Kit detection sealing structure and detector

Abstract

The utility model discloses a kit detection sealing structure and a detector, and belongs to the technical field of biological in-vitro detection, the kit detection sealing structure comprises a kit, a sealing piece, a limiting piece, a detection device and a reagent bin, the sealing piece is fixed at the bottom of the reagent bin through the limiting piece, the detection device is arranged below the limiting piece, and the detection device is arranged below the limiting piece. The kit is connected into the reagent bin in a pluggable mode, an electrode needle is arranged at the bottom of the kit and penetrates through the sealing piece to make contact with the detection device, the side wall of the penetrating electrode needle is extruded and sealed through the sealing piece, and liquid is prevented from leaking along a gap generated by the electrode needle. And an effect of protecting the electronic elements in the detection device is achieved.

Description

Technical Field

[0001] This utility model relates to the field of in vitro biological detection technology, specifically to a reagent kit detection sealing structure and detection instrument. Background Technology

[0002] When performing liquid sampling and testing, the collected samples are stored in the reagent kit. During testing, the reagent kit is installed in the corresponding detector for result analysis. Reagent testing has the advantages of convenient operation, less susceptibility to environmental limitations, and short result acquisition time. However, when the existing reagent kit is installed in the detector for automatic testing, the sample liquid in the reagent kit is prone to leakage during repeated insertion and removal operations. The leaked liquid can easily seep into the detector and corrode the detection circuit, causing the detector to malfunction. Therefore, it is now necessary to add a sealing structure to the detection chamber of the reagent kit and the detector to prevent the sample liquid in the reagent kit box from leaking out.

[0003] A patent application with publication number CN116620723A discloses a sealed reagent kit for detecting equine infectious anemia virus p26 protein. The kit utilizes a cooling component to cool the reagents before refrigeration, thus improving their preservation. A heat-insulating component allows the kit to be heated before use to restore room temperature, accelerating the process and reducing waiting time, thereby improving detection efficiency. However, the design of fixing the first and second reagent bottles within the reagent placement chamber, along with the elastic sealing structure at the bottle openings, fails to protect the reagent kit, which comes into contact with the detector. Utility Model Content

[0004] One of the purposes of this invention is to provide a sealed structure for reagent kit testing, which solves the problem that existing reagent kits are prone to leakage at the contact points with the outside, leading to contamination and damage to the detection circuit.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0006] The reagent kit includes a sealed structure comprising a reagent kit, a seal, a limiting member, a detection device, and a reagent compartment. The seal is fixed to the bottom of the reagent compartment by the limiting member. The detection device is disposed below the limiting member. The reagent kit is plugged into the reagent compartment. An electrode needle is provided at the bottom of the reagent kit. The electrode needle penetrates the seal and contacts the detection device. The seal compresses and seals the side wall of the penetrated electrode needle to prevent liquid leakage along the gap created by the electrode needle, thereby protecting the electronic components inside the detection device.

[0007] Furthermore, the sealing element is provided with a recess, a needle groove, and a trigger part. The recess is disposed on the end face of the sealing element, the needle groove is disposed on the side of the recess, and the trigger part is elastically connected to the inner bottom wall of the recess for sealing the electrode needle that passes through.

[0008] Furthermore, the sealing element is also provided with a limiting groove and a limiting block. The limiting groove is provided on both side walls of the sealing element, and the limiting block is provided on the side of the recess near the edge of the sealing element, which is used to limit the deformation and displacement of the sealing element under pressure.

[0009] Furthermore, the seal is also provided with a limiting notch, which is located on the upper edge of the recess to prevent the center of the seal from shifting.

[0010] Preferably, the needle groove is configured as a recess protruding from the end face of the seal, the needle groove is made of a flexible material, the electrode needle penetrates the bottom of the needle groove, and the side wall of the electrode needle abuts against the needle groove to seal the gap of the electrode needle.

[0011] Preferably, a reinforcing block is provided on the top of the trigger part to extend the service life of the trigger part.

[0012] As a better option, the reagent compartment is provided with a clearance space and a pinhole. The clearance space is located on the inner bottom wall of the reagent compartment, and the pinhole is configured to penetrate the bottom wall of the reagent compartment for buffering leaked liquid and positioning the reagent kit.

[0013] Preferably, the limiting member includes a first through groove and a second through groove, both of which are configured to penetrate the limiting member. The recessed part is inserted into the first through groove, the needle groove is opposite to the second through groove, and the detection device is provided with a detection groove, which falls into the second through groove to separate the detection position and the trigger part and prevent mutual interference.

[0014] Preferably, the bottom of the reagent compartment is provided with a first positioning groove and a second positioning groove, the recessed part is inserted into the first positioning groove, and the trigger part is inserted into the second positioning groove, for positioning and limiting the seal.

[0015] The second objective of this invention is to provide a detection instrument that solves the problem of liquid leakage easily occurring at the contact point between the existing detection instrument and the reagent kit.

[0016] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0017] A testing instrument includes a reagent kit detection sealing structure to prevent the reagent kit from leaking into the testing instrument.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) The test kit has a sealing structure with a sealing element and a limiting element between the test kit and the test device. The sealing element is fixed to the bottom of the test chamber by the limiting element. After the test kit is inserted into the test chamber, the sealing element can prevent hydraulic leakage between the test kit and the test chamber. The electrode needle on the test kit penetrates the sealing element and then connects to the test device. The sealing element abuts against the side wall of the electrode needle, so the liquid in the test kit cannot leak along the electrode needle, preventing the liquid from penetrating into the test device and corroding the circuit, causing the tester to malfunction.

[0020] (2) The sealing component of the test kit detection sealing structure is provided with a recess, a needle groove and a trigger part. The recess is used to position the test kit and wrap the test kit. The needle groove is opposite to the electrode needle. After the electrode needle is inserted into the needle groove, it is wrapped, thereby playing a sealing role. The trigger part is used to detect the position of the test kit. The position signal is transmitted through the up and down elastic movement. The trigger part and the recess are integrated to prevent the detection liquid from penetrating.

[0021] (3) The test kit detects that the sealing structure has a limiting groove, a limiting block and a limiting notch in the sealing element. The limiting groove and the limiting block are used to fix the sealing element, and the limiting notch is used to prevent the recess and the needle groove from shifting, and to prevent the sealing element from deforming and shifting after being compressed, which would lead to leakage. Attached Figure Description

[0022] Figure 1 An exploded view of the sealing structure of the reagent kit provided by this utility model;

[0023] Figure 2 An isometric view of the sealing structure of the reagent kit provided by this utility model;

[0024] Figure 3 A front view of the sealing structure of the reagent kit provided by this utility model;

[0025] Figure 4 A side view of the sealing structure of the reagent kit provided by this utility model;

[0026] Figure 5 for Figure 4 Cross-sectional view along the upper AA line;

[0027] Figure 6 An isometric view of the sealing element provided by this utility model;

[0028] Figure 7 A front view of the sealing element provided by this utility model;

[0029] Figure 8 A side view of the sealing element provided by this utility model;

[0030] Figure 9 A top view of the sealing element provided by this utility model;

[0031] Figure 10 for Figure 8 The section line along the upper edge of BB;

[0032] Figure 11 An isometric view of the reagent compartment provided by this utility model;

[0033] Figure 12 A bottom view of the reagent compartment provided by this utility model;

[0034] Figure 13 A top view of the reagent compartment provided by this utility model;

[0035] Figure 14 Exploded view of the detector provided by this utility model;

[0036] Figure 15 An isometric view of the detector provided by this utility model;

[0037] Figure 16 A front view of the detector provided by this utility model;

[0038] Figure 17 for Figure 16 Cross-sectional view of the upper CC edge.

[0039] Figure label:

[0040] 1. Reagent kit; 11. Electrode needle; 12. Trigger block; 2. Seal; 21. Recess; 22. Trigger; 23. Limiting groove; 24. Limiting block; 25. Needle groove; 26. Reinforcing block; 27. Limiting notch; 3. Limiting component; 31. First through groove; 32. Second through groove; 4. Detection device; 41. Detection electrode; 42. Switch; 5. Reagent compartment; 51. Clearance; 52. Pinhole; 53. First positioning groove; 54. Second positioning groove; 6. Gas delivery device; 7. Machine cover; 8. Outer shell; 81. Base plate. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0042] Example 1

[0043] like Figures 1-17 As shown, this embodiment discloses a reagent kit detection sealing structure, including a reagent kit 1, a sealing element 2, a limiting element 3, a detection device 4, and a reagent chamber 5. The sealing element 2 is fixed to the bottom of the reagent chamber 5 by the limiting element 3. The detection device 4 is located below the limiting element 3. The reagent kit 1 is plugged into the reagent chamber 5. The bottom of the reagent kit 1 is provided with an electrode needle 11. The electrode needle 11 penetrates the sealing element 2 and contacts the detection device 4. The detection device 4 can read the potential signal on the electrode needle 11, thereby determining the detection result. The sealing element 2 covers the bottom of the reagent chamber 5 to prevent the liquid in the reagent kit 1 from leaking downwards. After being penetrated by the electrode needle 11, the sealing element 2 eliminates gaps to prevent liquid from leaking along the electrode needle 11.

[0044] The seal 2 is made of silicone and completely covers the bottom structure of the reagent kit 1. When not penetrated, the seal 2 can block the perforation with its own elasticity and prevent liquid from leaking downward.

[0045] Furthermore, the seal 2 is provided with a recess 21, a needle groove 25, and a trigger part 22. The recess 21 is provided on the end face of the seal 2, the needle groove 25 is provided on the side of the recess 21, and the trigger part 22 is elastically connected to the inner bottom wall of the recess 21 to transmit the arrival signal of the reagent kit 1 and start the detection device 4. The recess 21 is used to surround the bottom area of ​​the reagent kit 1 and can be used to contain a certain amount of leakage liquid. The needle groove 25 can guide the electrode needle 11 to fall accurately into the needle groove 25. The bottom of the needle groove 25 is thickened to increase the squeezing force after the electrode needle 11 is inserted, extend the service life, and increase the anti-leakage ability.

[0046] Furthermore, the sealing element 2 is also provided with a limiting groove 23 and a limiting block 24. The limiting groove 23 is provided on both side walls of the sealing element 2, and the limiting block 24 is provided on the side of the recess 21 near the edge of the sealing element 2. The limiting groove 23 is a semi-circular groove, which can be fully positioned with the screw post at the bottom of the reagent chamber 5. The limiting block 24 is a strip-shaped protrusion, which works with the reagent chamber 5 and the limiting element 3 to fix the sealing element 2 from the side. The sealing element 2 is made of flexible material, which can prevent liquid leakage caused by the sealing element 2 shrinking towards the center after being compressed.

[0047] Furthermore, the seal 2 is also provided with a limiting notch 27, which is located on the upper edge of the recess 21. The limiting notch 27 is used to position the seal 2 from the middle to prevent the trigger part 22 and the needle groove 25 from being misaligned due to the displacement of the seal 2, thus affecting the normal operation of the detection program.

[0048] Preferably, the needle groove 25 is configured as a groove protruding from the end face of the seal 2. Specifically, the needle groove 25 is an annular protrusion formed on the end face of the seal 2. The annular protrusion can play a role in thickening and limiting. The needle groove 25 is made of a flexible material. The electrode needle 11 penetrates the bottom of the needle groove 25. The side wall of the electrode needle 11 abuts against the needle groove 25 to seal it, so that liquid can penetrate into the detection device 4 along the electrode needle 11 and cause corrosion.

[0049] Preferably, the top of the trigger part 22 is provided with a reinforcing block 26, which is made of a hard material. The reinforcing block 26 directly contacts the trigger block 12 at the bottom of the reagent kit 1. After the trigger block 12 squeezes the reinforcing block 26, it drives the trigger part 22 to move downward, triggering the switch 42 located on the detection device 4. The detection device 4 starts to run the detection program. The trigger block 12 and the reinforcing block 26 repeatedly contact each other. By utilizing the wear-resistant properties of the reinforcing block 26, the service life and accuracy of the trigger part 22 are improved, and the perforation of the trigger part 22 is prevented after long-term use.

[0050] Preferably, an air supply device 6 is provided on one side of the seal 2. The air supply device 6 is provided with an air supply port and an exhaust port. The air supply port and the exhaust port are equipped with air nozzles made of flexible material, which are used to form a seal at the seam when in contact with the reagent kit 1.

[0051] More preferably, the reagent compartment 5 is provided with a clearance 51 and a pinhole 52. The clearance 51 is located on the inner bottom wall of the reagent compartment 5, and the pinhole 52 is configured to penetrate the bottom wall of the reagent compartment 5. The clearance 51 is a groove located in the bottom corner of the reagent compartment 5. The groove is used to position itself in conjunction with the protruding part at the bottom of the reagent compartment 5. The depth of the groove is greater than that of the protruding part, which can buffer the liquid that leaks from the reagent kit 1. The pinhole 52 is used by the electrode needle 11.

[0052] Preferably, the limiting member 3 includes a first through groove 31 and a second through groove 32. Both the first through groove 31 and the second through groove 32 are configured to penetrate the limiting member 3. The recessed part 21 falls into the first through groove 31. The needle groove 25 is opposite to the second through groove 32. The detection device 4 is provided with a detection groove 41, which falls into the second through groove 32. The first through groove 31 and the second through groove 32 are used to separate and position the detection position and the trigger position to prevent them from interfering with each other.

[0053] More preferably, the bottom of the reagent chamber 5 is provided with a first positioning groove 53 and a second positioning groove 54. The recessed part 21 falls into the first positioning groove 53 and the trigger part 22 falls into the second positioning groove 54. The reagent chamber 5 and the limiting member 3 fix and limit the sealing member 2 in the up and down direction respectively to prevent the sealing member 2 from being misaligned and causing liquid leakage.

[0054] The procedure for using this kit to detect sealed structures is as follows:

[0055] After sampling, the reagent kit 1 is inserted into the reagent chamber 5. The electrode needle 11 and trigger block 12 at the bottom of the reagent kit 1 pass through the bottom surface of the reagent chamber 5 and contact the seal 2. After the electrode needle 11 penetrates the needle groove 25 on the seal 2, it contacts the detection electrode 41 on the detection device 4. The trigger part 22 falls into the recess 21 and pushes the trigger part 22 to move downward to trigger the switch 42 on the detection device 4. The detection program of the detection device 4 runs, and the electrode needle 11 and the detection electrode 41 form a passage, thereby obtaining the detection result. The liquid leaked from the reagent kit 1 will flow into the reagent chamber 5 and will not leak downward. It can be dried during the next test.

[0056] Example 2

[0057] like Figure 14-17 As shown, this embodiment also discloses a detector, including a reagent kit detection sealing structure, a housing 7 and a shell 8. The housing 7 covers the reagent chamber 5 and is used to cover the outer wall of the reagent chamber 5 and can guide the reagent kit 1 into the reagent chamber 5. The shell 8 and the base plate 81 protect the detection device 4 inside.

[0058] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and any modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A reagent kit detection sealing structure, comprising a reagent kit (1), a sealing element (2), a limiting element (3), a detection device (4), and a reagent compartment (5), wherein the sealing element (2) is fixed to the bottom of the reagent compartment (5) by the limiting element (3), and the detection device (4) is disposed below the limiting element (3), characterized in that: The reagent kit (1) is plugged into the reagent compartment (5). The bottom of the reagent kit (1) is provided with an electrode needle (11). The electrode needle (11) penetrates the seal (2) and contacts the detection device (4).

2. The reagent kit detection sealing structure according to claim 1, characterized in that: The sealing element (2) is provided with a recess (21), a needle groove (25) and a trigger part (22). The recess (21) is provided on the end face of the sealing element (2), the needle groove (25) is provided on the side of the recess (21), and the trigger part (22) is elastically connected to the inner bottom wall of the recess (21).

3. The reagent kit detection sealing structure according to claim 2, characterized in that: The sealing element (2) is also provided with a limiting groove (23) and a limiting block (24). The limiting groove (23) is provided on both sides of the sealing element (2), and the limiting block (24) is provided on the side of the recess (21) near the edge of the sealing element (2).

4. The reagent kit detection sealing structure according to claim 2, characterized in that: The sealing element (2) is also provided with a limiting notch (27), which is located on the upper edge of the recess (21).

5. The reagent kit detection sealing structure according to claim 2, characterized in that: The needle groove (25) is configured as a groove protruding from the end face of the seal (2). The needle groove (25) is made of a flexible material. The electrode needle (11) penetrates the bottom of the needle groove (25). The side wall of the electrode needle (11) abuts against the needle groove (25) and seals it.

6. The reagent kit detection sealing structure according to claim 2, characterized in that: The top of the trigger part (22) is provided with a reinforcing block (26).

7. The reagent kit detection sealing structure according to claim 6, characterized in that: The reagent compartment (5) is provided with a clearance space (51) and a pinhole (52). The clearance space (51) is located on the inner bottom wall of the reagent compartment (5), and the pinhole (52) is configured to penetrate the bottom wall of the reagent compartment (5).

8. The reagent kit detection sealing structure according to claim 7, characterized in that: The limiting member (3) includes a first through groove (31) and a second through groove (32). Both the first through groove (31) and the second through groove (32) are configured to penetrate the limiting member (3). The recess (21) falls into the first through groove (31). The needle groove (25) is opposite to the second through groove (32). The detection device (4) is provided with a detection groove (41), which falls into the second through groove (32).

9. The reagent kit detection sealing structure according to claim 8, characterized in that: The reagent compartment (5) has a first positioning groove (53) and a second positioning groove (54) at its bottom. The recess (21) falls into the first positioning groove (53) and the trigger part (22) falls into the second positioning groove (54).

10. A detector, characterized in that: The kit includes the sealing structure described in any one of claims 1-9.

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