Blood sampling device for veterinary use

Abstract

The utility model discloses a kind of blood sampling devices for livestock veterinarian, it is related to blood sampling device technical field, including: blood sampling needle tube, the end of blood sampling needle tube is equipped with needle head;Blood extraction device, blood extraction device is movably connected with blood sampling needle tube;Locking device, locking device is fixedly installed in the outside of blood sampling needle tube;Elastic propulsion device, elastic propulsion device is installed on blood sampling needle tube, by locking device to elastic propulsion device is unlocked, the elastic propulsion of elastic propulsion device to blood extraction device is carried out, to realize automatic negative pressure blood extraction.The utility model is supported to the elastic support of elastic propulsion device to the wear and insert mechanism, to push the connecting plate and drive piston block to move in the direction of away from blood sampling needle tube, so as to the inner cavity of blood sampling needle tube can be extracted to negative pressure state, realize automatic blood extraction, two hands are not needed simultaneously to the operation of blood sampling device, so as to better blood sampling to animal, effectively improve blood sampling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of blood collection device technology, specifically a blood collection device for animal husbandry and veterinary medicine. Background Technology

[0002] In the livestock farming industry, regular blood sampling by veterinarians is a crucial link in disease prevention and health monitoring, and its accuracy and efficiency directly affect animal disease diagnosis and farming efficiency. Currently, traditional blood sampling devices for livestock veterinarians mainly consist of syringes and vacuum blood collection tubes, which have significant drawbacks in practical operation.

[0003] When using a syringe to collect blood, it typically requires two workers: one to restrain the animal and the other to perform the blood collection. However, in real-world scenarios such as farms, staffing shortages are common. When only one person is available for blood collection, they must expend considerable effort to restrain agitated animals while simultaneously operating the syringe—using one hand to hold the syringe and the other to pull the plunger to create negative pressure for blood extraction. This makes the process extremely difficult, resulting in low efficiency and, due to the instability of single-handed operation, a high risk of needle displacement, causing severe stress in the animal and even vascular damage, affecting the accuracy of subsequent test results. Furthermore, frequent needle displacement can increase the risk of cross-infection, threatening animal health and livestock safety. Therefore, developing a blood collection device for animal husbandry and veterinary medicine that is easy for single-person operation and can effectively improve blood collection stability and efficiency is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a blood collection device for animal husbandry and veterinary medicine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blood collection device for animal husbandry and veterinary medicine, comprising:

[0006] A blood collection needle tube, wherein a needle tip is attached to the end of the blood collection needle tube;

[0007] A blood-drawing device, wherein the blood-drawing device is movably connected to a blood-collecting needle tube;

[0008] A locking device, which is fixedly installed on the outside of the blood collection needle tube;

[0009] An elastic propulsion device is installed on the blood collection needle tube. The elastic propulsion device is unlocked by the locking device, so that the elastic propulsion device can elastically push the blood collection device to achieve automatic negative pressure blood collection.

[0010] Preferably, the blood-drawing device includes:

[0011] A piston block, which is movably disposed inside the blood collection needle tube;

[0012] A connecting plate, wherein the piston block is fixedly connected to the connecting plate by a connecting rod;

[0013] An insertion mechanism is movably connected to the blood collection needle tube.

[0014] Preferably, the interpenetration mechanism includes:

[0015] A support rod, which is movably fitted with a blood collection needle tube, and one end of the support rod is fixedly connected to a connecting plate;

[0016] A skateboard, which is fixedly connected to the other end of a support rod;

[0017] An insert frame is fixedly connected to a slide plate. The insert frame has a first slot, and the locking device is engaged with the insert frame.

[0018] Preferably, the locking device includes:

[0019] A fixing base is fixedly installed on the outside of the blood collection needle tube;

[0020] The elastic snap-fit ​​mechanism is provided with a groove on the fixed base, and the elastic snap-fit ​​mechanism is installed inside the groove and is used to snap the insert bracket.

[0021] Preferably, the elastic snap-fit ​​mechanism includes:

[0022] A rocker arm, on which a rotating shaft is rotatably connected, and the rotating shaft is fixedly installed inside a groove;

[0023] The first locking block is movably engaged with the fixed base. The first locking block is T-shaped and engages with the inner cavity of the first locking groove. A cylinder is fixedly connected to the first locking block. A sliding groove is provided on the rocker arm, and the cylinder slides with the inner cavity of the sliding groove.

[0024] A first spring is installed inside the groove and is used to provide elastic support for the first locking block.

[0025] The pressing plate is fixedly connected to one end of the rocker arm.

[0026] Preferably, the elastic propulsion device includes:

[0027] The guide rod is fixedly installed inside the slot on the blood collection needle tube.

[0028] The second spring is movably sleeved on the outside of the guide rod;

[0029] An adjustable gear mechanism is adjustablely mounted on a guide rod.

[0030] Preferably, the adjustable gear mechanism includes:

[0031] A gear shift slide block, wherein the gear shift slide block is slidably engaged with a guide rod;

[0032] A pull rod, which is movably engaged with a stop slide, and the pull rod and the guide rod are arranged perpendicular to each other;

[0033] The second locking block is fixedly connected to one end of the pull rod, and the guide rod is provided with a plurality of second locking slots that cooperate with the second locking block;

[0034] The third spring is movably sleeved on the outside of the pull rod.

[0035] By adopting the above technical solution, the problem of traditional syringe blood collection requiring two people to cooperate and being difficult for a single person to operate has been solved.

[0036] Compared with existing technologies, the beneficial effects of this utility model are as follows: This animal veterinary blood collection device allows the operator to restrain the animal with one hand and hold the blood collection needle with the other. After inserting the needle into the animal's blood vessel, pressing and unlocking the elastic locking mechanism, and then using the elastic propulsion device to support the insertion mechanism, pushes the connecting plate to move the piston block away from the blood collection needle. This creates negative pressure in the inner cavity of the blood collection needle, enabling automatic blood collection. It eliminates the need for simultaneous operation of both hands, facilitating better blood collection from animals, unlike traditional syringes which require two-handed operation. This design greatly improves the feasibility of single-person operation. In situations where staffing is limited in farms, the operator can hold the animal with one hand and complete blood collection with the other, effectively improving blood collection efficiency. It also avoids needle displacement caused by unstable single-handed operation, reducing animal stress and the risk of vascular damage. Attached Figure Description

[0037] Figure 1 This is a front structural diagram of the present utility model.

[0038] Figure 2 This is a schematic diagram of the internal structure of the front of this utility model.

[0039] Figure 3 This is a schematic diagram of the internal structure of the locking device of this utility model.

[0040] Figure 4 This is a schematic diagram of the internal structure of the adjustable gear mechanism of this utility model.

[0041] In the diagram: 1. Blood collection needle; 2. Blood drawing device; 21. Piston block; 22. Connecting plate; 23. Insertion mechanism; 231. Support rod; 232. Slide plate; 233. Insertion frame; 3. Locking device; 31. Fixed seat; 32. Elastic locking mechanism; 321. Rocker arm; 322. First locking block; 323. First spring; 324. Pressing plate; 4. Elastic propulsion device; 41. Guide rod; 42. Second spring; 43. Adjustable gear mechanism; 431. Gear slide; 432. Pull rod; 433. Second locking block; 434. Third spring. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] This utility model provides, for example Figure 1-4 The illustrated blood collection device for animal husbandry and veterinary use includes: a blood collection needle tube 1 with a needle tip installed at its end; a blood extraction device 2 movably connected to the blood collection needle tube 1; a locking device 3 fixedly installed on the outside of the blood collection needle tube 1; and an elastic propulsion device 4 installed on the blood collection needle tube 1. The locking device 3 unlocks the elastic propulsion device 4, allowing it to elastically push the blood extraction device 2 to achieve automatic negative pressure blood extraction. The elastic propulsion device 4 provides elastic support to the insertion mechanism 23, which in turn pushes the connecting plate 22 to move the piston block 21 away from the blood collection needle tube 1. This allows the inner cavity of the blood collection needle tube 1 to be drawn into a negative pressure state, achieving automatic blood extraction without requiring both hands to operate the device simultaneously. This facilitates better blood collection from animals, unlike traditional syringes which require two-handed operation. This design greatly improves the feasibility of single-person operation. When staff are short-staffed in farms, workers can hold the animal with one hand and complete blood collection with the other, which effectively improves blood collection efficiency and avoids needle displacement caused by unstable single-handed operation, reducing stress response and vascular damage risk in animals.

[0044] The blood collection device 2 includes: a piston block 21, which is movably disposed inside the blood collection needle tube 1; a connecting plate 22, which is fixedly connected to the piston block 21 via a connecting rod; and an insertion mechanism 23, which is movably connected to the blood collection needle tube 1. Through the piston movement between the piston block 21 and the blood collection needle tube 1, the insertion mechanism 23 can push the connecting plate 22, causing the connecting rod to pull the piston block 21 away from the blood collection needle tube 1, so as to draw the inner cavity of the blood collection needle tube 1 into a negative pressure state for negative pressure blood collection from the animal. The insertion mechanism 23 includes: a support rod 231, which is movably connected to the blood collection needle tube 1, and one end of the support rod 231 is fixedly connected to the connecting plate 22; a sliding plate 232, which is fixedly connected to the other end of the support rod 231; and an insertion frame 233, which is fixedly connected to the sliding plate 232. The insertion frame 233 has a first slot, and the locking device 3 is engaged with the insertion frame 233. The sliding plate 232 is slidably inserted into the guide rod 41. Thus, when the first locking block 322 unlocks the insertion frame 233, the second spring 42 in a compressed state can provide elastic support for the sliding plate 232, so that the sliding plate 232 can push the support rod 231 towards the connecting plate 22 to push the piston block 21.

[0045] The locking device 3 includes: a fixed base 31, which is fixedly installed on the outside of the blood collection needle tube 1; and an elastic locking mechanism 32, which has a groove on the fixed base 31 and is installed inside the groove. The elastic locking mechanism 32 is used to lock the insertion frame 233. The fixed base 31 provides a gripping position for the fingers and also provides an installation position for the elastic locking mechanism 32. The elastic locking mechanism 32 includes: a rocker arm 321, on which a rotating shaft is rotatably connected, and the rotating shaft is fixedly installed inside a groove; a first locking block 322, which is movably engaged with a fixed base 31, the first locking block 322 being T-shaped and engaging with the inner cavity of a first locking groove, and a cylinder is fixedly connected to the first locking block 322; a sliding groove is provided on the rocker arm 321, and the cylinder slides into the inner cavity of the sliding groove; a first spring 323, which is installed inside the groove and provides elastic support for the first locking block 322; and a pressing plate 324, which is fixedly connected to the rocker arm 321. At one end of 1, the compression deformation of the first spring 323 facilitates the elastic support of the first locking block 322, allowing the first locking block 322 to be stably engaged in the inner cavity of the first slot, thereby locking the relative position between the insertion frame 233 and the fixed seat 31. When it is necessary to unlock the insertion mechanism 23, the pressing plate 324 is pressed, and according to the seesaw principle, the rocker arm 321 rotates around the axis of the rotating shaft, thereby pulling the cylinder up, further compressing the first spring 323, and also causing the first locking block 322 to disengage from the inner cavity of the first slot, thereby unlocking the insertion frame 233.

[0046] Specifically, the elastic propulsion device 4 includes: a guide rod 41, with a slot formed on the blood collection needle tube 1, and the guide rod 41 fixedly installed inside the slot; a second spring 42, which is movably sleeved on the outside of the guide rod 41; and an adjustable stop mechanism 43, which is adjustablely installed on the guide rod 41, and the second spring 42 is... Figure 3The shown state is the compressed state. The guide rod 41 guides the sliding of the slide plate 232, allowing the slide plate 232 to stably push the support rod 231 in a linear motion. The second spring 42 provides elastic support for the slide plate 232, providing power for its linear motion. The adjustable gear mechanism 43 includes: a gear slide 431, which slides with the guide rod 41; a pull rod 432, which moves with the gear slide 431 and is perpendicular to the guide rod 41; a second locking block 433, which is fixedly connected to one end of the pull rod 432, and the guide rod 41 has multiple second slots that mate with the second locking block 433; and a third spring 434, which is movably sleeved on the outside of the pull rod 432, providing elastic support for the second locking block 433. 3 can be stably locked in the inner cavity of the second slot to fix the relative position between the stop slide 431 and the guide rod 41, so that the stop slide 431 can stop the sliding of the slide plate 232, so that the piston block 21 moves a certain distance and then stops moving, which facilitates quantitative blood drawing. By pulling the pull rod 432, the second locking block 433 compresses and deforms the third spring 434, and at the same time, the second locking block 433 also disengages from the inner cavity of the second slot, so as to adaptively adjust the locking position between the stop slide 431 and the guide rod 41, and further facilitate the adjustment of the blood drawing volume.

[0047] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A blood collection device for animal husbandry and veterinary medicine, characterized in that, include: Blood collection needle (1), the end of which is equipped with a needle; Blood drawing device (2), wherein the blood drawing device (2) is movably connected to the blood collection needle (1); Locking device (3), which is fixedly installed on the outside of blood collection needle (1); The elastic propulsion device (4) is installed on the blood collection needle tube (1). The elastic propulsion device (4) is unlocked by the locking device (3) so that the elastic propulsion device (4) can elastically push the blood collection device (2) to achieve automatic negative pressure blood collection.

2. The blood collection device for animal husbandry and veterinary medicine according to claim 1, characterized in that, The blood-drawing device (2) includes: Piston block (21), which is movably disposed inside the blood collection needle tube (1); The connecting plate (22) is fixedly connected to the piston block (21) by a connecting rod; Insertion mechanism (23) is movably connected to blood collection needle (1).

3. A blood collection device for animal husbandry and veterinary medicine according to claim 2, characterized in that, The interpenetration mechanism (23) includes: Support rod (231), the support rod (231) is movably connected with blood collection needle (1), and one end of the support rod (231) is fixedly connected to the connecting plate (22); A sliding plate (232) is fixedly connected to the other end of a support rod (231); The insert frame (233) is fixedly connected to the slide plate (232). The insert frame (233) has a first slot, and the locking device (3) is engaged with the insert frame (233).

4. A blood collection device for animal husbandry and veterinary medicine according to claim 1, characterized in that, The locking device (3) includes: Fixing base (31), the fixing base (31) is fixedly installed on the outside of the blood collection needle tube (1); The elastic snap-fit ​​mechanism (32) is provided with a groove on the fixed base (31). The elastic snap-fit ​​mechanism (32) is installed inside the groove and is used to snap the insert frame (233).

5. A blood collection device for animal husbandry and veterinary medicine according to claim 4, characterized in that, The elastic snap-fit ​​mechanism (32) includes: A rocker arm (321) is rotatably connected to a rotating shaft, which is fixedly installed inside a groove. The first locking block (322) is movably engaged with the fixed base (31). The first locking block (322) is T-shaped and engages with the inner cavity of the first locking slot. A cylinder is fixedly connected to the first locking block (322). A sliding groove is provided on the rocker arm (321), and the cylinder engages with the inner cavity of the sliding groove. The first spring (323) is installed inside the groove and is used to provide elastic support for the first locking block (322); Press plate (324), which is fixedly connected to one end of rocker arm (321).

6. A blood collection device for animal husbandry and veterinary medicine according to claim 1, characterized in that, The elastic propulsion device (4) includes: Guide rod (41), the blood collection needle tube (1) has a slot, and the guide rod (41) is fixedly installed inside the slot; The second spring (42) is movably sleeved on the outside of the guide rod (41); An adjustable gear mechanism (43) is adjustablely mounted on a guide rod (41).

7. A blood collection device for animal husbandry and veterinary medicine according to claim 6, characterized in that, The adjustable gear mechanism (43) includes: The gear shift slide (431) is slidably engaged with the guide rod (41); A pull rod (432) is movably engaged with a stop slide (431), and the pull rod (432) and the guide rod (41) are arranged perpendicular to each other; The second locking block (433) is fixedly connected to one end of the pull rod (432), and the guide rod (41) is provided with a plurality of second locking slots that cooperate with the second locking block (433); The third spring (434) is movably sleeved on the outside of the pull rod (432).

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