An animal ear vein blood collection device

Abstract

This utility model relates to the field of blood collection devices, and discloses an animal ear vein blood collection device, including a blood collection device and a fixing device. The fixing device is used to fix the blood collection device to the animal's ear. The blood collection device includes a syringe, a tubing, a needle tube, and a needle connected in sequence. The fixing device includes a clamping arm and a latching arm. One end of the clamping arm is fixedly connected to the needle tube, and a magnetic clamping arm sticker is fixedly provided on the bottom surface of the clamping arm. One end of the latching arm is hinged to the needle tube through a connector. The latching arm includes a clearance section and a magnetic attraction section. The clearance section is an upwardly convex arc-shaped structure, and a magnetic latching arm sticker is fixedly provided on the bottom surface of the magnetic attraction section. This utility model can quickly fix the needle to the animal's ear and prevent the needle from falling off.

Description

Technical Field

[0001] This utility model relates to the field of blood collection device technology, specifically to an animal ear vein blood collection device. Background Technology

[0002] In livestock farming, veterinary diagnosis and treatment, and biomedical research, ear vein blood collection is a routine procedure for medium to large animals such as pigs, cattle, and rabbits. Compared to jugular or tail vein puncture, ear veins have advantages such as being superficial, having large and straight vessels, and being far from vital organs, making blood collection easier for operators and significantly reducing the risks involved. Collecting blood samples from animals allows for the testing of various parameters, including complete blood count, biochemical indicators, and immune indicators, providing crucial information for early diagnosis of animal diseases, disease monitoring, and evaluation of drug efficacy.

[0003] Currently, the mainstream ear vein blood collection devices are divided into two categories. One type uses a direct-connect syringe, where the operator holds the needle and inserts it into the vein, then manually fixes the syringe to complete the blood collection. This type of device relies heavily on the operator's experience, and the needle is very likely to shift or come out when the animal struggles, resulting in blood collection failure or hematoma. This method usually requires restraining the animal before injection. Existing restraint methods generally involve securing the animal by looping a restraint rope around its abdomen and lifting it upwards. However, this restraint method is extremely unfriendly to pregnant animals and can easily cause maternal discomfort and miscarriage. The second method uses mechanical clamps to fix the needle to the animal's ear to prevent it from falling off. For example, a pig ear vein blood collection device with publication number CN222466905U discloses the use of a pig ear fixing component to fix the pig ear. The blood collection device is fixed to the pig ear fixing device for blood collection. By turning the knob to adjust the adjusting bolt, the distance between the two connecting rods can be adjusted to accommodate pig ears of different sizes. The outside of the pig ear is placed in the opening groove at one end of the connecting rod. By turning the knob to tighten the bolt, one side of the connecting rod deforms, shortening the distance between the upper and lower ends, thereby completing the clamping and fixing of the pig ear.

[0004] The above-mentioned devices have significant shortcomings in use. The direct-connect syringe requires the animal to be restrained in advance, and the syringe and needle are rigidly connected. If the animal struggles or the operator shakes the hand, the needle may easily deviate and damage the ear vein. The fixation device is complicated to operate, requiring the rotation of multiple bolts to achieve fixation, which is time-consuming and inefficient. Utility Model Content

[0005] The present invention aims to provide an animal ear vein blood collection device that can quickly fix the needle to the animal's ear and prevent the needle from falling out.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An animal ear vein blood collection device includes a blood collection device and a fixing device. The fixing device is used to fix the blood collection device to the animal's ear. The blood collection device includes a syringe, a tubing, a needle tube, and a needle connected in sequence. The fixing device includes a clamping arm and a buckling arm. One end of the clamping arm is fixedly connected to the needle tube, and a magnetic clamping arm sticker is fixedly provided on the bottom surface of the clamping arm. One end of the buckling arm is hinged to the needle tube through a connector. The buckling arm includes a clearance section and a magnetic attraction section. The clearance section is an upwardly convex arc-shaped structure, and a magnetic buckling arm sticker is fixedly provided on the bottom surface of the magnetic attraction section.

[0008] The principles and advantages of this scheme are:

[0009] 1. Since blood collection is performed when the animal is resting or relatively static, and the ear vein near the auricle is selected for blood collection because there are fewer nerves in the area near the auricle, the animal is less likely to feel pain. However, the animal may still shake its head during the blood collection process. By using the magnetic connection between the magnetic clip arm and the magnetic buckle arm, after the needle is inserted into the ear vein, simply flipping the buckle arm will achieve a magnetic connection, which allows the needle to be quickly fixed to the animal's ear. The syringe and needle are connected by a soft tube, which has reserved space for movement and can absorb some pulling force, thus preventing the needle from falling off due to slight shaking or walking of the animal.

[0010] 2. Magnetic connection is achieved by using magnetic clips and magnetic buckles. Compared with traditional methods of fixing with straps, tape, or bolts, this solution is simple and quick to operate. The connection can be achieved simply by flipping the buckle. This allows for blood collection by a single person, significantly shortens blood collection time, and reduces animal stress.

[0011] 3. The buckle arm includes an arc-shaped avoidance section and a magnetic attraction section. The arc-shaped structure of the avoidance section can avoid or accommodate the auricle, ensuring that the magnetic clip arm and the magnetic buckle arm can make smooth contact and attract each other, thus improving the accuracy and stability of the magnetic attraction.

[0012] 4. A flexible tube is used to connect the needle and syringe, forming a flexible transition and avoiding a rigid connection between the syringe and needle. When the operator pushes or pulls the syringe plunger, the resulting mechanical vibration or shaking will not be directly transmitted to the needle, preventing the needle from shifting in the blood vessel or scratching the blood vessel wall. If the animal suddenly moves or shakes its head during the blood collection process, the elasticity of the tube can absorb some of the pulling force, reducing the risk of the needle falling off, and making it convenient for the blood collection personnel to move with the animal while performing the blood collection operation.

[0013] Preferably, as an improvement, the length of the magnetic clip arm patch is less than the length of the clip arm, and the magnetic clip arm patch is disposed at the end of the clip arm away from the needle tube.

[0014] Technical benefits: This solution adopts the above configuration. Since the magnetic clip arm is magnetically connected to the magnetic buckle arm, and the magnetic buckle arm is located in the magnetic attraction section of the buckle arm, the clearance section does not have a magnetic buckle arm. Therefore, shortening the length of the magnetic clip arm will not affect the magnetic connection between the magnetic clip arm and the magnetic buckle arm, and will also reduce the use of materials and lower costs.

[0015] Preferably, as an improvement, the fixing device further includes a magnetic block.

[0016] Technical effect: The above settings can improve the versatility of this solution. When the ear vein is located at the edge of the animal's ear and far from the auricle, the buckle arm cannot be flipped to the back of the animal's ear and cannot be fixed. Therefore, a magnetic block can be used to replace the magnetic buckle arm sticker and the magnetic clip arm sticker for magnetic connection.

[0017] Preferably, as an improvement, a fixing ring is fixedly provided at one end of the clamping arm, and rotating rings are provided on both sides of the fixing ring. The rotating rings are fixedly connected to the buckle arm. The needle tube passes through the rotating ring on the front side of the buckle arm, the fixing ring on the clamping arm, and the rotating ring on the rear side of the buckle arm in sequence to realize the hinge between the clamping arm and the buckle arm. The needle tube is fixedly connected to the inner wall of the fixing ring, and the needle tube is rotatably connected to the inner wall of the rotating ring.

[0018] Technical benefits: This solution uses the above-mentioned setup, with the needle acting as the pivot of the hinged joint, reducing additional parts and making the overall structure more compact.

[0019] Preferably, as an improvement, the clamping arm is hinged to the buckle arm, the needle tube is fixedly disposed on the top surface of the clamping arm, and the needle tube is disposed near the hinge.

[0020] Technical effect: This solution adopts the above setting, which separates the needle tube from the hinge structure, and can directly fix the needle tube of the existing blood collection device to the clamp arm, thus modifying the existing blood collection device.

[0021] Preferably, as an improvement, the clamping arm is hinged to the buckle arm, and the top surface of the clamping arm is provided with a plurality of fixing members, which are arranged at intervals along the length direction of the clamping arm. The needle tube is detachably mounted on the top surface of the clamping arm through the fixing members.

[0022] Technical benefits: The above-mentioned setup provides multiple mounting points for the needle with multiple fixing parts in different positions. The needle position can be adjusted according to the ear thickness or the position of the ear vein of different animals, so that the buckle arm can be flipped to achieve magnetic connection, which improves the versatility of the device. In addition, the detachable connection between the needle and the buckle makes it easy to replace the blood collection device without having to replace the entire blood collection device.

[0023] Preferably, as an improvement, the fastener includes a first fixing buckle and a second fixing buckle, the first fixing buckle and the second fixing buckle are arranged along the width direction of the clamping arm, and a gap is provided between the first fixing buckle and the second fixing buckle.

[0024] Technical effect: The above-mentioned configuration provides operating space for the fingers, making it easy to grasp the needle tube for disassembly by applying force between the first and second fixing clips. The first and second fixing clips apply pressure on both sides of the needle tube, and the two parallel clips form two clamping points on the needle tube, which can prevent the needle tube from wobbling or sliding. Moreover, the snap-fit ​​method can achieve the effect of quick installation and disassembly of the needle tube.

[0025] Preferably, as an improvement, the blood collection device further includes a handle, which is fixedly disposed at the end of the needle tube near the syringe.

[0026] Technical effect: The above-mentioned setup provides a stable point of leverage for blood collection personnel, which can improve the success rate of puncture. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0028] Figure 2 This is a schematic diagram of the fixing device from another perspective in an embodiment of this utility model.

[0029] Figure 3 This is a schematic diagram illustrating the use of an embodiment of the present utility model.

[0030] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0031] Figure 5 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0032] Figure 6 This is a structural schematic diagram of Embodiment 4 of the present invention.

[0033] The reference numerals in the accompanying drawings include: syringe 1, tubing 2, needle tube 3, handle 4, needle tip 5, clamp arm 6, magnetic clamp arm sticker 7, connector 8, buckle arm 9, clearance section 91, magnetic suction section 92, magnetic buckle arm sticker 10, magnetic suction block 11, animal ear 12, ear vein 13, fixing ring 14, rotating ring 15, fixing member 16, first fixing buckle 161, and second fixing buckle 162. Detailed Implementation

[0034] The following detailed description illustrates the specific implementation method:

[0035] Example 1

[0036] The basics are as follows: Figure 1-3 As shown:

[0037] An animal ear vein blood collection device includes a blood collection device and a fixing device. The fixing device is used to quickly fix the blood collection device to the animal ear 12. The blood collection device includes a syringe 1, a flexible tube 2, a needle tube 3, and a needle 5. Figure 1 As shown, syringe 1, tubing 2, needle tube 3 and needle 5 are connected in sequence to form a liquid flow channel that enters from needle 5, passes through needle tube 3 and tubing 2 in sequence, and finally enters syringe 1. Needle tube 3 is also equipped with a handle 4, which is fixedly set at the end of needle tube 3 near syringe 1, providing a stable point of force for blood collection personnel to perform needle insertion.

[0038] The fixing device includes a clamping arm 6 and a latching arm 9. One end of the clamping arm 6 is fixedly connected to the needle tube 3, and one end of the latching arm 9 is hinged to the needle tube 3 via a connector 8. The structure of the connector 8 is not fixed; in this embodiment, the connector 8 is a hinge, meaning that the clamping arm 6 and the latching arm 9 are connected via the needle tube 3. Figure 1 As shown, the hinge has two fixed pages, which are movably connected by a central rotating shaft. Both fixed pages are arc-shaped. The shorter fixed page is attached to the outer surface of the needle tube 3 and connected with adhesive, while the longer fixed page is attached to the outer surface of the buckle arm 9 and connected with adhesive.

[0039] like Figure 2 As shown, a magnetic clip arm sticker 7 is fixedly provided on the bottom surface of the clamp arm 6. The magnetic clip arm sticker 7 is a magnetic sheet with adhesive on the back. The magnetic clip arm sticker 7 does not completely cover the bottom surface of the clamp arm 6. The length of the magnetic clip arm sticker 7 is less than the length of the clamp arm 6. The magnetic clip arm sticker 7 is located at the end of the clamp arm 6 away from the needle tube 3. The buckle arm 9 includes a clearance section 91 and a magnetic attraction section 92. The clearance section 91 is an upwardly protruding arc structure. A magnetic buckle arm sticker 10 is fixedly provided on the bottom surface of the magnetic attraction section 92. The magnetic buckle arm sticker 10 is also a magnetic sheet with adhesive on the back. The magnetic buckle arm sticker 10 completely covers the bottom surface of the magnetic attraction section 92.

[0040] like Figure 1 As shown, in this embodiment, the fixing device further includes a magnetic block 11, which is independently disposed and has no connection with the fixing device. In other embodiments besides this one, the magnetic block 11 can be magnetically fixed to... Figure 1 The top surface of the middle clamping arm 6 is magnetically attached to the magnetic clamping arm 7, and can be removed when in use; this method can prevent the magnetic block 11 from being lost.

[0041] This embodiment has the following two usage methods in actual use:

[0042] Method 1: For example Figure 3As shown in the illustration, this embodiment uses a pig's ear. When the pig is resting, the blood collection personnel slowly approach the animal to be blooded. Since the ear vein 13 is located on the edge of the animal's ear 12 near the auricle, the pain is minimal, so this is the location for blood collection. The needle 5 is inserted into the ear vein 13 by pinching the handle 4. It is worth noting that the clamp arm 6 and buckle arm 9 in this technology can also serve as a hand handle for easier needle insertion, especially for animals with thick skin; the user can choose according to their needs. Since the ear vein 13 is located on one side of the pig's ear outline, and the pig's ears are usually drooping downwards when resting, the blood collection personnel need to gently lift the pig's ear upwards to expose the ear vein 13, and place the pig's ear on the palm of the left hand, so that the back of the ear is in contact with the palm. At this time, one side of the pig's ear outline is fully exposed. The blood collection personnel then insert the needle into the ear vein 13 with their right hand. After the needle insertion is completed, as shown... Figure 3 As shown, the clamp arm 6 rests naturally above the animal ear 12, specifically on the side with the outline of the pig's ear. At this time, the right hand quickly flips the buckle arm 9, causing it to rotate relative to the needle tube 3. This allows the magnetic buckle arm sticker 10 to magnetically connect with the magnetic clamp arm sticker 7 below the animal ear 12, thus fixing the needle 5 to the animal ear 12 and preventing it from falling off. The arc-shaped structure of the clearance section 91 of the buckle arm 9 can avoid obstructing the auricle of the animal ear 12, or allow the auricle of the animal ear 12 to bend and accommodate within the arc-shaped structure of the clearance section 91, without affecting the magnetic connection between the magnetic clamp arm sticker 7 and the magnetic buckle arm sticker 10. After fixation, the syringe 1 can be used for blood drawing.

[0043] Method 2: When the ear vein 13 is located at the edge of the animal ear 12, far from the auricle, the buckle arm 9 rotates relative to the needle tube 3. Since the needle tube 3 is far from the edge of the ear after inserting into the ear vein 13, the buckle arm 9 cannot be flipped to the back of the animal ear 12, thus failing to achieve fixation. Therefore, a magnetic clip arm 7 is used to magnetically connect with the magnetic block 11 to achieve fixation.

[0044] The specific operating procedure is as follows: The blood collection personnel place the magnetic block 11 on their left palm beforehand, slowly approach the animal to be blooded, pinch the animal's ear 12 with their left hand, and pinch the handle 4 with their right hand to insert the needle 5 into the ear vein 13. After the needle insertion is completed, the clamp arm 6 is naturally placed above the animal's ear 12. At this time, the magnetic block 11 in the left palm is lifted upwards, so that the magnetic block 11 and the magnetic clamp arm 7 above the animal's ear 12 are magnetically connected, fixing the needle 5 to the animal's ear 12. Then, the syringe 1 is used to perform the blood drawing operation.

[0045] It should be noted that when collecting blood from the ear vein 13 of an animal, this method prioritizes the ear vein 13 that is close to the auricle of the animal's ear 12, because there are fewer peripheral nerves in the animal's ear 12, which will reduce the animal's pain and facilitate the blood collection operation, as well as reduce the animal's suffering.

[0046] Example 2

[0047] The basics are as follows: Figure 4 As shown: The difference between this embodiment and embodiment 1 is the connection method between the clamping arm 6 and the buckle arm 9. In this embodiment, the clamping arm 6 and the buckle arm 9 are hinged, and the needle tube 3 acts as a rotating shaft.

[0048] A fixing ring 14 is fixedly provided at one end of the clamping arm 6. Rotating rings 15 are provided on both sides of the fixing ring 14. The rotating rings 15 are fixedly connected to the buckle arm 9. The needle tube 3 passes through the rotating ring 15 on the front side of the buckle arm 9, the fixing ring 14 on the clamping arm 6, and the rotating ring 15 on the rear side of the buckle arm 9 in sequence to achieve the hinge connection between the clamping arm 6 and the buckle arm 9. The needle tube 3 is fixedly connected to the inner wall of the fixing ring 14 and rotatably connected to the inner wall of the rotating ring 15. When the buckle arm 9 is flipped, the buckle arm 9 drives the two rotating rings 15 to rotate around the needle tube 3, so that the magnetic clamping arm sticker 7 and the magnetic buckle arm sticker 10 are magnetically connected, fixing the needle 5 to the animal ear 12.

[0049] Example 3

[0050] The basics are as follows: Figure 5 As shown: The difference between this embodiment and embodiment 1 is the connection method between the clamping arm 6 and the buckle arm 9.

[0051] The clamping arm 6 and the buckle arm 9 are directly hinged by a rotating shaft. The needle tube 3 is fixedly installed on the top surface of the clamping arm 6 and is located near the hinge.

[0052] Example 4

[0053] The basics are as follows: Figure 6 As shown: The difference between this embodiment and embodiment 3 is that in this embodiment, the needle tube 3 and the clamping arm 6 are detachably connected.

[0054] The clamp arm 6 and the buckle arm 9 are hinged by a pivot pin. The needle tube 3 is detachably mounted on the top surface of the clamp arm 6 through the fixing member 16. The top surface of the clamp arm 6 is provided with multiple fixing members 16, which are arranged at intervals along the length of the clamp arm 6, providing multiple installation positions for the needle tube 3. This can adapt to the position of the ear vein 13 of different animal ears 12, allowing the buckle arm 9 to be flipped smoothly and magnetically connected to the clamp arm 6.

[0055] Furthermore, the fixing member 16 includes a first fixing buckle 161 and a second fixing buckle 162, which are arranged along the width direction of the clamping arm 6. A gap is provided between the first fixing buckle 161 and the second fixing buckle 162, providing a point of leverage and space for disassembling the needle tube 3. When the needle tube 3 is inserted into the first fixing buckle 161 and the second fixing buckle 162, it is clamped from both sides by the first fixing buckle 161 and the second fixing buckle 162, which can effectively prevent the needle tube 3 from shaking and ensure that the outer diameter of the needle tube 3 matches the inner diameter of the first fixing buckle 161 and the second fixing buckle 162. The engagement between the needle tube 3 and the first fixing buckle 161 and the second fixing buckle 162 is relatively tight, and it is difficult for relative sliding or shaking to occur. Furthermore, the snap-fit ​​design allows for quick installation and disassembly. This means that if a discrepancy is found between the needle 5 and the animal's ear vein 13 during actual blood collection, the needle 3 can be quickly adjusted and replaced to continue the blood collection process.

[0056] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An animal ear vein blood collection device, comprising a blood collection device and a fixing device, wherein the fixing device is used to fix the blood collection device to the animal ear, and the blood collection device comprises a syringe, a tubing, a needle tube, and a needle connected in sequence, characterized in that: The fixing device includes a clamping arm and a buckling arm. One end of the clamping arm is connected to the needle tube, and a magnetic clamping arm sticker is fixedly provided on the bottom surface of the clamping arm. One end of the buckling arm is hinged to the needle tube through a connector. The buckling arm includes a clearance section and a magnetic attraction section. The clearance section is an upwardly protruding arc-shaped structure, and a magnetic buckling arm sticker is fixedly provided on the bottom surface of the magnetic attraction section.

2. The animal ear vein blood sampling device according to claim 1, wherein: The length of the magnetic clip arm patch is less than the length of the clip arm, and the magnetic clip arm patch is located at the end of the clip arm away from the needle tube.

3. The animal ear vein blood collection device according to claim 1, characterized in that: The fixing device also includes a magnetic block.

4. The animal ear vein blood sampling device according to claim 1, wherein: One end of the clamping arm is fixedly provided with a fixing ring, and the two sides of the fixing ring are provided with rotating rings. The rotating rings are fixedly connected to the buckle arm. The needle tube passes through the rotating ring on the front side of the buckle arm, the fixing ring on the clamping arm and the rotating ring on the rear side of the buckle arm in sequence to realize the hinge between the clamping arm and the buckle arm. The needle tube is fixedly connected to the inner wall of the fixing ring and rotatably connected to the inner wall of the rotating ring.

5. The animal ear vein blood sampling device according to claim 1, wherein: The clamping arm is hinged to the buckle arm, and the needle tube is fixedly installed on the top surface of the clamping arm, with the needle tube positioned near the hinge.

6. The animal ear vein blood sampling device according to claim 1, wherein: The clamping arm is hinged to the buckle arm, and the top surface of the clamping arm is provided with multiple fixing members. The multiple fixing members are arranged at intervals along the length direction of the clamping arm, and the needle tube is detachably mounted on the top surface of the clamping arm through the fixing members.

7. The animal ear vein blood sampling device according to claim 6, wherein: The fastener includes a first fastener and a second fastener, which are arranged along the width of the clamping arm, and a gap is provided between the first fastener and the second fastener.

8. The animal ear vein blood sampling device according to claim 1, wherein: The blood collection device also includes a handle, which is fixedly disposed at the end of the needle tube near the syringe.

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