Veterinary blood collector

Abstract

The utility model provides a special blood collector for veterinary use, which comprises a needle tube, a needle head assembly fixedly arranged at one end of the needle tube and a piston assembly arranged at the other end of the needle tube, the other end of the needle tube is rotationally connected with a clamping part used for preventing the piston assembly from moving towards the needle head assembly. According to the livestock blood drawing device, the clamping part is arranged to prevent the plug rod from moving towards the direction of the needle head assembly, so that a worker does not need to continuously keep the drawing action in the livestock blood drawing process, the worker only needs to draw the plug rod to a preset position, and the clamping part helps the worker complete the blood drawing work; workers can liberate hands for other operations or for controlling livestock, so that the workers are prevented from being hurt by the livestock.

Description

Technical Field

[0001] The utility model relates to the technical field of animal husbandry blood sampling, in particular to a special blood sampling device for animals. Background Art

[0002] During livestock quarantine, blood sampling is an important method of pathogen quarantine inspection. By further clarifying the types of pathogens in the blood, effective measures can be taken in a timely manner to prevent and control animal epidemics. At the same time, emergency prevention can be carried out for non-diseased animals, thereby improving animal resistance, reducing animal morbidity, and ensuring the healthy growth and development of animals.

[0003] At present, the livestock industry usually uses syringes to draw blood. In the actual blood drawing process, the staff needs to hold the needle with one hand and continuously pull the stopper rod with the other hand to make the inside of the needle tube negative pressure state, so as to draw the blood in the vein or artery of the livestock into the inside of the needle tube. That is, during the blood drawing process, the staff needs to keep the pulling action with both hands to draw the blood out of the livestock. The blood drawing process is cumbersome, and the staff's two hands are occupied for a long time during the blood drawing process, which is inconvenient to control the livestock's activities, resulting in the risk of injury to the staff. Utility Model Content

[0004] The main purpose of the utility model is to provide a special blood sampling device for animals, so as to solve the problem in the prior art that the blood drawing process is cumbersome for the staff, both hands are occupied for a long time, it is inconvenient to control the activities of livestock, and the staff are at risk of injury.

[0005] In order to solve the above problems, the utility model adopts the following technical solution: a special blood collector for veterinary use, comprising a needle tube, a needle assembly fixed at one end of the needle tube, and a piston assembly arranged at the other end of the needle tube. One end of the piston assembly is slidably penetrated into the interior of the needle tube, and the other end of the needle tube is rotatably connected to a clamping portion for preventing the piston assembly from moving toward the needle assembly.

[0006] Furthermore, the piston assembly includes a plug rod and a plug head, the plug head is slidably arranged inside the needle tube, one end of the plug rod is fixedly connected to the plug head, and the other end of the plug rod extends to the outside of the needle tube away from the needle head assembly.

[0007] Furthermore, a fixing ring is fixedly provided at one end of the needle tube close to the piston assembly, the plug rod is slidably inserted into the fixing ring, a groove is provided on the inner wall of the fixing ring, the groove is connected to the outside world at a side away from the needle assembly, and the clamping part is rotatably connected in the groove.

[0008] Furthermore, the engaging portion includes a ball and connecting rods respectively arranged on both radial sides of the ball, the free ends of the two connecting rods are rotatably connected to the two side walls opposite to the groove, the outer surface of the ball is frictionally connected to the outer surface of the plug rod, a stop rod is fixedly provided on the side of the ball away from the needle assembly, and a plurality of annular grooves are opened on the outer side wall of the plug rod, and the plurality of annular grooves are arranged at intervals along the axial direction of the plug rod.

[0009] Furthermore, the free end of the stop rod extends obliquely toward the direction approaching the plug rod.

[0010] Furthermore, a finger pressure rod is provided on one side of the ball near the stop rod, one end of the finger pressure rod is fixedly connected to the ball, and the free end of the finger pressure rod extends obliquely in a direction away from the stop rod.

[0011] Furthermore, the outer surface of the ball is covered with a rubber layer.

[0012] Furthermore, a connection block is clamped at one end of the plug head close to the plug rod, and one end of the plug rod is threadedly connected to the connection block.

[0013] Furthermore, the needle assembly includes a fixing seat and an injection needle sleeved on an output end of the fixing seat, and the fixing seat is threadedly connected to the needle tube.

[0014] Furthermore, anti-slip grooves are provided on the outer side wall of the fixing seat.

[0015] The beneficial effects of the utility model are:

[0016] 1. The engaging part can prevent the stopper rod from moving toward the needle assembly, so that the staff does not need to keep drawing blood from livestock. They only need to draw the stopper rod to a preset position, and the engaging part can help the staff complete the blood drawing work. The staff can free one hand for other operations or to control the livestock, so as to avoid the livestock from causing harm to the staff;

[0017] 2. By setting the finger pressure rod, the plug rod can move freely along the axial direction of the needle tube according to actual needs;

[0018] 3. By setting the fixing seat to be threaded with one end of the needle tube, and coordinating the detachable connection between the stopper rod and the stopper head, the needle tube can be used as a test tube, omitting the step of discharging the blood sample in the needle tube into the test tube, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1It is a three-dimensional diagram of the veterinary blood sampling device of the utility model;

[0021] Figure 2 It is a cross-sectional view of the veterinary blood sampling device of the utility model;

[0022] Figure 3 for Figure 1 A magnified view of part A.

[0023] Description of Reference Numerals

[0024] 1. Needle tube; 11. Fixing ring; 111. Groove; 2. Needle assembly; 21. Fixing seat; 211. Anti-slip pattern; 22. Injection needle; 23. Outer sheath; 3. Piston assembly; 31. Plug rod; 311. Annular groove; 32. Plug; 33. Connecting block; 4. Engaging part; 41. Ball; 42. Connecting rod; 43. Stop rod; 44. Finger pressure rod. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0026] See also Figures 1 to 3 As shown, a special blood collector for animals includes a needle tube 1, a needle assembly 2, a piston assembly 3 and a clamping part 4. The needle tube 1 is a circular cylinder with two ends open, which is used to receive the blood of livestock. The needle assembly 2 is fixedly arranged at one end of the needle tube 1. In this embodiment, the needle assembly 2 includes a fixing seat 21, an injection needle 22 and an outer sheath 23. The fixing seat 21 is screwed on one end of the needle tube 1. The injection needle 22 is fixedly sleeved at one end of the fixing seat 21 away from the needle tube 1, and is used to pierce the body of the livestock and extract the blood of the livestock through the injection needle 22. The outer sheath 23 is sleeved on the outside of the injection needle 22, and is used to cover the outside of the injection needle 22 when the injection needle 22 is not in use, so as to prevent the injection needle 22 from stabbing the staff.

[0027] The piston assembly 3 is arranged at the other end of the needle tube 1, and one end of the piston assembly 3 is slidably arranged inside the needle tube 1, so as to generate negative pressure inside the needle tube 1, and then extract blood from the livestock through negative pressure. The piston assembly 3 includes a plug rod 31 and a plug head 32, the plug head 32 is made of rubber material, and is slidably arranged inside the needle tube 1. The plug rod 31 is cylindrical, one end of the plug rod 31 is fixedly connected to the plug head 32, and the other end of the plug rod 31 extends to the outside of the needle tube 1 in a direction away from the needle assembly 2. Preferably, a connecting block 33 is clamped at one end of the plug head 32 close to the plug rod 31, and one end of the plug rod 31 is screwed to the connecting block 33, that is, the plug rod 31 and the plug head 32 are detachably connected through the connecting block 33.

[0028] During the implementation, the staff member holds the needle tube 1, removes the outer sheath 23, and pierces the injection needle 22 into the body of the livestock. Then, the staff member holds the plug rod 31 with the other hand, and causes the plug rod 31 to drive the plug head 32 to move away from the needle assembly 2, so that negative pressure is formed inside the needle tube 1. The arterial or venous blood in the livestock flows into the needle tube 1 through the negative pressure. After the blood is drawn, the injection needle 22 is pulled out, and the outer sheath 23 is re-set on the outside of the injection needle 22 to prevent the injection needle 22 from accidentally injuring the staff member. Then, the plug rod 31 is rotated to separate the plug rod 31 from the plug head 32. At this time, the needle tube 1 can be used as a test tube. When the blood in the needle tube 1 needs to be taken out, the fixing seat 21 screwed to the needle tube 1 can be rotated to remove the fixing seat 21, and the blood in the needle tube 1 can be taken out for testing. Preferably, the outer wall of the fixing seat 21 is provided with anti-slip grooves 211 to facilitate the staff member to rotate and remove the fixing seat 21.

[0029] In this embodiment, a fixing ring 11 is fixedly provided at one end of the needle tube 1 close to the piston assembly 3, and the plug rod 31 is slidably inserted in the fixing ring 11. A groove 111 is provided on the inner side wall of the fixing ring 11. The side of the groove 111 away from the needle assembly 2 is connected to the outside, and the clamping part 4 is rotatably connected in the groove 111. The clamping part 4 is used to prevent the piston assembly 3 from moving toward the needle assembly 2, that is, when the staff pulls out the plug rod 31, the negative pressure in the needle tube 1 will drive the plug rod 31 to move toward the needle assembly 2, and the clamping part 4 can prevent the plug rod 31 from moving toward the needle assembly 2. In this way, the staff does not need to keep the pulling action during the process of drawing blood from livestock, but only needs to pull out the plug rod 31 to a preset position. The clamping part 4 helps the staff to complete the blood drawing work, and the staff can use the hand that pulls out the plug rod 31 for other operations or to control livestock, so as to avoid livestock from causing harm to the staff.

[0030] The engaging part 4 includes a ball 41, two connecting rods 42, a stop rod 43 and a finger pressure rod 44. The ball 41 is arranged inside the groove 111. The two connecting rods 42 are respectively fixedly arranged on the radial sides of the ball 41, and the free ends of the two connecting rods 42 are respectively rotatably connected to the two opposite side walls of the groove 111. The outer surface of the ball 41 is frictionally connected with the outer surface of the plug rod 31. Preferably, the outer surface of the ball 41 is coated with a rubber layer to increase the friction between the ball 41 and the plug rod 31. The stop rod 43 is fixedly arranged on the side of the ball 41 away from the needle assembly 2. A plurality of annular grooves 311 are opened on the outer side wall of the plug rod 31, and the plurality of annular grooves 311 are arranged at intervals along the axial direction of the plug rod 31.

[0031] During implementation, the staff moves the plug rod 31 away from the needle assembly 2. Since the outer wall of the plug rod 31 is frictionally connected with the ball 41, the stopper rod 43 on the ball 41 moves away from the plug rod 31. When the staff moves the plug rod 31 to the preset position, the plug rod 31 is released. At this time, the plug rod 31 moves a certain distance into the needle tube 1, and the stopper rod 43 on the ball 41 moves toward the plug rod 31 until the free end of the stopper rod 43 is engaged in one of the annular grooves 311 on the outer wall of the plug rod 31. Through the cooperation between the annular groove 311 and the stopper rod 43, the plug rod 31 will no longer move toward the needle assembly 2, thereby achieving the effect of preventing the plug rod 31 from moving toward the needle assembly 2. In this embodiment, the free end of the stopper rod 43 extends obliquely toward the plug rod 31. By tilting the stop rod 43 , the included angle between the stop rod 43 and the outer side wall of the plug rod 31 is increased, so that the stop rod 43 can be better engaged with the annular groove 311 .

[0032] It should be noted that when the staff pulls out the plug rod 31, the ball 41 frictionally connected to the plug rod 31 will rotate with the movement of the plug rod 31, and then the stop rod 43 will abut against the side wall of the groove 111 away from the plug rod 31. At this time, the ball 41 will not rotate, but will rub against the outer wall of the plug rod 31. When the plug rod 31 moves toward the direction close to the needle assembly 2, the ball 41 will rotate in the opposite direction with the movement of the plug rod 31, thereby causing the stop rod 43 to move toward the plug rod 31 to engage the plug rod 31.

[0033] Preferably, a finger pressure rod 44 is provided on one side of the ball 41 close to the stop rod 43, one end of the finger pressure rod 44 is fixedly connected to the ball 41, and the free end of the finger pressure rod 44 extends obliquely in a direction away from the stop rod 43. When the plug rod 31 needs to be moved toward the needle assembly 2, the staff can press the finger pressure rod 44 to rotate the ball 41, thereby moving the stop rod 43 away from the plug rod 31. At this time, the engaging portion 4 no longer engages the plug rod 31, so the plug rod 31 can freely move along the axial direction of the needle tube 1 according to actual needs.

[0034] During the implementation of the utility model, the staff will pierce the injection needle 22 into the body of the livestock, and then pull the plug rod 31. When the plug rod 31 is pulled out to the preset position, the plug rod 31 is released, and the engaging portion 4 can prevent the plug rod 31 from moving toward the needle assembly 2. Therefore, the staff does not need to keep pulling the plug rod 31. The staff can use the hand that pulls out the plug rod 31 for other operations or for controlling the livestock to prevent the livestock from causing harm to the staff. By setting the fixing seat 21 to be screwed to one end of the needle tube 1 and cooperating with the detachable connection of the plug rod 31 and the plug head 32, the needle tube 1 can be used as a test tube, and the step of discharging the blood sample in the needle tube 1 into the inside of the test tube is omitted, which is convenient and quick.

[0035] The above description is only a preferred embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A special blood sampling device for animals, characterized in that: The needle tube (1) comprises a needle assembly (2) fixedly mounted at one end of the needle tube (1), and a piston assembly (3) arranged at the other end of the needle tube (1); one end of the piston assembly (3) is slidably inserted into the interior of the needle tube (1), and the other end of the needle tube (1) is rotatably connected to a clamping portion (4) for preventing the piston assembly (3) from moving in the direction of the needle assembly (2).

2. The veterinary blood sampling device according to claim 1, characterized in that: The piston assembly (3) comprises a plug rod (31) and a plug head (32); the plug head (32) is slidably arranged inside the needle tube (1); one end of the plug rod (31) is fixedly connected to the plug head (32); and the other end of the plug rod (31) extends to the outside of the needle tube (1) in a direction away from the needle assembly (2).

3. The animal-use blood sampling device according to claim 2, characterized in that: A fixing ring (11) is fixedly provided at one end of the needle tube (1) close to the piston assembly (3), the plug rod (31) is slidably inserted into the fixing ring (11), a groove (111) is provided on the inner side wall of the fixing ring (11), the side of the groove (111) away from the needle assembly (2) is connected to the outside, and the clamping portion (4) is rotatably connected in the groove (111).

4. The animal-use blood sampling device according to claim 3, characterized in that: The engaging portion (4) comprises a ball (41) and connecting rods (42) respectively arranged on two radial sides of the ball (41); the free ends of the two connecting rods (42) are rotatably connected to two opposite side walls of the groove (111); the outer surface of the ball (41) is frictionally connected to the outer surface of the plug rod (31); a stop rod (43) is fixedly provided on the side of the ball (41) away from the needle assembly (2); a plurality of annular grooves (311) are formed on the outer side wall of the plug rod (31); and the plurality of annular grooves (311) are arranged at intervals along the axial direction of the plug rod (31).

5. The animal-use blood sampling device according to claim 4, characterized in that: The free end of the stop rod (43) extends obliquely in a direction approaching the plug rod (31).

6. The animal-use blood sampling device according to claim 4, characterized in that: A finger pressure rod (44) is provided on one side of the ball (41) close to the stop rod (43); one end of the finger pressure rod (44) is fixedly connected to the ball (41); and a free end of the finger pressure rod (44) extends obliquely in a direction away from the stop rod (43).

7. The animal-use blood sampling device according to claim 4, characterized in that: The outer surface of the ball (41) is covered with a rubber layer.

8. The animal-use blood sampling device according to claim 2, characterized in that: One end of the plug head (32) close to the plug rod (31) is clamped with a connection block (33), and one end of the plug rod (31) is threadedly connected to the connection block (33).

9. The animal-use blood sampling device according to claim 1, characterized in that: The needle assembly (2) comprises a fixing seat (21) and an injection needle (22) sleeved on an output end of the fixing seat (21); the fixing seat (21) is threadedly connected to the needle tube (1).

10. The animal-use blood sampling device according to claim 9, characterized in that: An anti-slip pattern (211) is provided on the outer side wall of the fixing seat (21).

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