Blood sampling device for animal husbandry and veterinary medicine

Abstract

The blood sampling device comprises a needle tube, a needle head is fixed to one end of the needle tube, a piston is slidably connected into the needle tube, a pull rod is fixed to the end, away from the needle head, of the piston, and an auxiliary pull mechanism is arranged at the end, away from the piston, of the pull rod. The needle tube is pinched by the thumb and the index finger, then the other three fingers are used for pushing the auxiliary drawing mechanism, the auxiliary drawing mechanism drives the drawing rod, the drawing rod drives the piston, the needle head on the needle tube begins to collect blood, and when the auxiliary drawing mechanism cannot be pushed, the position where the needle tube is pinched by the thumb and the index finger is moved backwards to be close to the other three fingers, and the needle head on the needle tube begins to collect blood. Then, the other three fingers push the auxiliary drawing mechanism, the auxiliary drawing mechanism pulls the drawing rod again, and blood sampling continues, so that when a veterinarian samples blood, one-hand operation is facilitated, and inconvenience caused by pulling the drawing rod with one hand is reduced.

Description

Technical Field

[0001] The present application relates to the field of veterinary medicine, and in particular to a blood sampling device for animal husbandry and veterinary medicine. Background Art

[0002] Animal husbandry is an industry in which people utilize the life functions of animals to obtain animal products or working animals through breeding and reproduction. Animal husbandry is divided into breeding and domestication. Breeding includes raising large livestock such as cattle, horses, mules, donkeys, camels, etc., small livestock such as pigs and sheep, and poultry such as chickens, ducks, geese, etc.

[0003] Animal husbandry veterinarians are a profession that treats large and small livestock. They have mastered the basic knowledge of animal nutrition and feed, livestock and poultry environmental hygiene, animal genetics and breeding, livestock and poultry feeding and management, and disease diagnosis and treatment. They have the ability to manage livestock and poultry feeding, select and breed, formulate daily diets, and prevent and treat major livestock and poultry diseases. When veterinarians are treating some large livestock, there may be a need for blood collection. During the blood collection process, these large livestock need to be restrained, and then the veterinarian directly uses a blood collection syringe to draw blood.

[0004] During the blood collection process, livestock may struggle due to the proximity of people or restricted movement. The veterinarian needs to support or limit the blood collection position with one hand and hold the syringe with the other hand to perform one-handed blood collection. During the pulling process, the pull rod that drives the piston to move constantly moves away from the syringe and may be out of the range of one-handed pulling, which makes it more troublesome to pull the piston in the syringe. Utility Model Content

[0005] The purpose of the present application is to solve the problem raised in the above-mentioned background technology that the veterinarian has to support or limit the blood collection position with one hand and hold the syringe with the other hand to perform the blood collection operation with one hand. During the pulling process, the pull rod that drives the piston to move keeps moving away from the syringe and may be out of the range of one-handed pulling. When pulling the piston in the syringe, it is quite troublesome. The present application provides a blood collection device for livestock and veterinary medicine.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A blood sampling device for animal husbandry and veterinary medicine comprises a needle tube, one end of which is fixed with a needle, a piston is slidably connected inside the needle tube, a pull rod is fixed to the end of the piston away from the needle, and an auxiliary pull mechanism is arranged at the end of the pull rod away from the piston.

[0008] By adopting the above technical solution, the needle tube is pinched with the thumb and index finger, and then the other three fingers are used to push the auxiliary pulling mechanism, so that the auxiliary pulling mechanism drives the pulling rod, and the pulling rod drives the piston, so that the needle on the needle tube starts to draw blood, thereby making it convenient for the veterinarian to operate with one hand when drawing blood, reducing the inconvenience of pulling the pulling rod with one hand.

[0009] Furthermore, the auxiliary pulling mechanism includes a connecting block arranged on the pulling rod, the connecting block is fixedly connected to the end of the pulling rod away from the piston, pulling plates are fixed at both ends of the connecting block, the pulling plates are in conflict with the needle tube, a supporting plate is fixed between the two pulling plates, the supporting plate is arc-shaped and corresponds to the needle tube, a limiting assembly is arranged between the supporting plate and the needle tube, and a clamping assembly is arranged between the limiting assembly and the needle tube.

[0010] By adopting the above technical solution, the thumb and index finger are used to pinch the needle tube, and then the middle finger, ring finger and little finger are used to push the support plate away from the needle. Under the restriction of the limit assembly, the support plate drives the pull-out plate, the pull-out plate drives the connecting block, the connecting block drives the pull-out rod, and the pull-out rod drives the piston to draw blood, thereby making it convenient for the veterinarian to perform blood drawing operations with one hand and reducing the possibility of limited range of moving the piston with one hand.

[0011] Furthermore, the limiting assembly includes a limiting block arranged on the support plate, the limiting block is fixedly connected to a side of the support plate close to the needle tube, a limiting groove is opened on the outer wall of the needle tube, the limiting block is located in the limiting groove and is slidably connected to the needle tube.

[0012] By adopting the above technical solution, the limit block moves in the limit groove on the needle tube, so that the support plate can only move along the direction of the limit groove, thereby reducing the possibility that the support plate drives the pull-out plate to rotate on the needle tube when the support plate is pushed.

[0013] Furthermore, the clamping assembly includes a clamping plate slidably connected to the limit block, and clamping teeth are provided on the clamping plate and in the limit groove and correspond to each other. A support spring is provided between the clamping plate and the limit block, and both ends of the support spring are fixedly connected to the clamping plate and the limit block.

[0014] By adopting the above technical solution, the inclined surfaces of the engaging teeth on the engaging plate and the engaging teeth in the limiting groove slide against each other. When the movement of the support plate stops, under the action of the supporting spring, the engaging teeth of the engaging plate and the engaging teeth in the limiting groove are clamped together, thereby reducing the possibility of pushing the support plate back when the fingers push the support plate to move.

[0015] Furthermore, a pulling rod is fixed to a side of the clamping plate away from the needle tube, the pulling rod passes through the supporting plate and is slidably connected to the supporting plate, and a latch hole is provided on the pulling rod.

[0016] By adopting the above technical solution, the pulling rod is pulled, and the pulling rod drives the clamping plate, so that the clamping teeth on the clamping plate are disengaged from the interference with the clamping teeth in the limiting groove, thereby conveniently releasing the restriction on the support plate and facilitating the piston to move back.

[0017] Furthermore, a non-slip rubber pad is provided on a side of the support plate away from the needle tube, and the non-slip rubber pad is fixedly connected to the support plate.

[0018] By adopting the above technical solution, the anti-skid rubber pad is supported by fingers and directly pushed, thereby reducing the possibility of slipping when the support plate is pushed by hand.

[0019] In summary, the present application includes at least one of the following beneficial effects:

[0020] 1. The present application supports the position where blood needs to be drawn with one hand and holds the syringe with the other hand, inserts the needle on the syringe into the position for blood drawing, and then uses the thumb and index finger of the hand holding the syringe to pinch the syringe, and then the middle finger, ring finger and little finger support the support plate, so that the thumb and index finger pinch the syringe, and then the middle finger, ring finger and little finger are used to push the support plate away from the needle. When the support plate moves, the support plate drives the pull-out plate, the pull-out plate drives the connecting block, the connecting block drives the pull-out rod, the pull-out rod drives the piston, and then blood is drawn, thereby achieving the purpose of being convenient for veterinarians to operate with one hand when drawing blood and reducing the inconvenience of pulling the pull-out rod with one hand.

[0021] 2. In the present application, when the pallet is moving, the pallet drives the limit block, the limit block drives the clamping plate, and then the clamping teeth on the clamping plate and the inclined surfaces of the clamping teeth in the limit groove slide against each other, squeezing the supporting spring at the same time, and then the clamping plate slides in the limit groove. When the pallet stops moving, under the action of the supporting spring, the clamping teeth of the clamping plate and the clamping teeth in the limit groove are clamped together, so that the clamping plate restricts the pallet, thereby achieving the purpose of reducing the possibility of pushing the pallet back when the fingers push the pallet to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a first three-dimensional structural schematic diagram of the blood sampling device in the present application;

[0023] Figure 2 is a second three-dimensional structural schematic diagram of the blood sampling device in the present application;

[0024] Figure 3 is a cross-sectional view of the blood collection device in the present application;

[0025] Figure 4 This application Figure 3 Enlarged schematic diagram at point A in the middle.

[0026] Description of reference numerals:

[0027] 1. Needle tube; 2. Needle; 3. Piston; 4. Pull-out rod; 5. Auxiliary pull-out mechanism; 51. Connecting block; 52. Pull-out plate; 53. Support plate; 54. Limiting assembly; 541. Limiting block; 542. Limiting groove; 55. Snap-on assembly; 551. Snap-on plate; 552. Support spring; 6. Pull rod; 7. Pin hole; 8. Anti-slip rubber pad. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 —4 Provide further details of this application.

[0029] The embodiment of the present application discloses a blood sampling device for animal husbandry and veterinary medicine.

[0030] Reference Figure 1 , Figure 2 and Figure 3 A blood sampling device for animal husbandry and veterinary medicine comprises a needle tube 1, a needle 2 is fixed at one end of the needle tube 1, a piston 3 is slidably connected inside the needle tube 1, a pull rod 4 is fixed at the end of the piston 3 away from the needle 2, and an auxiliary pull mechanism 5 is provided at the end of the pull rod 4 away from the piston 3. When it is necessary to use the blood collection device, first disinfect the position where blood needs to be collected, then hold the position where blood needs to be collected with one hand, hold the needle tube 1 with the other hand, insert the needle 2 on the needle tube 1 into the position where blood is collected, and then use the thumb and index finger of the hand holding the needle tube 1 to pinch the needle tube 1, and then use the other three fingers to push the auxiliary pulling mechanism 5, so that the auxiliary pulling mechanism 5 drives the pulling rod 4, and the pulling rod 4 drives the piston 3, so that the needle 2 on the needle tube 1 starts to draw blood. When the auxiliary pulling mechanism 5 cannot be pushed, move the position where the thumb and index finger pinch the needle tube 1 backward and get close to the other three fingers, and then use the other three fingers to push the auxiliary pulling mechanism 5, so that the auxiliary pulling mechanism 5 pulls the pulling rod 4 again to continue blood collection. By allowing the veterinarian to use the auxiliary pulling mechanism 5 to drive the pulling rod 4 to draw blood when holding the needle tube 1 with one hand, it is convenient for the veterinarian to operate with one hand when drawing blood, and the inconvenience of pulling the pulling rod 4 with one hand is reduced.

[0031] Reference Figure 1 , Figure 2 and Figure 3The auxiliary pulling mechanism 5 includes a connecting block 51 arranged on the pulling rod 4, the connecting block 51 is fixedly connected to the end of the pulling rod 4 away from the piston 3, pulling plates 52 are fixed at both ends of the connecting block 51, the pulling plates 52 are in conflict with the needle tube 1, and a supporting plate 53 is fixed between the two pulling plates 52. The supporting plate 53 is arc-shaped and corresponds to the needle tube 1. A limiting component 54 is arranged between the supporting plate 53 and the needle tube 1, and a clamping component 55 is arranged between the limiting component 54 and the needle tube 1. When it is necessary to pull the withdrawal rod 4, the thumb and index finger pinch the needle tube 1, and then the middle finger, ring finger and little finger hold the support plate 53, so that the thumb and index finger pinch the needle tube 1, and then use the middle finger, ring finger and little finger to push the support plate 53 away from the needle 2. Under the restriction of the limit assembly 54, the support plate 53 drives the withdrawal plate 52, the withdrawal plate 52 drives the connecting block 51, the connecting block 51 drives the withdrawal rod 4, and the withdrawal rod 4 drives the piston 3 to draw blood. When the support plate 53 is pushed to the point where the fingers are open, When the veterinarian reaches the limit, the middle finger, ring finger and little finger hold the support plate 53 and the needle tube 1, and then move the thumb and index finger backward, and then repeat the operation of pushing the support plate 53. When the veterinarian holds the needle tube 1 in one hand to draw blood, the support plate 53 is pushed by the cooperation between the fingers, so that the support plate 53 drives the pull-out plate 52, and the pull-out plate 52 drives the connecting block 51, and the connecting block 51 drives the piston 3 to draw blood, thereby facilitating the veterinarian to perform blood drawing operations with one hand and reducing the possibility of limited range of moving the piston 3 with one hand.

[0032] Reference Figure 2 , Figure 3 and Figure 4 The limiting assembly 54 includes a limiting block 541 disposed on the support plate 53. The limiting block 541 is fixedly connected to a side of the support plate 53 close to the needle tube 1. A limiting groove 542 is provided on the outer wall of the needle tube 1. The limiting block 541 is located in the limiting groove 542 and is slidably connected to the needle tube 1. When the support plate 53 is pushed, the support plate 53 drives the limiting block 541 to move. The limiting block 541 moves in the limiting groove 542 on the needle tube 1. The limiting block 541 limits the support plate 53 so that the support plate 53 can only move along the direction of the limiting groove 542. By limiting the support plate 53 by the limiting block 541, the possibility of the support plate 53 driving the pull-out plate 52 to rotate on the needle tube 1 when the support plate 53 is pushed can be reduced.

[0033] Reference Figure 3 and Figure 4The clamping assembly 55 includes a clamping plate 551 slidably connected to the limit block 541. Clamping teeth are provided on the clamping plate 551 and in the limit groove 542 and correspond to each other. A support spring 552 is provided between the clamping plate 551 and the limit block 541. Both ends of the support spring 552 are fixedly connected to the clamping plate 551 and the limit block 541. When the support plate 53 is moving, the support plate 53 drives the limit block 541, and the limit block 541 drives the clamping plate 551. Then the clamping teeth on the clamping plate 551 and the inclined surfaces of the clamping teeth in the limit groove 542 slide against each other, squeezing the supporting spring 552 at the same time, and then the clamping plate 551 slides in the limit groove 542. When the movement of the support plate 53 stops, under the action of the supporting spring 552, the clamping teeth of the clamping plate 551 and the clamping teeth in the limit groove 542 are clamped together, so that the clamping plate 551 restricts the support plate 53, so that the clamping plate 551 can only move in one direction in the limit groove 542. By utilizing the clamping plate 551 to move only in one direction in the limit groove 542, the possibility of pushing the support plate 53 back when the finger is pushed to move the support plate 53 can be reduced.

[0034] Reference Figure 3 and Figure 4 A pull rod 6 is fixed to the side of the clamping plate 551 away from the needle tube 1. The pull rod 6 penetrates the support plate 53 and is slidably connected to the support plate 53. A latch hole 7 is provided on the pull rod 6. When the blood drawn out of the needle tube 1 needs to be squeezed out, the pull rod 6 is pulled, and the pull rod 6 drives the clamping plate 551, so that the clamping teeth on the clamping plate 551 are separated from the interference with the clamping teeth in the limit groove 542, and then the latch is inserted into the latch hole 7, and then the connecting block 51 can be pushed and pulled freely. By using the pull rod 6 to restrict the clamping plate 551, the restriction on the support plate 53 can be easily released, and the piston 3 can be conveniently moved back.

[0035] Reference Figure 2 , Figure 3 and Figure 4 The side of the support plate 53 away from the needle tube 1 is provided with an anti-skid rubber pad 8, and the anti-skid rubber pad 8 is fixedly connected to the support plate 53. When the support plate 53 is supported and pushed by fingers, the fingers support the anti-skid rubber pad 8, and when the fingers push the support plate 53, the anti-skid rubber pad 8 is directly pushed. By fixing the anti-skid rubber pad 8 on the support plate 53, the possibility of slipping when the support plate 53 is pushed by hand can be reduced.

[0036] Working principle: When the blood collection device is needed, first disinfect the location where blood needs to be collected, then hold the location where blood needs to be collected with one hand, and hold the needle tube 1 with the other hand, insert the needle 2 on the needle tube 1 into the location where blood needs to be collected, and then use the thumb and index finger of the hand holding the needle tube 1 to pinch the needle tube 1, and then the middle finger, ring finger and little finger are used to support the support plate 53, let the thumb and index finger pinch the needle tube 1, and then use the middle finger, ring finger and little finger to push the support plate 53 away from the needle 2, the support plate 53 drives the limit block 541 to move, the limit block 541 moves in the limit groove 542 on the needle tube 1, and the limit block 541 is on the support plate 5 3 is restricted so that the support plate 53 can only move along the direction of the limiting groove 542, and then the engaging teeth on the engaging plate 551 and the inclined surfaces of the engaging teeth in the limiting groove 542 slide against each other, and at the same time squeeze the supporting spring 552, and then the engaging plate 551 slides in the limiting groove 542. When the support plate 53 stops moving, under the action of the supporting spring 552, the engaging teeth of the engaging plate 551 and the engaging teeth in the limiting groove 542 are clamped together. When the support plate 53 moves, the support plate 53 drives the drawing plate 52, the drawing plate 52 drives the connecting block 51, the connecting block 51 drives the drawing rod 4, the drawing rod 4 drives the piston 3, and then blood collection is performed.

Claims

1. A blood sampling device for animal husbandry and veterinary medicine, comprising a needle tube (1), characterized in that: A needle (2) is fixed to one end of the needle tube (1), a piston (3) is slidably connected inside the needle tube (1), a pull-out rod (4) is fixed to the end of the piston (3) away from the needle (2), an auxiliary pull-out mechanism (5) is provided at the end of the pull-out rod (4) away from the piston (3), the auxiliary pull-out mechanism (5) comprises a connecting block (51) provided on the pull-out rod (4), the connecting block (51) is fixedly connected to the end of the pull-out rod (4) away from the piston (3), a pull-out plate (52) is fixed to both ends of the connecting block (51), the pull-out plate (52) is in contact with the needle tube (1), a support plate (53) is fixed between the two pull-out plates (52), the support plate (53) is arc-shaped and corresponds to the needle tube (1), a limit assembly (54) is provided between the support plate (53) and the needle tube (1), the limit assembly (54) ) and the needle tube (1), the limiting assembly (54) comprises a limiting block (541) arranged on the support plate (53), the limiting block (541) is fixedly connected to a side of the support plate (53) close to the needle tube (1), a limiting groove (542) is provided on the outer wall of the needle tube (1), the limiting block (541) is located in the limiting groove (542) and is slidably connected to the needle tube (1), the clamping assembly (55) comprises a clamping plate (551) slidably connected to the limiting block (541), the clamping plate (551) and the limiting groove (542) are both provided with clamping teeth, which correspond to each other, a supporting spring (552) is provided between the clamping plate (551) and the limiting block (541), and both ends of the supporting spring (552) are fixedly connected to the clamping plate (551) and the limiting block (541).

2. The blood sampling device for animal husbandry and veterinary medicine according to claim 1, characterized in that: A pulling rod (6) is fixed to the side of the clamping plate (551) away from the needle tube (1); the pulling rod (6) passes through the supporting plate (53) and is slidably connected to the supporting plate (53); a latch hole (7) is provided on the pulling rod (6).

3. The blood sampling device for animal husbandry and veterinary medicine according to claim 1, characterized in that: A non-slip rubber pad (8) is provided on a side of the support plate (53) away from the needle tube (1), and the non-slip rubber pad (8) is fixedly connected to the support plate (53).

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