Light path cassette

Abstract

The utility model relates to the technical field of optical detection, and provides a light path cassette, the light path cassette comprises a seat body, a camera module, a lamp assembly and a detection reagent strip, the seat body is provided with a cassette space and a slot, the seat body is provided with a detection port communicated with the cassette space and the slot, and a shooting hole and a lamp hole communicated with the cassette space; the camera module is arranged on the seat body and covers the shooting hole so as to shoot towards the inside of the cassette space; the lamp assembly is arranged on the base body and covers the lamp hole in a sealing mode so as to irradiate light towards the interior of the cassette space. The detection reagent strip is inserted into the slot and covers the detection opening, the detection reagent strip is provided with a detection window, the detection window is arranged corresponding to the detection opening, and the camera module shoots towards the detection window. The light path cassette forms a closed cassette space, so that the influence of environmental stray light is avoided, and meanwhile, the camera module and the lamp assembly are prevented from being fixed on different accessories respectively, so that accumulated errors such as parts and assembly tolerance are reduced, the light path transmission is more accurate, and the detection result is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of optical detection technology, and in particular to an optical path dark box. Background Technology

[0002] Point-of-Care (POCT), also known as point-of-care testing, is the fastest-growing area in the in vitro diagnostics industry. Widely used blood glucose meters are the most successful POCT product, accounting for over 60% of the entire POCT market. Currently, the two most representative portable POCT technologies on the market are colloidal gold (or fluorescence) immunochromatography and fluorescence immunocapillary immunoassay. Currently, testing devices used to detect the presence of analytes in samples are widely used in hospitals and homes. These rapid diagnostic testing devices contain one or more test strips, such as for early pregnancy testing. These rapid diagnostic testing devices are very convenient, providing results quickly on the test strip.

[0003] As testing requirements gradually increase, while speed and ease of operation are important, the requirements for accuracy and precision are also increasing. As a result, POCT products based on immunofluorescence, chemiluminescence, biochips, and microfluidic technologies are gradually being applied in clinical practice, enabling rapid quantitative detection and leading to rapid development.

[0004] For immunofluorescence and chemiluminescence lamp-based point-of-care testing (POCT) technologies, the design of the optical path becomes paramount, as it can significantly impact test results and even lead to medical accidents. In these technologies, the testing equipment is susceptible to external stray light, which can reduce the accuracy of the results. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes an optical path dark box designed to avoid the influence of stray light, thereby improving the accuracy of detection results.

[0006] The optical path dark box according to an embodiment of the present utility model includes:

[0007] The base has a dark box space and a slot, and the base has a detection port that connects the dark box space and the slot, as well as a shooting hole and a lamp hole that connect the dark box space.

[0008] A camera module is mounted on the base and covers the shooting hole to shoot into the dark box space;

[0009] A lamp assembly is disposed on the base and covers the lamp hole to irradiate light into the dark box space;

[0010] A test strip is inserted into the slot and covers the test port. The test strip has a test window, which is set corresponding to the test port. The camera module is oriented towards the test window to take pictures.

[0011] According to the optical path dark box of this utility model embodiment, by fixing core components such as the camera module and lamp assembly onto the base, and inserting the test strip into the slot of the base, the camera module covers the imaging hole, the lamp assembly covers the lamp hole, and the test strip covers the detection port, thereby forming a sealed dark box space to avoid the influence of ambient stray light. At the same time, since all core components are fixed to the base, it avoids fixing the camera module and lamp assembly to different accessories, thereby reducing the cumulative error of parts and assembly tolerances, making the optical path transmission more precise and the detection results more accurate.

[0012] According to one embodiment of the present invention, the slot and the detection port are located below the dark box space.

[0013] According to one embodiment of the present invention, the detection port is flared in the direction away from the slot.

[0014] According to one embodiment of the present invention, the imaging hole is located at the top of the base and is coaxially arranged with the detection port.

[0015] According to one embodiment of the present invention, the optical path dark box includes a fixing member, the fixing member is fixed in the shooting hole, the camera module is provided with a photosensitive module, and a portion of the photosensitive module passes through the fixing member.

[0016] According to one embodiment of the present invention, the lamp holes are provided on both sides of the base, and the lamp assembly includes at least two side lamp plates, each of which covers one of the lamp holes.

[0017] According to one embodiment of the present invention, the side light panel includes:

[0018] A plate body, which is connected to the base body and covers the lamp hole;

[0019] A light-emitting module is disposed on the plate and shines light into the lamp hole;

[0020] An interface, located on the board, is used for connecting an external power supply.

[0021] According to one embodiment of the present invention, each of the side light panels includes at least two light-emitting modules, and the at least two light-emitting modules are spaced apart on one side of the panel.

[0022] According to one embodiment of the present invention, the side of the plate with the light-emitting module is positioned facing the detection port.

[0023] According to one embodiment of the present invention, the seat body includes:

[0024] The first bracket is provided with a placement groove that communicates with the side wall;

[0025] A second bracket is provided on the placement groove. The first bracket and the second bracket are connected and enclosed to form the slot. The second bracket has the detection port.

[0026] The dark box is connected to the second bracket and has the shooting hole and the light hole.

[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies 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.

[0029] Figure 1 This is a schematic diagram of the structure of the optical path dark box provided in this embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the dark box provided in this embodiment of the utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the camera module provided in this embodiment of the utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the lamp assembly provided in this embodiment of the utility model;

[0033] Figure 5 This is a schematic diagram of the structure of the test strip provided in this embodiment of the utility model;

[0034] Figure 6 This is a cross-sectional schematic diagram of the optical path dark box provided in this embodiment of the utility model.

[0035] Figure label:

[0036] 10. Base; 11. Imaging hole; 12. Detection port;

[0037] 20. Second support;

[0038] 30. First support;

[0039] 40. Junction box; 401. Fastener; 4031. Lamp hole;

[0040] 41. Camera module; 411. Photosensitive module; 42. Lamp assembly; 421. Light-emitting module; 423. Interface; 425. Board body;

[0041] 50. Test strip; 51. Test window; Detailed Implementation

[0042] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0043] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0045] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Please refer to the reference. Figures 1 to 6 According to an embodiment of the present invention, the optical path cassette includes a base 10, a camera module 41, a lamp assembly 42, and a test strip 50. The base 10 has a cassette 40 space and a slot. The base 10 has a detection port 12 connecting the cassette 40 space and the slot, and an imaging hole 11 and a lamp hole 4031 connecting the cassette 40 space. The camera module 41 is disposed on the base 10 and covers the imaging hole 11 to capture images into the cassette 40 space. The lamp assembly 42 is disposed on the base 10 and covers the lamp hole 4031 to illuminate the cassette 40 space. The test strip 50 is inserted into the slot and covers the detection port 12. The test strip 50 has a detection window 51, which corresponds to the detection port 12. The camera module 41 captures images into the detection window 51.

[0048] According to the optical path cassette of this utility model embodiment, by fixing core components such as the camera module 41 and the lamp assembly 42 onto the base 10, and inserting the test strip 50 into the slot of the base 10, the camera module 41 covers the imaging hole 11, the lamp assembly 42 covers the lamp hole 4031, and the test strip 50 covers the detection port 12, thereby forming a sealed cassette 40 space to avoid the influence of ambient stray light. At the same time, since all core components are fixed on the base 10, it avoids the camera module 41 and the lamp assembly 42 being fixed to different accessories, thereby reducing the cumulative errors of parts and assembly tolerances, making the optical path transmission more precise and the detection results more accurate.

[0049] Understandably, existing technologies for optical path cassettes primarily focus on their design and application to ensure effective control and optimization of the light transmission path. The problem this invention aims to solve is the inability to achieve accurate measurements in POCT fields such as fluorescence or chemiluminescence due to optical path design issues or ambient light factors, thereby improving the safety and practical effectiveness of the detection.

[0050] like Figure 6 As shown, according to one embodiment of the present invention, the slot and the detection port 12 are located below the space of the cassette 40. It is understood that the test strip 50 is inserted into the slot from the side of the base 10. Since the slot is located below the space of the cassette 40, the detection window 51 is located on the upper surface of the test strip 50. Under the action of gravity, the test strip 50 can be confined within the slot, reducing the shaking of the test strip 50.

[0051] According to one embodiment of the present invention, the detection port 12 is flared outwards in the direction away from the slot. That is, the detection port 12 gradually widens in the direction away from the slot, so that more light can be irradiated onto the detection window 51, making the light path transmission more precise and the detection result more accurate.

[0052] According to one embodiment of the present invention, the imaging hole 11 is located at the top of the base 10 and is coaxially arranged with the detection port 12. It can be understood that the camera module 41 is mounted on the top of the base 10, and when shooting from above, the photosensitive module 411 of the camera module 41 extends into the imaging hole 11. Light reflected from the detection window 51 can illuminate the photosensitive module 411 to complete the detection.

[0053] Please refer to the reference. Figure 2 and Figure 6 According to one embodiment of this utility model, the optical path cassette includes a fixing member 401, which is fixed inside the shooting hole 11. The camera module 41 is provided with a photosensitive module 411, a portion of which passes through the fixing member 401. Optionally, the fixing member 401 has a ring-shaped structure to accommodate the photosensitive module 411, thereby improving the installation stability of the photosensitive module 411. It is understood that during installation, the fixing member 401 can be fitted onto the photosensitive module 411 first, and then the fixing member 401 and the camera module 41 can be installed on the base 10. The fixing member 401 fixes the photosensitive module 411 to prevent the photosensitive module 411 from bumping and abrading against the inner wall of the shooting hole 11.

[0054] Please refer to the reference. Figure 1 and Figure 2 According to one embodiment of this utility model, lamp holes 4031 are provided on both sides of the base 10, and the lamp assembly 42 includes two side lamp plates, each side lamp plate covering one lamp hole 4031. It is understood that both side lamp plates provide light sources to ensure that the detection window 51 receives more light, thereby ensuring the accuracy of the detection results. That is, illuminating the detection window 51 from both sides improves the uniformity of illumination at the detection window 51 and avoids uneven lighting affecting the detection results. In other embodiments, the lamp assembly 42 may also include multiple side lamp plates, which can be specifically set according to the number of lamp holes 4031 and actual conditions, and are not limited here.

[0055] like Figure 4 As shown, according to one embodiment of the present invention, the side light panel includes a plate 425, a light-emitting module 421, and an interface 423. The plate 425 is connected to the base 10 and covers the lamp hole 4031. The light-emitting module 421 is disposed on the plate 425 and illuminates light into the lamp hole 4031. The interface 423 is disposed on the plate 425 and is used for connecting an external power supply.

[0056] Understandably, the board 425 is attached to the outer wall of the base 10 to cover the lamp hole 4031 and prevent stray light from entering the dark box 40 space. The size of the light-emitting module 421 should be smaller than the size of the lamp hole 4031 so that the light-emitting module 421 can extend into the lamp hole 4031. For example, an interface 423 is provided at one end of the board 425 for connecting an external power source to power the light-emitting module 421. The board 425 can be a circuit board.

[0057] Please refer to the reference. Figure 2 and Figure 4 According to one embodiment of this utility model, each side light panel includes two light-emitting modules 421, which are spaced apart on one side of the panel 425. It is understood that the two light-emitting modules 421 can share a single lamp hole 4031. To improve the airtightness of the dark box 40 space, each light-emitting module 421 can also be provided with a corresponding lamp hole 4031, that is, two lamp holes 4031 are provided on both sides of the base 10, and the two lamp holes 4031 on the same side can respectively accommodate two light-emitting modules 421. In this way, the detection window 51 receives more light, thereby ensuring the accuracy of the detection results. In other embodiments, to ensure sufficient light, each side light panel may also include multiple light-emitting modules 421, which is not limited here.

[0058] According to one embodiment of the present invention, the side of the plate 425 with the light-emitting module 421 is positioned facing the detection port 12. It can be understood that by tilting the plate 425 to face the detection port 12, the light-emitting module 421 can directly illuminate the detection port 12, improving the light intake effect of the detection window 51.

[0059] Please refer to the reference. Figure 1 and Figure 6 According to one embodiment of the present invention, the base 10 includes a first bracket 30, a second bracket 20 and a dark box 40. The first bracket 30 is provided with a placement groove communicating with the side wall; the second bracket 20 covers the placement groove, and the first bracket 30 and the second bracket 20 are connected to form a slot. The second bracket 20 has a detection port 12; the dark box 40 is connected to the second bracket 20, and the dark box 40 has a shooting hole 11 and a lamp hole 4031.

[0060] For example, the first bracket 30 can serve as a base frame to support the second bracket 20 and the cassette 40. A placement groove is formed on the upper surface of the first bracket 30, connecting to the side wall of the first bracket 30, allowing the test strip 50 to be inserted from the side wall. The second bracket 20 is mounted on the first bracket 30, forming a slot with the first bracket 30 and the second bracket 20, allowing the test strip 50 to be inserted laterally into the slot. Simultaneously, a detection port 12 is formed on the second bracket 20. The cassette 40 is mounted on the second bracket 20 and positioned corresponding to the detection port 12. Thus, the cassette 40 and the second bracket 20 are connected and enclosed to form a space within the cassette 40, and the detection port 12 connects the space within the cassette 40 and the slot. In addition, the dark box 40 is provided with a shooting hole 11 and a lamp hole 4031. That is to say, the camera module 41 and the lamp assembly 42 are both installed on the dark box 40, which avoids the cumulative error caused by the two being installed in different accessories, such as parts and assembly tolerances, making the optical path transmission more precise and the test results more accurate.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. An optical path dark box, characterized in that, include: The base has a dark box space and a slot, and the base has a detection port that connects the dark box space and the slot, as well as a shooting hole and a lamp hole that connect the dark box space. A camera module is mounted on the base and covers the shooting hole to shoot into the dark box space; A lamp assembly is disposed on the base and covers the lamp hole to irradiate light into the dark box space; A test strip is inserted into the slot and covers the test port. The test strip has a test window, which is set corresponding to the test port. The camera module is oriented towards the test window to take pictures.

2. The optical path dark box according to claim 1, characterized in that, The slot and the detection port are located below the dark box space.

3. The optical path dark box according to claim 2, characterized in that, The detection port is flared out in the direction away from the slot.

4. The optical path dark box according to claim 2, characterized in that, The imaging hole is located at the top of the base and is coaxially arranged with the detection port.

5. The optical path dark box according to claim 1, characterized in that, The optical path cassette includes a fixing member, which is fixed inside the shooting hole. The camera module is provided with a photosensitive module, and part of the photosensitive module passes through the fixing member.

6. The optical path dark box according to claim 1, characterized in that, The lamp holes are provided on both sides of the base, and the lamp assembly includes at least two side lamp plates, each of which covers one of the lamp holes.

7. The optical path cassette according to claim 6, characterized in that, The side light panel includes: A plate body, which is connected to the base body and covers the lamp hole; A light-emitting module is disposed on the plate and shines light into the lamp hole; An interface, located on the board, is used for connecting an external power supply.

8. The optical path cassette according to claim 7, characterized in that, Each of the side light panels includes at least two light-emitting modules, which are spaced apart on one side of the panel.

9. The optical path cassette according to claim 7, characterized in that, The side of the plate with the light-emitting module is positioned facing the detection port.

10. The optical path cassette according to any one of claims 1 to 9, characterized in that, The seat body includes: The first bracket is provided with a placement groove that communicates with the side wall; A second bracket is provided on the placement groove. The first bracket and the second bracket are connected and enclosed to form the slot. The second bracket has the detection port. The dark box is connected to the second bracket and has the shooting hole and the light hole.

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