WO2006009199A1 - 血糖値管理システム - Google Patents
血糖値管理システム Download PDFInfo
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- WO2006009199A1 WO2006009199A1 PCT/JP2005/013371 JP2005013371W WO2006009199A1 WO 2006009199 A1 WO2006009199 A1 WO 2006009199A1 JP 2005013371 W JP2005013371 W JP 2005013371W WO 2006009199 A1 WO2006009199 A1 WO 2006009199A1
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- blood glucose
- glucose level
- measurement
- display device
- data
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1468—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
- A61B5/1486—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
- G16H20/30—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
- G16H40/63—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices for local operation
Definitions
- the present invention relates to a blood glucose level measurement system capable of measuring blood glucose levels of diabetic patients and managing blood glucose level measurement data so that it can be easily used by diabetic patients and doctors.
- Diabetes is a metabolic disorder characterized by hyperglycemia caused by insufficiency of insulin secretion or its lack of action.
- type 1 insulin-dependent, partly slowly progressive starting from insulin-independent
- type 2 non-insulin dependent
- type 2 diabetes is classified as obese, characterized by hyperinsulinemia, insulin resistance (insulin dysfunction), non-obese, characterized by impaired insulin secretion, and those with both disorders. Is done.
- V and blood glucose measurement values such as blood pressure and blood glucose levels, exercise, etc. It is necessary to know the amount of energy consumed and the intake of food. In particular, the management of the timing and intake of meals, the management of the timing of blood glucose measurement, the management of changes in blood glucose levels, the prediction of future blood glucose levels, and the grasp of the amount of energy by nutrients to be corrected. It is also required to do exactly.
- Patent Document 1 exercise therapy and diet therapy are effective.
- a mobile terminal for health self-management and a self-management support system for health that support and reduce the burden on patients have been proposed.
- blood glucose level data is transmitted to a hospital computer via a mobile phone, and the corresponding prescription is automatically transmitted to the patient's mobile phone based on the transmitted measured blood glucose level data.
- a health management system is disclosed.
- Patent Document 1 seems to be large in size and unsuitable for carrying, and has the main purpose of managing the amount of energy by nutrient contained in foodstuffs. If you measure and manage the values and make the patient easily recognize the results, you have the function.
- Patent Document 2 seems to be large and unsuitable for carrying, and only prescriptions are sent from the computer to the patient's mobile phone, and blood glucose levels are measured and managed. Therefore, patients cannot easily and easily use the results for exercise therapy and diet therapy.
- a device including a measurement unit, a data storage unit, a time management unit, and a display unit for displaying necessary information (numerical value, time, etc.) is known. Can only display the blood glucose level after the measurement is completed, or display the blood glucose level measured in the past, along with the date and time of measurement. I could't make the best use of it.
- Patent Document 1 JP 2002-222263 A
- Patent Document 2 Japanese Patent Laid-Open No. 2003-180637
- an object of the present invention is to manage the timing of blood sugar level measurement, blood sugar in order to assist dietary therapy and exercise therapy for diabetic patients, regardless of type 1 and type 2, to be efficient.
- the purpose is to provide a simple blood glucose level measurement system that can accurately and easily manage changes in values, predict future blood glucose levels, and manage the timing and amount of intake of meals.
- the present invention that solves the above-mentioned problems is a blood glucose level that is easier to use for diabetics by using an external blood glucose level processing device in combination with a portable blood glucose meter having a conventional configuration.
- the blood glucose level measurement system according to the present invention is a combination of a blood glucose level measurement device and a blood glucose level processing device, and is connected via the former first interface unit and the latter second interface unit. It is possible, and at least one of the measurement data, the result of the process, and the result of the arithmetic process can be transmitted / received and displayed.
- the blood glucose level measurement apparatus includes a blood glucose measurement unit for measuring a blood glucose level of a subject, a measurement data storage unit that accumulates the measured blood glucose level as measurement data, and pre-measurement control data that preprocesses the measurement data.
- a processing unit a first display device that displays a result of preprocessing; a first display device control unit that controls the first display device; a time management unit that manages the measurement timing of the blood glucose level; Measurement unit, measurement data storage unit, measurement data pre-processing unit,
- 1 display device a control switch for controlling the first display device control unit and the time management unit, and a first interface unit.
- the blood glucose level processing device includes a data calculation processing unit that performs calculation processing on measurement data or external data from the measurement control data preprocessing unit, a second display device that displays a result of the calculation processing, A second display device control unit for controlling the second display device; and a second interface unit.
- the present invention also relates to a blood sugar level measuring device and a blood sugar level processing device used for the blood sugar level measuring system.
- the data calculation processing unit has means for creating a graph in which the measured blood sugar value is plotted against time based on the measurement data, and the second display device displays the graph. It is preferable to have a means.
- the data calculation processing unit has means for creating a graph in which the measured blood glucose level is plotted with respect to the time immediately after the start of intake of breakfast, lunch or dinner based on the measurement data,
- the two display devices have means for displaying the graph.
- the data operation processing unit changes the time period by the control switch. It is preferable to have a period changing means.
- the measurement data storage unit has means for changing the storage period of the measurement data.
- the second display device has means for plotting the target blood glucose level on the graph in cooperation with the data calculation processing unit.
- the data calculation processing unit plots the measured blood glucose level against time based on the measurement data, and a smooth blood glucose spline curve (a smoothed sphffin approximated curve of time variation of blood glucose level: approximated
- the second display device has means for displaying the smoothed blood glucose spline curve on the graph.
- the data calculation processing unit substitutes the measurement data into a high-order approximation function, thereby obtaining a target blood glucose response curve indicating a target blood glucose level with respect to time (time variation curve of a target blood glucose level: care
- the second display device has a means for displaying the target blood glucose response curve.
- the measurement data to be substituted has at least three measured blood glucose levels including a blood glucose level at the start of a meal and a blood glucose level after the lapse of 2 hours.
- the measurement data to be substituted includes the blood glucose level at the start of the meal, the peak blood glucose level, the time until the peak blood glucose level is obtained at the start of the meal, and 2 hours after the start of the meal. I prefer to have a blood sugar level.
- the measurement data to be substituted may include blood glucose level at the start of meal, blood glucose level after 1 hour from the start of meal, and blood glucose level after 2 hours from the start of meal.
- the data calculation processing unit has means for creating a target blood glucose response curve indicating a target blood glucose level with respect to time by substituting measurement data accumulated in a past fixed period into a higher-order approximation function, It is preferable that the second display device has means for displaying the target blood glucose response curve.
- the external data includes a target blood glucose level set by a doctor.
- the data calculation processing unit has means for creating a target blood glucose response curve indicating a target blood glucose level with respect to time by substituting the external data into a higher-order approximation function, and the second display device It is preferable to have a means for displaying a response curve.
- the data calculation processing unit includes means for calculating a predicted blood glucose level after a predetermined time has elapsed from the measurement data accumulated in a past fixed period or the latest measurement data, and the second display device Preferably has means for displaying the predicted blood glucose level.
- the first display device preferably includes a timing input switch for inputting the measurement timing until the measurement timing or the measurement timing in cooperation with the time management unit. It is preferable to have means for displaying the time.
- the first display device and the Z or second display device have means for blinking or displaying the latest measured blood glucose level as a predetermined mark shape. It is preferable to have a means for scrolling horizontally or vertically. Furthermore, it is preferable that the first display device and the Z or second display device have means for inverting the display content.
- the blood glucose level measurement system is configured by a combination of a blood glucose level measurement device and a blood glucose level processing device.
- the blood glucose level can be managed by the blood glucose level measurement device as before, and by connecting this to an external blood glucose level processing device, the measurement timing of the blood glucose level, the transition of the blood glucose level, Predicting future blood sugar levels, managing the timing and intake of meals, and accurately and hurt. Therefore, it is very effective in assisting diet and exercise therapy for diabetics.
- FIG. 1 is a block diagram showing a configuration of a blood sugar level measuring system according to the present invention.
- FIG. 2 is a block diagram showing a configuration of a conventional blood sugar level measuring apparatus.
- FIG. 3 is an example of a graph created by the data calculation processing unit 11 based on measurement data.
- FIG. 4 is another example of a graph created by the data calculation processing unit 11 based on measurement data.
- FIG. 5 Another example of a graph created by the data calculation processing unit 11 based on measurement data!
- FIG. 6 is still another example of a graph created by the data calculation processing unit 11 based on measurement data.
- FIG. 7 is a graph including a target blood glucose response curve showing the time and blood glucose level obtained by a predetermined higher-order approximation function.
- FIG. 8 is a graph including another target blood glucose response curve showing the time and blood glucose level obtained by a predetermined higher-order approximation function.
- FIG. 9 is a diagram showing a state in which a target blood glucose response curve is input with a pen 11 on a display device of an external data input device.
- FIG. 10 is a schematic diagram showing an embodiment of a blood sugar level management system according to the present invention.
- FIG. 11 is a diagram showing another embodiment of the blood sugar level management system according to the present invention.
- FIG. 12 is a schematic view showing still another embodiment of the blood sugar level management system according to the present invention.
- FIG. 13 is a schematic diagram showing still another embodiment of the blood sugar level management system according to the present invention.
- FIG. 1 is a schematic diagram of a blood sugar level measuring system according to the present invention.
- the blood sugar level measuring system according to the present invention includes a blood sugar level measuring apparatus A and a blood sugar level processing apparatus B.
- the blood glucose level measuring device A has a small and portable shape and size having a blood glucose measuring unit 1 for measuring a blood glucose level by inserting a biosensor (not shown), and is a measurement for storing measurement data.
- the data storage unit 2 includes a time management unit 6 that manages time control and measurement time of the measurement protocol, and a control switch 7 that controls the measurement unit 1, the measurement data storage unit 2, and the time management unit 6. Then, the blood glucose measurement unit 1, the measurement data storage unit 2, the time management unit 6, and the control switch 7 are controlled by the measurement control data preprocessing unit 3. Necessary information such as the measurement result and time is displayed on the first display device 4 while being controlled by the first display device control unit 5.
- the blood sugar level measurement system is configured as a combination with a blood sugar level processing apparatus B used in connection with the blood sugar level measuring apparatus A having the same function as the conventional one, and the measured blood sugar level A smooth blood glucose response curve based on the target blood glucose response curve or a target blood glucose response curve based on the target blood glucose level can be displayed.
- the blood glucose level processing device B is, for example, a second display device 12, a second display device control unit 13 which may be a personal digital assistant (PDA), a mopile personal computer, a mobile phone, or the like.
- a data operation processing unit 11 capable of capturing external data relating to blood glucose level
- a second interface unit 14 connected to the first interface unit 8 of the blood glucose level measuring apparatus A.
- the blood glucose level processing device B can perform various arithmetic processing on the blood glucose level to obtain statistical data, etc., and display it on the blood glucose level measuring device A, which can be used for exercise therapy and diet therapy for the subject. is there.
- FIG. 2 shows a configuration of a conventional blood sugar level measuring apparatus.
- a conventional blood glucose level measuring apparatus includes a blood glucose measurement unit 51 that measures a blood glucose level by inserting a noise sensor (not shown), a measurement data accumulation unit 52 that accumulates measurement data, and a time control and measurement time of a measurement protocol. And a control switch 57 that controls the blood glucose measurement unit 51, the measurement data storage unit 52, and the time management unit 56. Then, the blood glucose measurement unit 51, the measurement data storage unit 52, the time management unit 56, and the control switch 57 are controlled by the measurement control unit 53. Necessary information such as measurement results and time is not controlled by the display device controller 55. Force Displayed on display 54. However, only the blood glucose level as the character information and the measurement date and time are controlled by the display device control unit 55 and displayed on the display device 54.
- the blood glucose level measurement system includes a first interface unit 8 and a second interface, as shown in FIG. 1, which includes a blood glucose level measurement device A and a blood glucose level processing device B. It can be connected via the interface unit 14, and as described above, various information can be provided to the subject using the blood glucose level measurement data and the external data.
- a first interface unit 8 and a second interface as shown in FIG. 1, which includes a blood glucose level measurement device A and a blood glucose level processing device B. It can be connected via the interface unit 14, and as described above, various information can be provided to the subject using the blood glucose level measurement data and the external data.
- the blood glucose measurement unit 1 is a part for measuring the blood glucose level of a subject (patient) using a noise sensor or the like.
- this biosensor one that has been used in the past for measuring blood glucose levels can be used.
- the biosensor described in the publication forms an electrode system composed of a working electrode, a counter electrode, and a reference electrode on an insulating substrate by a method such as screen printing, and is in contact with the electrode system to form a hydrophilic polymer and an oxidoreductase. This is produced by forming an enzyme reaction layer containing (glucosoxidase) and an electron acceptor.
- the measurement data storage unit 2 displays the measured blood glucose level (measurement data) obtained by the blood glucose measurement unit 1, the smooth blood glucose response curve calculated by the blood glucose level processing device B, the target blood glucose level, and the like. accumulate. Therefore, the measurement data storage unit 2 can use a readable Z-writable storage medium such as a semiconductor memory.
- the first display device 4 in the blood glucose level measuring device A can be the first display as long as it can display the current or past blood glucose level and the date and time thereof as character information, as in the prior art. It is controlled by the device controller 5.
- the first display device 4 is a normal liquid crystal A display device may be used.
- the first display device control unit 5 controls the first display device 4 to select and blink a specific part such as the latest measured blood glucose level or display it with a predetermined mark. For example, it is effective to scroll the display contents such as the graph displayed on the display device 4 in the horizontal direction (or vertical direction) or to rotate (invert) 180 degrees.
- a specific part such as the latest measured blood glucose level or display it with a predetermined mark.
- it is effective to scroll the display contents such as the graph displayed on the display device 4 in the horizontal direction (or vertical direction) or to rotate (invert) 180 degrees.
- an image signal processing IC or the like can be used as the first display device controller 5.
- the time management unit 6 that manages the measurement timing of the blood glucose level by the blood glucose measurement unit 1 calculates and manages the measurement timing in cooperation with the measurement control data preprocessing unit 3, and the first display device 4 In cooperation, it plays a role of alerting and notifying the patient of the measurement timing.
- a clock including a crystal oscillator may be used!
- the control switch 7 controls the measurement unit 1, the measurement data storage unit 2, the measurement control data preprocessing unit 3, the first display device 4, the first display device control unit 5, and the time management unit 6. This is a switch.
- patients and doctors can use this control switch to measure blood glucose levels using the blood glucose measurement unit 1, select measurement data to be stored in the measurement data storage unit 2 (for example, measurement data for a certain period in the past), and perform measurement.
- the measurement data to be sent from the control data preprocessing unit 3 to the blood glucose level processing device B for processing is selected.
- information on a target blood glucose level and a smooth blood glucose response curve received from the blood glucose level processing device B and displayed on the first display device is selected.
- control switch 7 is preferably provided with a timing input switch for inputting measurement timing. This is used by diabetics to input the meal start time into the blood glucose meter. It is also possible to measure the blood glucose level immediately before a meal and enter this as the meal start time.
- an output unit 9 that emits at least one selected from the group consisting of sound, vibration, and light is connected to the first display device control unit 5, and the first display device control unit 5 is connected to the output unit. It is preferable to provide means for controlling the above. That is, the latest measured blood glucose level or predicted blood glucose level may be output by voice. According to this, it is possible to make the patient know the measurement timing of the blood glucose level after a meal. This measurement timing is only for the time when blood glucose level after meal should be measured. For example, it may be set to 5 minutes before the time to be measured. Also, let the time management unit 6 manage it and generate at least one of sound, vibration, and light at a predetermined time, for example, every two hours.
- the first interface unit 8 includes a connection terminal unit and an interface circuit unit.
- the first interface unit 8 connects the blood glucose level measuring apparatus A and the blood glucose level processing apparatus B, and exchanges data with the outside. belongs to. For example, it may be connectable by USB or the like.
- the blood glucose level processing device B includes the second display device 12 and the second display device control unit.
- PDA Personal Digital Assistance
- PC Personal Computer
- the data calculation processing unit 11 in the blood glucose level processing apparatus B plays the most characteristic role in the blood glucose level measurement system according to the present invention, and particularly has a characteristic in its calculation processing method.
- the data arithmetic processing unit 11 performs arithmetic processing on the measurement data from the blood glucose level measuring apparatus A and Z or external data, and creates (maps) a force graph such as the result of the arithmetic processing. Is possible. Second, it is also possible to calculate future target blood glucose levels, predicted blood glucose levels, measurement timing, etc. from measured data and external data.
- the functions of the data operation processing unit 11 will be described in detail below.
- the data operation processing unit 11 stores and executes programs, applications, and the like that implement various functions described in this specification. You can use a microprocessor that includes a CPU and memory.
- the second display device 12 in the blood glucose level processing device B displays not only the current or past blood glucose level and its date and time as character information, but also a later-described dull or the like as in the conventional case. And is controlled by the second display device control unit 13.
- the second display device control unit 13 controls the second display device 12 to select and blink a specific part such as the latest measured blood sugar value or display it with a predetermined mark. Scroll the display contents such as the graph displayed on display device 4 horizontally (or vertically). It is also effective to exert a function to rotate or rotate (reverse) 180 degrees.
- an image signal processing IC or the like can be used similarly to the first display device control unit.
- the second display device 12 includes a calculation processing result in the data calculation processing unit 11, a graph showing the result, external data including blood glucose target values, an average value of external data and measurement data, an external data power
- the obtained target blood glucose response curve, smoothed blood glucose response curve obtained from the measurement data, predicted blood glucose level, measurement timing, etc. are displayed. This makes it possible for patients and doctors to make comparisons with external data, etc., so that blood glucose level measurement data can be grasped from various points of view, which can be used for diabetes diet therapy and exercise therapy. It becomes possible.
- a normal liquid crystal display device may be used as the second display device 12.
- the second interface unit 14 is composed of a connection terminal unit and an interface circuit unit.
- external data set by a doctor or the like can be input to the data calculation processing unit 11, and the external data can be stored.
- This external data includes blood glucose measurement data from standard diet (calorie vs. blood glucose level), blood glucose measurement data from sales of diabetic diet (calorie vs. blood glucose level), target blood glucose level set by the doctor for patients, Accumulation of patient's past measurement data, calories burned, dietary calories, PFC ratio (protein, lipid to carbohydrate ratio), diet menu, heart rate suitable for exercise therapy, amount of exercise (steps), other diabetic patients need Various data are included.
- the data calculation processing unit 11 has a function as a means for creating a graph plotting the measured blood glucose level against time based on the measurement data sent from the blood glucose level measuring device A, It is preferable that this graph can be displayed on the second display device 12.
- Figure 3 shows an example of the graph created at this time.
- FIG. 3 is a graph obtained by plotting time on the horizontal axis and plotting the measured blood glucose level on the vertical axis based on the measurement data.
- the data calculation processing unit 11 creates a graph in which the measured blood glucose level is plotted against the time immediately after the start of intake of breakfast, lunch, or engulfment (at the start of the meal) based on the measurement data Or display a graph on the second display device 12. Preferably it is possible.
- FIG. 4 shows an example of the graph created at this time.
- FIG. 4 is a graph obtained by plotting the elapsed time from the start of breakfast intake (at the start of a meal) on the horizontal axis and the measured blood glucose level on the vertical axis based on the measurement data.
- the graph of the target response force indicating the target blood glucose level in which the data calculation processing unit 11 obtains the external data force incorporating the external force such as the target blood glucose level set for the patient by the doctor, for example. It is preferable to have a means or function for plotting. As a result, the patient can instantly confirm whether the current blood glucose level is good or not.
- Figure 5 shows an example of the graph created in this case. Based on the measured data, Figure 5 plots the elapsed time from the start of breakfast intake (at the start of meals) on the horizontal axis and plots the measured blood glucose level on the vertical axis. The target response curve is shown. Thus, the patient can check whether his blood glucose level is good against the elapsed time after starting the meal.
- the data calculation processing unit 11 obtains a high-order approximate function of the measured data force by smoothing processing using the least square method or the Gaussian kernel method, or smoothing processing using the moving median value, It has means or function for creating a smooth blood glucose response curve indicating the trend of the measured blood glucose level over time, and it is preferable that the second display device 12 displays the curve on a graph as shown in FIG. Better ,.
- Examples of the higher-order approximation function include aX 4 + bX 3 + cX 2 + dX + e.
- the period and number of measurement data used for smoothing and interpolation can be set arbitrarily.
- the data calculation processing unit 11 uses a linear interpolation method, a spline interpolation method, or a Lagrange interpolation method, for example, from the measurement data stored in the data storage unit 2 of the blood glucose level measuring apparatus A or the measurement data captured as external data. It is preferable that the second display device 12 has a means or a function for creating a target blood glucose response curve composed of a target blood glucose level with respect to the target blood glucose response curve. Examples of the higher-order approximation function include aX 4 + bX 3 + cX 2 + dX + e.
- FIGS. 7 and 8 are target blood glucose response curves showing the time and blood sugar values obtained by the spline interpolation method.
- the measurement data to be substituted preferably includes at least three measured blood glucose levels including blood glucose level P at the start of a meal and blood glucose level r after 2 hours from the start of the meal. More specifically, it is preferable to include the peak blood glucose level q in addition to the blood glucose levels p and r, and the time until the peak blood glucose level q is obtained.
- the measurement data used include blood glucose level s at the start of meal, blood glucose level t after 1 hour from the start of meal, blood glucose level after 2 hours from the start of meal. May contain the value u,.
- the peak blood glucose level must be measured because the burden on the patient for blood glucose level measurement can be reduced.
- the target blood glucose response force can be arbitrarily set with the pen 10 (or mouse).
- This data may be input to the blood glucose level measuring device for display.
- a doctor can create a target blood glucose response curve on the spot while explaining to the patient.
- FIG. 10 is a schematic diagram showing an embodiment of a blood sugar level management system according to the present invention.
- the biosensor 20 is inserted into the blood glucose level measuring device A of this blood glucose level management system, Based on a point indicating the measured blood glucose level (latest measurement data) on the second display device 12 of the value processing device B and the measurement data stored in the data storage unit 2, for example, for a certain period in the past, data calculation is performed.
- the target blood glucose response curve obtained by the spline interpolation method by the processing unit 11 is shown.
- the control switches 15a and 15b can also control the blood glucose level measuring apparatus A, select the type and period of measurement data used for arithmetic processing, and manually operate the measurement data.
- target blood glucose response curve can be created by the various methods described above, the target blood glucose response curve and the latest measurement data can be written together for use by the patient or doctor. .
- the horizontal axis is a time display starting from the start of a meal. This display can also be displayed separately for breakfast, lunch and dinner.
- the first display device 4 and the second display device 12 may display the predicted blood glucose level after two hours of the target blood glucose response curve force. Good.
- the blood glucose level measuring device A and the blood glucose level processing device B are connected via the first interface unit 8 and the second interface unit 14, respectively. It may function alone as a conventional blood glucose meter, and for example, it may have a function of calculating a predicted measurement value after 2 hours and counting down to the measurement time.
- the second display device 12 since it is difficult to see the measurement data for 24 hours, the second display device 12 must have a scroll function in the horizontal axis (arrow) direction so that it can display the measurement data for the specified 2 to 6 hours. You can
- FIG. 11 is a diagram showing another embodiment of the blood sugar level management system according to the present invention.
- a neurosensor 20 is inserted into the blood glucose level measuring device A, and the second display device 12 displays a point indicating the latest measured blood glucose level and the measurement data accumulated in a past certain period of time as a data calculation processing unit 11. Shows the smooth blood glucose response curve obtained by the least square method.
- the predicted blood glucose level after 2 hours from the smooth blood glucose response curve and the measured blood glucose level And the predicted blood glucose level is displayed. This mode is advantageous from the viewpoint that patient power and dual can be understood by goal management.
- the predicted blood glucose level after 2 hours can be obtained by calculating the inclination force of the smooth blood glucose response curve near a predetermined time.
- the difference between the maximum and minimum values of the smoothing response curve (arrow A) is compressed or expanded to obtain a modulation line (compression in Fig. 11), and the latest measured data is displayed on the modulation line.
- the predicted blood glucose level after 2 hours is calculated.
- the predicted blood glucose level here is a blood glucose level predicted at a predetermined time.
- the blood glucose level after 2 hours and the fasting blood glucose level before breakfast are calculated as 150 mg / dl and 110 OmgZdl, respectively. Can do.
- the display device 4 has a scroll function in the direction of the horizontal axis (arrow) so that the measurement data for 2 to 6 hours can be displayed.
- the blood glucose level measuring apparatus A can be controlled by the control switches 15a and 15b, the type and period of measurement data used for calculation processing can be selected, and measurement data can be manually input.
- the smooth blood glucose response curve can be created by the various methods described above. For the latest measured data and predicted blood glucose level, it is also possible to use blinking, mark change, etc. is there.
- FIG. 12 is a schematic diagram showing another embodiment of the blood sugar level management system according to the present invention.
- the biosensor 20 is inserted into the blood glucose level measuring device A of this blood glucose level management system, and the point indicating the measured blood glucose level (latest measurement data) is displayed on the second display device 12 of the blood glucose level processing device B.
- the target blood glucose response curve for the indicated target blood glucose level is shown.
- the blood glucose level measuring apparatus A can be controlled by the control switches 15a and 15b, the type and period of the measurement data used for the arithmetic processing can be selected, and the measurement data can be manually input.
- the target blood glucose response curve can be created by the various methods described above. It is possible to use it for patients and doctors by writing a powerful target blood glucose response curve together with the latest measurement data.
- the horizontal axis is a time display starting from the start of a meal. This display can also be displayed separately for breakfast, lunch and dinner.
- the target blood glucose level at a predetermined time after meal (after 1 hour 52 minutes in FIG. 12)
- the target blood glucose response curve force may also be calculated and displayed. This calculation method may be the same as in the case of the predicted blood glucose level after 2 hours in FIG. That is, even if the measurement cannot be performed at time X specified by the doctor and the measurement time is shifted by several minutes to several tens of minutes, the target blood glucose level at the predetermined time X is calculated from the target blood glucose response curve. Can be displayed.
- the blood glucose level measuring device A and the blood glucose level processing device B are the force blood glucose level measuring device connected via the first interface unit 8 and the second interface unit 14.
- A alone performs the same function as a conventional blood glucose meter, and may have, for example, a calculation of a predicted measurement value after 2 hours and a countdown function until the measurement time.
- the second display device 12 since it is difficult to see the measurement data for 24 hours, the second display device 12 must have a scroll function in the horizontal axis (arrow) direction so that it can display the measurement data for the specified 2 to 6 hours. You can
- FIG. 13 is a schematic diagram showing still another embodiment of the blood sugar level management system according to the present invention.
- the biosensor 20 is inserted into the blood glucose level measuring device A of this blood glucose level management system, and the point indicating the measured blood glucose level (latest measurement data) is displayed on the second display device 12 of the blood glucose level processing device B.
- the target blood glucose response curve for the indicated target blood glucose level is shown.
- the blood glucose level measuring apparatus A can be controlled by the control switches 15a and 15b, the type and period of the measurement data used for the arithmetic processing can be selected, and the measurement data can be manually input.
- the target blood glucose response curve can be created by the various methods described above, the target blood glucose response curve and the latest measurement data can be written together for use by the patient or doctor. .
- the horizontal axis is a time display starting from the start of a meal. This display can also be displayed separately for breakfast, lunch and dinner.
- the target blood glucose level at a predetermined time after meal (after 1 hour 52 minutes in FIG. 12)
- the target blood glucose response curve force may also be calculated and displayed. Note that this calculation method is the same as the predicted blood glucose level after 2 hours in Fig. 11.
- the blood glucose level measuring device A and the blood glucose level processing device B are connected via the first interface unit 8 and the second interface unit 14 such as a memory card throttle.
- the blood glucose level measuring apparatus A functions alone as a conventional blood glucose meter, and may have, for example, a predicted measurement value calculation after 2 hours and a countdown function until the measurement time.
- the second display device 12 since it is difficult to see the measurement data for 24 hours, the second display device 12 must have a scroll function in the horizontal axis (arrow) direction so that it can display the measurement data for the specified 2 to 6 hours. You can
- the blood glucose level management system manages blood glucose levels as described above, and relates blood glucose measurement data (calories vs. calories) from external data in association with the measurement data. Blood glucose level), blood glucose measurement data from sales of diabetic diets (calories vs. blood glucose level)
- Target blood glucose value the physician to set for the patient and, accumulation of past measurement data of the patient, calories, diet calorie, p FC ratio, Meals, heart rate appropriate to exercise therapy, other diabetics It may have a function to provide various necessary data to the patient. In addition, you may have a function to notify the timing of meals and exercise, and a function to notify the availability of meals and exercises! ⁇ .
- the data calculation processing unit 11 of the blood sugar level processing apparatus B can also perform data processing for reducing the number of blood sugar levels measured in one day.
- the number of measurements can be reduced seven times a day by data processing described later.
- the average blood glucose level of each month (first time point, second time point, third time point, fourth time point, fifth time point, sixth time point, and seventh time point) ( Hereinafter, it is referred to as “individual average value”.
- the number of measurements n in a month is preferably as many as possible, but may be, for example, about 4 to 13 days. In addition, it is preferable that the number of measurements n at the first to seventh time points in a month is the same.
- blood glucose levels are measured 11 times (day) at the 1st to 7th time points in October 2003, and individual average values are obtained.
- the individual average at the first time point (BB) in October 2003 is 104.2.
- the individual average values at the second to seventh time points are 134.0, 93.2 152.2 85.4, 156.4 and 99.4, respectively.
- the individual averages are obtained in the same way.
- measurements were taken for 9 months.
- a correlation coefficient between the 7-point average value and the individual average value is obtained.
- the correlation coefficient can be obtained by a method called Pearson's correlation coefficient (product moment correlation coefficient).
- the correlation coefficient at the first time point (BB) for 9 months is calculated as Pearson's correlation coefficient to be 0.6121. In the same way, the number of correlations at other times can be obtained. In the example in Table 1, the correlation coefficient at the sixth time point (AD) is the largest,
- the correlation coefficient at time 3 (BL) is minimal.
- the correlation coefficient obtained as described above the number of blood glucose measurement times per day is reduced. For example, it is preferable to use time points in descending order of correlation coefficient. Select the second candidate from the viewpoint of eliminating forgetting measurement according to your lifestyle.
- the second time point (AB), the fourth time point (AL), and the sixth time point (AD) are selected from the viewpoint that it is possible to control the content and quantity of meals. can do.
- the first time point (BB), the second time point (AB), the sixth time point (AD), and the seventh time point (BT) are determined. You can choose. From the viewpoint of a management index in general blood glucose level measurement, it is preferable to adopt the first time point (BB).
- the correlation coefficient of the combination of (BB, AB, AL, AD), the combination of (AB, AL, AD), and the combination of (BB, AD) is high.
- Tables 2 and 3 list the combinations from the top in descending order of the number of correlations! / Speak.
- the scatter plot is obtained by plotting the 7-point average value on the X-axis and the 4-point average value, 3-point average value, or 2-point average value on the y-axis, 7
- the correlation between the point average value and the 4-point average value, 3-point average value, or 2-point average value can be visually confirmed. If a straight line indicating an average (approximate straight line) is added to the scatter diagram, the degree of variation can be visually confirmed based on the deviation from the straight line.
- the blood glucose level measurement system can exhibit the same blood glucose level measurement function as a conventional blood glucose level measurement device, and can perform effective data management with the blood glucose level processing device. Therefore, for diabetics who exercise and diet in daily life away from medical institutions, manage the timing of food intake and intake, manage the timing of blood glucose measurement, and manage the transition of blood glucose levels In addition, it is possible to accurately and easily predict future blood glucose levels. Therefore, as the number of diabetic patients is increasing, doctors and medical institutions can use it suitably for diabetes treatment.
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US11/547,145 US20080045819A1 (en) | 2004-07-21 | 2005-07-21 | Blood-Sugar Level Management System |
JP2006529269A JPWO2006009199A1 (ja) | 2004-07-21 | 2005-07-21 | 血糖値管理システム |
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