A plug-in reagent carrier tray device

Abstract

An insertable reagent carrier tray device includes a housing with a plurality of slots spaced circumferentially around the center of the housing. Each slot has an opening on the radial side of the housing away from the mounting hole for inserting a single card containing a reagent carrier. Each slot has a detection channel on the axial side of the housing. This invention enables independent insertion and removal of single cards, making operation convenient. It is suitable for retesting or testing multiple items, avoiding resource waste and reducing costs.

Description

Technical Field

[0001] This utility model relates to the field of reagent carriers, and in particular to a plug-in reagent carrier tray device. Background Technology

[0002] In the fields of biological detection and medical diagnostics, reagent carrier tray devices are key auxiliary equipment for scenarios involving multiple testing items. They need to be flexibly adaptable to different testing needs while balancing cost control and ease of use. Currently, most reagent carrier trays on the market adopt an integrated design with fixed item combinations. That is, the pre-set reagent carrier placement structure within the tray is only compatible with a few specific testing item combinations and cannot be flexibly adjusted according to actual testing needs. When there are fewer testing items or when testing items need to be changed, only the corresponding fixed combination of trays can be used, which easily leads to tray waste and increased testing costs.

[0003] In addition, although some trays attempt to support single-item testing, they lack a dedicated single-card tray structure. Single-item reagent cards must be placed directly into a general tray, which not only makes it difficult to ensure the stability of single-card placement, but also only allows a small number of single cards to be adapted for testing at one time, failing to meet the needs of simultaneous testing of multiple single cards.

[0004] Furthermore, in clinical testing, retesting, additional testing, and emergency testing scenarios are becoming increasingly frequent. With current technology, whether replacing the entire fixed combination tray or loosely placing a single reagent card into a universal container, the process is cumbersome, time-consuming, and carries the risk of cross-contamination or misoperation. Therefore, there is an urgent need for a device and method that can standardize the packaging of individual test items and integrate them into the testing platform conveniently, stably, and reliably, like a 'cassette tape,' to achieve truly on-demand testing and flexible combination. Utility Model Content

[0005] The main purpose of this invention is to overcome the shortcomings of existing trays that cannot meet the needs of multiple testing combinations and have poor versatility. This invention proposes a plug-in reagent carrier tray device to improve the practicality and applicability of the reagent carrier tray device in biological testing and medical diagnostic scenarios.

[0006] The present invention adopts the following technical solution:

[0007] A plug-in reagent carrier tray device includes a housing, the housing having a plurality of slots circumferentially spaced around the center of the housing, each slot having an opening on the radially away side of the housing for inserting a single card containing a reagent carrier, and each slot having a detection channel on the axial side of the housing.

[0008] The housing is provided with a plurality of partitions circumferentially spaced around the middle of the housing, and a slot is formed between two adjacent partitions; a window is provided on one side of the housing along the axial direction between two adjacent partitions, and the detection channel and the window are respectively located on both sides of the housing along the axial direction.

[0009] The slot extends radially or radially inclined along the housing; guide protrusions extending along the single card insertion direction are also provided on two opposite sides of the slot; guide grooves are provided on both sides of the single card width direction, and the guide grooves extend along the single card length direction to cooperate with the guide protrusions to achieve guidance when the single card is inserted into the slot.

[0010] The housing also has a protruding ring in the middle of the housing, which is located on the side of the slot near the middle of the housing to limit the insertion of the single card in the radial direction.

[0011] The single card has a shell, and the shell has an installation slot for installing the reagent carrier. The shell has holes on both sides in the thickness direction that are opposite to the reaction area of ​​the reagent carrier. When the single card is inserted into the slot, the holes are opposite to the detection channel.

[0012] The sidewall of the mounting groove opposite to the reaction area of ​​the reagent carrier is provided with a clearance groove, so that the reaction area of ​​the reagent carrier does not contact the sidewall of the mounting groove; a clamping member is also provided on the outer periphery of one of the holes inside the shell.

[0013] The housing has at least one positioning protrusion in the area where each slot is located; a positioning groove is provided on the side of the single card opposite to the positioning protrusion in the thickness direction, and the single card inserted into the slot is positioned by the positioning protrusion engaging with the positioning groove.

[0014] The housing includes a first shell, a second shell, a plurality of first fixing units circumferentially distributed around the middle of the housing and close to the middle of the housing to fix the first shell and the second shell, and a plurality of second fixing units circumferentially distributed around the middle of the housing and close to the radial outer periphery of the housing to fix the first shell and the second shell.

[0015] The first fixing unit and / or the second fixing unit adopt a fastener locking structure. The first shell and the second shell are respectively provided with a plurality of fixing holes circumferentially distributed around the middle of the shell. The first shell and the second shell are also provided with a plurality of fasteners, which are fixed by passing through the fixing holes on the first shell and the second shell.

[0016] The housing has an axially penetrating mounting hole in the middle, and the inner wall of the mounting hole is also provided with at least one recess extending radially; and / or the housing has an axially penetrating positioning hole near the mounting hole.

[0017] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0018] 1. In this utility model, the shell is the core, and the radially extending slots distributed around the middle of the shell, together with the detection channel on the axial side of the slot, not only realize the independent insertion and removal of a single card, making the operation simple; but also provide a matching structure for the placement of reagent carriers, observation and detection light penetration.

[0019] 2. In this utility model, slots are formed by the circumferentially spaced partitions inside the shell, resulting in a compact and well-formed structure that can effectively limit the lateral movement of a single card. At the same time, a window is formed on one side of the shell through the notch between adjacent partitions. The notch design ensures axial continuity while allowing the corresponding side of the single card to be partially exposed for easy observation.

[0020] 3. In this utility model, the guide protrusions on the two opposite sides of the slot are adapted to the guide groove in the width direction of the single card, forming a sliding fit when the single card is inserted, providing guidance for the insertion path, effectively avoiding offset and jamming, and improving assembly efficiency.

[0021] 4. In this utility model, a protruding ring is provided inside the housing, located on the side of the slot near the middle of the housing. After the card is inserted into the position, it abuts against the protruding ring to form an effective radial barrier. This can prevent the card from shifting towards the middle of the housing due to external force or vibration during the detection process, ensuring the radial position stability of the card in the slot and providing structural protection for detection accuracy.

[0022] 5. In this utility model, each card has its own independent outer shell, and the internal mounting slot is compatible with the reagent carrier, which can stably accommodate and fix the reagent carrier, preventing it from shifting during movement or insertion; at the same time, the holes on both sides of the thickness direction of the single card outer shell are aligned with the detection channel and window of the shell, ensuring that the detection light can smoothly reach the reaction area of ​​the reagent carrier and ensuring that the detection light path is unobstructed.

[0023] 6. In this utility model, the clearance groove on the side wall of the mounting groove keeps the reaction area of ​​the reagent carrier away from the groove wall, thus avoiding the risk of siphoning; the clamping component inside the single card shell applies thickness-direction pressure to the reaction area of ​​the reagent carrier, further fixing the reagent carrier. With the interlocking of the positioning protrusion and the positioning groove, the single card can be prevented from rotating circumferentially or moving axially, ensuring that all components are aligned for a long time and improving the reliability of the test results.

[0024] 7. In this utility model, a split shell is adopted, which is double fixed by the inner ring first fixing unit and the outer perimeter second fixing unit, taking into account both connection stability and structural rationality, avoiding loosening or deformation caused by insufficient strength of a single fixing area, and the fixing unit can be locked with fasteners to strengthen the connection strength.

[0025] 8. In this utility model, the recessed part on the inner wall of the mounting hole and the positioning hole on the shell respectively realize the quick positioning of the pick-up and put-out angle and the precise assembly of the equipment, reducing the difficulty of operation; the single card can be flexibly added or removed as needed, without the need to replace the whole tray, reducing idle waste and reducing testing costs.

[0026] 9. In this utility model, an axially penetrating positioning hole is provided near the mounting hole of the shell, which can be used with the positioning column of the testing equipment to achieve positioning and installation; the recessed part of the mounting hole can also help the operator quickly find the correct pick-up and put-down angle, reducing the difficulty of operation; this utility model is suitable for retesting or testing of several items. During retesting, the corresponding single card can be directly inserted. During testing of several items, cards can be inserted as needed to achieve combination, realizing the plug-and-play operation of single cards, simplifying the workflow, effectively avoiding the possibility of contamination and misplacement of reagent carriers by manual replacement, making the operation convenient and avoiding resource waste and reducing costs. Attached Figure Description

[0027] Figure 1 This is a diagram of the first shell structure in this embodiment;

[0028] Figure 2 This is a perspective view of the first shell in this embodiment;

[0029] Figure 3 This is a diagram of the second shell structure in this embodiment;

[0030] Figure 4 This is a perspective view of the second shell in this embodiment;

[0031] Figure 5 This is a front view of the tray structure in this embodiment;

[0032] Figure 6 This is a structural diagram of the back of the tray in this embodiment;

[0033] Figure 7 This is a diagram of the lower shell structure of a single card;

[0034] Figure 8 This is a diagram of the upper shell structure of a single card;

[0035] Figure 9 This is a structural diagram of a single card;

[0036] Figure 10 This is a cross-sectional view of a single card.

[0037] Figure 11 This is a schematic diagram of a single-card insertion tray device;

[0038] Figure 12 for Figure 10 Exploded view;

[0039] Figure 13 for Figure 5 BB-direction sectional view;

[0040] Figure 14 for Figure 5 CC-direction sectional view;

[0041] in:

[0042] 10. Housing; 10a. First housing; 10b. Second housing; 11. Mounting hole; 12. Slot; 13. Detection channel; 14. Window; 15. First fixing unit; 16. Second fixing unit; 17. Reinforcing rib; 18. Partition; 21. Recess; 22. Positioning hole; 23. Fixing hole; 24. Fastener; 25. First rib; 25a. First groove; 26. Second rib; 26a. Second groove; 27. Guide protrusion; 28. Guide groove; 29. ​​Protruding ring; 30. Single clip; 30a. Upper housing; 30b. Lower housing; 31. Mounting groove; 31a. Groove; 32. Hole; 33. Positioning protrusion; 34. Positioning groove; 35. Spring; 36. Reagent carrier; 37. Clamping element.

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0044] The present invention will be further described below through specific embodiments.

[0045] See Figures 1 to 14 A plug-in reagent carrier tray device includes a housing 10 with an axially penetrating mounting hole 11 for detachably mounting the tray device to a detection device. The mounting hole 11 is located in the middle of the housing 10. The housing 10 is a hollow structure with an internal cavity. Several slots 12 are provided within the housing 10, spaced circumferentially around the middle of the housing 10, i.e., around the mounting hole 11. The slots 12 extend radially along the housing or at an angle to the radial direction. An opening is provided on the radial side of the housing 10 away from the mounting hole 11 for inserting a single card 30 containing a reagent carrier. The shape of the single card 30 is adapted to the slot 12 to ensure stable positioning after insertion. A detection channel 13 is provided on the axially upward side of the housing 12. The detection channel 13 may or may not be penetrating the slot 12. The axial direction of the housing refers to the direction perpendicular to the radial plane of the housing.

[0046] In this embodiment, the reagent carrier 36 is a carrier for holding the test reagents, which can be a reagent strip, reagent card, or reagent sheet, etc., while the single card 30 is used to accommodate and position the reagent carrier 36. The circumferential distribution of the slots 12 around the mounting holes 11 in the middle of the housing 10 ensures that the insertion direction of the single card 30 is consistent with the radial direction of the housing 10 or has an angle with the radial direction of the housing 10. Combined with the outer opening design, the single card 30 can be placed and removed without avoiding other parts, making the operation path simpler. The number of single cards 30 can be flexibly increased or decreased according to the number of test items, without the need to replace the entire tray for different project combinations, improving the versatility of the device and reducing tray idle waste and test costs.

[0047] To further improve the positioning and insertion stability of the slot 12 for the single card 30, a number of partitions 18 are circumferentially spaced around the mounting hole 11 inside the housing 10, and the gap between two adjacent partitions 18 forms the aforementioned slot 12. The partitions 18 are located between two adjacent slots 12. A window 14 is provided on one side of the housing along the axial direction between two adjacent partitions 18. The detection channel 13 and the window 14 are opposite each other on both sides of the housing 10 along the axial direction. The window 14 and the detection channel 13 are located on different sides of the single card 30. This notch extends from the outer radial direction of the housing towards the center of the housing. The edges of the notch are rounded to prevent scratching the single card 30 when inserting it.

[0048] See Figure 2 , 11 To further improve the accuracy and smoothness of inserting the single card 30 into the slot 12, guide protrusions 27 extending along the insertion direction of the single card 30 are provided on the opposite sides of the two adjacent partitions 18 (i.e., the sides forming the inner wall of the slot 12). Correspondingly, guide grooves 28 are provided on both sides of the single card 30 in the width direction, and the guide grooves 28 extend along the length direction of the single card 30. When the single card 30 is inserted from the open end of the slot 12, the guide grooves 28 on both sides of the single card 30 will form a sliding engagement with the guide protrusions 27 on the partitions 18. The guide protrusions 27 can be embedded in the guide grooves 28, providing guidance for the insertion path of the single card 30, effectively avoiding deviation or jamming during the insertion of the single card 30, ensuring that the single card 30 can be quickly and accurately inserted into the preset position of the slot 12, further improving the convenience of operation and assembly efficiency.

[0049] In addition, the guide groove 28 is located on one side of the thickness direction of the single card 30 to prevent mis-insertion. The two can only cooperate smoothly when the guide groove 28 of the single card 30 is aligned with the guide protrusion 27. If the single card 30 is in the wrong direction, it cannot be inserted due to structural interference, thereby avoiding mis-insertion of the single card 30.

[0050] In this embodiment, a protruding ring 29 is also provided around the outer periphery of the mounting hole 11 inside the housing 10. The protruding ring 29 is located on the side of the slot 12 near the mounting hole 11. When the single card 30 is inserted from the opening end of the slot 12 and is in place, the protruding ring 29 can abut against the side of the single card 30 near the mounting hole 11, thereby effectively blocking the single card 30 in the radial direction, preventing the single card 30 from shifting towards the mounting hole 11 due to external force or vibration during the detection operation, and ensuring the positional stability of the single card 30 in the slot 12.

[0051] See Figures 7-10 In this embodiment, the adaptable single card 30 adopts a modular design, with its own independent outer shell. The outer shell is divided into an upper shell 30a and a lower shell 30b that snap together. The upper shell 30a and the lower shell 30b have grooves 31a inside, and the two grooves 31a form an installation groove 31 that is adapted to the specifications of the reagent carrier 36. The installation groove 31 is used to stably accommodate and fix the reagent carrier 36, preventing the reagent carrier 36 from shifting during the movement of the single card 30 or during insertion into the slot 12. At the same time, holes 32 are also provided on both sides of the outer shell of the single card 30 in the thickness direction. When the single card 30 is inserted into the slot 12 of the first shell 10a and is in place, the holes 32 on both sides of the outer shell of the single card 30 will align with the detection channel 13 and window 14 on the shell 10.

[0052] Furthermore, the sidewalls of the mounting groove 31 opposite to the reaction area of ​​the reagent carrier 36 are provided with clearance grooves, that is, the clearance grooves are located on the two opposite sides of the groove 31a of the lower shell 30b, so that the reaction area of ​​the reagent carrier 36 and the sidewall of the mounting groove 31 are spaced apart and do not contact each other, which can prevent the liquid from spreading to the surface of the sidewall of the mounting groove 31 due to capillary action and avoid the risk of siphoning.

[0053] A clamping member 37 is also provided on the outer periphery of the hole 32 opposite to the window 14 inside the outer shell. The clamping member 37 is formed on the outer periphery of the hole 32 in the upper shell 30a. The clamping member 37 is a protruding structure that protrudes from the side wall around the window 14 but does not obstruct the window 14. The clamping member 37 is used to apply pressure in the thickness direction to the reaction area of ​​the reagent carrier 36 to fix the reagent carrier 36 in the thickness direction of the outer shell. The shape of the clamping member 37 is adapted to the contour of the window 14. It can be formed by a single annular rib or by multiple ribs distributed around the circumference of the window 14.

[0054] The housing 10 is divided into a first housing 10a and a second housing 10b having mounting holes 11 and being connected. The housing 10 is also provided with a plurality of first fixing units 15 that are circumferentially distributed around the mounting holes 11 and close to the mounting holes 11 to fix the first housing 10a and the second housing 10b, and a plurality of second fixing units 16 that are circumferentially distributed around the mounting holes 11 and close to the radial outer periphery of the housing 10 to fix the first housing 10a and the second housing 10b. The inner ring of the housing 10 is fixed by the first fixing units 15, and the outer side of the housing 10 is fixed by the second fixing units 16.

[0055] The tray device of this embodiment uses a split-type housing 10 with an axially penetrating mounting hole 11 in the center as its core. A cooperative structure for placing and observing the reagent carrier 36 is formed by the first groove 25a of the first housing 10a and the detection channel 13, and the second groove 26a and corresponding window 14 of the second housing 10b. Simultaneously, a first fixing unit 15 near the mounting hole 11 and a second fixing unit 16 near the outer periphery of the housing 10 respectively achieve a fixed connection between the inner and outer rings of the housing 10. The use of a split-type housing 10 with inner and outer double fixing units ensures the overall stability of the housing 10 connection and avoids loosening or deformation of the housing 10 due to insufficient strength in a single fixing area. In this embodiment, the first fixing unit 15 or the second fixing unit 16 can adopt a snap-fit ​​or fastener locking structure. For snap-fit, a snap strip and a snap groove can be used to achieve detachable fixing. When fasteners are used for securing, a plurality of fixing holes 23 are respectively provided on the first shell 10a and the second shell 10b. The fixing holes 23 are circumferentially spaced around the mounting hole 11 in the middle of the shell 10, and the fixing holes 23 on the first shell 10a and the fixing holes 23 on the second shell 10b correspond one-to-one in the axial direction. At the same time, the fixing unit also includes a plurality of matching fasteners 24, which are fixed by passing through the fixing holes 23 on the first shell 10a and the second shell 10b. The fasteners 24 can further enhance the connection strength of the fixing unit.

[0056] The first shell 10a has several first ribs 25 distributed circumferentially around the mounting hole 11. The shape of the first ribs 25 can be V-shaped, U-shaped, etc., and can be set according to the actual situation. Two adjacent first ribs 25 form a first groove 25a. An axially penetrating detection channel 13 is provided in the first groove 25a. The first groove 25a has an opening at the end that is radially away from the mounting hole 11. To further improve the convenience of picking up and putting down the single card 30, the radially outer side of the first groove 25a is set into a radially concave arc shape. This arc design allows the corresponding side of the single card 30 to be partially exposed in the slot 12 after it is inserted into the slot 12, avoiding the difficulty of grasping the single card 30 after it is fully embedded, and making it convenient for operators to quickly insert or remove the single card 30.

[0057] The second shell 10b has a plurality of second ribs 26 distributed circumferentially around the mounting hole 11. The shape and position of the plurality of second ribs 26 correspond one-to-one with the shape and position of the plurality of first ribs 25, forming a partition 18. The shape of the second ribs 26 can be V-shaped, U-shaped, etc., and can be set according to the actual situation. Two adjacent second ribs 26 form a second groove 26a. The plurality of second grooves 26a correspond one-to-one with the plurality of first grooves 25a, forming a slot 12. The plurality of second grooves 26a have windows 14 corresponding to the detection channels 13 on the first grooves 25a. The area of ​​the window 14 is larger than the area of ​​the detection channels 13. The window 14 is set in the form of a notch, so that the corresponding side of the single card 30 is partially exposed.

[0058] Furthermore, a first fixing unit 15 is formed between the protruding ring 29 and the mounting hole 11. Adaptive fixing structures (such as snap strips and slots or fasteners 24 and fixing holes 23) are arranged using the spatial layout of this area. This layout design makes full use of the inner space of the housing 10 and avoids interference between the fixing unit and functional structures such as the slot 12 and the protruding ring 29.

[0059] The second fixing unit 16, used to fix the outer peripheral areas of the first shell 10a and the second shell 10b, is directly formed at the corresponding positions of the first rib 25 and the second rib 26. Specifically, the middle part of the first rib 25 and the second rib 26 is set as a hollow structure. On the side of the first rib 25 facing the second shell 10b and the side of the second rib 26 facing the first shell 10a, respectively, there are matching snap-fit ​​structures or fastener locking structures. When the first rib 25 and the second rib 26 are engaged by abutting or nesting, the fixing structures on the two are simultaneously connected to form the second fixing unit 16.

[0060] In addition to detachable fixing methods such as snap-fit ​​structures and fastener locking structures, the first fixing unit 15 (near the mounting hole 11, used to fix the inner ring of the housing 10) and the second fixing unit 16 (near the outer periphery of the housing 10, used to fix the outer side of the housing 10) can also be fixedly connected to the first housing 10a and the second housing 10b by welding. Specifically, for the first fixing unit 15, welding processes (such as ultrasonic welding, laser welding, etc.) can be used in the corresponding connection areas of the mounting holes 11 of the first housing 10a and the second housing 10b to form a strong welded joint at the connection part of the inner rings of the two housings; similarly, for the second fixing unit 16, welding can be used to fix it in the corresponding connection areas of the outer periphery of the first housing 10a and the second housing 10b.

[0061] Multiple reinforcing ribs 17 may also be provided on the first shell 10a and the second shell 10b of the housing 10. The reinforcing ribs 17 may be located at appropriate positions on the housing 10, such as between the mounting hole 11 and the protruding ring 29, to further disperse the external forces on the housing 10 during installation and use, effectively preventing the housing 10 from deforming or breaking due to uneven force, thereby significantly increasing the overall strength of the housing 10.

[0062] To further improve the positioning accuracy of the single card 30 after insertion into the slot 12 and to prevent circumferential or axial displacement of the single card 30 during the detection process, the second shell 10b is provided with at least one positioning protrusion 33 in the area corresponding to each slot 12 (i.e., the side opposite to the thickness direction of the single card 30). Correspondingly, a positioning groove 34 is provided on the side of the single card 30 facing the second shell 10b in the thickness direction. The size and shape of the positioning groove 34 match the positioning protrusion 33 of the second shell 10b. The number of positioning protrusions 33 corresponding to each slot 12 is one, two, or even more; two are shown as an example in the figure. The number of positioning grooves 34 on the single card 30 may be the same as or different from the number of positioning protrusions 33. In the figure, the number of positioning protrusions 33 is set to two groups distributed along the length direction, with two in each group and arranged along the width direction. Thus, both ends of the single card 30 in the length direction can be inserted into the slot 12 for positioning.

[0063] When the single card 30 is inserted into the slot 12 of the first shell 10a and in place, and the first shell 10a and the second shell 10b are assembled, the positioning protrusion 33 on the second shell 10b will engage with the positioning groove 34 of the single card 30. Through the engagement of the protrusion and the groove, effective positioning can be formed from the side of the single card 30 toward the second shell 10b. This not only supplements the stability of radial limiting, but also prevents the single card 30 from rotating in the circumferential direction or moving in the axial direction, ensuring that the hole 32 of the single card 30 is always aligned with the detection channel 13 of the first shell 10a and the window 14 of the second shell 10b.

[0064] In practical applications, to improve the flexibility of the engagement between the positioning protrusion 33 and the positioning groove 34 of the single card 30, the positioning protrusion 33 can also be designed as a flexible structure. Specifically, in the area where the positioning protrusion 33 is located on the second shell 10b, a spring piece 35 structure, separate from the surrounding shell portion, is processed using a cutting process. This allows the positioning protrusion 33 to be integrally formed at the free end of the spring piece 35, while the root of the spring piece 35 remains connected to the main body of the second shell 10b. The remaining sides are cut to create a space that can elastically deform, thus giving the spring piece 35 a certain degree of elasticity, and consequently, allowing the positioning protrusion 33 on it to have a margin of elastic movement.

[0065] The advantage of this flexible design is that when the single card 30 is inserted into the slot 12 and contacts the positioning protrusion 33, the spring 35 can adapt to the insertion path of the single card 30 through slight deformation, avoiding jamming or scraping between the rigid protrusion and the single card 30; after the single card 30 is in place, the spring 35 restores its deformation, driving the positioning protrusion 33 to accurately engage with the positioning groove 34, which not only ensures the positioning effect, but also reduces the operating resistance when inserting the single card 30, and at the same time reduces the wear caused by the long-term cooperation between the positioning protrusion 33 and the single card 30, thus extending the service life of the structure.

[0066] The inner wall of the mounting hole 11 is also provided with at least one radially extending recess 21, which can engage with the corresponding protrusion on the testing equipment. On the one hand, through the positioning effect of the recess 21 and the corresponding protrusion on the equipment, the operator can more easily find the installation or disassembly angle when picking up and placing the tray device, reducing the difficulty of the operation. On the other hand, the small gap between the recess 21 and the corresponding protrusion on the equipment can further improve the coaxiality and connection tightness of the tray device and the testing equipment after installation, and prevent the tray device from radially shaking due to excessive gap during the testing process, thereby ensuring the stability of the testing environment of the reagent carrier 36. The number of recesses 21 can be one, two or more, and two are shown as an example in the figure. In this embodiment, an axially penetrating positioning hole 22 is provided on the first shell 10a and the second shell 10b near the mounting hole 11, which is used to engage with the positioning post corresponding to the tray device on the testing equipment. When the tray device is assembled to the testing equipment, the positioning post of the corresponding part on the equipment can be inserted into the positioning hole 22 to realize the positioning and installation of the tray device on the testing equipment.

[0067] In this embodiment, the housing 10 is a reusable housing 10. The first housing 10a is made of 6061 aluminum alloy or zinc alloy, etc., and the second housing 10b is made of ABS material. The materials used for the first housing 10a and the second housing 10b are not limited to these, and other materials can also be used. The single card 30 is set to a single-use form, and the material can be HIPS or ABS, etc. The number of slots 12 in the housing 10 can be set according to the requirements, such as 8-12, etc., and 9 is used as an example in the figure. In use, the reagent carrier 36 is pre-loaded into the single card 30, and then the single card 30 containing the reagent carrier 36 is inserted into the slot 12 of the tray housing 10. Align the single card 30 with the opening of the slot 12 on the tray housing 10 and slowly insert it along the slot 12. At this time, the guide protrusion 27 on the inner wall of the slot 12 will be embedded into the guide groove 28 of the single card 30 to avoid displacement during the insertion process until the side of the single card 30 near the mounting hole 11 abuts against the protruding ring 29 of the first shell 10a. At the same time, the positioning protrusion 33 of the second shell 10b (the elastic structure can be slightly deformed to adapt) is engaged in the positioning groove 34 of the single card 30 to complete the positioning of the single card 30.

[0068] When using the device of this embodiment for reagent detection, the specific operation is as follows:

[0069] Multiple reagent carriers 36 are prepared for a preset combination of items, each carrying a reagent that matches the preset combination of items. Each single card 30 is inserted into the corresponding slot 12 through the opening of the slot 12, so that the reaction area of ​​each reagent carrier 36 is opposite to the corresponding window 14 and detection channel 13. When testing the sample to be tested, a detection stimulus is applied to the reaction area of ​​the reagent carrier through the detection channel 13, and the response signal from the reaction area is obtained through the detection channel for processing to obtain detection data that matches the preset detection item or retest item.

[0070] In this embodiment, the detection stimulus can be selected according to the detection principle and the requirements of the preset item combination, including but not limited to optical signals, thermal signals, electrical signals, chemical signals, magnetic signals, etc. Taking optical signals as the detection stimulus as an example, the detection device can emit light of a specific wavelength to the reaction area of ​​the reagent carrier 36 through the detection channel 13. After the reagent carried in the reaction area reacts specifically with the sample to be detected, it will produce optical responses such as fluorescence, absorbance changes or scattered light. The optical response signals are received and processed through the detection channel 13 to provide a reliable basis for the analysis and processing of subsequent detection data.

[0071] After testing, the used single card 30 can be removed from the slot 12 and discarded. The housing 10 can be reused for subsequent tests. This testing method relies on the structural advantages of the tray device. On the one hand, the independent loading and unloading of the single card 30 achieves isolated management of the reagent carrier 36, avoiding the risk of cross-contamination from the operational process and improving the reliability of the test results. On the other hand, the guiding and positioning structure formed by the guide protrusion 27 and guide groove 28, and the positioning protrusion 33 and positioning groove 34 ensures that the reaction area of ​​the reagent carrier 36 is always aligned with the detection light path, reducing the detection error caused by assembly deviation. At the same time, the flexible addition and removal of the single card 30 and the reusability of the housing 10 allow the method to be quickly adapted to different test item combinations without replacing the entire tray, shortening the test preparation time.

[0072] In this utility model, the terms "first," "second," and "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper," "lower," "left," "right," "front," and "rear" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model, and does not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0073] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0074] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A plug-in reagent carrier tray device, comprising a housing, characterized in that, The housing is provided with a plurality of slots circumferentially spaced around the middle of the housing. The slots have openings on the radial side of the housing away from the middle for inserting a single card containing a reagent carrier. The slots have detection channels on the axial side of the housing.

2. The insert-type reagent carrier tray device as described in claim 1, characterized in that, The housing is provided with a plurality of partitions circumferentially spaced around the middle of the housing, and a slot is formed between two adjacent partitions; a window is provided on one side of the housing along the axial direction between two adjacent partitions, and the detection channel and the window are respectively located on both sides of the housing along the axial direction.

3. The insert-type reagent carrier tray device as described in claim 1, characterized in that, The slot extends radially or radially inclined along the housing; guide protrusions extending along the single card insertion direction are also provided on two opposite sides of the slot; guide grooves are provided on both sides of the single card width direction, and the guide grooves extend along the single card length direction to cooperate with the guide protrusions to achieve guidance when the single card is inserted into the slot.

4. The insert-type reagent carrier tray device as described in claim 1, characterized in that, The housing also has a protruding ring in the middle of the housing, which is located on the side of the slot near the middle of the housing to limit the insertion of the single card in the radial direction.

5. The insert-type reagent carrier tray device as described in claim 1, characterized in that, The single card has a shell, and the shell has an installation slot for installing the reagent carrier. The shell has holes on both sides in the thickness direction that are opposite to the reaction area of ​​the reagent carrier. When the single card is inserted into the slot, the holes are opposite to the detection channel.

6. The insert-type reagent carrier tray device as described in claim 5, characterized in that, The sidewall of the mounting groove opposite to the reaction area of ​​the reagent carrier is provided with a clearance groove, so that the reaction area of ​​the reagent carrier does not contact the sidewall of the mounting groove; a clamping member is also provided on the outer periphery of one of the holes inside the shell.

7. The insert-type reagent carrier tray device as described in claim 1, characterized in that, The housing has at least one positioning protrusion in the area where each slot is located; a positioning groove is provided on the side of the single card opposite to the positioning protrusion in the thickness direction, and the single card inserted into the slot is positioned by the positioning protrusion engaging with the positioning groove.

8. The insert-type reagent carrier tray device as described in claim 1, characterized in that, The housing includes a first shell, a second shell, a plurality of first fixing units circumferentially distributed around the middle of the housing and close to the middle of the housing to fix the first shell and the second shell, and a plurality of second fixing units circumferentially distributed around the middle of the housing and close to the radial outer periphery of the housing to fix the first shell and the second shell.

9. The insert-type reagent carrier tray device as described in claim 8, characterized in that, The first fixing unit and / or the second fixing unit adopt a fastener locking structure. The first shell and the second shell are respectively provided with a plurality of fixing holes circumferentially distributed around the middle of the shell. The first shell and the second shell are also provided with a plurality of fasteners, which are fixed by passing through the fixing holes on the first shell and the second shell.

10. The insert-type reagent carrier tray device as described in claim 1, characterized in that, The housing has an axially penetrating mounting hole in the middle, and the inner wall of the mounting hole is also provided with at least one recess extending radially; and / or the housing has an axially penetrating positioning hole near the mounting hole.

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