Sensor unit, colorimetric test strips, and animal toilet unit

Abstract

This technology provides a method for easily and quickly detecting multiple types of components during colorimetric inspection, while also enabling accurate detection of those components. [Solution] The sensor unit 100 is configured to include an inlet 111 for receiving the test solution, a plurality of test areas 112a where multiple types of colorimetric reagent pieces are arranged, and an inflow path 113 configured to allow the test solution received at the inlet 111 to flow into each of the plurality of test areas 112a, and to synchronize the timing of the inflow of the test solution into each test area 112a.

Description

Technical Field

[0001] The present disclosure relates to a sensor unit, a colorimetric test strip, and an animal toilet unit.

Background Art

[0002] Urine tests are useful for understanding the health status of a living body. As one method of urine testing, a test by colorimetry (hereinafter also referred to as "colorimetric test") is known. In the colorimetric test, a test solution (e.g., urine) is brought into contact with a pre-prepared colorimetric reagent strip, and the degree of color change of the colorimetric reagent strip is measured to detect the concentration in the liquid of the component that reacts with the colorimetric reagent strip.

[0003] As a test device that can be used for colorimetric tests, for example, there is one that has a plurality of colorimetric analysis regions and flow paths for guiding the test solution to each region, and is configured to be able to perform tests using a plurality of types of colorimetric reagent strips simultaneously and in parallel (see, for example, Patent Document 1). By using such a test device, it becomes possible to simply and quickly perform detection of a plurality of types of components during colorimetric tests.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In colorimetric testing, the test solution is supplied to the area where the colorimetric reagent piece is placed, and the test is performed by bringing the test solution into contact with the colorimetric reagent piece. Therefore, when performing tests with multiple types of colorimetric reagent pieces simultaneously, if there is a time difference in the timing of supplying the test solution to each colorimetric reagent piece, the immersion time for each colorimetric reagent piece will vary, which may negatively affect the accuracy of the test. In this regard, in the testing apparatus with the above configuration, the flow path lengths to each colorimetric analysis area are different, and it is thought that supply variations will naturally occur due to these differences in flow path lengths.

[0006] This disclosure provides a technology that enables the simple and rapid detection of multiple types of components during colorimetric inspection, while also ensuring high accuracy in such detection. [Means for solving the problem]

[0007] According to one aspect of this disclosure, An inlet for receiving the test fluid, Multiple test areas, each containing several types of colorimetric reagent pieces, An inflow path is configured to allow the sample fluid received at the inlet to flow into each of the multiple testing areas, and to synchronize the timing of the inflow of the sample fluid into each testing area. A sensor unit equipped with the following is provided. [Effects of the Invention]

[0008] According to this disclosure, it is possible to easily and quickly detect multiple types of components during colorimetric inspection, and even in such cases, it is possible to detect those components with high accuracy. [Brief explanation of the drawing]

[0009] [Figure 1] This is an exploded perspective view showing an example of the overall configuration of a sensor unit according to one embodiment of the present disclosure. [Figure 2] This is a plan view showing an example of the main components of a sensor unit according to one embodiment of the present disclosure. [Figure 3] A perspective view showing an example of the configuration of a colorimetric test paper used in a sensor unit according to one embodiment of this disclosure. [Figure 4] This is a schematic side cross-sectional view showing an example of the general configuration of an animal toilet unit according to one embodiment of the present disclosure. [Figure 5] Figure 4 is an explanatory diagram (part 1) schematically showing an example of the main components of the animal toilet unit, and is an exploded perspective view showing an example of the components inside the pull-out tray section of the animal toilet unit. [Figure 6] Figure 4 is an explanatory diagram (part 2) schematically showing an example of the main components of the animal toilet unit, and is an exploded perspective view showing an example of the configuration of the sensor module in the animal toilet unit. [Figure 7] This is an explanatory diagram (part 3) schematically showing an example of the main components of the animal toilet unit shown in Figure 4, and is a side cross-sectional view showing an example of the configuration of the guide channel section in the animal toilet unit. [Figure 8] Figure 4 is a schematic explanatory diagram (part 4) showing an example of the main components of the animal toilet unit, where (a) is a plan view showing an example of the configuration of the guide channel section in the animal toilet unit, (b) is a perspective view showing an example of the configuration of the shape correction member corresponding to the guide channel section, and (c) is a side cross-sectional view showing an example of the configuration of the shape correction member. [Figure 9] This is a schematic diagram illustrating an example of the general configuration of a health support system according to one embodiment of the present disclosure. [Figure 10] This is a schematic diagram illustrating an example of the general configuration of a health support system according to another embodiment of the present disclosure. [Figure 11] Figure 10 is a flowchart illustrating a specific example of the processing operation in the health support system. [Figure 12] Figure 10 is an explanatory diagram illustrating a specific example of the advice information provided in the health support system. [Modes for carrying out the invention]

[0010] The embodiments of this disclosure will be described below with reference to the drawings.

[0011] (1) Configuration example of the sensor unit First, a configuration example of the sensor unit according to this embodiment will be described. The sensor unit described in this embodiment is configured to function as an inspection device that can be used for colorimetric inspection of a test liquid. As an example of the test liquid, urine excreted from a living body (human or animal) can be mentioned, but it is not limited to this, and any substance other than urine may be used as long as it is a target for colorimetric inspection.

[0012] FIG. 1 is an exploded perspective view showing an example of the overall configuration of the sensor unit according to this embodiment, and FIG. 2 is a plan view showing an example of the main part configuration of the sensor unit.

[0013] (Overall configuration) As shown in FIG. 1, the sensor unit 100 according to this embodiment is roughly divided into a colorimetric inspection unit 110, a cover member 120, and an electrochemical measurement unit 130. These colorimetric inspection unit 110, cover member 120, and electrochemical measurement unit 130 are all formed in a rectangular plate shape with a notch in part of their planar shapes, and are laminated and integrated to form the sensor unit 100.

[0014] Here, the case where the sensor unit 100 includes the electrochemical measurement unit 130 is taken as an example, but the electrochemical measurement unit 130 is not an essential configuration. That is, if the sensor unit 100 includes at least the colorimetric inspection unit 110 and the cover member 120, it can correspond to colorimetric inspection as will be described in detail later.

[0015] (Colorimetric inspection unit) The colorimetric inspection unit 110 is formed of, for example, a resin material, and as shown in FIGS. 1 and 2, includes an inlet 111, a test paper placement area 112, an inflow path 113, a ventilation area 114, and a color sample placement area 115.

[0016] The inlet 111 receives the liquid to be subjected to colorimetric inspection and is configured to have an opening formed on one end face of the sensor unit 100. In this embodiment, the planar shapes of the colorimetric inspection section 110, the cover member 120, and the electrochemical measurement section 130 have notches in some parts, and the inlet 111 is located in the notched portion. As a result, as will be described in detail later, the opening position of the inlet 111 is located at a height corresponding to the location where the ventilation area 114 and the ventilation holes 121 form air vents.

[0017] The test strip placement area 112 is the area where the colorimetric test strip 200, which will be described in detail later, is placed, and is formed in the shape of a groove with a long, planar shape on which the colorimetric test strip 200 can be placed. The colorimetric test strip 200 placed in the test strip placement area 112 is equipped with multiple types of colorimetric reagent pieces 202, as will be described in detail later. Therefore, the test strip placement area 112 has multiple test areas 112a within its area, which are areas on which multiple types of colorimetric reagent pieces 202 are placed. In other words, the test strip placement area 112 is configured to include multiple test areas 112a.

[0018] Since the multiple test areas 112a correspond to each colorimetric reagent piece 202 on the colorimetric test paper 200, each is arranged within the test paper placement area 112 at a predetermined interval. Between each test area 112a, there may be rib portions that function as partitions to suppress the movement of the test solution between them by isolating each test area 112a, or water-repellent regions (not shown) that achieve a similar function.

[0019] Furthermore, a hygroscopic member (not shown) may be placed at the corresponding location in each inspection area 112a. The corresponding location here refers to a location in contact with the inspection area 112a or a location near the inspection area 112a. The hygroscopic member is not particularly limited as long as it has hygroscopic properties, and the forming material of the colorimetric inspection section 110 may be made hygroscopic, or it may be attached to the colorimetric inspection section 110 separately from the forming material. In addition, the base material 201 of the colorimetric test paper 200, which will be described later, may also have hygroscopic properties. If such a hygroscopic member is placed at the corresponding location in the inspection area 112a, it will be possible to suppress deterioration of the colorimetric reagent piece 202 placed in the inspection area 112a due to humidity.

[0020] The inflow path 113 directs the sample fluid received at the inlet 111 into each of the multiple test areas 112a, and is formed in a groove shape that constitutes a flow path connecting the inlet 111 and each test area 112a. Furthermore, the inflow path 113 is configured to synchronize the timing of the sample fluid's inflow into each test area 112a.

[0021] Specifically, in this embodiment, the inflow path 113 includes a common flow path 113a extending along the longitudinal direction of the test paper placement area 112, and a plurality of connecting passages 113b extending individually from the common flow path 113a to each of the test areas 112a, in order to synchronize the timing of the inflow of the test liquid into each test area 112a.

[0022] The common channel 113a functions as a storage area for the test fluid received at the inlet 111 by filling its channel with the test fluid. Each connecting passage 113b connects the common channel 113a and each inspection area 112a with equal length. With this configuration, the test fluid filling the common channel 113a, which is the storage area, flows into each of the multiple inspection areas 112a via each connecting passage 113b in a timely manner.

[0023] In particular, when the fluid to be tested flows into each test area 112a, if multiple test areas 112a are arranged side by side on the side of the common channel 113a, which is the storage area, in the direction of gravity, the fluid to be tested will flow into each test area 112a as the liquid level rises, making it possible to easily and reliably synchronize the timing of the fluid to flow into each test area 112a.

[0024] In this example, the inflow path 113 has a common channel 113a which is a storage area and multiple connecting channels 113b, but it is not necessarily limited to this, and the inflow timing may be synchronized by other configurations.

[0025] For example, the inflow path 113 may be configured such that the inflow resistance of the test liquid to each of the multiple inspection areas 112a differs in accordance with the difference in the flow path length to each of the multiple inspection areas 112a. Specifically, inflow paths 113 with different flow path lengths branch from the inlet 111 to each inspection area 112a, and the inflow resistance of the test liquid may be differed by varying the cross-sectional area of ​​the flow paths or by applying hydrophilic or hydrophobic treatment to the flow paths in accordance with the difference in flow path length, thereby aligning the inflow timing to each inspection area 112a based on the difference in inflow resistance.

[0026] The ventilation area 114 is formed on the side opposite each connecting passage 113b of the inflow path 113 and each inspection area 112a, and in cooperation with the ventilation holes 121 of the cover member 120 described later, it functions as an escape hole for air when the test liquid flows into each inspection area 112a. Note that the ventilation area 114 is not limited to the embodiment shown in the figure and may be configured in other ways as long as it functions as an air escape hole.

[0027] The color sample placement area 115 is formed as a groove with a long, planar shape similar to that of the test paper placement area 112, and is located parallel to the test paper placement area 112. As will be described in detail later, a reference color sample corresponding to the colorimetric reagent piece 202 is placed in the color sample placement area 115.

[0028] Furthermore, both the test paper placement area 112 and the color sample placement area 115 are formed in a groove-like, unsealed state. This configuration allows the colorimetric test paper 200 placed in the test paper placement area 112 and the reference color sample placed in the color sample placement area 115 to be visible from the outside (i.e., outside the groove).

[0029] (Cover component) As shown in Figure 1, the cover member 120 is a thin plate-like structure formed to cover the main surface of the plate-shaped colorimetric inspection section 110, specifically the side on which the test paper placement area 112, inflow path 113, color sample placement area 115, etc., are formed. However, the cover member 120 does not cover the entire surface of the main surface, but has ventilation holes 121 formed to communicate with the ventilation area 114 of the colorimetric inspection section 110. The shape of the ventilation holes 121 is not limited to a specific form, as long as they communicate with the ventilation area 114, that is, to ensure airflow between the ventilation area 114 and the outside of the cover member 120.

[0030] Furthermore, the cover member 120 is made of a light-transmitting material so that the colorimetric test paper 200 placed in the test paper placement area 112 and the reference color sample placed in the color sample placement area 115 can be seen even when one main surface of the colorimetric inspection section 110 is covered. Specifically, the cover member 120 is made of, for example, a thin, transparent resin film that is light-transmitting. However, it is not necessarily limited to this, and other configurations are acceptable as long as it is a thin, light-transmitting material. Note that the corresponding area of ​​the color sample placement area 115 is not an immersion area, so it is not necessarily required to cover it with the cover member 120, and an opening may be provided in the cover member 120.

[0031] The cover member 120 can be attached to one main surface of the colorimetric inspection unit 110, for example, by using adhesive tape. However, it is not necessarily limited to this, and other configurations are also acceptable, such as using fasteners like clips or screws.

[0032] When the colorimetric inspection unit 110 is attached to one main surface, the cover member 120 covers each inspection area 112a of the colorimetric inspection unit 110 so as to seal it. In other words, the cover member 120 functions as a covering member positioned at corresponding locations in the inspection area 112a. The corresponding locations here refer to the open locations in the groove-shaped inspection area 112a. If such corresponding locations are covered by the cover member 120 as a covering member, it becomes possible to suppress deterioration of the colorimetric reagent pieces 202 on the colorimetric test paper 200 due to humidity from the time the colorimetric test paper 200 is placed in the test paper placement area 112 until the start of the colorimetric inspection using the colorimetric test paper 200 (for example, when the sensor unit 100 usable for colorimetric inspection is stored).

[0033] (Electrochemical Measurement Department) The electrochemical measurement unit 130 is attached to the colorimetric inspection unit 110 and the cover member 120 in order to enable inspection using electrochemical measurement in addition to colorimetric inspection.

[0034] Electrochemical measurement refers to measurements performed electrochemically. It involves electrolyzing substances contained in urine (a test solution) under specific conditions, and using the resulting electrochemical reactions (e.g., oxidation-reduction reactions) to measure the concentration of specific components in the urine. These specific components include uric acid, urinary glucose, albumin, creatinine, ketones, and glucose. The concentration of specific components in urine is known to be measured, for example, using the three-electrode method. The three-electrode method is a technique that combines three electrodes—a working electrode, a counter electrode, and a reference electrode—to perform electrochemical measurements. However, the method is not limited to the three-electrode method, and other methods may also be used to measure the concentration of specific components.

[0035] To accommodate such measurements, the electrochemical measurement unit 130 is formed, for example, by a combination of resin material and metal wiring, and as shown in Figure 1, it is configured to include an inlet 131, an electrode area 132, an inflow path 133, a ventilation path 134, and a connection terminal 135, similar to those of the colorimetric inspection unit 110.

[0036] The electrode region 132 is the region where the electrode 136 constituting the electrochemical sensor for electrochemical measurement is arranged, and is formed in a groove shape having a planar shape in which the electrode 136 can be arranged. In the illustrated example, the electrode 136 is shown as being formed as a single chip, but it goes without saying that this corresponds to the three-electrode method described above.

[0037] The inflow path 133 allows the test fluid received at the inlet 131 to flow into the electrode area 132, and is formed in a groove shape that constitutes a flow path connecting the inlet 131 and the electrode area 132. In other words, the inflow path 133 is designed to allow the test fluid received at the inlet 131 to flow not only into the inflow path 113 and each test area 112a in the colorimetric inspection unit 110, but also into the electrode area 132 in the electrochemical measurement unit 130.

[0038] The ventilation passage 134 functions as an escape vent for air when the test fluid flows into the electrode region 132. The ventilation passage 134 is not limited to the configuration shown in the illustration, and may be configured in other ways as long as it functions as an air escape vent.

[0039] The connection terminal 135 is located on one end edge of the electrochemical measurement unit 130 (specifically, the end edge away from the inlet 131) and is electrically connected to the electrode 136 in the electrode region 132 via metal wiring (not shown). The end edge of the electrochemical measurement unit 130 on the side where the connection terminal 135 is located is configured to be insertable into and removeable from an insertion slot of an external measuring instrument unit (not shown), and insertion into this slot electrically connects the connection terminal 135 to the measuring instrument unit.

[0040] The electrochemical measurement unit 130 with this configuration can be attached to the colorimetric inspection unit 110, for example, using adhesive tape. However, it is not necessarily limited to this, and other configurations are also acceptable, such as using fasteners like clips or screws.

[0041] (2) Example of the composition of colorimetric test paper Next, an example of the configuration of the colorimetric test paper according to this embodiment will be described. The colorimetric test paper described in this embodiment is used by being placed in the test paper placement area 112 of the sensor unit 100 having the configuration described above.

[0042] Figure 3 is a perspective view showing an example of the configuration of the colorimetric test paper according to this embodiment.

[0043] As shown in Figure 3, the colorimetric test paper 200 according to this embodiment is composed of a base material 201 and a plurality of colorimetric reagent pieces 202 arranged on the base material 201.

[0044] The base material 201 is for supporting multiple types of colorimetric reagent pieces 202 and is formed, for example, from a paper material having a long, flat shape.

[0045] The multiple types of colorimetric reagent pieces 202 are configured to exhibit a color reaction to different components in the test solution. In other words, each colorimetric reagent piece 202 functions as a color chip for performing colorimetric testing on different components. By providing such multiple types of colorimetric reagent pieces 202, the colorimetric test paper 200 enables the simultaneous detection of multiple types of components during colorimetric testing, thereby making component detection simple and rapid. Examples of components that each colorimetric reagent piece 202 reacts to include urinary glucose, albumin, protein, creatinine, ketone bodies, glucose, specific gravity, occult blood, hydrogen ion concentration (pH), nitrite, and leukocytes contained in urine. However, each colorimetric reagent piece 202 placed on the base material 201 is not necessarily limited to those corresponding to a specific type of component; it may be composed of a combination of appropriately selected pieces from multiple types as needed.

[0046] These multiple types of colorimetric reagent pieces 202 are arranged in a line on the substrate 201 with spaces between them. As a result, when the colorimetric test paper 200 is placed in the test paper placement area 112 of the sensor unit 100, each colorimetric reagent piece 202 is located in one of the multiple test areas 112a of the test paper placement area 112. In other words, each is configured so that multiple types of colorimetric reagent pieces 202 are located in multiple test areas 112a.

[0047] Furthermore, multiple types of colorimetric reagent pieces 202 are arranged on the substrate 201 such that their respective surfaces lie on the same plane. The surface of the colorimetric reagent piece 202 referred to here is the main surface of the colorimetric reagent piece 202 that is exposed when mounted on the substrate 201 (i.e., the side opposite to the surface in contact with the substrate 201). If the surfaces of each colorimetric reagent piece 202 are located at the same height from the substrate 201, then their respective surfaces will lie on the same plane. If the surfaces of each colorimetric reagent piece 202 lie on the same plane, then when a colorimetric test paper 200 is placed in the test paper placement area 112 of the colorimetric inspection unit 110 and the test paper placement area 112 is covered with the cover member 120, the distance between the surface of each colorimetric reagent piece 202 on the colorimetric test paper 200 and the cover member 120 will be uniform (i.e., even). Furthermore, each colorimetric reagent piece 202 does not necessarily need to have its surface on the same plane; for example, it can be used for colorimetric testing even if its surfaces are located on different planes.

[0048] Between these multiple types of colorimetric reagent pieces 202, rib portions that function as partitions to suppress the movement of the test solution between them by isolating each colorimetric reagent piece 202, or water-repellent regions (not shown) that achieve a similar function may be formed. Furthermore, these multiple types of colorimetric reagent pieces 202 may be configured such that, for example, their surfaces are covered with a transparent film, and so that they exhibit a color reaction in response to immersion in liquid on the side end faces rather than the surface.

[0049] As described above, the colorimetric test paper 200 according to this embodiment is constructed by arranging a plurality of colorimetric reagent pieces 202 on a substrate 201, and is used by placing it in the test paper placement area 112 of the sensor unit 100. When performing a colorimetric inspection using the sensor unit 100, in addition to placing the colorimetric test paper 200 in the test paper placement area 112, a reference color sample corresponding to the colorimetric test paper 200 is placed in the color sample placement area 115 which is arranged side by side in the test paper placement area 112.

[0050] Here, we will briefly explain the reference color sample corresponding to the colorimetric test paper 200. The reference color sample is intended to provide a reference color sample when measuring the degree of discoloration of the colorimetric reagent piece 202 that has shown a color reaction in a colorimetric test using the colorimetric test paper 200. Specifically, for example, it is configured to be able to present the same color as the colorimetric reagent piece 202 before discoloration as the reference color of the colorimetric reagent piece 202. Therefore, if the colorimetric test paper 200 is equipped with multiple types of colorimetric reagent pieces 202, the reference color sample corresponding to the colorimetric test paper 200 will be equipped with multiple color sample pieces that present the reference color of each colorimetric reagent piece 202. In addition, for example, when optically measuring the color of the colorimetric reagent piece 202 by color detection, it may also be configured to allow calibration of the measurement environment and optical system. In either case, the reference color sample will serve as a reference point when performing colorimetric testing using colorimetric test paper 200.

[0051] Furthermore, the reference color sample is not limited to a specific configuration, and any sample configured as appropriate can be used, as long as it corresponds to the colorimetric test paper 200 (i.e., it is capable of displaying the reference color of the colorimetric reagent piece 202, or it is capable of calibrating the measurement conditions of the colorimetric reagent piece 202, etc.), and can be placed in the color sample placement area 115 of the sensor unit 100.

[0052] (3) Example of processing operation in the sensor unit Next, an example of the processing operation in the sensor unit 100 when performing colorimetric inspection using the sensor unit 100 with the configuration described above will be explained.

[0053] To use the sensor unit 100, first, the colorimetric test paper 200 to be used for colorimetric testing is placed in the test paper placement area 112 of the colorimetric inspection section 110 that constitutes the sensor unit 100. As a result, each colorimetric reagent piece 202 on the colorimetric test paper 200 is located in each of the multiple inspection areas 112a in the test paper placement area 112. Furthermore, a reference color sample corresponding to the colorimetric test paper 200 in the test paper placement area 112 is placed in the color sample placement area 115 of the colorimetric inspection section 110. After the colorimetric test paper 200 and the reference color sample are placed, a cover member 120 is attached to one main surface of the colorimetric inspection section 110, thereby sealing the test paper placement area 112, the inflow path 113, the color sample placement area 115, etc. in the colorimetric inspection section 110.

[0054] If the system also supports electrochemical measurement in addition to colorimetric testing using colorimetric test paper 200, the electrochemical measurement unit 130 is mounted on the main surface of the colorimetric testing unit 110, on the side opposite to the mounting surface of the cover member 120.

[0055] This completes the assembly of the sensor unit 100, making it possible to begin using the sensor unit 100. At this time, if a hygroscopic member is placed at the corresponding location in the inspection area 112a where each colorimetric reagent piece 202 of the colorimetric test paper 200 is located, and the test paper placement area 112 on which the colorimetric test paper 200 is placed is covered by the cover member 120, then even if there is a time elapsed until use begins (for example, a waiting period or storage period from assembly to use), deterioration of the colorimetric reagent pieces 202 due to humidity can be suppressed. This is very effective due to the combined action of both the hygroscopic member and the cover member 120, but it is not necessarily required that both be working together. For example, if at least one of these is working, it will have a greater effect in suppressing deterioration of the colorimetric reagent pieces 202 due to humidity compared to when neither is working.

[0056] The use of the sensor unit 100 is performed, for example, by maintaining the orientation of the sensor unit 100 so that its inlets 111 and 131 are open toward the upward direction in the direction of gravity. Then, in that state, the use of the sensor unit 100 is started by injecting the fluid to be subjected to colorimetric testing (e.g., urine) into the inlets 111 and 131 of the sensor unit 100.

[0057] When the test fluid is injected into the inlets 111 and 131, the test fluid received by inlet 111 flows into the inflow path 113 in the colorimetric inspection unit 110. Furthermore, if the electrochemical measurement unit 130 is installed, the test fluid received by inlet 131 also flows into the inflow path 133 in the electrochemical measurement unit 130. In other words, since the test fluid branches from inlets 111 and 131 into inflow paths 113 and 133, it flows into each of these paths.

[0058] The test liquid that flows into the inflow path 113 of the colorimetric inspection unit 110 first flows into the common flow path 113a that constitutes the inflow path 113 and is stored in the common flow path 113a. Storage in the common flow path 113a continues until it is full. After the common flow path 113a is full, as the liquid level of the test liquid rises, the test liquid flows into each of the multiple connecting passages 113b, and further the test liquid reaches each inspection area 112a of the test paper placement area 112.

[0059] In this configuration, each connecting passage 113b is formed to be of equal length. Furthermore, a ventilation region 114 is formed on the side opposite each connecting passage 113b to each inspection area 112a. This ventilation region 114 communicates with the ventilation holes 121 of the cover member 120, functioning as an air vent, and thus the rise in the liquid level of the test fluid is not hindered. Consequently, the inflow of the test fluid into each inspection area 112a due to the rise in liquid level occurs at the same time for each area. In other words, the timing of the inflow of the test fluid into each inspection area 112a is synchronized. Note that while the ventilation region 114 and ventilation holes 121 function as air vents, the inlets 111 and 131 are located at heights corresponding to the formation of these air vents. Therefore, the rise in liquid level is stopped at a certain height by liquid overflow on the side of the inlets 111 and 131, and does not exceed the formation of the air vents (i.e., liquid overflow on the side of the air vents).

[0060] In this example, the inspection areas 112a are arranged side by side on the upper side of the common flow path 113a in the direction of gravity, and the test fluid flows into each inspection area 112a as the liquid level rises. However, the method is not necessarily limited to this, and for example, the test fluid may flow into each inspection area 112a by capillary action using the ventilation area 114 and ventilation holes 121. In that case, the orientation of the sensor unit 100 can be used regardless of whether it is up or down in the direction of gravity. Moreover, even in that case, it is possible to synchronize the timing of the flow of the test fluid into each inspection area 112a by adjusting the inflow resistance of each connecting passage 113b, for example.

[0061] When the test solution flows into each test area 112a, each colorimetric reagent piece 202 located in each test area 112a becomes immersed in the test solution. Each colorimetric reagent piece 202 then exhibits a color reaction to different components in the test solution.

[0062] In this process, by ensuring that there is no time difference in the timing of supplying the test solution to each colorimetric reagent piece 202, the immersion time for each colorimetric reagent piece 202 does not vary, and therefore, the color reaction of each colorimetric reagent piece 202 is not adversely affected by variations in immersion time.

[0063] Furthermore, if ribs or water-repellent regions are formed between each test area 112a, the movement of the test solution between them can be suppressed by isolating each test area 112a. By suppressing such movement of the test solution, adverse effects on the color reaction of each colorimetric reagent piece 202 (for example, variations in immersion time in each colorimetric reagent piece 202 due to the movement of the test solution, and contamination of the reaction reagent) can be avoided. This is exactly the same when ribs or water-repellent regions are formed between each colorimetric reagent piece 202 in the colorimetric test paper 200.

[0064] Subsequently, for example, after a predetermined time has elapsed, the color of each colorimetric reagent piece 202 that has shown a color reaction is measured.

[0065] The color of the colorimetric reagent piece 202 can be measured, for example, by a detection element unit (not shown) that detects the color of the colorimetric reagent piece 202. As the detection element unit, a solid-state image sensor such as a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor may be used. Alternatively, a color sensor that distinguishes color differences based on the ratio of light received by each RGB color may be used as the detection element unit. By performing color detection using such a detection element unit, it becomes possible to quantitatively measure the color of each colorimetric reagent piece 202 after the color reaction using an electrical signal. This means that, through color detection of the colorimetric reagent piece 202, the degree of discoloration of the colorimetric reagent piece 202 before and after the color reaction can be quantitatively determined. Regarding specific methods for color detection and determination of the degree of discoloration, publicly known techniques may be used, and a detailed explanation is omitted here.

[0066] When measuring the color of each colorimetric reagent piece 202, if the surfaces of each colorimetric reagent piece 202 are on the same plane, the distance between each surface and the cover member 120 will be uniform (i.e., even), so that variations in this distance will not adversely affect the color measurement results, and even if color correction is required for the detection results, it will be easy to do so.

[0067] Furthermore, when measuring the color of the colorimetric reagent piece 202, it is preferable to perform color detection against a reference color sample at the same time. By performing color detection against the reference color sample, it becomes possible to accurately measure the degree of discoloration of the colorimetric reagent piece 202 while eliminating the influence of environmental conditions and other factors in which the sensor unit 100 is used, by comparing the results of that color detection with the results of the color detection of the colorimetric reagent piece 202.

[0068] In this way, by measuring the color of each colorimetric reagent piece 202 and quantitatively determining the degree of discoloration of the colorimetric reagent piece 202 before and after the color reaction, it becomes possible to detect the concentration of the component that reacts with each colorimetric reagent piece 202 in the solution. In other words, the color detection of multiple types of colorimetric reagent pieces 202 can be performed simultaneously, thereby enabling the simple and rapid detection of multiple types of components in the test solution.

[0069] Furthermore, by performing colorimetric inspection using the sensor unit 100 according to this embodiment, even when simultaneously detecting the color of multiple types of colorimetric reagent pieces 202, the timing of supplying the test solution to each colorimetric reagent piece 202 can be synchronized, thereby avoiding adverse effects on the color reaction of each colorimetric reagent piece 202 due to variations in immersion time. As a result, accurate detection of components in the test solution can be achieved.

[0070] In other words, by performing a colorimetric inspection using the sensor unit 100 according to this embodiment, it is possible to easily and quickly detect multiple types of components in the test liquid, and even in that case, it is possible to detect the components with high accuracy.

[0071] On the other hand, when the electrochemical measurement unit 130 is installed, the test solution that flows into the inflow path 133 of the electrochemical measurement unit 130 flows through its inlet 131 into the electrode region 132 where the electrode 136 is located. As a result, the electrode 136 is immersed in the test solution that has flowed into the electrode region 132.

[0072] At this time, if the edge of the electrochemical measurement unit 130 on the side where the connection terminal 135 is located is inserted into, for example, the insertion slot of the measuring instrument unit called a potentiostat, it becomes possible to perform a predetermined voltage sweep operation on the electrode 136, which is immersed in the test solution, by utilizing the electrical connection between the connection terminal 135 and the electrode 136. Performing the predetermined voltage sweep operation will thereby perform an electrochemical measurement of the test solution using the electrode 136. In other words, the concentration of a specific component in the test solution can be measured by this electrochemical measurement. Note that the measurement of the concentration of a specific component by electrochemical measurement can be performed using publicly known techniques, so a detailed explanation is omitted here. Furthermore, when performing an electrochemical measurement using the electrode 136, in addition to measuring the concentration of a specific component in the test solution, for example, a predetermined voltage may be applied and the change in current when the test solution comes into contact with the electrode 136 may be measured to detect the timing of the start of contact between the test solution and the electrode 136.

[0073] Thus, by performing electrochemical measurements using the electrode 136 in addition to colorimetric testing with the colorimetric test paper 200, it becomes possible to detect components in the test solution from a more multifaceted perspective, and as a result, the accuracy of component detection in the test solution can be further improved.

[0074] (4) Effects of the sensor unit The sensor unit 100 and the colorimetric test paper 200 used in the sensor unit 100 described above provide one or more of the following effects.

[0075] (a) According to the sensor unit 100 and the colorimetric test paper 200 used in the sensor unit 100, by supplying the test solution to each of the multiple test areas 112a in the colorimetric inspection unit 110 and causing a color reaction in the colorimetric reagent pieces 202 placed in each test area 112a, it is possible to simultaneously detect the colors of multiple types of colorimetric reagent pieces 202, thereby enabling the detection of multiple types of components in the test solution in a simple and rapid manner. Furthermore, according to this embodiment, even when color detection of multiple types of colorimetric reagent pieces 202 is performed simultaneously, by aligning the timing of supplying the test solution to each colorimetric reagent piece 202, it is possible to avoid adverse effects on the color reaction of each colorimetric reagent piece 202 due to variations in immersion time. As a result, component detection in the test solution can be performed with high accuracy. In other words, by performing a colorimetric test using the sensor unit 100 and colorimetric test paper 200 according to this embodiment, it is possible to easily and quickly detect multiple types of components in the test liquid, and even in that case, it is possible to detect the components with high accuracy.

[0076] (b) In this embodiment, the inflow path 113 of the colorimetric inspection unit 110 has a common flow path 113a which is a storage area and a plurality of connecting passages 113b. The liquid to be tested that fills the common flow path 113a which is the storage area flows into each of the plurality of inspection areas 112a via each of the connecting passages 113b in a timely manner. Therefore, according to this embodiment, the timing of supplying the test solution to each colorimetric reagent piece 202 can be reliably synchronized, which is useful for accurately detecting multiple types of components in the test solution.

[0077] (c) In this embodiment, since multiple inspection areas 112a are arranged side by side on the side of the common flow path 113a, which is the storage area, in the direction of gravity, the liquid to be tested will flow into each inspection area 112a as the liquid level rises. Therefore, according to this embodiment, the timing of inflow into each inspection area 112a can be easily and reliably synchronized, and high-precision detection of multiple types of components in the test solution can be achieved with a very simple configuration.

[0078] (d) As described in this embodiment, if rib portions or water-repellent regions are formed between each inspection region 112a, the movement of the test solution between them can be suppressed by isolating each inspection region 112a. By suppressing such movement of the test solution, it is possible to prevent adverse effects on the color reaction of each colorimetric reagent piece 202 (for example, variations in immersion time in each colorimetric reagent piece 202 due to the movement of the test solution). Therefore, this is useful for accurately detecting multiple types of components in the test solution. This is also true when ribs or water-repellent regions are formed between each colorimetric reagent piece 202 in the colorimetric test paper 200.

[0079] (e) As described in this embodiment, if a hygroscopic member is placed at the corresponding location in the inspection area 112a where each colorimetric reagent piece 202 of the colorimetric test paper 200 is located, and the test paper placement area 112 on which the colorimetric test paper 200 is placed is covered by the cover member 120, then even if there is a time elapsed until use (for example, a waiting period or storage period from assembly to use), deterioration of the colorimetric reagent piece 202 due to humidity can be suppressed. Therefore, this also makes it useful for accurately detecting multiple types of components in the test solution.

[0080] (f) In this embodiment, the colorimetric inspection unit 110 includes a test paper placement area 112 on which the colorimetric test paper 200 is placed. By placing the colorimetric test paper 200 in the test paper placement area 112, each colorimetric reagent piece 202 of the colorimetric test paper 200 is positioned in each inspection area 112a within the test paper placement area 112. In other words, by placing the test paper in the test paper placement area 112, the colorimetric test paper 200 is attached to the sensor unit 100 and the colorimetric reagent pieces 202 on the colorimetric test paper 200 are positioned in the inspection area 112a. Therefore, according to this embodiment, the mounting and positioning of the colorimetric test paper 200 can be easily performed, resulting in greater convenience for users of the sensor unit 100 and the colorimetric test paper 200.

[0081] (g) In this embodiment, the colorimetric inspection unit 110 includes a color sample placement area 115 on which a reference color sample is placed. Therefore, it is possible to compare the color detection results for the colorimetric reagent piece 202 with the color detection results for the reference color sample. Therefore, according to this embodiment, when measuring the color of the colorimetric reagent piece 202, it is possible to accurately measure the degree of discoloration of the colorimetric reagent piece 202 by comparing it with a reference color sample, while eliminating the influence of environmental conditions and other factors on the use of the sensor unit 100.

[0082] (h) As described in this embodiment, if the sensor unit 100 is equipped with an electrochemical measurement unit 130, the test liquid will also flow into the electrode region 132 of the electrochemical measurement unit 130, so in addition to the colorimetric inspection using the colorimetric test paper 200, it is possible to perform electrochemical measurement using the electrode 136 in the electrode region 132. In other words, according to this embodiment, by also performing electrochemical measurements, it becomes possible to perform a more multifaceted detection of components in the test solution, and as a result, the accuracy of component detection in the test solution can be further improved.

[0083] (i) When performing electrochemical measurements using the electrode 136, an electrical connection is required between the electrode 136 and an external measuring instrument unit (not shown). However, as described in this embodiment, if the location of the connection terminal 135 in the electrochemical measuring unit 130 is configured to allow insertion and removal from the socket of the external measuring instrument unit, then this electrical connection can be achieved very easily. In other words, according to this embodiment, even when electrochemical measurements are performed in addition to colorimetric inspection, the sensor unit 100 is highly convenient for the user.

[0084] (j) In this embodiment, each colorimetric reagent piece 202 in the colorimetric test paper 200 used for colorimetric testing has a surface on the same plane. Therefore, when the cover member 120 is attached, the distance between the surface of each colorimetric reagent piece 202 and the cover member 120 becomes uniform (i.e., even), so that variations in this distance do not negatively affect the color measurement results, and it becomes easy to respond even if color correction to the detection result is necessary. In other words, this also makes it useful for accurately detecting multiple types of components in the test solution.

[0085] (5) Modified example of a sensor unit Although the sensor unit 100 and colorimetric test paper 200 according to this embodiment have been described in detail above, this disclosure is not limited to the embodiments described above, and various modifications are possible without departing from the spirit thereof.

[0086] For example, in the embodiments described above, the case in which the sensor unit 100 can handle electrochemical measurements in addition to colorimetric inspection was mainly given as an example, but it is not necessarily limited to this, and it is sufficient if it can at least handle colorimetric inspection.

[0087] Furthermore, in the above-described embodiment, an example was given in which the inflow path 113 of the colorimetric inspection unit 110 is configured to have a common flow path 113a which is a storage area and a plurality of connecting passages 113b, but it is not necessarily limited to this. For example, the inflow path 113 may be configured such that the inflow resistance of the test liquid to each of the multiple inspection areas 112a differs in accordance with the difference in flow path length to each of the multiple inspection areas 112a. Even in that case, it is possible to synchronize the inflow timing of the test liquid to each inspection area 112a by adjusting the conductance using the difference in inflow resistance, so that the same effects as in the above-described embodiment can be obtained.

[0088] Furthermore, in the above-described embodiment, an example was given in which a ventilation hole 121 communicating with the ventilation region 114 is provided in the cover member 120, thereby securing an air vent for when the test liquid flows into the inspection region 112a. However, the invention is not necessarily limited to this. For example, instead of the cover member 120, an air vent may be provided on the side of the colorimetric inspection section 110, communicating with the ventilation region 114. In either configuration, by aligning the opening positions of the inlets 111 and 131 into which the test liquid flows with the locations where the air vents are formed, it is possible to prevent the test liquid from flowing out from the side of the air vents even when inflow pressure is applied to the inlets 111 and 131.

[0089] Furthermore, in the above-described embodiment, an example was given in which color detection by the detection element unit is performed from the side of the colorimetric reagent pieces 202 on a base material 201 for a colorimetric test paper 200 in which colorimetric reagent pieces 202 are arranged. However, the invention is not necessarily limited to this. For example, if the base material 201 is made of a transparent material, or if the base material 201 has partial openings corresponding to the placement locations of the colorimetric reagent pieces 202, then it is possible to perform color detection of the colorimetric reagent pieces 202 from the side of the base material 201 through the transparent material constituting the base material 201 or the openings provided in the base material 201. If color detection is performed in this manner, even if the surface of multiple types of colorimetric reagent pieces 202 is not on the same plane, but rather each surface is located on a different plane, the influence of the different surfaces on the color detection can be eliminated by performing color detection from the side of the base material 201.

[0090] (6) Example of an animal toilet unit configuration Next, we will describe a specific example of an application using the sensor unit 100 and colorimetric test paper 200 described above. Here, we will give an example of a case in which the sensor unit 100 is installed in an animal toilet unit.

[0091] An animal toilet unit is used as a toilet by animals such as cats and dogs kept as pets, and is specifically used for the excretion of urine. While cats and dogs are typical examples of animals that use animal toilet units, they are not necessarily limited to any particular type of animal.

[0092] For pet animals, urine tests are useful for understanding their health status. However, it is not practical to expect these animals to voluntarily undergo urine tests.

[0093] Therefore, in the embodiment described below, the sensor unit 100 described above is installed in an animal toilet unit used by animals for urinating. This makes it possible to perform urine testing on the urine excreted in the animal toilet unit without imposing an excessive burden on the animal or its owner.

[0094] Figure 4 is a schematic side cross-sectional view showing an example of the general configuration of the animal toilet unit according to this embodiment. Figures 5 to 8 are schematic explanatory diagrams showing an example of the main components of the animal toilet unit shown in Figure 4.

[0095] (Overall structure) As shown in Figure 4, the animal toilet unit 1 according to this embodiment is broadly composed of a housing section 10, a urine tray section 20, and a pull-out tray section 30.

[0096] (Housing section) The housing portion 10 is formed in the shape of a bottomed, open-topped container that can be placed on the floor. The open-topped portion of the housing portion 10 may be covered by a cover member 11 having an opening at one end.

[0097] A urination tray section 20 is located in the lidless portion of the housing section 10. Below the urination tray section 20, a pull-out tray section 30 is installed inside the container of the housing section 10 so as to be removable from the housing section 10 (see arrow A in Figure 4).

[0098] An inclined ramp 12 for guiding the animal from the floor to the urination tray 20 may be attached to one end of the housing portion 10 (or the side with the opening of the cover member 11, if one is present).

[0099] (Urination tray area) The urination tray section 20 is formed in the shape of a tray that is attached to the lidless portion of the housing section 10, and functions as a place for animals to excrete urine. In other words, the urination tray section 20 functions as the "urination section" in this disclosure.

[0100] The urination tray section 20 is provided with a mesh section 21 at the bottom of the tray, which is made of a mesh plate having multiple through holes or through slits. When an animal urinates above the urination tray section 20, the excreted urine is configured to fall through the through holes or through slits in the mesh section 21 toward the drawer tray section 30 located below the urination tray section 20.

[0101] The urination tray section 20 may also contain a granular material for excretion, such as cat litter (not shown).

[0102] (Drawer tray section) The pull-out tray section 30 is formed in the shape of a tray and is located below the urination tray section 20, and is configured to be pullable out from the housing section 10.

[0103] When the pull-out tray section 30 is installed inside the housing section 10 and not pulled out from it, it is located below the urination tray section 20. Therefore, when installed inside the housing section 10, the pull-out tray section 30 can be considered part of the housing section 10. In this state, when an animal excretes urine in the urination tray section 20, the urine falls from the urination tray section 20 through the mesh section 21. The pull-out tray section 30, located below the urination tray section 20, then receives the urine falling from the urination tray section 20.

[0104] To this end, the pull-out tray section 30 is configured to include a suction member 31, a sensor module 32, and a guide channel section 33, as shown in Figure 5.

[0105] (Adsorption material) The adsorption member 31 has at least one of hygroscopic or water-absorbing properties and is used by being placed on the bottom surface of the drawer tray 30. The adsorption member 31 may be in the form of a sheet or granules, as long as it has hygroscopic or water-absorbing properties. Furthermore, the adsorption member 31 may have other properties besides hygroscopic or water-absorbing properties (e.g., deodorizing properties, fragrance properties, etc.). By providing such an adsorption member 31, a portion of the urine falling from the urination tray 20 (specifically, urine overflowing from the sensor module 32) will be absorbed by the adsorption member 31 within the drawer tray 30. It is preferable that the adsorption member 31 be configured as a disposable item that can be replaced as needed or at regular intervals for hygiene and infection prevention purposes.

[0106] (sensor module) The sensor module 32 is for receiving urine falling from the urination tray 20 and performing a urine test on that urine. To this end, the sensor module 32 comprises a sensor unit 100, a detection unit 32a, and a measuring instrument unit 32b, and is configured so that these can be handled as a single module.

[0107] The sensor unit 100 has the configuration described above and is positioned inside the urination tray section 20 with at least the colorimetric test paper 200 attached to the test paper placement area 112. Furthermore, the sensor unit 100 is positioned inside the urination tray section 20 with the inlets 111 and 131 facing upward in the direction of gravity (i.e., towards the urination tray section 20), and with the colorimetric test paper 200 in the test paper placement area 112 and the reference color sample in the color sample placement area 115 facing the detection unit 32a.

[0108] The detection unit 32a is for performing color detection on a colorimetric test paper 200 (including a reference color sample if one is mounted in the color sample placement area 115) attached to the sensor unit 100. To this end, the detection unit 32a is configured to include a detection element section 32c, which is composed of a solid-state image sensor or color sensor having a color detection function, and an illumination section 32d, such as an LED (light-emitting diode) light, which illuminates the object to be detected by the detection element section 32c. The detection unit 32a is connected to the measuring instrument section 32b via a support section 32e that supports the detection unit 32a.

[0109] The measuring instrument unit 32b is for performing information processing necessary for various detection processes using the sensor unit 100 and the detection unit 32a. Information processing performed by the measuring instrument unit 32b includes, for example, giving drive instructions to the detection element unit 32c or the illumination unit 32d of the detection unit 32a, and processing the electrical signal resulting from the detection by the detection element unit 32c. Other information processing includes, for example, causing the electrochemical measurement unit 130 of the sensor unit 100 to perform a predetermined voltage sweep operation, i.e., realizing its function as a potentiostat. Further information processing includes, for example, transmitting various information obtained by the measuring instrument unit 32b (such as detection result information from the detection element unit 32c) to an external terminal device (not shown). In this case, the measuring instrument unit 32b functions as a "communication control unit" that transmits information acquired within the animal toilet unit 1 to the external terminal device. The specific functional configuration of the measuring instrument unit 32b for performing this information processing can be realized using publicly known technology, so a detailed explanation is omitted here.

[0110] As shown in Figure 6, the measuring instrument section 32b is provided with an insertion slot 32f into which the connection terminal 135 of the electrochemical measurement section 130 of the sensor unit 100 is inserted. By inserting the connection terminal 135 into the insertion slot 32f (see arrow B in the figure), the measuring instrument section 32b is electrically connected to the electrode 136 of the electrochemical measurement section 130, making it possible to perform a predetermined voltage sweep operation using the electrode 136. It is preferable that a support member 32g is provided near the insertion slot 32f to support the sensor unit 100 in order to prevent it from falling out when inserted.

[0111] In this embodiment, as shown in Figures 5 and 6, the sensor unit 100, detection unit 32a, and measuring instrument unit 32b are integrated by inserting the connection terminal 135 into the insertion port 32f, making them treatable as a single module. However, the integration of the sensor unit 100, detection unit 32a, and measuring instrument unit 32b is not necessarily limited to using the insertion port 32f or the connection terminal 135. For example, if the sensor unit 100 does not have an electrochemical measuring unit 130, the integration may be achieved using other known fasteners or mounting devices.

[0112] The sensor module 32 configured in this way is attached to the drawer tray section 30 using the side wall portion of the drawer tray section 30 or an opening formed in the side wall portion. When the sensor module 32 is attached to the drawer tray section 30, the sensor unit 100 is positioned inside the urination tray section 20 with its inlets 111 and 131 facing upward in the direction of gravity. The detection unit 32a is then positioned opposite the sensor unit 100.

[0113] (Guidance channel section) As shown in Figure 4, the guide channel section 33 is positioned between the urination tray section 20 and the sensor module 32, and its purpose is to receive the urine excreted in the urination tray section 20 and guide it to the inlets 111 and 131 of the sensor unit 100 of the sensor module 32.

[0114] To this end, the guide channel section 33 has an opening 33a located above the inlets 111 and 131 in the direction of gravity, and an inclined sheet section 33b formed by an inclined surface connected to the opening 33a. The guide channel section 33 is positioned above the sensor unit 100 and below the urination tray section 20, and is configured to guide urine received from the urination tray section 20 by the inclined sheet section 33b to the opening 33a using the inclination of the inclined sheet section 33b, and from the opening 33a to the inlets 111 and 131 of the sensor unit 100 (see arrow C in Figure 4). Note that the opening 33a may be cylindrical rather than just a through hole. In that case, the guide channel section 33 will be formed in a funnel shape.

[0115] The guide channel section 33 is detachably supported on the drawer tray section 30, for example, so as to cover the tray opening (i.e., the lidless portion) of the drawer tray section 30. In this case, as shown in Figure 5, if the guide channel section 33 is configured to be positioned relative to the drawer tray section 30 using, for example, a protruding pin formed on the drawer tray section 30, then the opening 33a of the guide channel section 33 can be reliably and easily positioned on the side above the inlets 111 and 131 of the sensor unit 100 in the direction of gravity.

[0116] However, the guide channel section 33 does not necessarily need to be supported by the pull-out tray section 30, as long as it is positioned between the urination tray section 20 and the sensor module 32. As shown in Figure 7, it may be configured to be attached to the side of the urination tray section 20. Attachment to the urination tray section 20 can be done, for example, by supporting the vicinity of the outer edge of the guide channel section 33 with a frame-shaped frame 33c, and then attaching the frame 33c to the urination tray section 20. In this case as well, the guide channel section 33 should be detachable from the urination tray section 20 and the frame 33c.

[0117] In either configuration, the guide channel section 33 is detachable from the urination tray section 20 or the pull-out tray section 30. In other words, the guide channel section 33 is configured to be detachable from the housing section 10 to which the urination tray section 20 and the pull-out tray section 30 are mounted. Being detachable allows it to function as a disposable item that can be replaced as needed or at regular intervals. This allows the guide channel section 33 to be removed after use and replaced with a new, unused one, which is preferable from a hygiene and infection prevention standpoint.

[0118] The detachable guide channel section 33 is preferably made of a water-resistant and flexible material. Water resistance prevents urine from seeping in, ensuring that urine from the urination tray section 20 is reliably guided to the inlets 111 and 131 of the sensor unit 100. Flexibility improves ease of attachment and detachment, and helps prevent damage during such work. For example, the guide channel section 33 can be constructed using nonwoven fabric, cloth, paper, or any other material. However, the guide channel section 33 is not necessarily limited to these materials and may be constructed using other materials.

[0119] Furthermore, regardless of the material used to form it, it is preferable that the guide channel section 33 is shaped to guide the urine received from the urine tray section 20 to the inlets 111 and 131 of the sensor unit 100 (i.e., the inclined sheet section 33b is inclined toward the lowest opening 33a). If it is shaped in this way, simply installing the guide channel section 33 between the urine tray section 20 and the sensor module 32 will ensure that the urine from the urine tray section 20 is reliably guided to the inlets 111 and 131 of the sensor unit 100.

[0120] However, if the guide channel section 33 is made of a flexible material, the molded shape may not necessarily be maintained even after installation due to the influence of external forces applied, for example, during attachment and detachment. Considering this, it is preferable that the guide channel section 33 be fitted with a shape correction member. The shape correction member corrects the shape of the guide channel section 33 to a shape that guides the urine received from the urination tray section 20 to the inlets 111 and 131 of the sensor unit 100.

[0121] Specifically, as an example of a shape-correcting member, for instance, a framework member (not shown) made of paper material of a thickness that can ensure a certain degree of mechanical strength may be attached to the back side of the guide channel section 33 (i.e., the side opposite to the surface that comes into contact with urine) of the guide channel section 33, which is made of nonwoven fabric, thereby enabling the molded shape of the guide channel section 33 to be maintained by the framework member.

[0122] Furthermore, other examples of shape-correcting members include those shown in Figure 8. Specifically, as shown in Figure 8(a), consider a case where the material forming the guide channel section 33 is, for example, a rectangular piece of paper, with an opening 33a in the approximate center and positioning openings near each of the four corners. In this case, by folding the material forming the guide channel section 33 diagonally, the guide channel section 33 can be made into a funnel shape that slopes toward the opening 33a, thereby ensuring that urine from the urination tray section 20 is reliably guided to the inlets 111 and 131 of the sensor unit 100. However, depending on the material strength, it may not always be possible to maintain the funnel-shaped form. Therefore, as shown in Figures 8(b) and (c), a spherical member 33d with a certain amount of weight can be placed on the surface of the guide channel section 33 (i.e., the surface in contact with urine) as a shape-correcting member, and the shape of the guide channel section 33 can be maintained by utilizing the effect of the spherical member 33d trying to move to the lowest position. Furthermore, the spherical member 33d is not limited to a specific material, as long as it has sufficient weight to correct the shape of the guide channel 33.

[0123] Furthermore, regardless of whether or not a shape-correcting member is attached, it is preferable that a hydrophobic region (not shown) is partially arranged on the surface of the guide channel 33. In that case, the surface of the guide channel 33 will have both a hydrophobic region and a hydrophilic region other than the hydrophobic region. Here, a hydrophobic region is a region that has low affinity for liquids such as urine and repels the liquid, making it easier for the liquid to flow. A hydrophilic region is a region that has high affinity for liquids such as urine and makes it more difficult for the liquid to flow compared to the hydrophobic region. The arrangement of the hydrophobic region can be achieved, for example, by performing a surface treatment such as a hydrophobic coating. If the hydrophobic region is partially arranged, urine can be guided on the surface of the guide channel 33 by the portion where the hydrophobic region is formed. Therefore, depending on the arrangement of the water-repellent areas on the surface of the guide channel section 33, it is possible to efficiently guide even a small amount of urine received from the urination tray section 20 to the inlets 111 and 131 of the sensor unit 100.

[0124] Furthermore, in the guide channel section 33, a filter section (not shown) for removing foreign matter contained in urine may be attached to the location where the opening 33a is formed. The filter section is not limited to a specific configuration as long as it is capable of removing foreign matter from urine. Therefore, the filter section may not be attached to the opening 33a in the guide channel section 33, but for example, it may be provided on the side of the inlet 111, 131 of the sensor unit 100. Also, the filter section may be provided on both the side of the guide channel section 33 and the side of the sensor unit 100.

[0125] (Other configurations) The animal toilet unit 1, comprising the housing 10, urination tray 20, and pull-out tray 30 described above, is used with the pull-out tray 30 housed within the housing 10 and the sensor module 32 positioned within the pull-out tray 30. In other words, the sensor unit 100 and detection unit 32a constituting the sensor module 32 are used in a state where they are positioned within the arrangement space formed within the housing 10.

[0126] When using the sensor unit 100 and the detection unit 32a, the detection element 32c of the detection unit 32a performs color detection on the colorimetric test paper 200 or the like attached to the sensor unit 100. In this case, in order to improve the accuracy of color detection by the detection element 32c, it is effective to suppress the influence of ambient light and the like on the detection element 32c.

[0127] For this reason, it is preferable that the space in which the sensor unit 100 and the detection unit 32a are arranged be constructed of light-shielding material. Specifically, the forming members of the housing portion 10, the urination tray portion 20, and the drawer tray portion 30, which constitute the said arrangement space, are each constructed of light-shielding material. The forming members of the guide channel portion 33 may also be included in the materials that constitute the said arrangement space. Note that the forming members are not limited to any particular material as long as they have light-shielding properties, and may be appropriately selected according to their respective functions, etc.

[0128] By configuring the arrangement space with such forming members, the detection element portion 32c of the detection unit 32a, which is arranged in that arrangement space, can perform color detection on the colorimetric test paper 200 attached to the sensor unit 100 without being affected by ambient light or the like.

[0129] (7) Example of a health support system configuration Next, the configuration of the health support system according to this embodiment will be described. The health support system is a system comprising the aforementioned animal toilet unit 1, and is intended to support the maintenance of the health of animals that use the animal toilet unit 1.

[0130] Figure 9 is a schematic diagram illustrating an example of the general configuration of the health support system according to this embodiment.

[0131] (Overall structure) As shown in the diagram, the health support system according to this embodiment is configured to include an external information terminal device (hereinafter sometimes simply referred to as "external terminal device" or "terminal device") 2 in addition to the animal toilet unit 1 described above.

[0132] (External information terminal device) The external information terminal device 2 is a terminal device capable of communicating with the measuring instrument section 32b of the sensor module 32, and is composed of a smartphone, tablet terminal, notebook computer, etc., that has computer functionality. In the example shown in Figure 9, the external information terminal device 2 is a smartphone used by the owner of an animal that uses the animal toilet unit 1. In other words, in this embodiment, the external information terminal device 2 is a portable terminal device used by the owner of an animal.

[0133] Communication between the external information terminal device 2 and the measuring instrument unit 32b can be wireless or wired, but wireless communication is preferred considering the flexibility of the installation of the sensor module 32.

[0134] The external information terminal device 2 has a predetermined application program installed to communicate with the measuring instrument unit 32b of the sensor module 32 and to process the information obtained through this communication. By executing this application program, the external information terminal device 2 performs testing on the urine excreted in the animal toilet unit 1 based on the measurement result information from the sensor module 32. The "testing on urine" referred to here mainly involves analytical processing of components contained in the urine (for example, testing the concentration of specific components), but may also include processing to determine the health status of animals using the animal toilet unit 1 (for example, determining whether they are healthy, require observation, require treatment, etc.).

[0135] In addition to displaying and outputting information regarding the processing results of urine tests on the external information terminal device 2 itself, the external information terminal device 2 may also output this information to other devices that are connected to the external information terminal device 2 via a network. Examples of other devices include a printer that performs print output and a computer system (host server or cloud server) at the animal hospital where the animal's attending veterinarian is located.

[0136] Furthermore, in addition to outputting information to other devices, the external information terminal device 2 may also receive information transmitted from other devices on the network and display that received information on the external information terminal device 2. Examples of other devices on the network include the computer equipment of the animal hospital mentioned above, and computer equipment (host servers or cloud servers) managed by various companies that collaborate with the animal hospital. Examples of information transmitted from other devices include information related to the diagnosis results at the animal hospital and product advertisements provided in accordance with those diagnosis results.

[0137] Regarding the external information terminal device 2, any specific configuration other than those described above may utilize publicly known technologies, and such explanations will be omitted here.

[0138] (8) Examples of processing operations in animal toilet units and health support systems Next, we will describe an example of processing operation in the animal toilet unit 1 with the above-described configuration and in the health support system including the animal toilet unit 1.

[0139] The animal toilet unit 1 according to this embodiment is used by pet animals as a place to excrete urine, and enables inspection processing of the excreted urine using a sensor module 32. Furthermore, the health support system according to this embodiment can assist in maintaining the health of animals using the animal toilet unit 1 by utilizing output information from an external information terminal device 2 (information regarding the results of the inspection processing in the animal toilet unit 1).

[0140] The following explains the series of processing steps involved, using specific examples.

[0141] When using the health support system according to this embodiment, the first step is to prepare the system for use. Specifically, the preparation involves, at a minimum, placing the drawer tray section 30, to which the sensor module 32 is mounted, into the housing section 10 of the animal toilet unit 1, powering on the sensor module 32, and arranging the guide channel section 33 within the housing section 10. This transitions the animal toilet unit 1 into an operational state, making the health support system ready for use.

[0142] The operating state of the animal toilet unit 1 refers to a state in which, after the above-described preparation for use, it is possible to guide the urine excreted in the urination tray section 20 to the inlets 111 and 131 of the sensor unit 100 of the sensor module 32, and it is possible to perform various measurements on that urine using the sensor module 32. Furthermore, in the operating state of the animal toilet unit 1, it is preferable that a particulate material such as cat litter is placed in the urination tray section 20, and an adsorption member 31 is placed in the pull-out tray section 30.

[0143] After the animal toilet unit 1 is activated, the pet animal uses the animal toilet unit 1 as a place to urinate. Specifically, the animal using the animal toilet unit 1 goes up to the urination tray section 20 and urinates there. At this time, if the animal toilet unit 1 is equipped with an inclined ramp 12, the animal urinating can use the inclined ramp 12 to move up to the urination tray section 20. Therefore, even if the animal urinating is unwell, for example, it can easily reach the urination tray section 20, which is the place to urinate, by using the inclined ramp 12. This also means that the presence of the inclined ramp 12 creates more space below the urination tray section 20. In other words, by securing space, it becomes possible to arrange the guide channel section 33 between the urination tray section 20 and the sensor module 32. This allows the excreted urine to be efficiently guided to the inlets 111 and 131 of the sensor unit 100 of the sensor module 32 without loss, and also ensures sufficient flexibility in the configuration and arrangement of the sensor module 32 and the guide channel section 33, thereby enabling cost reduction of the sensor module 32 and other components.

[0144] Furthermore, the animal toilet unit 1 may be configured to detect when an animal has urinated. This is because the detection of urination can be used as a trigger to start the measurement process using the sensor unit 100. If the sensor unit 100 has an electrochemical measurement unit 130, urination can be detected using the measurement results from the electrode 136 of the electrochemical measurement unit 130. In addition, it is conceivable to simulate detection by recognizing the load on the urination tray 20 or the weight change of the sensor unit 100 with a weight sensor, but other detection methods may also be used. However, the trigger to start the process does not necessarily have to be based on the detection of urination; for example, it may be triggered by a predetermined operation on the operation panel (not shown) of the animal toilet unit 1, or by a remote instruction from an external information terminal device 2.

[0145] When an animal urinates on the urination tray section 20, the excreted urine falls through the mesh section 21 of the urination tray section 20 to the side of the pull-out tray section 30. It then flows along the inclined sheet section 33b of the guide channel section 33 located below the urination tray section 20, and is guided from the opening 33a of the guide channel section 33 to the inlets 111 and 131 of the sensor unit 100.

[0146] In this case, since the guide channel section 33 is configured to be detachable from the housing section 10, a newly installed, unused one can be used. Therefore, it is preferable in terms of hygiene and infection prevention, and furthermore, adverse effects caused by impurities such as contamination can be easily eliminated, which is very useful in ensuring good measurement accuracy in the sensor unit 100. In that case, if the guide channel section 33 is made of a flexible material, the workability when installing the guide channel section 33 will be improved. Moreover, even if the guide channel section 33 is flexible, if a shape correction member is attached to the guide channel section 33, it will be easy to maintain the shape of the guide channel section 33. Furthermore, if the guide channel section 33 is made of a water-resistant material, it is possible to prevent urine from seeping into the guide channel section 33, thereby reliably guiding the urine received from the urine tray section 20 to the inlets 111 and 131 of the sensor unit 100. Moreover, if a water-repellent area is provided on the surface of the guide channel section 33, the urine received from the urine tray section 20 can be efficiently guided to the inlets 111 and 131 of the sensor unit 100. These features are extremely useful in efficiently measuring even small amounts of urine excreted by animals without loss.

[0147] The urine guided by the guide channel section 33 is injected into the inlets 111 and 131 of the sensor unit 100 through the opening 33a of the guide channel section 33.

[0148] When urine is injected into the inlets 111 and 131, the sensor unit 100 supplies the urine to each of the test areas 112a in the colorimetric inspection section 110 at the same time, as described above. Then, each colorimetric reagent piece 202 of the colorimetric test paper 200 attached to the test paper placement area 112 of the colorimetric inspection section 110 shows a color reaction. Furthermore, if the sensor unit 100 is equipped with an electrochemical measurement section 130 in addition to the colorimetric inspection section 110, the urine injected into the inlets 111 and 131 also flows into the electrode area 132 of the electrochemical measurement section 130, and the electrode 136 of the electrode area 132 is immersed in the urine.

[0149] Subsequently, the sensor module 32 starts measuring the urine received by the sensor unit 100, triggered by the aforementioned start trigger or after a predetermined time has elapsed since the start trigger.

[0150] Specifically, in the sensor module 32, the detection element unit 32c measures the color of each colorimetric reagent piece 202 of the colorimetric test paper 200 that shows a color reaction in the sensor unit 100, while the illumination unit 32d is irradiating it with light. In addition, the detection element unit 32c may also measure the color of a reference color sample. The detection element unit 32c then notifies the measuring instrument unit 32b of the electrical signal obtained from the color measurement.

[0151] In this case, if the space in which the sensor unit 100 and the detection element unit 32c are arranged is made of a light-shielding material, the space will be treated as a so-called darkroom. In addition, light of a predetermined wavelength is emitted from the illumination unit 32d. As a result, the detection result obtained by the color measurement performed by the detection element unit 32c will have good detection accuracy, free from the influence of ambient light and other factors.

[0152] Furthermore, in the sensor module 32, after the electrode 136 in the sensor unit 100 is immersed in urine, the measuring instrument unit 32b performs electrochemical measurement. The electrochemical measurement method can be any known technique. Through such electrochemical measurement, the measuring instrument unit 32b measures the concentration of specific components in the urine excreted from the animal.

[0153] In this way, once the sensor unit 100 obtains the results of the measurement process for the urine (i.e., the electrical signal obtained by the color measurement by the detection element unit 32c, the results of the electrochemical measurement using the electrode 136, etc.), the measuring instrument unit 32b outputs the results of the measurement process as measurement result information to the external information terminal device 2.

[0154] When information is output from the measuring instrument section 32b of the sensor module 32, the external information terminal device 2 acquires the output information. Based on the acquired information, the external information terminal device 2 performs testing on the urine that was measured by the measuring sensor 2. More specifically, the testing of the urine may include measuring the concentrations of specific components in the urine, such as urinary glucose, albumin, protein, creatinine, ketone bodies, glucose, specific gravity, occult blood, hydrogen ion concentration (pH), nitrite, and white blood cells. In addition to measuring the concentrations of specific components in the urine as described above, the testing performed by the external information terminal device 2 may also include determining the health status of animals using the animal toilet unit 1 (for example, determining whether the animal is healthy, requires observation, or requires treatment).

[0155] When the External Information Terminal 2 performs a test to determine the concentration of a specific component in the urine, it outputs information regarding the results of the test (hereinafter simply referred to as "processing result information"). Specifically, for example, the processing result information is displayed on the display unit of the External Information Terminal 2. Furthermore, if the External Information Terminal 2 is connected to another device, such as a computer system in a veterinary hospital, the External Information Terminal 2 outputs the processing result information to that other device. This allows the other device to share the processing result information from the External Information Terminal 2, enabling its user (for example, the veterinarian of an animal using the animal toilet unit 1) to refer to and understand the content of that processing result information, and to issue instructions for the next examination based on that understanding.

[0156] Furthermore, the external information terminal device 2 may, in addition to outputting processing result information, also output various information related to the processing result information (hereinafter simply referred to as "related information") on its display unit. In this case, the related information shall be transmitted from other devices on the network that are communicably connected to the external information terminal device 2. Examples of other devices on the network include the computer equipment of the animal hospital mentioned above, and computer equipment (host servers or cloud servers) managed by various companies that cooperate with the animal hospital. Examples of information transmitted from other devices include information related to the diagnosis results at the animal hospital and product advertisement information provided in accordance with those diagnosis results.

[0157] By having the external information terminal device 2 output this information, users of the external information terminal device 2 (i.e., owners of animals using the animal toilet unit 1) can refer to the output information from the external information terminal device 2 and understand its contents. Therefore, by utilizing the contents of the output information from the external information terminal device 2, it becomes possible to assist in maintaining the health of animals using the animal toilet unit 1.

[0158] Afterward, the owner of the animal that used the animal toilet unit 1 performs post-processing of the animal toilet unit 1. Specifically, as part of the post-processing, the owner pulls out the pull-out tray section 30 from the housing section 10 of the animal toilet unit 1, disposes of the urine received on the side of the pull-out tray section 30, and also disposes of the colorimetric test paper 200 and guide channel section 33 used for measuring the urine. At this time, it is preferable if the discarded items are made of combustible material, as this makes disposal within the household easier.

[0159] Next, determine whether the animal toilet unit 1 requires further preparation for use. If so, repeat the above-described procedure. If no further preparation is needed, discontinue use of the health support system.

[0160] (9) Effects of animal toilet units and health support systems The animal toilet unit 1 and the health support system including the animal toilet unit 1 described above produce one or more of the following effects.

[0161] (k) According to the animal toilet unit 1 of this embodiment, the guide channel 33 guides the urine excreted in the urination tray 20 to the inlets 111 and 131 of the sensor unit 100. Therefore, it is possible to perform a urine test on the urine excreted by a pet animal in the animal toilet unit 1 without imposing an excessive burden on the animal or its owner. Furthermore, the sensor unit 100 mounted on the animal toilet unit 1 performs colorimetric testing using at least colorimetric test paper 200. This colorimetric testing allows for the simple and rapid detection of multiple components in the test liquid, and even in this case, it is possible to detect the components with high accuracy. Based on the above, the animal toilet unit 1 of this embodiment allows for accurate measurement of the components in the urine excreted by animals using the animal toilet unit 1 without compromising the convenience of the users of the animal toilet unit 1 (animal owners, etc.), and as a result, it becomes possible to assist in maintaining the health of animals using the animal toilet unit 1.

[0162] (l) In this embodiment, the guide channel section 33 is configured to be detachable from the housing section 10. This allows the guide channel section 33 to function as a disposable item that can be replaced as needed or at regular intervals. Used sections can be removed and unused sections can be newly installed, which is preferable in terms of hygiene and infection prevention. Furthermore, adverse effects caused by impurities such as contamination can be easily eliminated, which is very useful in ensuring good measurement accuracy in the sensor unit 100.

[0163] (m) In this embodiment, the guide channel section 33 is made of a water-resistant and flexible material. The water resistance prevents urine from seeping into the guide channel section 33, ensuring that urine from the urination tray section 20 is reliably guided to the inlets 111 and 131 of the sensor unit 100. Furthermore, the flexibility allows for easy attachment and detachment of the guide channel section 33, and helps to prevent damage during such work.

[0164] (n) In this embodiment, a shape correction member is attached to the guide channel section 33. Therefore, even if the guide channel section 33 is flexible, it is easy to maintain the shape of the guide channel section 33. In other words, while ensuring good workability during attachment and detachment, urine from the urination tray section 20 can be reliably guided to the inlets 111 and 131 of the sensor unit 100.

[0165] (o) In this embodiment, a water-repellent area is partially provided on the surface of the guide channel section 33. Therefore, urine received from the urine tray section 20 can be efficiently guided to the inlets 111 and 131 of the sensor unit 100. In other words, even if only a small amount of urine is excreted by the animal, that small amount of urine can be efficiently guided to the sensor unit 100 without loss, making it possible to measure that small amount of urine with the sensor unit 100.

[0166] (p) In this embodiment, at least one of the guide channel section 33 or the sensor unit 100 is equipped with a filter section to remove foreign matter contained in the urine. Therefore, it is possible to prevent foreign matter in the urine from adversely affecting the measurement results of the sensor unit 100, which is very useful in ensuring good measurement accuracy in the sensor unit 100.

[0167] (q) In this embodiment, the sensor module 32 includes a detection element section 32c in addition to the sensor unit 100. Therefore, it is possible to quantitatively measure the color of each colorimetric reagent piece 202 of the colorimetric test paper 200 attached to the sensor unit 100 after the color reaction using an electrical signal, which is very useful for improving the accuracy of colorimetric inspections performed using the sensor unit 100.

[0168] (r) In this embodiment, the sensor module 32 is equipped with an illumination unit 32d, which irradiates each colorimetric reagent piece 202 with light of a predetermined wavelength. In other words, the color of each colorimetric reagent piece 202 is detected based on the reflected light from each colorimetric reagent piece 202 in response to the light irradiated from the illumination unit 32d. Therefore, the color of each colorimetric reagent piece 202 after the color reaction is measured while eliminating wavelength fluctuations of the irradiated light, which is extremely useful for improving the accuracy of colorimetric inspection performed using the sensor unit 100.

[0169] (s) In this embodiment, the sensor unit 100 is modularized together with the detection element unit 32c and the illumination unit 32d to form a sensor module 32. In other words, when the sensor module 32 is mounted on the animal toilet unit 1, the detection element unit 32c and the illumination unit 32d are positioned opposite the colorimetric test paper 200 attached to the sensor unit 100. Therefore, the positioning of the detection element unit 32c and the illumination unit 32d relative to the sensor unit 100 is simplified, and the accuracy of the colorimetric inspection performed using the sensor unit 100 can be easily improved while suppressing the complexity of the configuration required for such positioning.

[0170] (t) In this embodiment, the space in which the sensor unit 100 and the detection element section 32c are arranged is made of a light-shielding material. As a result, the detection element section 32c arranged in this space can perform color detection on the colorimetric test paper 200 attached to the sensor unit 100 without being affected by ambient light, and this is extremely useful in improving the accuracy of colorimetric inspection performed using the sensor unit 100.

[0171] (u) In this embodiment, the measuring instrument section 32b of the sensor module 32 functions as a communication control unit that transmits information acquired within the animal toilet unit 1 to an external information terminal device 2. Therefore, according to the health support system including the animal toilet unit 1 and external information terminal device 2 of this embodiment, the external information terminal device 2 can perform analysis (health determination) of the urine excreted by the animal based on the measurement result information from the sensor module 32 of the animal toilet unit 1. As a result, by using the animal toilet unit 1, it becomes possible to accurately measure the components of the urine excreted by animals using the animal toilet unit 1 without compromising the convenience of the user (animal owner, etc.). Furthermore, by referring to the processing result information output by the external information terminal device 2, the user of the external information terminal device 2 (i.e., the owner of the animal using the animal toilet unit 1) can understand the content of that information. In other words, by utilizing the content of the processing result information output by the external information terminal device 2, it becomes possible to assist in maintaining the health of the animals using the animal toilet unit 1. Furthermore, if the external information terminal device 2 outputs related information in addition to the processing result information (for example, information regarding the diagnosis results at the animal hospital, or product advertisements provided in accordance with those diagnosis results), users of the external information terminal device 2 will be able to obtain a variety of information that can be useful in assisting the maintenance of the health of animals using the animal toilet unit 1, making it even more convenient.

[0172] (10) Variations of animal toilet units Although the animal toilet unit 1 according to this embodiment has been described in detail above, this disclosure is not limited to the embodiments described above, and various modifications are possible without departing from the spirit thereof.

[0173] For example, in the above embodiment, the sensor unit 100 is shown as a module 32 together with the detection element 32c and the illumination unit 32d, but it is not necessarily limited to this. The sensor unit 100 may be placed in the drawer tray 30 as a single unit without being modularized. Even in that case, for example, after removing the sensor unit 100 from the drawer tray 30, it is possible to perform a colorimetric inspection using the sensor unit 100 by using the camera function of the external information terminal device 2 to image each colorimetric reagent piece 202 of the colorimetric test paper 200 in the sensor unit 100, and then using the information processing function of the external information terminal device 2 to perform a color measurement of each colorimetric reagent piece 202.

[0174] (11) Variations of health support systems The same applies to health support systems. In other words, the health support system according to this embodiment can also be modified in various ways without departing from its essence.

[0175] Other embodiments of the health support system are described below. However, this section will primarily describe the differences from the embodiments described above, and will omit explanations of other points.

[0176] Figure 10 is a schematic diagram illustrating an example of the general configuration of a health support system according to another embodiment.

[0177] (Overall structure) As shown in the diagram, the health support system described here comprises multiple animal toilet units 1, each of which is equipped with a sensor module 32. The measuring instrument section 32b of each sensor module 32 is configured to communicate with an external terminal device located on a communication line 6, such as a wide-area network.

[0178] External terminal devices on the communication line 6 include, for example, smartphones 301, 302, 303, ... which are mobile terminal devices used by animal owners, and computer devices 401, 402, 403, ... which are located on the communication line 6. Computer devices 401, 402, 403, ... include, for example, those installed in animal hospitals where the animal's primary veterinarian is located, and those managed by companies that provide pet-related products and services. Furthermore, the external terminal device on the communication line 6 is an information processing device 500 that can communicate with each of the measurement sensors 2, smartphones 301, 302, 303, ..., and computer devices 401, 402, 403, .... In other words, in this embodiment, the external terminal device on the communication line 6 includes the information processing device 500.

[0179] (Information processing device) The information processing device 500 has the functionality of a computer and is configured to perform various information processing tasks through the execution of a pre-installed program (software), with the software and computer hardware resources working together. One example of the information processing performed by the information processing device 500 is the provision of advice information. This advice information includes, for example, information indicating recommended actions that the information recipient should take, and advertising information directed at the information recipient. Details of this will be described later with specific examples.

[0180] In order to process the provision of advice information, the information processing device 500 has at least the functions of an information extraction unit 501, an information provision unit 502, and an information database unit 503. The information extraction unit 501 has the function of extracting advice information from the information database unit 503 that is suitable for the measurement results from the measurement sensor 2. The information provision unit 502 has the function of providing the advice information extracted by the information extraction unit 501 to at least one of the external terminal devices on the communication line 6 other than the information processing device 500. The information database unit 503 has the function of pre-storing various advice information that is suitable for the measurement results that are expected to be obtained from the measurement sensor 2, while associating it with the said measurement results.

[0181] Of these functions, at least the functions of the information extraction unit 501 and the information provision unit 502 are realized by executing a predetermined program in the information processing device 500. In this case, such predetermined program corresponds to a specific example of the "information processing program" in this embodiment. Furthermore, a specific example of an "information processing program" may be provided by storing it on a recording medium readable by the information processing device 500 (e.g., a magnetic disk, optical disk, magneto-optical disk, semiconductor memory, etc.), as long as it can be installed on the information processing device 500, or it may be provided from an external source via a network such as the Internet or a dedicated line.

[0182] (Example of processing operation) Next, we will describe an example of the processing operation in the health support system described above. Figure 11 is a flowchart showing a specific example of the processing operation in the health support system according to this embodiment.

[0183] In the health support system according to this embodiment, when an animal excretes urine in any of the animal toilet units 1, a sensor module 32 attached to the animal toilet unit 1 measures the components of the urine excreted in the animal toilet unit 1 (step 201, hereafter steps are abbreviated as "S"). The measuring instrument unit 32b of the sensor module 32 then transmits the measurement result to the information processing device 500 on the communication line 6 via the communication line 6. As a result, the information processing device 500 obtains the measurement result of the urine from the sensor module 32 (S202).

[0184] When the sensor module 32 obtains measurement results, the information processing device 500 first determines the quality level of the urine from which the measurement results were obtained based on the acquired measurement results (S203). The quality level is an indicator of the quality of the components of the urine. For example, if the content of a specific component in the urine to be evaluated can be quantified, the quality level can be determined in multiple stages according to the content, such that the higher the content, the lower the quality level, and the lower the content, the higher the quality level. More specifically, the content of a specific component may be classified into five ranges, and the quality level may be classified in five stages from lowest to highest content as "0 (very good)", "1 (good)", "2 (average)", "3 (caution)", and "4 (bad or poor)". Note that the quality level is not necessarily limited to a specific form (for example, a five-stage classification) as long as it is classified based on an arbitrary threshold set in advance.

[0185] After determining the quality level, the information processing device 500 then extracts advice information that matches the measurement results from the measurement sensor 2 (S204). Specifically, after determining the quality level, the information extraction unit 501 accesses the information database unit 503 and reads out advice information that matches the determined quality level. At this time, the information database unit 503 is pre-stored with multiple pieces of advice information corresponding to the quality level linked to each other, as advice information that matches the measurement results from the measurement sensor 2.

[0186] Subsequently, the information processing device 500, through its information provision unit 502, provides the advice information extracted by the information extraction unit 501 to an external terminal device on the communication line 6 (S205). The external terminal device to which the advice information is provided is at least one of the smartphones 301, 302, 303, ... or computer devices 401, 402, 403, ... other than the information processing device 500.

[0187] In this case, the smartphones 301, 302, 303, ... or computer devices 401, 402, 403, ... to which the advice information is provided will be used by at least one of the users of the service using the animal toilet unit 1 or the provider of said service. For example, smartphones 301, 302, 303, etc., are primarily used by pet owners, and therefore will be used by users of the service utilizing the animal toilet unit 1. Regarding computer devices 401, 402, 403, etc., if they are installed in an animal hospital where the animal's primary veterinarian is located, for example, they may be used by the provider of the service using the animal toilet unit 1, as well as by the users of that service. Also, if they are managed by a company that provides pet-related products or services, for example, they will be used by the provider of the service using the animal toilet unit 1.

[0188] Thus, the advice information is provided to at least one of the following: a terminal device used by a user of the service using the animal toilet unit 1, or a terminal device used by a provider of the service using the animal toilet unit 1.

[0189] Here, we will explain the advice provided with specific examples. Figure 12 is an explanatory diagram showing a specific example of the advice information provided in the health support system according to this embodiment.

[0190] For example, consider the case of providing advice information to an animal owner (i.e., the owner of Animal Toilet Unit 1). In this case, the recipient of the information is the animal owner, who is a user of the service using Animal Toilet Unit 1. The recipient of the advice information is the smartphone 301, 302, 303, ... used by the recipient (i.e., the animal owner).

[0191] In this case, the advice information provided may include information indicating recommended actions that the recipient should take, as well as advertising information targeted at the recipient. Specifically, for example, as shown in Figure 12(a), along with the quality level determination result, text information such as "Please consult your doctor immediately," which indicates recommended actions that the recipient should take, is displayed on the screen of smartphones 301, 302, 303, etc. as advice information that conforms to that quality level. Also, for example, as shown in Figure 12(b), along with the quality level determination result, advertising information related to pet food, exercise goods, veterinary hospitals, thermometers, etc., targeted at the recipient is displayed on the screen of smartphones 301, 302, 303, etc., as advice information that conforms to that quality level.

[0192] As described above, when the target audience for information is an animal owner, it is conceivable to provide at least one of the following as helpful advice for the owner: information indicating recommended actions that the target audience should take, or advertising information directed at the target audience.

[0193] Furthermore, consider the case of providing advice to a veterinarian at an animal hospital (for example, the primary care physician for an animal). In this case, the recipient of the information is the veterinarian at the animal hospital, who may be both a user of the service using the animal toilet unit 1 and a provider of the service using the said animal toilet unit 1. The recipients of the advice are the computer devices 401, 402, 403, ... installed in the animal hospital.

[0194] In this case, the advice information provided will include information indicating recommended actions that the information recipient should take. Specifically, as shown in Figure 12(c), along with the result of determining the quality level, text information such as "Please judge the history of changes and whether a medical examination is necessary," which indicates recommended actions that the information recipient should take as advice information that conforms to that quality level, will be displayed on the display screens of computer devices 401, 402, 403, ... Note that here, we have exemplified information indicating recommended actions when the information recipient is a service provider, but this is merely an example, and if the information recipient is a service user, information should be provided accordingly.

[0195] As described above, when the recipient of the information is a veterinarian, it is conceivable to provide information that indicates recommended actions that the recipient should take, as this would be beneficial advice for the veterinarian.

[0196] Furthermore, consider the case where advice information is provided to a company that provides pet-related products or services (hereinafter simply referred to as "provider"). In this case, the recipients of the information are the provider or the person in charge of operations at the provider, who are the providers of services using the animal toilet unit 1. The recipients of the advice information are the computer devices 401, 402, 403, ... managed by the provider.

[0197] In this case, the advice information provided includes various types of advertising information. Specifically, as shown in Figure 12(d), along with the result of determining the quality level, advertising information about services and products that should be advertised to service users is displayed on the display screens of computer devices 401, 402, 403, ... as advice information that conforms to that quality level.

[0198] As described above, when the recipient of the information is a providing company, it is conceivable to provide advertising information about services or products that should be promoted to service users as beneficial advice for that providing company.

[0199] (Effects and effects of the health support system according to this embodiment) The health support system according to the embodiment described above provides one or more of the following effects.

[0200] (v) The health support system of this embodiment provides advice information that matches the measurement results from the sensor module 32 to at least one of the terminal devices used by users of the service using the animal toilet unit 1 or the terminal device used by the provider of the service using the animal toilet unit 1. As a result, the person who receives the advice information can easily and appropriately determine what treatment or response should be taken for the animal using the animal toilet unit 1 by understanding the content of the advice information. In other words, users of the health support system will have great convenience. [Explanation of symbols]

[0201] 1... Animal toilet unit, 2... External information terminal device, 6... Communication line, 10... Housing part, 11... Cover member, 12... Inclined slope, 20... Urination tray part, 21... Mesh part, 30... Pull-out tray part, 31... Suction member, 32... Sensor module, 32a... Detection unit, 32b... Measuring instrument part, 32c... Detection element part, 32d... Lighting part, 32e... Stay part, 32f... Insertion port, 32g... Support member, 33... Guide channel part, 33a... Opening, 33b... Inclined sheet part, 33c... Frame, 33d... Spherical member, 100... Sensor unit, 110... Colorimetric inspection part, 111... Inlet, 112 ...Test paper placement area, 112a...Inspection area, 113...Inflow path, 113a...Common flow path, 113b...Connecting passage, 114...Ventilation area, 115...Color sample placement area, 120...Cover member, 130...Electrochemical measurement unit, 131...Inlet, 132...Electrode area, 133...Inflow path, 134...Ventilation path, 135...Connection terminal, 136...Electrode, 200...Colorimetric test paper, 201...Substrate, 202...Colorimetric reagent piece, 301, 302, 303...Smartphone, 401, 402, 403...Computer device, 500...Information processing device, 501...Information extraction unit, 502...Information provision unit, 503...Information database unit

Claims

1. An inlet for receiving the test fluid, Multiple test areas, each containing several types of colorimetric reagent pieces, An inflow path is configured to allow the sample fluid received at the inlet to flow into each of the multiple testing areas, and to synchronize the timing of the inflow of the sample fluid into each testing area. A sensor unit equipped with the following features.

2. The aforementioned inflow route is, A storage area for storing the sample fluid received at the inlet, It has a plurality of communication passages that connect the storage area and each of the plurality of inspection areas, The storage area and the multiple connecting passages are configured such that the test fluid flows from the storage area to each of the multiple testing areas via the multiple connecting passages in a timely manner. The sensor unit according to claim 1.

3. The plurality of inspection areas are arranged side by side on the side of the storage area that is above it in the direction of gravity. The sensor unit according to claim 2.

4. The inflow path is configured such that the inflow resistance of the test fluid to each of the multiple inspection areas differs, corresponding to the difference in the flow path length to each of the multiple inspection areas. The sensor unit according to claim 1.

5. Between the multiple inspection areas, at least one of either a rib portion or a water-repellent region is provided to isolate each inspection area. The sensor unit according to claim 1.

6. Having at least one of a hygroscopic member or a covering member placed at the corresponding location in the inspection area. The sensor unit according to claim 1.

7. The system includes a test paper placement area on which test papers equipped with the aforementioned multiple types of colorimetric reagent pieces are arranged. The test paper placement area is configured to include the plurality of inspection areas. The sensor unit according to claim 1.

8. The system includes a color sample placement area where a reference color sample corresponding to the colorimetric reagent piece is placed. The test papers placed in the test paper placement area and the color samples placed in the color sample placement area are configured to be visible from the outside. The sensor unit according to claim 7.

9. It has an electrode region where electrodes constituting an electrochemical sensor are arranged, The inflow path is configured to allow the test fluid received at the inlet to flow into the electrode area. The sensor unit according to claim 1.

10. The electrode is equipped with a connecting terminal that is electrically connected to it, The location of the aforementioned connection terminals is configured to allow insertion into and removal from the socket of an external device. The sensor unit according to claim 9.

11. A colorimetric test paper used in a sensor unit according to any one of claims 1 to 10, The device comprises a base material and the plurality of colorimetric reagent pieces arranged on the base material, The multiple types of colorimetric reagent pieces are arranged on the substrate at intervals from each other, and are positioned on the substrate so as to be located in the multiple inspection areas of the sensor unit when the sensor unit is attached to the sensor unit. Colorimetric test paper.

12. Between the multiple types of colorimetric reagent pieces, at least one of a rib portion or a water-repellent region is provided to isolate each colorimetric reagent piece. The colorimetric test paper according to claim 11.

13. The aforementioned multiple types of colorimetric reagent pieces are arranged on the substrate such that their respective surfaces lie on the same plane. The colorimetric test paper according to claim 11.

14. A sensor unit according to any one of claims 1 to 10, The urinary tract, which functions as the site of urine excretion by animals, A guide channel section that guides the urine excreted in the urination section to the inlet of the sensor unit as the test fluid, An animal tray unit equipped with this feature.

15. The housing comprises the sensor unit, the urination section, and the guide channel section, and supports or houses them. The guide channel section is configured to be detachably attached to the housing section. The animal toilet unit according to claim 14.

16. The aforementioned guide channel is formed of a water-resistant material. The animal toilet unit according to claim 15.

17. The guide channel portion is formed of a flexible material. The animal toilet unit according to claim 16.

18. It is equipped with a shape correction member attached to the aforementioned guide channel section, The shape correction member corrects the shape of the guide channel to a shape that guides the urine received from the urination section to the inlet of the sensor unit. The animal toilet unit according to claim 17.

19. A water-repellent region is partially provided on the surface of the guide channel portion. The animal toilet unit according to claim 14.

20. A filter is provided to remove foreign matter contained in the test liquid, at least one of the guide channel section or the sensor unit. The animal toilet unit according to claim 14.

21. The sensor unit includes a detection element section that detects the color of the colorimetric reagent piece arranged in the inspection area. The animal toilet unit according to claim 14.

22. The sensor unit includes an illumination unit that irradiates light onto the colorimetric reagent piece placed in the inspection area. The animal toilet unit according to claim 21.

23. The sensor unit, the detection element unit, and the illumination unit are modularized. The animal toilet unit according to claim 22.

24. The space in which the sensor unit and the detection element are arranged is made of a light-shielding material. The animal toilet unit according to claim 21.

25. The unit includes a communication control unit that transmits information acquired within the animal toilet unit to an external terminal device. The animal toilet unit according to claim 14.

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