Reagent caching device based on RFID

Abstract

This utility model relates to the field of medical diagnostic analysis technology, specifically an RFID-based reagent buffer device. It includes a test tube holder, an electronic tag fixed to one side of the test tube holder, multiple RFID readers mounted on the inner wall of a temporary storage rack, an anti-precipitation component mounted on a cooling module, and a control circuit board fixed to the inner bottom of the temporary storage rack. When the electronic tag on the reagent rack is facing the RFID reader, the RFID reader can decode the electronic tag signal. The anti-precipitation component drives the reagent tubes containing magnetic beads / microspheres to rotate. The cooling module, the extraction motor, the RFID reader, and the anti-precipitation component are all electrically connected to the control circuit board. This utility model can automatically identify the reagent rack, achieving a higher degree of automation, and can also drive the reagent tubes containing magnetic beads / microspheres to rotate, ensuring that the concentration at the bottom of the reagent tube is consistent with the concentration in the middle of the reagent tube, thus guaranteeing the accuracy of the detection results after extraction by the detector's extraction head.

Description

Technical Field

[0001] This utility model relates to the field of medical diagnostic analysis technology, specifically to an RFID-based reagent buffering device. Background Technology

[0002] In an immunoassay, various biological reagents, such as antigens and antibodies, are mixed with the sample and then incubated by heating to allow the antigens and antibodies to bind. In chemiluminescent immunoassay, the magnetic microparticle complex, which combines antigens, antibodies, and magnetic microparticles, serves as a carrier of the target signal. During this type of chemiluminescent immunoassay, depending on the stage or detection requirements, reagent pipetting or temporary reagent storage is often necessary. Chinese patent CN220549490U discloses a reagent storage component for a testing instrument. It includes a storage rack, a storage cover, a light-shielding pull plate, a reagent rack body, a cooling module, and a pull plate motor. The storage rack has auxiliary vertical strips on its inner wall. The storage cover is fixed above the auxiliary vertical strips. The reagent rack body is mounted below the storage cover via the auxiliary vertical strips. The cooling module is located below the reagent rack body. One end of the light-shielding pull plate is inserted into the storage cover, and the other end is connected to a traction spring. The pull plate motor is fixed to the inner wall of the storage rack, and its output end is connected to and drives the light-shielding pull plate. This invention protects and shields the reagent tubes by pulling the movable light-shielding pull plate, ensuring that the reagents are not contaminated by light sources or other impurities during storage, thus improving the overall accuracy of the detection or readings. Furthermore, the addition of a cooling module protects the reagents' activity, ensuring reagent quality and improving detection efficiency and accuracy.

[0003] However, in practical applications, the above-mentioned reagent storage components still have the following shortcomings: First, after all the reagent racks are placed under the storage cover, the cooling module and the plate-pulling motor need to be manually controlled, resulting in a low degree of automation; Second, due to the complex composition of the reagents, each reagent rack contains a bottle of reagent containing magnetic beads / microspheres. Under the influence of gravity, the magnetic beads / microspheres will settle at the bottom of the reagent tube, resulting in a higher concentration at the bottom of the reagent tube than in the middle, which affects the accuracy of the detection results after the detector's extraction head extracts the reagent. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing an RFID-based reagent buffer device. This device can automatically identify the reagent rack and the types of reagents it contains, achieving a higher degree of automation. It can also drive the reagent tubes containing magnetic beads / microspheres to rotate, ensuring that the concentration at the bottom of the reagent tube is consistent with the concentration in the middle of the reagent tube, thus guaranteeing the accuracy of the detection results after extraction by the detector's extraction head.

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

[0006] A reagent buffering device based on RFID includes a temporary storage rack, a temporary storage cover, a light-shielding drawer, a reagent rack body, a cooling module, and a drawer motor. The inner wall of the temporary storage rack is provided with auxiliary vertical strips. The temporary storage cover is fixedly positioned above the auxiliary vertical strips. The reagent rack body is assembled below the temporary storage cover via the auxiliary vertical strips. The cooling module is located below the reagent rack body. One end of the light-shielding drawer is inserted into the temporary storage cover, and the other end is connected to a traction spring. The drawer motor is fixed to the inner wall of the temporary storage rack, and its output end is connected to and drives the light-shielding drawer. Its distinguishing feature is... The reagent rack includes: a test tube holder, an electronic tag fixed to one side of the test tube holder, multiple RFID readers set on the inner wall of the temporary storage rack, an anti-precipitation component installed on the refrigeration module, and a control circuit board fixed to the bottom inner side of the temporary storage rack. When the electronic tag on the reagent rack is facing the RFID reader, the RFID reader can decode the electronic tag signal. The anti-precipitation component is used to drive the reagent tubes containing magnetic beads / microspheres to rotate. The refrigeration module, the plate-pulling motor, the RFID reader, and the anti-precipitation component are all electrically connected to the control circuit board.

[0007] Furthermore, the temporary storage rack plate is provided with multiple support positions at equal intervals, each support position corresponding to a test tube support, and each RFID reader corresponding to a support position.

[0008] Furthermore, each of the test tube holders is provided with two fixed positions and one rotating position. The rotating position is used to place a reagent tube containing magnetic beads / microspheres, and the fixed position is used to place an ordinary reagent tube. When the electronic tag is facing the RFID reader, the rotating position is facing the output end of the anti-precipitation component.

[0009] Furthermore, a connecting ring is coaxially connected to the bottom of the reagent tube, and multiple protrusions for connecting the reagent tube are radially arranged on the connecting ring.

[0010] Furthermore, the anti-sinking component includes an anti-sinking motor fixed to the temporary storage rack plate, multiple rotating shafts rotatably connected to the temporary storage rack plate, a drive gear driven to the output shaft of the anti-sinking motor, a driven gear on the rotating shaft, the drive gear meshing with the driven gear, adjacent driven gears meshing with each other, a cylindrical connecting seat on the driven gear, an insertion hole adapted to the connecting ring on the connecting seat, and the insertion hole connected to the outer wall of the connecting seat through multiple slots.

[0011] Furthermore, after the test tube holder is placed in the holder position, the distance between the electronic tag and the RFID reader is no more than 10mm.

[0012] The beneficial effects of this utility model are:

[0013] In practical applications, the electronic tag is oriented towards the RFID reader, and the test tube holder is placed into the reagent rack. After the RFID reader decodes the electronic tag signal, it transmits the information to the control circuit board. The control circuit board then controls the cooling module, the extraction motor, and the anti-precipitation component. This invention can automatically identify the reagent rack, achieving a higher degree of automation. It can also drive the reagent tubes containing magnetic beads / microspheres to rotate, ensuring that the concentration at the bottom of the reagent tube is consistent with the concentration in the middle of the reagent tube, thus guaranteeing the accuracy of the detection results after extraction by the detector's extraction head. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 yes Figure 2 Cross-sectional view at point AA;

[0017] Figure 4 yes Figure 2 Cross-sectional view at point BB;

[0018] Figure 5 yes Figure 4 Enlarged view of part C in the middle

[0019] Figure 6 This is a schematic diagram of the test tube support structure in this utility model;

[0020] Reference numerals: Temporary storage rack 101; Temporary storage cover 102; Light-shielding drawer 103; Reagent rack 104; Refrigeration module 105; Test tube holder 201; Electronic tag 202; RFID reader 203; Control circuit board 204; Connecting ring 301; Protrusion 302; Anti-sinking motor 401; Rotating shaft 402; Drive gear 403; Driven gear 404; Connecting seat 405; Socket 406. Detailed Implementation

[0021] like Figure 1-6As shown, an RFID-based reagent buffer device includes a temporary storage rack 101, a temporary storage cover 102, a light-shielding drawer 103, a reagent rack body 104, a cooling module 105, and a drawer motor. The temporary storage rack 101 has auxiliary vertical bars on its inner wall. The temporary storage cover 102 is fixedly positioned above the auxiliary vertical bars. The reagent rack body 104 is mounted below the temporary storage cover 102 via the auxiliary vertical bars. The cooling module 105 is positioned below the reagent rack body 104. One end of the light-shielding drawer 103 is inserted into the temporary storage cover 102, and the other end is connected to a traction spring. The drawer motor is fixed to the inner wall of the temporary storage rack 101, and its output end is connected to and drives the light-shielding drawer 103. Its distinguishing feature is... The reagent rack 101 includes: a test tube holder 201, an electronic tag 202 fixed to one side of the test tube holder 201, multiple RFID readers 203 disposed on the inner wall of the temporary storage rack 101, an anti-precipitation component mounted on the cooling module 105, and a control circuit board 204 fixed to the inner bottom of the temporary storage rack 101. When the electronic tag 202 on the reagent rack 104 is facing the RFID reader 203, the RFID reader 203 can decode the signal of the electronic tag 202. The anti-precipitation component is used to drive the reagent tube containing magnetic beads / microspheres to rotate. The cooling module 105, the plate-pulling motor, the RFID reader 203, and the anti-precipitation component are all electrically connected to the control circuit board 204.

[0022] Orient the electronic tag 202 toward the RFID reader 203, place the test tube holder 201 into the reagent rack 104, and after the RFID reader 203 decodes the signal of the electronic tag 202, it transmits the information to the control circuit board 204. The control circuit board 204 controls the operation of the cooling module 105, the plate-pulling motor, and the anti-precipitation component. This invention can not only automatically identify the reagent rack 104, achieving a higher degree of automation, but also drive the reagent tubes containing magnetic beads / microspheres to rotate, ensuring that the concentration at the bottom of the reagent tube is consistent with the concentration in the middle of the reagent tube, thus guaranteeing the accuracy of the detection results after extraction by the detector's extraction head.

[0023] like Figure 1-6 As shown, multiple support positions are equidistantly arranged on the temporary storage rack 101, and each support position corresponds to a test tube holder 201. The RFID reader 203 also corresponds to a support position. In this embodiment, when all RFID readers 203 identify the electronic tag 202 on the support position, the control circuit board 204 controls the cooling module 105, the plate-pulling motor, and the anti-sedimentation component to work automatically, resulting in a high degree of automation.

[0024] like Figure 1-6As shown, each of the test tube holders 201 is provided with two fixed positions and one rotating position. The rotating position is used to place a reagent tube containing magnetic beads / microspheres, and the fixed position is used to place an ordinary reagent tube. When the electronic tag 202 is facing the RFID reader 203, the rotating position is facing the output end of the anti-precipitation component. In this embodiment, the electronic tag 202 is facing the RFID reader 203, and the anti-precipitation component prevents the magnetic beads / microspheres from precipitating by driving the reagent tube on the rotating position to rotate.

[0025] like Figure 1-6 As shown, a connecting ring 301 is coaxially connected to the bottom of the reagent tube, and multiple protrusions 302 connected to the reagent tube are radially arranged on the connecting ring 301; in this embodiment, the output end of the anti-precipitation component uses the connecting ring 301 and the protrusions 302 to hold the reagent tube in the rotating position to rotate.

[0026] like Figure 1-6 As shown, the anti-sedimentation assembly includes an anti-sedimentation motor 401 fixed on a temporary storage rack 101, and multiple rotating shafts 402 rotatably connected to the temporary storage rack 101. A drive gear 403 is driven and connected to the output shaft of the anti-sedimentation motor 401. Driven gears 404 are provided on the rotating shafts 402. The drive gear 403 meshes with the driven gears 404, and adjacent driven gears 404 mesh with each other. A cylindrical connecting seat 405 is provided on the driven gear 404, and an insertion hole 406 adapted to the connecting ring 301 is provided on the connecting seat 405. The outer wall of the connector 406 and the connecting seat 405 are connected by multiple slots. In this embodiment, the electronic tag 202 faces the RFID reader 203. During the process of placing the test tube holder 201 into the holder position, the protrusion 302 at the bottom of the reagent tube with magnetic beads / microspheres is inserted into the slot, and the connecting ring 301 is inserted into the socket 406. The reagent tube with magnetic beads / microspheres is slightly lifted. The anti-sinking motor 401 drives the driven gear 404 through the active gear 403. The driven gear 404 drives the driven gear 404, so that the reagent tube with magnetic beads / microspheres in each rotation position rotates synchronously to prevent the magnetic beads / microspheres inside from settling.

[0027] like Figure 1-6 As shown, after the test tube holder 201 is placed in the holder position, the distance between the electronic tag 202 and the RFID reader 203 is no greater than 10mm. In this embodiment, the RFID reader 203 can accurately read the information on the electronic tag 202 only when the distance between the electronic tag 202 and the RFID reader 203 is no greater than 10mm. On the one hand, the electronic tag 202 will be cheaper, and on the other hand, it can avoid reading errors of adjacent reagents.

[0028] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. An RFID-based reagent buffer device, comprising a temporary storage rack (101), a temporary storage cover (102), a light-shielding drawer (103), a reagent rack body (104), a cooling module (105), and a drawer motor, wherein the inner wall of the temporary storage rack (101) is provided with auxiliary vertical bars; the temporary storage cover (102) is fixedly placed above the auxiliary vertical bars; the reagent rack body (104) is assembled below the temporary storage cover (102) via the auxiliary vertical bars; the cooling module (105) is disposed below the reagent rack body (104); one end of the light-shielding drawer (103) is inserted into the temporary storage cover (102), and the other end is connected to a traction spring; the drawer motor is fixed on the inner wall of the temporary storage rack (101), and its output end is connected to and drives the light-shielding drawer (103), characterized in that: The test tube holder (201), an electronic tag (202) fixed on one side of the test tube holder (201), multiple RFID readers (203) set on the inner wall of the temporary storage rack (101), an anti-precipitation component installed on the refrigeration module (105), and a control circuit board (204) fixed on the inner bottom of the temporary storage rack (101). When the electronic tag (202) on the reagent rack (104) is facing the RFID reader (203), the RFID reader (203) can decode the signal of the electronic tag (202). The anti-precipitation component is used to drive the reagent tube containing magnetic beads / microspheres to rotate. The refrigeration module (105), the plate-pulling motor, the RFID reader (203) and the anti-precipitation component are all electrically connected to the control circuit board (204).

2. The RFID-based reagent caching device of claim 1, wherein, The temporary storage rack (101) is provided with multiple support positions at equal intervals, and each support position corresponds to a test tube support (201). The RFID reader (203) corresponds to each support position.

3. The RFID-based reagent cache of claim 2, wherein, Each of the test tube holders (201) is provided with two fixed positions and one rotating position. The rotating position is used to place a reagent tube containing magnetic beads / microspheres, and the fixed position is used to place an ordinary reagent tube. When the electronic tag (202) is facing the RFID reader (203), the rotating position is facing the output end of the anti-precipitation component.

4. The RFID-based reagent cache of claim 3, wherein, The bottom of the reagent tube is coaxially connected to a connecting ring (301), and the connecting ring (301) is radially provided with multiple protrusions (302) for connecting the reagent tube.

5. The RFID-based reagent cache of claim 4, wherein, The anti-sinking assembly includes an anti-sinking motor (401) fixed on a temporary storage rack plate (101) and multiple rotating shafts (402) rotatably connected to the temporary storage rack plate (101). A drive gear (403) is driven and connected to the output shaft of the anti-sinking motor (401). A driven gear (404) is provided on the rotating shaft (402). The drive gear (403) meshes with the driven gear (404), and adjacent driven gears (404) mesh with each other. A cylindrical connecting seat (405) is provided on the driven gear (404). A socket (406) adapted to the connecting ring (301) is provided on the connecting seat (405). The socket (406) is connected to the outer side wall of the connecting seat (405) through multiple slots.

6. The RFID-based reagent cache of claim 2, wherein, After the test tube holder (201) is placed in the holder position, the distance between the electronic tag (202) and the RFID reader (203) is no more than 10mm.

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