Detection device for rapidly measuring specific gravity, turbidity and color of urine

Abstract

The invention relates to the technical field of detection devices, in particular to a detection device for rapidly measuring the specific gravity, turbidity and color of urine, which comprises a mounting assembly, a through prism, a specific gravity detection unit, a turbidity and color detection unit, a color detection unit and a temperature detection unit, light rays emitted by the specific gravity detection unit enter from one side of the through prism to be totally reflected, receive and collect data, pass through an established fitting function and output a specific gravity value, light rays emitted by the turbidity and color detection unit penetrate through a sample, receive data of scattered light rays passing through the sample, obtain turbidity transmission data and color transmission data, and output a turbidity value in combination with the fitting function. The color detection unit emits light to penetrate through the sample, receives light data reflected by the sample, obtains color reflection data, combines the color reflection data with the color transmission data to establish a fitting function, and outputs a color value, the detection device uses less sample detection, integrates urine specific gravity, turbidity and color detection, is high in automation degree, and improves the detection accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a detection device for quickly measuring the specific gravity, turbidity and color of urine. Background Art

[0002] In urine routine physical examinations, the relative density of urine, i.e., urine specific gravity, is an important detection item. Urine specific gravity is a reflection of the solute concentration index in urine. Existing detection technologies have low sensitivity, poor precision, narrow test ranges, are affected by strong acids, strong alkalis and proteins in urine, and are only suitable for use as screening tests and cannot be used as an index for evaluating renal function changes. In addition, the handheld refractometer method in the prior art is cumbersome to operate, time-consuming, not very flexible, and has a low degree of automation.

[0003] In urine routine physical examinations, the transparency of urine, i.e., urine turbidity, is an important detection item, which reflects the content of suspended particulate matter in urine. Urine turbidity is related to various diseases, such as urinary tract infections, proteinuria, etc. Urine turbidity detection usually adopts the visual method or the turbidimetry method. However, these methods are highly subjective and are easily affected by external factors, resulting in inaccurate measurement results. In the prior art, portable turbidity meters are time-consuming, require a large amount of samples, are not very flexible, and have a low degree of automation.

[0004] In urine routine physical examinations, the color detection of urine is an important detection item. The color of urine is related to various physiological and pathological states. For example, hematuria may be related to urinary tract infections, stones or tumors; jaundiced urine indicates liver diseases or biliary tract obstruction. The traditional urine color detection is through the visual method, and a preliminary judgment is made by observing the color change of urine. However, the visual method is highly subjective and is easily interfered by factors such as light and environment, resulting in inaccurate judgment results. In the prior art, color analyzers are time-consuming, require a large amount of samples, are not very flexible, and have a low degree of automation.

[0005] In the prior art, in the integrated detection scheme of urine specific gravity, turbidity and color, a detection device that integrates the use of a triangular prism tube to detect specific gravity and a quadrangular prism tube to detect turbidity and color divides the specific gravity detection and turbidity detection into two independent unit modules, and then connects the two through pipelines to integrate them into a detection device. However, due to the addition of pipeline connections, the amount of the liquid to be measured is increased. Subsequently, a scheme in which a turbidity and color detection prism and a specific gravity detection prism are connected through through-holes on a prism base is actually also a connection position, and there is a risk of poor sealing at the connection position.

[0006] In the prior art, in the integrated detection solution for urine specific gravity, turbidity, and color, the light for detecting the specific gravity method all generates refraction through the liquid path. For the detection of samples with high turbidity or deep color, the light is attenuated, and the detection accuracy will be greatly reduced. At the same time, the color is detected using the transmission method for color detection. For the detection of samples with high turbidity or deep color, the light is attenuated, and the detection accuracy will be greatly reduced.

[0007] In summary, urine specific gravity, turbidity, and color have quite important clinical significance. In the traditional detection methods of urine specific gravity, turbidity, and color, multiple detection devices are used to complete the detection under the conditions of long time, many samples, and relatively cumbersome operations, with disadvantages such as low sensitivity, strong subjectivity, and low automation. In the integrated detection solution, either the specific gravity detection module and the turbidity and color detection module are simply integrated into a device, or the two modules are connected through through-holes, with disadvantages such as using many samples, poor sealing, and large occupied space. At the same time, the method for detecting the specific gravity generates refraction through the liquid path for detection, and there is a disadvantage of inaccurate detection accuracy for samples with high turbidity and deep color. Summary of the Invention

[0008] The purpose of the present invention is to provide a detection device for quickly measuring urine specific gravity, turbidity, and color, aiming to improve the disadvantages of traditional detection of urine specific gravity, turbidity, and color, which requires multiple detection devices, long time, many samples, relatively cumbersome operations, low sensitivity, strong subjectivity, and low automation.

[0009] To achieve the above purpose, the present invention provides a detection device for quickly measuring urine specific gravity, turbidity, and color, including an installation component, a central through 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 assembled on one side of the installation component, the central through prism is assembled on the side of the installation component away from the temperature detection unit, the specific gravity detection unit is assembled on the side of the installation component close to the central through prism, the turbidity and color detection unit is assembled on one side of the installation component, and the color detection unit is assembled on the side of the installation component close to the turbidity and color detection unit.

[0010] Among them, the central through prism is a hollow and transparent part. The hollow part can be used as a urine sample circulation channel, and the whole can be used as a detection optical path medium. The outer surface shape of the cross-section of the central through prism is an inverted trapezoid or other irregular shapes, and the hollow flow channel is above the inverted trapezoid.

[0011] Among them, the installation component includes a prism mounting base, an inlet adapter block, a prism light shield block, a sealing plate and an outlet adapter block. The inlet adapter block is assembled on one side of the prism mounting base, the prism light shield block is assembled on one side of the inlet adapter block, the sealing plate is arranged on one side of the prism light shield block, and the outlet adapter block is assembled on the side of the prism light shield block away from the inlet adapter block.

[0012] Among them, the specific gravity detection unit includes a specific gravity light source and a specific gravity displacement sensor. The specific gravity light source is arranged on one side of the medium-through prism, and the specific gravity displacement sensor is assembled on one side of the medium-through prism.

[0013] Among them, there are a 90-degree turbidity scattering receiver, a turbidity color detection light source and a turbidity color detection receiver. The 90-degree turbidity scattering receiver is assembled on one side of the medium-through prism, the turbidity color detection light source is assembled on one side of the medium-through prism, and the turbidity color detection receiver is assembled on the side of the medium-through prism away from the turbidity color detection light source.

[0014] A detection device for quickly measuring the specific gravity, turbidity and color of urine according to the present invention. The urine sample is transported by an external system to the medium-through prism and a stable fluid is generated. The specific gravity detection unit emits light and enters from a special structure on one side of the medium-through prism to undergo total internal reflection, and collects and receives data. Then, the temperature detection unit detects the current temperature to give temperature compensation data. Through the established fitting function, the specific gravity value is output. The turbidity color detection unit emits light and enters from one side of the medium-through prism, passes through the sample, and after the scattering and absorption effects of the sample, the light enters the sensor at a 90° direction to the incident light and the sensor at a 180° direction to the incident light respectively, and the data in the turbidity scattering and transmission directions and the data in the color transmission direction are obtained respectively. Combining with the established turbidity fitting function, the turbidity value is output. The color detection unit emits light and enters from one side of the medium-through prism, passes through the sample, and receives the data of the light reflected by the sample to obtain the color reflection data. Combining with the color transmission data obtained by the turbidity color detection unit and the established fitting function, the color value is output. This detection device uses the integrated design of the medium-through prism, can use fewer samples for detection, and has no risk of connection sealing, improves reliability, has a high cost performance, improves product competitiveness. By integrating the detection of urine specific gravity, turbidity and color, it has a high degree of automation, saves manpower, uses the total internal reflection scheme to measure urine specific gravity, the transmission and scattering methods to detect turbidity, and the transmission and reflection methods to detect color, improves the accuracy of specific gravity, turbidity and color detection, and improves the disadvantages of traditional detection of urine specific gravity, turbidity and color, which requires multiple detection devices, takes a long time, requires more samples, has a more cumbersome operation, low sensitivity, strong subjectivity and low degree of automation. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of a detection device provided by the present invention for quickly measuring the specific gravity, turbidity, and color of urine.

[0017] Figure 2 It is a transverse cross-sectional view of a detection device provided by the present invention for quickly measuring the specific gravity, turbidity, and color of urine.

[0018] Figure 3 It is a longitudinal cross-sectional view of a detection device provided by the present invention for quickly measuring the specific gravity, turbidity, and color of urine.

[0019] In the figure: 10 - mounting assembly, 11 - prism mounting seat, 12 - inlet adapter block, 13 - prism light-shielding block, 14 - sealing plate, 15 - outlet adapter block, 20 - through 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 Embodiments

[0020] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as a limitation of the present invention.

[0021] Please refer to Figures 1 to 3 , the present invention provides a detection device for quickly measuring the specific gravity, turbidity, and color of urine, including a mounting assembly 10, a through 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 assembled on one side of the mounting assembly 10, the through prism 20 is assembled on the side of the mounting assembly 10 away from the temperature detection unit 60, the specific gravity detection unit 30 is assembled on the side of the mounting assembly 10 close to the through prism 20, the turbidity and color detection unit 40 is assembled on one side of the mounting assembly 10, and the color detection unit 50 is assembled on the side of the mounting assembly 10 close to the turbidity and color detection unit 40.

[0022] In an embodiment of the present invention, a urine sample is transported by an external system to the middle-through prism 20, and stable fluid occurs. The specific gravity detection unit 30 emits light rays to enter from a special structure on one side of the middle-through prism 20 to undergo total reflection, and collects data. Then, the temperature detection unit 60 detects the current temperature to give temperature compensation data. Through the established fitting function, the specific gravity value is output. The turbidity and color detection unit 40 emits light rays to enter from one side of the middle-through prism 20, passes through the sample, and after the scattering and absorption effects of the sample, the light rays enter the sensors in the direction perpendicular to the incident light and the sensors in the direction opposite to the incident light respectively, and the data in the turbidity scattering and transmission directions and the data in the color transmission direction are obtained respectively. Combining with the established turbidity fitting function, the turbidity value is output. The color detection unit 50 emits light rays to enter from one side of the middle-through prism 20, passes through the sample, and receives the data of the light rays reflected by the sample to obtain color reflection data. Combining with the color transmission data obtained by the turbidity and color detection unit 40 and the established fitting function, the color value is output. This detection device uses the integrated design of the middle-through prism 20, can use less samples for detection, and has no risk of connection sealing, improves reliability, has a high cost performance, and improves the product competitiveness. By integrating the detection of urine specific gravity, turbidity and color, the degree of automation is high, manpower is saved, the total reflection scheme is used to measure urine specific gravity, the transmission and scattering methods are used to detect turbidity, and the transmission and reflection methods are used to detect color, which improves the accuracy of specific gravity, turbidity and color detection, and improves the disadvantages of traditional detection of urine specific gravity, turbidity and color, such as the need for multiple detection devices, long time, large number of samples, cumbersome operation, low sensitivity, strong subjectivity and low degree of automation.

[0023] Further, the middle-through prism 20 is a hollow and transparent part. The hollow part can be used as a urine sample flow channel, and the whole can be used as a detection optical path medium. The outer surface shape of the cross-section of the middle-through prism 20 is an inverted trapezoid or other irregular shapes, and the hollow flow channel is above the inverted trapezoid.

[0024] In an embodiment of the present invention, the middle-through prism 20 is a hollow and transparent part. The hollow part can serve as a urine sample flow channel, and the whole can serve as a detection light path medium. The middle-through prism 20 has three detection positions. One detection position is the specific gravity detection position. The outer surface shape of the cross-section of the middle-through prism 20 is an inverted trapezoid or other irregular shapes. The hollow flow channel is above the inverted trapezoid, so that the light source can enter from one side of the trapezoid, pass through the hollow detection surface of the sample flow channel, and after total reflection, exit from the other side of the trapezoid. When the cross-section of the middle-through prism 20 at the specific gravity detection position is an inverted trapezoid, the area formed by the incident angle and the exit angle on both sides of the trapezoid just encompasses all the critical angles required within the range of urine specific gravity changes. When the cross-section of the middle-through prism 20 at the specific gravity detection position is an irregular shape, as long as the incident angle and the exit angle of the light can reach the total reflection critical angle. The other two detection positions are the turbidity color detection position and the color detection position. The cross-section flow channel of the middle-through prism 20 is a regular shape or an irregular shape, and the sample liquid can flow stably through the flow channel. The outer surface of the cross-section is also a regular shape or an irregular shape, ensuring that light can enter and exit without obstruction.

[0025] Preferably, at the turbidity color detection position and the color detection position, when the cross-section flow channel of the middle-through prism 20 is a regular square, the sample liquid can flow stably through the flow channel, and the four surfaces are flat, ensuring that light can enter and exit without obstruction. The position of the cross-section flow channel of the middle-through prism 20 except for the specific gravity detection position can be regular shapes such as quadrilaterals, triangles, and circles, or other irregular shapes, as long as the liquid can pass through stably.

[0026] Furthermore, the installation assembly 10 includes a prism mounting seat 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 assembled on one side of the prism mounting seat 11. The prism light-shielding block 13 is assembled on one side of the inlet adapter block 12. The sealing plate 14 is arranged on one side of the prism light-shielding block . The outlet adapter block 15 is assembled on the side of the prism light-shielding block 13 away from the inlet adapter block 12.

[0027] In an embodiment of the present invention, the middle-through prism 20 is installed on the prism mounting seat 11, connected to the inlet adapter block 12 at the inlet, and connected to the outlet adapter block 15 at the outlet. The outer layer is encapsulated by the prism light-shielding block 13 and the sealing plate 14 to form an integral 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 arranged on one side of the middle-through prism 20, and the specific gravity displacement sensor 32 is assembled on one side of the middle-through prism 20.

[0029] In an embodiment of the present invention, the specific gravity light source 31 and the specific gravity displacement sensor 32 are respectively installed on both sides of the inverted ladder of the middle-through prism 20 at a certain angle, so as 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 middle-through prism 20 loaded with the sample, and then enters the specific gravity receiver. Specifically, the specific gravity light source 31 emits light and enters from a special structure on one side of the middle-through prism 20, causing total internal reflection. The specific gravity displacement sensor 32 receives and collects data, and the temperature detection unit 60 detects the current temperature and gives temperature compensation data. Through the established fitting function, the specific gravity value is output; in this technology, total internal reflection occurs when light passes through the urine sample, and the light does not pass through the sample and will not be absorbed and attenuated by the sample, thereby improving the accuracy of the specific gravity detection of high-turbidity and dark-color samples in the existing integrated urine specific gravity, turbidity, and color detection technical solutions.

[0030] Further, for the 90-degree turbidity scattering receiver 41, the turbidity color detection light source 42, and the turbidity color detection receiver 43, the 90-degree turbidity scattering receiver 41 is assembled on one side of the middle-through prism 20, the turbidity color detection light source 42 is assembled on one side of the middle-through prism 20, and the turbidity color detection receiver 43 is assembled on the side of the middle-through prism 20 away from the turbidity color detection light source 42.

[0031] In an embodiment of the present invention, the 90-degree turbidity scattering receiver 41, the turbidity color detection light source 42, and the turbidity color detection receiver 43 are installed on three different surfaces of the middle-through prism 20, and the turbidity color detection light source 42 and the turbidity color detection receiver 43 are on two opposite surfaces of the middle-through prism 20. The 90-degree turbidity scattering receiver 41 is located on the adjacent side of the turbidity color detection light source 42 and the turbidity color detection receiver 43. The turbidity color detection light source 42 emits light and enters from one side of the middle-through prism 20, passes through the sample. The 90-degree turbidity scattering receiver 41 receives the scattered light data of the sample and obtains a turbidity scattering data. The turbidity color detection receiver 43 receives the transmitted light data of the sample and obtains a turbidity transmission data and a color transmission data. Through a turbidity scattering data and a turbidity transmission data combined with the established fitting function, the turbidity value is output. This technology uses the turbidity transmission data and scattering data obtained from one detection position, combines the two data, and at the same time configures a near-infrared monochromatic light source to avoid inaccurate turbidity transmission data of samples with high turbidity and the influence of dark-color samples on turbidity, thereby improving the accuracy of turbidity detection in the existing integrated urine specific gravity, turbidity, and color detection technical solutions.

[0032] Further, the color detection unit 50 is composed of an integrated structure of a light source and a receiver. The light source emits light that enters from one side of the middle prism 20, passes through the sample, and the receiver receives the reflected light data of the sample to obtain a color reflection data. Combining the color transmission data obtained from the turbidity color detection position with the established fitting function, a color value is output. This technology uses the color transmission data and reflection data obtained from two detection positions. The two data complement each other's advantages and make up for each other's deficiencies, avoiding inaccurate transmission data for samples with darker or lighter colors, thereby improving the color detection accuracy of the existing integrated urine specific gravity, turbidity, and color detection technical solution.

[0033] The working process of the device is as follows:

[0034] The urine sample is transported by the external system of the detection device and enters from the inlet adapter block 12, passes through the hollow flow channel of the middle prism 20, and flows out from the outlet adapter block 15. Among them, the sample passes through the specific gravity detection position of the middle prism 20, and the light emitted by the specific gravity light source 31 is totally reflected after passing through the liquid side of the middle prism 20 and is detected by the specific gravity displacement sensor 32 for the optical signal, completing data acquisition. Combining the temperature coefficient determined by the temperature detection unit 60 detecting the temperature, through the established fitting function, a specific gravity value is output.

[0035] The sample passes through the turbidity color detection position, and the turbidity color detection light source 42 emits light, which passes through the middle prism 20 and the sample, and the 90-degree turbidity scattering receiver 41 and the turbidity color detection receiver 43 detect the optical signal, completing data acquisition, obtaining a turbidity scattering data, a turbidity transmission data, and a color transmission data. Combining the turbidity scattering data and the turbidity transmission data with the established fitting function, a turbidity value of the specific gravity value is output.

[0036] The sample passes through the color detection part. After the color detection unit 50 continuously emits light and passes through the middle prism 20 and the sample, the reflected light is received by the color detection unit 50 to detect the optical signal, completing data acquisition, obtaining a color reflection data, and through the established fitting function, a color value is output.

[0037] This device can improve the disadvantages of traditional urine specific gravity, turbidity, and color detection, which require multiple detection devices, a long time, various samples, cumbersome operations, low sensitivity, strong subjectivity, and low automation. It makes up for the disadvantages of existing integrated urine specific gravity, turbidity, and color detection technology solutions, such as using a large number of samples, poor sealing, and large occupied space. When measuring urine specific gravity, there is no need to pass through the sample, and total internal reflection occurs, improving the accuracy of specific gravity detection of high-turbidity and dark-color samples in existing integrated urine specific gravity, turbidity, and color detection technology solutions. This device combines the turbidity transmission data and scattering data obtained from one detection position to avoid inaccurate transmission data for samples with high turbidity, thereby improving the turbidity detection accuracy of existing integrated urine specific gravity, turbidity, and color detection technology solutions. It uses the color transmission data and reflection data obtained from two detection positions, combines the two data, and avoids inaccurate transmission data for samples with dark or light colors, thereby improving the color detection accuracy of existing integrated urine specific gravity, turbidity, and color detection technology solutions.

[0038] The above-disclosed is only a preferred embodiment of a detection device for quickly measuring urine specific gravity, turbidity, and color of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. A detection device for quickly measuring the specific gravity, turbidity and color of urine, It is characterized in that; It includes an installation component, a middle-through prism, a specific gravity detection unit, a turbidity color detection unit, a color detection unit, and a temperature detection unit; The temperature detection unit is assembled on one side of the installation component, the middle-through prism is assembled on the side of the installation component away from the temperature detection unit, the specific gravity detection unit is assembled on the side of the installation component close to the middle-through prism, the turbidity color detection unit is assembled on one side of the installation component, and the color detection unit is assembled on the side of the installation component close to the turbidity color detection unit.

2. The detection device for rapidly measuring the specific gravity, turbidity and color of urine according to claim 1, characterized in that ； The middle-through prism is a hollow and transparent part. The hollow part can be used as a urine sample flow channel, and the whole can be used as a detection optical path medium. The outer surface shape of the cross-section of the middle-through prism is an inverted trapezoid or other irregular shapes, and the hollow flow channel is above the inverted trapezoid.

3. The detection device for rapidly measuring the specific gravity, turbidity and color of urine as described in claim 1, It is characterized in that; The installation component includes a prism mounting seat, an inlet adapter block, a prism light-shielding block, a sealing plate, and an outlet adapter block. The inlet adapter block is assembled on one side of the prism mounting seat, the prism light-shielding block is assembled on one side of the inlet adapter block, the sealing plate is arranged on one side of the prism light-shielding block, and the outlet adapter block is assembled on the side of the prism light-shielding block away from the inlet adapter block.

4. The detection device for rapidly measuring the specific gravity, turbidity and color of urine as described in claim 3, It is characterized in that; The specific gravity detection unit includes a specific gravity light source and a specific gravity displacement sensor. The specific gravity light source is arranged on one side of the middle-through prism, and the specific gravity displacement sensor is assembled on one side of the middle-through prism.

5. The detection device for rapidly measuring urine specific gravity, turbidity and color according to claim 3, wherein ； The 90-degree turbidity scattering receiver, the turbidity color detection light source, and the turbidity color detection receiver. The 90-degree turbidity scattering receiver is assembled on one side of the middle-through prism, the turbidity color detection light source is assembled on one side of the middle-through prism, and the turbidity color detection receiver is assembled on the side of the middle-through prism away from the turbidity color detection light source.

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