A large livestock blood sampling fixture

Abstract

The application discloses a large-scale livestock blood sampling fixing device, which comprises a base fixed on the ground, a feed trough is arranged at the front end of the base, a leg fixer is arranged at the back side of the feed trough and fixed on the base, a blood sampler support is arranged at the back end of the base, and a blood sampler is arranged on the blood sampler support; the blood sampler comprises a rotating shaft arranged on the blood sampler support, a nut for locking the rotating shaft is arranged at one end of the rotating shaft, two guards are hingedly arranged on the rotating shaft, the free ends of the two guards are clamped to each other through buckles, positioners are arranged on the two guards respectively, and a blood sampling needle is arranged on any one of the guards. The application can improve the defects of the prior art and improve the stability of tail vein blood sampling of large-scale livestock.

Description

Technical Field

[0001] This invention relates to a veterinary instrument, and more particularly to a blood collection and fixation device for large livestock. Background Technology

[0002] Regular blood sampling for testing is an important method for monitoring the health of livestock. For large animals, blood is usually drawn from the tail vein. Because blood sampling can cause significant stress in livestock, especially large animals, how to restrain and protect them to ensure stable blood collection has become a hot research topic in this field. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a blood collection and fixation device for large livestock, which overcomes the shortcomings of the prior art and improves the stability of blood collection from the tail vein of large livestock.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows.

[0005] A large livestock blood collection and restraint device includes a base fixed to the ground, a feed trough installed at the front end of the base, a leg restraint fixed to the base at the rear side of the feed trough, a blood collection device bracket installed at the rear end of the base, and a blood collection device mounted on the blood collection device bracket. The blood collection device includes a rotating shaft mounted on the blood collection device bracket, a nut for locking the rotating shaft installed at one end, two guard plates hinged to the rotating shaft, the free ends of the two guard plates being snapped together by a buckle, a locator installed on each of the two guard plates, and a blood collection needle installed on either guard plate.

[0006] Preferably, the leg restraint is provided with a guardrail on the outside, and the guardrail is fixed on the base.

[0007] Preferably, the positioner includes an adjusting rod threaded onto the guard plate, with a circular pressure plate movably mounted on one end of the adjusting rod located on the inner side of the guard plate. A rubber bladder is provided at the center of the surface of the circular pressure plate, and a number of flexible rubber columns are arranged in a ring around the edge of the surface of the circular pressure plate. A sliding groove is provided on the edge of the surface of the circular pressure plate, corresponding to the flexible rubber columns one by one, and the flexible rubber columns are slidably installed in the sliding groove.

[0008] Preferably, the rubber bladder is provided with a spring piece, the center of the spring piece is provided with a protrusion, the outer side of the protrusion is provided with a depression, the outer side of the depression is provided with a smooth part, the height of the depression is lower than that of the smooth part, and the height of the smooth part is lower than that of the protrusion.

[0009] Preferably, the blood collection needle includes an outer shell fixed to a protective plate, a rear cover installed at the rear end of the outer shell, a through groove provided on the side wall of the outer shell, an inner shell installed inside the outer shell, a needle slidably inserted into the inner shell, the needle being connected to an operating handle, the operating handle being located in the through groove, the rear end of the needle being connected to a vacuum blood collection tube via a flexible tube, and a notch for the flexible tube to pass through the rear cover.

[0010] Preferably, the end of the needle is connected to a flexible pad, which is mounted on a rigid pad, and the operating handle is fixed on the rigid pad. When no blood is being drawn, both the flexible pad and the rigid pad are located inside the inner shell. When blood is being drawn, the operating handle is pushed to puncture the tail of the livestock, and the flexible pad is pushed out of the inner shell.

[0011] The beneficial effects of adopting the above technical solution are as follows: the present invention integrates the blood collection needle into the blood collection fixation device, and improves the stability of tail fixation by improving the structure of the tail positioner, reducing the discomfort of livestock, and facilitating the collection of blood from the tail veins of large livestock. Attached Figure Description

[0012] Figure 1 This is a structural diagram of a specific embodiment of the present invention.

[0013] Figure 2 This is a structural diagram of a blood collection device according to a specific embodiment of the present invention.

[0014] Figure 3 This is a structural diagram of the locator in a specific embodiment of the present invention.

[0015] Figure 4 This is a cross-sectional view of the rubber bladder in a specific embodiment of the present invention.

[0016] Figure 5 This is a structural diagram of a blood collection needle in a specific embodiment of the present invention.

[0017] Figure 6 This is a structural diagram of a flexible pad in a specific embodiment of the present invention. Detailed Implementation

[0018] Reference Figure 1-6One specific embodiment of the present invention includes a base 1 fixed to the ground. A feed trough 2 is installed at the front end of the base 1, and a leg restraint 3 fixed to the base 1 is provided at the rear side of the feed trough 2. A blood collection device bracket 4 is installed at the rear end of the base 1, and a blood collection device 5 is installed on the blood collection device bracket 4. The blood collection device 5 includes a rotating shaft 6 installed on the blood collection device bracket 4. A nut 7 for locking the rotating shaft 6 is installed at one end of the rotating shaft 6. Two guard plates 8 are hinged to the rotating shaft 6. The free ends of the two guard plates 8 are interlocked by a buckle 9. A locator 10 is installed on each of the two guard plates 8, and a blood collection needle 11 is installed on either guard plate 8. A guardrail 12 is provided on the outside of the leg restraint 3 and is fixed to the base 1. During blood collection, feed is placed in the feed trough 2, the livestock is driven onto the base 1, and the legs of the livestock are fixed with the leg restraint 3 while the livestock is eating. Then the tail is placed in the guard plate 8 and the tail is fixed with the positioner 10. Then the blood collection needle is used to puncture and collect blood.

[0019] The positioner 10 includes an adjusting rod 13 threaded onto the guard plate 8. A circular pressure plate 14 is movably mounted on one end of the adjusting rod 13 inside the guard plate 8. A rubber bladder 15 is disposed at the center of the surface of the circular pressure plate 14. Several flexible rubber pillars 16 are arranged in a ring around the edge of the surface of the circular pressure plate 14. A groove 17 is disposed on the edge of the surface of the circular pressure plate 14, corresponding to each flexible rubber pillar 16. The flexible rubber pillars 16 are slidably mounted in the groove 17. A spring piece 18 is disposed inside the rubber bladder 15. A protrusion 19 is disposed at the center of the spring piece 18. A recess 20 is disposed on the outer side of the protrusion 19. A smooth part 21 is disposed on the outer side of the recess 20. The height of the recess 20 is lower than that of the smooth part 21, and the height of the smooth part 21 is lower than that of the protrusion 19. After the tail is placed into the guard plate 8, the adjusting rod 13 is rotated to press down the circular pressure plate 14, so that the rubber bladder 15 is pressed onto the tail. The corresponding flexible rubber pillars 16 are pressed into the sides of the tail to fix the tail. When the spring 18 inside the rubber bladder 15 is compressed, the protrusion 19 deforms downwards, while the concave portion 20 deforms upwards, squeezing the smooth portion 21 outwards. Through the deformation of the spring 18, the force applied to the tail clamp can be optimized, reducing the discomfort of the livestock.

[0020] The blood collection needle 11 includes an outer shell 22 fixed to a protective plate 8. A rear cover 23 is installed at the rear end of the outer shell 22. A through groove 24 is provided on the side wall of the outer shell 22. An inner shell 25 is installed inside the outer shell 22. A needle 26 is slidably inserted into the inner shell 25. The needle 26 is connected to an operating handle 27, which is located in the through groove 24. The rear end of the needle 26 is connected to a vacuum blood collection tube 29 via a flexible tube 28. A notch 30 for the flexible tube 28 to pass through is provided on the rear cover 23. A flexible pad 31 is connected to the end of the needle 26. The flexible pad 31 is installed on a rigid pad 32. The operating handle 27 is fixed on the rigid pad 32. When no blood is being collected, both the flexible pad 31 and the rigid pad 32 are located inside the inner shell 25. When blood is being collected, the operating handle 27 is pushed to puncture the tail of the livestock, pushing the flexible pad 31 out of the inner shell 25. After the needle 26 is inserted into the vein, the vacuum blood collection tube 29 is opened, and blood flows into the vacuum blood collection tube 29 under the action of pressure difference to achieve blood collection.

[0021] The flexible pad 31 enables a flexible connection between the needle 26 and the inner shell 25. During puncture, if the animal experiences muscle tension in its tail due to pain, the flexible pad allows for synchronized movement of the needle 26 and the puncture site, preventing the needle 26 from deviating from the vein. The flexible pad 31 has a through-hole 33 for the passage of the tubing 28. A spring 34 is fitted onto the outside of the tubing 28. A connecting frame 35 is provided at the connection between the flexible pad 31 and the needle 26. The spring 34 is connected to the connecting frame 35, and the inner side of the connecting frame 35 is connected to the needle 26 via an elastic bracket 36. The connecting frame 35 is used to fix the needle 26, improving its stability during puncture and ensuring uniform angular displacement between the needle 26 and the tubing 28, resulting in even force distribution on the needle 26.

[0022] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A large livestock blood collection and restraint device, comprising a base (1) fixed on the ground, characterized in that: The base (1) has a feed trough (2) installed at the front end, and a leg restraint (3) fixed on the base (1) is provided on the rear side of the feed trough (2). A blood collection device bracket (4) is installed at the rear end of the base (1), and a blood collection device (5) is installed on the blood collection device bracket (4). The blood collection device (5) includes a rotating shaft (6) installed on the blood collection device bracket (4). A nut (7) for locking the rotating shaft (6) is installed at one end of the rotating shaft (6). Two guard plates (8) are hinged on the rotating shaft (6). The free ends of the two guard plates (8) are snapped together by a buckle (9). A locator (10) is installed on each of the two guard plates (8). A blood collection needle (11) is installed on any one of the guard plates (8).

2. The large livestock blood collection and fixation device according to claim 1, characterized in that: The leg restraint (3) is provided with a guardrail (12) on the outside, and the guardrail (12) is fixed on the base (1).

3. The large livestock blood collection and fixation device according to claim 1, characterized in that: The positioner (10) includes an adjusting rod (13) threaded onto the guard plate (8). A circular pressure plate (14) is movably installed at one end of the adjusting rod (13) located inside the guard plate (8). A rubber bladder (15) is provided at the center of the surface of the circular pressure plate (14). Several flexible rubber columns (16) are arranged in a ring around the edge of the surface of the circular pressure plate (14). A sliding groove (17) corresponding to each of the flexible rubber columns (16) is provided on the edge of the surface of the circular pressure plate (14). The flexible rubber columns (16) are slidably installed in the sliding groove (17).

4. The large livestock blood collection and fixation device according to claim 3, characterized in that: The rubber bladder (15) is provided with a spring piece (18), the center of the spring piece (18) is provided with a protrusion (19), the outer side of the protrusion (19) is provided with a recess (20), the outer side of the recess (20) is provided with a smooth part (21), the height of the recess (20) is lower than that of the smooth part (21), and the height of the smooth part (21) is lower than that of the protrusion (19).

5. The large livestock blood collection and fixation device according to claim 4, characterized in that: The blood collection needle (11) includes an outer shell (22) fixed on a protective plate (8), a rear cover (23) installed at the rear end of the outer shell (22), a through groove (24) provided on the side wall of the outer shell (22), an inner shell (25) installed inside the outer shell (22), a needle (26) slidably inserted into the inner shell (25), the needle (26) is connected to the operating handle (27), the operating handle (27) is located in the through groove (24), the rear end of the needle (26) is connected to the vacuum blood collection tube (29) through a flexible tube (28), and a notch (30) is provided on the rear cover (23) for the flexible tube (28) to pass through.

6. The large livestock blood collection and fixation device according to claim 5, characterized in that: The end of the needle (26) is connected to a flexible pad (31), which is mounted on a rigid pad (32). The operating handle (27) is fixed on the rigid pad (32). When no blood is being drawn, both the flexible pad (31) and the rigid pad (32) are located inside the inner shell (25). When blood is being drawn, the operating handle (27) is pushed to puncture the tail of the animal, and the flexible pad (31) is pushed out of the inner shell (25).

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