JPS6252464A - Biochemical measuring apparatus - Google Patents

Abstract

PURPOSE:To display a discrimination result on a display device, by a method wherein a measured value is stored in a memory and an average value is calculated to be compared with at least one preset reference value while it is discriminated whether the average value is within a normal range. CONSTITUTION:When a power source switch is turned ON, a measuring apparatus is started and, in a step 4(ST4), it is waited that a measuring switch is turned ON. When the measurement in ST5 has been finished, ST6 is taken; when an average switch is turned ON, the processing on and after ST8 advances. An arithmetic mean value is calculated from the measured value obtained in the past in ST8 and displayed on the numerical value display part 31 of a display device 3. The average value is compared with a reference value if ST10 and, when abnormality is discriminated, an abnormal mark 36a is displayed in ST11. Further, abnormal marks 36b, 26c are successively selected and displayed correspondingly to the degree deviated from a normal range.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application This invention relates to a display form when a measured value in a biochemical measuring device such as a blood sugar needle or a urine sugar needle is an abnormal value.

(B) Conventional technology Conventionally, this type of biochemical measuring device has a display that displays when a measured value becomes a biologically or medically impossible value due to an abnormality in the measuring circuit or an incorrect measuring operation. There is a known device that displays a message indicating that there was a measurement error.

(c) Problems to be solved by the invention However, with this device, if the measured value becomes a pathological value, it does not indicate that fact, so the user can check whether the living body from which the test liquid was taken is normal. In order to determine whether there is an abnormality, it is necessary to judge from the measured value itself displayed numerically on the display, which is inconvenient.

In addition, when determining whether the condition of the living body is normal or not, it may be more accurate to use the average value of the measurements taken several times. This was inconvenient because it was necessary to write down each measurement value in a notebook or the like, and then calculate the average value later for judgment.

The present invention was made in view of the above-mentioned disadvantages, and an object of the present invention is to provide a biochemical measuring device that can easily and accurately determine whether or not a living organism from which a test liquid is collected is normal.

(d) Means and operation for solving the problems As means for solving the above-mentioned disadvantages, the biochemical measurement device of the present invention employs a memory, an average value calculation means, a discrimination means, and a display means. To explain these functions, the memory sequentially stores the measured values, and the average value calculation means reads out all or part of the measured values from the memory and calculates the average value. The determining means compares this average value with at least one preset reference value and determines whether the average value is within a normal range. The display means displays the result of the discrimination means on the display.

(E) Embodiment An embodiment of the present invention is shown in FIGS. 1 to 5 (al to (e)
) as explained below.

FIG. 2 is an external perspective view of the biochemical measuring device 1 according to the embodiment of the present invention, and an LCD (
A display 3 such as a liquid crystal display (liquid crystal display), a power switch 4, a measurement switch 5, and an average value switch 6 are provided. A stick holder 7 is provided at the tip of the device main body 2. When the button 8 is pushed downward, the lid 9 opens, and the stick 11 is inserted into the stick insertion portion 10 from above. When the lid 9 is closed, the stick is removed. 11 is held vertically.

FIG. 1 shows a circuit block diagram of the biochemical measuring device 1. As shown in FIG.

Reference numeral 11 denotes an elongated stick made of synthetic resin or the like, and a test paper 12 coated with a drug is affixed to the tip. The light emitting unit 15 is an LED light emitting element, and is driven by an LED driver 14 receiving a command from a CPU (microcomputer) 19 to irradiate the test paper 12 with light. Light receiving part 1
Reference numeral 6 is composed of a phototransistor or the like, and receives reflected light from the test paper 12. The light-receiving current flowing through the light-receiving section 16 is converted into a voltage signal by a current/voltage converter 17, converted into a digital signal by an A/D converter 18, and then taken into the CPU 19.

The CPU 19 has a function of quantifying chemical characteristic values (concentration of a specific chemical substance, pH, etc.) in the test liquid based on the light reception signal from the light receiving section 16, and displays the measured value obtained as a result of the quantification on the display 3. A function to display, a function to store the measured value in the memory 20, a function to read the measured value from the memory 20 and calculate the average value, a function to compare the average value with a reference value and determine whether it is normal or not, a function to display the determination result. It has a function to display on the display 3, etc.

Further, the power switch 4, measurement switch 5, and average value switch 6 are connected to the CPU 19, and an electronic buzzer 21 is also connected to the CPU 19.

Next, the operation of this biochemical measuring device 1 will be explained in FIGS. 3 to 5.
The following description will be made based on FIGS. (a) to (cl).

First, when the power switch 4 is turned on, the flag F is set to zero [Step S (hereinafter referred to as ST) 1]. Sr.
1, it is determined whether the average value switch 6 is on or not, and if it is on, the value of flag F is subtracted from 1 in Sr1 as a new flag F (therefore, if F is 1, it is zero, F is 1), the process proceeds to Sr1, and when the average value switch 6 is off, the process proceeds directly to Sr1. During measurement, when measuring a value shown by an unused test paper (hereinafter referred to as a blank value), flag F is set to zero, and when a blank value is not to be measured, flag F is set to 1. In addition,
The selected measurement is displayed on the display 3 (
(not shown).

At Sr1, it waits for the measurement switch 5 to be turned on. When the user wants to measure a blank value, he inserts an unused stick 11 into the stick insertion section 10.

When the measurement switch 5 is turned on at Sr1, the process proceeds to Sr5, where measurement is performed and the measured value is stored in the memory. Details of this Sr1 measurement process will be described later.

When the measurement of Sr1 is completed, the process advances to Sr1, and if the average value switch 6 is not on, the process advances to Sr1, and if the measurement switch 5 is not on at Sr1, it returns to Sr1, and the average value switch 6 or measurement switch 5 is turned on. wait for. S
When it is determined in r1 that the measurement switch 5 is turned on, the process returns to Sr1. When it is determined in Sr1 that the average value switch 6 is turned on, the process proceeds to ST8 and subsequent steps.

In Sr8, the CPU 19 reads all or part of the measured values obtained in the past from the memory 20, calculates their arithmetic mean value, and displays the value on the display 3 at 5TIO as shown in FIG. The value is displayed on the numerical value display section 31, and at the same time, a unit display 32 and an average value display mark 33 are displayed.

Furthermore, in 5TIO, this average value is compared with the reference value, and if it is determined that it is abnormal, 5TIO is used in Figure 5 (al
As shown in , the abnormality mark 34 is displayed on the display 3, and the
Proceed to T12, and if it is determined that there is no abnormality, proceed to 5T1
Proceed directly to step 2. At 5T12, the current state is held until the average value switch 6 is turned on, and when the average value switch 6 is turned on, the process advances to Sr1. If it is determined at Sr1 that the measurement switch 5 is not on, it returns to Sr1 and enters a standby state for calculating and displaying the average value, and when it is determined that it is on, it returns to Sr1 and enters a measurement standby state. .

Next, details of the measurement process in measurement ST5 will be explained with reference mainly to FIG.

First, at 5T51, it is determined whether the flag F is 1 or the shooter, and if it is not 1, the blank value measurement after 5T52 is performed, and when it is 1, the blank value measurement after 5T52 is omitted,
Processing after 5T58 is performed.

At 5T52, the blank value of the test paper 12 of the unused stick 11 set in the stick insertion part 10 is measured. At 5T53, it is determined whether the measured blank value is normal or not. If it is not normal, the process proceeds to 5T54, an error display (not shown) is displayed on the display 3, and S
This state is maintained until the measurement switch 5 is turned on at T55.

When the user resets the stick 11 and presses the measurement switch 5, the process returns to 5T52 and the blank value is measured again. In addition, when executing 5T54, the buzzer 21
is also sounded.

On the other hand, if the blank value measured at 5T53 is normal, the process advances to 5T56, displays a timer start request (not shown) on the display 3, and waits for the measurement switch 5 to be turned on (Sr57). .

When the user turns on the measurement switch 5, the timer starts, and as shown in FIG. 5(b), the timer operation display 35 is displayed on the display 3, and the remaining time ( seconds) is displayed (Sr58).

During that time, the user takes out the stick 11 from the stick insertion part 10, immerses its tip in the liquid to be tested that has been collected in advance, and until the timer times out, the stick 11 is removed.
1 into the stick insertion section 10. When the timer times up (Sr59), the CPU 19 determines the value indicated by the test paper 12 that has been immersed in the test liquid and caused a color reaction, calculates the ratio between this and the blank value, and uses it as the measured value (Sr60). .

Next, 5T61 determines whether this measured value is within the range of biologically or medically possible values by comparing it with the reference value, and if it is an impossible value, it is determined by 5T61.
At T62, an error display (not shown) is displayed on the display 3, and at the same time, the buzzer 21 is sounded. On the other hand, if the measured value is a biologically/medically acceptable value, the 5T62 displays the measured value on the numerical display section 31 of the display 3 as shown in FIG. Display 32 is also displayed. Next 5
At T63, this measured value is stored in the memory 20. 5
When the execution of T63 or 5T64 is completed, the process returns to the main routine shown in FIG.

As mentioned above, the reason for using the timer is that test paper 1
2 is immersed in the test liquid and it takes several tens of seconds for the color reaction to complete, so this is to take time.

Next, another embodiment of the present invention will be described with reference to FIG. 5(d). This is different from the above-mentioned embodiment in the display form of the abnormality mark, and if the calculated average value is slightly outside the normal range, the abnormality mark 36
Hereinafter, abnormality marks 36b and 36c are sequentially selected and displayed according to the degree to which the abnormality mark a deviates from the normal range. Abnormal marks 36 a, 36 b,
36c may be made in different colors to make it easier for the user to see. Note that, instead of providing a plurality of abnormality marks 36a, 36b, and 36c of different colors, the same effect can be obtained even if the color of a single abnormality mark changes depending on the degree of abnormality. can.

FIG. 5(e) shows yet another embodiment, in which the display form of the abnormality mark is the abnormality mark 37a,
37b and 37c are displayed sequentially. Further, as in the previous embodiment, abnormality marks 37a, 37b, 37
c can also be of different colors.

In each of the above-mentioned embodiments, if the average value is determined to be an abnormal value, an abnormality mark is displayed on the display in addition to the numerical display. Changes can be made as appropriate, such as by changing the color of the value display, blinking the average value display, and changing the blink cycle depending on the degree of abnormality.

Further, in each of the above-described embodiments, whether or not it is normal is determined based on the average value of the measured values, but it is also possible to determine whether or not each individual measured value is normal.

Furthermore, although each of the above-mentioned embodiments is of a reflective type in which the light receiving section 16 receives reflected light from the test strip 12, the present invention can also be applied to a transmissive type.

(f) Effects of the Invention According to the present invention, there is provided a memory for storing measured values obtained by a quantitative means, an average value calculating means for reading measured values from this memory and calculating an average value, and this average value calculating means. The apparatus is equipped with a discriminating means for comparing the average value obtained by the method with a predetermined reference value and determining whether the average value is normal or not, and a display means for displaying the discrimination result of the discriminating means on a display. Therefore, the user can easily know whether the living body from which the test liquid was collected is normal or not from the determination result displayed on the display. In addition, since discrimination is performed based on the average value of the measured values, the condition of the living body can be accurately determined without being affected by diurnal fluctuations of each measured value, and the user can record the measured values. , there are advantages such as saving the effort of calculating the average value.

[Brief explanation of the drawing]

The drawings each show an embodiment of the present invention, and FIG. 1 is a circuit block diagram of a biochemical measuring device according to the first embodiment of the present invention, and FIG. 2 is a perspective view of the external appearance of the biochemical measuring device. Figure 3 is a flow diagram explaining the operation of the biochemistry measuring device,
FIG. 4 is a flowchart explaining the details of the measurement process in FIG. 3, and FIG. 5(a), FIG. 5(b), and FIG. Diagram explaining the state, No. 5
FIG. 5(d) and FIG. 5(e) are diagrams showing display states of a display of a biochemical measuring device according to another embodiment of the present invention. 3: Display, 12: Test paper, 15: Light emitting section, 16: Light receiving section, 19: CPU, 20: Memory. Figure 5 (G) Figure 5 <b> Figure 5 (C) 5261, vessel

Claims (2)

[Claims] (1) A light emitting part, a test paper that receives light from this light emitting part, a light receiving part that receives light from this test paper, and a signal corresponding to the amount of light received from the test paper that has been immersed in the test liquid and reacted. A biochemical measuring device comprising a quantitative means for receiving the light from the light receiving section and quantifying the chemical characteristic value in the test liquid, and a display for displaying the measured value obtained by the quantitative means, a memory for storing the obtained measurement values;
An average value calculation means that reads measured values from this memory and calculates an average value, and compares the average value obtained by this average value calculation means with a predetermined reference value, and determines that the average value is within a normal range. 1. A biochemical measuring device comprising a discriminating means for discriminating whether or not the discriminating means is present, and a display means for displaying the discrimination result of the discriminating means on a display. (2) When it is determined that the average value obtained by the average value calculating means is not within the normal range, the determining means determines how far the average value is from the normal range, and the displaying means 2. The biochemical measurement device according to claim 1, wherein the degree of the change is displayed in stages.