Optical path increasing piece, optical detection module and urinalysis instrument

Abstract

The utility model discloses an optical path increasing piece, an optical detection module and a urinalysis instrument. According to the optical path increasing device, the optical path increasing piece is provided with a flow channel cavity, and the flow channel cavity is provided with a detection part extending in the first direction, and a first circulation part and a second circulation part which are communicated with the two ends of the detection part in a bent mode; the free ends of the first circulation part and the second circulation part are open ends. The optical path increasing piece on the extension line of the detection part has light transmission, so that light can penetrate through the optical path increasing piece along the first direction and pass through the detection part. Therefore, a small number of samples can be detected, the cost is reduced, and the operation frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment, and in particular to an optical path lengthening component, an optical detection module, and a urine analyzer. Background Technology

[0002] Spectrophotometry is a method for qualitative and quantitative analysis of a substance by measuring its absorbance at a specific wavelength or within a certain wavelength range. It has advantages such as high sensitivity, ease of operation, and speed, and is the most commonly used experimental method in biochemistry.

[0003] However, in current spectrophotometric detection methods, the liquid or gas is first injected into a corresponding container, then the container is removed and placed in the detection instrument for analysis. This process generally requires obtaining a relatively large amount of liquid or gas, which is cumbersome. In some cases, the sample volume is insufficient to meet the detection requirements, or the required reagent volume is large, leading to frequent reagent replenishment. Taking urine analyzers as an example, currently, after obtaining the mixture of sample and reagent, it is injected into a container, and then the container is placed in the detector for analysis. In this process, both sample and reagent require a certain amount to meet the detection optical path requirements. In some cases, insufficient sample volume will prevent detection. Furthermore, frequent replacement of reagent bottles is necessary, increasing the frequency of operations. Utility Model Content

[0004] The purpose of this invention is to provide an optical path lengthening component, an optical detection module, and a urine analyzer, which enable the detection of small samples, increase the optical path length, reduce costs, and reduce the frequency of operation.

[0005] To solve the above-mentioned technical problems, the present invention provides an optical path lengthening component, which has a flow channel chamber, the flow channel chamber having a detection part extending along a first direction, a first flow part and a second flow part that are bent and connected to both ends of the detection part; the free ends of the first flow part and the second flow part are both open ends;

[0006] The optical path extender on the extension line of the detection unit is transparent, allowing light to pass through the optical path extender along the first direction and through the detection unit.

[0007] Compared to existing technologies, this invention provides a detection section, a first flow section, and a second flow section. The fluid to be tested flows into the detection section, and light enters through an optical path extender to the detection unit. The detection unit can detect the fluid. This structure eliminates the need for a large volume of fluid, enabling detection even with small sample sizes. Furthermore, when reagents are added to the fluid, a smaller amount of reagent is required, saving reagents and avoiding frequent reagent additions. The reagent compartment can also be miniaturized.

[0008] In one embodiment, the optical path length increaser is a light-transmitting element.

[0009] In one embodiment, the optical path lengthening component includes: a first plate and a second plate, wherein the processing surface of the first plate is provided with the detection part, the first flow part and the second flow part, and the second plate covers the processing surface of the first plate.

[0010] In one embodiment, the width of the detection section is greater than or equal to the height of the detection section.

[0011] In one embodiment, the ratio of the width to the height of the detection section is in the range of 1 to 2; the flow channel chamber is a U-shaped cavity.

[0012] An embodiment of this utility model also provides an optical detection module, comprising:

[0013] Optical path extender as described in any of the above;

[0014] A detection unit is disposed on an extension line of the detection section; and

[0015] A light source is disposed on the extension line of the detection unit, and the optical path lengthening member is disposed between the detection unit and the light source.

[0016] In one embodiment, the optical detection module further includes a circuit board, which is electrically connected to the detection unit and the light source.

[0017] In one embodiment, the circuit board has a first circuit board portion and a second circuit board portion respectively disposed on both sides of the optical path lengthening member, the first circuit board portion and the second circuit board portion being electrically connected, the detection unit being disposed on the first circuit board portion, and the light source being disposed on the second circuit board portion.

[0018] The present invention also provides a urine analyzer, including an optical detection module as described in any of the above embodiments, wherein one of the free ends of the first flow section and the second flow section is an inlet connected to the inlet pipe of the urine analyzer, and the other is an outlet connected to the outlet pipe of the urine analyzer.

[0019] In one embodiment, the optical detection module is a fixed component of a urine analyzer. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the optical path lengthening component according to one embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of an embodiment of the present invention showing that the optical path length increaser is disposed between the detection unit and the light source;

[0022] Figure 3 This is a structural schematic diagram of an optical detection module according to an embodiment of the present invention, wherein the optical path extending component is in cross-sectional view;

[0023] Reference numerals: 100, optical path length increaser; 1, flow channel chamber; 11, detection section; 12, first flow section; 13, second flow section; 2, first plate; 3, second plate; 200, optical detection module; 4, detection unit; 5, light source; 61, first circuit board; 62, second circuit board. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0025] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0026] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are merely illustrative of the essential spirit of the technical solution of this utility model.

[0027] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0028] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0029] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0030] The embodiments of this utility model are described below with reference to the accompanying drawings.

[0031] The urinalysis machine can be used on a toilet seat or independently to obtain urine samples. It is suitable for routine urinalysis, such as 14 ascorbic acid tests, including vitamin C (VC), white blood cells (WBC), urobilinogen (URO), bilirubin (BIL), occult blood (BLD), nitrite (NIT), pH, protein (PRO), urine specific gravity (SG), urine ketones (KET), urine glucose (GLU), urine creatinine (CR), urine calcium (CA), and a comprehensive value of urine uric acid (based on the CKD-EPI algorithm) for microalbumin (MA), urinary uric acid, UACR (urinary microalbumin / creatinine ratio), UPCR (urinary protein / creatinine ratio), and urinary uric acid (UACR).

[0032] like Figure 3 As shown, the urine analyzer has an optical detection module 200, which includes an optical path extender 100, a detection unit 4, and a light source 5. After the sample and reagent are mixed, they are introduced into the optical path extender 100. The detection unit 4, i.e., a photoelectric sensor, detects the fluid to be tested in the optical path extender 100. After detection, the fluid to be tested flows out of the optical path extender 100. In existing urine analyzers, the mixed fluid to be tested is introduced into a container, the container is removed, and then the analyzer is placed in the container for further testing, requiring a large quantity of the fluid to be tested.

[0033] This embodiment uses a urine analyzer as an example. The optical path length increaser 100 and the optical detection module 200 can also be used in other instruments.

[0034] The following section details the optical path extender 100:

[0035] One embodiment of this utility model provides an optical path lengthening component 100. For example... Figure 1 and Figure 2 As shown, the optical path extender 100 has a flow channel chamber 1, which has a detection section 11 extending along a first direction, a first flow section 12 and a second flow section 13 that are bent and connected to both ends of the detection section 11. The free ends of both the first flow section 12 and the second flow section 13 penetrate the optical path extender 100 and are open ends. The optical path extender 100 on the extension line of the detection section 11 is translucent, allowing light to pass through the optical path extender 100 along the first direction and through the detection section 11. The first direction and the extension line of the detection section 11 are... Figure 2 In the X direction.

[0036] The system comprises a detection section 11, a first flow section 12, and a second flow section 13. The fluid to be tested flows into the detection section 11, and light enters the optical path extender 100, passes through the detection section 11, and reaches the detection unit 4. The detection unit 4 can detect the fluid to be tested. This structure eliminates the need for a large volume of fluid to be tested, enabling detection even with small sample volumes. Furthermore, when reagents are added to the fluid to be tested, a smaller amount of reagent is required, saving reagents and avoiding frequent reagent additions. The reagent compartment can also be miniaturized. The detection section 11, the first flow section 12, and the second flow section 13 increase the liquid flow channel and optical path. Existing detection devices have shorter flow channels and optical paths when detecting the same sample volume. For micro-sample volumes, existing detection devices cannot achieve detection. However, the detection section 11, the first flow section 12, and the second flow section 13 in this embodiment, with their coordinated structure, increase the flow channel and optical path.

[0037] Furthermore, such as Figure 1 and Figure 2 As shown, the optical path extender 100 is a light-transmitting component, which can be made of acrylic. That is, the entire optical path extender 100 is a light-transmitting component, but it can also be partially light-transmitting, that is, light-transmitting in the extension direction of the detection unit 11.

[0038] In addition, such as Figure 1 and Figure 2 As shown, the optical path extender 100 includes a first plate 2 and a second plate 3. The first plate 2 has a detection section 11, a first flow section 12, and a second flow section 13 on its machined surface. The second plate 3 covers the machined surface of the first plate 2. The first plate 2 and the second plate 3 can be bonded together with a waterproof sealant. The optical path extender 100 can also be a single piece with a flow channel chamber 1.

[0039] Furthermore, such as Figure 1 and Figure 2 As shown, the width of the detection section 11 is greater than or equal to its height, allowing the fluid to be detected to completely fill the detection section 11 for easy detection. The width direction of the detection section 11 is... Figure 2 In the Y direction, the height direction of the detection unit 11 is... Figure 2 In the Z-direction. Optionally, the ratio of the width to the height of the detection section is in the range of 1 to 2.

[0040] Priority, such as Figure 1 and Figure 2 As shown, the flow channel chamber 1 is a U-shaped cavity.

[0041] Another embodiment of this utility model relates to an optical detection module 200. For example... Figure 3As shown, the optical detection module 200 includes: an optical path extender 100, a detection unit 4, and a light source 5 as described in the above embodiment. The detection unit 4 is disposed on the extension line of the detection section 11. The light source 5 is disposed on the extension line of the detection section 11, and the optical path extender 100 is disposed between the detection unit 4 and the light source 5. The light source 5 may be an LED lamp, and the detection unit 4 may be a photoelectric sensor.

[0042] In addition, such as Figure 3 As shown, the optical detection module 200 also includes a circuit board, which is electrically connected to the detection unit 4 and the light source 5.

[0043] Optionally, such as Figure 3 As shown, the circuit board has a first circuit board portion 61 and a second circuit board portion 62 respectively disposed on both sides of the optical path lengthening member 100. The first circuit board portion 61 and the second circuit board portion 62 are electrically connected and connected via a data cable. The detection unit 4 is disposed on the first circuit board portion 61, and the light source 5 is disposed on the second circuit board portion 62.

[0044] Since the above embodiments correspond to this embodiment, this embodiment can be implemented in conjunction with the above embodiments. The relevant technical details mentioned in the above embodiments remain valid in this embodiment, and the technical effects achievable in the above embodiments can also be achieved in this embodiment. To reduce repetition, they will not be repeated here. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the above embodiments.

[0045] Another embodiment of this utility model relates to a urine analyzer, including the optical detection module 200 as described in the above embodiment, one of the free ends of the first flow section 12 and the second flow section 13 being an inlet connected to the inlet pipe of the urine analyzer, and the other being an outlet connected to the outlet pipe of the urine analyzer.

[0046] In addition, the optical detection module 200 is a fixed component of the urine analyzer, forming an integral unit with the fixed urine analyzer. That is, after installation, the optical detection module 200 is positioned within the urine analyzer. During each test, the test liquid enters through the inlet to fill the detection section 11, the light source 5 is turned on, and the liquid passes through the detection section 11 and the optical path extender 100 to the detection unit 4. The tested liquid is then discharged from the outlet, enabling real-time monitoring without needing to remove the container of the test liquid before sending it into the analyzer.

[0047] Since the above embodiments correspond to this embodiment, this embodiment can be implemented in conjunction with the above embodiments. The relevant technical details mentioned in the above embodiments remain valid in this embodiment, and the technical effects achievable in the above embodiments can also be achieved in this embodiment. To reduce repetition, they will not be repeated here. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the above embodiments.

[0048] The implementation details of this embodiment are described below. The following content is only for the convenience of understanding the implementation details and is not necessary for implementing this solution.

[0049] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0050] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0051] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. An optical path length increasing member characterized by comprising: The light path increasing piece has a flow channel chamber with a detection part extending in a first direction, a first flow-through part and a second flow-through part in communication with both ends of the detection part; the free ends of the first flow-through part and the second flow-through part are open ends. The light path increasing piece on the extension line of the detection part is light-transmissive, allowing light to pass through the light path increasing piece in the first direction and through the detection part.

2. The optical path length increasing member according to claim 1, characterized by The light path increasing piece is a light-transmissive piece.

3. The optical path length increasing element according to claim 1, characterized in that The light path increasing piece comprises a first plate and a second plate, the processing surface of the first plate is provided with the detection part, the first flow-through part and the second flow-through part, and the second plate covers the processing surface of the first plate.

4. The optical path length increasing element according to claim 1, characterized in that The width of the detection part is greater than or equal to the height of the detection part.

5. The optical path length increasing element according to claim 4, characterized in that The ratio of the width of the detection part to the height of the detection part is in the range of 1-2; the flow channel chamber is a U-shaped chamber.

6. An optical detection module, characterized by The light path increasing piece comprises: The light path increasing piece according to any one of claims 1-5; a detection unit arranged on the extension line of the detection part; and a light source arranged on the extension line of the detection part, and the light path increasing piece is arranged between the detection unit and the light source.

7. The optical detection module of claim 6, wherein, The optical detection module further comprises a circuit board electrically connected with the detection unit and the light source.

8. The optical detection module of claim 7, wherein, The circuit board has a first circuit board part and a second circuit board part arranged on both sides of the light path increasing piece respectively, the first circuit board part and the second circuit board part are electrically connected, the detection unit is arranged on the first circuit board part, and the light source is arranged on the second circuit board part.

9. A urine test meter, characterized by, The optical detection module comprises:

10. The urine test meter of claim 9, wherein, The optical detection module according to any one of claims 6-8, one of the free ends of the first flow-through part and the free ends of the second flow-through part is a liquid inlet connected with a liquid inlet pipe of a urine test instrument, and the other is a liquid outlet connected with a liquid outlet pipe of the urine test instrument. The optical detection module is a fixed component of a urine test instrument.

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