An immunochromatographic analyzer detection device and method

Abstract

This invention relates to the field of immunochromatographic analyzer technology, and discloses an immunochromatographic analyzer detection device and method. The immunochromatographic analyzer detection device includes: an analyzer body, a detection area on the front of the analyzer body, a protective cover rotatably mounted on the bottom of the detection area, several slots in the detection area, and a stabilizing mechanism in each slot for pre-fixing the immunochromatographic analysis test strip and reducing vibration during insertion. The stabilizing mechanism includes a stabilizing arm inserted into the slot, main tracks on both sides of the stabilizing arm, a secondary track slidably mounted on the inner side of the main tracks, and a closing chamber on the bottom plate of the stabilizing arm. This invention uses the repeated expansion and contraction of an expanding air cushion to change the pressure in the sample well, thereby achieving contactless mixing of the sample liquid in the well and accelerating the absorption of the liquid under pressure.

Description

Technical Field

[0001] This invention relates to the field of immunochromatographic analyzers, and more specifically, to an immunochromatographic analyzer detection device and method. Background Technology

[0002] An immunochromatographic analyzer is an instrument developed based on immunochromatographic technology, used to rapidly detect specific analytes (such as antigens, antibodies, hormones, etc.) in biological samples. This technology has the advantages of being simple, fast, sensitive, and economical, and is widely used in fields such as medical diagnostics, food safety, and environmental monitoring.

[0003] Dilute the blood sample to be tested as needed. Using a micropipette or other appropriate tools, obtain a certain amount of diluted blood sample. Drop this blood into the sample well of the test strip card and place it on the table for a certain period of time to allow the blood and reagents to react. Push the reacted test strip card into the card slot. The analyzer will automatically identify the type and position of the test strip card to ensure the correct testing procedure. The analyzer will scan and read the test line in the test strip card, and the color change or intensity of the test line will be recorded by the instrument.

[0004] However, if the liquid is not fully absorbed before the test strip is inserted into the immunochromatographic analyzer, the test strip may tilt or shake during insertion, potentially causing liquid spillage or contamination of the surrounding environment. This could affect the test results of other samples or damage the laboratory equipment. Therefore, we propose an immunochromatographic analyzer detection device and method. Summary of the Invention

[0005] This invention provides an immunochromatographic analyzer detection device and method, which solves the technical problem in related technologies that test strip cards may tilt or shake, which may cause liquid to spill or contaminate the surrounding environment, affecting the detection results of other samples or damaging laboratory equipment.

[0006] This invention provides an immunochromatographic analyzer detection device, comprising: an analyzer body, a detection area on the front of the analyzer body, a protective cover rotatably provided at the bottom of the detection area, a plurality of card slots in the detection area, a card stabilizing mechanism provided in the card slots for pre-fixing the immunochromatographic analysis test strip card and reducing the shaking of the inserted test strip card, the card stabilizing mechanism including a card stabilizing arm inserted in the card slot, main rails on both sides of the card stabilizing arm, a secondary rail slidably provided on the inner side of the main rails, and a closing chamber opened in the bottom plate of the card stabilizing arm;

[0007] The inside of the receiving chamber is equipped with a covering assembly, which is used to cover the sample application hole of the test strip card before inserting the test strip card. The covering assembly includes a soft rubber plate, and an expansion air cushion is fixedly embedded in the center of the soft rubber plate, so as to mix the sample liquid in the sample application hole without contact when the test strip card enters the insertion port along with the stabilizing card arm.

[0008] The side plate of the stabilizing arm is equipped with a driving mechanism to provide pressure for the expansion cushion when the test paper card enters the card slot along with the stabilizing arm.

[0009] Furthermore, a removable disinfection strip is installed on the upper wall of the entrance to the receiving chamber for disinfecting the side of the test strip card that is in contact with the receiving chamber. A guide groove is provided on the inner wall of the card stabilizing arm, and the guide groove is connected to the sliding track on the side wall of the receiving chamber for moving the soft rubber plate from the receiving chamber to the sample application hole of the test strip card in the card stabilizing arm.

[0010] Furthermore, several support plates are inserted inside the soft rubber plate. A guide wire is fixedly installed at the top of the support plate. A limit ball is fixedly installed at the end of the guide wire away from the entrance of the closing chamber. A fabric roll is fixedly installed at the end of the limit ball away from the guide wire. A coil spring wheel that is rotatably connected to the stabilizing clamp arm is fixedly installed at the end of the fabric roll away from the guide wire.

[0011] Furthermore, a limiting ball is fixedly installed at one end of the guide wire near the entrance of the closing chamber. A pull line is fixedly installed on the side of the limiting ball away from the guide wire, and the pull line passes through the inside of the side wall of the stabilizing arm while the end away from the limiting ball is fixedly connected to the sub-rail, which is used to provide pulling force for the soft rubber plate to slide out when the stabilizing arm is pulled out.

[0012] Furthermore, an air inlet is provided on the side wall of the soft rubber plate in the direction of the entrance to the closing chamber. The air inlet is connected to the expansion air cushion, and the wall thickness of the expansion air cushion gradually increases from the center to the outer edge.

[0013] Furthermore, the driving mechanism includes a force-bearing arm that is rotatably connected to the stabilizing clamp arm, and the longitudinal arm of the force-bearing arm near the soft rubber plate passes through the inside of the side wall of the stabilizing clamp arm. A compression plate is rotatably arranged on the inner side of the longitudinal arm of the force-bearing arm, and an airbag is fixedly arranged on the inner side of the compression plate. A side groove is opened on the outer side of the longitudinal arm of the force-bearing arm, and a resistance block is fixedly arranged at the bottom of the inner side of the side groove.

[0014] Furthermore, a shrinkage air box is provided on one side of the side groove and is rotatably connected to the stabilizing clamping arm. Several ratchet teeth are fixedly provided on the outer wall of the shrinkage air box, and the ratchet teeth mesh with the resistance block. Several compression blocks are fixedly provided inside the shrinkage air box.

[0015] Furthermore, a fixed ring box is provided on the inner side of the compression block, and an air storage ring is fixedly installed inside the fixed ring box. An air compression block is rotatably installed on one side of the fixed ring box. A torsion spring column fixedly connected to the shrink air box is inserted through the center of the fixed ring box. An air pipe is connected to the output end of the air storage ring, and an air jet is fixedly installed at the output end of the air pipe. At the same time, the air pipe is connected to the airbag.

[0016] Furthermore, a control ring is fixedly installed at the bottom of the longitudinal arm of the force-bearing arm, and an airbag II is installed at the center of the control ring. Several shaping wires I and II are respectively installed on the outer wall of the airbag II. An air supply pipe is connected to the output end of the airbag II. A blocking ring is installed at the output end of the air supply pipe, and an expansion ring is installed on the inner side of the blocking ring.

[0017] A method for detecting using an immunochromatographic analyzer includes the following steps:

[0018] S1. Ensure that the laboratory work surface is clean and tidy, and that all necessary tools and reagents are ready;

[0019] S2. Open the protective cover and let the stabilizing arm slide out of the insertion slot on the main track and the auxiliary track. Then press the test paper card into the stabilizing arm.

[0020] S3. Dilute the blood sample to be tested as necessary. Use a micropipette or other appropriate tools to obtain a certain amount of diluted blood sample and drop the blood into the sample application well of the test strip in the stabilized card arm.

[0021] S4. Push the sampled test strip into the card slot along with the card holder arm;

[0022] S5. Wait for a certain amount of time for the blood and reagents to react;

[0023] S6. The analyzer will automatically identify the type and location of the test strip card to ensure the correct testing procedure. The analyzer will scan and read the detection lines in the test strip card, and the color change or intensity of the detection lines will be recorded by the instrument.

[0024] S7. Based on the read data, the analyzer will process and analyze the data to determine whether the sample contains the target substance and calculate the corresponding test results. Finally, the analysis results will be displayed on the analyzer's screen or printed out, allowing users to view the test results intuitively.

[0025] The beneficial effects of this invention are as follows:

[0026] This invention allows the stabilizing arm to slide out of the insertion slot on the main and auxiliary tracks, and then the test strip card is pressed and secured in the stabilizing arm. After the blood sample is dripped into the sample application hole, there is no need to move the test strip card. The test strip card in the stabilizing arm can ensure the stability of the test strip card during the insertion process, preventing tilting, shaking and other problems that could cause incompletely absorbed blood sample to spill or contaminate the surrounding environment, while also preventing damage to laboratory equipment.

[0027] By repeatedly expanding and contracting the air cushion to change the pressure in the sample well, the sample liquid in the well can be mixed without contact, and the absorption of the liquid in the well can be accelerated under pressure. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the stable clamping arm structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the disinfection strip structure of the present invention;

[0031] Figure 4 This is the invention Figure 3 Enlarged view of point A in the middle;

[0032] Figure 5 This is a schematic diagram of the guide wire structure of the present invention;

[0033] Figure 6 This is the invention Figure 5 Enlarged view of point B in the middle;

[0034] Figure 7 This is the invention Figure 5 Enlarged view of point C in the middle;

[0035] Figure 8 This is a schematic diagram of the internal structure of the flexible rubber sheet of the present invention;

[0036] Figure 9 This is a schematic diagram of the force arm structure of the present invention;

[0037] Figure 10 This is the invention Figure 9 Enlarged view of point D;

[0038] Figure 11 This is a schematic diagram of the control ring structure of the present invention;

[0039] Figure 12 This is a schematic diagram of the internal structure of the shrinkage air box of the present invention.

[0040] In the diagram: 11. Analyzer body; 12. Detection area; 13. Protective cover; 14. Insertion slot; 2. Stabilizing mechanism; 21. Stabilizing arm; 211. Main track; 212. Secondary track; 213. Sterilization strip; 214. Closing chamber; 215. Guide groove; 3. Drive mechanism; 31. Force arm; 32. Extrusion plate; 33. Airbag one; 34. Side groove; 341. Resistance block; 35. Control ring; 351. Airbag two; 352. Shaping wire one; 353. Shaping wire two; 354. Gas delivery. 355. Pipe; 356. Blocking ring; 357. Expansion ring; 368. Contraction air box; 369. Racket tooth; 360. Compression block; 361. Air storage ring; 362. Torsion spring column; 363. Fixing ring box; 364. Compression block; 365. Vent pipe; 366. Jet nozzle; 47. Covering hole assembly; 48. Soft rubber plate; 49. Expansion air cushion; 400. Support plate; 41. Guide wire; 42. Limiting ball one; 46. Coil spring wheel; 47. Fabric roll; 48. Pull line; 49. Limiting ball two; 401. Air inlet. Detailed Implementation

[0041] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0042] Example 1

[0043] like Figure 1 - Figure 12 As shown, an immunochromatographic analyzer detection device includes: an analyzer body 11, a detection area 12 on the front of the analyzer body 11, a protective cover 13 rotatably mounted on the bottom of the detection area 12, and several insertion slots 14 in the detection area 12. The protective cover 13 is opened, allowing the stabilizing arm 21 to slide out of the insertion slots 14 on the main track 211 and the sub-track 212. The test strip is then pressed and secured in the stabilizing arm 21. The blood sample to be tested is diluted as necessary. A certain amount of diluted blood sample is obtained using a micropipette or other appropriate tools, and this blood is dripped into the sample application hole of the test strip in the stabilizing arm 21.

[0044] The insertion slot 14 is equipped with a card stabilizing mechanism 2, which is used to pre-fix the test strip card for immunochromatographic analysis and reduce the shaking when inserting the test strip card. The card stabilizing mechanism 2 includes a card stabilizing arm 21 inserted into the insertion slot 14. The card stabilizing arm 21 has a main track 211 on both sides and a secondary track 212 slidably arranged on the inner side of the main track 211. The bottom plate of the card stabilizing arm 21 has a closing chamber 214, which allows the card stabilizing arm 21 to slide out of the insertion slot 14 on the main track 211 and the secondary track 212. Then, the test strip card is pressed and secured in the card stabilizing arm 21. After the blood sample is dripped into the sample application hole, there is no need to move the test strip card. The test strip card in the card stabilizing arm 21 can ensure the stability of the test strip card during the insertion process of the insertion slot 14, and prevent tilting, shaking and other problems that may cause unabsorbed blood sample to spill or contaminate the surrounding environment, while also preventing damage to laboratory equipment.

[0045] The receiving chamber 214 is equipped with a covering assembly 4, which covers the sample application hole of the test strip card before insertion. The covering assembly 4 includes a soft rubber plate 41, with an expansion air cushion 42 fixedly embedded in the center of the soft rubber plate 41. This air cushion is used to mix the sample liquid in the sample application hole without contact when the test strip card enters the insertion slot 14 along with the stabilizing arm 21. When the stabilizing arm 21 is pulled out, the pull wire 48 is pulled by the secondary rail 212, providing power to the receiving chamber 214. When the sampled test strip card is pushed into the insertion slot 14 along with the stabilizing arm 21, the pull wire 48 is quickly released by the driving mechanism 3. The elastic pull of the pull line 48 causes the soft rubber plate 41 to slide out of the collection chamber 214 and tightly cover the sample application hole of the test strip card, thereby preventing the sample liquid splashed around the sample application hole of the test strip card from being covered. When the test strip card is inserted, it prevents the liquid from contacting the inside, which could lead to equipment contamination, malfunction or damage. At the same time, after the test strip card is fully inserted into the card slot 14, the pressure change in the sample application hole is changed by the repeated expansion and contraction of the expansion air cushion 42, thereby achieving the effect of non-contact mixing of the sample liquid in the sample application hole. It can also accelerate the absorption of the liquid in the sample application hole under pressure.

[0046] The side plate upper wall of the stabilizing arm 21 is provided with a driving mechanism 3, which is used to provide pressure to the expansion cushion 42 when the test paper card enters the card slot 14 along with the stabilizing arm 21.

[0047] A removable disinfection strip 213 is installed on the upper wall of the entrance to the receiving chamber 214 to disinfect the side of the test strip card that is in contact with the test strip card when it is returned to the receiving chamber 214. A guide groove 215 is provided on the inner wall of the stabilizing arm 21, and the guide groove 215 is connected to the sliding track on the side wall of the receiving chamber 214. This allows the soft rubber plate 41 to move from the receiving chamber 214 to above the sample application hole of the test strip card in the stabilizing arm 21. After the device finishes testing the test strip card and exits, the soft rubber plate 41 is pulled back into the receiving chamber 214. After the soft rubber plate 41 retracts back into the receiving chamber 214, it passes through the disinfection strip 213 to disinfect the side of the test strip card, which is beneficial for multiple cycles of use.

[0048] Several support plates 43 are inserted inside the soft rubber plate 41. A guide wire 44 is fixedly installed at the top of the support plate 43. A limit ball 45 is fixedly installed at the end of the guide wire 44 away from the entrance of the closing chamber 214. A fabric roll 47 is fixedly installed at the end of the limit ball 45 away from the guide wire 44. A coil spring wheel 46 that is rotatably connected to the stabilizing clamp arm 21 is fixedly installed at the end of the fabric roll 47 away from the guide wire 44.

[0049] A limiting ball 49 is fixedly installed at one end of the guide wire 44 near the entrance of the receiving chamber 214. A pull wire 48 is fixedly installed on the side of the limiting ball 49 away from the guide wire 44. The pull wire 48 passes through the inside of the side wall of the stabilizing arm 21, and the end of the pull wire 48 away from the limiting ball 49 is fixedly connected to the secondary rail 212. This provides a pulling force for the sliding of the soft rubber plate 41 when the stabilizing arm 21 is pulled out. When the pull wire 48 is pulled by the secondary rail 212, the pull wire 48 is stretched under elasticity. Then, while the expansion ring 356 shrinks, the pull wire 48 quickly pulls the guide wire 44 and the soft rubber plate 41 from the receiving chamber. The soft rubber plate 41 is moved out of the closing chamber 214. At the same time, the support plate 43, the first limiting ball 45 and the second limiting ball 49 engage and slide with the guide groove 215, so that the soft rubber plate 41 moves above the sample application hole of the test paper card and covers the sample application hole. At the same time as the soft rubber plate 41 is moved out of the closing chamber 214, the roll cloth 47 wound on the coil spring wheel 46 is pulled out and stored. After the test paper card is removed from the card insertion slot 14, the upper wall of the card insertion slot 14 can no longer apply pressure to the soft rubber plate 41. Through the torsion spring force in the coil spring wheel 46, the roll cloth 47 is wound up again, so that the soft rubber plate 41 returns to the closing chamber 214.

[0050] The soft rubber plate 41 slides out of the inlet of the closing chamber 214 and has an air inlet 401 on its side wall. The air inlet 401 is connected to the expansion air cushion 42, and the wall thickness of the expansion air cushion 42 gradually increases from the center to the outer edge. When the soft rubber plate 41 slides out of the closing chamber 214 and reaches the sample application hole of the test strip card, the air inlet 401 is just connected to the air jet head 37. When the stabilizing arm 21 is squeezed, the air in the air bag 33 and the air storage ring 363 can flow into the expansion air cushion 42. The pressure change in the sample application hole is changed by the repeated expansion and contraction of the expansion air cushion 42, thereby playing the role of mixing the sample liquid in the sample application hole without contact. It can also accelerate the absorption of liquid in the sample application hole under pressure.

[0051] The driving mechanism 3 includes a force-bearing arm 31 rotatably connected to the stabilizing arm 21, and the longitudinal arm of the force-bearing arm 31 near the soft rubber plate 41 extends through the side wall of the stabilizing arm 21. A compression plate 32 is rotatably arranged on the inner side of the longitudinal arm of the force-bearing arm 31, and an airbag 33 is fixedly arranged on the inner side of the compression plate 32. A side groove 34 is opened on the outer side of the longitudinal arm of the force-bearing arm 31, and a resistance block 341 is fixedly arranged at the bottom of the inner side of the side groove 34. When the stabilizing arm 21 is pushed back, the force-bearing arm 31 is pressed down through the insertion slot 14 to flatten the force-bearing arm 31. The compression plate 32 then compresses the airbag 33, so that the air in the airbag 33 flows into the inflatable air cushion 42.

[0052] A shrinkable air box 36 is provided on one side of the side groove 34 and is rotatably connected to the stabilizing clamp arm 21. Several ratchet teeth 361 are fixedly provided on the outer wall of the shrinkable air box 36, and the ratchet teeth 361 mesh with the resistance block 341. Several compression blocks 362 are fixedly provided inside the shrinkable air box 36.

[0053] A fixed ring box 365 is provided inside the compression block 362. An air storage ring 363 is fixedly installed inside the fixed ring box 365. An air compression block 366 is rotatably installed on one side of the fixed ring box 365. A torsion spring column 364, which is fixedly connected to the retractable air box 36, is inserted through the center of the fixed ring box 365. An air pipe 367 is connected to the output end of the air storage ring 363, and an air nozzle 37 is fixedly installed at the output end of the air pipe 367. At the same time, the air pipe 367 is connected to the air bag 33. When the longitudinal arm of the force arm 31 slides down, the ratchet tooth 361 is pressed down by the resistance block 341, which drives the retractable air box. 36 rotates, and then the spring force of the torsion spring column 364 provides a reaction force to the dynamic contraction air box 36. The ratchet 361 is a rubber block. Gradually, the ratchet 361 disengages from the obstruction of the resistance block 341, so the contraction air box 36 slowly rotates back. With each rotation of the ratchet 361 of the contraction air box 36, the compression block 362 compresses the air block 366. The air block 366 rotates back into the fixed ring box 365 to compress the air storage ring 363. In this way, each compression of the air block 366 allows air to flow from the vent pipe 367 into the expansion air cushion 42, thereby playing a role in multiple inflation and deflation.

[0054] A control ring 35 is fixedly installed at the bottom of the longitudinal arm of the force arm 31. An airbag 351 is installed at the center of the control ring 35. Several shaping wires 352 and 353 are respectively installed on the outer wall of the airbag 351. An air supply pipe 354 is connected to the output end of the airbag 351. A blocking ring 355 is installed at the output end of the air supply pipe 354. An expansion ring 356 is installed on the inner side of the blocking ring 355. When the longitudinal arm of the force arm 31 is pressed down, the control ring 35 is pressed down. The control ring 35 is pressed down, which can cause the shaping wires 353 to expand the volume of the airbag 351, thereby increasing the volume of the airbag 351. At the same time, the air in the expansion ring 356 flows back into the airbag 351, the expansion ring 356 shrinks, and the limiting ball 49 passes through the expansion ring 356.

[0055] Example 2

[0056] The present invention also discloses a method for using an immunochromatographic analyzer detection device, comprising the following steps:

[0057] S1. Ensure that the laboratory work surface is clean and tidy, and that all necessary tools and reagents are ready;

[0058] S2. Open the protective cover 13, so that the stabilizing arm 21 slides out of the insertion slot 14 on the main track 211 and the auxiliary track 212, and then press the test paper card into the stabilizing arm 21.

[0059] S3. Dilute the blood sample to be tested as necessary. Use a micropipette or other appropriate tools to obtain a certain amount of diluted blood sample and drop the blood into the sample application hole of the test strip card in the stabilized card arm 21.

[0060] S4. Push the sampled test strip into the card slot 14 along with the card stabilizing arm 21.

[0061] S5. Wait for a certain amount of time for the blood and reagents to react;

[0062] S6. The analyzer body 11 will automatically identify the type and position of the test strip card to ensure the correct testing procedure. The analyzer body 11 will scan and read the detection line in the test strip card, and the color change or intensity of the detection line will be recorded by the instrument.

[0063] S7. Based on the read data, the analyzer body 11 will perform data processing and analysis to determine whether the sample contains the target substance and calculate the corresponding test results. Finally, the analysis results will be displayed on the screen of the analyzer body 11 or printed out, allowing users to view the test results intuitively.

[0064] The embodiments of this example have been described above. However, this example is not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this example, and all of them are within the protection scope of this example.

Claims

1. An immunochromatographic analyzer detection device, comprising: The analyzer body (11) has a detection area (12) on the front and a protective cover (13) at the bottom of the detection area (12). The detection area (12) has several card slots (14). The card slots (14) are equipped with a card stabilizing mechanism (2) for pre-fixing the test strip card for immunochromatographic analysis and reducing the shaking when inserting the test strip card. The card stabilizing mechanism (2) includes a card stabilizing arm (21) inserted into the card slot (14). The card stabilizing arm (21) has a main track (211) on both sides and a secondary track (212) slidingly arranged inside the main track (211). The bottom plate of the card stabilizing arm (21) has a closing chamber (214). The receiving chamber (214) is provided with a hole covering assembly (4) for covering the sample application hole of the test strip card before inserting the test strip card. The hole covering assembly (4) includes a soft rubber plate (41), and an expansion air cushion (42) is fixedly embedded in the center line of the soft rubber plate (41) for mixing the sample liquid in the sample application hole without contact when the test strip card enters the insertion port (14) along with the stabilizing card arm (21). The side plate of the stabilizing arm (21) is provided with a driving mechanism (3) for providing pressure to the expansion cushion (42) when the test paper card enters the card slot (14) along with the stabilizing arm (21).

2. The immunochromatographic analyzer detection device according to claim 1, characterized in that, The upper wall of the entrance of the receiving chamber (214) is equipped with a detachable disinfection strip (213) for disinfecting the side of the receiving chamber (214) that contacts the test strip card. The inner wall of the stabilizing arm (21) is provided with a guide groove (215), and the guide groove (215) is connected to the sliding track on the side wall of the receiving chamber (214) for allowing the soft rubber plate (41) to move from the receiving chamber (214) to above the sample application hole of the test strip card in the stabilizing arm (21).

3. The immunochromatographic analyzer detection device according to claim 1, characterized in that, The soft rubber plate (41) is provided with several support plates (43). The top of the support plate (43) is fixedly provided with a guide wire (44). The end of the guide wire (44) away from the entrance of the closing chamber (214) is fixedly provided with a limiting ball (45). The end of the limiting ball (45) away from the guide wire (44) is fixedly provided with a cloth roll (47). The end of the cloth roll (47) away from the guide wire (44) is fixedly provided with a coil spring wheel (46) that is rotatably connected to the stabilizing clamp arm (21).

4. The immunochromatographic analyzer detection device according to claim 3, characterized in that, The guide wire (44) is fixedly provided with a limiting ball (49) at one end near the entrance of the receiving chamber (214). A pull wire (48) is fixedly provided on the side of the limiting ball (49) away from the guide wire (44). The pull wire (48) passes through the inside of the side wall of the stabilizing arm (21) and is fixedly connected to the sub-track (212) at the end away from the limiting ball (49). It is used to provide a pulling force for the soft rubber plate (41) to slide out when the stabilizing arm (21) is pulled out.

5. The immunochromatographic analyzer detection device according to claim 1, characterized in that, The soft rubber plate (41) slides out of the entrance of the closing chamber (214) and has an air inlet (401) on the side wall. The air inlet (401) is connected to the expansion air cushion (42), and the wall thickness of the expansion air cushion (42) gradually increases from the center to the outer edge.

6. The immunochromatographic analyzer detection device according to claim 1, characterized in that, The driving mechanism (3) includes a force-bearing arm (31) rotatably connected to the stabilizing arm (21), and the longitudinal arm of the force-bearing arm (31) near the soft rubber plate (41) passes through the inside of the side wall of the stabilizing arm (21). A compression plate (32) is rotatably provided on the inner side of the longitudinal arm of the force-bearing arm (31), and an airbag (33) is fixedly provided on the inner side of the compression plate (32). A side groove (34) is opened on the outer side of the longitudinal arm of the force-bearing arm (31), and a resistance block (341) is fixedly provided at the bottom of the inner side of the side groove (34).

7. The immunochromatographic analyzer detection device according to claim 6, characterized in that, A shrinkable air box (36) is provided on one side of the side groove (34) and is rotatably connected to the stabilizing arm (21). A number of ratchet teeth (361) are fixedly provided on the outer wall of the shrinkable air box (36), and the ratchet teeth (361) mesh with the resistance block (341). A number of compression blocks (362) are fixedly provided inside the shrinkable air box (36).

8. The immunochromatographic analyzer detection device according to claim 7, characterized in that, The inner side of the compression block (362) is provided with a fixed ring box (365), and the inside of the fixed ring box (365) is fixedly provided with an air storage ring (363). A pressure block (366) is rotatably provided on one side of the fixed ring box (365). A torsion spring column (364) fixedly connected to the shrink air box (36) is passed through the center of the fixed ring box (365). The output end of the air storage ring (363) is connected to a vent pipe (367), and the output end of the vent pipe (367) is fixedly provided with a jet nozzle (37). At the same time, the vent pipe (367) is connected to the air bag (33).

9. The immunochromatographic analyzer detection device according to claim 8, characterized in that, A control ring (35) is fixedly installed at the bottom of the longitudinal arm of the force arm (31). An airbag (351) is installed at the center of the control ring (35). Several shaping wires (352) and (353) are respectively installed on the outer wall of the airbag (351). An air supply pipe (354) is connected to the output end of the airbag (351). A blocking ring (355) is installed at the output end of the air supply pipe (354). An expansion ring (356) is installed on the inner side of the blocking ring (355).

10. A method for using the immunochromatographic analyzer detection device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Ensure that the laboratory work surface is clean and tidy, and that all necessary tools and reagents are ready; S2. Open the protective cover (13) and let the stabilizing arm (21) slide out of the insertion slot (14) on the main track (211) and the auxiliary track (212). Then press the test paper card into the stabilizing arm (21). S3. Dilute the blood sample to be tested as necessary. Use a micropipette or other appropriate tools to obtain a certain amount of diluted blood sample and drop the blood into the sample application hole of the test strip card in the stabilized card arm (21). S4. Push the sampled test strip into the card slot (14) along with the card stabilizing arm (21); S5. Wait for a certain amount of time for the blood and reagents to react; S6. The analyzer body (11) will automatically identify the type and position of the test strip card to ensure the correct testing procedure. The analyzer body (11) will scan and read the detection line in the test strip card. The color change or intensity of the detection line will be recorded by the instrument. S7. Based on the data read, the analyzer body (11) will perform data processing and analysis to determine whether the sample contains the target substance and calculate the corresponding test results. Finally, the analysis results will be displayed on the screen of the analyzer body (11) or printed out, and users can intuitively view the test results.

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