A device for rapid measurement of urine specific gravity, turbidity and color

Abstract

The utility model relates to detection device technical field, concretely relates to a kind of detection device of fast metering urine specific gravity, turbidity and color, including installation component, middle pass prism, specific gravity detection unit, turbidity color detection unit, color detection unit and temperature detection unit;Specific gravity detection unit emits light from middle pass prism side into total reflection, receives and collects data, through the fitting function that has been established, output specific gravity value, turbidity color detection unit emits light and transmits sample, receives and passes through sample scattered light data, obtains turbidity transmission data and color transmission data, combines fitting function, outputs turbidity value, color detection unit emits light and transmits sample, receives and passes through sample reflected light data, obtains color reflection data, and color transmission data combine fitting function, output color value, the detection device uses less sample detection, integrates urine specific gravity, turbidity and the detection of color, degree of automation is high, improve the accuracy of detection.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and in particular to a detection device for rapidly measuring the specific gravity, turbidity and color of urine. Background Technology

[0002] In routine urinalysis, the relative density of urine, or specific gravity, is a crucial test item, reflecting the concentration of solutes in urine. Current detection techniques suffer from low sensitivity, poor precision, narrow testing range, and are affected by strong acids and alkalis, as well as proteins in urine. They are only suitable for screening tests and cannot be used as indicators of changes in kidney function. Furthermore, existing handheld refractometer methods are cumbersome, time-consuming, lack flexibility, and have low automation.

[0003] In routine urinalysis, urine transparency, or turbidity, is a crucial test item, reflecting the content of suspended particulate matter in the urine. Urine turbidity is associated with various diseases, such as urinary tract infections and proteinuria. Urine turbidity is typically measured visually or by turbidimetry. However, these methods are highly subjective and easily affected by external factors, leading to inaccurate results. Currently available portable turbidimeters are time-consuming, require large sample volumes, lack flexibility, and have low automation.

[0004] In routine urinalysis, urine color detection is a crucial test, as urine color is associated with various physiological and pathological conditions. For example, hematuria may be related to urinary tract infections, stones, or tumors; jaundice suggests liver disease or biliary obstruction. Traditional urine color detection relies on visual observation, making an initial assessment by observing changes in urine color. However, visual observation is highly subjective and easily affected by factors such as lighting and environment, leading to inaccurate results. Current color analyzers are time-consuming, require large sample sizes, lack flexibility, and have limited automation.

[0005] In existing technologies, integrated detection schemes for urine specific gravity, turbidity, and color utilize a triangular prism tube for specific gravity detection and a quadrangular prism tube for turbidity and color detection, integrating these into a single device. Specific gravity and turbidity detection are separated into two independent modules, connected by piping to form a single detection unit. However, this increased piping leads to a higher volume of liquid being tested. Subsequent schemes, such as those connecting the turbidity / color detection prism and the specific gravity detection prism via through-holes in the prism holder, also present connection points, which inherently carry the risk of poor sealing.

[0006] In existing technologies, integrated detection schemes for urine specific gravity, turbidity, and color rely on light refraction through a liquid path for specific gravity detection. This light attenuation occurs in highly turbid or darkly colored samples, significantly reducing accuracy. Similarly, color detection uses transmission methods, which also suffer from light attenuation in highly turbid or darkly colored samples, further compromising accuracy.

[0007] In summary, urine specific gravity, turbidity, and color have significant clinical importance. Traditional methods for detecting urine specific gravity, turbidity, and color involve multiple testing devices, requiring considerable time and handling large numbers of samples, and are cumbersome to operate. These methods suffer from low sensitivity, high subjectivity, and low automation. Integrated testing solutions either simply integrate two separate modules—specific gravity detection and turbidity / color detection—into a single device, or connect the two modules via a through-hole. These solutions have drawbacks such as requiring a large number of samples, poor sealing, and significant space requirements. Furthermore, specific gravity detection methods rely on refraction through the liquid path, which can lead to inaccuracies in high-turbidity and dark-colored samples. Utility Model Content

[0008] The purpose of this invention is to provide a detection device for rapidly measuring the specific gravity, turbidity, and color of urine, aiming to overcome the shortcomings of traditional urine specific gravity, turbidity, and color detection, which require multiple detection devices, take a long time, have a large number of samples, are cumbersome to operate, have low sensitivity, are highly subjective, and have a low degree of automation.

[0009] To achieve the above objectives, this utility model provides a detection device for rapidly measuring the specific gravity, turbidity, and color of urine, including an installation assembly, a central prism, a specific gravity detection unit, a turbidity and color detection unit, a color detection unit, and a temperature detection unit; the temperature detection unit is mounted on one side of the installation assembly, the central prism is mounted on the side of the installation assembly away from the temperature detection unit, the specific gravity detection unit is mounted on the side of the installation assembly close to the central prism, the turbidity and color detection unit is mounted on one side of the installation assembly, and the color detection unit is mounted on the side of the installation assembly close to the turbidity and color detection unit.

[0010] The central prism is a hollow and transparent part. The hollow part can serve as a flow channel for urine samples, and the whole can serve as a detection optical path medium. The outer surface of the central prism cross-section is shaped like an inverted trapezoid or other irregular shape, and the hollow flow channel is above the inverted trapezoid.

[0011] The installation assembly includes a prism mounting base, an inlet adapter block, a prism light-shielding block, a sealing plate, and an outlet adapter block. The inlet adapter block is mounted on one side of the prism mounting base, the prism light-shielding block is mounted on one side of the inlet adapter block, the sealing plate is disposed on one side of the prism light-shielding block, and the outlet adapter block is mounted on the side of the prism light-shielding block away from the inlet adapter block.

[0012] The specific gravity detection unit includes a specific gravity light source and a specific gravity displacement sensor. The specific gravity light source is disposed on one side of the central prism, and the specific gravity displacement sensor is assembled on one side of the central prism.

[0013] The 90-degree turbidity scattering receiver, the turbidity color detection light source, and the turbidity color detection receiver are respectively mounted on one side of the central prism, the turbidity color detection light source is mounted on one side of the central prism, and the turbidity color detection receiver is mounted on the side of the central prism away from the turbidity color detection light source.

[0014] This invention relates to a rapid urine specific gravity, turbidity, and color detection device. The urine sample is transported to the central prism via an external system, where a stable fluid environment is created. The specific gravity detection unit emits light through a special structure on one side of the central prism, resulting in total internal reflection, and receives the collected data. The temperature detection unit then detects the current temperature and provides temperature compensation data. Based on an established fitting function, the specific gravity value is output. The turbidity and color detection unit emits light through the central prism, passing through the sample. After scattering and absorption by the sample, the light enters sensors at 90° and 180° angles to the incident light, respectively, obtaining data on turbidity scattering and transmission directions, and color transmission directions. These data, combined with an established turbidity fitting function, output the turbidity value. The color detection unit emits light through the central prism... The sample enters through one side of the prism, passes through it, and receives the reflected light data to obtain color reflection data. This data is then combined with the color transmission data obtained from the turbidity color detection unit to output a color value using an established fitting function. This detection device utilizes the integrated design of the central prism, allowing for testing with fewer samples and eliminating connection sealing risks, thus improving reliability, cost-effectiveness, and product competitiveness. By integrating the detection of urine specific gravity, turbidity, and color, it achieves a high degree of automation, saves manpower, and uses a total internal reflection scheme to measure urine specific gravity, transmission and scattering methods to detect turbidity, and transmission and reflection methods to detect color. This improves the accuracy of specific gravity, turbidity, and color detection, overcoming the shortcomings of traditional urine specific gravity, turbidity, and color detection methods, which require multiple detection devices, take a long time, have many samples, are cumbersome to operate, have low sensitivity, are highly subjective, and have a low degree of automation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a detection device for rapidly measuring the specific gravity, turbidity, and color of urine provided by this utility model.

[0017] Figure 2 This is a cross-sectional view of a detection device for rapidly measuring the specific gravity, turbidity, and color of urine provided by this utility model.

[0018] Figure 3 This is a longitudinal sectional view of a detection device for rapidly measuring the specific gravity, turbidity, and color of urine provided by this utility model.

[0019] In the diagram: 10-Installation component, 11-Prism mounting base, 12-Inlet adapter block, 13-Prism light-shielding block, 14-Sealing plate, 15-Outlet adapter block, 20-Central prism, 30-Specific gravity detection unit, 31-Specific gravity light source, 32-Specific gravity displacement sensor, 40-Turbidity and color detection unit, 41-90-degree turbidity scattering receiver, 42-Turbidity and color detection light source, 43-Turbidity and color detection receiver, 50-Color detection unit, 60-Temperature detection unit. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] Please see Figures 1 to 3 This utility model provides a detection device for rapidly measuring the specific gravity, turbidity, and color of urine, including an installation assembly 10, a central prism 20, a specific gravity detection unit 30, a turbidity and color detection unit 40, a color detection unit 50, and a temperature detection unit 60; the temperature detection unit 60 is mounted on one side of the installation assembly 10, the central prism 20 is mounted on the side of the installation assembly 10 away from the temperature detection unit 60, the specific gravity detection unit 30 is mounted on the side of the installation assembly 10 close to the central prism 20, the turbidity and color detection unit 40 is mounted on one side of the installation assembly 10, and the color detection unit 50 is mounted on the side of the installation assembly 10 close to the turbidity and color detection unit 40.

[0022] In this embodiment of the invention, a urine sample is transported to the central prism 20 by an external system, where a stable fluid occurs. The specific gravity detection unit 30 emits light through a special structure on one side of the central prism 20, resulting in total internal reflection and receiving the collected data. The temperature detection unit 60 then detects the current temperature and provides temperature compensation data. Based on an established fitting function, the specific gravity value is output. The turbidity and color detection unit 40 emits light from one side of the central prism 20, passing through the sample. After scattering and absorption by the sample, the light enters sensors at 90° and 180° angles to the incident light, respectively, obtaining data on turbidity scattering and transmission directions, and color transmission directions. Combined with the established turbidity fitting function, the turbidity value is output. The color detection unit 50 emits light from the central prism 20... The sample enters from the 0 side, passes through it, and receives the reflected light data to obtain color reflection data. This data is then combined with the color transmission data obtained by the turbidity color detection unit 40 to establish a fitting function and output a color value. This detection device utilizes the integrated design of the central prism 20, allowing for the detection of fewer samples and eliminating connection sealing risks, thus improving reliability, cost-effectiveness, and product competitiveness. By integrating the detection of urine specific gravity, turbidity, and color, it achieves a high degree of automation and saves manpower. It uses a total internal reflection scheme to measure urine specific gravity, transmission and scattering methods to detect turbidity, and transmission and reflection methods to detect color, improving the accuracy of specific gravity, turbidity, and color detection. This overcomes the shortcomings of traditional urine specific gravity, turbidity, and color detection methods, which require multiple detection devices, take a long time, involve many samples, are cumbersome to operate, have low sensitivity, are highly subjective, and have a low degree of automation.

[0023] Furthermore, the central prism 20 is a hollow and transparent part. The hollow part can serve as a flow channel for urine samples, and the whole can serve as a detection optical path medium. The outer surface of the central prism 20 has an inverted trapezoidal or other irregular shape, and the hollow flow channel is above the inverted trapezoid.

[0024] In this embodiment of the invention, the central prism 20 is a hollow, transparent component. The hollow portion serves as a flow channel for urine samples, and the entire component acts as a detection optical medium. The central prism 20 has three detection positions, one of which is a specific gravity detection position. The outer surface of the central prism 20 has an inverted trapezoidal or other irregular shape. The hollow flow channel is located above the inverted trapezoid, allowing the light source to enter from one side of the trapezoid, pass through the hollow detection surface of the sample flow channel, undergo total internal reflection, and exit from the other side of the trapezoid. The cross-section of the central prism 20 at the specific gravity detection position is an inverted trapezoid. At that time, the area formed by the incident angle and the exit angle on both sides of the trapezoid exactly encompasses all the critical angles required within the range of urine specific gravity variation. The cross-section of the central prism 20 at the specific gravity detection position is irregular in shape, and the incident angle and exit angle of the light only need to reach the critical angle of total internal reflection. The other two detection positions are the turbidity color detection position and the color detection position. The flow channel of the central prism 20 cross-section is regular or irregular in shape, and the sample liquid can flow stably from the flow channel. The outer surface of the cross-section is also regular or irregular in shape to ensure that the light can enter and exit without obstruction.

[0025] Preferably, at the turbidity color detection position and the color detection position, when the cross-sectional flow channel of the central prism 20 is a square, the sample liquid can flow stably from the flow channel. The four sides are planes, ensuring that light can enter and exit without obstruction. Except for the specific gravity detection position, the cross-sectional flow channel of the central prism 20 can be a regular shape such as a quadrilateral, triangle, or circle, or other irregular shapes, as long as it can stably pass through the liquid.

[0026] Furthermore, the mounting assembly 10 includes a prism mounting base 11, an inlet adapter block 12, a prism light-shielding block 13, a sealing plate 14, and an outlet adapter block 15. The inlet adapter block 12 is mounted on one side of the prism mounting base 11, the prism light-shielding block 13 is mounted on one side of the inlet adapter block 12, the sealing plate 14 is disposed on one side of the prism light-shielding block 13, and the outlet adapter block 15 is mounted on the side of the prism light-shielding block 13 away from the inlet adapter block 12.

[0027] In this embodiment of the utility model, the central prism 20 is mounted on the prism mounting base 11, the inlet is connected to the inlet adapter block 12, the outlet is connected to the outlet adapter block 15, and the outer layer is encapsulated by the prism light-shielding block 13 and the sealing plate 14 to form a whole.

[0028] Furthermore, the specific gravity detection unit 30 includes a specific gravity light source 31 and a specific gravity displacement sensor 32. The specific gravity light source 31 is disposed on one side of the central prism 20, and the specific gravity displacement sensor 32 is assembled on one side of the central prism 20.

[0029] In this embodiment of the invention, the specific gravity light source 31 and the specific gravity displacement sensor 32 are respectively installed on both sides of the inverted trapezoid of the central prism 20 and form a certain angle to ensure that part of the light emitted by the specific gravity light source 31 undergoes total internal reflection after passing through the inner surface of the central prism 20 loaded with the sample, and then enters the specific gravity receiver. Specifically, the light emitted by the specific gravity light source 31 enters from a special structure on one side of the central prism 20 to achieve total internal reflection. The specific gravity displacement sensor 32 receives and collects the data, and the temperature detection unit 60 detects the current temperature and provides temperature compensation data. Through the established fitting function, the specific gravity value is output. This technology utilizes the total internal reflection that occurs when light passes through the urine sample. The light does not pass through the sample and is not absorbed or attenuated by the sample, thereby improving the accuracy of existing integrated urine specific gravity, turbidity, and color detection technologies for detecting the specific gravity of high-turbidity and dark-colored samples.

[0030] Furthermore, the 90-degree turbidity scattering receiver 41, the turbidity color detection light source 42, and the turbidity color detection receiver 43 are respectively configured such that the 90-degree turbidity scattering receiver 41 is mounted on one side of the central prism 20, the turbidity color detection light source 42 is mounted on one side of the central prism 20, and the turbidity color detection receiver 43 is mounted on the side of the central prism 20 away from the turbidity color detection light source 42.

[0031] In this embodiment of the invention, the 90-degree turbidity scattering receiver 41, the turbidity color detection light source 42, and the turbidity color detection receiver 43 are mounted on three different surfaces of the central prism 20. The turbidity color detection light source 42 and the turbidity color detection receiver 43 are located on opposite surfaces of the central prism 20. The 90-degree turbidity scattering receiver 41 is located on the side adjacent to the turbidity color detection light source 42 and the turbidity color detection receiver 43. The turbidity color detection light source 42 emits light that enters from one side of the central prism 20 and passes through the sample. The 90-degree turbidity scattering receiver 41 receives the scattered light data from the sample, obtaining turbidity scattering data. The turbidity color detection receiver 43 receives the transmitted light data from the sample, obtaining turbidity transmission data and color transmission data. A turbidity value is output by combining the turbidity scattering data and the turbidity transmission data with an established fitting function. This technology uses turbidity transmission data and scattering data obtained from a single detection point. The two data are combined and an infrared monochromatic light source is configured to avoid inaccurate transmission data for samples with high turbidity and to avoid the influence of dark-colored samples on turbidity. This improves the accuracy of turbidity detection in existing integrated urine specific gravity, turbidity and color detection technologies.

[0032] Furthermore, the color detection unit 50 is composed of an integrated structure of a light source and a receiver. The light emitted by the light source enters from one side of the central prism 20, passes through the sample, and the receiver receives the reflected light data from the sample to obtain color reflection data. This data is then combined with the color transmission data obtained from the turbidity color detection position using an established fitting function to output a color value. This technology uses color transmission and reflection data obtained from two detection positions, combining the two sets of data to leverage their respective strengths and compensate for each other's weaknesses. This avoids inaccurate transmission data for samples with darker or lighter colors, thereby improving the color detection accuracy of existing integrated urine specific gravity, turbidity, and color detection technologies.

[0033] The device operates as follows:

[0034] Urine samples are transported from the external system of the detection device, entering through the inlet transfer block 12, flowing through the hollow channel of the central prism 20, and exiting through the outlet transfer block 15. The sample passes through the specific gravity detection position of the central prism 20. Light emitted by the specific gravity light source 31 undergoes total internal reflection after passing through the liquid side of the central prism 20, and the light signal is detected by the specific gravity displacement sensor 32, completing data acquisition. Combined with the temperature coefficient determined by the temperature detection unit 60, and through a pre-established fitting function, the specific gravity value is output.

[0035] The sample passes through the turbidity and color detection point where light emitted from the turbidity and color detection light source 42 passes through the central prism 20 and the sample. The light signal is detected by the 90-degree turbidity scattering receiver 41 and the turbidity and color detection receiver 43, completing data acquisition and obtaining one turbidity scattering data, one turbidity transmission data, and one color transmission data. By combining the turbidity scattering data and the turbidity transmission data with the established fitting function, the specific gravity value and turbidity value are output.

[0036] After the sample passes through the color detection section, the color detection unit 50 emits consecutive light rays that pass through the central prism 20 and the sample. The reflected light is received by the color detection unit 50 to detect the light signal, complete the data acquisition, obtain a color reflection data, and output the color value through the established fitting function.

[0037] This device improves upon traditional urine specific gravity, turbidity, and color detection methods, which suffer from drawbacks such as the need for multiple detection devices, long processing times, numerous samples, cumbersome operation, low sensitivity, high subjectivity, and low automation. It overcomes the shortcomings of existing integrated urine specific gravity, turbidity, and color detection technologies, which require numerous samples, have poor sealing, and occupy significant space. By measuring urine specific gravity without passing through the sample and utilizing total internal reflection, it improves the accuracy of specific gravity detection for high-turbidity and dark-colored samples. The device uses turbidity transmission and scattering data obtained from a single detection position, combining these two data points to avoid inaccurate transmission data for highly turbid samples, thus improving the accuracy of turbidity detection. Similarly, it uses color transmission and reflectance data obtained from two detection positions, combining these two data points to avoid inaccurate transmission data for darker and lighter-colored samples, thus improving the accuracy of color detection.

[0038] The above-disclosed embodiments are merely preferred embodiments of the detection device for rapidly measuring urine specific gravity, turbidity, and color according to the present invention. Of course, they should not be construed as limiting the scope of the present invention. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes according to the claims of the present invention still fall within the scope of the present invention.

Claims

1. A device for rapidly measuring the specific gravity, turbidity, and color of urine. Its characteristics are: It includes mounting components, a central prism, a specific gravity detection unit, a turbidity and color detection unit, a color detection unit, and a temperature detection unit; The temperature detection unit is mounted on one side of the mounting assembly, the through prism is mounted on the side of the mounting assembly away from the temperature detection unit, the specific gravity detection unit is mounted on the side of the mounting assembly close to the through prism, the turbidity and color detection unit is mounted on one side of the mounting assembly, and the color detection unit is mounted on the side of the mounting assembly close to the turbidity and color detection unit.

2. The detection device for rapidly measuring urine specific gravity, turbidity, and color as described in claim 1, characterized in that... ； The central prism is a hollow and transparent part. The hollow part can serve as a flow channel for urine samples, and the whole can serve as a detection optical path medium. The outer surface of the central prism cross-section is shaped like an inverted trapezoid or other irregular shapes, and the hollow flow channel is above the inverted trapezoid.

3. The detection device for rapidly measuring urine specific gravity, turbidity, and color as described in claim 1. Its characteristics are: The mounting assembly includes a prism mounting base, an inlet adapter block, a prism light-shielding block, a sealing plate, and an outlet adapter block. The inlet adapter block is mounted on one side of the prism mounting base, the prism light-shielding block is mounted on one side of the inlet adapter block, the sealing plate is disposed on one side of the prism light-shielding block, and the outlet adapter block is mounted on the side of the prism light-shielding block away from the inlet adapter block.

4. The detection device for rapidly measuring urine specific gravity, turbidity, and color as described in claim 3. Its characteristics are: The specific gravity detection unit includes a specific gravity light source and a specific gravity displacement sensor. The specific gravity light source is disposed on one side of the central prism, and the specific gravity displacement sensor is assembled on one side of the central prism.

5. The detection device for rapidly measuring urine specific gravity, turbidity, and color as described in claim 3, characterized in that... ； The 90-degree turbidity scattering receiver, the turbidity color detection light source, and the turbidity color detection receiver are configured such that the 90-degree turbidity scattering receiver is mounted on one side of the central prism, the turbidity color detection light source is mounted on one side of the central prism, and the turbidity color detection receiver is mounted on the side of the central prism away from the turbidity color detection light source.

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