Reagent card magazine and fluorescence immunoassay analyzer
By introducing a counterweight and a check valve into the reagent cartridge, the problems of complex cartridge structure and inconvenient cartridge dispensing were solved, achieving a stable and convenient dispensing process and accurate test results.
Patent Information
- Application Number
- CN202422953093.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing reagent cartridges are complex in structure, cumbersome to operate, inconvenient to dispense, and pose a risk of misoperation.
A reagent card magazine was designed, comprising a magazine housing and a counterweight, equipped with a check valve structure, and using a limiting step and an elastic locking element to achieve unidirectional movement of the reagent card to ensure smooth card dispensing. A desiccant is placed inside the housing to reduce the impact of humidity.
This technology enables stable and convenient dispensing of reagent cards, reduces the risk of misoperation, and improves the automation level of the equipment and the accuracy of test results.
Smart Images
Figure CN223664625U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical detection equipment technical field, concretely relates to reagent card magazine and fluorescent immunoassay instrument. BACKGROUND
[0002] In the full-automatic immunofluorescence instrument, in order to realize batch automatic detection, the instrument needs to reserve enough detection reagent cards in the supply of detection reagent cards, and the reagent cards need to be stored in a suitable container, such as a reagent card magazine, to facilitate the storage and card feeding of reagent cards.
[0003] The existing reagent card magazine structure is relatively complex, and the use is cumbersome, and there may be misoperation during use, resulting in deficiencies in the accommodation state of reagent cards, convenient card feeding and the like. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model provides a reagent card magazine and fluorescent immunoassay instrument to solve the problems of complex structure, cumbersome operation and inconvenient card feeding.
[0005] In the first aspect, the utility model provides a reagent card magazine, which comprises a magazine shell and a counterweight. The magazine shell has a containing cavity for stacking and containing reagent cards, the lower part of the magazine shell has a card feeding port, the bottom of the shell is provided with a driving groove, the magazine shell is suitable for the driving end of the external card feeding driving element to extend into the containing cavity through the driving groove to drive the reagent card at the bottom layer to feed out of the card feeding port, and the counterweight is arranged in the magazine shell. The counterweight is movably arranged in the containing cavity of the magazine shell, a check structure is arranged between the counterweight and the magazine shell, the check structure comprises a limiting step arranged on the inner wall of the magazine shell and an elastic locking element arranged on the counterweight, the elastic locking element is unidirectionally locked with the limiting step, so that the counterweight is suitable for unidirectional movement close to the driving groove.
[0006] The reagent card magazine provided by the utility model has the following beneficial effects. The card feeding port is used for feeding the reagent card out of the magazine shell. The driving end of the external card feeding driving element extends into the containing cavity through the driving groove, and the reagent card is sent out of the card feeding port to the outside of the magazine shell, and the card feeding is completed. The counterweight arranged in the magazine shell ensures that the reagent cards can be smoothly fed out in sequence. The check structure arranged between the counterweight and the magazine shell enables the counterweight to only move in one direction with the card feeding, and prevents the counterweight from moving back. The check structure is arranged on the magazine shell, and the counterweight is arranged with the cooperating elastic locking element. When the counterweight descends, the elastic locking element can be unidirectionally locked with the next step, and the upward movement of the elastic locking element is prevented, so that the counterweight can only move in one direction downward. The reagent card magazine provided by the utility model has the advantages of simple structure, stable and convenient card feeding.
[0007] In an alternative embodiment, the magazine shell comprises a first shell and a second shell, the first shell comprises a shell body, a bottom wall, a top wall and two side walls arranged at four sides of the shell body, the first shell and the second shell are connected and form an accommodating cavity inside; the drive groove is arranged on the bottom wall of the first shell.
[0008] In an alternative embodiment, the limiting steps extend along the stacking direction of the reagent cards, the limiting steps comprise multiple steps, the steps are inclined towards the drive groove, and the elastic locking piece is adapted to abut against any step.
[0009] In an alternative embodiment, the shell body of the first shell and the second shell are both provided with limiting steps; the elastic locking piece comprises a pair of elastic pieces, one end of the pair of elastic pieces is connected with the counterweight, and the other end of the pair of elastic pieces is arranged inclinedly towards the shell body and the second shell and is simultaneously clamped with the limiting steps of the shell body and the second shell.
[0010] In an alternative embodiment, the shell body of the first shell is provided with limiting steps; the elastic locking piece comprises a barb, the barb comprises a handle portion and a hook portion, the handle portion is connected with the counterweight, and the hook portion is buckled with the limiting step.
[0011] In an alternative embodiment, at least two check structures are arranged, the limiting steps of adjacent check structures are arranged in parallel, and the elastic locking piece is arranged correspondingly with the limiting steps.
[0012] In an alternative embodiment, any side wall of the first shell is provided with a sandwich structure for accommodating the desiccant, and an inner cavity of the sandwich structure is communicated with the accommodating cavity.
[0013] In an alternative embodiment, the counterweight comprises a counterweight shell and a counterweight cover plate, the counterweight shell and the counterweight cover plate are connected and enclosed to form an accommodating groove for accommodating the desiccant; the counterweight cover plate is provided with a plurality of air holes to communicate the accommodating groove with the accommodating cavity of the magazine shell.
[0014] In an alternative embodiment, the card outlet is provided with a door, a side edge of the door is rotationally connected with the magazine shell, and an elastic piece is arranged between the door and the shell and is adapted to automatically close the door.
[0015] In a second aspect, the utility model also provides a fluorescent immunoassay analyzer comprising the reagent card magazine of any one of the above technical solutions.
[0016] Beneficial effects: because the fluorescent immunoassay analyzer comprises the reagent card magazine, has the same effect as the reagent card magazine, and will not be described here. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the description of the specific embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.
[0018] Figure 1 A structural schematic view of a reagent card magazine according to an embodiment of the present application is shown in the figure.
[0019] Figure 2 A structural schematic view of the reagent card magazine from another perspective is shown in the figure. Figure 1
[0020] Figure 3 A structural schematic view of the internal structure of the reagent card magazine in a working state is shown in the figure.
[0021] Figure 4 A structural schematic view of the reagent card magazine after omitting the door is shown in the figure. Figure 1
[0022] A local enlarged view of position A in the figure. Figure 5 Figure 4
[0023] A structural schematic view of the reagent card magazine in a card-out state is shown in the figure. Figure 6
[0024] Figure 7 A structural schematic view of a counterweight of a reagent card magazine according to an embodiment of the present application is shown in the figure.
[0025] Figure 8 A structural exploded view of the counterweight is shown in the figure. Figure 7
[0026] A structural schematic view of the internal structure of another reagent card magazine according to an embodiment of the present application is shown in the figure. Figure 9
[0027] A local enlarged view of the counterweight in the figure. Figure 10 Figure 9 A structural schematic view of the reagent card magazine in which the second shell is provided with a limiting step is shown in the figure.
[0028] Figure 11 Figure 9 A local enlarged view of position B in the figure.
[0029] Figure 12 A local enlarged view of position B in the figure. Figure 3
[0030] Explanation of reference signs:
[0031] 1, the magazine shell; 11, the card outlet; 12, the drive slot; 13, the first shell; 131, the shell body; 1311, the reinforcing rib; 132, the side wall; 1321, the card slot; 133, the sandwich structure; 134, the force slot; 135, the bottom wall; 14, the second shell; 2, the counterweight; 21, the counterweight shell; 22, the counterweight cover plate; 221, the air hole; 31, the limiting step; 32, the elastic locking piece; 321, the elastic sheet; 322, the barb; 4, the door; 5, the first magnetic attraction piece; 6, the handle; 10, the reagent card magazine; 20, the reagent card. DETAILED DESCRIPTION
[0032] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0033] The embodiments of the present application will be described below with reference to the drawings. Figures 1 to 12
[0034] According to the embodiments of the present application, on the one hand, a reagent card magazine 10 is provided, which comprises a magazine shell 1 and a counterweight 2. The magazine shell 1 has a containing cavity for stacking and containing reagent cards 20. The lower part of the magazine shell 1 has a card outlet 11, and the bottom of the shell is provided with a drive slot 12. The magazine shell 1 is adapted for an external card outlet driving piece to extend into the containing cavity through the drive slot 12 to drive the reagent card 20 at the bottom layer to be ejected from the card outlet 11. The counterweight 2 is arranged in the magazine shell 1. The counterweight 2 is movably arranged in the containing cavity of the magazine shell 1. A check structure is arranged between the counterweight 2 and the magazine shell 1. The check structure comprises a limiting step 31 arranged on the inner wall of the magazine shell 1 and an elastic locking piece 32 arranged on the counterweight 2. The elastic locking piece 32 is unidirectionally locked with the limiting step 31, so that the counterweight 2 is adapted for unidirectional movement close to the drive slot 12.
[0035] The reagent card magazine 10 provided by the embodiments of the present application is used for storing and ejecting the reagent cards 20. The reagent cards 20 are stacked and placed in the containing cavity of the magazine shell 1 along the thickness direction.
[0036] The card outlet 11 is used for the reagent cards 20 to be ejected from the magazine shell 1.
[0037] The driving end of the external card-out driving member extends into the accommodating cavity through the driving groove 12, contacts the reagent card 20 located at the bottom layer, drives the reagent card 20 to move towards the card-out port 11, and sends the reagent card 20 out of the card-out port 11 to the outside of the cartridge shell 1, thereby completing the card-out.
[0038] When the cartridge shell 1 is filled with the reagent cards 20, the gravity of the counterweight 2 presses on the uppermost reagent card 20, so that the reagent cards 20 in the cartridge are prevented from tilting, and when the reagent card 20 located at the bottom layer is out of the cartridge, the reagent cards 20 above the reagent card 20 can timely fill the vacancy of the reagent card 20, thereby realizing automatic filling, facilitating the next card-out, and ensuring that the reagent cards 20 can be sequentially and smoothly out of the cartridge.
[0039] The one-way movement of the counterweight 2 is realized by setting the non-return structure between the counterweight 2 and the cartridge shell 1, so that the counterweight 2 can only move in one direction when the reagent cards 20 are out of the cartridge, thereby preventing the counterweight 2 from moving back in the use process, and ensuring that the reagent cards 20 are always arranged in order in the cartridge shell 1.
[0040] The non-return structure is realized by setting the limiting ladder 31 on the cartridge shell 1, and the counterweight 2 is provided with the elastic locking member 32 matched with the limiting ladder 31, so that the elastic locking member 32 can be locked with the next step in one direction when the counterweight 2 is lowered, and the upward movement of the elastic locking member 32 is prevented, thereby enabling the counterweight 2 to only move in one direction downward.
[0041] The reagent card cartridge 10 provided by the embodiment of the utility model has the advantages of simple structure, stable and convenient card-out.
[0042] In some embodiments, the limiting ladder 31 extends along the stacking direction of the reagent cards 20, the limiting ladder 31 comprises multiple steps, the steps are inclined towards the driving groove 12, and the elastic locking member 32 is adapted to abut against any step.
[0043] Specifically, since the reagent cards 20 are stacked along the thickness direction, the reagent card 20 located at the bottom layer is out of the cartridge, and the reagent cards 20 above the reagent card 20 are lowered to fill the vacancy under the action of the counterweight 2.
[0044] The steps are inclined towards the driving groove 12, and the elastic locking member 32 is adapted to abut against any step, so that the elastic locking member 32 is locked with the steps, and the counterweight 2 is effectively prevented from moving back.
[0045] In some embodiments, the cartridge shell 1 comprises a first shell 13 and a second shell 14, the first shell 13 comprises a shell body 131, a bottom wall 135, a top wall and two side walls 132 arranged at four side edges of the shell body 131, the first shell 13 and the second shell 14 are connected and form an accommodating cavity inside, and the driving groove 12 is arranged on the bottom wall 135 of the first shell 13.
[0046] Specifically, the first shell 13 is a C-shaped semi-enclosed structure, and the second shell 14 is a straight plate structure. In some embodiments, the first shell 13 and the second shell 14 are clamped by a clamping structure, and a containing cavity for placing the reagent card 20 is formed between the first shell 13 and the second shell 14.
[0047] In some embodiments, the top of the first shell 13, that is, the side opposite to the driving groove 12, is closed.
[0048] In some embodiments, as shown in Figure 3 In combination with Figure 7 , Figure 8 It is shown that the shell body 131 of the first shell 13 and the second shell 14 are each provided with a limiting step 31; the elastic locking member 32 includes a pair of elastic sheets 321, one end of the pair of elastic sheets 321 is respectively connected with the counterweight 2, and the other end of the pair of elastic sheets 321 is respectively inclinedly arranged towards the shell body 131 and the second shell 14 and simultaneously clamped with the limiting step 31 of the shell body 131 and the limiting step 31 of the second shell 14.
[0049] In some embodiments, as shown in Figures 9 to 12 It is shown that the shell body 131 of the first shell 13 is each provided with a limiting step 31; the elastic locking member 32 includes a barb 322, the barb 322 includes a handle portion and a hook portion, the handle portion is connected with the counterweight 2, and the hook portion is buckled with the limiting step 31.
[0050] In some embodiments, at least two check structures are provided, the limiting steps 31 of adjacent check structures are arranged in parallel, and the elastic locking members 32 are arranged correspondingly with the limiting steps 31.
[0051] Since there is a failure probability of a single check structure, the balance stability is insufficient when descending. Therefore, by providing at least two check structures, a redundant design is formed, which can reduce the failure probability of the check structure, and at the same time, improve the balance stability of the counterweight 2 when descending.
[0052] Specifically, in one embodiment, three check structures are provided, three limiting steps 31 are arranged in parallel and at intervals in the magazine shell 1, and correspondingly, three elastic locking members 32 are arranged in parallel and at intervals on the counterweight 2, and the positions of the three elastic locking members 32 correspond one by one to the positions of the three limiting steps 31.
[0053] In some embodiments, any side wall 132 of the first shell 13 is provided with a sandwich structure 133 for containing a desiccant, and an inner cavity of the sandwich structure 133 is in communication with the containing cavity.
[0054] Since the reagent card 20 is a chromatographic reagent card 20, the chromatographic membrane NC as a reaction carrier and the corresponding reagent components coated thereon are easily affected by air humidity. Therefore, the reagent card magazine 10 provided in the embodiment can reduce the potential interference to the reagent card 20 during transportation and use by arranging the interlayer structure 133 on the side wall 132 of the first shell 13 and arranging the desiccant in the inner cavity of the interlayer structure 133.
[0055] Specifically, in some embodiments, the interlayer structure 133 is arranged on both side walls 132 of the shell body 131 of the first shell 13, and the desiccant is filled in both sides, which can reduce the air humidity in the containing cavity of the magazine shell 1, reduce the interference to the reagent card 20, and thus ensure the accuracy of the detection result of the reagent card 20.
[0056] In some embodiments, the counterweight 2 includes a counterweight shell 21 and a counterweight cover plate 22, and the counterweight shell 21 and the counterweight cover plate 22 are connected and enclosed to form a containing groove for containing the desiccant; the counterweight cover plate 22 is provided with a plurality of air holes 221 to communicate the containing groove with the containing cavity of the magazine shell 1.
[0057] In this way, the structure of the counterweight 2 can be fully utilized to increase the filling amount of the desiccant in the magazine shell 1, and further reduce the air humidity in the containing cavity.
[0058] In some embodiments, the elastic locking member 32 is connected with the counterweight cover plate 22.
[0059] Connecting the elastic locking member 32 with the counterweight cover plate 22 facilitates processing.
[0060] Specifically, in some embodiments, the elastic locking member 32 and the counterweight cover plate 22 are integrally connected, which facilitates production and manufacturing.
[0061] In some embodiments, the card outlet 11 is provided with a door 4, the side of the door 4 is rotationally connected with the magazine shell 1, and an elastic member is arranged between the door 4 and the shell, and the elastic member is adapted to automatically close the door 4.
[0062] Specifically, since the door 4 is arranged at the card outlet 11 and can be automatically closed under the action of the elastic member, the sealing property of the reagent card magazine 10 can be improved, and the reagent card 20 can be prevented from sliding out of the card outlet 11.
[0063] When the card is ejected, the external ejection driving element drives the reagent card 20 at the bottom layer to move towards the ejection opening 11. Since the door 4 and the magazine shell 1 are rotationally connected, the reagent card 20 is driven by the ejection driving element to push the door 4 and overcome the elastic force of the elastic element to open the door 4. After the reagent card 20 is pushed out of the magazine shell 1, the door 4 is no longer subjected to other external forces and is automatically closed under the elastic force of the elastic element.
[0064] Specifically, the elastic element includes a torsion spring, which is sleeved on the rotating shaft between the door 4 and the magazine shell 1, and the two ends of the torsion spring abut against the door 4 and the magazine shell 1, respectively.
[0065] In some embodiments, the side wall 132 of the magazine shell 1 is provided with a first magnetic attraction element 5, which is adapted to be magnetically attracted to a second magnetic attraction element of an external magazine body for loading the reagent card magazine 10.
[0066] In the reagent detection device, the reagent card magazine 10 filled with the reagent card 20 needs to be loaded into the external magazine body, and the side wall 132 of the external magazine body is provided with a second magnetic attraction element. By providing the first magnetic attraction element 5 on the side wall 132 of the magazine shell 1 and positioning the first magnetic attraction element 5 corresponding to the position of the second magnetic attraction element, when the reagent card magazine 10 is loaded into the external magazine body, the first magnetic attraction element 5 and the second magnetic attraction element will be automatically attracted, thereby realizing rapid positioning and fixing of the reagent card magazine 10.
[0067] In some embodiments, the side wall 132 of the magazine shell 1 is provided with a handle 6 for easy gripping. By providing the handle 6, the user can easily grip and transfer the reagent card magazine 10. Especially when the reagent card magazine 10 is loaded into or removed from the external magazine body, the user can easily perform the gripping operation.
[0068] In some embodiments, the abutting seam of the first shell 13 and the second shell 14 is provided with a force applying groove 134.
[0069] By providing the force applying groove 134, when the first shell 13 and the second shell 14 are disassembled, it is convenient to apply force to the first shell 13 and the second shell 14 at the force applying groove 134, thereby facilitating the separation of the first shell 13 and the second shell 14, so as to open the magazine shell 1 and facilitate the loading of the reagent card 20.
[0070] In some embodiments, the side wall 132 of the magazine shell 1 is provided with a card slot 1321, and an IC information card is arranged in the card slot 1321. The IC information card stores information of the reagent card magazine 10.
[0071] By setting the card slot 1321, the installation position can be provided for the IC information card. By setting the IC information card, and the information of the reagent card magazine 10 stored therein, such as the detection items of the contained reagent card 20, can be recognized by the processor after the reagent card 20 is loaded into the detection instrument, so as to realize the information recognition of the reagent card magazine 10 and improve the automation of the medical detection equipment.
[0072] In some embodiments, the shell body 131 of the first shell 13 is provided with a plurality of reinforcing ribs 1311. Further, the reinforcing ribs 1311 are staggered. In this way, the strength of the magazine shell 1 can be improved, and the anti-deformation ability of the magazine shell 1 can be improved.
[0073] Compared with the reagent card magazine 10 in the related art, the reagent card magazine 10 provided by the embodiments of the present application has a simpler structure, is convenient and fast to load the card, has high card output stability, and can have good drying function.
[0074] According to the embodiments of the present application, on the other hand, a fluorescent immunoassay analyzer is also provided, which comprises the reagent card magazine 10 of any one of the above technical solutions.
[0075] Because the fluorescent immunoassay analyzer comprises the reagent card magazine 10, has the same effect as the reagent card magazine 10, and will not be described here.
[0076] Although the embodiments of the present application are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A reagent card magazine, characterized by, The application relates to a cartridge shell (1) for stacking reagent cards (20), wherein the lower part of the cartridge shell (1) is provided with a card outlet (11), and the bottom of the shell is provided with a driving groove (12), and an external card outlet driving member is adapted to extend into the stacking cavity through the driving groove (12) to drive the reagent card (20) at the bottom layer to be taken out through the card outlet (11); a counterweight (2) is arranged in the cartridge shell (1), and the counterweight (2) is movably arranged in the stacking cavity of the cartridge shell (1); a check structure is arranged between the cartridge shell (1) and the counterweight (2), and the check structure comprises a limiting step (31) arranged on the inner wall of the cartridge shell (1) and an elastic locking member (32) arranged on the counterweight (2); the elastic locking member (32) is unidirectionally locked with the limiting step (31), so that the counterweight (2) is adapted to move unidirectionally towards the driving groove (12). The cartridge shell (1) comprises a first shell (13) and a second shell (14), the first shell (13) comprises a shell body (131), a bottom wall (135), a top wall and two side walls (132) arranged on four side edges of the shell body (131), the first shell (13) and the second shell (14) are connected, and the stacking cavity is formed in the interior; the driving groove (12) is arranged on the bottom wall (135) of the first shell (13). The limiting step (31) extends along the stacking direction of the reagent cards (20), the limiting step (31) comprises multiple steps, the steps are inclined towards the driving groove (12), and the elastic locking member (32) is adapted to abut against any step.
2. The reagent card magazine of claim 1, wherein The shell body (131) of the first shell (13) and the second shell (14) are both provided with the limiting step (31).
3. The reagent card magazine of claim 2, wherein, The elastic locking member (32) comprises a pair of elastic sheets (321), one end of the pair of elastic sheets (321) is connected with the counterweight (2) respectively, the other end of the pair of elastic sheets (321) is arranged to be inclined towards the shell body (131) and the second shell (14) respectively, and the elastic locking member (32) is clamped with the limiting step (31) of the shell body (131) and the limiting step (31) of the second shell (14) simultaneously.
4. The reagent card magazine of claim 3, wherein, The shell body (131) of the first shell (13) is provided with the limiting step (31). The elastic locking member (32) comprises a barb (322), the barb (322) comprises a handle portion and a hook portion, the handle portion is connected with the counterweight (2), and the hook portion is buckled with the limiting step (31).
5. The cartridge of claim 3, wherein, The check structure is provided with at least two limiting steps (31) arranged in parallel, and the elastic locking member (32) is arranged correspondingly with the limiting step (31). Any side wall (132) of the first shell (13) is provided with a sandwich structure (133) for accommodating a drying agent, and the inner cavity of the sandwich structure (133) is communicated with the stacking cavity.
6. The reagent card magazine according to any one of claims 1 to 5, characterized in that, 7. The reagent card magazine of any one of claims 2 to 5, wherein, 8. The reagent card magazine according to any one of claims 1 to 5, characterized in that, The counterweight (2) comprises a counterweight shell (21) and a counterweight cover plate (22), which are connected and enclosed to form a containing groove for containing desiccant; the counterweight cover plate (22) is provided with a plurality of air holes (221) to communicate the containing groove with the containing cavity of the magazine shell (1).
9. The reagent card magazine according to any one of claims 1 to 5, characterized in that, The ejection port (11) is provided with a door (4), the side edge of the door (4) is rotationally connected with the magazine shell (1), and an elastic member is arranged between the door (4) and the shell, which is suitable for automatically closing the door (4).
10. A fluorescent immunoassay instrument, characterized by comprising: The reagent card magazine comprises the reagent card magazine according to any one of claims 1 to 9.