Portable blood sampling device for detecting pullorum disease

Abstract

The utility model discloses a portable blood sampling device for detecting pullorum disease, and belongs to the technical field of detection instruments. Comprising a needle cylinder, a blood taking needle is fixed to the middle of the bottom of the needle cylinder, a rubber plug is arranged on the lower portion in the needle cylinder, a push rod is fixed to the middle of the top of the rubber plug, a push handle is fixed to the top of the push rod, a limiting device is arranged above the rubber plug, and a mounting block is arranged on the top of the needle cylinder. A first through hole is formed in the middle of the top of the mounting block, the upper portion of the push rod penetrates through the interior of the first through hole, and a connecting device is arranged at the top of the mounting block. The needle cylinder and the push rod can be conveniently and rapidly disassembled and assembled through the connecting device, the mounting block part and the needle cylinder part can be separated by pressing the fixing block to lift the mounting block upwards, when assembling is needed, the fixing block is located over the fixing hole, the connecting block is inserted into the upper portion of the interior of the needle cylinder, and when the fixing block is opposite to the fixing hole in position, the needle cylinder and the push rod can be assembled. And the fixing blocks are inserted into the fixing holes under the action of the springs.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a portable blood collection device for detecting pullorum disease in chickens. Background Technology

[0002] Currently, most breeder farms use on-site whole blood plate agglutination tests to purify their flocks. The common method involves puncturing the wing vein with a lancet, collecting blood onto the skin near the vein, and then using a pipette to transfer 50 µL of blood onto a reaction plate. This plate is then mixed with 50 µL of pre-added pullorum antigen for an antigen-antibody reaction. This test is highly sensitive, simple to operate, and fast, making it convenient for practical application. However, this method has several drawbacks: some chickens' blood may not flow easily, the tested blood may be exposed, the amount of bleeding is difficult to control, cross-infection is possible, and the testing process is complex. These issues not only affect the speed of pullorum detection and cause unnecessary nutrient loss but also contribute to the spread of the disease within the flock.

[0003] To address the above problems, existing technology (publication number CN213696928U) discloses a portable blood collection device for detecting pullorum disease in chickens. The device includes a needle holder, a needle fixed to the needle holder, and a needle sleeve fitted over the needle holder to accommodate the needle. The needle holder also includes a suction tube and a suction bag. One end of the suction tube is integrally connected to the suction bag, and the other end is a free end. The needle holder has a docking hole at the end away from the needle. The free end of the suction tube is detachably connected to the docking hole. This invention has advantages such as high practicality, low cost, small blood collection volume, and high biosafety level, and will strongly promote the detection and purification of pullorum disease in breeding farms.

[0004] However, the above-mentioned device controls the blood collection volume through the suction bag, and there is a possibility that the suction bag may not fully rebound, resulting in an inaccurate blood collection volume, which affects the blood collection and monitoring results. Utility Model Content

[0005] Purpose of the invention: The main technical problem to be solved by this utility model is to provide a portable blood collection device for detecting pullorum disease in chickens, which can solve the problem of inaccurate blood collection caused by incomplete rebound of the suction bag.

[0006] Technical Solution: To solve the above-mentioned technical problems, according to one aspect of this utility model, more specifically, a portable blood collection device for detecting pullorum disease in chickens, including a syringe, a blood collection needle fixed in the middle of the bottom of the syringe, a rubber stopper provided at the lower part of the inside of the syringe, a push rod fixed in the middle of the top of the rubber stopper, a push handle fixed at the top of the push rod, a limiting device provided above the rubber stopper, a mounting block provided at the top of the syringe, a first through hole opened in the middle of the top of the mounting block, the upper part of the push rod passing through the interior of the first through hole, and a connecting device provided at the top of the mounting block.

[0007] Furthermore, the limiting device includes a limiting block, a second through hole is provided in the top center of the limiting block, the lower part of the push rod passes through the interior of the second through hole, and an installation hole is provided in the top center right side of the mounting block. A bolt is rotatably connected inside the installation hole, and an internally threaded tube is screwed to the lower part of the outer wall of the bolt. The bottom of the internally threaded tube is fixed to the top center right side of the limiting block.

[0008] Furthermore, the connecting device includes a connecting block, which is fixed to the bottom center of the mounting block and inserted into the upper part of the syringe. The connecting block has symmetrical mounting grooves on its outer wall at the front and rear center. A spring is fixed to the bottom of the mounting groove, and a fixing block is fixed to the end of the spring away from the bottom of the mounting groove. The syringe has symmetrical fixing holes on its upper outer wall at the front and rear, and the fixing block is inserted into the fixing holes. A third through hole is opened on the right side of the top center of the connecting block, and the upper part of the bolt passes through the third through hole. A fourth through hole is opened on the top of the connecting block below the first through hole, and the upper part of the push rod passes through the fourth through hole.

[0009] Furthermore, the outer wall of the syringe is provided with graduation lines.

[0010] Furthermore, the outer wall of the connecting block is attached to the upper part of the inner wall of the syringe.

[0011] Furthermore, the diameter of the fixing block is equal to the diameter of the fixing hole.

[0012] Beneficial effects: The connecting device allows for convenient and quick disassembly and assembly of the syringe and plunger. Simply press and pull the mounting block upwards to separate the mounting block from the syringe. For assembly, position the mounting block directly above the fixing hole and insert the connecting block into the upper part of the syringe. When the mounting block and fixing hole are aligned, the spring will cause the mounting block to engage with the fixing hole, completing the assembly. Simultaneously, rotating the bolt, in conjunction with the internal threaded tube, moves the limiting block up and down. This allows for adjustment of the limiting block's position before blood collection to the required volume. During blood collection, blood can be drawn directly until the top of the rubber stopper contacts the bottom of the limiting block; the stopper should not move further, indicating the desired blood volume. This avoids inaccurate blood volume readings during the collection process, which could affect subsequent testing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the blood collection device;

[0014] Figure 2 This is a schematic diagram of the mounting block structure;

[0015] Figure 3This is a schematic diagram of the limiting block structure;

[0016] Figure 4 This is a schematic diagram of the connecting block structure;

[0017] Figure 5 This is a schematic diagram of the syringe and fixing hole structure. Detailed Implementation

[0018] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] According to one aspect of this utility model, such as Figure 1-5 As shown, a portable blood collection device for detecting pullorum disease in chickens is provided, including a syringe 1, a blood collection needle 2 fixed in the middle of the bottom of the syringe 1, a rubber stopper 3 located at the lower part of the inside of the syringe 1, a push rod 4 fixed in the middle of the top of the rubber stopper 3, a push handle 5 fixed in the top of the push rod 4, a limiting device 6 located above the rubber stopper 3, a mounting block 7 located at the top of the syringe 1, a first through hole 11 opened in the middle of the top of the mounting block 7, the upper part of the push rod 4 passing through the inside of the first through hole 11, and a connecting device 8 located at the top of the mounting block 7. The limiting device 6 can be adjusted before blood collection. When blood is drawn, the rubber stopper 3 is limited by the limiting device 6 to achieve the required blood volume, avoiding the influence of observing the blood volume during the blood collection process on the operation. The connecting device 8 can facilitate quick and easy disassembly and assembly of the syringe 1 and the push rod 4.

[0021] The limiting device 6 includes a limiting block 13. A second through hole 14 is provided in the middle of the top of the limiting block 13. The lower part of the push rod 4 passes through the interior of the second through hole 14. A mounting hole 12 is provided in the middle right of the top of the mounting block 7. A bolt 9 is rotatably connected inside the mounting hole 12. An internal threaded tube 10 is screwed to the lower part of the outer wall of the bolt 9. The bottom of the internal threaded tube 10 is fixed to the middle right of the top of the limiting block 13. Rotating the bolt 9 can drive the limiting block 13 to move up and down with the cooperation of the internal threaded tube 10, thereby adjusting the position of the limiting block 13 according to the blood drawing volume.

[0022] The connecting device 8 includes a connecting block 15, which is fixed to the bottom center of the mounting block 7. The connecting block 15 is inserted into the upper part of the inside of the syringe 1. The outer wall of the connecting block 15 has symmetrical mounting grooves 16 at the front and rear center. A spring 17 is fixed to the bottom of the mounting groove 16. A fixing block 18 is fixed to the end of the spring 17 away from the bottom of the mounting groove 16. Fixing holes 21 are symmetrically opened at the front and rear of the upper part of the outer wall of the syringe 1. The fixing block 18 is inserted into the inside of the fixing holes 21. A third through hole 19 is opened on the right side of the top center of the connecting block 15. The upper part of the bolt 9 passes through the hole. Inside the third through hole 19, the top of the connecting block 15 is located below the first through hole 11 and a fourth through hole 20 is provided. The upper part of the push rod 4 passes through the fourth through hole 20. When disassembling, press the fixing block 18 and pull the mounting block 7 upward to separate the mounting block 7 from the syringe 1. When assembling, position the fixing block 18 directly above the fixing hole 21 and insert the connecting block 15 into the upper part of the syringe 1. When the fixing block 18 and the fixing hole 21 are in opposite positions, the fixing block 18 is inserted into the fixing hole 21 under the action of the spring 17, and the assembly is completed.

[0023] The outer wall of syringe 1 is equipped with graduation lines, which can be used to adjust the required blood draw volume.

[0024] The outer wall of the connecting block 15 fits against the upper part of the inner wall of the syringe 1, ensuring that the connecting block 15 can be inserted into the upper part of the syringe 1.

[0025] The diameter of the fixing block 18 is equal to the diameter of the fixing hole 21, ensuring that the fixing block 18 can be inserted into the fixing hole 21.

[0026] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A portable blood collection device for detecting pullorum disease in chickens, comprising a syringe (1), characterized in that: A blood collection needle (2) is fixed in the middle of the bottom of the syringe (1). A rubber stopper (3) is provided at the bottom of the syringe (1). A push rod (4) is fixed in the middle of the top of the rubber stopper (3). A push handle (5) is fixed in the top of the push rod (4). A limiting device (6) is provided above the rubber stopper (3). A mounting block (7) is provided at the top of the syringe (1). A first through hole (11) is opened in the middle of the top of the mounting block (7). The upper part of the push rod (4) passes through the interior of the first through hole (11). A connecting device (8) is provided at the top of the mounting block (7).

2. The portable blood collection device for detecting pullorum disease in chickens according to claim 1, characterized in that: The limiting device (6) includes a limiting block (13), a second through hole (14) is provided in the middle of the top of the limiting block (13), the lower part of the push rod (4) passes through the interior of the second through hole (14), the mounting block (7) has a mounting hole (12) provided in the middle right of the top, a bolt (9) is rotatably connected inside the mounting hole (12), an internal threaded tube (10) is screwed to the lower part of the outer wall of the bolt (9), and the bottom of the internal threaded tube (10) is fixed to the middle right of the top of the limiting block (13).

3. The portable blood collection device for detecting pullorum disease in chickens according to claim 2, characterized in that: The connecting device (8) includes a connecting block (15), which is fixed to the bottom center of the mounting block (7). The connecting block (15) is inserted into the upper interior of the syringe (1). The outer wall of the connecting block (15) has symmetrically arranged mounting grooves (16) at its front and rear center. A spring (17) is fixed to the bottom of the mounting groove (16), and a fixing block (18) is fixed to one end of the spring (17) away from the bottom of the mounting groove (16). The syringe (1)... A fixing hole (21) is symmetrically provided on the front and back sides of the upper part of the outer wall. The fixing block (18) is inserted into the fixing hole (21). A third through hole (19) is provided on the right side of the top middle part of the connecting block (15). The upper part of the bolt (9) passes through the third through hole (19). A fourth through hole (20) is provided on the top of the connecting block (15) below the first through hole (11). The upper part of the push rod (4) passes through the fourth through hole (20).

4. The portable blood collection device for detecting pullorum disease in chickens according to claim 1, characterized in that: The outer wall of the syringe (1) is provided with scale lines.

5. A portable blood collection device for detecting pullorum disease in chickens according to claim 3, characterized in that: The outer wall of the connecting block (15) is attached to the upper part of the inner wall of the syringe (1).

6. A portable blood collection device for detecting pullorum disease in chickens according to claim 3, characterized in that: The diameter of the fixing block (18) is equal to the diameter of the fixing hole (21).

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