JP2007117434A - Biological signal measurement evaluation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biological signal measurement evaluation system which can evaluate a biological signal measurement accurately in the case of circadian variation of biological signal measurement and enables the evaluator to flexibly change the setting for the measurement. <P>SOLUTION: The system comprises at least an input section and a data processing section an output section. The input section has a capacity for inputting the biological signal measurement and the data processing section has a threshold setting means and an evaluating means for measurement. The threshold setting means has a capacity for setting the 2 or more threshold values as threshold value for the measured value in accordance with the measurement condition of the measured value. The evaluating means for measurement has a capacity for providing evaluation flag of measured value for the measured value in accordance with the comparison between the measured value and the threshold value. The input section evaluates the biological signal measured value by its capacity for inputting the evaluation flag of measured value. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a biological signal measurement value evaluation system that evaluates a measurement value of a biological signal by comparing the measured biological signal with a threshold value for a measurement value set in advance.

  In the conventional biological signal evaluation system, a threshold value for the measured value of the biological signal is set in advance, the measured value of the biological signal of the measurer is compared, and if the measured value exceeds the threshold value, attention is paid to the health condition. Notifications to prompt were sent to the measurer and the medical institution managing the measurer.

  In order to explain a conventional biological signal measurement value evaluation system, a conventional threshold setting screen is shown in FIG. Here, in order to preset the threshold for the measurement value of the biological signal, the alert button 1501 is pressed to display the threshold setting screen. Next, a measurer is selected from the measurer list 1502, and the threshold value 1530 of each biological signal for the measurer, that is, the upper limit value and lower limit value for each biological signal are input to the input box 1504, and the threshold values for all biological signals are input. Then, the add button 1505 is pressed to save the threshold setting for each biological signal (see, for example, Patent Document 1).

  However, in the conventional biological signal measurement value evaluation system, it has not been sufficiently considered that the measurement value of the biological signal may vary depending on the measurement time. For example, when a blood glucose level is considered as a biological signal, the blood glucose level differs greatly between an empty stomach and 2 hours after a meal, and generally the blood glucose level is higher after a meal.

  This is also described in the Diabetes Guidelines published by the Japan Diabetes Society (see Diabetes, Volume 45, Supplementnet 1, 2002). As an example, in the diabetes guideline, blood glucose control that is evaluated as good is that the fasting blood glucose level is 100 mg / dL or more and less than 120 mg / dL, and the blood glucose level 2 hours after meal is 120 mg / dL or more and 170 mg / dL. less than dL. As described above, the evaluation of blood glucose level differs greatly between fasting and 2 hours after meal, but this is not taken into consideration in the conventional system, and only an upper limit value and a lower limit value are set as threshold values for blood glucose level. It was.

Another example of a biological signal is a blood pressure value. There are two types of blood pressure values, a maximum blood pressure value and a minimum blood pressure value, both of which have diurnal fluctuations, so that the measurement value changes depending on the measurement time. That is, in order to strictly evaluate the blood pressure value, it is necessary to consider the measurement time as the blood pressure value threshold. Nevertheless, at present, there has been no system that considers the measurement time as the blood pressure threshold.
Japanese Patent Laid-Open No. 2002-83066 (page 18, FIG. 12)

  However, the conventional biological signal measurement value evaluation system has a problem in that a temporal change is ignored for a biological signal whose threshold value for evaluating the measurement value varies depending on the measurement time.

  The present invention has been made to solve the conventional problems, and in order to evaluate the measurement value of the biological signal, the measurement value is considered in consideration of the measurement condition or measurement time of the biological information as a preset threshold value. An object of the present invention is to provide a biological signal measurement value evaluation system that evaluates a measurement value of a biological signal based on whether or not the threshold value is exceeded.

  The biological signal measurement value evaluation system of the present invention includes at least an input unit, a data processing unit, and an output unit, the input unit has a function of inputting a measurement value of a biological signal, and the data processing unit is a threshold setting unit. And a measurement value evaluation means, wherein the threshold value setting means has a function of setting two or more threshold values according to measurement conditions of the measurement value as a threshold value for the measurement value, and the measurement value evaluation means It has a function of giving a measurement value evaluation flag for the measurement value by comparing a value with the threshold value, and the output unit has a function of outputting the measurement value evaluation flag.

  With this configuration, the measured value of the biological signal can be accurately evaluated even when the measured value of the biological signal and the threshold value for the measured value vary with respect to the measurement condition.

  The biological signal measurement value evaluation system according to the present invention is characterized in that the measurement time of the measurement value is within a predetermined time after the meal time or other than the predetermined time after the meal time as a measurement condition.

  With this configuration, when the measurement value of the biological signal varies with respect to the meal, the measurement value of the biological signal can be accurately evaluated, and the evaluation work amount by the evaluator can be reduced.

  In addition, the biological signal measurement value evaluation system of the present invention is characterized in that the measurement time of the measurement value is whether it is during sleep or other than during sleep.

  With this configuration, when the measured value of the biological signal varies with respect to sleep, the measured value of the biological signal can be accurately evaluated, and the evaluation work amount by the evaluator can be reduced.

  Moreover, the biological signal measurement value evaluation system of the present invention is characterized in that the measurement time of the measurement value is during exercise or other than during exercise as a measurement condition.

  With this configuration, when the measurement value of the biological signal varies with respect to the motion, the measurement value of the biological signal can be accurately evaluated, and the evaluation work amount by the evaluator can be reduced.

  The biological signal measurement value evaluation system according to the present invention is characterized in that the measurement time of the measurement value is within a predetermined time or other than the predetermined time as a measurement condition.

  With this configuration, when the measured value of the biological signal varies with respect to the measurement time, the measured value of the biological signal can be accurately evaluated, and the amount of evaluation work by the evaluator can be reduced.

  The biological signal measurement value evaluation system according to the present invention is characterized in that the time difference between the measurement time of the measurement value and the meal time immediately before the measurement time is within a predetermined time or other than the predetermined time as a measurement condition.

  With this configuration, when the measured value of the biological signal fluctuates with respect to the time difference between the measurement time and the immediately preceding meal time, the measured value of the biological signal can be accurately evaluated, reducing the amount of evaluation work by the evaluator can do.

  The biological signal measurement value evaluation system according to the present invention is characterized in that the time difference between the measurement time of the measurement value and the wake-up time immediately before the measurement time is within a predetermined time or other than the predetermined time as a measurement condition.

  With this configuration, when the measured value of the biological signal fluctuates with respect to the time difference between the measurement time and the previous wake-up time, the measured value of the biological signal can be accurately evaluated, and the amount of evaluation work by the evaluator is reduced. can do.

  In the biological signal measurement value evaluation system according to the present invention, the threshold value setting unit sets two or more threshold values according to the measurement condition of the measurement values as threshold values for the measurement values, and sets an upper threshold value and a lower threshold value as the threshold values. In this case, the threshold value is set while the difference between the upper limit threshold value and the lower limit threshold value is kept constant.

  With this configuration, when the measurement value of the biological signal is evaluated from the measurement value of the biological signal, it is possible to reduce the amount of threshold setting work performed by the evaluator.

  In the biological signal measurement value evaluation system according to the present invention, the threshold value setting means determines whether the time difference between the measurement time of the measurement value and the meal time immediately before the measurement time is a predetermined time or other than the predetermined time. It has a function of setting a maximum value of the time difference for setting the threshold when setting two or more thresholds.

  With this configuration, when the measured value of the biological signal fluctuates with respect to the time difference between the measurement time and the immediately preceding meal time, the measured value of the biological signal can be accurately evaluated, and the threshold setting work by the evaluator can be performed. The amount can be reduced.

  In the biological signal measurement value evaluation system according to the present invention, the threshold value setting means determines whether the time difference between the measurement time of the measurement value and the wake-up time immediately before the measurement time is a predetermined time or other than the predetermined time. It has a function of setting a maximum value of the time difference for setting the threshold when setting two or more thresholds.

  With this configuration, when the measured value of the biological signal fluctuates with respect to the time difference between the measurement time and the previous wake-up time, the measured value of the biological signal can be accurately evaluated, and the threshold setting work by the evaluator can be performed. The amount can be reduced.

  The present invention has a function of setting a threshold value in advance for a measurement value of a biological signal and setting a threshold value that varies according to measurement conditions and measurement time as the threshold value. For a person who can accurately evaluate and evaluate the measurement value of the biological signal, the method for setting and evaluating the biological signal can be given more flexibility, and the amount of work for the evaluation can be reduced.

  The best mode for carrying out the present invention will be described below with reference to the drawings. Throughout the drawings, the same reference numeral represents the same object.

(Embodiment 1)
A first embodiment of the present invention will be described. In the first embodiment, a measurement condition for evaluating a measurement value of a biological signal, here, a threshold value according to before and after a meal is set, and the measurement according to the measurement time is compared with the threshold value according to the measurement time. The operation of the process for evaluating the value will be described. Here, “after meal” means within a predetermined time after the meal time, and “before meal” means other than the predetermined time after the meal time, and the predetermined time varies depending on the biological signal.

  FIG. 1 is a configuration diagram of the biological signal measurement value evaluation system according to the first embodiment of the present invention. In FIG. 1, a biological signal measurement value evaluation system includes a control unit 101 that controls input and output and performs data processing, a storage unit 102 that stores measurement values and measurement value evaluation results, and threshold values and settings of biological information. And an input unit 103 for displaying the setting confirmation and evaluation results on the screen. The measurement value of the biological signal is described as being input via the input unit 104 and stored in the storage unit 102.

  However, a method of inputting a measurement value from an external system via a communication unit can be assumed as a measurement value input path of a biological signal, and the present invention is not limited to this. The input unit 103 is described as a mouse and a keyboard in the description. However, the input unit 103 includes everything that a person inputs to the device, such as a jog dial and a touch panel, and is not limited thereto. Although the display unit 104 is described as a screen display, the output method can be assumed to be audio output or vibration output, and is not limited thereto.

  Regarding the above-described biological signal measurement value evaluation system, the flow of processing will be described with reference to FIG. FIG. 2 is a flowchart of the biological signal measurement value evaluation system according to the first embodiment of the present invention. This system is assumed to be used by an evaluator who evaluates a measured value of a biological signal, for example, a doctor or a nurse in a medical institution.

  The evaluator first inputs a process to be performed to the system via the input unit 101 (S201), and the control unit 101 determines the input process (S202). When the evaluator selects the setting process as an input, a threshold setting process is performed on the measurement value of the biological signal (S203).

  If there is a measurement signal input from the measurer, the measurement value is stored in the storage unit 102, and a measurement value evaluation process is performed in the control unit 101 (S204). When the evaluator selects the measurement result display as an input, the biosignal measurement value stored in the storage unit 102 and the measurement value evaluation result are displayed on the screen (S205). When the evaluator selects the termination process as an input, the system is terminated.

  In the biological signal measurement value evaluation system described above, the threshold value setting process (S203) will be described in further detail with reference to FIGS. 3 to 6, and then the measurement value evaluation process (S204) will be described with reference to FIGS. The measurement result screen will be described in detail with reference to FIG. 9. Hereinafter, the biological signal to be measured will be described more specifically as a blood glucose level.

  FIG. 3 shows a flow of threshold setting processing, and FIG. 4 shows a threshold setting screen. When the evaluator selects the threshold setting process, a threshold setting screen is displayed (S301). First, the evaluator first selects the target measurer from the measurer selection list 401 (S302). Next, the evaluator selects measurement items of the biological signal from the measurement selection list 402, for example, blood glucose, blood pressure, weight, etc. (S303).

  Here, it is assumed that the measurer list and the measurement item list have been input in advance by the evaluator. In addition, here, blood glucose is described as an example of the measurement item, but the measurement item is not limited thereto.

  Next, the evaluator inputs a threshold value for the measurement value of the measurement item. Specifically, an upper limit value for a pre-meal measurement value (this is expressed as TH_B) is input to the input box 403 (S304), and an upper limit value for a post-meal measurement value (this is expressed as TH_A) is input box 404. (S305), and a lower limit value for the measured value is input to the input box 405 (S306).

  If the setting value input by the evaluator is to be saved, the save button 406 is pressed. If the setting value is not to be saved, the cancel button 407 is pressed (S307), and the setting saving is determined (S308). When saving the set value, processing is performed to check whether the set value is a numerical value and is within the correct range, and whether the relationship between the upper limit value and the lower limit value is reversed (S309). Whether the value is in the normal range is determined (S310). If the set value is not in the normal range, the error content is displayed on the screen (S311). If the set value is in the normal range, the set value is stored. Processing for saving in the unit 102 is performed (S312), and then the display of the threshold setting screen is terminated (S313). Here, an explanation has been given of performing different settings only for the upper limit value before and after a meal, but it is naturally applicable to the lower limit value, but the description is omitted.

  FIG. 5 shows a storage format of the threshold setting in the storage unit 102, and a case where the setting value is held in the database will be described as an example. FIG. 5 is an explanatory diagram of the storage format of the threshold setting value of the biological signal measurement value evaluation system according to the first embodiment of the present invention.

  In the database in the storage unit 102 (described in FIG. 1), it is managed by a threshold setting table 501 (enclosed by a broken line in the drawing). The threshold setting table 501 manages a plurality of threshold settings, and stores a pair of threshold settings in units of records.

  The threshold setting record includes the following items. Items included in one record include a measurer ID for specifying a measurer, a measurement type for specifying a biological signal to be measured, a time type indicating whether the measurement was performed before or after a meal, and a threshold value It consists of a threshold value, a measurement value and a threshold unit input in the setting process, a setter ID for specifying the setter, and a set date and time for specifying the set date and time. FIG. 6 is an example of specific setting values of each item in the threshold setting storage format.

  FIG. 7 shows the flow of the measurement value evaluation process. This process is performed by the control unit 101 (described in FIG. 1) when a measurement value of the biological signal is input via the input unit 104 (described in FIG. 1).

  First, the measurement value of the input biological signal is read, and at the same time, the measurement value, the measurement time, and the like are stored in the storage unit 102 (described in FIG. 1) (S701).

  Next, the control unit 101 confirms whether the measured value of the biological signal is valid, that is, whether the measured value is a numerical value, and whether the numerical value is in a normal range. If not, the measurement value evaluation process is terminated.

  Next, it is determined whether the biosignal measurement condition is before or after a meal. Here, it is assumed that the measurement condition for the measurement value, that is, the measurement time is input before or after the meal via the input unit 103 (described in FIG. 1).

  In another example, in the case of a blood glucose meter, after the measurer measures the blood glucose level with the blood glucose meter, the measurer inputs to the blood glucose meter whether or not to give a postprandial mark for the measurement. There is a function of storing a post-meal mark for the measurement in the storage unit. By referring to this post-meal mark, it can be determined whether the measurement condition is before or after the meal.

  If the measurement condition of the measurement value is before meal, the pre-meal threshold value TH_B is read (S704), and it is determined whether the measurement value exceeds the pre-meal threshold value TH_B. Processing to store in the storage unit 102 as exceeding the threshold (S708), and if the measured value does not exceed the pre-meal threshold TH_B, processing to store in the storage unit 102 that the measured value is normal in the evaluation flag for the measured value (S710).

  If the measurement condition of the measured value is after meal, the post-meal threshold value TH_A is read (S705), and it is determined whether the measured value exceeds the post-meal threshold value TH_A. If it exceeds, the evaluation flag for the measured value is set. Processing for storing in the storage unit 102 as an after-meal threshold value excess is performed (S708), and if the measured value does not exceed the post-meal threshold value TH_A, the evaluation flag for the measured value is stored in the storage unit 102 as the measured value normal. Processing is performed (S710).

  If it is necessary to notify the evaluator of the evaluation result for the measurement value, a process for notifying the evaluation result is performed (S711), and the measurement value evaluation process is terminated.

  As a means for notifying the evaluator of the evaluation result, a method of displaying the notification content on the display unit 103 on a screen, a method of voice notification via the voice output unit when a voice output unit exists as a configuration, When there is a communication unit as a configuration, all notification methods are included, including text notification by e-mail transmission and voice notification by telephone via the communication unit.

  In the description of the flow of processing using FIG. 7, the determination process for the lower limit value is omitted, but when the lower limit value is exceeded, the process of saving the excess lower limit value in the evaluation flag and saving it in the storage 102 is also natural. It is possible to do it. FIG. 8 is an example of specific values of measured values of biological signals and measured value evaluation results.

  FIG. 9 shows a measurement result screen. The evaluator selects a measurer in the measurer list 901 via the input unit 103, selects a measurement item from the measurement item list 902 via the input unit 103, and displays the target measurer's target measurement item on the display unit 104. The measurement result is displayed. What is displayed on the measurement result screen is the date and time on the horizontal axis and the measured value on the vertical axis, but in this example, the blood glucose level, the measured value graph 903, the upper limit graph 904 for the post-meal measured value, and the upper limit value for the pre-meal measured value A graph 905 and a lower limit graph 906 are displayed. Further, when the measured value exceeds the threshold value, it may be possible to notify the evaluator via the display unit 104 as in 907. If the evaluator wants to end the measurement result screen, pressing the cancel button 908 via the input unit 103 ends the screen display.

  In the first embodiment of the present invention, it has been described that different threshold values are set as pre-meal and post-meal as measurement conditions. However, measurement conditions other than meals are also conceivable. For example, a method of setting different threshold values depending on whether the measurement value measurement time is sleeping or otherwise, and a method of setting different threshold values depending on whether the measurement value measurement time is during exercise or otherwise are also conceivable.

(Embodiment 2)
A second embodiment of the present invention will be described. In the second embodiment, a threshold value corresponding to the measurement time is set in order to evaluate the measurement value of the biological signal, and the measurement value of the biological signal is evaluated by comparing with a threshold value corresponding to the measurement time. The operation will be described.

  The configuration diagram of the biological signal measurement value evaluation system according to the second embodiment of the present invention is the same as that of FIG. Further, the flow of processing in the biological signal measurement value evaluation system according to the second embodiment of the present invention is the same as that in FIG.

  In the above biological signal measurement value evaluation system, first, the threshold setting process (S203) will be described in more detail with reference to FIGS. 3, 10, and 11, and then the measurement value evaluation process (S204) will be described with reference to FIG. This will be described in detail with reference to FIG. Hereinafter, the measurement target biological signal will be described more specifically as the maximum blood pressure. However, the biological signal is not limited to the maximum blood pressure, and the biological signal measurement evaluation system of the present invention can be applied to the measurement values of other biological signals.

  The flow of the threshold setting process is partially the same as that in FIG. 3, and the description of the same part is omitted, and the process of the different part (S320) will be described. FIG. 11 shows the flow of this process (S320), and FIG. 10 shows a threshold value setting screen displayed via the display unit 104 in the process (S301).

  First, the evaluator inputs the upper limit value for the measurement value of the biological signal and the set value to the input box 1003 via the input unit 103 (S1101), and then inputs the lower limit value for the measurement value of the biological signal. The setting value is input to the input box 1004 via (step S1102).

  Next, when the evaluator wants to perform threshold setting differently according to the measurement time, the evaluator inputs the threshold setting time interval w into the input box 1003 via the input unit 103 (S1103). Here, it is assumed that the threshold setting time interval w corresponds to a number greater than 0 and equal to or less than 24, and also corresponds to a decimal within the numerical range. Further, when the threshold setting time interval w is not input, it is assumed that a different threshold setting cannot be performed according to the measurement time.

  Then, the control unit 101 determines whether or not the setting input has been changed (S1104). If there has been a change, the setting value update of the upper limit graph 1011 on the threshold setting screen and the upper limit value are displayed via the display unit 104. The display interval of the setting pointer 1007 is updated, the setting value of the lower limit graph 1012 is updated, and the display interval of the lower limit setting pointer 1008 is updated (S1105). Here, a number corresponding to a threshold for different measurement times is represented as a threshold setting number n, and 0 ≦ n <(24 / w) in the second embodiment of the present invention.

  Next, in order for the evaluator to easily input the threshold setting according to the measurement time, a procedure for inputting via the mouse as an example of the input unit 103 will be described. The evaluator can click the upper limit pointer 1007 (n) or the lower limit pointer 1008 (n) with the mouse on the display unit 104 and drag it up and down to set the threshold according to the measurement time. it can.

  However, the upper limit value pointer 1007 (n) and the lower limit value pointer 1008 (n) are threshold settings for measurement values after the measurement time is (nw) and less than ((n + 1) w). The same applies to other threshold setting numbers. The threshold setting number (for n + 1, the upper limit pointer 1007 (n + 1) and the lower limit pointer 1008 (n + 1) correspond to each measurement time. Also, there are upper limit and lower limit pointers, and when mouse input is set, settings with a lower limit greater than the upper limit are not allowed.

  Also, the evaluator can select the upper limit / lower limit value interlocking setting check box 1006 via the input unit 103 (S1106). Here, when the check box 1006 is selected, the upper limit graph 1011 and the lower limit graph 1012 can be set in conjunction with each other, so that the evaluator's setting work can be simplified. Further, when the check box 1006 is not selected, the upper limit graph 1011 and the lower limit graph 1012 can be set independently, so that a finer threshold can be set. The process S320 ends with the above contents, and the subsequent parts are the same as in FIG.

  Next, the flow of the measurement value evaluation process is partially the same as that in FIG. 7, and the description of the same part is omitted, and the process of the different part (S720) will be described. The flow of this process (S720) is shown in FIG. First, the control unit 101 determines the measurement time for the measurement value of the biological signal (S1201). Here, a case where the set time interval is w hours will be described together with the threshold setting number n.

  If the measurement time is after 0:00 and less than (w) time, the threshold TH_0 corresponding to the measurement time is read (S1202), and if the measurement time is after (nw) time and less than ((n + 1) w) time, according to the measurement time The threshold TH_ (n) is read (S1202), and the same processing is performed for other measurement times.

  Next, the control unit 101 compares the measured value with the threshold value TH_ (n) and determines whether or not it exceeds (S1205). That is, if it has exceeded, it is stored in the storage unit 102 as (nw) time threshold exceeded in the evaluation flag corresponding to the measured value (S1206), and if not exceeded, it is measured in the evaluation flag corresponding to the measured value. The value is stored as normal in the storage unit 102 (S1207). The processing (S720) ends with the above contents, and the subsequent parts are the same as those in FIG.

(Embodiment 3)
A third embodiment of the present invention will be described. In the third embodiment, a threshold value is set in accordance with measurement conditions for evaluating a measurement value of a biological signal, here, whether it is before a meal, or a time difference from a meal time to a measurement time if it is after a meal, The operation of the process for evaluating the measured value of the biological signal by comparing with the corresponding threshold value will be described.

  The configuration diagram of the biological signal measurement value evaluation system according to the third embodiment of the present invention is the same as FIG. Further, the flow of processing in the biological signal measurement value evaluation system according to the third embodiment of the present invention is the same as that in FIG.

  In the biological signal measurement value evaluation system described above, the threshold value setting process (S203) will be described in further detail with reference to FIGS. 3 and 13, and then the measurement value evaluation process (S204) will be described with reference to FIGS. The details will be described. Hereinafter, the measurement target biological signal will be described more specifically as a blood glucose level. However, the biological signal is not limited to the blood glucose level, and the biological signal measurement evaluation system of the present invention can be applied to the measurement values of other biological signals.

  The flow of the threshold setting process is partially the same as that in FIG. 3, and the description of the same part is omitted, and the process of the different part (S320) will be described. FIG. 13 shows a threshold setting screen according to the third embodiment of the present invention. First, the evaluator inputs a set value into the input box 1303 via the input unit 103 for the maximum post-meal reference time (Nw) for the post-meal measurement value of the biological signal.

  Next, a set value is input in the input box 1304 for the threshold setting time interval w. With the above settings, the threshold value that can be set for the postprandial measurement value is expressed as a postprandial threshold setting number N, and there is a relationship of (maximum postprandial reference time Nw) / (threshold setting time interval w). At this time, if the post-meal threshold setting number changes, the display of the threshold setting screen is updated via the display unit 104. Here, (w) time will be described as an example of the threshold setting time interval. When the threshold setting time interval w is not input, only one threshold is set for the postprandial measurement value.

  Next, the evaluator inputs the upper limit value TH_B for the pre-meal measurement value of the biological signal into the input box 1305 via the input unit 103, and then the time difference between the measurement time of the biological signal and the meal time is 0 after eating. Enter an upper limit value for the threshold from the time above to less than (w) after meal into the input box 1306. More generally, the time difference between the measurement time of the biological signal and the meal time is greater than (nw) hours after meal The upper limit value TH_A (n) with respect to the threshold value from (n + 1) w to less than (n) after meal is input to the input box 1307, and the time difference between the measurement time of the biological signal and the meal time is calculated after ((N-1) w) An upper limit value TH_A (N-1) for a threshold from the time more than the time to less than the time after the meal (Nw) is input to the input box 1308.

  Next, the evaluator inputs the lower limit value for the measurement value into the input box 1309 via the input unit 103. The process S320 ends with the above contents, and the subsequent parts are the same as in FIG. Although only the upper limit value has been described here, the lower limit value is naturally applicable, but the description is omitted.

  The flow of the measurement value evaluation process is partly the same as that in FIG. 7, and the description of the same part is omitted, and the process of the different part (S720) will be described. The flow of this process (S720) is shown in FIG. First, the control unit 101 determines a measurement condition for the measurement value of the biological signal, that is, whether the measurement is before or after a meal (S1401). Here, the measurement condition for the measurement value and the meal time are input simultaneously with the measurement value via the input unit 103 and are stored in the storage unit 102.

  In another example, in the case of a blood glucose meter, after the measurer measures the blood glucose level with the blood glucose meter, the measurer inputs to the blood glucose meter whether or not to give a postprandial mark for the measurement. There is a function of storing a post-meal mark for the measurement in the storage unit. By referring to this post-meal mark, it can be determined whether the measurement condition is before or after the meal.

  If the measurement condition is after meal, the control unit 101 reads the meal time and the measurement time from the storage unit 102 (S1402), and calculates the time difference from the meal time to the measurement time. Here, the case where the set time interval is (w) time will be described.

  That is, when the time difference from the meal time immediately before the measurement to the measurement time is less than (0) hours after the measurement time, the threshold TH_A0 corresponding to the time difference is read (S1202). In general, when the time difference is less than (nw) hours after (nw) time, the threshold value TH_A (n) corresponding to the measurement time is read (S1405). However, n satisfies the relationship of 0 ≦ n <N.

  Next, the control unit 101 compares the measured value with the threshold value TH_A (n) and determines whether or not it exceeds (S1409). That is, if it has exceeded, it is stored in the storage unit 102 as (nw) time threshold exceeded in the evaluation flag corresponding to the measured value (S1410), and if not exceeded, it is measured in the evaluation flag corresponding to the measured value. The value is stored as normal in the storage unit 102 (S1409).

  Also, if the measurement condition is before meals, or if the measurement condition is after meals but the time difference between the meal time and the measurement time is equal to or greater than (Nw) hours, the measured value is compared with the pre-meal threshold TH_B to determine whether If it exceeds (S1406), the pre-meal threshold value is stored in the evaluation flag corresponding to the measured value (S1407), and if not exceeded, the measured value is stored as normal in the evaluation flag corresponding to the measured value. Stored in the unit 102. The processing (S720) ends with the above contents, and the subsequent parts are the same as those in FIG. Although only the upper limit value has been described here, the lower limit value is naturally applicable.

  As described above, the measurement value of the biological signal can be evaluated more accurately by being able to set different threshold values according to the measurement conditions of the biological signal, that is, before meal, after meal, and further according to the measurement time of the biological signal, and Since it is possible to reduce the work of the evaluator who evaluates the measurement value of the biological signal, it is useful as a biological signal measurement value evaluation system to be introduced into a medical institution. Moreover, if this system is introduced into a biological signal monitor, it is useful as a system in which the measurer himself / herself evaluates the measured value of his / her biological signal without going through an evaluator of a medical institution.

Configuration diagram of biological signal measurement value evaluation system according to Embodiment 1 of the present invention Operation flow diagram of biological signal measurement value evaluation system in Embodiment 1 of the present invention Threshold setting processing flowchart of the biological signal measurement value evaluation system in Embodiment 1 of the present invention The figure which shows the threshold value setting screen of the biosignal measurement evaluation system in Embodiment 1 of this invention. Storage format explanatory drawing of the threshold value setting value of the biological signal measurement value evaluation system in Embodiment 1 of the present invention The figure which shows an example of the threshold value setting of the biological signal measured value evaluation system in Embodiment 1 of this invention. Measured value evaluation processing flowchart of the biological signal measured value evaluation system in Embodiment 1 of the present invention The figure which shows an example of the measurement result data of the biosignal measured value evaluation system in Embodiment 1 of this invention. The figure which shows the measurement result screen of the biosignal measurement evaluation system in Embodiment 1 of this invention. The figure which shows the threshold value setting screen of the biosignal measurement evaluation system in Embodiment 2 of this invention. Threshold setting processing flowchart of the biological signal measurement evaluation system in Embodiment 2 of the present invention Flowchart of measurement value evaluation processing of biological signal measurement evaluation system in Embodiment 2 of the present invention The figure which shows the threshold value setting screen of the biosignal measurement evaluation system in Embodiment 3 of this invention. Flowchart of measurement value evaluation processing of biological signal measurement evaluation system in Embodiment 3 of the present invention Configuration diagram of conventional biological signal measurement value evaluation system

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Control part 102 Storage part 103 Input part 104 Display part 401,901 Measurer selection list 402,902 Measurement item selection list 403,1305 Upper limit input box for pre-meal measurement value 404, 1306, 1307, 1308 Upper limit value for post-meal measurement value Input box 405, 1004, 1309 Lower limit input box 406 Setting save button 407, 908 Cancel button 501 Threshold setting table 903 Measurement value graph 904 Upper limit graph for post-meal measurement value 905 Upper limit graph for pre-meal measurement value 906 Lower limit graph 907 Threshold value Excess measurement value 1003 Upper limit value input box 1005, 1304 Setting time interval input box 1006 Upper limit value / lower limit value interlocking setting check box 1007 Upper limit value setting pointer 1008 Lower limit value setting pointer 1010 Upper limit graph 1012 Lower limit graph 1303 Maximum post-meal reference time input box

Claims (11)

It consists of at least an input unit, a data processing unit, and an output unit,
The input unit has a function of inputting a measurement value of a biological signal,
The data processing unit includes a threshold setting unit and a measurement value evaluation unit,
The threshold setting means has a function of setting two or more thresholds as a threshold for the measurement value according to measurement conditions of the measurement value,
The measurement value evaluation means has a function of assigning a measurement value evaluation flag for the measurement value by comparing the measurement value with the threshold value,
The biological signal measurement value evaluation system, wherein the output unit has a function of outputting the measurement value evaluation flag. 2. The biological signal measurement value evaluation system according to claim 1, wherein the measurement condition is that the measurement time of the measurement value is within a predetermined time after the meal time or other than the predetermined time after the meal time. 2. The biological signal measurement value evaluation system according to claim 1, wherein the measurement condition is whether the measurement time is during sleep or other than during sleep. 2. The biological signal measurement value evaluation system according to claim 1, wherein the measurement condition is whether the measurement time of the measurement value is during exercise or other than during exercise. 2. The biological signal measurement value evaluation system according to claim 1, wherein the measurement condition is that the measurement time of the measurement value is within a predetermined time or other than the predetermined time. 2. The biological signal measurement value evaluation system according to claim 1, wherein the measurement condition is that a time difference between the measurement time of the measurement value and the meal time immediately before the measurement time is within a predetermined time or other than the predetermined time. The biological signal measurement value evaluation system according to claim 1, wherein the measurement condition is that a time difference between a measurement time of the measurement value and a wake-up time immediately before the measurement time is within a predetermined time or other than the predetermined time. The threshold setting means sets two or more thresholds as a threshold for a measurement value according to the measurement condition of the measurement value, and sets an upper threshold and a lower threshold as the threshold, and calculates a difference between the upper threshold and the lower threshold. The biological signal measurement value evaluation system according to claim 1, further comprising a function of setting the threshold value while maintaining a constant value. 8. The threshold value setting means has a function of setting two or more threshold values as a threshold value for a measurement value according to a measurement condition of the measurement value, and setting the interval of the predetermined time. Biological signal measurement value evaluation system. The threshold value setting means sets the two or more threshold values depending on whether the time difference between the measurement time of the measurement value and the meal time immediately before the measurement time is a predetermined time or other than the predetermined time as a threshold for the measurement value. The biological signal measurement value evaluation system according to claim 6, further comprising a function of setting a maximum value of the time difference for setting a threshold value. The threshold value setting means sets the two or more threshold values as a threshold value for the measurement value depending on whether the time difference between the measurement time of the measurement value and the wake-up time immediately before the measurement time is a predetermined time or other than the predetermined time. The biological signal measurement value evaluation system according to claim 6, further comprising a function of setting a maximum value of the time difference for setting a threshold value.

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