JPS6214063A - Urine sugar measuring apparatus - Google Patents

Abstract

PURPOSE:To enable the alternation of the ranking range as required, by providing a manual operation means to alter the setting of memory values of a rank range memory means. CONSTITUTION:Light from a light emitting element 22 project to a test paper 25 of a stick 24 mounted at a stick holding section 6 and received with a light receiving element 23. The current of received light flowing through the element 23 is converted 28 into a voltage signal and taken into a CPU26 through an A/D converter 29. The CPU26 has functions or reading a signal from the light receiving element 23 before the immersion of the test paper into urine, reading a urine sugar reaction value after the immersion into the urine, calculating a urine sugar reflectance from the read value of the output of the element 23 before the immersion thereinto and the urine sugar reaction value, reading the urine sugar value corresponding to the value thus obtained from a calibration curve table to determine the urine sugar, extracting the rank belonging to the urine sugar value, altering the upper limit values S1-S4 memorized in a memory in response to the operation of a key switches 11-14 and an arithmetic mode switch 12 and the like. The results are displayed separately on a display 3 and display sections 3a and 3b as one half determined value and determined urine sugar value.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial field of application The present invention relates to a urine sugar measuring device, in particular, a method for classifying measurement results into ranks (
This invention relates to a urine sugar measuring device that displays a semi-quantitative value (as a semi-quantitative value).

(b) Conventional technology For example, conventionally, a urine sugar measuring device has a urine sugar test paper attached to the tip of a stick, which is dipped in urine and undergoes a color reaction, which is then illuminated with light from a light emitting part. The amount of reflected light from the paper is received by the light receiving section, and the amount of reflected light before the urine is immersed is also received and stored in advance in the light receiving section, the ratio of this amount of reflected light is calculated, and the relationship between the pre-stored ratio and the urine sugar value (tested) is calculated. There are devices that read out the currently measured urine sugar value from INIA), identify which rank the urine sugar value belongs to, and display the rank as a semi-quantitative value. The ranks mentioned here are, for example, as shown in the following table.

Table 1 If the urine sugar value obtained by referring to the calibration curve from the actually measured reflected light amount ratio is, for example, 80 mg/dff, then in the table above, it is a semi-quantitative value, that is, the rank is 10, and this is the value shown on the display. will be displayed.

(c) Problems to be Solved by the Invention In conventional urine sugar measuring devices, the semi-quantitative range, that is, the upper and lower limits of each rank are stored as fixed values (eg, Table 1 above). However, at present, the accuracy of urine sugar measuring devices is not necessarily good, and there are variations depending on test strips, etc., and there are also large individual differences. For example, in Table 1 above, the urine sugar value extracted from the calibration curve is 5 mg/d i and 4
In the case of 9mg7dl, the measurement results are - in both cases. However, for some patients, 5 mg/d 1 and 49 mg/dj
! may be considered the same, but for other patients 5 mg
/dl may be -, but 49mg/dl is 5mg
/dβ may not be the same. Therefore, it may be desirable to change the semi-quantitative range depending on the subject, symptoms, etc. under the guidance of a doctor.

However, conventional urine sugar measuring devices select average values suitable for various cases and store fixed range values as semi-quantitative value ranges, making it impossible to provide detailed responses. There was a problem.

In view of the above, an object of the present invention is to provide a urine sugar measuring device in which the range of ranking can be changed as necessary.

(d) Means and action for solving the problems The urine sugar measuring device of the present invention includes a light emitting section, a urine sugar test strip that receives light from the light emitting section, and a urine sugar test strip that receives light from the light emitting section. a light-receiving section; a ratio calculation means for calculating a ratio between the amount of light received by the light-receiving section from the urine sugar test strip before immersion in urine and the amount of light received from the reaction urine sugar test strip after immersion in urine; and each ratio value. A urine sugar determination means stores in advance the urine sugar value corresponding to the ratio value, reads out the urine sugar value corresponding to the ratio value calculated by the ratio value calculation means, and ranks the urine sugar value. rank range storage means for storing the range values of each rank; and a rank for extracting to which rank the urine sugar value quantified by the urine sugar value quantification means belongs to which is stored in the rank range storage means. It is comprised of an extraction means, a rank display means for displaying a symbol according to the extracted rank, and a manual operation means for changing the setting of the range value stored in the rank range storage means.

In this urine sugar measuring device, when changing the semi-quantitative range, the range value is changed by the manual operation means.

(E) Examples The present invention will be explained in more detail with reference to Examples below.

FIG. 1 is a perspective view of a urine sugar measuring device in which the present invention is implemented. This urine sugar measuring device 1 has a display 3, a power key switch 4, and a measurement key switch 5 on the outer surface of a case 2. In addition, a stick holder 6 is provided at the upper end of the case 2, and a button 7 is held downward. When pressed, the lid 8 opens and the stick is inserted into the stick insertion portion 9 from above, and when the lid 8 is closed, the stick is held vertically. Further, inside the case 2, a light emitting/light receiving section, an electronic circuit section, a battery, etc. are housed.

Further, at the lower end of the case 2, there are key switches 11, 12, etc., which are normally covered by the cover 10.
, 14 are provided. Key switch 11.12,・
..., 14 are key switches for specifying the type (rank) of each semi-quantitative value, and the key switch 15 is an arithmetic mode switch for switching modes of addition and subtraction. For example, when the key switch 12 specifying ± is turned on while the calculation mode switch 15 is in the addition mode, the upper limit of the semi-quantitative value is added by 5 mg/dl.

Although not shown, the cover 10 can be locked with the key switches 11, . . . , 15 covered by a key 16.

FIG. 2 is a circuit block diagram of the urine sugar measuring device 1. Components with the same numbers as in FIG. 1 indicate the same components.

The photoelectric detection unit 21 is composed of a light emitting element 22 and a light receiving element 23. Light from the light emitting element 22 is projected onto the test paper 25 of the stick 24 attached to the stick holding part 6 and is reflected. It is designed to receive light.

The light emitting element 22 is driven by the LED driver 27 according to a command from the CPU 26 . Further, the light-receiving current flowing through the light-receiving element 23 is converted into a voltage signal by a current/voltage converter 28, converted into a digital signal by an A/D converter 29, and then taken into the CPU 26.

The CPU 26 has a built-in memory that stores the calibration curve table and the upper limit values of each semi-quantitative rank S, , S, , S5, S4.
is now memorized.

The CPU 26 controls the light receiving element 23 before dipping the test strip in urine.
A function to read the output of the light receiving element 23, that is, a urine sugar reaction value, after a predetermined reaction time has elapsed after immersion in urine, and a function to read the output of the light receiving element 23 before immersion in urine and the urine sugar level. A function to calculate the urine sugar reflectance (ratio value) from the ratio value, a function to read the urine sugar value corresponding to the ratio value from the calibration curve table and quantify the urine sugar value, a function to extract the rank to which the urine sugar value belongs. , the key switches 11, . . . , 14 and the operation mode switch 15, the upper limit value St is set.

It has a function to change S2, Sl, S4, etc.

Further, as for the result values obtained by the CPU 26, a semi-quantitative value is displayed on the display section 3a of the display device 3, and a quantitative urine sugar value is displayed on the display section 3b.

Next, the operation of the urine sugar measuring device 1 according to the above embodiment will be explained with reference to the flowchart shown in FIG.

The power switch 4 is turned on, and initial processing such as clearing the memory of the CPU 26 is performed [step ST
(hereinafter referred to as ST) 1], next, the reference upper limit values S1, S2, S3, and S4 of each urine sugar rank are read (Sr1). For example, if the urine sugar rank is as shown in Table 1, S+=50
,S,t-75,S.

=100.54=250 are respectively stored in the memory.

Subsequently, a display instructing to "set test strips" is displayed on the display section 3C of the display 3 (Sr3), and during normal measurement, the tester waits at Sr1 for the measurement switch 5 to be turned on. Until the measurement switch 5 is turned on, the determination of “measurement switch on” by Sr1 is NO, and then the calculation mode switch 1 is turned on.
Determine whether 5 is in addition mode or subtraction mode (
Sr1).

When this calculation mode switch 15 is off, it is in addition mode, and when it is on, it is in subtraction mode. Key switch 11,...
..., 14 are not turned on, Sr
1, Sr1, Sr1, and Sr9 are all No, the process moves to 5T22, and the rank value is displayed on the display 3. This rank value is the reference upper limit value S read by Sr1.
1. . . . S4, for example, - on the display section 3a.
, S on the display section 3b, and similarly, shi and 82, ten and Sl, and ++ and 34 are displayed in chronological order on the display sections 3a and 3b, respectively. Looking at this display, the measurer determines whether or not to change the rank range. When changing the settings, for example, change the upper limit values of - and +511 rg/d l from the values in Table 1.
If you want to increase the
Turn key switch 11 (day key) on while leaving it off. As a result, the determination of Sr1 becomes YES, α (=5 mg/dl) is added to Sl stored in the memory, and it is stored as a new S (STIO), and the changed range value of - rank, 0 to 55mg/dl is displayed (
Sr22), in this case, the lower limit of the rank will also be automatically 5.
mg/d I! The range value of the rank is 56~
It becomes 76mg/di'.

Next, in the same manner, the key switch 12 (hard key) is turned on while the calculation mode switch 15 is kept off.

Due to this ON, the judgment of Sr1 becomes YES, and α (-5 mg/di) is added to St stored in the memory and stored as a new S2 (STII). Then, the changed range value of the rank is 56 ~81 mg/d A' is displayed (Sr22), and at this time, the lower limit of 10 ranks is automatically 5 mg/d j! The range of ten ranks is 81 to 100 mg/dl.

When changing the upper limit values of + and 10 for other ranks, turn on the key switches 13 and 14, respectively. This results in
S3 and S4 are each added with α (=5 mg/dl) and newly stored (ST12.5TI3), and the changed rank value is also displayed (ST22).

If it is desired to make the added value larger than α, it is sufficient to turn on the same setting key switch a corresponding number of times.

For example, set the upper limit of -rank to 2α (= 10mg/dj
' ) If you want to increase the value, turn on the key switch 11 twice.

For example, if the user wants to lower the upper limit values of the ranks 10 and ++ by 5 mg/dl from the values in Table 1, the measurer turns on the calculation mode switch 15 and also turns on the key switch 13. As a result, ST5 decision is YES.
The determination of SSTI 6 is YES, and α (= 5 mg/d l ) is subtracted from S stored in the memory,
It is stored as a new S (ST2Q).

And the changed range value of 10 ranks is 76 to 95 mg/d.
l is displayed (ST22). At this time, the lower limit of +10 is automatically subtracted by 5 mg/dl, and ★+
The rank range is 96-250mg/dj! becomes.

Next, the key switch 14 is turned on while the calculation mode switch 15 is kept on. This turns on 5T14.
5T15.5T16 judgment is No, 5T17 judgment is Y
ES, and from S4 stored in memory α(=5
mg/di) and store it as a new S4 (S
T21), and the changed range value 96~
245mg/dj! is displayed (ST22).

When changing the upper limit values of - and - of other ranks in the direction of lowering them, the key switches 11 and 12 may be turned on, respectively, while keeping the calculation mode switch 15 on. As a result, 5T14 or 5T15 becomes YES, and Sl
cr=5mg/d1 is subtracted from S2, or α-5mg/+H! is subtracted and newly stored (
STlB, 5T19) As described above, the key switch 11
,..., by selectively operating 15,
The upper limit value for each rank can be changed upward or downward.

When the setting change is completed, the measurer attaches the stick 24 to the stick holder 6 and turns on the measurement switch 5 in order to proceed to measurement.

With this ON, the determination in ST4 becomes YES, and then the amount of reflected light from the test paper 25 is taken in through the light receiving element 23, the current/voltage converter 28, and the A/D converter 29, and the blank value (before coloring) is taken in. value) is read (ST23).

Next, the instruction to “prepare urine cup and urine dipping” appears on display 3.
C (ST24). Seeing this display, the person taking the measurement prepares the urine cup and urine dipping, and then presses the measurement switch 5.
Perform the second operation.

When the measurement switch 5 is turned on, the judgment of 5T25 is YE.
S, the display section 3c displays an instruction to "dip in urine", and the tester dips the urine sugar test strip 25 in the urine (ST2).
6), a 30 second timer t is activated (ST27).
, Then, it is determined whether the 30 second timer t has timed up, that is, whether 30 seconds have elapsed (ST2
8). When the 30 second timer t times up, assuming that 30 seconds have elapsed, the amount of reflected light from the test paper 25 is determined by the light receiving element 2.
3, and the urine sugar reaction value is read (ST2
9). Next, calculate the urine sugar reflectance from this urine sugar reaction value and the blank value that has already been read and stored.5T30)
From the obtained urine sugar reflectance, the urine sugar value Nr is calculated and quantified with reference to a calibration curve table stored in the CPU 26 (ST31).

Next, the process moves on to extraction processing to determine which semi-quantitative rank the urine sugar value Nr belongs to. First, the urine sugar value Nr is compared with the upper limit value S1 of one rank to determine whether the urine sugar value Nr is less than or equal to S (5T32).If it is less than or equal to S+, the determination is YES, and a - is displayed (5T33), and the urine sugar value Nr is displayed (ST41).

If the urine sugar value Nr is not less than S1 at 5T32, it is then determined whether it is greater than Sl and less than or equal to SZ (ST34
). If it is 82 or less, the determination is YES, the force is displayed on the display section 3a (ST35), and the process moves to 5T41.

In ST34, if the urine sugar value Nr is not less than S2, then it is determined whether the urine sugar value Nr is greater than S2 and less than $3 (Sr16), and if it is less than Ss, 10 is displayed on the display section 3a Sr17). ), move on to Sr41.

At 5T36, if the urine sugar value Nr is not less than S, then it is determined whether the urine sugar value Nr is greater than S and 84 or less.
r18), S, In the following cases, ++ should be displayed on the display section 3a.Sr19), Go to Sr41.

At 5T38, if the urine sugar value Nr is not lower than S4, +++ is displayed on the display section 3a (5T40), and the process moves to 5T41.

In the above embodiment, the upper limit value is changed to change the range value of the semi-quantitative rank, but the lower limit value of each rank may be changed.

Further, in the above embodiment, the calculation mode switch 15 is provided to change the settings, and the addition mode and subtraction mode can be specified.
Although the predetermined value α is added or subtracted, the calculation mode switch 15 is omitted, the initial value is set to the lowest value, and α is added or subtracted each time the key switches 11, . . . , 14 are operated. You can add , or conversely, set the initial value to the highest value and then press key switch 11,...
α may be subtracted every 14 operations.

Also, instead of the key switches 11, . . . , 14,
A slide switch is provided to specify each rank -1±, +, ++, and a special key switch for addition/subtraction is provided, and each time this special key switch is operated, the slide switch is set to the upper limit of the rank. etc. may be added or subtracted by a predetermined value α.

(F) Effects of the Invention According to this invention, the range value of the semi-quantitative rank can be freely changed by setting, so even when making semi-quantitative measurements such as -1±, +, ++, etc. It is possible to set a range value for each rank in accordance with the paper situation, etc., and it is possible to perform detailed measurements in accordance with reality.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of a urine sugar measuring device according to an embodiment of the present invention, FIG. 2 is a block diagram of the same urine sugar measuring device, FIG.
FIG. 4 is a flow diagram for explaining the operation of the urine sugar measuring device. 11, 12, 13, 14: Key switch for changing rank settings 22: Light emitting element, 23: Light receiving element, 25: Urine sugar test strip, 26: CPU.

Claims (1)

[Claims] (1) A light emitting part, a urine sugar test strip that receives light from this light emitting part, a light receiving part that receives light from this urine sugar test paper, and a urine sugar test strip that receives light from the urine sugar test paper before being immersed in urine. a ratio calculation means for calculating the ratio between the amount of light received and the amount of light received from a reaction urine sugar test strip after immersion in the urine, and a urine sugar value corresponding to each ratio value being stored in advance, and the ratio calculation means A urine sugar value quantification means for reading out and quantifying the urine sugar value in accordance with the calculated ratio value; and a rank range storage means for storing the range value of each rank in order to classify the urine sugar value into ranks. , rank extraction means for extracting to which rank stored in the rank range storage means the urine sugar value quantified by the urine sugar value determination means belongs, and a rank display that displays a symbol according to the extracted rank. What is claimed is: 1. A urine sugar measuring device comprising: a manual operation means for changing the setting of the range value stored in the rank range storage means.