WO2007123245A1 - 尿中1日排泄量測定方法及び尿中1日排泄量測定装置 - Google Patents
尿中1日排泄量測定方法及び尿中1日排泄量測定装置 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/493—Physical analysis of biological material of liquid biological material urine
Definitions
- the present invention relates to an apparatus and method for measuring the amount of urinary components excreted in urine and estimating the total amount of urinary components excreted per day.
- Urine testing is a test method that allows easy sample collection and non-invasive testing, and has been widely used for many years because there is no invasion such as pain during urine collection.
- Urine contains various components such as salt, sugar, and protein that vary in concentration depending on the living conditions and health status of the subject. If these components can be easily quantified at home, Useful for management. For example, excessive intake of salt is considered to be the cause of high blood pressure and stomach cancer, and management of the intake is required, but it is cumbersome and time-consuming to measure the total amount of salt in the food to be ingested. Is a powerful one. Therefore, a method has been proposed in which the amount of salt excreted in urine is measured and the amount of salt taken per day is managed (see, for example, Patent Document 1).
- FIG. 1 shows a conventional salt intake measuring device described in Patent Document 1.
- the salt intake measurement device of Fig. 1 the salt concentration in the first morning urine (the urine excreted the first time after waking up, hereinafter referred to as "night urine") measured by the sensor unit 41 is used. From the nighttime urine input from the input unit 42, the calculation unit calculates the amount of salt in the user's nighttime urine. Furthermore, the daily excretion salt amount is calculated from the regression equation stored in advance in the salt intake measuring device, and is digitally displayed on the display unit 43.
- the configuration shown in Fig. 1 is obtained by multiplying the salinity concentration in the nighttime urine by the nighttime urine amount to obtain the nighttime urinary salt amount, and based on the correlation between the salinity amount in the nighttime urine and the daily excretion salt amount The amount of salt excretion is determined (see Patent Document 1).
- Patent Document 1 Japanese Patent Laid-Open No. 2002-276662
- Non-patent document 1 Kotaro Yamamoto et al., “Study of methods for measuring salinity and potassium intake at home”, Japan Circulation Prevention Journal, Vol. 39, No. 3, p. 157-163, 2004
- Non-Patent Document 1 As described in Non-Patent Document 1, even if a method for estimating the daily urinary excretion during the nighttime urine force corrected by time (converting urine volume to 8 hours) is sufficiently corrected. There were cases where it was not.
- the present invention solves the above-described conventional problems, and a daily urinary excretion measurement method capable of measuring the daily excretion of urinary components with high accuracy and with ease, and the same
- the purpose is to provide a measuring device.
- the daily urinary excretion measurement method of the present invention is a method for measuring the daily urinary excretion by measuring the total amount of urinary components excreted in the urine of the day.
- the urinary component amount calculating means calculates the component amount contained in each spot urine, and the daily urine excretion calculating means includes a plurality of spot urine in the period And a daily urinary excretion amount that is the total amount of the components contained in urine in one day, and further, the correlation and the urinary component amount calculating means The multiple times calculated by The daily urinary excretion calculating means includes a daily urinary excretion calculating step of calculating the daily urinary excretion using the urinary component amount.
- the daily urinary excretion measuring apparatus of the present invention is a daily urinary excretion measuring apparatus that measures the total amount of urinary components excreted in the urine of the day, and for a predetermined period.
- spot urine excreted in the urine urine collected in one excretion
- multiple spot urine samples are collected, and multiple spot urine samples collected are used in each spot urine.
- Urinary component amount calculating means for calculating the amount of the contained component, the amount of the component contained in the spot urine multiple times within the period, and the total amount of the component contained in the urine of the day Maintains the correlation with the excretion amount, and further calculates the daily urinary excretion amount using the correlation and the multiple urine component amounts calculated by the urine component amount calculation means.
- a daily urinary excretion calculating means is a daily urinary excretion measuring apparatus that measures the total amount of urinary components excreted in the urine of the day, and for a predetermined period.
- the present invention can be realized as a method in which processing means constituting the device can be realized as a step, or can be realized as a program for causing a computer to execute the step, or the program can be recorded. It can be realized as a computer-readable recording medium such as a CD ROM, or as information, data or a signal indicating the program. These programs, information, data, and signals may be distributed via communication networks such as the Internet! /.
- the daily excretion of urinary components can be accurately and easily reduced with less effort (such as the number of measurements). It is possible to measure it.
- FIG. 1 is a diagram showing a conventional salt intake measurement device.
- FIG. 2 is a diagram showing a hardware configuration of a daily urinary excretion measurement apparatus according to an embodiment of the present invention.
- FIG. 3 is a functional block diagram of the main part of the daily urinary excretion measurement apparatus.
- FIG. 4 is a diagram showing the appearance of the daily urinary excretion measuring apparatus and a method for measuring urinary components using the daily urinary excretion measuring apparatus.
- FIG. 5 is a perspective view showing an appearance of a control panel portion of a control unit of the daily urinary excretion measuring apparatus.
- FIG. 6 is a flowchart showing a measurement control routine executed by the CPU of the daily urinary excretion measurement apparatus.
- FIG. 7 is a graph showing an example of a regression equation stored in the regression equation storage unit of the daily urinary excretion measurement apparatus.
- FIG. 8 shows the configuration of a daily urinary excretion measuring apparatus for correcting daily urinary excretion by correcting the nocturnal urinary salinity for 8 hours according to another embodiment of the present invention.
- Fig. 9 is a view showing an appearance of a control panel of the daily urinary excretion measuring apparatus.
- FIG. 10 is a block diagram showing a configuration of a daily urinary excretion measurement apparatus that creates a regression equation for each user according to still another embodiment of the present invention.
- FIG. 11 is a flowchart showing a processing flow when the daily urinary excretion measurement apparatus creates a regression equation for each user.
- FIG. 12 is a diagram illustrating a hardware configuration of the daily urinary excretion measurement apparatus according to the fourth embodiment.
- FIG. 13 is a functional block diagram of the main part of the daily urinary excretion measurement apparatus realized by the CPU and memory shown in FIG. 12.
- FIG. 14 is a graph showing the number of detected period differences when using the average value of a plurality of data including both nighttime urine and pre-sleeping urine.
- FIG. 15 is a graph showing the number of detected period differences when using the average value of a plurality of data obtained by measuring only night urine.
- FIG. 16 is a graph showing the number of detected period differences when using the average value of a plurality of data obtained by measuring only urine before bedtime.
- Creatun sensor 911 urinary component amount calculation unit, 713 1 urine excretion calculation unit, 715 urine component amount accumulation unit, 716 regression equation storage unit 417 Advice storage
- the daily urinary excretion measuring method of the present invention is a urinary daily excretion measuring method for measuring the total amount of urinary components excreted in the urine of the day, and within a predetermined period.
- the spot urine excreted urine collected in one excretion
- multiple spot urine samples are collected, and the urine component amount calculation means uses each spot urine sampled for each spot.
- a urine component amount calculating step for calculating a component amount contained in the urine, and a daily urinary excretion calculating means comprising: a component amount contained in a plurality of spot urines within the period; Holding the correlation with the urinary daily excretion amount, which is the total amount of the components contained therein, and further, the correlation and the urine component amount calculated by the urine component amount calculation means
- the daily urinary excretion calculating means calculates the daily urinary excretion using the urinary daily excretion calculating step. It is characterized by including
- the daily urinary excretion measuring apparatus of the present invention is a daily urinary excretion measuring apparatus that measures the total amount of urinary components excreted in the urine of the day, and for a predetermined period.
- spot urine excreted in the urine urine collected in one excretion
- multiple spot urine samples are collected, and multiple spot urine samples collected are used in each spot urine.
- Urinary component amount calculating means for calculating the amount of the contained component, the amount of the component contained in the spot urine multiple times within the period, and the total amount of the component contained in the urine of the day Maintains the correlation with the excretion amount, and further calculates the daily urinary excretion amount using the correlation and the multiple urine component amounts calculated by the urine component amount calculation means.
- a daily urinary excretion calculating means is a daily urinary excretion measuring apparatus that measures the total amount of urinary components excreted in the urine of the day, and for a predetermined period.
- Biological rhythm of excretion of urinary components in the time zone in which activities such as eating and exercise are performed and in the sleep time zone The system is different. Therefore, when estimating the daily excretion of urinary components, it is necessary to select a urine sample considering this biological rhythm.
- This urine sample can be selected by using the last urine of the day before bedtime as the urine sample during the time period in which power activity is performed appropriately depending on the measurement object, and the night urine as the urine sample during the sleep time period.
- the rhythm is taken into consideration. That alone is the last urine of the day before going to bed and the night urine, because it is at home for most people and is easy to sample, so it can be used more widely and generally. It becomes a measuring method.
- the method for measuring daily urinary excretion and the apparatus for measuring daily urinary excretion according to the present invention it is possible to control the daily excretion of urinary components with high accuracy and power easily by taking into account the biological rhythm. Measurements can be made.
- the daily urinary excretion measurement method of the present invention is the step of calculating the daily urinary excretion, wherein the daily urinary excretion calculation means is for two times collected within the period. It is preferable to use the amount of components contained in spot urine and calculate the daily urinary excretion of the components.
- the daily urinary excretion measurement method of the present invention is the urine component amount calculation step, wherein the urine component amount calculation means uses the plurality of spot urines excreted within 24 hours. It is preferable to calculate the amount of components in each spot urine.
- the daily urinary excretion measurement method of the present invention includes the urine component amount calculation step, wherein the urine component amount calculation means includes the component concentration in the spot urine measured by the component sensor, and the urine amount. It is preferable to calculate the component amount of the component contained in each spot urine using the urine amount measured by the sensor.
- the daily urinary excretion measurement method of the present invention is the urine component urine calculation step, wherein the urine component amount calculation means is the urine immediately before bedtime that is excreted and collected at the end before bedtime. And each night spot urine that is excreted and collected urine first after waking up after going to bed, calculating the amount of components in urine, and in the urinary daily excretion calculation step, The amount calculation means is calculated by the urine component amount calculation means from the correlation between the amount of urine components immediately before going to bed and the amount of urine components at night and the total amount of the urine components contained in the urine of the day.
- the daily urinary excretion amount of the component it is preferable to calculate the daily urinary excretion amount of the component by using the urine component amount immediately before going to bed and the night urine component amount calculated by the urine component amount calculating means. This As a result, the urine sample produced during both the time zone during which activity is performed and the time zone during which sleep is used is used, so that the amount of daily urinary excretion can be measured with very high accuracy.
- the input unit further includes an excretion time information receiving step for receiving information on the excretion time of the spot urine, and a urine component amount accumulating unit.
- a urine component amount accumulating step for accumulating the component amount in each spot urine calculated by the urine component amount calculating means in association with the excretion time information of the spot urine received by the input unit;
- the daily urinary excretion calculating means is based on the excretion time information accumulated and associated with the urinary component amount immediately before going to bed and the night urine component amount, respectively.
- Urinary urinary excretion calculation including an 8-hour correction step for correcting the nocturnal urinary component amount by converting the time from the excretion of urine immediately before bedtime to the excretion of night urine into 8 hours Steps to calculate daily urinary excretion
- the urinary component amount calculating means is based on the correlation between the sum of the urine component amount immediately before going to bed and the nocturnal urine component amount corrected for 8 hours and the total amount of the urine component contained in the urine in one day.
- the urinary component amount immediately before going to bed calculated by the method and the urinary component amount calculating means, and corrected by the daily urinary excretion calculating means in the 8-hour correction step. It is preferable to calculate the daily urinary excretion of the component using the component amount. In this way, more accurate daily urinary excretion can be measured by performing 8-hour correction of nocturnal urine.
- the daily urinary excretion measurement method of the present invention includes the component concentration in the spot urine measured by the component sensor in the urine component amount calculating step, and the component concentration in the spot urine measured by the component sensor.
- the creatine ratio of the urine component in the spot urine is calculated as the amount of the component contained in the spot urine from the creatine concentration in the spot urine measured by the creatun sensor, and the urine 1
- the daily urinary excretion amount calculating means complies with the creatine ratio that is the urinary component amount calculated by the urinary component amount calculating means and the urinary component. It is preferable to calculate the daily urinary excretion of the above components using the daily creatinine excretion retained in the amount calculating means.
- the daily urinary excretion measuring method of the present invention is the urinary daily excretion calculating step, wherein the daily urinary excretion calculating means is within the period by the urine component amount calculating means. It is preferable to calculate the daily urinary excretion using the calculated urine component amount in the spot urine 3 times or more and 14 times or less. In this way, using three or more times of data makes it possible to accurately grasp the average daily excretion of urinary components within a certain period.
- the urinary component amount calculating means collects spot urine excreted during 7 days. It is preferable to calculate the amount of urine components in spot urine 3 times or more and 14 times or less. If the above period exceeds 7 days, lifestyle may change drastically. By setting the period to be evaluated within 7 days, it is possible to obtain results that reflect the lifestyle of the user. Become.
- the daily urinary excretion measurement method of the present invention is the urinary component amount calculating step, wherein the urinary component amount calculating means is the same at least twice among the spot urine collected the number of times. It is preferable to calculate the amount of components in spot urine including a combination of urine before bedtime and nighttime urine sandwiching bedtime.
- urinary daily excretion is measured by using both urine samples in the active time zone and the sleeping time zone. Taking into account both biological rhythms, it is possible to obtain highly accurate daily urinary excretion measurements.
- the daily urinary excretion measurement method of the present invention is characterized in that, in the urine component amount calculation step, the urine component amount calculation means force is a spot urine in which the spot urine collected at all times is night urine. It is preferable to calculate the amount of urine components in the urine. According to this, since the nighttime urine is the first urination after getting up, the urine collection is effected so that the measurement can be easily continued.
- the daily urinary excretion measurement method of the present invention is the urine component amount calculation step, wherein the urine component amount calculation means is configured such that the spot urine collected at all times is a urine before bedtime. It is preferable to calculate the amount of urine components in a spot urine. If the user is a worker or housewife, a busy collection error may occur in the early morning, when collecting urine at night. Also, assuming home measurement, urine collection just before going to bed is easier to carry out.
- the urine component calculating means comprises a spot A component sensor that measures a component concentration in urine and a urine amount sensor that measures a urine amount of spot urine, and the urine component calculation means includes the component concentration measured by the component sensor and the urine It is preferable to calculate the urinary component amount in the spot urine from the urine amount measured by the amount sensor.
- the urine component calculation means includes a component sensor that measures a component concentration in spot urine and a talatinin sensor that measures a creatinine concentration in spot urine.
- the urinary component calculating means includes the component concentration measured by the component sensor and the creatinine concentration measured by the creatinine sensor as the urine component amount in the spot urine. It is preferable to calculate the creatine ratio of the urine component.
- the daily urinary excretion measuring apparatus of the present invention further includes the amount of each component in the plurality of spot urine calculated by the urinary component amount calculating means or the daily urinary excretion. It is preferable to include a display means for displaying the daily urinary excretion calculated by the quantity calculating means.
- the urine component amount calculating means sandwiches the urine immediately before bedtime, which is urine excreted and collected at the end before bedtime, and the bedtime.
- the amount of components in each spot urine is calculated from the night urine, which is excreted and collected urine first after waking up, and the daily urinary excretion measuring device further includes the urine component amount calculating means.
- measurement data and analysis data can be displayed, and the user's own daily excretion can be ascertained.
- a more functional urinary excretion estimation device for daily urinary excretion can be realized by displaying a data input screen, an output screen that displays measurement data and analysis data, and an instruction screen that displays measurement instructions. Can be provided.
- the daily urinary excretion measurement apparatus of the present invention is such that the component amount in each spot urine collected a plurality of times within the period is calculated by the urine component amount calculating means. It is preferable to provide display means for displaying the daily urinary excretion calculated by the daily urinary excretion calculating means. With this configuration, the specified number of measurements is completed. Until then, the measurement results are not shown, so it is possible to present more accurate results to the user.
- the daily urinary excretion measuring apparatus of the present invention further includes a reference amount receiving means for receiving an input of a reference amount of the total amount of the urinary components excreted in the urine on the 1st, The daily urinary excretion amount calculated by the daily urinary excretion calculating unit is compared with the reference amount received by the reference amount receiving unit, and the calculated daily urinary excretion amount is Comparing means for determining whether or not the reference amount is exceeded, and display means for displaying advice when the comparing means determines that the daily urinary excretion amount exceeds the reference amount are preferably provided. .
- the user can grasp his / her daily urinary excretion.
- health advice and messages can encourage self-management and acquire knowledge about the right health.
- the daily urinary excretion measurement apparatus of the present invention further collects spot urine and uses the timing for calculating the component amount of the urine component by the urine component amount calculation means to the user. It is preferable to provide measurement notification means for notification. With this configuration, if an excretion time that is highly correlated with the daily urinary salinity is set as the above timing, measurement with excretion time information that is highly correlated with the daily urinary salinity becomes easy. This leads to more accurate estimation of daily excretion.
- the daily urinary excretion measurement apparatus of the present invention further includes at least three days of the amount of the component in the urine immediately before going to bed, the amount of the component in the night urine, and the corresponding urine in the urine
- Correlation calculation means for calculating the correlation between the daily urinary excretion amount and the sum of the urinary component amount immediately before going to bed and the urinary urinary component amount by linear approximation from the daily urinary excretion amount. Is preferred.
- the daily urinary excretion measuring device represents the correlation between the sum of the urinary component amount immediately before bedtime and the nightly urine component amount and the total amount of the urinary component excreted in the urine on the 1st day.
- a regression equation can be calculated for each user, and the daily excretion can be calculated with higher accuracy.
- FIG. 2 is a diagram showing a hardware configuration of the daily urinary excretion measuring apparatus according to the present embodiment.
- the daily urinary excretion measuring device 100 is a device that measures the amount of urine excreted in a single urination and the amount of urinary components contained in the urine.
- the amount of urinary components immediately before going to bed which is the amount of urinary components contained in urine excreted at the end of the day, and urine excreted the first time after waking up (hereinafter referred to as “night urine”).
- night urine urine excreted the first time after waking up
- the control unit 2 includes a display unit 207, a CPU 211, a memory 215, a timing unit 216, a transmission unit 217, an input unit 218, and the like, and these units are connected to each other via a bus.
- the sensor 3 includes a urine volume sensor 301 and a salt sensor 302.
- the display unit 207 is configured by a liquid crystal display, but is not particularly limited as long as it displays measurement data and analysis data.
- the display unit 207 displays a data input screen, an output screen for displaying measurement data and analysis data, an instruction screen for displaying measurement instructions, and the like.
- the display unit 207 is “calculated by the urine component amount calculating unit by the urine component amount immediately before bedtime, the night urine component amount, or the daily urinary excretion calculating unit.
- the display means for displaying the daily urinary excretion amount the measured urine amount, the concentration of the urine component, the urine component amount, the calculated daily urinary excretion amount, and the like are displayed.
- the display unit 207 corresponds to “display means for displaying advice when the comparison means determines that the daily excretion amount in the urine exceeds the reference amount”, and the calculated daily urine content Display health advice based on excretion.
- a notification screen for notifying the user of the timing is displayed.
- the CPU 211 controls the entire control unit 2.
- the CPU 211 performs processing for measuring urine using each sensor according to a program stored in the ROM, processing for calculating the urinary salt concentration by multiplying the measured urinary salt concentration and urine volume, and from the urinary salt amount.
- Estimate daily urinary excretion Performs secondary processing of measurement data such as processing to be performed.
- the CPU 211 exchanges signals with an input unit 218 provided on the control panel and a touch panel or the like, thereby inputting instructions from the user and displaying each information on the display unit 207.
- the memory 215 includes a RAM, a ROM, an IC memory, a hard disk, and the like.
- a correlation between the sum of the amount of urine components contained in urine immediately before going to bed and the amount of urine components contained in night urine and the amount of excreted urine in the day is given in ROM or the like. I remember it.
- a readable / writable large-capacity memory 215 realized by a hard disk, an IC memory, etc., each time measurement is performed, the urine volume measured in association with the excretion time information, the concentration of urine components, and the urine components Measurement data such as quantity is accumulated.
- the timer 216 is a timer or the like, and detects excretion time information.
- the transmitting unit 217 transmits measurement results, health advice, and the like to an external personal computer, mobile phone, PDA, or the like registered in advance by the user through infrared communication or a mobile phone line.
- the input unit 218 is various buttons provided on the control unit 2, a touch panel provided on the display unit 207, or the like.
- the daily urinary excretion measurement apparatus 100 of this embodiment includes an input / output port and can be an external flexible disk drive connected to the input / output port or I.
- the urine volume sensor 301 measures the urine volume of urine inhaled into the sensor 3. Specifically, resistance measurement is used to measure urine volume. Using the fact that the resistance of the resistor in Sensor 3 immersed in the urine collection container (Beaker 1) varies depending on the urine volume, a calibration curve is created for the relationship between resistance and urine volume, and the resistance force also calculates the urine volume. To do. In other words, using the fact that the resistance of the resistor immersed to the bottom of the container (beaker 1) that accumulates the liquid changes with the liquid volume, a calibration curve of the relationship between the resistance and the liquid volume is created, and the urine is calculated from the resistance value. Calculate the amount. Make a calibration curve between the reciprocal of the voltage and the liquid volume with saline and apply it to the urine. The amount of urine obtained by this method is almost the same as that obtained by weighing with a balance.
- the salt sensor 302 measures the urinary salt concentration of the urine inhaled into the sensor 3.
- salt The sensor 302 measures the urinary salt concentration by an electrode method using a conductivity method.
- Conductivity measurement can be realized by measuring the impedance between predetermined terminals. Since there are no moving parts, the structure is simple and the operation reliability is high. Since the urinary conductivity largely depends on the sodium concentration, the correlation between the urinary sodium concentration and the electrical conductivity is also determined by obtaining a calibration curve, and two electrodes for measuring the conductivity.
- the concentration of sodium can be measured with an inexpensive sensor equipped with a sensor. When the salinity concentration is measured by conductivity, correction may be made to remove errors due to potassium or magnesium other than salinity.
- FIG. 3 is a functional block diagram of the main part of the daily urinary excretion measurement apparatus 100 realized by the CPU 211 and the memory 215 shown in FIG.
- the daily urinary excretion measuring apparatus 100 includes a urinary component amount calculating unit 411, a daily urinary excretion calculating unit 413, a urinary component amount accumulating unit 415, and a regression equation storing unit 416. And an advice storage unit 417.
- the daily urinary excretion measuring apparatus 100 is an apparatus for measuring the daily urinary excretion that measures the total amount of urinary components excreted in the urine of the day, and is within a predetermined period.
- spot urine excreted urine collected in one excretion
- collect multiple spot urine and use the collected multiple spot urine, and the amount of components contained in each spot urine
- Urinary component amount calculating means for calculating urinary component amount, component amount contained in spot urine multiple times within the period, and daily urinary excretion amount which is the total amount of the component contained in urine in one day And calculating the daily urinary excretion amount using the correlation and the urinary component amount calculation unit multiple times calculated by the urinary component amount calculating means.
- Urinary excretion calculating means comprising a urinary excretion calculating means.
- the urine component amount calculation unit 411 corresponds to “urine component amount calculation means” and corresponds to the regression equation power ⁇ correlation
- the regression equation storage unit 416 and the daily urinary excretion calculation unit 413 include Corresponds to “daily urinary excretion calculation means”.
- the daily urinary excretion measuring apparatus 100 further includes "a reference amount receiving means for receiving an input of a reference amount of the total amount of the urinary components excreted in the urine in one day, and the one day
- the urinary excretion amount is compared with the daily urinary excretion amount calculated by the calculating means and the reference amount received by the reference amount receiving means, and the calculated daily urinary excretion amount is the reference amount.
- the input unit 218 corresponds to the “reference amount acceptance means”
- the daily urinary excretion amount calculation part 413 corresponds to the “comparison means”
- the advice storage part 417 and the display part 207 correspond to the “display means”, respectively. To do.
- the urine component amount calculation unit 411 calculates the urinary salt amount contained in the urine from the urine amount input from the urine amount sensor 301 and the salt concentration input from the salt sensor 302. Further, the urine component amount calculation unit 411 receives the input urine amount and salt concentration, and the calculated urinary salt amount as input from the input unit 218 and the current measurement time obtained from the time measuring unit 216. It is stored in the urine component amount storage unit 415 in association with the excretion time information.
- the daily urinary excretion calculating unit 413 calculates the amount of salt contained in the urine immediately before going to bed from the urine component amount accumulating unit 415 when the urinary component amount calculating unit 411 calculates the urinary urinary salt amount. Read out the urine salinity immediately before going to bed and the nocturnal urinary salinity, which is the salinity contained in the nocturnal urine. Next, the daily urinary excretion calculation unit 413 substitutes the value of the sum of the read urinary salinity immediately before bedtime and the nocturnal urinary salinity into the regression equation stored in the regression equation storage unit 416. Therefore, the daily urinary excretion of the salt excreted in the user's daily urine is calculated.
- the daily urinary excretion amount calculation unit 413 reads out advice corresponding to the calculated daily urinary excretion amount from the advice storage unit 417 and causes the display unit 207 to display the advice. Further, the daily urinary excretion calculation unit 413 outputs information such as the calculated daily urinary excretion and advice corresponding thereto to the transmission unit 217 according to the instruction input from the input unit 218.
- the urine component amount accumulating unit 415 stores the current time of measurement stored, excretion time information, urine volume, salt concentration, urinary salt content, daily urinary excretion amount and daily urine every time urination is performed. Accumulate the difference between the amount of medium salt excretion and the standard amount.
- the regression equation storage unit 416 stores a pre-calculated regression equation representing the correlation between the sum of the urinary salt content immediately before going to bed and the urinary salt content at night and the daily urinary excretion of salt. .
- the advice storage unit 417 stores a standard amount of salinary daily urinary excretion, or health advice determined in advance corresponding to the deviation amount of the reference amount.
- FIG. 4 is a diagram showing the appearance of the daily urinary excretion measuring apparatus 100 shown in FIG. 2 and a method for measuring urinary components using the daily urinary excretion measuring apparatus 100.
- FIG. 5 is a perspective view showing an external appearance of the control panel portion of the control unit 2 of the daily urinary excretion measuring apparatus 100 shown in FIG.
- the sensor 3 is detachably connected to the control unit 2 at the connection portion 201 so that it can be replaced when worn out.
- a protrusion of the sensor 3 (not shown) can be fitted into the connection unit 201, and a terminal for electrically connecting the sensor 3 and the control unit 2 is disposed inside the connection unit 201.
- the control unit 2 includes a cursor left movement button 202, a cursor right movement button 203, a measurement start button 204, an excretion time information button 205, a measurement result transmission button 206, a display unit 207, and the like on the control panel.
- the cursor left movement button 202 and the cursor right movement button 203 are used to move the cursor leftward or rightward in order to select a desired selection candidate.
- the measurement start button 204 is a button for instructing the start of measurement of urine volume and urine component concentration by the sensor 3.
- the excretion time information button 205 is a button for the user to input time information associated with a sleeping act such as “immediately before going to bed” or “first time after waking up” at the time of measurement.
- the measurement result transmission button 206 is a mobile phone in which the measurement result of the sensor 3, the calculated daily urinary excretion, the health advice displayed on the display unit 207 according to the daily urinary excretion, etc. are registered in advance. This is a button for transmitting by the transmission unit 217 toward a computer or a personal computer.
- Fig. 2 to Fig. 6 show a method for measuring and analyzing the amount of salt excreted in urine collected at any time using this daily urinary excretion measuring device 100 and estimating the amount of salt excretion in urine. This will be explained with reference to.
- a dedicated container beaker 1
- the CPU 211 starts the measurement control routine, and urine measurement starts.
- FIG. 6 is a flowchart showing a measurement control routine executed by the CPU 211 shown in FIG.
- the CPU 211 When the measurement control routine is started, the CPU 211 inputs the measurement start time (current time at the time of measurement) detected by the time measuring unit 216 (step 311). At this time, the user inputs the excretion time information by pressing the excretion time information button 205 on the control panel.
- the CPU 211 executes urine measurement processing (step 312).
- the measurement process is performed by the salt sensor 302 and the urine volume sensor 301 provided in the sensor 3, respectively.
- the salt concentration and urine volume are detected after the conductivity measurement.
- the CPU 211 (the urine component amount calculation unit 411 in FIG. 3) multiplies the salt concentration by the urine amount to calculate the urinary salt amount.
- the urinary salt content is stored together with the excretion time information in the hard disk (the urine component storage unit 415 in FIG. 3).
- CPU 211 calculates daily urinary salt excretion based on the data stored in the hard disk (step 313). Further, the CPU 211 (the daily urinary excretion calculating unit 413 in FIG. 3) is configured to store the salt urinary excretion reference amount stored in advance in the hard disk (advice storing unit 417 in FIG. 3) and the calculated daily urinary salt excretion. The amount is compared with the amount, and the difference between the reference amount and force is calculated (step 314).
- the reference amount is recommended in advance by a medical institution or the like, and an average value may be used, or the user's own target value may be input to the control panel. Here, it is assumed that the user inputs a reference value by operating a button (input unit 218) on the control panel.
- the daily urinary salt excretion amount and the comparison result with the reference amount are stored in the hard disk together with the measurement date (step 315).
- the urinary salt amount, the daily urinary salt excretion amount, and the comparison result with the reference value are displayed on the display unit 207 of the control panel (step 316).
- the comparison result with the reference value may be displayed when the user presses a result display button (not shown).
- the health advice can be displayed together with the measurement result and the comparison result on the control panel.
- Examples of health advice include power that can be varied depending on the user's situation, such as those that convey adverse effects on health due to excessive salt intake, and tips for reducing salt in daily diet.
- a message such as a compliment message may be displayed.
- the CPU 211 starts a measurement control routine, and urine measurement starts. Furthermore, the CPU 211 (the urinary component amount calculating unit 411, the daily urinary excretion calculating unit 413) in FIG. Recognize that the current excretion time information is urine immediately before going to bed, and use it for analysis. In the procedure shown in the first embodiment, the CPU calculates the urinary salt content immediately before going to bed and stores it in the hard disk (urine component amount storage unit 415) together with the excretion time information of “urine just before going to bed”.
- the user gets up and urinates.
- the CPU 211 starts the measurement control routine and the urine measurement starts.
- the user presses the excretion time information button 205 on the control panel and selects and inputs “night urine”, so that the CPU 211 (the urinary component amount calculating unit 411 in FIG. 3 and the daily urinary excretion calculating unit 413). Recognizes that this excretion time information is night urine and uses it for analysis.
- the CPU 211 (urinary component amount calculation unit 411) calculates the nighttime urinary salt amount by the procedure shown in the first embodiment, and the hard disk (urinary component amount accumulation unit 415) together with the excretion time information of “night urine”. To store.
- the hard disk stores "urine immediately before sleep” and "night urine” according to the individual.
- Regression equation showing correlation with urinary excretion salt content is stored, CPU211 uses urine salinity before bedtime and nocturnal urine salinity V, and daily excretion from urinary regression equation Estimate salinity.
- FIG. 7 is a graph showing an example of the regression equation stored in the regression equation storage unit 416 shown in FIG.
- Each point shown in the graph of Fig. 7 is a plot of the measurement results shown in Table 1 below.
- the horizontal axis of FIG. 7 shows the amount of NaCl (g) in spot urine, and the vertical axis shows the amount (g) of daily excretion NaCl contained in the urine stored for one day.
- the 8-hour correction shown in Table 1 and FIG. 7 will be described later.
- Table 1 shows that men in their 30s actually collected urine for 11 days, and measured the amount of urine NaCl from the salt concentration and urine volume of each excreted urine. It is the table
- a regression equation was derived to derive the daily urinary salt excretion shown in Equation 1 from the sum of the urinary salinity immediately before bedtime and the nocturnal urinary salinity.
- This regression equation is obtained by the least square method from the points of the white diamonds plotted in Fig. 7, and is indicated by a thick solid line.
- the white diamond points are obtained by plotting the 6th stage “Before Sleep + Night” values in Table 1 on the horizontal axis and the 5th stage “Daily Urine” values in Table 1 on the vertical axis. It is.
- the regression equation storage unit 416 stores, for example, a regression equation as shown in Equation 1 calculated as a result of actual measurement as shown in Table 1.
- the daily urinary excretion calculation unit 413 substitutes the urinary component amount immediately before bedtime calculated by the urinary component amount calculation unit 411 and the nocturnal urinary salt amount into the formula shown in Equation 1, The amount of medium excretion is calculated.
- the first to fifth stages in Table 1 are actually measured data forces.
- the sixth to eighth stages are the data forces from the first to fifth stages. is there.
- the sum of the urinary salinity immediately before going to bed and the urinary salinity at night is calculated in the sixth row “Before going to bed + night” in Table 1.
- This value was obtained by adding the values in the second row “just before going to bed” in Table 1 and the values in the third row “night urine”.
- the urinary salinity immediately before going to bed on the first day of measurement is 1. Olg
- the nocturnal urinary salinity on the first day of measurement is 3.53 g.
- the value obtained by adding these is the value of “54.
- regression equation storage unit 416 for each sex and age.
- the daily urinary excretion calculation unit 413 returns the regression equation that applies to the gender and age of the user from the regression equation storage unit 416. You can select,
- Table 2 shows the correlation between each excreted urinary salt excretion and daily urinary salt excretion, and the combination of multiple urinary salt excretions within 24 hours and daily urinary salt excretion. It is a table showing the correlation.
- FIG. 8 is a block diagram showing the configuration of the daily urinary excretion measuring apparatus 200 that calculates the daily urinary excretion by correcting the nocturnal urinary salinity for 8 hours.
- the main difference from the above-mentioned daily urinary excretion measuring apparatus 100 is that the 8-hour correction unit 712 corrects the urinary urinary salinity for 8 hours, and a new 8-hour correction unit 712, 1
- the notification menu display unit 717 and the display unit 207 “take the spot urine and calculate the component amount of the urine component by the urine component amount calculation means”. It corresponds to “measurement notification means for notifying the user of timing”.
- the 8-hour correction unit 712 is configured to "accumulate and store each of the urine component amount immediately before going to bed and the night urine component amount !, based on the excretion time information !, Equivalent to the above-mentioned daily urinary excretion calculating means for correcting the nocturnal urinary component amount by converting the time until the excretion of the nocturnal urine into 8 hours, When the urinary salinity calculated by the middle component amount calculation unit 41 1 is the salinity in the nighttime urine, the calculated nocturnal urinary salinity is corrected for 8 hours.
- the 8-hour correction unit 712 takes 8 hours to divide the nocturnal urinary salt amount by the time from the time when the urine immediately before going to bed the day before was measured to the time when the nocturnal urine was measured.
- the calculated nighttime urinary salinity is converted into an 8-hour nocturnal urinary salinity.
- the daily urinary excretion calculation unit 713 reads: "In the daily urinary excretion calculation step, the sum of the urinary component amount immediately before going to bed and the nocturnal urinary component amount corrected for 8 hours, From the correlation with the total amount of urine components contained in urine, calculated by the urine component amount calculation means Using the urine component amount immediately before going to bed and the urine component amount calculated by the urine component amount calculator and corrected by the daily urinary excretion calculator in the 8-hour correction step Corresponds to the above-mentioned daily urinary excretion calculating means for calculating the daily urinary excretion of the component.
- the regression equation storage unit 716 stores the correlation between the urinary excretion before sleep, the nocturnal urinary excretion corrected for 8 hours, and the daily excretion salinity. Use the formula to calculate the daily urinary excretion of salt.
- the regression equation used here is indicated by a bold line with a long interval calculated from the point represented by "X" by the least square method.
- the excretion time information determination unit 714 determines excretion time information such as “nocturnal urine” and “immediately before going to bed” from the current time of measurement acquired from the time measurement unit 216 at the start of measurement.
- the urinary component amount accumulating unit 715 is adapted to the data accumulated in the urinary component amount accumulating unit 315 of Embodiment 1, and the nocturnal urinary salinity corrected for 8 hours by the 8 hour correcting unit 712. Accumulate quantity. This data corresponds to the 4th row “Night urine (8 hours correction)” in Table 1.
- the regression equation storage unit 716 stores a regression equation according to the individual user obtained as a result of measuring the data of the eager user.
- This regression equation is a regression equation showing the correlation between the urinary salt content before bedtime and the nocturnal urinary salt content corrected to 8 hours and the daily urinary salt content.
- the notification menu display unit 717 receives the notification time table storage unit 718.
- the stored notification time table for example, checks the measurement time suitable for the next measurement and displays it on the display unit 207.
- the notification time table storage unit 718 stores a notification time table created in advance indicating the time suitable for measurement.
- the difference between the second embodiment and the first embodiment is that there is a correlation between the urinary salt excretion before bedtime, the nocturnal urinary salt corrected to 8 hours, and the daily urinary excretion salt. This is the point stored in the hard disk (regression equation storage unit 716 in FIG. 8). More specifically, the regression formula of the daily urinary excretion salt concentration that is adapted by the user is stored in the hard disk.
- the CPU 211 starts a measurement control routine and urine measurement starts.
- the CPU 211 inputs the current measurement time detected by the timer 216.
- the CPU 211 calculates the urinary salinity immediately before going to bed according to the procedure shown in the first embodiment, and stores it in the hard disk (urine component amount accumulating unit 715) together with the current measurement time.
- the CPU 211 After bedtime, the user gets up and urinates. After the wake-up, the first excretion urine (hereinafter referred to as “night urine”) is collected in the same way as when urinating before going to bed, and when the measurement start button 204 is pressed, the CPU 211 starts the measurement control routine and the urine measurement starts. Begins.
- the CPU 211 (excretion time information determination unit 714 in FIG. 8) inputs the current measurement time detected by the time measurement unit 216.
- the CPU 211 (excretion time information determination unit 714) compares the current time at the time of this measurement with the current time of the previous measurement stored in the hard disk (urine component storage unit 715) and recognizes that it is night urine.
- CPU211 extracts the urinary salinity at night by the elapsed time from the previous excretion time.
- the CPU 211 (excretion time information determination unit 714) determines that the previous data stored in the hard disk (urine component storage unit 715) is the urine just before going to bed, taking into account the current time at the time of measurement. Recognize and use for analysis.
- the hard disk (regression equation storage unit 716) stores a regression equation that shows the correlation between the urine immediately before going to bed, the urine immediately before sleep (8 hours correction), and the daily urinary excretion salt content.
- the CPU211 (daily urinary excretion calculator 713) estimates the daily urinary excretion from the regression equation using the urinary salinity before bedtime and the nocturnal urinary salinity (8 hour correction).
- the determination of the excretion time information is performed by the CPU 211 using the time measuring unit 216.
- the excretion time information on the control panel used by the user is used.
- the information from the buttons can be used together! /.
- the present embodiment is a regression that represents the correlation between the urinary excretion before sleep, the nocturnal urinary excretion corrected to 8 hours, and the daily urinary excretion. The formula was used.
- Table 3 shows an analysis of an experiment in which a man in his 30s actually collected urine for 11 days, measured the amount of salt in urine from the concentration of urine and the amount of urine in each urine, and recorded it together with the time of urination. It is a table showing the correlation between urinary salt excretion and daily urinary salt excretion.
- Embodiments 1 and 2 the example in which a regression equation is constructed using data for 11 days is used, but the number of days employed is not particularly specified. Since salt intake varies within individuals and also varies seasonally, it is desirable to construct and update regression equations using data from the most recent few days. Furthermore, it is not easy to create a regression equation for each day that has a similar sleep 'meal' activity pattern, such as commuting, working days, and holidays.
- FIG. 9 is a diagram showing an appearance of a control panel of daily urinary excretion measuring apparatus 200 according to the second embodiment.
- the daily urinary excretion measuring apparatus 200 includes a measurement start button 204, a display unit 207, an excretion time information button 230, a result display button 240, a cursor movement button 250, and a measurement notification menu button 260.
- the excretion time information button 230 is a button for accepting input of excretion time information of “urine immediately before going to bed” and “night urine”. It includes a time button for the user to manually enter the current time at the scheduled time.
- the daily urinary excretion calculation unit 713 displays the daily urinary excretion salt amount and the corresponding health advice.
- the instruction signal is output to the daily urinary excretion calculator 713.
- the cursor movement button 250 is a button for scrolling health advice displayed on the display unit 207 and moving the cursor to select one of a plurality of selection candidates.
- the measurement notification menu button 260 instructs the notification menu display section 717 to display the urination time suitable for the next measurement in order to prompt the measurement of urine with the excretion time information having a high correlation with the daily urinary salt content. It is a button to do.
- the daily urinary excretion measuring apparatus 200 is different from the daily urinary excretion measuring apparatus 100 of Embodiment 1 in that the display unit 207 on the control panel is greatly provided and the measurement is performed on the display unit 207.
- the display screen of the measurement notification menu that notifies the timing can be displayed. This measurement notification menu encourages the measurement of urine with excretion time information that has a high correlation with daily urinary salt content. Considering that the biological rhythm of urinary salt excretion is different, the urine sample just before going to bed is used as the urine sample during the active time, and the night urine is used as the urine sample during the sleep time.
- excretion time information that has a high correlation with the daily urinary salt content that is, notification by sound such as generating an alarm at bedtime and wakeup time, or by light
- the bedtime and wake-up time may be input by the user, or may be informed through a time period generally estimated to be bedtime and wake-up.
- a form of excretion time information having a high correlation with the daily urinary salt content may be displayed.
- This configuration facilitates measurement at the time of excretion, which has a high correlation with the daily urinary salt content, and leads to more accurate estimation of the daily excretion.
- FIG. 10 shows the configuration of the daily urinary excretion measurement device 300 that creates a regression equation for each user.
- the urinary daily excretion measuring apparatus 300 according to the third embodiment has a daily urinary salinity immediately before going to bed for at least 3 days, a nocturnal urinary salinity corrected for 8 hours, and a sum of them.
- Accumulated urinary excretion salt amount and as shown in the graph shown in Fig. 7, create individual regression equations for each user by the least square method. After the regression equation is created, the daily urinary excretion measurement device calculates the daily urinary excretion using the created regression equation.
- Urine daily excretion measuring device 300 is composed of advice storage unit 417, 8-hour correction unit 71 2, daily urinary excretion calculation unit 713, urine component storage unit 715, regression equation storage unit 716, urine component A quantity calculation unit 911 and a regression equation calculation unit 914 are provided.
- the daily urinary excretion measuring apparatus 300 is “additionally, the amount of components in the urine immediately before going to bed for at least 3 days, the amount of components in the night urine and the corresponding daily excretion in the urine”
- Urinary component amount accumulating means for accumulating urine, the sum of the urinary component amount immediately before sleep and the nocturnal urine component amount accumulated in the urine component amount accumulating unit, and the corresponding urine 1
- a correlation calculation means for calculating a correlation between the sum of the urinary component amount immediately before going to bed and the urinary component amount at night and the daily urinary excretion amount from the daily excretion amount by linear approximation.
- the urinary component excretion measuring unit 715 corresponds to “the urinary component excretion measuring device”, the urine component amount accumulating unit 715 is “urinary component amount accumulating means”, the regression equation is “correlation”, Correlation calculation means ”.
- FIG. 11 is a flowchart showing a processing flow when the daily urinary excretion measurement apparatus 300 shown in FIG. 10 creates a regression equation for each user.
- the CPU 211 starts the regression equation creation routine, and urine measurement starts.
- the CPU 211 (urine component amount calculation unit 911) inputs the current measurement time detected by the time measurement unit 216 (S801). The user also inputs excretion time information such as “urine immediately before going to bed” and “night urine”.
- the CPU 211 urinary urine composition
- the amount calculation unit 911 calculates the urinary salt amount (S803) and stores it in the hard disk (urine component amount storage unit 715) together with the current time of measurement and excretion time information (S804).
- the 8-hour correction unit 712 corrects the calculated urinary component amount for 8 hours in the same manner as in the second embodiment, and the current time and excretion during measurement. It is stored in the hard disk (urine component storage unit 715) together with the time information “8-hour corrected nocturnal urine”.
- the urine component amount calculation unit 911 (and the 8-hour correction unit 712) repeatedly performs the processing of steps S801 to S804, and (A) the measured urine amount, salt concentration, urinary salt amount, and 8-hour correction are performed.
- the nighttime urinary salt content is stored in the hard disk (urine component storage unit 715) in correspondence with the current measurement time and excretion time information for one day (S805).
- the urine component amount calculation unit 911 calculates the daily urinary excretion salt amount by summing the urinary salt amount accumulated in the urine component amount accumulation unit 715 for one day (S806).
- the daily urinary salt excretion amount and (A) are accumulated in the urine component amount accumulating unit 715 as the daily excretion data (S807)
- the urine component amount calculation unit 911 and the 8-hour correction unit 712 repeatedly perform the processing of step S801 force S807, and the excretion data for one day for several days, preferably 5 days, at least 3 days, It is stored in the hard disk (urine component storage unit 715) in association with the current time of measurement and excretion time information (S808).
- the regression equation calculation unit 914 combines a plurality of urinary excretion salt amounts accumulated in association with excretion time information (particularly, urinary salinity immediately before going to bed and 8-hour corrected nocturnal urinary salinity) And the daily urinary salt excretion amount calculated in step S806 is plotted for each measurement day to create a graph as shown in FIG. 7 (S809).
- the regression equation calculation unit 914 calculates a regression equation from each point plotted on the graph by the least square method (S810).
- the regression equation calculation unit 914 stores the calculated regression equation in the regression equation storage unit 716 (S811).
- the user uses the urine daily excretion measuring apparatus 300 to measure the number of urinations for the entire day for several days. Individual recursive formulas are automatically created. For this reason, users can create their own regression formulas without having to go to facilities such as hospitals and health centers to create regression formulas.
- users can create their own regression formulas without having to go to facilities such as hospitals and health centers to create regression formulas.
- when calculating daily urinary excretion using regression formulas by standard sex and age Compared to the above, it is possible to calculate more accurate daily urinary excretion by calculating the daily urinary excretion using a regression equation created individually. If you can get the service, it will have a positive effect.
- the user accumulates excretion data for one day, and sums the urinary salt content in the accumulated excretion data, thereby calculating the daily urinary excretion salt content. did.
- the accuracy of the regression equation is low, the user does not accumulate excretion data for one day.For example, only the urinary salt content immediately before going to bed and the 8-hour corrected nocturnal urinary salt content are measured for several days.
- a regression equation may be created.
- the daily urinary excretion salt amount is calculated by the daily urinary excretion calculating unit 713 using a standard regression equation for each gender and age.
- the user does not need to measure the entire urination for one day, and only needs to measure the urine just before bedtime and the nocturnal urine twice. Can be obtained.
- the regression equation is corrected each time the measurement is repeated, there is an effect that a regression equation more suitable for the individual user can be obtained.
- Creatun is a creatine dehydrate and has no biological activity. In vivo, creatine phosphate is generated directly in muscles and nerves, by creatine dehydration, appears in the blood, is filtered from the glomeruli, and is excreted in the urine with little reabsorption. The Since creatinine production is proportional to the total amount of muscle creatine (the total amount of muscle), in adults, the production is equivalent to kg body weight.
- Creatun correction is widely used clinically as an evaluation of urinary components that have been corrected for the effects of urine concentration and dilution, and this urinary component Z creatine ratio is the daily urinary clearance. It is also possible to calculate the daily urinary component excretion by multiplying the Chun excretion, and methods for estimating the daily urinary component excretion from the amount of component in the spot urine are being studied.
- the daily urinary excretion measuring apparatus of Embodiment 4 can be obtained by collecting urine using a urine collecting apparatus provided in a toilet bowl, a buttocks washing apparatus or the like.
- the force using Tanaka et al.'S formula is not limited to this as the creatinine correction method.
- concentration of creatine in the spot urine the amount of the component in the spot urine (or the creatine ratio of the component in the urine) force If it is an equation for calculating the daily urinary excretion of that component, the same as this Can be used.
- the above prediction formula using age, height, and weight as independent variables is used, but a prediction formula using gender as an independent variable may be used.
- a table indicating any one or a combination of age, height, weight, and sex, and the daily daily amount of Creatun excretion is stored. It is good.
- the table force may be obtained by reading the daily creatine excretion amount of the subject and multiplying the creatine ratio of the urine component for each spot urine to calculate the daily urinary excretion amount.
- FIG. 12 is a diagram showing a hardware configuration of daily urinary excretion measurement apparatus 400 according to the fourth embodiment.
- the sensor 3 has a configuration in which the urine volume sensor portion in the first embodiment is changed to a clarified sensor. That is, the daily urinary excretion measuring apparatus 400 determines the concentration of creatinine contained in one urination and the concentration of urinary components contained in the urine for a plurality of spot urines within a certain period. By measuring, the total amount of urinary components excreted in the urine of the average one day (for example, one day going back from the first urine excretion time after getting up) is automatically calculated.
- the calculation device comprises a control unit 2 and a sensor 3.
- the control unit 2 includes a display unit 207, a CPU 211, a memory 215, a timing unit 216, a transmission unit 217, an input unit 218, and the like, and these units are connected to each other via a bus.
- Sensor 3 is Creat A Nin sensor 303 and a salinity sensor 302 are provided.
- the display unit 207 is not particularly limited as long as it displays force measurement data and analysis data configured by a liquid crystal display.
- the display unit 207 displays a data input screen, an output screen for displaying measurement data and analysis data, an instruction screen for displaying measurement instructions, and the like.
- the display unit 207 displays the measured creatine concentration, the urine component concentration, the urine component amount expressed by the creatinine ratio of the urine component, the calculated daily urinary excretion amount, and the like. indicate.
- the display unit 207 corresponds to “a display means for displaying advice when the comparison means determines that the daily urinary excretion exceeds the reference amount”, and the calculated daily urine is calculated. Displays health advice based on medium excretion.
- the CPU 211 controls the entire control unit 2. In addition, the CPU 211 performs processing for measuring urine using each sensor in accordance with a program stored in the ROM, processing for estimating daily urinary excretion using the measured urinary salt concentration and urinary creatinine concentration, and multiple processing. Perform secondary processing of measurement data, such as processing to estimate the average daily urinary excretion from spot urine measurement data. Further, the CPU 211 exchanges signals with an input unit 218 and a touch panel provided on the control panel, thereby inputting instructions from the user and displaying each information on the display unit 207.
- the memory 215 includes RAM, ROM, IC memory, a hard disk, and the like.
- the memory 215 preferentially stores the correlation between the spot urinary creatine concentration and the daily urinary excretion amount in, for example, ROM.
- a readable / writable large-capacity memory 215 realized by a hard disk, an IC memory, etc., each time measurement is performed, the creatinine concentration, the concentration of urine components, and the amount of urine components measured in association with excretion time information Measurement data such as are stored.
- the timer 216 is a timer or the like, and detects excretion time information.
- Transmitter 217 transmits measurement results, health advice, etc. to an external personal computer, mobile phone, PDA, etc., registered in advance by the user via infrared communication or a mobile phone line.
- the input unit 218 is provided on various buttons provided on the control unit 2 or on the display unit 207. Such as touch panel.
- the daily urinary excretion measuring apparatus 100 of this embodiment includes an input / output port and can be an external flexible disk drive connected to the input / output port or I.
- the Creatun sensor 303 measures the concentration of creatine in urine sucked into the sensor. Specifically, an enzyme method is used to measure Creathun. In the sensor, creatine amide hydrolase, creatine amidinohydrolase, sarcosine oxidase and a dye, which are enzymes for measuring creatine, are dried and supported in the sensor, and the color change of the dye is judged to measure the creatinine concentration ( (Reference: Patent Sho 54-151095).
- the method for measuring Creathun is not limited to the enzyme method for measuring Creathun used in the present embodiment.
- There are other methods for measuring creatinine by the enzyme method such as a method for detecting ammonia using creatinine diminase (Reference: Special Publication 2001-512692), and these methods may be used. If there is a simple method to measure the concentration of urinary taleachoon, it can be used. If it is possible to measure the creatine concentration in spot urine, it can be used.
- the salt sensor 302 measures the urinary salt concentration of urine inhaled into the sensor 3.
- the salinity sensor 302 measures the urinary salt concentration by an electrode method using a conductivity method. Conductivity measurement can be realized by measuring the impedance between predetermined terminals. Since there are no moving parts, the structure is simple and the operation reliability is high. Since the urinary conductivity largely depends on the sodium concentration, the correlation between the urinary sodium concentration and the electrical conductivity is also determined by obtaining a calibration curve, and two electrodes for measuring the conductivity. The concentration of sodium can be measured with an inexpensive sensor equipped with a sensor. When the salinity concentration is measured by conductivity, correction may be made to remove errors due to potassium or magnesium other than salinity.
- FIG. 13 is a functional block diagram of the main part of daily urinary excretion measuring apparatus 400 realized by CPU 211 and memory 215 shown in FIG.
- the daily urinary excretion measuring apparatus 400 includes a urine component amount calculating unit 411, an average daily urinary excretion calculating unit 418, An intermediate component amount storage unit 415, a regression equation storage unit 416, and an advice storage unit 417 are provided.
- the daily urinary excretion measuring method 400 by the urinary daily excretion measuring apparatus 400 is as follows: "In the urinary component amount calculating step, the urinary component amount calculating means is measured by a component sensor. Calculate the creatinine ratio of the urinary component in the spot urine as the amount of the component contained in the spot urine from the concentration of the component in the spot urine and the creatine concentration in the spot urine measured by the creatine sensor Then, in the daily urinary excretion calculation step, the daily urinary excretion calculation means compliments the creatinine ratio that is the urinary component quantity calculated by the urine component quantity calculation means.
- a daily urinary excretion measurement method for calculating the daily urinary excretion of the component using the creatine daily excretion retained in the urine component amount calculating means Is equivalent to.
- the urinary component amount calculation unit 411 reads, “From the concentration of the component in the spot urine measured by the component sensor and the concentration of creatine in the spot urine measured by the creatun sensor, The urinary component amount calculating means for calculating the creatinine ratio of the urinary component in the spot urine as the component amount contained in the urine, and the average daily urinary excretion calculating unit 418 Using the Creatun ratio, which is the amount of the urine component calculated by the amount calculating means, and the daily excretion amount of Creatun held in the urine component amount calculating means, The daily excretion amount calculating step corresponds to the “daily urinary excretion calculating means” for calculating the daily urinary excretion amount of the component.
- the daily urinary excretion measuring method using the daily urinary excretion measuring apparatus 400 is described as follows: "The daily urinary excretion calculating means calculates the urinary component amount calculating means within the period. It is equivalent to the ⁇ daily urinary excretion measurement method that calculates the daily urinary excretion using the urinary component amount in the spot urine 3 times or more and 14 times or less '', and the average daily urine
- the excretion amount calculating unit 418 corresponds to “daily urinary excretion calculating means”.
- the urine component amount calculation unit 411 calculates the ratio between the salt amount in the spot urine and the creatine amount from the creatine concentration input from the creatun sensor 303 and the salt concentration input from the salt sensor 302. Is calculated. Further, the urinary component amount calculation unit 411 calculates the input tare tun concentration and the salt concentration and the calculated salt creatine ratio from the time measurement unit 216, the current time at the time of measurement, and the input unit 218. Corresponds to the input excretion time information In addition, it accumulates in the urine component amount accumulating unit 415.
- the daily urinary excretion calculation unit 418 calculates the spot urinary salinity by the urinary component amount calculation unit 411, the salt for the 5 most recent times measured within one week from the measurement time is calculated. The Creatun ratio of the minute is read from the urine component amount accumulation unit 415. Next, the average daily urinary excretion calculation unit 418 is stored in the regression equation storage unit 416, and the 6 To calculate the daily urinary excretion of salt. In addition, the average daily urinary excretion calculation unit 418 calculates the measurement data for all six times, that is, the average daily salinary urinary excretion, thereby calculating the user's past one week. Calculate the average daily urinary excretion of the salt excreted in the average daily urine.
- the average daily urinary excretion calculation unit 418 reads out advice corresponding to the calculated average daily urinary excretion from the advice storage unit 417 and causes the display unit 207 to display the advice. Further, the daily urinary excretion calculation unit 413 outputs information such as the calculated daily urinary excretion and advice corresponding thereto to the transmission unit 217 in accordance with the instruction input from the input unit 218.
- the urine component amount accumulating unit 415 accumulates the current time at the time of measurement, excretion time information, creatine concentration, salt concentration, and the like. In addition, when calculating the creatinine ratio of the salt content in the spot urine, the average daily urinary excretion, and the difference between the average daily urinary salt excretion and the reference amount, it is also accumulated.
- the regression equation storage unit 416 stores a regression equation calculated in advance that represents the correlation between the creatinine ratio of a plurality of spot urinary salt amounts and the average daily urinary excretion of salt.
- the advice storage unit 417 stores a standard amount of salinity average daily urinary excretion, or health advice determined in advance corresponding to the amount of deviation of the reference amount force.
- Fig. 2 to Fig. 6 show a method for measuring and analyzing the amount of salt excreted in urine collected at any time using this daily urinary excretion measuring device 400, and estimating the amount of salinary excretion in daily urine. This will be explained with reference to.
- FIG. 6 is a flowchart showing a measurement control routine executed by the CPU 211 shown in FIG.
- the CPU 211 inputs the measurement start time (current time at the time of measurement) detected by the time measuring unit 216 (step 311). At this time, the user inputs the excretion time information by pressing the excretion time information button 205 on the control panel.
- the CPU 211 executes urine measurement processing (step 312).
- the measurement process is performed by the salt sensor 302 and the clear tune sensor 303 provided in the sensor 3, respectively.
- the salt concentration is detected after the conductivity measurement
- the creatine concentration is detected after the optical measurement.
- CPU211 (Urine component amount calculation unit 411 in Fig. 3) is a formula created by Tanaka et al. Using salinity concentration, creatine concentration, and the age, height, and weight values of the user who have been preliminarily input. To calculate the daily urinary salt excretion.
- the measurement power of this time can be traced back, and the measurement of either daily urine or bedtime urine performed within one week, the results of 5 daily urinary salt excretion, and the daily urinary salt excretion measured this time Calculate the average of the data for the total 6 doses, and calculate the average daily urinary salt excretion. This value represents the average salt intake over the past week from the date of measurement.
- the measurement power is traced back. If the specified number of measurements (in this case, 6 times in total) has not been performed within a certain period (in this case, 1 week), The display is configured to display an indication that the average daily intake cannot be calculated, a guideline indicating how many times it should be measured, and a comment that evaluates that this measurement has been performed. In this way, the effect of prompting the measurement to the user of the measuring device can be obtained, and the effect of continuing the next life improvement (salt reduction) can be obtained.
- the CPU 211 calculates the reference amount of urinary excretion stored in the hard disk (advisor storage unit 417 in Fig. 3) in advance and the calculated average 1
- the daily excretion of salt in the urine is compared, and the difference of the reference amount is calculated (step 314).
- the reference amount is recommended in advance by a medical institution, and an average value may be used, or the user's own target value may be input with the control panel power.
- the comparison result with the daily urinary salt excretion amount and the reference amount is stored on the hard disk together with the measurement date and time (step 315).
- the urinary salt amount, the daily urinary salt excretion amount, and the comparison result with the reference value are displayed on the display unit 207 of the control panel (step 316).
- the comparison result with the reference value may be displayed when the user presses a result display button (not shown).
- the node disk is configured to store the health advice according to the comparison result with the average daily urinary salt excretion amount and the reference value
- the health advice is put together with the measurement result and the comparison result on the control panel.
- Examples of health advice include power that can be used in various ways depending on the user's situation, such as those that convey adverse health effects due to excessive salt intake, and tips for reducing salt in daily eating habits.
- a message such as a praise message may be displayed.
- the number of spot urine measurements of nighttime urine and Z or urine before bedtime is described as 6 times within one week.
- FIG. 14 is a graph showing the number of detected period differences when using the average of multiple data including both nighttime urine and urine before bedtime. .
- the horizontal axis of the graph indicates the number of continuous measurements during the week.
- the number of detected period differences was the average number of daily urinary excretion measured during the high salt intake period and the low salt intake period among the 8 users. Indicates the number of persons.
- differences in salt intake were detected for 6 or more of 8 subjects.
- the difference in intake is detected by 4 out of 8 people.
- FIG. 15 is a graph showing the number of detected period differences when using the average value of a plurality of data obtained by measuring only night urine.
- FIG. 16 is a graph showing the number of detected period differences when using the average value of a plurality of data obtained by measuring only urine before bedtime. As shown in Fig. 16, when the average value was used only for the measurement of urine before bedtime (night), 4 or more out of 8 persons could detect the difference in 4 or more measurements.
- the daily excretion measurement device in urine By displaying the average daily urinary excretion in urine and the advice on the display unit 207, the user can be provided with more accurate measurement results and receive more appropriate advice. There is an effect that it can be provided.
- the display unit 207 indicates that “the daily urinary excretion calculating unit is not calculated until the component amount in each spot urine collected a plurality of times within the period is calculated by the urinary component amount calculating unit”.
- the average urine in a certain period can be obtained by using three or more spot urine measurement results. 1 day
- the result of excretion can be obtained, and as a result, it is possible to detect the difference in intake for periods where intake is different. This can be used as a tool for determining the effectiveness of salt reduction guidance in the field of treatment or prevention of lifestyle-related diseases.
- the measurement accuracy is lower than the calculation of the daily urinary excretion based on the measurement of the urinary component amount, but the convenience of the user of the measuring device is The increase in daily urinary excretion based on Creathun correction is a simpler measurement method.
- the urine component amount measuring unit is not particularly limited as long as it can measure the amount of the component excreted in urine, but means for measuring the urine amount and the urine component concentration are not limited.
- An example is a method of measuring the amount of components excreted in urine in combination with a measuring means.
- urinary salt is used as an example of urinary components.
- urinary components that can be measured for daily urinary excretion using the daily urinary excretion measuring device of the present invention.
- urinary salt examples include protein, salt, and uric acid.
- various methods are used depending on the measurement object.
- Protein is also called urinary albumin, and the concentration of urinary albumin is used as an indicator of kidney function. In diabetic nephropathy, which develops as diabetes progresses, a minute amount is used in the initial stage. Detecting trace albumin excreted is important for early detection. Various means for detecting albumin are used, and examples include immunization using an anti-albumin antibody that specifically binds albumin, immunoturbidimetry, and the like.
- Salt is known to cause high blood pressure and gastric cancer, and it is desirable to control the intake of salt to an appropriate value for the prevention and treatment of these diseases. Since the amount of salt excreted in urine is almost equal to the amount of salt ingested, measuring the amount of salt excreted in a day can be used as a guideline for daily salt intake.
- Various means are used to detect urinary salt, but the electrode method using the conductivity method and sodium ions can be selectively used. Examples include those using a selective electrode that reacts, and detection of chloride ions by a coulometric titration method or an ion selective electrode method.
- Uric acid is known as a causative substance such as gout, and it is said that about 80% of the daily synthetic amount is excreted in urine. Therefore, if the uric acid in urine is measured, the uric acid level in the body can be estimated and can be used for the prevention and treatment of gout and other diseases.
- methods for detecting uric acid include a force electrode method in which various methods are used, and a method for detecting the concentration of uric acid based on the color of the solution after being decomposed by uricase.
- the excretion time information limits the time when urine excretion is performed, and examples thereof include date and time when urine excretion is performed. In addition, it shows time intervals in the day such as early morning, daytime, midnight, before noon, and afternoon, seasons such as spring, summer, autumn, and winter, and before meals, after meals, before exercise, after exercise, Examples of excretion time information include things related to life such as immediately before going to bed and after getting up, and the number of urinations after getting up, such as the first, second, ... after waking up.
- a timer or the like is acceptable as long as it has a timer.
- the date and time of measurement may be detected together with a calendar function.
- weekdays and holidays can be distinguished as well as days of the week, and life patterns such as sleeping, eating, exercising and activities can be inferred.
- Examples of methods for inputting excretion time information include a method in which a CPU or the like is executed in accordance with a stored program, and a method in which the user himself / herself inputs directly. It is known that there is a biological rhythm in the excretion of urinary components, and the excretion amount is greatly influenced by environmental factors such as time of urination, activity content, lifestyle, and climate. Therefore, when examining the amount of urinary excretion, the conditions regarding when the urinary force S is excreted are important, so the measured urinary excretion is memorized together with the excretion time information which is the important measurement condition. Is done.
- the type of storage unit is not particularly limited, but examples include a nonvolatile memory such as a hard disk, a CD-ROM, an SD card, and a movable recording medium. It is known that the excretion of urinary components varies widely among individuals, but even within the same person, the daily fluctuation is large. Therefore, analyzing the measurement data for several days stored in the storage unit Thus, it is possible to obtain a measurement result more reflecting the health condition of the user.
- the average sleep time pattern (average sleep time and average wake-up time) of the user is stored in the measurement device in advance, and the sleep time pattern is compared with the excretion time information.
- a method for judging whether the urine is pre-urine or nocturnal urine within the device and a sensor capable of sensing a constant weight (general human weight) under the user's bedding, and that sensor for more than a certain time
- the bedtime starts, and when the weight is continuously lost for a certain time (for example, 30 minutes or more), it is determined that the user has woken up.
- There is a method of grasping the excretion time before and after going to bed by sending it to the measuring device by wire or wirelessly from the input / output port and comparing it with the excretion time information.
- a wired connection method for example, there are a USB connection and a LAN (registered trademark) connection.
- wireless connection methods include infrared communication, Bluetooth (registered trademark) communication, and wireless LAN.
- the display unit is not particularly limited as long as it can display measurement data and analysis data, but a display unit using a liquid crystal display can be given as an example.
- the target intake of salt is less than 10g Z days for healthy Japan 21 and less than 5g for WHO.
- the reference amount is not particularly limited, but an average value recommended in advance by a medical institution or the like may be used, or the user's own target value may be directly input.
- it is not particularly limited as a comparison unit, there are a method for causing the CPU to execute according to a stored program, a method for displaying the reference amount together with the daily excretion amount, and allowing the user to make a judgment. Is given as an example.
- Health advice according to the result is memorized, health advice is extracted according to the comparison result with daily urinary excretion and reference value, and the health advice is displayed on the control panel together with the measurement result and comparison result
- Various types of health advice can be considered depending on the user's situation and the object to be measured, but in the case of salinity measurement, there are indications of adverse health effects due to excessive salt intake, and reductions in daily eating habits. An example of this is salt.
- a message such as praise may be displayed.
- This measurement notification unit prompts the measurement of urine with excretion time information having a high correlation with the daily urinary excretion.
- the notification method is not particularly limited, but has a high correlation with the daily urinary excretion amount. Sound alerts such as generating an alarm during excretion time information, and light alerts are used to alert the user. An example is a method of prompting measurement.
- a form of displaying excretion time information having a high correlation with the daily urinary excretion may be used as a standby display on the display unit. This measurement timing may be input by the user, or may be selected by selecting a recommended time zone that is preliminarily stored by the device.
- a selective electrode that selectively reacts with sodium ions may be used, or a flame photometric method may be used.
- Flame photometry is a method in which urine as a sample is sprayed into a flame and the intensity of light of a specific wavelength generated by sodium power is measured.
- chloride ions there is no problem.
- various well-known methods such as coulometric titration method and ion selective electrode method can be applied.
- a urine volume detection sensor may be provided in the urine collection container.
- the user himself / herself may collect the urine in a container with a measurement scale at the time of urination, or measure the urine volume with an electronic measuring instrument and directly input from the control panel.
- a liquid volume measuring device As a liquid volume measuring device, a method of measuring the liquid level using light or sound waves, a method of measuring the position of the float by floating the float in the liquid, a method of measuring the liquid pressure at the bottom of the tank, (2) Immerse the electrode in the liquid and use the change in electric capacity, immerse the electrode in the liquid and measure the conductivity of the liquid, immerse the resistor in the liquid and measure the resistance of the resistor The method is known. Alternatively, the weight and specific gravity of urine may be measured to determine the weight and specific gravity value urine volume.
- the current time at the time of measurement is acquired from the time measuring unit 216, and the user presses the excretion time information button 205 at the same time.
- the excretion time information is input by pressing, only the current time at the time of measurement may be manually input by the user. In addition, only excretion time information may be input.
- each functional block in the block diagrams (FIGS. 3, 8, 10, 13, etc.) and the control unit 2 shown in FIGS. 2 and 12 are typically implemented as LSIs that are integrated circuits.
- the These may be individually chipped, or may be chipped to include some or all of them.
- the functional blocks other than the memory may be integrated into one chip.
- IC integrated circuit
- LSI system LSI
- super LSI super LSI
- non-linear LSI depending on the difference in power integration as LSI.
- the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible. It is also possible to use a field programmable gate array (FPGA) that can be programmed after LSI manufacturing, or a reconfigurable processor that can reconfigure the connection and settings of circuit cells inside the LSI.
- FPGA field programmable gate array
- only the means for storing the data to be encoded or decoded may be configured separately without using one chip.
- the daily urinary excretion measurement apparatus and method according to the present invention can measure the daily excretion of urinary components with high accuracy and power easily, and the urinary components are excreted on a daily basis. It is useful as an apparatus and method for estimating the total amount. It can also be applied to health management applications using urine samples such as management of salt intake.
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Abstract
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JP2008512193A JPWO2007123245A1 (ja) | 2006-04-24 | 2007-04-24 | 尿中1日排泄量測定方法及び尿中1日排泄量測定装置 |
US12/298,186 US20090070046A1 (en) | 2006-04-24 | 2007-04-24 | Method of measuring daily urinary excretion and apparatus for measuring daily urinary excretion |
EP07742318A EP2015069A1 (en) | 2006-04-24 | 2007-04-24 | Method of measuring daily urinary excretion and apparatus for measuring daily urinary excretion |
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EP (1) | EP2015069A1 (ja) |
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US20090157328A1 (en) * | 2007-12-14 | 2009-06-18 | Cornell University | Method of determing excretion of sodium and other analytes |
WO2011108534A1 (ja) * | 2010-03-01 | 2011-09-09 | Shinozawa Takao | プロスタグランディンD2とその代謝物およびクレアチニンの分析による筋萎縮性側索硬化症(ALS)の診断方法、治療における薬物の有効性を評価する方法および尿中のtPGDM濃度を推測するシステム |
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JPWO2013021695A1 (ja) * | 2011-08-05 | 2015-03-05 | オムロンヘルスケア株式会社 | 尿成分分析装置および尿成分分析方法 |
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US20090070046A1 (en) | 2009-03-12 |
CN101427133A (zh) | 2009-05-06 |
JPWO2007123245A1 (ja) | 2009-09-10 |
EP2015069A1 (en) | 2009-01-14 |
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