JPH0712916Y2 - Test item color comparison and judgment device - Google Patents

Description

Detailed Description of the Invention (a) Field of Industrial Application The present invention relates to a colorimetric comparison and determination device of a test product used in, for example, a biochemical test (test for urine sugar, blood sugar, urobilin, etc.), For example, the present invention relates to a color comparison / determination device for a test substance used for determining the significance of coloration in which urine-impregnated test paper (reagent part) develops various colors depending on the sugar content in urine.

(B) Conventional Technique FIG. 6 is a perspective view showing a conventional test article coloration comparison / determination device.

This color comparison / determination device has a structure in which a sheet-shaped comparison color sample part 53 is attached to the outer peripheral surface of a cylindrical case 52 having a cap part 51. Inside the cylindrical case 52, for example, a test stick for urine sugar test (a test sheet 55 having a tip end of a resin sheet impregnated with a reagent attached thereto) 54 is housed. In the urine sugar test, the cap 51 is removed, the test stick 54 is taken out from the cylindrical case 52, and the test paper 55 is impregnated with urine. Upon impregnation with urine, the test paper 55 exhibits various color reaction depending on the sugar content in urine. Here, the colored test paper 55 is compared with each color of the comparative color sample section 53 of the cylindrical case 52 to determine the significance of the coloration. That is, the color sample part 53 has a plurality of various graded colors (various colors such as negative and positive) 53a that change depending on the sugar (glucose) content in urine. Therefore, by comparing the color of the test paper 55 with the various graded colors 53a of the color sample section and finding the same color (approximate color), the significance of coloration, that is, the amount of sugar content in urine (negative, negative,
Positive) can be determined.

(C) Problems to be solved by the invention In the above-described conventional test article color comparison / determination device, a sheet-shaped color sample unit is simply attached to the outer surface of the test stick storage case (cylindrical case). . Therefore, in the color comparison, while holding the test stick impregnated with urine, bring the colored test paper at the tip close to the color sample part, and compare and judge the colored state while shifting to various stages of color. Become. In other words, during this color comparison operation, the unclean test paper impregnated with urine must be brought close to the color sample part so that it does not come into contact with it, and it must be moved in the approaching state, and the operator is special in this delicate approach movement work. There is a disadvantage that it is difficult to accurately determine a subtle difference in color because the corresponding alignment between the test paper and the color sample is likely to be misaligned because it is necessary to use such a nerve.

Therefore, the applicant of the present invention has devised a color comparison / determination device that does not require gripping a test stick as shown in FIGS. 7 and 8.

In the color comparison / determination device shown in FIG. 7, a slide groove 62 is provided in the center of the plane of the comparator main body 61, and a color test object mounting table 63 is slidably provided in the slide groove 62. Sheet-like color swatches on both sides of the
64a are arranged in a longitudinal direction) 64 are attached and arranged. In this color comparison / determination device, a test stick (test paper 66) 65 that is colored by impregnating urine is placed on the color test object mounting table 63 and slidably moved with respect to the guide groove portion 62, whereby the color test paper is tested. 66 moves to the color sample part (fixed) 64 arranged in parallel in close proximity to both sides, and during this movement, the two colors are visually compared to determine the sameness (same color).

The color comparison / determination device shown in FIG. 8 has a fixing means (a test stick insertion port portion 73 and a window communicating with the insertion port portion 73) for removably fixing the test stick 72 in the center of the plane of the comparator main body 71. A fixing means 75 consisting of a hole portion 74 is provided, and slide groove portions 76 parallel to both sides of the fixing means 75 are formed.
A comparative color sample part (display plate having various step colors 77a arrayed on the surface) 77 is removably slidably fitted in the slide groove part 76.

In this color comparison / determination device, a test stick 72 that has been colored by being impregnated with urine is inserted through an insertion port portion 73, and a test paper 72a is projected from a window hole portion 74 and fixed. In the color comparison operation,
The comparative color sample part 77 is slid and moved, the color test paper 72a that emerges from the window portion 74 is compared with each step color 77a, and the similar step color 77a is confirmed to make a comparison determination.

In the color comparison / determination device shown in FIGS. 7 and 8 described above, accurate color comparison / determination can be performed by a simple operation of slidingly moving either the color test specimen placement table or the comparison color sample section. Therefore, the inconvenience of grasping an unclean test stick impregnated with urine in the color comparison operation as in the conventional color comparison determination device (shown in FIG. 6) is eliminated. However,
Each of the color comparison / determination devices shown in FIGS. 7 and 8 has a comparison color sample section arranged in the longitudinal direction with respect to the main body of the comparator. In other words, since various graded colors are arranged linearly in the longitudinal direction, when the number of graded colors is large, it is not possible to increase the size of the main body of the comparator, but the slide operation distance becomes longer and the comparison operation becomes longer. It was found to be inconvenient in operation, such as taking too much time.

The present invention solves the above problems and arranges a plurality of various colors in a circle so that the color comparison operation is quick and accurate, and miniaturization can be achieved. The purpose is to provide a container.

(D) Means and Actions for Solving the Problems In order to achieve this object, the test article color comparison / determination device of the present invention has the following configuration.

The color comparison and judgment device for the test object is attached to a fixed plate (fixed disc) having an in-plane mounting shaft and a mounting shaft of this fixed plate.
A comparative color swatch that arranges various graded colors in a circle.
Deployed on the fixed plate corresponding to this comparative color sample,
It consists of a color test specimen placing table having a test stick placing section for placing a stick-shaped test article and guiding it in the vicinity of the comparative color specimen section. It is configured so as to be relatively rotatable.

In the test article color comparison / determination device having such a configuration, for example, the comparison color sample section is rotatably provided on the mounting shaft of the fixed disk, and the color test article mounting table is fixed to the fixed disk. ing. Then, the test paper of the test stick placed on the colored test article placing table is set so as to be positioned on the rotation orbit of the comparative color sample section. In the comparative color sample section, various step colors are arranged in a circle, and a window hole through which the test paper appears is opened between adjacent step colors. In the color comparison operation, the test stick colored by impregnating the test paper with urine is placed on the test stick placement portion of the colored test article placement table. At this time, the color test paper comes out at a position corresponding to the window hole of the comparative color sample part. Here, the comparative color sample part is rotated with respect to the fixed disc. That is, the comparison color sample part is rotated with respect to the color test paper to compare and determine the identity (same color) between the color test paper that emerges from the window and the various graded colors.
Since the various step colors of the comparative color sample section are arranged in a circle, even if the number of step colors is large, they can be arranged in a small space (for example, the upper surface of a disc with a small diameter) and the comparator can be used. Can be achieved. Further, since the comparison color sample is of the rotating type, the color comparison operation is simple and quick comparison determination can be achieved.

(E) Embodiment FIG. 2 is a perspective view showing a concrete embodiment of the test article coloration comparing and judging device according to the present invention.

The coloration comparison / determination device is composed of a fixed disc 1 provided with a coloration test object mounting base 3 and a comparative color sample section 2 rotatably arranged on the fixed disc 1.

As shown in Fig. 1, the fixed disc 1 has a mounting shaft at the center in the plane.
A flat plate disk 11 having a protruding portion is provided with an integrally formed projecting plate 3 of a colored flat plate having a thickness of a rectangular flat plate protruding outward at the peripheral edge portion. A curved step portion 31 is formed along a substantially half circumference of the fixed disc 1 at a connecting portion between the color test specimen mounting table 3 and the fixed disc 1. That is, the stepped portion 31 is formed because the color test specimen mounting table 3 is thicker than the fixed disc 1. The curved step portion 31 exerts a turning guide function for the comparative color sample portion 2 which will be described later. In addition, a plane-shaped “U” -shaped cutting line portion (notch line portion) 32 is formed in the plane of the color test specimen mounting table 3 in the direction of the mounting axis 11 and surrounded by the cutting line portion 32. A portion, that is, a tongue-shaped piece is used as a test stick mounting portion (test material mounting base portion) 33. The test stick (although the test paper 41 impregnated with the reagent is attached to the tip of the resin sheet) 4,
The test stick mounting portion 33 is mounted. The base end of the test stick mounting portion 33 is continuous with the color test material mounting table 3, and the tip end side extending into the fixed disc 1 is separated from the fixed disc 1 and the base end is a stop point. Is set to have a tiltable spring property, that is, an elastic restoring force.

The comparative color sample section 2 is composed of a rotary plate 21 and a sheet-shaped color sample display section 22 attached to the upper surface of the rotary plate 21.

The rotary plate 21 has a diameter substantially the same as that of the fixed circular plate 1, has a fitting hole portion 23 formed in the surface thereof, and is fitted to the mounting shaft 11 so as to be rotatable. Further, a plurality of push-down protrusions 24 having a constant interval are provided on the outer peripheral portion of the rotary plate 21 so as to project in the circumferential direction, and a color test paper is provided at a notch portion 25 located between the adjacent push-down protrusions 24. It is set to show 41. A sheet-shaped color sample display portion 22 having the same diameter is attached to the upper surface of the rotary plate 21. The color sample display portion 22 is a flat ring-shaped body having a hole portion 26 communicating with the fitting hole portion 23 in the center of the plane, and a plurality of window hole portions 27 corresponding to the notches 25 are opened in the plane. Then, the color test paper 41 positioned corresponding to the cutout portion 25 is set to be exposed. Further, the step colors 28 are arranged between the adjacent window holes 27, and the plurality of step colors 28 are arranged in a circle. For each step color 28, for example, a color that changes corresponding to the sugar content in urine, that is, a color that means positive or negative is arranged in a stepwise circular array.

When the color comparison is performed using the test article color comparison / determination device having such a configuration, the test stick 4 colored by impregnating the test paper 41 with urine is attached to the color test article mounting table 3, that is, the test stick 4. Place on the test stick mount 33. The tip of the test stick 4 (on the side of the test paper 41) is the test stick placing part 33.
In the state of contacting the tip of the test paper 41, the test paper 41 is positioned corresponding to the cutout portion 25 of the rotary plate 21 and the window hole portion 27 of the color sample display portion 22,
It has appeared [see FIG. 3 (A) and FIG. 4 (A)].
In the color comparison operation, the rotary plate 21 gripped by fingers is rotated with respect to the fixed disc 1. At this time, the push-down protrusion 24
Contacts the inclined side surface of the test stick placing portion 33, and pushes down the test stick placing portion 33 with a pressing force [see FIG. 3 (A)]. Further, when the rotating plate 21 is rotated, the test stick placing portion 33 is inclined further downward and descends,
The push-down protrusion 24 is located immediately above (above) the test stick mounting portion 33 [see FIG. 3 (C)]. In this state, the test stick placing portion 33 inclines downward with the base end side as a stop point, so that the tip end side (the test paper 41 side) inclines greatly. As a result, a gap is created between the test paper 41 located on the tip side and the lower surface of the pushing-down projection piece 24, and rubbing contact between the pushing-down projection piece 24 and the surface of the test paper 41 is prevented [Fig. 4 (B )reference〕. Further, when the rotary plate 21 is rotated, the push-down projection piece
24 passes the test stick rest 33. At this time, the test stick placing portion 33 is released from the pressing force of the pushing-down protrusion 24, and the elastic restoring force raises and returns to the original position [see FIG. 3 (D)]. As a result, the test paper 41 of the test stick placing portion 33 has a cutout portion that is located opposite to the test paper 41 as a result of the rotation.
It projects from 25 and the window portion 27. Thus, the same rotation operation is sequentially executed, and the color of the color test paper 41 that emerges from the window hole portion 27 and the step colors 28 arranged in a circle between the window hole portions 27 are visually compared. Then, the identity (same color) is determined. When the step color 28 that is similar to the color of the color test paper 41 is confirmed, the rotating operation of the rotary plate 21 is stopped, and the significance of the specified step color 28 is read. For example, with reference to the qualitative table of urine sugar, it is determined whether the corresponding color sample display portion (step color 28) 21 is positive or negative.

In this way, in the color comparison operation, the test stick 4 is fixed, and the comparison color sample part 2 is rotated so as to be compared with the various graded colors 28 arranged in a circle. Even when the number of the various graded colors 28 is large, they can be arranged compactly on a small space, that is, on a small-diameter disk (rotating plate 21). Moreover, the comparison operation is performed by the comparison color sample unit 2
The color comparison operation can be realized simply and quickly because the rotation is performed.

FIG. 5 is an enlarged cross-sectional view of the essential parts showing another embodiment of the test article color comparison and determination device.

In the previous embodiment, an example is shown in which the color test specimen mounting table 3 is integrally fixed to the fixed disc 1 and the comparative color sample section 2 is rotated with respect to the color test specimen mounting table 3. The embodiment exemplifies a case where the comparative color sample section 2 is fixed to the fixed disc 1 and the color test specimen mounting table 3 is rotated with respect to the comparative color sample section 2.

The comparative color sample section 2 is fixed to the tip of the mounting shaft 11 of the fixed disc 1, and the color test specimen mounting table 3 is rotatable between the gaps between the comparative color sample section 2 and the fixed disc 1. It has been deployed. That is, the tip end of the color test specimen mounting table 3 is rotatably arranged on the mounting shaft 11.

In this case, by rotating the color test article mounting table 3, the test paper (test stick 4) 41 placed on the color test article mounting table 3 is cut out at the notch of the upper comparative color sample section 2. It is set so as to project from 25 and the window portion 27. In the case of this embodiment, there is no need for the tilting returnability of the tongue-shaped test stick placing portion 33 of the above-mentioned embodiment, and the structure is further simplified.

(F) Effect of the device In this device, as described above, a comparative color sample unit in which a plurality of step colors are arranged in a circle on a fixed plate (fixed disc),
A color test specimen placing table having a test stick placing section for placing the test stick and guiding it in the vicinity of the comparative color specimen section is provided, and the comparative color specimen section and the color presenting test article placing table are relatively provided. Since it is set to be rotatable, for example, by rotating the comparative color sample part, the various graded colors of the color sample part and the coloration degree of the test paper placed on the color test object mounting table can be determined. It is possible to make a comparison, and it is possible to accurately compare and determine a subtle same color property by a simple rotation operation. Also, the test stick can be easily located near the comparison color sample part by the test stick placement part of the color test sample placement table by a simple operation, and the correspondence between the test sample and the comparison color sample part is easy. Not only can it be obtained, but it also becomes easier to make a visual judgment.

Moreover, in this invention, since various step colors are arranged in a circle, even if the number of step colors is large,
A compact space can be arranged on a disk with a small diameter, that is, it is not possible to achieve miniaturization of the comparator, and quick color comparison can be achieved by simple turning operation. Has excellent effect.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an example test article coloration comparing and determining device, FIG. 2 is a perspective view showing an example test article coloration comparing and determining device, and FIGS. 3 (A) to 3 ( FIG. 3D is an enlarged cross-sectional view of an essential part showing a situation in which the comparative color sample part is rotated.
FIG. 3A is an enlarged sectional view of an essential part showing a state where the test paper is positioned corresponding to the window hole portion, and FIG. 3B is an enlarged view of an essential part showing a state in which the comparative color sample part is rotated. Sectional view, FIG. 3 (C)
Is an enlarged cross-sectional view of an essential part showing a state in which the test stick placing part is inclined downward by the pressing piece of the comparative color sample part;
FIG. 4D is an enlarged cross-sectional view of a main part showing a state in which the push-down piece has passed through the test stick mounting portion and the test stick mounting portion has been raised and returned to the original position. FIG. 4A is a test paper for comparison. FIG. 4 (B) is an enlarged cross-sectional view of an essential part showing a state corresponding to the window hole of the color sample part, FIG. 4 (B) is an enlarged cross-sectional view of the essential part showing a state where the test stick placing part is inclined downward. An enlarged cross-sectional view of an essential part showing another embodiment of the test article color comparison and determination device,
FIG. 6 is a perspective view showing a test article coloration comparison / determination device devised separately, FIG. 7 is a perspective view showing a conventional test article coloration comparison / determination device, and FIG. 8 is another test devised separately. It is a perspective view which shows a thing coloration comparison determination device. 1: Fixed disk, 2: Color sample for comparison, 3: Colored test sample mounting table,
11: Mounting shaft, 22: Color sample display, 25: Notch, 27: Window hole.

Claims (1)

[Scope of utility model registration request] 1. A fixed plate having an in-plane mounting shaft, a comparative color sample unit mounted on the mounting shaft of the fixed plate and arranged in a plurality of circles of various grade colors, and this comparative color sample unit. Corresponding to the above, it is provided on the fixed plate, and is composed of a color test material mounting table having a test stick mounting portion for mounting a stick-shaped test material and guiding it in the vicinity of the comparison color sample portion. A color comparison and determination device for a test article, characterized in that a color sample section and a color test article mounting table are arranged so as to be rotatable relative to each other.