Reagent card carrying device of dry-type fluorescence quantitative analyzer

Abstract

The utility model discloses a reagent card carrying device of a dry-type fluorescence quantitative analyzer. The reagent card carrying device comprises a base; the moving mechanism is fixed on the base, a clamping seat for placing a reagent card is fixed on a moving plate of the moving mechanism, a clamping groove for placing the reagent card is formed in one side end of the clamping seat, an inlet for inserting the reagent card is formed in the front side of the clamping groove, a stop block is arranged on the rear side of the clamping groove, an opening is formed in the upper part of the clamping groove, and pressing edges are arranged on two sides of the opening; an upper elastic piece is fixed on the bottom surface of the clamping groove, a reagent card is inserted into the clamping groove through the inlet and abuts against the check block, the reagent card is connected between the upper elastic piece and the lower pressing edge in a pressing mode, a detection block is fixed on the moving plate, and the moving mechanism is electrically connected with a controller of the analyzer. And the position sensor is fixed on the base, the detection end of the position sensor corresponds to the position of the detection block, and the position sensor is electrically connected with the controller. The device has the advantages of being convenient to install, small in error and high in stability.

Description

Technical Field

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

[0002] Fluorescence immunoassay analyzers are commonly used instruments in biomedical testing. This technology utilizes the property that analytes fluoresce when excited by light of a specific wavelength for qualitative and quantitative detection. Due to its advantages such as high sensitivity, strong specificity, fast detection speed, and safety and stability, fluorescence immunoassay technology is widely used in clinical testing and has broad application prospects in areas such as endocrine disease detection, infectious disease detection, obstetric and gynecological disease detection, tumor marker detection, genetic disease detection, and blood and cytology testing.

[0003] A reagent card (strip) transport device is used in analyzers to automatically transport reagent cards from outside the instrument to inside, eliminating the need for manual placement of reagent cards and thus improving the automation level of the analyzer. Current reagent card transport devices are indirectly connected to the transmission components, which often leads to the following problems: 1. Multiple installation steps increase errors, affecting measurement data; 2. The components transmitting power to the transport device introduce a tolerance, increasing measurement errors; 3. The transport device is prone to shaking during operation, affecting the accurate detection of reagent cards.

[0004] Therefore, how to provide a reagent card carrier device for a dry fluorescence quantitative analyzer that is easy to install, has low error, and is highly stable is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a reagent card carrier device for a dry fluorescence quantitative analyzer that is easy to install, has low error, and is highly stable.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A reagent card carrier device for a dry fluorescence quantitative analyzer, comprising:

[0008] Base;

[0009] A moving mechanism is fixed to the base. A card holder for placing a reagent card is fixed on the moving plate of the moving mechanism. A card slot for placing the reagent card is opened on one side of the card holder. The front side of the card slot is an inlet for inserting the reagent card. A stop block is provided on the rear side of the card slot. The upper part of the card slot is open, and both sides of the opening are provided with pressing edges. An upper spring is fixed on the bottom surface of the card slot. The reagent card is inserted into the card slot through the inlet and abuts against the stop block. The reagent card is pressed between the upper spring and the pressing edges. A detection block is fixed on the moving plate. The moving mechanism is electrically connected to the controller of the analyzer.

[0010] A position sensor is fixed on the base, and the detection end of the position sensor is arranged corresponding to the position of the detection block. The position sensor is electrically connected to the controller.

[0011] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a reagent card transport device for a dry fluorescence quantitative analyzer. The reagent card is inserted into the card slot through the inlet and abuts against the stop block by manual or robotic arm. When the reagent card is inserted into place, it is stably pressed between the upper spring and the lower pressing edge, so that the reagent card will not shake and the detection accuracy is guaranteed. Then, the moving plate on the moving mechanism drives the reagent card to move into the analyzer. When the detection block on the moving plate reaches the position sensor, the position sensor generates a signal and sends it to the controller. The controller controls the moving mechanism to stop working. This ensures that the reagent card can be quickly positioned after being transported to the position and accurately moved to the position of the excitation light source in the analyzer so that the excitation light source can accurately irradiate the reagent card to complete the subsequent detection process.

[0012] Therefore, this device limits the reagent card's left and right movement through the side walls of the slot, and limits its up and down movement through the upper spring and lower pressing edge, thus providing omnidirectional control and preventing the reagent card from shaking during movement, which would affect the accurate detection. Furthermore, the combination of a position sensor and a detection block allows for precise positioning of the reagent card, ensuring that the excitation light source accurately illuminates the card and improving detection accuracy.

[0013] Furthermore, the upper spring includes:

[0014] Mounting plate, the mounting plate being fixed to the bottom surface of the slot;

[0015] An arc-shaped spring is provided, with one end of the arc-shaped spring fixedly connected to one side of the mounting plate, and the outer convex surface of the arc-shaped spring abutting against the bottom surface of the reagent card.

[0016] The beneficial effects of adopting the above technical solution are as follows: when the reagent card is inserted into the card slot, the upper surface of the reagent card is limited by the lower edge, the reagent card compresses the arc-shaped spring, and the arc-shaped spring pushes the reagent card upward in reaction, thereby limiting the reagent card and effectively preventing the reagent card from moving.

[0017] Furthermore, the other end of the arc-shaped spring is positioned away from the inlet.

[0018] The beneficial effect of adopting the above technical solution is that it avoids the problem of reagent card insertion difficulties caused by the other end (i.e., the free end) of the curved spring facing the inlet, which would obstruct the insertion of the reagent card. Therefore, setting the other end (i.e., the free end) of the curved spring away from the inlet makes it easier to insert the reagent card into the slot.

[0019] Furthermore, the arc-shaped spring pieces are arranged in two spaced-apart configurations.

[0020] The beneficial effects of adopting the above technical solution are: the two arc-shaped springs can support the reagent card at the same time, that is, provide dual-point support for the reagent card, which enables the reagent card to be inserted horizontally, avoiding the problem that the reagent card is easily inserted at an angle due to the single arc-shaped spring supporting the reagent card at a single point, which makes the reagent card difficult to insert.

[0021] Furthermore, the upper spring tabs are a plurality of tabs arranged at intervals along the length direction of the slot.

[0022] The beneficial effect of adopting the above technical solution is to improve the stability of reagent card connection.

[0023] Furthermore, the moving mechanism includes:

[0024] A drive motor is fixed to the base by a motor bracket, and a drive pulley is fixed on the output shaft of the drive motor;

[0025] Driven pulley, the driven pulley is rotatably mounted on the base;

[0026] A timing belt, which is wound around the driving pulley and the driven pulley;

[0027] A guide rail is fixed on the base and located on one side of the position sensor. A movable plate is slidably connected to the guide rail, and a connecting plate is fixed on the movable plate. The timing belt is pressed between the connecting plate and the timing belt pressure plate.

[0028] The beneficial effects of adopting the above technical solution are as follows: After the reagent card is inserted into the card slot, the drive motor drives the active pulley to rotate. The active pulley drives the driven pulley to rotate through the synchronous belt. When the synchronous belt moves, it drives the moving plate to move synchronously, thereby realizing the transport of the reagent card. Therefore, this device uses a synchronous belt to directly drive the moving plate, reducing the tolerance caused by power transmission and reducing the generation of errors. Furthermore, the use of guide rails to guide the displacement of the moving plate ensures high stability, preventing wobbling and offset during movement, thereby reducing errors and improving the accuracy of reagent card detection. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0030] Fig. 1 A schematic diagram of the structure of a reagent card carrier device for a dry fluorescence quantitative analyzer provided by this utility model.

[0031] Fig. 2 This is a schematic diagram of the upper spring clip structure. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] See Figs. 1-2 As shown in the figure, this utility model discloses a reagent card carrier device for a dry fluorescence quantitative analyzer, comprising:

[0034] Base 14;

[0035] The moving mechanism is fixed on the base 14. The moving plate 7 of the moving mechanism is fixed with a card holder 2 for placing the reagent card 1. A card slot 21 for placing the reagent card 1 is opened on one side of the card holder 2. The front side of the card slot 21 is an inlet 211 for inserting the reagent card 1. A stop block 4 is provided on the rear side of the card slot 21. The upper part of the card slot 21 is open, and both sides of the opening are provided with pressing edges 22. An upper spring piece 3 is fixed on the bottom surface of the card slot 21. The reagent card 1 is inserted into the card slot 21 through the inlet 211 and abuts against the stop block 4. The reagent card 1 is pressed between the upper spring piece 3 and the pressing edge 22. A detection block 16 is fixed on the moving plate 7. The moving mechanism is electrically connected to the controller of the analyzer.

[0036] Position sensor 13 is fixed on base 14, and its detection end is arranged corresponding to the position of detection block 16. Position sensor 13 is electrically connected to controller. Position sensor 13 can be an optocoupler sensor or an infrared sensor.

[0037] Upper shrapnel 3 includes:

[0038] Mounting plate 31 is fixed to the bottom surface of slot 21 by screws;

[0039] The curved spring 32 has one end fixedly connected to one side of the mounting plate 31, and the outer convex surface 321 of the curved spring 32 abuts against the bottom surface of the reagent card 1.

[0040] The other end of the arc-shaped spring clip 32 is positioned away from the entrance 211.

[0041] The two arc-shaped spring pieces 32 are arranged at intervals.

[0042] The upper spring piece 3 consists of multiple pieces arranged at intervals along the length of the slot 21.

[0043] Mobile institutions include:

[0044] Drive motor 9 is fixed on base 14 by motor bracket 10, and drive pulley 12 is fixed on output shaft of drive motor 9;

[0045] Driven pulley 5 is rotatably mounted on base 14;

[0046] Synchronous belt 8 is wound around driving pulley 12 and driven pulley 5;

[0047] The guide rail 11 is fixed on the base 14 and is located on one side of the position sensor 13. A movable plate 7 is slidably connected to the guide rail 11, and a connecting plate 17 is fixed on the movable plate 7. The synchronous belt 8 is pressed between the connecting plate 17 and the synchronous belt pressure plate 6 by bolts.

[0048] This device has the following advantages:

[0049] 1. The carrier device has a small and compact structure, making it easy to integrate into the analyzer, realizing the integration of testing and incubation, and facilitating operation.

[0050] 2. Assembly is simple and assembly accuracy is easy to ensure.

[0051] 3. The use of position sensors and detection blocks enables rapid positioning of the reagent card after it has been transported to its destination. Positioning is simple and accurate, which helps to shorten the detection time.

[0052] 4. The reagent card is limited to the left and right by the two side walls of the card slot, and the reagent card is limited to the up and down by the upper spring and the lower pressing edge, so as to limit the reagent card in all directions and prevent the reagent card from shaking when moving, which would affect the accurate detection of the reagent card.

[0053] 5. Two curved springs can support the reagent card simultaneously, providing dual-point support for the reagent card from both the left and right sides. This allows the reagent card to be inserted horizontally, avoiding the problem of difficulty in inserting the reagent card due to tilting caused by using a single curved spring to support the reagent card at a single point.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reagent card carrier device for a dry fluorescence quantitative analyzer, characterized in that, include: Base (14); The moving mechanism is fixed on the base (14). A card holder (2) for placing a reagent card (1) is fixed on the moving plate (7) of the moving mechanism. A card slot (21) for placing the reagent card (1) is opened on one side of the card holder (2). The front side of the card slot (21) is an inlet (211) for inserting the reagent card (1). A stop block (4) is provided on the rear side of the card slot (21). The upper part of the card slot (21) is an opening. The arrangement is such that both sides of the opening are provided with a pressing edge (22), and an upper spring piece (3) is fixed on the bottom surface of the slot (21). The reagent card (1) is inserted into the slot (21) through the inlet (211) and abuts against the stop block (4). The reagent card (1) is pressed between the upper spring piece (3) and the pressing edge (22). A detection block (16) is fixed on the moving plate (7). The moving mechanism is electrically connected to the controller of the analyzer. A position sensor (13) is fixed on the base (14). The detection end of the position sensor (13) is arranged in a position corresponding to the detection block (16). The position sensor (13) is electrically connected to the controller.

2. The reagent card carrier device for a dry fluorescence quantitative analyzer according to claim 1, characterized in that, The upper spring (3) includes: Mounting plate (31), which is fixed to the bottom surface of the slot (21); An arc-shaped spring (32) is fixedly connected at one end to one side of the mounting plate (31), and the outer convex surface (321) of the arc-shaped spring (32) abuts against the bottom end surface of the reagent card (1).

3. The reagent card carrier device for a dry fluorescence quantitative analyzer according to claim 2, characterized in that, The other end of the arc-shaped spring (32) is arranged away from the inlet (211).

4. The reagent card carrier device for a dry fluorescence quantitative analyzer according to claim 2, characterized in that, The arc-shaped springs (32) are two arranged at intervals.

5. A reagent card carrier device for a dry fluorescence quantitative analyzer according to any one of claims 1-4, characterized in that, The upper spring sheet (3) consists of multiple spring sheets arranged at intervals along the length direction of the slot (21).

6. A reagent card carrier device for a dry fluorescence quantitative analyzer according to any one of claims 1-4, characterized in that, The moving mechanism includes: A drive motor (9) is fixed on the base (14) by a motor bracket (10), and a drive pulley (12) is fixed on the output shaft of the drive motor (9); Driven pulley (5), which is rotatably mounted on the base (14); A timing belt (8) is wound around the driving pulley (12) and the driven pulley (5); The guide rail (11) is fixed on the base (14) and is located on one side of the position sensor (13). The moving plate (7) is slidably connected to the guide rail (11) and the connecting plate (17) is fixed on the moving plate (7). The timing belt (8) is pressed between the connecting plate (17) and the timing belt pressure plate (6).

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