Blood extraction device for immunological detection

By designing a blood extraction device with a rotary drive assembly and a unidirectional screw, the problem of existing devices being unable to automatically extract multiple blood tubes was solved, realizing automatic blood extraction and discharge, and improving the efficiency of immunological testing.

CN223841927UActive Publication Date: 2026-01-27SHANGHAI BLOOD BIOPHARMACEUTICAL CO LTD
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Patent Information

Application Number
CN202520193464.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-01-27
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Existing blood extraction devices cannot automate the sequential extraction of blood from multiple blood tubes, affecting the efficiency of immunological testing.

Method used

A blood extraction device including a rotation drive assembly and a one-way screw was designed. The rotating rod drives the test tube to rotate, and the one-way screw drives the slider and connecting plate to move. Combined with the telescopic rod and piston plate, the automatic extraction and discharge of blood can be achieved.

Benefits of technology

It automates blood extraction, reduces manual operations, and improves the efficiency of immunological testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of immunological detection, in particular to a blood extraction device for immunological detection, which comprises a support frame, a first rotating rod mounted in the support frame, mounting frames arranged on the inner walls of two ends of the support frame, a bearing frame mounted on the first rotating rod, and a mounting seat arranged at the bottom of the bearing frame. Blood storage test tubes are inserted into the tops of the mounting seats; a fixing plate is installed on the outer wall of the supporting frame, a second driving part is installed on the fixing plate, a one-way screw rod is installed on the second driving part, a sliding block is connected to the one-way screw rod, a connecting plate is arranged on the sliding block, an extraction pipe is embedded in the connecting plate, a telescopic rod is embedded in the connecting plate, a connecting block is arranged at the top of the telescopic rod, and a connecting rod is arranged at the bottom of the connecting block; a piston plate is arranged at the bottom of the connecting rod, a sealing cavity and a liquid discharging assembly are formed in the piston plate, blood for immunological detection can be effectively, conveniently and automatically extracted and treated in sequence, and therefore the extraction device can be conveniently used.
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Description

Technical Field

[0001] This utility model relates to the field of immunological detection, specifically a blood extraction device for immunological detection. Background Technology

[0002] Immunological testing is a type of technology that utilizes the principle of specific binding between antigens and antibodies to detect various biomolecules, pathogens, cells, etc. It can be used to detect a wide range of biomolecules, including proteins, polysaccharides, viruses, and bacteria. In the medical field, it can be used to diagnose various diseases, including infectious diseases, autoimmune diseases, and tumors, by detecting pathogen antigens or antibodies, autoantibodies, and tumor markers.

[0003] In immunological testing, a blood extraction device is needed to extract blood stored in blood storage tubes. However, current extraction equipment cannot automatically extract blood sequentially from each blood tube, thus affecting the use of the extraction device. Utility Model Content

[0004] The purpose of this invention is to provide a blood extraction device for immunological detection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An immunological detection blood extraction device includes a support frame. A first rotating rod is rotatably mounted at the center of the support frame. Mounting frames are provided on the inner walls of both ends of the support frame. A rotation drive assembly for driving the first rotating rod to rotate is mounted on the top mounting frame. A carrier frame is fixedly mounted on the first rotating rod. A plurality of mounting seats are evenly spaced at the bottom of the carrier frame, and a plurality of blood storage tubes are inserted into the top of the mounting seats. A pair of fixing plates are fixedly mounted on the outer wall of the left end of the support frame. A second drive unit is fixedly mounted on the bottom fixing plate. A one-way screw is mounted on the motor shaft of the second drive unit. A slider is threaded onto the one-way screw. A connecting plate is provided on the slider. An extraction tube is embedded in the connecting plate. An extraction assembly is provided at the bottom of the extraction tube. A telescopic rod is embedded in the connecting plate. A connecting block is provided at the top of the telescopic rod. A connecting rod is provided at the bottom of the connecting block. The bottom of the connecting rod is slidably disposed inside the extraction tube. A piston plate is provided at the bottom of the connecting rod. A sealing cavity is opened inside the piston plate. A drainage assembly is installed inside the sealing cavity.

[0007] Preferably, the rotation drive assembly includes a first drive part fixedly connected to the inner wall of the mounting frame, a second rotating rod is provided on the output shaft of the first drive part, a driving bevel gear is mounted on the second rotating rod, a driven bevel gear is meshed on the driving bevel gear, and the driven bevel gear is connected to the second rotating rod.

[0008] Preferably, the extraction assembly includes an extraction needle tube that is conductively connected to the bottom of the extraction tube, and a first one-way valve is installed on the extraction needle tube.

[0009] Preferably, the drainage assembly includes a connecting pipe that is conductively connected to the piston plate, and a second one-way valve is installed on the connecting pipe.

[0010] Preferably, an opening is provided on the support frame located at the top of the extraction tube.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model drives the first rotating rod to rotate through the rotation drive assembly. The first rotating rod drives the support frame and each installed blood storage tube to adjust their rotational orientation, thereby enabling the extraction of blood from each storage tube. This utility model drives the one-way screw to rotate through the second drive unit. The one-way screw drives the threaded slider to move, and the slider synchronously drives the connecting plate to move. The connecting plate drives the extraction tube and extraction assembly to move downward and insert into the blood storage tube. The telescopic rod drives the connecting block to move the connecting rod upward. The connecting rod draws blood into the bottom of the extraction tube through the extraction assembly. The telescopic rod drives the connecting block and connecting rod to move the piston plate downward. The solution inside the extraction tube is added to the extraction tube located at the top of the piston plate through the drainage assembly. The telescopic rod drives the piston plate to move upward, and the piston plate discharges the extracted blood solution. Thus, this utility model eliminates the need for manual extraction and discharge, enabling automatic extraction of blood solution, which facilitates immunological testing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a blood extraction device for immunological detection according to this utility model.

[0013] Figure 2 This is a schematic diagram of the connection between the unidirectional screw and the slider in a blood extraction device for immunological detection according to this utility model.

[0014] Figure 3 This is a front sectional view of a blood extraction device for immunological detection according to the present invention.

[0015] Figure 4 For this Figure 3 Enlarged structural diagram of the piston plate at point A.

[0016] 1. Support frame; 2. Support foot; 3. Rotating rod; 4. Mounting frame; 5. First drive unit; 6. Rotating rod; 7. Driving bevel gear; 8. Driven bevel gear; 9. Bearing frame; 10. Mounting base; 11. Blood storage tube; 12. Fixing plate; 13. Second drive unit; 14. One-way screw; 15. Slider; 16. Connecting plate; 17. Extraction tube; 18. Extraction needle; 19. First one-way valve; 20. Connecting nozzle; 21. Telescopic rod; 22. Connecting block; 23. Connecting rod; 24. Piston plate; 25. Sealing cavity; 26. Connecting tube; 27. Second one-way valve; 28. Opening. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this utility model to enable the reader to better understand this application. However, the technical solutions claimed in this application can be implemented even without these technical details and with various changes and modifications based on the following embodiments.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] See Figure 1-4 In this embodiment of the present invention, a blood extraction device for immunological detection includes a support frame 1. A first rotating rod 3 is rotatably mounted at the center of the support frame 1. Mounting frames 4 are provided on the inner walls of both ends of the support frame 1. A rotation drive assembly for driving the first rotating rod 3 to rotate is mounted on the top mounting frame 4. A bearing frame 9 is fixedly mounted on the first rotating rod 3. A plurality of mounting seats 10 are provided at equal intervals at the bottom of the bearing frame 9. A plurality of blood storage test tubes 11 are inserted into the top of the mounting seats 10. A pair of fixing plates 12 are fixedly mounted on the outer wall of the left end of the support frame 1. A pair of fixing plates 12 are fixedly mounted on the bottom fixing plates 12. The device is equipped with a second drive unit 13. A one-way screw 14 is mounted on the motor shaft of the second drive unit 13. A slider 15 is threaded onto the one-way screw 14. A connecting plate 16 is provided on the slider 15. An extraction tube 17 is embedded in the connecting plate 16. An extraction component is provided at the bottom of the extraction tube 17. A telescopic rod 21 is embedded in the connecting plate 16. A connecting block 22 is provided at the top of the telescopic rod 21. A connecting rod 23 is provided at the bottom of the connecting block 22. The bottom of the connecting rod 23 is slidably disposed inside the extraction tube 17. A piston plate 24 is provided at the bottom of the connecting rod 23. A sealing cavity 25 is opened inside the piston plate 24. A drainage component is installed inside the sealing cavity 25.

[0021] This invention uses a rotation drive assembly to drive a first rotating rod 3 to rotate. The first rotating rod 3 drives the support frame 9 and the installed blood storage tubes 11 to rotate to the bottom of the extraction assembly. The second drive unit 13 drives a one-way screw 14 to rotate. The one-way screw 14 drives a threaded slider 15 to move. The slider 15 synchronously drives a connecting plate 16 to move. The connecting plate 16 drives the extraction tube 17 and the extraction assembly to move downward and insert into the blood storage tube 11. The telescopic rod 21 drives a connecting block 22 to move a connecting rod 23 upward. The connecting rod 23 draws blood into the bottom of the extraction tube 17 through the extraction assembly. The telescopic rod 21 drives the connecting block 22 and the connecting rod 23 to move the piston plate 24 downward. The solution inside the extraction tube 17 is added to the extraction tube 17 located at the top of the piston plate 24 through a drainage assembly. The telescopic rod 21 drives the piston plate 24 to move upward, and the piston plate 24 discharges the extracted blood solution.

[0022] See Figure 1 In one embodiment of this utility model, support feet 2 are provided at the four corners of the bottom of the support frame 1. The support feet 2 can provide stable support for the entire device, thereby ensuring the smooth operation of the device.

[0023] See Figure 3 In one embodiment of this utility model, the rotation drive assembly includes a first drive part 5 fixedly connected to the inner wall of the mounting frame 4. A second rotating rod 6 is provided on the output shaft of the first drive part 5. A driving bevel gear 7 is mounted on the second rotating rod 6. A driven bevel gear 8 is meshed on the driving bevel gear 7. The driven bevel gear 8 is connected to the second rotating rod 6. Through the operation of the first drive part 5, the first drive part 5 drives the second rotating rod 6 to rotate. The second rotating rod 6 drives the driving bevel gear 7 to rotate. The driving bevel gear 7 drives the meshed driven bevel gear 8 to rotate. The driven bevel gear 8 can realize the rotational orientation adjustment of the first rotating rod 3.

[0024] See Figure 3 In one embodiment of the present invention, the extraction assembly includes an extraction needle tube 18 that is conductively connected to the bottom of the extraction tube 17. A first one-way valve 19 is installed on the extraction needle tube 18. By opening the first one-way valve 19, the extraction needle tube 18 can conveniently add blood from the blood storage tube 11 into the extraction tube 17 for blood extraction processing.

[0025] See Figure 3 In one embodiment of this utility model, a connecting nozzle 20 is provided on the top side wall of the extraction tube 17. The connecting nozzle 20 facilitates the discharge of the extracted blood.

[0026] See Figure 4In one embodiment of this utility model, the drainage assembly includes a connecting pipe 26 that is conductively connected to the piston plate 24. A second one-way valve 27 is installed on the connecting pipe 26. By opening the second one-way valve 27, the connecting pipe 26 can drain the blood extracted at the bottom of the piston plate 24 into the extraction pipe 17 at the top of the piston plate 24 for storage, thereby facilitating the extraction and processing of blood.

[0027] See Figure 1 In one embodiment of this utility model, an opening 28 is provided on the support frame 1 at the top of the extraction tube 17. The opening 28 facilitates the vertical movement and orientation adjustment of the extraction tube 17.

[0028] Working Principle: This utility model operates through a first driving unit 5, which drives a second rotating rod 6 to rotate. The second rotating rod 6 drives a driving bevel gear 7 to rotate, which in turn drives a meshing driven bevel gear 8 to rotate. The driven bevel gear 8 drives a first rotating rod 3 to rotate, which in turn drives the support frame 9 and the blood storage tube 11 to rotate to the bottom of the extraction assembly. Then, the second driving unit 13 operates, driving a one-way screw 14 to rotate. The one-way screw 14 drives a threaded slider 15 to move, which in turn moves a connecting plate 16 up and down for height adjustment. As the connecting plate 16 moves downward, it simultaneously drives the extraction tube 17 to move downward, and the extraction tube 17 simultaneously drives the extraction needle tube 18 to move downward. The blood is moved into the blood storage tube 11. The telescopic rod 21 drives the connecting block 22 to move the connecting rod 23 upward. The connecting rod 23 moves the piston plate 24 upward. The piston plate 24 adds blood solution to the bottom of the extraction tube 17 through the extraction needle 18. The telescopic rod 21 drives the connecting block 22 to move the connecting rod 23 downward. The connecting rod 23 moves the piston plate 24 downward to squeeze the blood solution at the bottom of the extraction tube 17. The blood solution is added into the extraction tube 17 located at the top of the piston plate 24 through the connecting plate 16. The telescopic rod 21 drives the connecting block 22 to move the connecting rod 23 upward. The connecting rod 23 moves the piston plate 24 upward. The blood is discharged through the connecting nozzle 20, thus achieving rapid blood extraction.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A blood extraction device for immunological detection, comprising a support frame (1), characterized in that, The first rotating rod (3) is rotatably installed at the center of the support frame (1). Mounting frames (4) are provided on the inner walls of both ends of the support frame (1). A rotation drive assembly for driving the first rotating rod (3) to rotate is installed on the mounting frame (4) at the top. A support frame (9) is fixedly installed on the first rotating rod (3). Several mounting seats (10) are evenly spaced at the bottom of the support frame (9). Several blood storage tubes (11) are inserted into the top of the mounting seats (10). A pair of fixing plates (12) are fixedly installed on the outer wall of the left end of the support frame (1). A second drive unit (13) is fixedly installed on the bottom fixing plate (12). A one-way screw (14) is installed on the motor shaft of the second drive unit (13). A slider (15) is threadedly connected to the one-way screw (14). A connecting plate (16) is provided on the slider (15). An extraction tube (17) is embedded on the connecting plate (16). An extraction component is provided at the bottom of the extraction tube (17). The connecting plate (16) is inlaid with a telescopic rod (21), the top of the telescopic rod (21) is provided with a connecting block (22), the bottom of the connecting block (22) is provided with a connecting rod (23), the bottom of the connecting rod (23) is slidably provided inside the extraction tube (17), and the bottom of the connecting rod (23) is provided with a piston plate (24), the piston plate (24) is provided with a sealing cavity (25), and the sealing cavity (25) is installed with a drainage component.

2. The blood extraction device for immunological detection according to claim 1, characterized in that, The support frame (1) has support feet (2) at its four bottom corners.

3. The blood extraction device for immunological detection according to claim 1, characterized in that, The rotation drive assembly includes a first drive unit (5) fixedly connected to the inner wall of the mounting frame (4). A second rotating rod (6) is provided on the output shaft of the first drive unit (5). A driving bevel gear (7) is mounted on the second rotating rod (6). A driven bevel gear (8) is meshed on the driving bevel gear (7). The driven bevel gear (8) is connected to the second rotating rod (6).

4. The blood extraction device for immunological detection according to claim 1, characterized in that, The extraction assembly includes an extraction needle tube (18) that is conductively connected to the bottom of the extraction tube (17), and a first one-way valve (19) is installed on the extraction needle tube (18).

5. The blood extraction device for immunological detection according to claim 1, characterized in that, The drainage assembly includes a connecting pipe (26) that is in communication with the piston plate (24), and a second check valve (27) is installed on the connecting pipe (26).

6. The blood extraction device for immunological detection according to claim 1, characterized in that, An opening (28) is provided on the support frame (1) located at the top of the extraction tube (17).