JPH0510948A - Automatic urine inspection device - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide an automatic urine test device that is easy to maintain. [Structure] Reagent part 20a provided at one end of urine test strip 20
Is dipped in the collected urine 51 for a certain period of time, and the degree of color development in the reagent section 20a of the urine test strip 20 placed on the movement test table 23 is optically detected by the urine test sensor 36 provided in the detection section 30. In the automatic urine test device which processes by processing, the distance measuring sensor 3 for measuring the distance to the urine test strip 20.
7 is provided in the detection unit 30, and a control unit that controls the movement inspection table 23 according to the measurement result of the distance measurement sensor 37 and adjusts the distance from the urine inspection sensor 36 to the reagent unit 20a. By providing 19, the moving test table 23 on which the urine test paper 20 is placed can be positioned without contacting the detection unit 30 provided with the urine test sensor 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic urine test device using a urine test strip.

[0002]

2. Description of the Related Art Conventionally, as a urine test method, there is a method in which the reagent part of a urine test strip is immersed in urine in a urine test cup for a certain period of time and the degree of discoloration due to a chemical reaction of the reagent part is visually determined. However, there is a problem in that there are large variations in the test results due to individual differences in the judgment made by human eyes. In order to solve this problem, an automatic urine test device that optically reads the degree of discoloration of the reagent part can be considered.

For example, as shown in FIG. 10, after the urine test paper 20 dipped in urine is positioned along the inclined surface of the moving inspection table 23, the printed board 31 of the detector 30 is provided with a frame 32. The reagent portion 20a of the urine test strip 20 is irradiated with light from the LED 35 provided on the frame portion 32.
By detecting with the photodiode 36 provided in
It is an automatic urine test device that displays test results according to the degree of discoloration of the reagent part 20a.

In the automatic urine test device, the projections 33 and 34 extending from the frame 32 are brought into contact with the lower edge of the moving test table 23 and the facing surface of the urine test strip 20, respectively. , The reagent unit 20 and the photodiode 36 are kept at a constant distance, and the moving inspection table 2
The damage of the photodiode 36 and the like due to the malfunction of 3 was prevented.

[0005]

However, in the above-mentioned automatic urine test device, the urine test paper 20 immediately after being immersed in urine is placed on the moving test table 23 and detected on the moving test table 23 and the urine test paper 20. Since the protrusions 33 and 34 of the part 30 are brought into contact with each other and positioned, the excess urine adhering to the urine test strip 20 adheres to the movement inspection table 23 and the detection part 30.
Therefore, in the above-described automatic urine test device, it is necessary to wash the moving test table 23 and the detection unit 30 for each urine test. In particular, since the detection unit 30 incorporates an electric element such as the photodiode 36, there is a problem in that the cleaning operation is likely to cause an error, adjustment work is troublesome, and maintenance is not easy. The present invention has been made in view of the above problems, and an object thereof is to provide an automatic urine test apparatus that is easy to maintain.

[0006]

In order to achieve the above object, the present invention provides the urine test supported by a support member by immersing a reagent portion provided at one end of a urine test strip in urine collected for a certain period of time and supporting it by a support member. In an automatic urine test device that optically detects and processes the degree of color development in the reagent part of the paper with a urine test sensor provided in the detection part, the distance measurement sensor that measures the distance to the urine test paper is detected. And a control means for adjusting the distance from the urine test sensor to the reagent section by controlling at least one of the support member and the detection section according to the measurement result of the distance measurement sensor. The configuration is provided.

[0007]

Therefore, according to the present invention, the distance measuring sensor of the detecting portion measures the distance to the urine test strip, and at least one of the supporting member and the detecting member is determined according to the measurement result. Since the control unit controls the distance from the urine test sensor to the reagent unit, the detection unit can be positioned without contacting the support member. Therefore, urine does not adhere to the detection unit, cleaning work for the detection unit becomes unnecessary, and adjustment work for the urine test sensor and the like accompanying the cleaning work becomes unnecessary, which facilitates maintenance. ..

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings of FIGS. As shown in FIG. 1, the automatic urine test apparatus according to the present embodiment has an apparatus body 10
Cradle 11 at the bottom of the front and Start button 1 at the top of the front
3. The operation unit 15 including the stop button 14, the display unit 16 and the printer 17 are arranged, and the measuring mechanism unit 18 is incorporated in the inside of the apparatus main body 10. The measuring mechanism unit 18 is provided via the control unit 19. Operation unit 15, display unit 16,
It is connected to the printer 17 (FIG. 2).

The measuring mechanism section 18 comprises a urine test paper storage section 22 for alternately feeding out the urine test paper 20 and the water absorbing paper 21 one by one.
The urine test paper 20 placed on the moving test table 23, which is a support member for mounting and positioning the fed-out urine test paper 20 and the water absorbing paper 21, and the urine test paper 20 mounted on the moving test table 23 are grasped, The arm 26 is immersed in the urine 51, and the detector 30 detects the degree of discoloration in the reagent portion 20a of the urine test strip 20.

The urine test paper 20 has a plurality of reagent parts 20a which react with a specific urine component arranged side by side at the tip, and the number of the reagent parts 20a varies depending on the inspection item.

The water-absorbent paper 21 is a water-absorbent layer 2 made of a material such as a filter paper having excellent water absorbability on one surface in contact with the urine test paper 20.
1a and a water repellent layer 21b made of a material having excellent water repellency, such as vinyl chloride, on its back surface (FIG. 7).

The mobile inspection table 23 has a substantially concave front shape,
Positioning pins 24 for locking the urine test strip 20 and the like are provided at the lower end of the inclined surface (FIG. 4) and two rods 2 are provided.
A motor (not shown) can reciprocate in the horizontal direction via 5, 25.

The arm 26 has a urine test strip 20 at its tip.
Has a chuck portion 27 for grasping the two rods 28, 2
A motor 29 can be reciprocally moved diagonally in the vertical direction via 8 (FIG. 3).

As shown in FIG. 7, the detection unit 30 includes a frame portion 32 attached to a printed circuit board 31 and a urine test sensor 36 including an LED 35 and a photodiode arranged in parallel, and the printed circuit board 31 for distance measurement. Sensor 3
7, the LED 35 and the urine test sensor 3 are provided.
6 are arranged in parallel by the number corresponding to the number of the reagent parts 20a. Then, as shown in FIG. 8, the distance measuring sensor 37 and the urine test sensor 36 are transferred from the A / D converter 41 to the CPU 42 via the multiplexer 40 of the control unit 19.
LED35 is also connected to the CPU4.
Connected to 2. Note that, in FIG. 8, for convenience of description, the detection unit 30 and the urine test strip 2 for the control unit 19 are illustrated.
Only the relationship of 0 is shown.

Next, the operation and operation of the automatic urine test apparatus according to this embodiment will be described. After placing the collected urine test cup 50 on the pedestal 11 of the automatic urine test device, when the start button 13 of the operation unit 15 is pressed to turn it on, the operation unit 1
5, an operation command signal is sent to the control unit 19, and in response to this, a control signal is sent from the control unit 19 to the measurement mechanism unit 18,
The measurement mechanism section 18 is started.

First, as shown in FIG.
One sheet of urine test paper 20 fed from the urine test paper storage unit 22 falls along the inclined surface of the moving inspection table 23 and is locked to the positioning pin 24. Then, when the movement inspection table 23 advances to a predetermined position and stops, the arm 26 descends from diagonally above, and after the chuck portion 27 holds the upper end portion of the urine test paper 20, the arm 26 diagonally above. When moved a little, the moving inspection table 23 moves back and returns to the original position, and as described above, one piece of the absorbent paper 21 fed out from the urine test paper storage section 22 is moved along the inclined surface of the moving inspection table 23. Fall and lock on the positioning pin 24.

Then, the arm 26 descends again, and the reagent portion 20a of the urine test strip 20 is added to the urine 51 in the urine test cup 50.
After soaking for a certain period of time, it returns obliquely upward. afterwards,
When the moving inspection table 23 moves forward and stops at a predetermined position, the chuck portion 27 of the arm 26 opens and the urine test strip 20
Falls along the surface of the water-absorbent paper 21 placed on the movement inspection table 23 and is locked to the positioning pin 24.

At this time, the excess urine adhering to the urine test paper 20 is sucked up by the water absorbing layer 21a of the water absorbing paper 21, and the sucked urine is attached to the moving inspection table 23 by the water repellent action of the water repellent layer 21b. Therefore, it is not necessary to wash the moving inspection table 23, and an appropriate amount of urine adheres to the reagent part 20a, so that the chemical reaction of the reagent part 20a does not vary.

Next, when the movement inspection table 23 further advances, the LED 35 lights up and the multiplexer 4
0 is switched to the distance measuring sensor 37, the distance measuring sensor 37 captures the distance data, and the A / D converter 41 converts the distance data to obtain a converted value. Then, the reference value L and the conversion value, which are input in advance to the CPU 42, are stored in the CPU 42.
When the converted value is not equal to the reference value L and is larger than the reference value L, the CPU 42 further drives the motor (not shown) to move the inspection table 23 forward. On the other hand, when the converted value is not equal to the reference value L and is smaller than the reference value L, the CPU 42 reverses the motor (not shown) to retract the movement inspection table 23.

When the converted value of the distance measuring sensor 37 is equal to the reference value L, the motor is stopped by the instruction of the CPU 42, the multiplexer 40 is switched to the urine test sensor 36, and the reagent of the urine test strip 20 is changed. The reflected light from the portion 20a is detected by the urine test sensor 36, converted by the A / D converter 41 and processed by the CPU 42, and then the measurement result is displayed on the display unit 16 for each test item. , Printed out from the printer 17. The reference value L is the distance from the reagent part 20a to the distance measuring sensor 37 when the urine test sensor 36 is at the optimum position for detecting the reflected light of the reagent part 20a.

Finally, the moving inspection table 23 is retracted and stopped at a predetermined position, the arm 26 is lowered, and the urine test paper 20 and the water absorbing paper 21 are simultaneously held by the chuck portion 27, and then moved obliquely upward. Then, when the movement inspection table 23 returns to the initial position, the chuck portion 27 opens, and the urine test paper 20 and the water absorbing paper 21 are provided with a trash box provided behind the receiving portion 11 (not shown). ), And the urine test ends. After this, the urine test cup 50 is taken out of the pedestal 11 and discarded. After that, the urine test can be continuously performed by performing the same operation.

If a problem occurs during the inspection,
When the stop button 14 of the operation unit 15 is pressed, the operation of the device is stopped at that stage and the initial state is restored. Further, in the above-described embodiment, the water absorbent paper 21 has a plate shape, but the water absorbent paper 21 is not limited to this, and may have, for example, a substantially L-shaped cross section with the lower end bent.

In the second embodiment, as shown in FIG. 9, the urine test is carried out with the urine test paper 20 placed and positioned on the inclined surface of the moving test table 23 in the first embodiment. On the other hand, the upper end of the urine test strip 20 is grasped by the chuck portion 27 of the arm 26 which is a support member movable in the vertical and horizontal directions, and the reagent portion 20 provided at the lower end is attached to the urine 51 in the urine test cup 50. After immersing the arm 26 in a certain period of time and pulling it up, the arm 26 is moved to the left and right, the positioning is performed using the measurement result of the distance measuring sensor 37, and then the urine test is performed. The operation of the detection unit 30 is almost the same as that of the first embodiment described above, and the description thereof will be omitted.

According to this embodiment, the dipped urine test strip 20
Since it is not placed on the mobile inspection table 23, there is an advantage that urine does not adhere to the arm 26, the washing work of the arm 26 is unnecessary, and the maintenance becomes easier.

In the above-mentioned embodiment, the movement inspection table 23 or the arm 26 is moved to adjust the position, but the position is not limited to this, and the detection unit 30 may be moved to adjust the position.

Further, in any of the above-mentioned embodiments,
There is no need to wash the support member and the detection unit, and there is no need to provide a washing device. Therefore, there is an advantage that the automatic urine test device can be simplified and downsized.

[Brief description of drawings]

FIG. 1 is a perspective view of an automatic urine test device according to a first embodiment.

FIG. 2 is an overall block diagram of the automatic urine test device according to the first embodiment.

FIG. 3 is an enlarged perspective view of a main part of the automatic urine test apparatus according to the first embodiment.

FIG. 4 is a schematic diagram for explaining the operation of the automatic urine test device according to the first embodiment.

FIG. 5 is a schematic diagram for explaining the operation of the automatic urine test device according to the first embodiment.

FIG. 6 is a schematic diagram for explaining the operation of the automatic urine test device according to the first embodiment.

FIG. 7 is an enlarged side view of a main part of the automatic urine test device according to the first embodiment.

FIG. 8 is a partial block diagram of the automatic urine test device according to the first embodiment.

FIG. 9 is a side view of a main part of an automatic urine test device according to a second embodiment.

FIG. 10 is a side view of a main part of an automatic urine test device according to a conventional example.

[Explanation of symbols]

19 ... Control part, 20 ... Urine test paper, 20a ... Reagent part, 23
... moving inspection table, 26 ... arm, 30 ... detector, 35 ... L
ED, 36 ... Urine test sensor, 37 ... Distance measuring sensor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Jutaro Nishimura, Chuo-ji, Minami-cho, Shimogyo-ku, Kyoto-shi, Kyoto Science Center Building, Omron Life Science Research Institute Co., Ltd. 17 Nanancho Science Center Building Omron Life Science Laboratory Co., Ltd.

Claims (1)

Claim: What is claimed is: 1. A reagent part provided at one end of a urine test strip is immersed in urine collected for a certain period of time to measure the degree of color development in the reagent part of the urine test strip supported by a support member. In an automatic urine test device that optically detects and processes with a urine test sensor provided in a detection unit, a distance measurement sensor that measures a distance to the urine test strip is provided in the detection unit and the distance measurement sensor is used. An automatic urine characterized by being provided with control means for controlling at least one of the support member and the detection part according to a measurement result of the sensor and adjusting a distance from the urine test sensor to the reagent part. Inspection equipment.