Subcutaneous sampling detection device for animal husbandry veterinary practical operation

Abstract

The invention discloses a subcutaneous sampling detection device for animal husbandry and veterinary practical operation, and relates to the technical field of animal husbandry and veterinary practical operation, the subcutaneous sampling detection device comprises a base and a control module, the upper side of the base is rotatably connected with a rotating disc through a bearing, and two telescopic supporting rods are hinged to the upper side of the rotating disc; a sampling mechanism is arranged at the upper end of the telescopic supporting rod and comprises a connecting assembly, a sampling needle on the connecting assembly, a sampling cavity on the lower side of the sampling needle and an extrusion block, the sampling needle can rotate relative to the base and can ascend and descend relative to the base, and the lower end of the sampling needle is used for stretching into the subcutaneous part of an animal. The control module drives the electric telescopic rod to drive the connecting sleeve to achieve rapid downward probing of the sampling needle, it can be ensured that the needle body vertically enters subcutaneous tissue and rapidly pierces the subcutaneous tissue, then the wound area is reduced, the operation time is shortened, and the device has the advantages of being high in practicability and overcoming the defects that in the prior art, operation is unstable, and a wound is too large.

Description

Technical Field

[0001] This invention relates to the field of animal husbandry and veterinary medicine practice technology, specifically to a subcutaneous sampling and testing device for animal husbandry and veterinary medicine practice. Background Technology

[0002] In the process of animal husbandry and animal medical testing, the collection of subcutaneous tissue and tissue fluid is a common and crucial operation, mainly used for disease monitoring, vaccine immunization efficacy evaluation, and nutritional metabolism testing.

[0003] Tissue and tissue fluid samples obtained through subcutaneous sampling can provide accurate evidence for disease diagnosis and are of great significance for ensuring the health and production efficiency of livestock farming.

[0004] Existing subcutaneous sampling methods typically rely on manual needle insertion. The procedure generally involves disinfecting the animal's skin, then manually inserting the needle to a predetermined depth to extract tissue or tissue fluid. While this method is simple and inexpensive, it suffers from several drawbacks in practice: First, the angle and depth of needle insertion depend on the operator's experience, making it difficult to standardize and often resulting in excessively large wounds or sampling location deviations, thus affecting sample representativeness and test accuracy. Second, tissue fluid is prone to spillage or contamination during collection, and the lack of a sealed internal structure makes it difficult to guarantee sample quality. Third, for multi-level or different depth sampling, existing methods often require repeated punctures, increasing animal pain and stress, and significantly raising the risk of infection. Finally, the manual operation is cumbersome and inefficient, making it unsuitable for large-scale livestock farming.

[0005] In summary, existing subcutaneous sampling techniques still suffer from problems such as strong operational dependence, difficulty in accurately controlling sampling depth, easy sample contamination, and difficulty in multi-level collection, resulting in insufficient reliability of test results and increased animal suffering.

[0006] Therefore, the core problem to be solved by this invention is: how to provide a subcutaneous sampling and testing device for animal husbandry and veterinary practice that is structurally reasonable, easy to operate, has controllable sampling depth, can achieve multi-level sampling and ensure that the sample is sealed and intact, so as to overcome the shortcomings of the prior art such as unstable operation, excessive wound, easy sample contamination and increased animal suffering. Summary of the Invention

[0007] The purpose of this invention is to provide a subcutaneous sampling and testing device for practical use in animal husbandry and veterinary medicine, so as to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a subcutaneous sampling and detection device for animal husbandry and veterinary practice, including a base and a control module. A turntable is rotatably connected to the upper side of the base via a bearing. Two telescopic support rods are hinged to the upper side of the turntable. A sampling mechanism is provided at the upper end of the telescopic support rods.

[0009] The sampling mechanism includes a connecting component, a sampling needle on the connecting component, a sampling chamber and a squeezing block on the lower side of the sampling needle, the sampling needle can rotate relative to the base, and the sampling needle can rise and fall relative to the base, the lower end of the sampling needle is used to penetrate the subcutaneous tissue of the animal.

[0010] The sampling chamber is a groove located on the lower side of the sampling needle, and the squeezing block is located inside the sampling chamber. The squeezing block is used to squeeze subcutaneous tissue into the sampling chamber for collection.

[0011] According to the above technical solution, the connecting assembly includes a fixed sleeve, the outer wall of which is hinged to the upper end of the telescopic support rod, a slide cylinder slidably connected to the inner wall of the fixed sleeve, the sampling needle being disposed inside the slide cylinder, a fixing ring threadedly connected to the upper outer wall of the slide cylinder, the inner wall of the slide cylinder contacting the outer wall of the sampling needle, an electric telescopic rod fixedly connected to the front side of the fixed sleeve, a connecting sleeve fixedly connected to the lower end of the electric telescopic rod, the rear side of the connecting sleeve being sleeved on the outer wall of the sampling needle, and the inner wall of the connecting sleeve being fixedly connected to the outer wall of the sampling needle by bolts.

[0012] According to the above technical solution, the center of the fixing sleeve, the sampling needle, the base, and the turntable are on the same central axis. The electric telescopic rod is electrically connected to the control module, and the electric telescopic rod is used to drive the sampling needle to rise and fall.

[0013] According to the above technical solution, a motor is fixedly connected to the upper side of the inner wall of the sampling needle, a threaded rod is fixedly connected to the output end of the motor, a moving rod is threadedly connected to the lower outer wall of the threaded rod, the outer wall of the moving rod is slidably connected to the inner wall of the sampling needle, a push rod is fixedly connected to the lower side of the moving rod, the lower end of the push rod extends through the sampling needle into the sampling chamber, the lower end of the push rod is fixedly connected to the upper surface of the squeezing block, and the outer wall of the squeezing block is in contact with the inner wall of the sampling chamber.

[0014] According to the above technical solution, the upper side of the extrusion block is columnar, the lower side of the extrusion block is hemispherical, the outer wall of the moving rod is hexagonal prism, the threaded rod is electrically connected to the control module, and the threaded rod is used to drive the moving rod to rise and fall.

[0015] According to the above technical solution, a diaphragm is provided inside the sampling chamber. The outer wall of the diaphragm is bonded to the inner wall of the sampling chamber, and the middle inner wall of the diaphragm is bonded to the outer wall of the push rod. The diaphragm is a circular elastic film with a hole in the center. The diaphragm is used to seal the point where the push rod penetrates the sampling needle.

[0016] According to the above technical solution, the sampling mechanism further includes a depth control mechanism, which includes a vertical rod. The lower end of the vertical rod is fixedly connected to the upper surface of the fixed sleeve. The upper surface of the fixed sleeve is also rotatably connected to a threaded height adjustment rod via a bearing. A first conductive block is provided on the outer side of the vertical rod and the threaded height adjustment rod. The outer wall of the threaded height adjustment rod is threadedly connected to the inner wall of the first conductive block. A second conductive block is fixedly connected to the inner wall of the sampling needle.

[0017] According to the above technical solution, one end of the first conductive block extends to the lower side of the second conductive block. The first conductive block and the second conductive block are electrically connected to the control module. After the first conductive block contacts the second conductive block, the motor is started. The threaded height adjustment rod is used to adjust the height of the first conductive block.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting up a sampling needle, a sliding cylinder, a fixing ring, and an electric telescopic rod, can fix the sampling needle relative to the needle sleeve sliding cylinder before insertion, avoiding shaking during operation; the threaded tightening action of the fixing ring can enhance the stability between the needle body and the needle sleeve, preventing displacement; the control module drives the electric telescopic rod to move the connecting sleeve to realize the rapid downward insertion of the sampling needle, which can ensure that the needle body enters the subcutaneous tissue vertically and completes the insertion quickly, thereby reducing the wound area, shortening the operation time, improving the sampling accuracy, and reducing damage to animal tissues, significantly improving the safety and convenience of operation.

[0019] Equipped with a motor, threaded rod, moving rod, push rod, sampling chamber, squeezing block, and diaphragm, this device enables the directional collection of subcutaneous tissue and tissue fluid within the needle body. The threaded transmission structure between the moving rod and the threaded rod allows for smooth downward movement, gradually extending the push rod and squeezing block to ensure controllable sampling. The special hemispherical structure of the squeezing block effectively receives the tissue and squeezes it into the sampling chamber for collection. Simultaneously, the elastic membrane structure of the diaphragm forms a seal when the push rod penetrates the sampling needle, preventing tissue fluid from contaminating the needle body. This allows for rapid, safe, and efficient sampling while maintaining a small incision, reducing animal discomfort and improving sample quality.

[0020] By incorporating a telescopic support rod and an electric telescopic rod, the length of the telescopic support rod can be adjusted according to sampling requirements before assembling the sampling needle. This precisely limits the extension and retraction stroke of the electric telescopic rod, ensuring that the insertion depth of the sampling needle is completely consistent with the preset sampling depth. This adjustment method not only guarantees the accuracy of the needle insertion depth but also avoids sampling problems caused by insufficient operator experience, such as sampling too deep or too shallow. It significantly improves the consistency and stability of sampling results, thereby ensuring the reliability of experimental or testing data. At the same time, it shortens operation time, reduces operator workload, and improves work efficiency.

[0021] By incorporating a depth control mechanism, a vertical rod, a threaded height adjustment rod, a first conductive block, and a second conductive block, multi-level and multi-depth continuous sampling can be achieved under the same wound conditions. The height of the first conductive block can be adjusted step-by-step by rotating the threaded height adjustment rod, thereby controlling the trigger depth when the second conductive block contacts the first. After the second conductive block contacts the first conductive block and forms a current path, the control module immediately drives the motor to initiate sampling, automating the sampling process. This structure allows for multiple samplings at progressively deeper levels while maintaining a constant wound size. This avoids repeated incisions of the animal's skin, preventing additional damage, and ensures the integrity and representativeness of tissue samples from different layers, thus improving the efficiency and scientific rigor of the sampling process. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the lower structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the turntable structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the sampling mechanism structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the disassembled structure of the sampling mechanism of the present invention;

[0028] Figure 6 This is a schematic diagram of the depth control mechanism of the present invention;

[0029] Figure 7 This is a schematic diagram of the internal structure of the sampling needle of the present invention;

[0030] In the diagram: 1. Base; 2. Turntable; 3. Telescopic support rod; 4. Sampling mechanism; 41. Fixing sleeve; 42. Slide cylinder; 43. Sampling needle; 44. Fixing ring; 45. Electric telescopic rod; 46. Connecting sleeve; 47. Motor; 48. Threaded rod; 49. Moving rod; 410. Push rod; 411. Sampling chamber; 412. Squeezing block; 413. Depth control mechanism; 414. Diaphragm; 31. Vertical pole; 32. Threaded height adjustment rod; 33. First conductive block; 34. Second conductive block. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figure 1-7 The present invention provides a technical solution: a subcutaneous sampling and testing device for animal husbandry and veterinary practice, including a base 1 and a control module. A turntable 2 is rotatably connected to the upper side of the base 1 via a bearing. Two telescopic support rods 3 are hinged to the upper side of the turntable 2. A sampling mechanism 4 is provided at the upper end of the telescopic support rods 3.

[0033] The sampling mechanism 4 includes a connecting assembly, a sampling needle 43 on the connecting assembly, a sampling chamber 411 below the sampling needle 43, and a squeezing block 412. The sampling needle 43 can rotate relative to the base 1 and can rise and fall relative to the base 1. The lower end of the sampling needle 43 is used to penetrate the subcutaneous tissue of an animal. The connecting assembly includes a fixing sleeve 41. The outer wall of the fixing sleeve 41 is hinged to the upper end of the telescopic support rod 3. A slide cylinder 42 is slidably connected to the inner wall of the fixing sleeve 41. The sampling needle 43 is disposed inside the slide cylinder 42. A fixing rod is threadedly connected to the upper outer wall of the slide cylinder 42. The inner wall of the ring 44 and the slide cylinder 42 contacts the outer wall of the sampling needle 43. An electric telescopic rod 45 is fixedly connected to the front side of the fixed sleeve 41. A connecting sleeve 46 is fixedly connected to the lower end of the electric telescopic rod 45. The rear side of the connecting sleeve 46 is sleeved on the outer wall of the sampling needle 43. The inner wall of the connecting sleeve 46 is fixedly connected to the outer wall of the sampling needle 43 by bolts. The center of the fixed sleeve 41, the sampling needle 43, the base 1, and the turntable 2 is the same central axis. The electric telescopic rod 45 is electrically connected to the control module and is used to drive the sampling needle 43 to rise and fall.

[0034] Before performing subcutaneous sampling on livestock, the sampling area should be disinfected and an incision made. The sampling device should also be disinfected. Before using the device, the sampling needle 43 is inserted into the slide tube 42 so that the lower side of the sampling needle 43 is on the same plane as the lower side of the base 1. Then, the fixing ring 44 is rotated to tighten the upper side of the slide tube 42, thereby fixing the slide tube 42 and the sampling needle 43 relative to each other. Then, the lower side of the base 1 is brought into close contact with the animal's skin. The connecting sleeve 46 is pushed down by the electric telescopic rod 45, which in turn causes the connecting sleeve 46 to move the sampling needle 43 down to probe the inner side of the livestock's skin for sampling. Since the sampling needle 43 is perpendicular to the wound and has a fast extension and retraction speed, it can be easy to operate, with a small wound and fast operation.

[0035] Example 2: Please refer to Figure 1-7Based on Embodiment 1, the present invention provides the following technical solution: A motor 47 is fixedly connected to the upper side of the inner wall of the sampling needle 43; a threaded rod 48 is fixedly connected to the output end of the motor 47; a moving rod 49 is threadedly connected to the lower outer wall of the threaded rod 48; the outer wall of the moving rod 49 is slidably connected to the inner wall of the sampling needle 43; a push rod 410 is fixedly connected to the lower side of the moving rod 49; the sampling cavity 411 is a groove formed on the lower side of the sampling needle 43; a squeezing block 412 is located inside the sampling cavity 411; the squeezing block 412 is used to squeeze subcutaneous tissue into the sampling cavity 411 for collection; the lower end of the push rod 410 extends through the sampling needle 43 into the sampling cavity 411; the push rod 410... The lower end of 10 is fixedly connected to the upper surface of the extrusion block 412. The outer wall of the extrusion block 412 is in contact with the inner wall of the sampling chamber 411. The upper side of the extrusion block 412 is columnar, and the lower side of the extrusion block 412 is hemispherical. The outer wall of the moving rod 49 is hexagonal prism. The threaded rod 48 is electrically connected to the control module. The threaded rod 48 is used to drive the moving rod 49 to rise and fall. A diaphragm 414 is provided inside the sampling chamber 411. The outer wall of the diaphragm 414 is bonded to the inner wall of the sampling chamber 411. The middle inner wall of the diaphragm 414 is bonded to the outer wall of the push rod 410. The diaphragm 414 is a circular elastic film with a hole in the center. The diaphragm 414 is used to seal the point where the push rod 410 penetrates the sampling needle 43.

[0036] After the lower end of the sampling needle 43 reaches the subcutaneous tissue of the animal, the control module starts the motor 47, which drives the threaded rod 48 to rotate. Since the outer wall of the threaded rod 48 is threadedly connected to the inner wall of the moving rod 49, the rotation of the threaded rod 48 pushes the moving rod 49 downward, causing the moving rod 49 to push the push rod 410 and the squeezing block 412 downward, so that the squeezing block 412 moves out of the sampling chamber 411. At this time, the subcutaneous tissue and tissue fluid of the animal will be squeezed and deformed by the base 1 to the upper side of the squeezing block 412. Then the motor 47 reverses the threaded rod 48. The threaded rod 48 drives the moving rod 49, the push rod 410, and the squeezing block 412 to move upward. When the squeezing block 412 moves upward, it squeezes some subcutaneous tissue and tissue fluid into the sampling chamber 411, thereby completing the sampling. During this process, the diaphragm 414 seals the position where the push rod 410 penetrates the sampling needle 43, preventing tissue fluid from contaminating the inside of the sampling needle 43. Subsequently, as the electric telescopic rod 45 retracts, the sampling needle 43 can be pulled out of the animal's body, thereby completing rapid sampling through small wounds and reducing the agitation of tissues inside the wound, thus reducing the animal's pain.

[0037] Example 3: Please refer to Figure 1-7Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: when the control module actively starts the motor 47, the electric telescopic rod 45 has a fixed stroke. Before installing the sampling needle 43, the length of the telescopic support rod 3 can be adjusted according to the actual length of the sampling needle 43 and the required sampling depth, so that it can be adapted to the distance between the lower end of the sampling needle 43 and the sampling depth, so that the telescopic distance of the electric telescopic rod 45 is equal to the sampling depth, and the sampling operation can be completed quickly.

[0038] Example 4: Please refer to Figure 1-7 Based on Embodiments 1, 2, and 3, the present invention provides a technical solution: the sampling mechanism 4 further includes a depth control mechanism 413, the depth control mechanism 413 includes a vertical rod 31, the lower end of the vertical rod 31 is fixedly connected to the upper surface of the fixed sleeve 41, the upper surface of the fixed sleeve 41 is also rotatably connected to a threaded height adjustment rod 32 through a bearing, a first conductive block 33 is provided on the outer side of the vertical rod 31 and the threaded height adjustment rod 32, the outer wall of the threaded height adjustment rod 32 is threadedly connected to the inner wall of the first conductive block 33, a second conductive block 34 is fixedly connected to the inner wall of the sampling needle 43, one end of the first conductive block 33 extends to the lower side of the second conductive block 34, the first conductive block 33 and the second conductive block 34 are respectively electrically connected to the control module, the motor 47 is started after the first conductive block 33 contacts the second conductive block 34, and the threaded height adjustment rod 32 is used to adjust the height of the first conductive block 33;

[0039] When multiple samplings need to be performed by gradually penetrating deeper into the body, the distance between the first conductive block 33 and the second conductive block 34 can be adjusted by rotating the threaded height adjustment rod 32. When the electric telescopic rod 45 pushes the sampling needle 43 downward, the sampling needle 43 will drive the second conductive block 34 downward to contact the first conductive block 33. After the second conductive block 34 contacts the first conductive block 33, a current path will be formed. At this time, the control module receives the signal and immediately starts the motor 47 to complete one sampling and retracts the electric telescopic rod 45 to remove the sample. Therefore, in the step-by-step operation, the staff can gradually adjust the height of the first conductive block 33 by rotating the threaded height adjustment rod 32 to perform multiple samplings at different depths of the same wound, and keep the sampling depth accurate and controllable.

[0040] By incorporating a sampling needle 43, a sliding cylinder 42, a fixing ring 44, and an electric telescopic rod 45, the sampling needle 43 can be stably fixed to the needle sheath before sampling, and rapidly penetrate subcutaneously under the drive of the control module, ensuring vertical and accurate sampling, reducing the wound size, and improving sampling efficiency. By incorporating a motor 47, a threaded rod 48, a moving rod 49, a push rod 410, a sampling chamber 411, a squeezing block 412, and a diaphragm 414, tissue and tissue fluid can be collected inside the needle body. The threaded drive and diaphragm 414 provide a sealed protection, preventing contamination and ensuring controllable sampling volume, thus achieving efficient collection even with small incisions. The cooperation between the telescopic support rod 3 and the electric telescopic rod 45 allows the length of the telescopic support rod 3 to be adjusted before installation to limit the telescopic stroke of the electric telescopic rod 45, ensuring that the depth of penetration is consistent with the preset sampling depth, avoiding human error, and guaranteeing the accuracy and consistency of sampling results. By setting up a depth control mechanism 413, a vertical rod 31, a threaded height adjustment rod 32, a first conductive block 33, and a second conductive block 34, multiple samplings at different depths can be achieved under the same wound through step-by-step adjustment, and sampling is automatically triggered after the current path is formed. This maintains the efficiency and accuracy of the sampling process, reduces secondary damage to the animal, and improves the integrity and representativeness of the sample.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A subcutaneous sampling and testing device for practical use in animal husbandry and veterinary medicine, comprising a base (1) and a control module, characterized in that: The upper side of the base (1) is rotatably connected to a turntable (2) via a bearing. Two telescopic support rods (3) are hinged to the upper side of the turntable (2). A sampling mechanism (4) is provided at the upper end of the telescopic support rods (3). The sampling mechanism (4) includes a connecting component, a sampling needle (43) on the connecting component, a sampling chamber (411) on the lower side of the sampling needle (43), and a squeezing block (412). The sampling needle (43) can rotate relative to the base (1) and can rise and fall relative to the base (1). The lower end of the sampling needle (43) is used to probe under the skin of an animal. The sampling chamber (411) is a groove opened on the lower side of the sampling needle (43). The squeezing block (412) is located inside the sampling chamber (411) and is used to squeeze subcutaneous tissue into the sampling chamber (411) for collection.

2. The subcutaneous sampling and testing device for animal husbandry and veterinary practice according to claim 1, characterized in that: The connecting assembly includes a fixed sleeve (41), the outer wall of which is hinged to the upper end of the telescopic support rod (3), a slide cylinder (42) is slidably connected to the inner wall of the fixed sleeve (41), the sampling needle (43) is disposed inside the slide cylinder (42), a fixing ring (44) is threadedly connected to the upper outer wall of the slide cylinder (42), the inner wall of the slide cylinder (42) is in contact with the outer wall of the sampling needle (43), an electric telescopic rod (45) is fixedly connected to the front side of the fixed sleeve (41), a connecting sleeve (46) is fixedly connected to the lower end of the electric telescopic rod (45), the rear side of the connecting sleeve (46) is sleeved on the outer wall of the sampling needle (43), and the inner wall of the connecting sleeve (46) is fixedly connected to the outer wall of the sampling needle (43) by bolts.

3. The subcutaneous sampling and testing device for animal husbandry and veterinary practice according to claim 2, characterized in that: The fixed sleeve (41), sampling needle (43), base (1), and turntable (2) are all on the same central axis. The electric telescopic rod (45) is electrically connected to the control module and is used to drive the sampling needle (43) to rise and fall.

4. The subcutaneous sampling and testing device for animal husbandry and veterinary practice according to claim 3, characterized in that: A motor (47) is fixedly connected to the upper inner wall of the sampling needle (43). A threaded rod (48) is fixedly connected to the output end of the motor (47). A moving rod (49) is threadedly connected to the lower outer wall of the threaded rod (48). The outer wall of the moving rod (49) is slidably connected to the inner wall of the sampling needle (43). A push rod (410) is fixedly connected to the lower side of the moving rod (49). The lower end of the push rod (410) extends through the sampling needle (43) into the sampling chamber (411). The lower end of the push rod (410) is fixedly connected to the upper surface of the squeezing block (412). The outer wall of the squeezing block (412) is in contact with the inner wall of the sampling chamber (411).

5. The subcutaneous sampling and testing device for animal husbandry and veterinary practice according to claim 4, characterized in that: The upper side of the extrusion block (412) is columnar, the lower side of the extrusion block (412) is hemispherical, the outer wall of the moving rod (49) is hexagonal prism, the threaded rod (48) is electrically connected to the control module, and the threaded rod (48) is used to drive the moving rod (49) to rise and fall.

6. The subcutaneous sampling and detection device for animal husbandry and veterinary practice according to claim 5, characterized in that: The sampling chamber (411) is provided with a diaphragm (414). The outer wall of the diaphragm (414) is bonded to the inner wall of the sampling chamber (411). The middle inner wall of the diaphragm (414) is bonded to the outer wall of the push rod (410). The diaphragm (414) is a circular elastic film with a hole in the center. The diaphragm (414) is used to seal the point where the push rod (410) penetrates the sampling needle (43).

7. The subcutaneous sampling and testing device for animal husbandry and veterinary practice according to claim 6, characterized in that: The sampling mechanism (4) further includes a depth control mechanism (413), which includes a pole (31). The lower end of the pole (31) is fixedly connected to the upper surface of the fixed sleeve (41). The upper surface of the fixed sleeve (41) is also rotatably connected to a threaded height adjustment rod (32) via a bearing. A first conductive block (33) is provided on the outside of the pole (31) and the threaded height adjustment rod (32). The outer wall of the threaded height adjustment rod (32) is threadedly connected to the inner wall of the first conductive block (33). A second conductive block (34) is fixedly connected to the inner wall of the sampling needle (43).

8. The subcutaneous sampling and testing device for animal husbandry and veterinary practice according to claim 7, characterized in that: One end of the first conductive block (33) extends to the lower side of the second conductive block (34). The first conductive block (33) and the second conductive block (34) are electrically connected to the control module respectively. After the first conductive block (33) contacts the second conductive block (34), the motor (47) is started. The threaded height adjustment rod (32) is used to adjust the height of the first conductive block (33).

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