Fluorescence immunoassay analyzer

Abstract

The utility model provides a fluorescence immunoassay analyzer, which is used for detecting a reagent card and comprises an analyzer body and a positioning block, the analyzer body is provided with an inlet / outlet and an accommodating groove communicated with the inlet / outlet; the positioning block is arranged in the accommodating groove in a penetrating manner and is detachably connected to the analyzer body; the positioning block is provided with a clamping groove and an elastic buckle, and the reagent card can move along the clamping groove and is clamped with the elastic buckle. According to the utility model, the positioning block provided with the elastic buckle is detachably connected to the analyzer body, so that when the elastic buckle is subjected to structural fatigue or damage due to frequent insertion and extraction of the reagent card, the analyzer body does not need to be disassembled, and only the positioning block needs to be taken out of the accommodating groove for replacement, thereby simplifying the maintenance process, shortening the maintenance time and improving the maintenance efficiency. The risk of secondary damage to precise detection elements in the analyzer in the disassembling process is also avoided, the maintenance efficiency of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of reagent card detection technology, and more specifically to a fluorescence immunoassay analyzer. Background Technology

[0002] In biomedical research, drug development, and testing, fluorescence immunoassay analyzers are indispensable detection tools. They enable non-invasive detection of biomolecules, providing rapid results. The procedure is as follows: first, biological reagents are added to a reagent card; then, the reagent-containing end of the card is inserted into the analyzer. The analyzer's elastic locking mechanism positions the card, and the analyzer then detects the molecules within the biological reagent, ultimately producing the result.

[0003] In routine testing, the frequent insertion and removal of reagent cards puts continuous stress on the elastic locking components, making them highly susceptible to elastic failure or damage due to structural fatigue. Since this structure is integrated with the analyzer body, once damaged, maintenance personnel need to disassemble the analyzer for replacement. This is not only cumbersome and time-consuming, but may also cause secondary damage to the precision detection components inside the analyzer during disassembly, thus affecting the normal operation of the analyzer. Utility Model Content

[0004] The purpose of this invention is to overcome the defects of the prior art and provide a fluorescence immunoassay analyzer to solve the technical problem that the elastic snap-fit ​​component of the existing analyzer is integrated with the analyzer body, which makes it easy to be damaged and difficult to maintain.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a fluorescence immunoassay analyzer for detecting reagent cards. The fluorescence immunoassay analyzer includes: an analyzer body and a positioning block; the analyzer body has an inlet and an outlet and a receiving groove communicating with the inlet and outlet; the positioning block passes through the receiving groove and is detachably connected to the analyzer body; the positioning block has a slot and an elastic buckle, and the reagent card can move along the slot and engage with the elastic buckle.

[0007] The positioning block has an opening corresponding to the inlet and outlet, and the opening communicates with the slot; the opening side edge of the positioning block has a connecting part, and the connecting part is detachably connected to the analyzer body.

[0008] The analyzer body is provided with a first screw hole, which is distributed on the outer periphery of the receiving groove; the number of the first screw holes corresponds one-to-one with the number of the connecting parts; the connecting parts are provided with a second screw hole, and a first screw connector passes through the second screw hole, which is screwed into the first screw hole and the second screw hole.

[0009] The receiving groove has several limiting holes on the inner sidewall opposite to the inlet and outlet, and the positioning block has several limiting posts on the sidewall away from the opening, with the limiting posts inserted into the limiting holes.

[0010] The inner wall of the card slot is provided with a first through hole and a second through hole. The first through hole is located at the end of the card slot away from the inlet and outlet, and the second through hole is located between the inlet and outlet and the first through hole. The positioning block is provided with a sliding groove. The first through hole and the second through hole are respectively connected to the two ends of the sliding groove. The elastic buckle is slidably connected to the sliding groove. One end of the elastic buckle passes through the first through hole or the second through hole and enters the card slot to contact the reagent card.

[0011] The elastic buckle includes a snap-fit ​​component; the snap-fit ​​component is slidably connected to the slide groove, and the two ends of the snap-fit ​​component are respectively provided with an abutment portion and a snap-fit ​​portion, the abutment portion and the snap-fit ​​portion passing through the first through hole and the second through hole respectively; the abutment portion enters the slot, and the reagent card moves along the slot to press the abutment portion, causing the abutment portion to move along the direction of the first through hole, so that the snap-fit ​​portion enters the slot and snaps into the reagent card.

[0012] The slide groove is arc-shaped, and the snap-fit ​​component is arc-shaped.

[0013] The slide groove is provided with a guide groove, a first limiting groove and a second limiting groove. The first limiting groove and the second limiting groove extend from both ends of the guide groove to the first through hole and the second through hole, respectively. The width of the first limiting groove and the second limiting groove is greater than the width of the guide groove.

[0014] The snap-fit ​​component is provided with a first limiting part and a second limiting part. The first limiting part and the second limiting part are disposed between the abutting part and the snap-fit ​​part, and the first limiting part is disposed at one end near the abutting part, and the second limiting part is disposed at one end near the snap-fit ​​part; the first limiting part passes through the first limiting groove, and the second limiting part passes through the second limiting groove.

[0015] The elastic buckle further includes: a first elastic element and a second elastic element; the first elastic element is disposed between the first limiting portion and the end of the first limiting groove away from the first through hole; the second elastic element is disposed between the second limiting portion and the end of the second limiting groove near the second through hole; the first elastic element and the second elastic element are respectively disposed in the first limiting groove and the second limiting groove; the first elastic element is used to drive the first limiting portion closer to the first through hole, so that the abutting portion slides to the buckle groove; the second elastic element is used to drive the second limiting portion closer to the guide groove.

[0016] The advantages of this invention compared to existing technologies are as follows: By detachably connecting the positioning block with an elastic buckle to the analyzer body, when the elastic buckle becomes fatigued or damaged due to frequent insertion and removal of reagent cards, it is not necessary to disassemble the analyzer body. The positioning block can simply be removed from the receiving slot for replacement. This simplifies the maintenance process, shortens maintenance time, and avoids the risk of secondary damage to the precision detection components inside the analyzer during disassembly, thus improving the maintenance efficiency and service life of the equipment. Simultaneously, the reagent card moves along the slot of the positioning block and engages with the elastic buckle, enhancing the positioning effect of the reagent card, ensuring the stability of the reagent card during detection, and improving the accuracy of the detection results.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of this utility model more obvious and understandable, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0018] Figure 1 A schematic diagram of the analyzer body of a fluorescence immunoassay analyzer provided by this utility model;

[0019] Figure 2 A schematic diagram of the positioning block and reagent card of a fluorescence immunoassay analyzer provided by this utility model;

[0020] Figure 3 A front view schematic diagram of the positioning block of a fluorescence immunoassay analyzer provided by this utility model;

[0021] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure at point AA.

[0022] Figure label:

[0023] 1. Analyzer body; 11. Inlet / outlet; 12. Receiving groove; 13. First screw hole; 14. Mounting groove; 2. Positioning block; 21. Slot; 211. First through hole; 212. Second through hole; 22. Elastic buckle; 221. Snap-fit ​​part; 2211. Abutment part; 2212. Snap-fit ​​part; 2213. First limiting part; 2214. Second limiting part; 222. First elastic element; 223. Second elastic element; 23. Opening; 24. Connecting part; 241. Second screw hole; 25. Limiting post; 26. Slide groove; 261. Guide groove; 262. First limiting groove; 263. Second limiting groove; 3. Cover plate; 4. Reagent card; 41. Grip groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0026] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] See Figure 1-4 As shown, this embodiment discloses a fluorescence immunoassay analyzer for detecting reagent card 4, more specifically, as... Figure 2As shown, it is applied to a reagent card 4 with a gripping groove 41. The fluorescence immunoassay analyzer of this embodiment includes: an analyzer body 1 and a positioning block 2; the analyzer body 1 is provided with an inlet and outlet 11 and a receiving groove 12 communicating with the inlet and outlet 11; the positioning block 2 passes through the receiving groove 12 and is detachably connected to the analyzer body 1; the positioning block 2 is provided with a slot 21 and an elastic buckle 22, and the reagent card 4 can move along the slot 21 and engage with the elastic buckle 22.

[0029] In practice, the positioning block 2 is inserted into the receiving groove 12 through the inlet / outlet 11, ensuring a secure connection between the positioning block 2 and the analyzer body 1. After starting the test, the reagent card 4 is inserted into the card slot 21 so that the elastic buckle 22 engages with the reagent card 4. More specifically, the elastic buckle 22 engages with the holding groove 41 of the reagent card 4 to position the reagent card 4, and then the test can begin. After the test is completed, the reagent card 4 is removed from the card slot 21, and the test is awaited for the next reagent card 4. If the performance of the elastic buckle 22 deteriorates after long-term use and it can no longer stably restrict the movement of the reagent card 4, the positioning block 2 can be removed from the analyzer body 1 to replace it with a new positioning block 2 or to repair the elastic buckle 22.

[0030] In this embodiment of the fluorescence immunoassay analyzer, the positioning block 2 with elastic buckle 22 is detachably connected to the analyzer body 1. When the elastic buckle 22 becomes structurally fatigued or damaged due to frequent insertion and removal of reagent card 4, it is not necessary to disassemble the analyzer body 1. The positioning block 2 can simply be removed from the receiving groove 12 for replacement. This not only simplifies the maintenance process and shortens the maintenance time, but also avoids the risk of secondary damage to the precision detection components inside the analyzer during disassembly, thereby improving the maintenance efficiency and service life of the equipment. At the same time, the reagent card 4 moves along the slot 21 of the positioning block 2 and engages with the elastic buckle 22, which can enhance the positioning effect of the reagent card 4, ensure the stability of the reagent card 4 during the detection process, and improve the accuracy of the detection results.

[0031] Specifically, the positioning block 2 has an opening 23 corresponding to the inlet / outlet 11, and the opening 23 communicates with the slot 21; the side edge of the opening 23 of the positioning block 2 has a connecting part 24, which is detachably connected to the analyzer body 1. When the reagent card 4 enters from the inlet / outlet 11, it will enter the slot 21 through the opening 23 on the positioning block 2 corresponding to the inlet / outlet 11. The communication design between the opening 23 and the slot 21 provides a smooth movement path for the reagent card 4, while the connecting part 24 detachably connects the positioning block 2 to the analyzer body 1, so that the positioning block 2 can be stably installed in the receiving slot 12. This not only ensures the movement stability of the reagent card 4 during the detection process, but also facilitates disassembly and replacement when the positioning block 2 is worn or damaged, thus ensuring the overall normal operation efficiency of the fluorescence immunoassay analyzer.

[0032] Specifically, the analyzer body 1 is provided with first screw holes 13, which are distributed around the outer periphery of the receiving groove 12. The number of first screw holes 13 corresponds one-to-one with the number of connecting parts 24. The connecting part 24 is provided with second screw holes 241, through which a first screw connector (not shown) passes. The first screw connector is screwed into the first screw hole 13 and the second screw hole 241. Preferably, the analyzer body 1 is provided with a mounting groove 14 corresponding to the connecting part 24, and the first screw holes 13 are provided in the groove wall of the mounting groove 14. When the positioning block 2 is inserted into the receiving groove 12, the connecting part 24 is embedded in the mounting groove 14. The mounting groove 14 prevents the connecting part 24 from protruding and avoids the connecting part 24 from being knocked off by external force or accidental collision, thus preventing the connection between the positioning block 2 and the analyzer body 1 from becoming loose. In this embodiment, the first screw connector is a screw or bolt. The first screw holes 13 and the second screw holes 241 of the connecting part 24 are screwed together by the first screw connector, so that a stable rigid connection is formed between the positioning block 2 and the analyzer body 1. During the testing process, this connection method effectively resists the impact force generated when the reagent card 4 is inserted and withdrawn, ensuring that the positioning block 2 will not shift or shake, thereby ensuring the positioning accuracy of the reagent card 4 and improving the accuracy of the test results. When it is necessary to replace the positioning block 2 or repair the positioning clip, simply unscrew the first screw to easily remove the positioning block 2, making the operation simple and convenient.

[0033] It is understood that, in other embodiments, rivet connections, magnetic connections, or snap-fit ​​connections may be used instead of the screw connection between the connecting part 24 and the analyzer body 1.

[0034] Specifically, the receiving groove 12 has several limiting holes (not shown) on its inner wall opposite to the inlet / outlet 11, and the positioning block 2 has several limiting posts 25 on its side wall away from the opening 23. The limiting posts 25 are inserted into the limiting holes. It can be understood that the limiting holes are adapted to the shape of the limiting posts 25. When the positioning block 2 is installed in the receiving groove 12, the limiting posts 25 on the side wall away from the opening 23 of the positioning block 2 are accurately inserted into the limiting holes on the inner wall of the receiving groove 12. Before the positioning block 2 is connected to the analyzer body 1 through the connecting part 24, it can play a preliminary positioning role for the positioning block 2, ensuring that the first screw hole 13 and the second screw hole 241 can be accurately aligned, which facilitates the subsequent installation of the first screw connection. It also further enhances the structural stability of the positioning block 2 during the detection process, avoids the positioning block 2 from shaking or shifting in the receiving groove 12, and thus improves the stability of the connection with the reagent card 4, providing a reliable guarantee for the stable detection of the reagent card 4.

[0035] Specifically, the inner wall of the card slot 21 is provided with a first through hole 211 and a second through hole 212. The first through hole 211 is located at the end of the card slot 21 away from the inlet / outlet 11, and the second through hole 212 is located between the inlet / outlet 11 and the first through hole 211. The positioning block 2 is provided with a sliding groove 26. The first through hole 211 and the second through hole 212 are respectively connected to the two ends of the sliding groove 26. The elastic buckle 22 is slidably connected to the sliding groove 26. One end of the elastic buckle 22 passes through the first through hole 211 or the second through hole 212 and enters the card slot 21 to contact the reagent card 4. When the reagent card 4 enters the card slot 21 from the inlet / outlet 11 and moves towards the end away from the inlet / outlet 11, it will gradually approach the second through hole 212 and the first through hole 211. Because the elastic buckle 22 is slidably connected to the slide groove 26, and both ends of the slide groove 26 are connected to the first through hole 211 and the second through hole 212 respectively, the elastic buckle 22 can slide within the slide groove 26, and one end can pass through the first through hole 211 or the second through hole 212 into the card slot 21. During the movement of the reagent card 4, the elastic buckle 22 will enter the card slot 21 and engage with the reagent card 4, ensuring that the reagent card 4 will not move arbitrarily during testing.

[0036] Specifically, the elastic buckle 22 includes: a snap-fit ​​member 221; the snap-fit ​​member 221 is slidably connected to the slide groove 26, and the two ends of the snap-fit ​​member 221 are respectively provided with an abutment portion 2211 and a snap-fit ​​portion 2212, the abutment portion 2211 and the snap-fit ​​portion 2212 respectively passing through the first through hole 211 and the second through hole 212; the abutment portion 2211 enters the slot 21, and the reagent card 4 moves along the slot 21 to press the abutment portion 2211, causing the abutment portion 2211 to move along the direction of the first through hole 211, so that the snap-fit ​​portion 2212 enters the slot 21 and snaps into the reagent card 4. When the reagent card 4 moves along the slot 21, it will first contact the abutment portion 2211 that has passed through the first through hole 211 and entered the slot 21. As the reagent card 4 continues to move, it will press the abutment portion 2211, forcing the abutment portion 2211 to move into the slide groove 26 along the direction of the first through hole 211. Since the snap-fit ​​component 221 is slidably connected to the slide groove 26, the movement of the abutment part 2211 will cause the entire snap-fit ​​component 221 to slide within the slide groove 26. This allows the snap-fit ​​part 2212, originally located within the second through hole 212, to pass through the second through hole 212 and enter the snap-fit ​​groove 21, ultimately forming a snap-fit ​​with the holding groove 41 of the reagent card 4, fixing the reagent card 4 in the detection position and preventing it from moving during the detection process. The snap-fit ​​is automatically completed using the reagent card 4's own moving driving force, eliminating the need for an additional driving device, simplifying the structural design. Simultaneously, the snap-fit ​​is firm and reliable, effectively ensuring the stability of the reagent card 4 during detection, and reducing the contact area between the reagent card 4 and the elastic buckle 22, avoiding wear on the sidewalls of the reagent card 4, ensuring the integrity of the reagent card 4, and preventing reagent contamination of the analyzer body 1 due to reagent card 4 damage, thus improving the automation and reliability of the detection process.

[0037] Specifically, the slide groove 26 and the locking member 221 are both arc-shaped. Because both the slide groove 26 and the locking member 221 are arc-shaped, when the locking member 221 slides within the slide groove 26, the arc-shaped structure ensures that the movement trajectory of the locking member 221 perfectly matches the slide groove 26, reducing frictional resistance during sliding and making the sliding of the locking member 221 smoother. This arc-shaped design allows the movement directions of the abutment part 2211 and the locking part 2212 to better align with the movement path of the reagent card 4. Furthermore, the center of the slide groove 26 forms a fulcrum, allowing the locking part 2212 to move towards the second through hole 212 as the abutment part 2211 moves towards the first through hole 211. This enables the locking part 2212 to more naturally and quickly enter the card slot 21 and engage with the reagent card 4 when the reagent card 4 presses against the abutment part 2211, improving the continuity and response speed of the engagement action.

[0038] Specifically, the slide groove 26 is provided with a guide groove 261, a first limiting groove 262, and a second limiting groove 263. The first limiting groove 262 and the second limiting groove 263 extend from both ends of the guide groove 261 to the first through hole 211 and the second through hole 212, respectively. The width of the first limiting groove 262 and the second limiting groove 263 is greater than the width of the guide groove 261. The guide groove 261 guides the sliding of the snap-fit ​​member 221 within the slide groove 26, ensuring that the snap-fit ​​member 221 can only move along a preset trajectory and preventing it from deviating during sliding. The first limiting groove 262 and the second limiting groove 263 restrict the movement of the snap-fit ​​member 221, preventing it from detaching from the slide groove 26.

[0039] Specifically, the snap-fit ​​component 221 is provided with a first limiting part 2213 and a second limiting part 2214. The first limiting part 2213 and the second limiting part 2214 are disposed between the abutting part 2211 and the snap-fit ​​part 2212, with the first limiting part 2213 located at one end near the abutting part 2211 and the second limiting part 2214 located at one end near the snap-fit ​​part 2212. The first limiting part 2213 passes through the first limiting groove 262, and the second limiting part 2214 passes through the second limiting groove 263. It can be understood that the width of the first limiting part 2213 and the second limiting part 2214 is greater than the groove width of the guide groove 261 and the diameter of the first through hole 211 and the second through hole 212; the diameters of the first through hole 211 and the second through hole 212 are respectively smaller than the groove widths of the first limiting groove 262 and the second limiting groove 263. The widths of the first limiting groove 262 and the second limiting groove 263 are greater than those of the guide groove 261. When the latching member 221 slides within the sliding groove 26, the first limiting part 2213 and the second limiting part 2214 move within the first limiting groove 262 and the second limiting groove 263, respectively. Due to the larger groove width, the sliding range of the latching member 221 is limited, preventing the latching member 221 from detaching from both ends of the sliding groove 26. At the same time, it ensures that the abutment part 2211 and the latching part 2212 can accurately pass through the first through hole 211 and the second through hole 212. When the latching member 221 slides within the sliding groove 26, the first limiting part 2213 moves synchronously within the first limiting groove 262, and the second limiting part 2214 moves synchronously within the second limiting groove 263. Due to the limiting effect of the first limiting groove 262 and the second limiting groove 263 on the first limiting part 2213 and the second limiting part 2214, the sliding range of the snap fastener 221 is strictly limited, which prevents the snap fastener 221 from slipping out of the slide groove 26 and provides a strong guarantee for the reliable snap fastening of the elastic buckle 22 and the reagent card 4.

[0040] Specifically, the elastic buckle 22 further includes: a first elastic member 222 and a second elastic member 223; the first elastic member 222 is disposed between the first limiting portion 2213 and the end of the first limiting groove 262 away from the first through hole 211; the second elastic member 223 is disposed between the second limiting portion 2214 and the end of the second limiting groove 263 near the second through hole 212; the first elastic member 222 and the second elastic member 223 are respectively disposed in the first limiting groove 262 and the second limiting groove 263; the first elastic member 222 is used to drive the first limiting portion 2213 closer to the first through hole 211, so that the abutting portion 2211 slides to the slot 21; the second elastic member 223 is used to drive the second limiting portion 2214 closer to the guide groove 261. In the initial state, the first elastic member 222 is in a natural state, and its elastic force will drive the first limiting part 2213 to approach the first through hole 211, thereby driving the abutting part 2211 to pass through the first through hole 211 and enter the card slot 21, waiting to contact the reagent card 4; the second elastic member 223 is also in a natural state or a slightly compressed state, and its elastic force will drive the second limiting part 2214 to approach the guide groove 261, so that the locking part 2212 is in the second through hole 212 or the sliding groove 26, without affecting the entry of the reagent card 4. When the reagent card 4 presses against the contact portion 2211, the first limiting portion 2213 moves away from the first through hole 211, compressing the first elastic member 222. At the same time, the second limiting portion 2214 moves away from the guide groove 261, causing the locking portion 2212 to enter the card slot 21 and engage with the holding groove 41 aligned with the second through hole 212. At this time, the second elastic member 223 is compressed. When the reagent card 4 is removed, the elastic force of the first elastic member 222 and the second elastic member 223 will push the first limiting portion 2213 and the second limiting portion 2214 to reset, so that the contact portion 2211 and the locking portion 2212 return to their initial positions, waiting for the next engagement. Through the elastic force of the first elastic element 222 and the second elastic element 223, the elastic buckle 22 is automatically reset when no external force is applied, ensuring that the equipment can quickly return to the initial state after each test, which facilitates the smooth progress of the next test. At the same time, the elastic force of the second elastic element 223 can also enhance the snapping force between the snapping part 2212 and the reagent card 4, making the snapping more secure and improving the reliability and repeatability of the equipment.

[0041] In this embodiment, both the first elastic element 222 and the second elastic element 223 are compression springs. The first elastic element 222 is sleeved on the snap-fit ​​221 between the limiting part and the end of the first limiting groove 262 away from the first through hole 211. The second elastic element 223 is sleeved on the snap-fit ​​221 between the second limiting part 2214 and the end of the second limiting groove 263 near the second through hole 212. The position setting and type selection of the first elastic element 222 and the second elastic element 223 not only provide good limiting and protection for the first elastic element 222 and the second elastic element 223, preventing them from shifting, twisting or falling off during the extension and contraction process, ensuring stable output of elastic force, and ensuring that the abutment part 2211 and the snap-fit ​​part 2212 can be accurately reset; it also makes the connection between the elastic element and the snap-fit ​​221 more compact, making full use of the internal space of the positioning block 2, reducing interference with other components, and simplifying the installation process, which is convenient for later maintenance and replacement.

[0042] Preferably, there are two slide grooves 26 and two elastic buckles 22. The two slide grooves 26 are symmetrically arranged on both sides of the positioning block 2 and located on both sides of the slot 21. The two elastic buckles 22 are slidably connected to the two slide grooves 26 respectively. There are also two first through holes 211 and two second through holes 212. The two first through holes 211 are symmetrically arranged on both side walls of the slot 21, and the two second through holes 212 are symmetrically arranged on both side walls of the slot 21. The two elastic buckles 22 can form a symmetrical clamping force on the reagent card 4 from both sides of the slot 21, so that the reagent card 4 is subjected to balanced force during the detection process, avoiding the tilting or displacement of the reagent card 4 caused by unilateral force, significantly improving the positioning effect and stability of the reagent card 4, thereby ensuring the accuracy of the detection results. At the same time, the symmetrical structure design also makes the overall force of the positioning block 2 more uniform, extending the service life of the analyzer.

[0043] Specifically, the fluorescence immunoassay analyzer of this embodiment further includes: a cover plate 3; the cover plate 3 is detachably connected to the edge of the groove 26. The cover plate 3 can effectively shield and protect the elastic buckle 22 in the groove, preventing external dust and impurities from entering the groove and affecting the sliding performance of the components. The detachable connection method not only ensures stable protection of the elastic buckle 22, but also facilitates quick removal of the cover plate 3 when maintenance or replacement of the elastic buckle 22 is required. The operation is flexible and convenient, further improving the maintenance convenience of the analyzer.

[0044] This embodiment provides a fluorescence immunoassay analyzer that features a detachable positioning block with an elastic latch connected to the analyzer body. When the elastic latch becomes fatigued or damaged due to frequent reagent card insertion and removal, the analyzer body can be replaced simply by removing the positioning block from its receiving slot, without disassembling the analyzer body. This simplifies the maintenance process, shortens maintenance time, and avoids the risk of secondary damage to the analyzer's internal precision detection components during disassembly, thus improving equipment maintenance efficiency and lifespan. Simultaneously, the reagent card moves along the slot of the positioning block and engages with the elastic latch, enhancing the positioning effect of the reagent card, ensuring its stability during detection, and improving the accuracy of the test results.

[0045] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A fluorescence immunoassay analyzer for detecting reagent cards, characterized in that, include: The analyzer body is provided with an inlet and an outlet and a receiving tank communicating with the inlet and outlet; A positioning block is inserted into the receiving groove and is detachably connected to the analyzer body; the positioning block is provided with a slot and an elastic buckle, and the reagent card can move along the slot and engage with the elastic buckle.

2. The fluorescence immunoassay analyzer according to claim 1, characterized in that, The positioning block has an opening corresponding to the inlet and outlet, and the opening communicates with the slot; the side edge of the opening of the positioning block has a connecting part, and the connecting part is detachably connected to the analyzer body.

3. The fluorescence immunoassay analyzer according to claim 2, characterized in that, The analyzer body is provided with a first screw hole, which is distributed on the outer periphery of the receiving groove; the number of the first screw holes corresponds one-to-one with the number of the connecting parts, and the connecting parts are provided with a second screw hole, through which a first screw connector is passed, and the first screw connector is screwed into the first screw hole and the second screw hole.

4. The fluorescence immunoassay analyzer according to claim 2, characterized in that, The receiving groove has several limiting holes on its inner sidewall opposite to the inlet and outlet, and the positioning block has several limiting posts on its sidewall away from the opening, with the limiting posts inserted into the limiting holes.

5. The fluorescence immunoassay analyzer according to claim 1, characterized in that, The inner wall of the card slot is provided with a first through hole and a second through hole. The first through hole is located at the end of the card slot away from the inlet and outlet, and the second through hole is located between the inlet and outlet and the first through hole. The positioning block is provided with a sliding groove. The first through hole and the second through hole are respectively connected to the two ends of the sliding groove. The elastic buckle is slidably connected to the sliding groove. One end of the elastic buckle passes through the first through hole or the second through hole and enters the card slot to contact the reagent card.

6. The fluorescence immunoassay analyzer according to claim 5, characterized in that, The elastic buckle includes: a snap-fit ​​component; the snap-fit ​​component is slidably connected to the slide groove, and the two ends of the snap-fit ​​component are respectively provided with an abutment portion and a snap-fit ​​portion, the abutment portion and the snap-fit ​​portion passing through the first through hole and the second through hole respectively; the abutment portion enters the slot, and the reagent card moves along the slot to press the abutment portion, causing the abutment portion to move along the direction of the first through hole, so that the snap-fit ​​portion enters the slot and snaps into the reagent card.

7. The fluorescence immunoassay analyzer according to claim 6, characterized in that, The slide groove is arc-shaped, and the snap-fit ​​component is arc-shaped.

8. The fluorescence immunoassay analyzer according to claim 7, characterized in that, The slide is provided with a guide groove, a first limiting groove and a second limiting groove. The first limiting groove and the second limiting groove extend from both ends of the guide groove to the first through hole and the second through hole, respectively. The width of the first limiting groove and the second limiting groove is greater than the width of the guide groove.

9. The fluorescence immunoassay analyzer according to claim 8, characterized in that, The snap-fit ​​component has a first limiting part and a second limiting part, which are located between the abutting part and the snap-fit ​​part. The first limiting part is located at one end near the abutting part, and the second limiting part is located at one end near the snap-fit ​​part. The first limiting part passes through the first limiting groove, and the second limiting part passes through the second limiting groove.

10. The fluorescence immunoassay analyzer according to claim 9, characterized in that, The elastic buckle further includes: a first elastic element and a second elastic element; the first elastic element is disposed between the first limiting portion and the end of the first limiting groove away from the first through hole; the second elastic element is disposed between the second limiting portion and the end of the second limiting groove near the second through hole; the first elastic element and the second elastic element are respectively disposed in the first limiting groove and the second limiting groove; the first elastic element is used to drive the first limiting portion closer to the first through hole, so that the abutting portion slides to the buckle groove; the second elastic element is used to drive the second limiting portion closer to the guide groove.

Images