood glucose level is within a reasonable range) and the number of measurements of "hypoglycemia" (the blood glucose level is below the reasonable range) form a bar graph.

Fig. 8B is a second week pattern. The blood glucose level measured every week is compared with the threshold value of the five-stage evaluation described in FIGS. 10A to 10E, and the determination result is accumulated to form a bar graph. The color of the face mark and the bar figure displayed on the bar graph is the same design and color matching as the face illustration of FIGS. 10A to 10E.

Figure 8C is a one month graph. The blood glucose values measured each month are classified into pre-meal for breakfast, after-dinner for breakfast, before meals for lunch, after meals for lunch, before meals for dinner, after meals for dinner, and when sleeping, and the average value is calculated. , maximum and minimum values. Moreover, the value is displayed in the form of a stock price list.

Figure 9D is a three month graph. Every three months, calculate the average of fasting blood glucose values from the current month before, the average of fasting blood glucose values from one month to two months ago, and two months to three months ago. The average value of the fasting blood glucose values up to now is displayed in a line graph.

10A, 10B, 10C, 10D, and 10E are diagrams showing a display example of a face illustration of a five-stage display on the liquid crystal display 103.

The input/output control unit 210 reads the blood glucose level from the current week to the four weeks before the blood glucose level table 207, calculates the moving average value, and compares it with the threshold value of the five-stage evaluation stored in the various setting values 218 to display The facial illustration of the five-stage evaluation is the result.

The five-stage evaluation is based on the threshold of the Diabetes Care Guidelines (http://www.lifescience.jp/ebm/cms/ms/no.19/topics.pdf) compiled by the Japan Diabetes Association. And show the face illustration.

Fig. 10A is a face illustration showing a low blood sugar level. Displayed when the blood glucose level on an empty stomach and the blood glucose level at 2 hours after a meal does not reach 80 mg/dl (dl). Actually, the face illustration P1001 is displayed in blue.

Fig. 10B is a face illustration showing a reasonable blood sugar level. When the blood glucose level is in the range of 80 mg/dl to 110 mg/dl on an empty stomach and the blood glucose level is 80 mg/dl to 140 mg/dl two hours after a meal, it is displayed. In fact, the face illustration P1002 is displayed in yellow-green.

Fig. 10C is a face illustration showing a slightly higher blood sugar level. When the blood glucose level is above 110 mg/dl and not in the range of 130 mg/dl on fasting, and the blood glucose level is above 140 mg/dl and less than 180 mg/dl two hours after a meal. Actually, the face illustration P1003 is displayed in yellow.

Fig. 10D is a face illustration showing a high blood sugar level. When the blood glucose level is above 130 mg/dl and not in the range of 160 mg/dl on fasting, and the blood glucose level is above 180 mg/dl and less than 220 mg/dl two hours after a meal. In fact, the face illustration P1004 is displayed in pink.

Fig. 10E is a face illustration showing that the blood sugar level is too high and dangerous. It is displayed when the blood glucose level is in the range of 160 mg/dl or more on an empty stomach and the blood glucose level is above 220 mg/dl two hours after a meal. In fact, the face illustration P1005 is displayed in red.

The threshold for the five-stage evaluation was set to a different value before meals and two hours after meals. Therefore, it is impossible to simply add the blood sugar level before meals to the blood sugar level after meals to obtain an average value. Therefore, the blood sugar level two hours after the meal is analogically converted into the blood sugar level before the meal.

When the lower limit of the blood glucose level for two hours after a meal is a, the upper limit is b, the lower limit of the blood glucose level before meals is c, the upper limit is d, and after meals When the blood glucose level of two hours is set to x, the added value y of the blood sugar level converted from the blood glucose level x to the blood glucose level before meals can be calculated by the following formula.

As an example, the case of FIG. 10C is shown below.

When the blood glucose level is 155 mg/dl two hours after a meal, a=140, b=180, c=110, d=130, x=130 are substituted into the number 1 formula, and the blood glucose level after two hours of meal is used. The x analog conversion to the pre-prandial blood glucose value y is as follows.

(155-140) × (130-110) ÷ (180-140) + 130 = 137.5 mg / dl

That is, the blood glucose level of 155 mg/dl two hours after a meal can be converted into a pre-prandial blood glucose level of 137.5 mg/dl.

In addition, the pre-prandial blood glucose level can also be converted into a two-hour blood glucose level after meals to calculate the average value.

In addition, you can choose whether to include the two-hour value after meals in the average according to the settings. value. That is, it is possible to select and display only the average of the pre-meal value, the average of the post-prandial value, the pre-meal value, the average of the post-meal value, and the like as needed.

The blood glucose meter 101 of the present embodiment described above can be further applied to the following application examples.

(1) The threshold values of the five-stage evaluation stored in the various set values 218 are respectively stored for three before meals and three for two hours after meals. You can also set fewer thresholds. However, in order to indicate whether the blood glucose level is within a reasonable range, at least two thresholds are required. When the threshold value is two, the blood glucose level evaluation stage of the blood glucose meter 101 is three stages.

(2) In the above-described blood glucose meter 101, as a mode for distinguishing the blood glucose levels before and after meals, the postprandial flag column is set in the blood glucose level table 207. When the blood glucose meter 101 is in the mode of "post-meal button", the post-meal flag column is set in the blood sugar level table 207.

On the other hand, in the blood glucose meter 101, instead of setting the postprandial flag column in the blood sugar level table 207, there is a mode of "diet button", by which the patient performs a long press operation on the decision button 107 immediately before eating. On the other hand, the blood glucose level table 207 additionally records a record of the date and time information of only the start of the diet. The mode of "post-meal button" and the mode of "diet button" can be switched by setting.

FIG. 11 is a schematic diagram showing an example of the field configuration and recording of the blood glucose level table 207 in the mode of the diet button.

In the mode of the diet button, the postprandial flag column does not exist in the blood glucose level table 207. Instead, there is a record such as a blood glucose value column with a value of "0", which cannot be used as blood. A record of the value of the sugar value (outlier). This record is recorded to the diet record in the blood glucose level table 207 by pressing the diet button (long press decision button 107). The input/output control unit 310 determines the record immediately after the record of the eating and recording, and the record recorded within 3 hours from the date and time of recording the eating record is the post-meal record. Further, the recording of the normal blood sugar level is recorded in the case where the recording does not satisfy the condition, and the input/output control unit 210 determines all of them as the records before the meal. In addition, if there is a post-meal flag column, the column labeled "Post-meal flag" in Figures 10A to 10E indicates how the stored logical value changes. In addition, outliers can also record information that is not a numerical value.

The blood sugar level table 207 can perform the above-described graphic display and five-stage evaluation in the same manner even in such a configuration.

(3) In the mode of the diet button, it is basically recommended to press the diet button when starting the diet after measuring the blood glucose level. However, depending on the patient's living habits, there are also patients who prefer the order in which the blood glucose level is measured after pressing the diet button and then the diet is started. Therefore, it is preferable to be able to change the time of determining the blood sugar level before meals and the blood sugar level after meals, based on the diet record.

For example, the judgment time is set one hour after the time of recording the diet record. In this case, the blood glucose level within the first hour is regarded as the pre-prandial value, and the blood glucose value within the next three hours is regarded as the post-prandial value, based on the time after one hour from the time of recording the dietary record. As an example, when the time for recording the diet record is 11:30, the blood glucose level measured from 11:30 to 12:30 is regarded as the pre-meal value at 12:30 after one hour. The blood glucose level measured from 12:30 to 15:30 was regarded as the postprandial value.

Further, the blood glucose meter is not limited to the above example, and the blood glucose meter has one side as an electronic computer that processes the biological information. Therefore, it is preferable that various operating conditions or thresholds can be changed corresponding to the patient using a setting screen similar to that of FIG. 7. For example, whether or not the graphs of FIGS. 8 and 9D are all displayed, the range of the average value of the five-stage evaluation of FIGS. 10A to 10E, the pre-prandial value of the diet recording mode, and the time range of the post-meal value are determined, which is equivalent to The operating conditions or thresholds that are changed in response to the patient.

The time range that can be set as the pre-meal value is preferably one hour before and after the recording time with respect to the diet record. Further, the time range for the postprandial value processing is 3 hours after the meal recording recording time, based on the time when the food record recording time and the pre-prandial value time range are later.

(4) FIG. 7, FIG. 8A, FIG. 8B and FIG. 8C, FIG. 9D, FIG. 10A, FIG. 10B, FIG. 10C, FIG. 10D and FIG. 10E are performed by executing the flowcharts of FIGS. 4, 5, and 6. The display function of the blood sugar level on the realized liquid crystal display 103 can also be realized using a separate computer.

12A and 12B are block diagrams showing the configuration of the hardware of the blood glucose meter 101 and the personal computer 1200.

FIG. 12A is a block diagram showing a configuration of a hardware of the blood glucose meter 101.

In the blood glucose meter 101 of an electronic device including a well-known microcomputer, a central processing unit (CPU) 1201, a ROM 1202, a random access memory (RAM) 1203, an RTC 206, and an operation are provided. The unit 208, the display unit 209, the non-volatile memory 1207 including the blood glucose level table 207 and various setting values 218, the short-range wireless communication unit 214, the serial interface 215, The buzzer 216, the micro switch 217 that can be assembled into the recess 112 and detects the loading and unloading of the outer cover 108, the digital to analog (D/A) converter 1204 connected to the LED 204, and the photodiode 205 are connected. The A/D converter 1205 is connected to a bus 1206.

FIG. 12B is a block diagram showing the configuration of the hardware of the personal computer 1200.

In the personal computer 1200, the CPU 1201, the ROM 1202, the RAM 1203, the RTC 206, the operation unit 208, the display unit 209, and the non-volatile storage 1207 are connected to the bus bar 1206. The hardware of the personal computer 1200 is equivalent to the removal of the short-range wireless communication unit 214, the serial interface 215, the buzzer 216, the micro switch 217, the D/A converter 1204 connected to the LED 204, and the connection to the photoelectricity from the blood glucose meter 101. The configuration of the A/D converter 1205 of the diode 205.

Further, the personal computer 1200 can also display the flowcharts shown in FIG. 4, FIG. 5, and FIG. 6, and the programs associated therewith, and display the display unit 209 on FIG. 7, FIG. 8A, FIG. 8B, and FIG. The function of the evaluation of the blood glucose level shown in 9D, 10A, 10B, 10C, 10D, and 10E. That is, the blood glucose level measuring function is not essential for the display functions shown in FIGS. 7 , 8A, 8B, 8C, 9D, 10A, 10B, 10C, 10D, and 10E. The display function is data (blood glucose value table 307, etc.), arithmetic processing function (input/output control unit 120, etc.), operation unit 208, and display unit 209.

That is, by executing the flowcharts shown in FIGS. 4, 5, and 6 and the programs associated therewith, FIG. 7, FIG. 8A, FIG. 8B, FIG. 8C, FIG. 9D, FIG. Display of blood glucose values shown in FIGS. 10B, 10C, 10D, and 10E The function can also be formed by the hardware of the personal computer 1200.

In the present embodiment, a blood glucose meter 101 is disclosed.

The blood glucose meter 101 reads out the blood glucose level table 207 in which the measured blood glucose level is recorded when the power is turned on and/or when the power is turned off, and calculates the moving average value of the past measured blood glucose values from the current to the predetermined period. The moving average value is evaluated against the five-stage evaluation, and as a result, any one of the face illustrations P1001, P1002, P1003, P1004, or P1005 is displayed on the display unit 209, whereby the patient clearly determines the management state of his or her blood sugar level. .

Further, when the specific time of the specific week is reached, the blood glucose meter 101 reads out the blood sugar level table 207 in which the measured blood sugar level is recorded when the power is turned on and/or when the power is turned off. Then, the average value of the measured blood glucose levels from the current to the predetermined period is calculated, and a graph based on the average value is displayed on the display unit 209, whereby the patient can clearly know the management state of his or her blood sugar level.

The embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and other modifications and application examples are included without departing from the gist of the invention described in the claims.

701‧‧‧Three-month setting bar

702‧‧‧One month setting bar

703‧‧‧ week setting bar

704‧‧‧Time period setting bar

705‧‧‧Check the box when the power is turned on

706‧‧‧Check the box when the power is off

707‧‧‧Display checkboxes each time

708‧‧‧OK button

709‧‧‧Cancel button

Claims (6)

A blood glucose meter includes: a blood sugar level measuring unit that measures a blood sugar level of a patient; and a blood sugar level table that includes a blood sugar value column in which the blood sugar level of the patient measured by the blood sugar level measuring unit is stored, and stores the blood sugar level The measuring unit measures the date and time column of the measurement date and time when the blood glucose level of the patient is measured; the current time pulse outputs the current date and time information; the display unit displays the blood sugar level stored in the blood sugar value column; and the operation unit gives the above And an input/output control unit that obtains the current date and time information from the instant clock after the operation of the operation unit is supplied to the display unit, and the current date and time information and the predetermined When the day of the week and the time zone match, the blood glucose level in the predetermined period is read from the blood glucose level table, and a graph based on the blood glucose level is displayed on the display unit. The blood glucose meter according to claim 1, wherein the blood sugar level table further comprises a postprandial flag column, wherein the postprandial flag column indicates whether the patient determines the blood glucose level after a meal; and the input/output control unit is configured according to The logic of the post-meal flag column is that the blood glucose value recorded after the meal and the log of the post-prandial flag column are different from the blood glucose values recorded before the meal, and are displayed on the display unit. The above graphics. The blood glucose meter according to claim 1, wherein the blood glucose level table is recorded by setting a value of the blood sugar level column to an abnormal value. Indicates a diet record immediately before eating; the input/output control unit different threshold values from the blood glucose value recorded immediately after the meal record and the blood glucose value recorded immediately before the meal record The above display is displayed on the display unit. A program for causing a computer to function as a graphic display device, the graphic display device comprising: a blood glucose level table, a blood glucose value column storing a blood glucose level of a patient measured by a blood glucose meter, and a blood glucose meter storing the blood glucose meter to measure the patient a date and time column of the measurement date and time in the blood glucose level; an instant clock, outputting the current date and time information; a display unit displaying the blood glucose value stored in the blood glucose value column; and an operation unit providing an instruction to supply power to the display unit And an input/output control unit that obtains the current date and time information from the instant clock after the power is supplied to the display unit in response to the operation of the operation unit, and the current date and time information matches the predetermined day and time period At this time, the blood glucose level in the predetermined period is read from the blood glucose level table, and a graph based on the blood glucose level is displayed on the display unit. The program of claim 4, wherein the blood glucose level table further comprises a postprandial flag column, wherein the postprandial flag column indicates whether the patient determines the blood glucose level after a meal; and the input/output control unit is configured according to the above The logic of the post-meal flag column is the true blood sugar value recorded after the meal, and the logic of the above-mentioned post-meal flag column is a false pre-meal record. The pattern is displayed on the display unit with different threshold values of the blood glucose levels. The program according to claim 4, wherein the blood glucose level table records a dietary record indicating that the diet is to be eaten by setting the value of the blood glucose level column to an abnormal value; and the input/output control unit is based on the diet The blood glucose level recorded after the meal and the threshold value different from the blood glucose values recorded before the meal record are displayed on the display unit.