JP2002098628A - Excrement measuring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate disturbance in working reliability over a prolonged period as caused by contamination due to excrement, substances derived therefrom and organisms using the excrement as a nutrition source in a piping system which undergoes qualitative and quantitative measurement of components contained in the excrement by an optical measuring method. SOLUTION: A sample cell holding a specimen as facing a light source is arranged to be replaceable through an inspection port 14 provided in an outer frame of a measuring device 10 of the excrement measuring apparatus. This facilitates the periodical replacement of the sample cell for optical measurement without disassembling an inner machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to purifying and maintaining a piping system for qualitatively and quantitatively measuring components contained in excreta by an optical measuring method, and particularly to secure long-term measurement reliability. Particularly, the present invention relates to a long-term reliability maintaining structure of a suitable excrement measuring device.

[0002]

2. Description of the Related Art The details found in JP-A-2000-8138 are as follows. One example of a measurement system configuration diagram of the excrement measurement device is shown in FIG. This applies to a test sample containing water, chloroform or acetone, which are solvents that rotate the polarization direction of light by the optical Faraday effect when a magnetic field is applied, and fructose, sucrose, glucose, or protein, which are solutes dissolved in the solvent. A method of transmitting polarized light and measuring the optical rotation of a solute based on the resulting change in the polarization direction of the light, and applying a magnetic field to the test sample to change the polarization direction of the light transmitted therethrough. A method of measuring the optical rotation of the solute based on the magnitude of the magnetic field when the amount of change in the optical rotation direction caused by the solute and the amount of change in the optical rotation direction caused by the application of the magnetic field have a predetermined relationship. is there.

[0003]

The piping system for qualitatively and quantitatively measuring the components contained in the excrement by the conventional optical measurement method is provided with the excrement, the substance resulting therefrom, and the excrement as a nutrient source. There is a case where the operation reliability over a long period of time is adversely affected by being contaminated by living organisms. The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to maintain the cleanliness of a piping system using an optical measurement method, thereby excreting and substances resulting therefrom, and excreta. It is an object of the present invention to provide an excrement measuring device which is not contaminated by living organisms having nutrients and does not adversely affect the operation reliability for a long time.

[0004]

In order to achieve the above-mentioned object, the present invention provides a liquid crystal display device comprising: water, chloroform or acetone, which is a solvent for rotating the polarization direction of the light by applying a magnetic field by the optical Faraday effect; By transmitting polarized light and applying a magnetic field to a test sample containing dissolved solutes such as fructose, sucrose, glucose, and protein, the polarization direction of light passing through the test sample is changed, The optical rotation of the solute is measured based on the magnitude of the magnetic field when the amount of change in the optical rotation direction caused by the magnetic field and the amount of change in the optical rotation direction generated by application of the magnetic field are in a predetermined relationship. Based on the fructose, sucrose,
In the excrement measuring device for measuring the concentration of glucose or protein, a sample cell for storing the test sample and facing the light source can be exchanged from an inspection port provided on an outer periphery of the excrement measuring device. Therefore, it is easy to periodically exchange the sample cell for performing the optical measurement without disassembling the inner machine.

[0005] The second aspect of the present invention is characterized in that the sample cells can be exchanged in the form of only the sample cells, so that the cost incurred when exchanging the sample cells can be minimized.

According to a third aspect of the present invention, the sample cell can be replaced together with a magnetic field application coil arranged around the sample cell, so that it is not necessary to take out the sample cell from the coil when performing replacement. , Maintenance work is easy.

According to a fourth aspect of the present invention, the sample cell is exchangeable including a magnetic field applying coil disposed around the sample cell and a measurement system from a light source to an optical sensor. There is no possibility that the optical axis of the optical system facing the cell is shifted, and the measurement reliability after the replacement of the sample cell is not reduced.

In a fifth aspect of the present invention, an aqueous solution containing sodium hydroxide and a surfactant is passed through a measurement system pipe during non-measurement, and a sample cell for storing the test sample and facing the light source is provided. Since it is characterized by being made of alkaline tempered glass or transparent polypropylene, it is possible to remove stains due to proteins and aggregates thereof in urine, and the sample cell is not harmed.

According to a sixth aspect of the present invention, an alkaline ionized water obtained by electrolyzing city water is passed through a measurement system pipe during non-measurement.
In particular, it is possible to remove stains caused by proteins and their aggregates in urine.

A seventh aspect of the present invention is characterized in that alkaline water obtained by electrolyzing city water to which a soluble substance is added is passed through a measuring system pipe during non-measurement. In particular, it is possible to improve the effect of removing dirt from proteins and aggregates thereof in urine.

[0011] Claim 8 is characterized in that sodium chloride is used as a soluble substance, so that no special means is required for obtaining it.

[0012] The ninth aspect of the present invention is characterized in that the acidic liquid is passed through the measurement system pipe during non-measurement, so that it is possible to remove solids in urine and dirt from mold originating from urine. .

According to a tenth aspect of the present invention, since an oxidizing agent is added to the measuring system pipe during non-measurement, it is possible to remove solids in urine and dirt from mold originating from urine.

The eleventh aspect of the present invention is characterized in that hypochlorous acid is added as an oxidizing agent, so that solids in urine and mold stains originating from urine can be removed.

A twelfth aspect of the present invention is to provide a measuring system piping which is not being measured,
It is characterized by passing acidic ionized water obtained by electrolyzing city water, eliminating the need for replenishing consumable parts, especially for removing solids in urine and dirt from mold originating from urine. Can be taken.

A thirteenth aspect of the present invention relates to a measuring system pipe not being measured.
It is characterized by passing acidic ionic water obtained by electrolysis of city water to which a soluble substance has been added. The effect of removing dirt can be improved.

Claim 14 is characterized in that sodium chloride is used as the soluble substance, so that no special means is required for obtaining it.

According to a fifteenth aspect, for the sample cell,
Since titanium oxide exhibiting a photocatalytic effect is baked, organic substances attached to the sample cell can be decomposed to remove dirt, and the frequency of replacement of the sample cell can be reduced.

[0019]

FIG. 2 is a block diagram showing a system including only a measuring system of the excrement measuring apparatus according to the present invention. The excrement measuring device includes a urine collecting unit and a measuring unit. The urine collection unit includes a urine collection dish for collecting urine during excretion, a urine collection arm for rotating the urine collection dish, a urine collection motor, and a nozzle for spraying water for cleaning the urine collection dish. The measuring unit is a urine suction pump that suctions urine collected by the urine collection unit, a urine pool that stores urine sucked by the urine suction pump until a urine detecting element detects a predetermined amount, and quantifies and qualifies a predetermined component in urine. A urine sensor unit having the measurement system shown in FIG. 1, an acid reagent unit, a water supply mechanism in which a pressure reducing valve, a solenoid valve, and a switching valve for supplying washing water to a nozzle or a urine flow path of the urine collecting unit are arranged from the upstream side. ing. An RVS (Rotary Valve Syringe) for selectively switching the communication between the urine reservoir, the urine sensor section, the acid reagent section, and the water supply mechanism is provided. Each of these mechanisms is controlled by a controller connected to a power supply. In addition, the water supply to the water supply mechanism is performed from a branch adapter provided in the middle of a water supply path to the sanitary washing device installed in the toilet. The urine sucked from the urine collection plate in the urine collection unit is quantitatively or qualitatively measured for the components in the urine using an optical measurement system, and then sent to the urine collection unit and discharged to the toilet.

FIG. 3 is a flow chart showing the basic operation of only the measuring system of the excrement measuring device embodying the present invention. After turning on the power (S1), a predetermined initial operation is performed (S2).
ＳS4), and becomes ready. When the measurement start switch is turned on in urine collection (S5), the urine collection motor that swings the urine collection dish is driven (S6). When the urine collection tray starts collecting urine, the urine suction pump rotates forward and the urine is collected in the urine pool. Transmission is started (S7). After confirming that a certain amount of urine sucked from the urine collector has accumulated in the urine reservoir (S8), the urine is sent to the sample cell (S9). After measuring the optical rotation and the background scattered light intensity (S10, S11), the acid reagent that causes urine and protein to aggregate in the RVS is aspirated and stirred (S10).
12 to S14), transmitted to the sample cell (S15),
The scattered light intensity is measured again (S16). The difference between the background of the scattered light intensity and the background is the quantitative value of the protein concentration. Since the optical rotation was first measured as a composite value of the sugar rotating in the positive direction and the protein rotating in the negative direction, if the quantitative concentration value of the protein is known, the quantitative quantitative value of the sugar can be obtained by calculation. (S17).
After the sugar concentration was determined, the water supply mechanism was activated (S1).
8) Switching RVS (S19), sample cell and RV
S is washed (S20), followed by a urine pool, a urine suction pump,
The urine collection dish is washed (S21). Finally, the cleaning liquid is filled in the urine pipe (S22), and the measurement operation is completed.

FIG. 4 is a perspective view showing a state in which the excrement measuring device according to the present invention is attached to a Western-style toilet. Toilet bowl 1
The urine sucked from the urine sampler 9 (corresponding to the urine collecting unit in the block diagram of FIG. 2) attached to 1 is sent out to the measuring device 10 (corresponding to the measuring unit of FIG. 2) by the connecting hose, where sugar and sugar are collected. A quantitative or qualitative concentration measurement of the protein will be performed. An inspection port 14 is provided on the back side of the outer shell of the measuring device 10.

FIG. 5 is a perspective view of a measurement system mechanism (urine sensor) according to the present invention. A test sample containing water, chloroform, or acetone, which is a solvent that rotates the polarization direction of the light by the optical Faraday effect when a magnetic field is applied, and fructose, sucrose, glucose, or a protein that is a solute dissolved in the solvent, The sample is sent out from the insertion port 11 to the sample cell 3 and discharged from the outlet 12 after measurement toward the toilet. The measuring method deflects the light emitted from the light source 1 by the deflector 2, transmits the polarized light through the urine in the sample cell 3, and measures the optical rotation of the solute based on the resulting change in the polarization direction of the light. A magnetic field is applied to the test sample by the solenoid coil 4 to change the polarization direction of the light passing therethrough, and the change in the optical rotation direction caused by the solute and the change in the optical rotation direction generated by the application of the magnetic field are obtained. The optical rotation of the solute is measured by the analyzer 6 and the optical sensor 7 based on the magnitude of the magnetic field when the relationship becomes a predetermined relationship. Measuring machine 1
When the inspection port 14 provided on the back of the zero is opened, the measurement system mechanism can be taken out, and it is easy to periodically exchange the sample cell for performing optical measurement without disassembling the inner unit. Has become. If the sample cell 3 can be taken out and replaced in the form of only the sample cell 3, the cost incurred when the sample cell 3 is replaced can be minimized. If the sample cell 3 and the magnetic field applying solenoid coil 4 disposed around the sample cell 3 can be replaced, the sample cell 3 does not need to be taken out of the solenoid coil 4 at the time of replacement, and maintenance work is easy. If the sample cell 3, the solenoid coil 4 for applying a magnetic field, and the measurement system from the light source 1 to the optical sensor 7 can be exchanged, the optical axis of the optical system facing the sample cell 3 will not be displaced. The measurement reliability after the replacement of the cell 3 does not decrease. By exchanging the sample cell 3 based on the three concepts, it is possible to periodically remove solids and aggregates in urine generated in the measurement system mechanism, molds that use urine as a nutrient source, and the like. Further, when titanium oxide exhibiting a photocatalytic effect is baked on the portion of the glass surface through which the optical axis of the sample cell 3 is in contact with urine, the organic substances attached to the sample cell 3 are decomposed every time light passes through the sample cell 3. It is possible to reduce the frequency of replacing the sample cell 3 as much as possible.

FIG. 6 is a block diagram showing a cleaning system of the measuring system (urine sensor unit) of the excrement measuring apparatus according to the present invention. A switching valve is provided in a supply path to the sample cell of the measurement system mechanism, and the urine and the washing liquid can be selectively supplied to the sample cell by the switching valve. At the time of non-measurement, the sample cell is filled with the washing liquid, and at the time of measurement, the filled washing liquid is discharged. Various cleaning liquids are supposed. When an aqueous solution containing sodium hydroxide and a surfactant is passed, dirt from proteins and aggregates thereof in urine can be particularly removed. When alkaline ionic water obtained by electrolyzing city water is passed through, it is possible to remove dirt due to proteins and aggregates thereof, particularly in urine, without the need for supplementary consumable parts. When alkaline ionic water obtained by electrolyzing city water to which a soluble substance is added is passed through, alkalinity can be increased, and the effect of removing dirt from proteins and their aggregates in urine can be improved. . Since sodium chloride may be used as a soluble substance for increasing the alkalinity, no special means is required for obtaining it. When the acidic solution is passed, solids in urine and mold stains originating from urine can be removed. When an oxidizing agent is added, it is possible to remove solid matter in urine and mold stains originating from urine. By adding hypochlorous acid as an oxidizing agent, it is possible to remove solids in urine and dirt from mold originating from urine. When acidic ionic water obtained by electrolyzing city water is passed through, it is possible to remove solids in urine and stains caused by molds originating from urine, in particular, without the need for supplemental consumable parts.
When acidic ionic water obtained by electrolyzing city water with added soluble substances is passed through, the acidity is raised, and the effect of removing solids in urine and dirt from mold originating from urine is particularly effective. Can be improved. The use of sodium chloride as a soluble substance to increase the acidity does not require any special measures for its availability. It is necessary to select a transparent material for the optical axis passing surface of the sample cell, but if it is made of alkali-resistant tempered glass such as quartz glass or transparent polypropylene, the filled cleaning liquid will not deteriorate the optical axis passing surface . Although various types of cleaning liquids have been proposed, there is a difference in the cleaning effect for each type of liquid depending on the material combination of the piping system and the like. A cleaning solution having the highest cleaning effect may be selected by a trial of actual urine measurement.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating a form of optical urine component measurement of a conventional excrement measuring device.

FIG. 2 is a block diagram showing a system including only a measurement system of the excrement measuring device according to the present invention.

FIG. 3 is a flowchart showing a basic operation of only the measurement system of the excrement measuring device according to the present invention.

FIG. 4 is a perspective view showing a state in which the excrement measuring device according to the present invention is attached to a Western-style toilet.

FIG. 5 is a perspective view of a measurement system mechanism according to the present invention.

FIG. 6 is a block diagram showing a cleaning system of a measuring system of the excrement measuring device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Light source 2 Polarizer 3 Sample cell 4 Solenoid coil 5 Current source 6 Analyzer 7 Optical sensor 8 Computer 9 Urine collector 10 Measuring instrument 11 Insertion port 12 Outlet 14 Inspection port

Continued on front page F-term (reference) 2D038 ZA03 2G045 AA36 CB03 DA30 DA31 DA32 DA36 FA11 JA07 2G057 AA06 AB06 AC01 BA05 BC05 BC07 CB01 JA16 2G059 AA02 BB13 CC16 DD01 DD12 DD13 EE05 JJ19 JJ21 KK01 NN07 PP01

Claims (15)

[Claims] 1. The method includes water, chloroform, or acetone, which is a solvent for rotating the polarization direction of the light by an optical Faraday effect when a magnetic field is applied, and fructose, sucrose, glucose, or protein, which are solutes dissolved in the solvent. Transmitting polarized light and applying a magnetic field to the test sample,
The magnitude of the magnetic field when the polarization direction of light passing through the test sample is changed and the amount of change in the optical rotation direction caused by the solute and the amount of change in the optical rotation direction generated by application of the magnetic field have a predetermined relationship. Based on the measured optical rotation of the solute,
In the excrement measuring apparatus which measures the concentration of fructose, sucrose, glucose or protein in the test sample based on the optical rotation, a sample cell for storing the test sample and facing the light source is provided. An excrement measuring device characterized in that the excrement measuring device can be replaced through an inspection port provided on the outer periphery of the excrement measuring device. 2. The excrement measuring device according to claim 1, wherein the sample cell is replaceable in a form of only the sample cell. 3. The excrement measuring apparatus according to claim 1, wherein said sample cell is replaceable together with a magnetic field applying coil disposed around said sample cell. 4. The excretion according to claim 1, wherein the sample cell is replaceable including a magnetic field application coil arranged around the sample cell and a measurement system from a light source to an optical sensor. Object measuring device. 5. An aqueous solution to which sodium hydroxide and a surfactant are added is passed through a measurement system pipe during non-measurement.
The excrement measuring device according to any one of claims 1 to 4, wherein the sample cell is made of alkali-resistant tempered glass or transparent polypropylene. 6. The excretion according to claim 1, wherein alkaline ionized water obtained by electrolyzing city water is passed through a measurement system pipe during non-measurement. Object measuring device. 7. The method according to claim 1, wherein alkaline ionized water obtained by electrolyzing city water to which a soluble substance is added is passed through a measurement system pipe during non-measurement. 2. The excrement measuring device according to claim 1. 8. The excrement measuring device according to claim 7, wherein sodium chloride is used as the soluble substance. 9. The excrement measuring apparatus according to claim 1, wherein an acidic liquid is passed through a measuring system pipe during non-measurement. 10. The excrement measuring apparatus according to claim 1, wherein an oxidizing agent is added to a measuring system pipe during non-measurement. 11. The excrement measuring device according to claim 10, wherein hypochlorous acid is added as an oxidizing agent. 12. The excretion according to any one of claims 1 to 4, wherein acidic ionic water obtained by electrolyzing city water is passed through a measurement system pipe during non-measurement. Object measuring device. 13. The method according to claim 1, wherein acidic ionic water obtained by electrolyzing city water to which a soluble substance is added is passed through a measurement system pipe during non-measurement. 1
An excrement measuring device according to the paragraph. 14. The excrement measuring device according to claim 13, wherein sodium chloride is used as the soluble substance. 15. The excrement measuring apparatus according to claim 1, wherein titanium oxide exhibiting a photocatalytic effect is baked on the sample cell.