JPH01124750A - Comparing and deciding device for coloration of object to be tested - Google Patents

Abstract

PURPOSE:To display a visual comparative decision result speedily through easy operation by converting the comparative decision result into an electric signal by a wheel for operation which has a color sample for comparison on its top surface and an corresponding uneven code part on its reverse surface. CONSTITUTION:A sample is stuck on a test paper part 51, then a test stick 5 is inserted into an insertion groove part 13, and the coloration test paper part 51 is exposed in a comparison window 33 through an insertion opening part 35. The wheel 2 for operation is rotated for a color comparison between a color sample part 21 for the comparison and coloration test paper part 51. When each stage color comes to right below the coloration test paper part 51 through the rotation of the wheel 3, information that the stage color has is converted into a 4-bit signal. Patterns 41 and 42 of the uneven code part 4 on the reverse surface of the wheel 2 press down a conversion switch and the visual coloration comparative decision result between the coloration test paper part 51 and color sample part 21 for comparison is converted into an electric signal and displayed on a liquid crystal display device.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention is a color comparison determination device for test materials used in biochemical tests (tests for urine sugar, blood sugar, urobilin, etc.). Conventional technology related to a color comparison determination device for a test material used to determine the significance of coloration in which a urine-impregnated test paper (reagent part) develops various colors depending on the sugar content in the urine. FIG. 1 is a perspective view showing a conventional test object color comparison/judgment device.

This color comparison/judgment device includes a sheet-like comparison color sample portion 63 on the outer peripheral surface of a cylindrical case 62 equipped with a cap portion 61.
It has a structure in which . Inside this cylindrical case 62, there is a test stick 6 for, for example, a urine sugar test (a resin sheet with a test paper 65 impregnated with a reagent attached to the tip).
It stores 4. Cap 61 for urine sugar test
The test stick 64 is removed from the cylindrical case 62, and the test paper 65 is impregnated with urine. When impregnated with urine, the test paper 65 exhibits various color reactions depending on the sugar content in the urine. Here, the colored test paper 65 is compared with each color of the comparison color sample section 63 of the cylindrical case 62 to determine the significance of the coloring. In other words, the color sample section 63 has a plurality of arrays of various graded colors (various colors such as negative, positive, etc.) 63a that change depending on the sugar content (grape VS > content) in the urine. Therefore, the color of the test paper 65 By comparing the color with the various graded colors 63a of the color sample section and finding the same color (approximate color), the significance of the coloration, that is, the amount of sugar content in the urine (negative, positive) can be determined.

(c) Problems to be Solved by the Invention In the above-mentioned conventional color comparison/judgment device, a sheet-like color sample is simply pasted on the outer surface of a test stick storage case (cylindrical case). Therefore, in color comparison, while holding the urine-impregnated test stick, bring the colored test paper at the tip close to the color sample area, and compare and judge the coloring state while moving through various graded colors. Become. In other words, during this color comparison operation, the unclean test paper impregnated with urine must be moved close to the color sample area without coming into contact with it. Not only does this require a lot of nerve, but it also tends to cause misalignment between the test paper and the color sample, making it difficult to accurately judge subtle color differences.

Therefore, the applicant of the present application previously proposed a color comparison and determination device as shown in FIG. 6, which does not require holding a test stick. This color comparison and determination device is based on the mounting shaft 7 of the fixed disk 71.
2, a rotary plate 74 equipped with a sheet-like color sample 73 in which a plurality of graduated colors 73a are arranged in a circle is fitted and provided, and a stationary disk 71 is provided with a mounting part 75 on which a colored test paper is placed. ing. This mounting portion 75 is fixed at one end (base end) and set at the other end (tip), that is, at a free end where the mounting shaft 72 corresponds to the rotation orbit of the rotary plate 74. It is set to have a spring property that allows it to tilt (move up and down) by a push-down protrusion 76 provided on the outer periphery. A notch 78 corresponding to the window hole 77 of the color sample 73 is formed between the plurality of adjacent push-down protrusions 76, so that the colored test paper is exposed. To perform a color determination using this color comparison and determination device, a test stick is placed on the mounting section 75, and the color test paper portion at the tip is exposed through the window hole 77 of the color sample 73.

Then, the rotating plate 74 is rotated. At this time, as shown in FIG. 7, the push-down protrusion 76 moves toward the placing section 75,
At the same time, the placing portion 75 is pushed down by the pressing force. When further rotated, the push-down protrusion 76 rides on the placing part 75, and then the push-down protrusion 76 passes through the placing part 75. At this time, the mounting portion 75 is released from the pressing force of the push-down protrusion 76 and returns to its original position by its elastic restoring force. As a result, the test strip 79 in the gi and placement section 75 emerges from the adjacent window hole (cutout section 78) 77 that has been moved by the rotation. A similar rotational operation is performed, and the color of the colored test paper 79 coming out from the window hole 77 is visually compared with each graded color 73a arranged in a circle between the window holes 77 to determine the identity. do. According to this color comparison/judgment device, color comparison is performed by fixing the test stick and rotating the comparison color sample section, making color comparison easier and faster than with conventional comparison/judgment devices. operation can be realized. However, in this color comparison and determination device, the test stick placement part moves up and down violently.
It has been found that not only the reliability at the fulcrum is lowered, but also that the vertically movable drive unit makes the determiner relatively large in size, making it impossible to miniaturize it.

SUMMARY OF THE INVENTION An object of the present invention is to provide a color comparison and judgment device for a test object, which can solve the above-mentioned problems, has a smaller container body, and can perform color comparison and judgment operations simply and quickly.

(d) Means and operation for solving the problem In order to achieve this object, the color comparison and determination device of the test material of the present invention has the following configuration.

The color comparison and determination device for the test object consists of a case body equipped with an insertion section for inserting and removing the color test paper section of the test stick, and a display section for displaying the color comparison and determination results, and a display section of the case body. An operation wheel that is rotatably fitted and arranged, a comparison color sample section that is arranged on the top surface of this operation wheel and has a plurality of graduated colors arranged in a circle, and a case body that corresponds to the wheel. A conversion switch is installed on the underside of the wheel and converts the visual comparison judgment result between the comparison color sample section and the color test paper section into an electrical signal, and a conversion switch is installed on the underside of the wheel and converts the comparison judgment result between the comparison color sample section and the color test paper section into an electric signal. It is comprised of a concave-convex code section that has a concavo-convex pattern corresponding to the graded color and operates a conversion switch, and a display section that causes a display section to display the meaning of the graded color specified by the conversion switch.

When comparing the color of a test object using a color comparison/judgment device having such a configuration, a test stick is inserted and fixed in the insertion portion. In this state, the color test paper section is positioned above the comparison color sample section. Here, the operating wheel is rotated in order to visually compare the coloration of the coloration test paper section and the various graded colors of the color sample section to find a similar color. When the wheel rotates, the comparative color sample section located below the color test paper section simultaneously rotates. When the wheel rotates, the uneven cord part on the bottom of the wheel rotates,
This rotational movement turns on and off a plurality of conversion switches correspondingly arranged below the uneven cord portion. By the ON/OFF operation of this conversion switch, an electrical signal specifying each step color is output, and the meaning of the step color is displayed on the display section via a storage means that stores the meaning of the specified step color. .

For example, the color comparison section has 16 graded colors.
The uneven code portion is provided with uneven patterns corresponding to these 16 step colors. Four conversion switches, which are turned on and off by rotation of the uneven pattern, are provided independently on the rotational trajectory of the uneven pattern. Therefore, depending on each ON/OFF combination, 4bi
t signal can be obtained. In other words, it is possible to specify 16 step colors. As a result, the test stick is simply placed in the insertion section, and color comparison and judgment can be quickly performed by simply rotating the operating wheel with respect to the fixed test stick. Furthermore, since the test strip mounting table does not move up and down as in the past, the device can be made more compact.

(E) Embodiment FIG. 2 is a perspective view showing a specific embodiment of the color comparison and determination device for a test object according to the present invention.

The comparison/judgment device is fitted into a case body 1 that includes an electronic circuit section such as a power supply section and a CPU (central processing unit), and a protruding display section 11 of this case body 1, and has a color sample section 21 on its surface. , uneven cord part 4 on the back side
It is composed of an operation wheel 2 equipped with an operation wheel 2, and an integrated cover 3 that fits onto the case body 1.

FIG. 1 is an exploded perspective view of the color comparison and determination device of the embodiment.

The case body 1 has a flat cylindrical protruding display part 11 protruding from the center of the upper surface, and a rectangular planar protruding part 12 which bulges upward at one end. A test stick insertion groove portion (insertion placement portion) 13 is formed. In the plane of this protruding display section 11, there is a display surface section (to be described later).
LCD hn exit surface) 17, mode key 1a, and start key 1b are arranged. Further, in the hollow interior of the case body 1, as shown in the third sectional view, an electronic circuit section is provided internally. The electronic circuit section includes a circuit board 14, an LS 115 mounted on the circuit board 14, an LCD 16, and a conversion switch. L S I 1 '5 and LC
D 16 (equipped with an LCD cover 17 on the top) is arranged internally in the vertical direction corresponding to the protruding display section 11.

The conversion switch (4 bits) K is disposed correspondingly between the protruding display section 11 and the protruding base part 2. This conversion switch includes a temporary spring 18 whose one end is fixed to the substrate 14.
The switch head 18b is attached to the other end (free end) of a, and the switch head 18b penetrates the upper wall of the case body 1.
The upper helenium should come out. This conversion switch converts the result of visual comparison between the colored test paper section 51 of the test stick 5 and the color sample section (gradual color) 21 described later into an electrical signal. In the embodiment, as shown in FIG. 1, four conversion switches 1, Kg, Kl, and K4 are arranged. For each switch, , K2, K3, K,
are arranged concentrically with respect to the center of the protruding display portion (cylindrical body) 11, at equal intervals in the radial direction, and at equal angles apart in the direction of the circle J4. This results in 4b
The settings are made so that an iL electrical signal can be obtained. In the comparison color sample area 21 to be described later, 16 types of graded colors are arranged, and each graded color can be specified.

The operation wheel 2 is removably fitted into the protruding display portion 11 and is fixed by a cover unit 3, which will be described later. Fifteen grooves 2a are provided on the inner peripheral surface of the wheel 2, and are set to engage with the outer peripheral protrusion (not shown) of the protruding display section 11 to rotate in stages and stop at an accurate position. ing. On the top surface of this wheel 2, there is a color sample fixing groove 2.
b is recessed, and this groove 2ai! Shikomi Headquarters 21
A positioning projection 2C is provided. The comparative color sample portion 21 fitted into the color sample fixing groove 2b is a ring-shaped sheet, and the plane is divided into nine equal parts at equal angles, and a color sample (gradual color) is provided in one of the divisions. In the remaining 8 categories, 8 types of step colors ■, ■, ■, ■, ■, ■, ■, ■ are arranged.

Furthermore, a concave and convex cord portion 4 is provided on the lower surface of the wheel 2, as shown in FIG. The concavo-convex pattern of this concave-convex cord part 4 (part 41 with a thickness of 1°, thin part 42) corresponds to each stage of color ■, ■, ■, ■, ■, ■, ■, ■
The settings should be made accordingly. In other words, the switch sections Kl, Kz, K3, and K4 are operated at predetermined positions (angles) in which the concavo-convex pattern corresponds to each step color. For example, the center of each step color and the border between two adjacent colors are
For example, when it comes to the center of the insertion placement part 13, the uneven pattern (41, 42) and conversion switches Kl, Kz, K:
The relationship between K4 and K4 is set. As shown in FIG. 3, when the wheel 2 rotates, the thick part 4 of the uneven pattern
, Kg , Kj , K, on the switch corresponding to 1, press down to move the switch head 4b to the board 1.
4, and the result of visual comparison between the color test paper section 51 and the comparison color sample section (graded color) 21 is converted into an electrical signal. That is, by rotating the wheel 2, the color test paper portion 51 and the graded colors ■, ■, ■, ■, ■, ■, ■ are visually observed.
■ At one point in time when we find identity with any of the graded colors,
For example, when the start key 1b is pressed, the switch K, which is turned 0N10FF by the concave-convex code section (concave-convex pattern) 4 at that time, inputs the meaning of the selected step color as an electric signal to the electronic circuit section.

As a result, the electronic circuit section (CPU) in the case body 1 reads out what the graduated colors mean, for example, the urine sugar value, and displays it on the display section 17.

The cover unit 3 is removably fitted into the case body 1. A flange portion 32 is provided on the peripheral surface of the flat plate portion 31, and a comparison window 33 from which the coloring test paper portion 51 of the comparison color sample portion 21 appears and the protruding display portion 11 emerges within the plane of the flat plate portion 31. An operation window 34 is provided. In addition, at the end of the cover unit 3 (the end on the side of the comparison window 33), the insertion arrangement portion (groove) 1 is provided.
3 is provided with a concave test stick insertion opening 35 that communicates with the test stick. By engaging the engaging portions 36 provided on both sides of this end portion with the retaining portions (not shown) of the protruding base portion 12, the cover unit 3 is removably attached to the case body 1.
In the installed state, the outer peripheral edge of the wheel 2 is set to protrude outward from the notch 37 of the flange portion 32, allowing the wheel 2 to rotate. .

When comparing and determining the color of a test object using the test object color comparison/judgment device having such a configuration, the mode switch la exposed from the operation window 34 is first pressed. This turns on the power. Here, when the start switch is pressed after attaching blood, for example, to the test paper portion 51 of the test stick 5, a timer in which a reaction time (time required for color reaction) is set is activated. When the timer expires, the test stick 5 is inserted into the insertion groove 13, and the colored test paper section 51 is exposed to the comparison window 33 through the insertion opening 35. The insertion position of the test strip section 51 is regulated by the locking piece section 37 of the comparison window 33, and the test strip section 51 is stopped at an accurate position (see Fig. 3).
. In this state, the color test paper section 51 is located slightly above the comparative color sample section 21. Here, the operation wheel 2 is rotated in order to compare the color between the comparison color sample section (various graded colors) 21 and the color test paper section 51. By rotating this wheel 2, each stage color ■, ■, ■, ■, ■
The center of ,■,■,■ (and the border of two adjacent colors) is the first
When the position X shown in the figure is reached (directly below the color test paper section 51), the information of the graduated color is converted into a 4-bit signal. In other words, either +, Kz, K3, or Ka should be pressed down to the conversion switch corresponding to the uneven pattern (thick wall part and thin wall part) 41, 42 of the uneven cord part 4 on the back surface of the wheel 2, or should not be lowered. Then, the conversion switches Kg, K3, and K are turned ON and 0FFL, and the result of the visual comparison of coloration between the coloration test paper section 51 and the comparative color sample section 21 is converted into an electrical signal. For example, when the center of the graduated color ■ shown in FIG.
N, K, turn off, Km, Ks, 'Kz
, transmits the rololJ signal to 4 bits of K1. Also, when the boundary between the step colors ■ and ■ comes to position X, r
o It becomes 110J. Therefore, when the start key 1b is turned on, for example, when a graded color that is identical to the color test paper section 51 is found by visual inspection, 4-bit information indicating the judgment color is input, and the corresponding blood specific h value is read out. LCD16
will be displayed.

Therefore, the test stick (color test paper section 51) 5 is simply inserted into the insertion groove 13 in the color comparison judgment, and the drive mechanism that moves the insertion groove 13 up and down during the comparison operation as in the past is not required. This is not necessary, and the comparative judgment can be performed easily and quickly.

(f) Effects of the Invention In this invention, as described above, a test stick insertion portion is provided at an appropriate location on the case body, and a comparison color sample is placed on the top surface and a comparison color sample is placed on the bottom surface in correspondence with the insertion placement portion. A rotatable operating wheel is provided with a concave-convex code portion corresponding to each stage color, and a conversion switch is provided corresponding to the concave-convex code portion to convert a visual comparison judgment result into an electrical signal. Therefore, the significance of the graded colors (comparison judgment results) identified by visual inspection can be quickly and easily determined by simply placing the test stick in the insertion section and rotating the operating wheel. can be displayed.

Therefore, when making a comparative judgment, the test stick is simply placed on the insertion location and does not move up and down like in the past, so there is no need for a complicated drive unit, which improves reliability. The present invention has excellent effects that achieve the purpose of the invention, such as miniaturization of instruments.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the color comparison/judgment device of the embodiment, FIG. 2 is a perspective view of the color comparison/judgment device of the embodiment, and FIG. 3 is a cross section showing the color comparison/judgment device of the embodiment. 4 is an explanatory view showing the concavo-convex cord portion, FIG. 5 is a perspective view showing a conventional comparison judgment device, and FIG. 6 is an exploded perspective view showing a comparison judgment device previously proposed by the applicant of the present application. , FIG. 7 is an enlarged sectional view of the main part of FIG. 6. 1: Case body, 2: Operation wheel, 3: Integrated cover, 4: Uneven cord section, 13: Insertion arrangement section, 21: Color sample section for comparison, K: Conversion switch. Patent Applicant Tateishi Denjiq Co., Ltd. Agent Patent Attorney Shigeru Nakamura Nobuo Nakamura Figure 2 1 - Case book $ 2: Shusakuri Whiskey 3: Cover 13: Insertion 1 [Ax 21: Hijo Kazu; 4. B4p Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] (1) A case body equipped with an insertion section for inserting and removing the colored test strip section of the test stick, and a display section for displaying the color comparison and judgment results; A comparison color sample section is provided on the top surface of the operation wheel and has a plurality of graded colors arranged in a circle, and a plurality of comparison color sample sections are provided on the case body corresponding to the wheels, and a plurality of comparison color sample sections are provided on the top surface of the operation wheel. It is equipped with a conversion switch that converts the visual comparison judgment result between the sample area and the color test paper area into an electrical signal, and a concave-convex pattern that is integrally provided on the bottom surface of the wheel and corresponds to the graded color of the comparison color sample area. A color comparison determination device for a test object, which comprises a concave-convex code section for operating a conversion switch, and display means for displaying on a display section the significance of the graded color specified by the conversion switch.