Veterinary syringe with continuously replaceable needle and usage method

Abstract

A veterinary syringe with continuously replaceable needles and a method of use thereof include a sleeve, a needle supply box, and a syringe jacket that can slide along the sleeve, wherein the syringe is disposed within the syringe jacket; a needle outlet is provided on the surface of the sleeve, a needle pusher is provided between the needle outlet and the syringe jacket, and a fixed needle hole is provided on the needle pusher; the needle supply box is connected to the sleeve, and a needle outlet is provided at the upper end of the needle supply box, which penetrates into the sleeve through the sleeve wall between the needle pusher and the syringe jacket. This device can effectively address the drawback of administering a single injection to all livestock during veterinary clinical vaccinations, prevent cross-infection, prevent the spread of disease, effectively control the depth of needle insertion to reduce stress, and reduce needle damage to livestock and poultry. It can also enable centralized recycling and processing of discarded needles, reduce environmental pollution, and prevent discarded needles from harming humans and livestock and poultry, effectively improving vaccine utilization.

Description

Technical Field

[0001] The present invention relates to the field of veterinary clinical vaccine injection, and in particular to a device capable of continuously replacing syringe needles and a method for using the device. Technical Background

[0002] Vaccination plays a crucial role in disease prevention and control. According to disease prevention and control laws and regulations, vaccines must be administered one shot per animal to achieve effective immunity. However, due to various constraints, such as production efficiency, production costs, and the level of veterinary expertise, the practice of changing the needle between injections is extremely difficult to implement in veterinary clinical practice. This practice often involves administering one shot per animal, or even one shot per group or region. This practice not only fails to prevent disease but also increases the chances of disease transmission, creating hidden dangers for disease prevention and control.

[0003] Based on this, a veterinary syringe with continuously replaceable needles and a method of use were invented for continuously replacing needles during veterinary clinical vaccine injections, which greatly improved the efficiency of this work, achieved one injection per animal, avoided cross-infection, and truly achieved the purpose of vaccination to prevent disease. Summary of the Invention

[0004] The present invention provides a veterinary syringe with a continuously replaceable needle and a method for using the syringe, which not only improves work efficiency but also forces operators to use one needle for one animal, thereby avoiding cross infection.

[0005] The technical solution for realizing the present invention is that a veterinary syringe with continuously replaceable needles comprises a sleeve, a needle supply box and a syringe jacket that can slide along the sleeve, wherein the syringe is arranged in the syringe jacket;

[0006] A needle outlet is provided on the surface of the sleeve, a needle pusher is provided between the needle outlet and the syringe jacket, and a fixed needle hole is provided on the needle pusher;

[0007] The center line of the needle outlet, the center line of the fixed needle hole of the push needle card and the center line of the syringe arranged in the syringe jacket are on the same straight line;

[0008] The needle supply box is connected to the sleeve. A needle supply port is provided on the upper end of the needle supply box. The needle supply port penetrates into the sleeve from the sleeve wall between the needle push card and the syringe jacket.

[0009] Furthermore, the needle supply box includes a box body, a pad is provided at the bottom of the box body, and a first space is provided between one end of the pad and the inner wall of the box body;

[0010] A spring is arranged in the first interval and an ejector slider is arranged on the spring.

[0011] Furthermore, a slideway is provided in the box along the trajectory of movement of the ejector slider;

[0012] The ejector slider can slide along the slideway.

[0013] Furthermore, a plurality of guide grooves are provided on the inner wall of the sleeve, and a guide column is provided on the outer wall of the syringe jacket;

[0014] The guide column can slide along the guide slot.

[0015] Furthermore, the veterinary syringe also includes a discarded needle collection tube, the upper end of which is provided with a collection port, and the collection port is connected between the needle pusher card and the needle outlet of the sleeve.

[0016] Furthermore, the push pin card includes a vertical plate provided with a fixed pin hole and an oblique plate connected to the lower end of the vertical plate;

[0017] The width of the second interval between the vertical plate and the needle outlet is smaller than the length of the needle.

[0018] Furthermore, the syringe jacket can contact the vertical plate when sliding along the sleeve.

[0019] Furthermore, the upper end of the fixed pinhole is open.

[0020] Furthermore, a spring block is provided at the bottom end of the inner wall of the fixed needle hole, and an elastic fixing ring is provided at the edge of the fixed needle hole opposite to the syringe jacket.

[0021] Furthermore, the syringe jacket includes an open sleeve for placing the syringe, a guide column is provided on the surface of the open sleeve, a push rod is provided at one end of the open sleeve, and a needle connector is provided at the other end.

[0022] Furthermore, a method for using a veterinary syringe with a continuously replaceable needle includes syringe filling, injection, and needle replacement;

[0023] The syringe is filled by injecting liquid medicine into the syringe, and then the syringe is placed in the syringe jacket through the opening on the open sleeve of the syringe jacket, with the rear end of the syringe in contact with the push rod and the front end of the syringe in contact with the needle head;

[0024] For injection, the push rod of the syringe jacket is pushed, and the syringe jacket slides along the guide slot. After the needle is pushed out from the upper opening of the needle supply box, it is connected with the needle receiving head at the front end of the syringe jacket. At the same time, the front end of the needle is pushed into the fixed needle hole of the needle push card under the sliding of the syringe jacket, and then passes through the sleeve from the needle outlet. When the syringe jacket cannot slide, the push rod pushes the rear end of the syringe to start injection;

[0025] After the needle is replaced and the injection step is completed, the syringe jacket is pulled back by the push rod, and the injected needle is separated from the needle receiving head at the front end of the syringe jacket, and falls into the discarded needle collection tube along the collection port under the action of gravity. When the syringe jacket leaves the upper opening of the needle supply box, the needle supply box pushes the needle out.

[0026] The advantages of the present invention are that it can effectively solve the drawback of vaccinating all livestock with one shot during veterinary clinical vaccination, prevent cross infection, prevent the spread of epidemic diseases, effectively control the depth of needle insertion to reduce stress, reduce needle loss, and achieve centralized recycling of discarded needles, reducing pollution to the environment and preventing harm to humans and livestock caused by discarded needles. It can effectively improve the utilization rate of vaccines, effectively prevent and control diseases, and greatly improve animal welfare. This patented device has the advantages of simple structure, easy operation, low production cost, high safety, avoidance of cross infection, strong practicality, etc., and has good application and promotion prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 for Figure 1 Schematic cross-section of .

[0028] Figure 2 This is a schematic diagram of the combination of a sleeve, a needle supply box, and a discarded needle collection tube.

[0029] Figure 3 This is a schematic diagram of the needle supply box structure.

[0030] Figure 4 Schematic diagram of the syringe jacket structure.

[0031] As shown in the figure, sleeve 1, needle supply box 2, syringe jacket 3, open sleeve 31, push rod 32, needle receiving head 33, syringe 4, needle outlet 5, needle push card 6, elastic fixing ring 7, needle 8, guide slide 9, guide column 10, discarded needle collection tube 11, collection port 12, box body 21, pad 22, spring 23, ejector slider 24, slideway 25, vertical plate 61, and oblique plate 62. DETAILED DESCRIPTION

[0032] like Figure 1 、 2 3, a veterinary syringe with a continuously replaceable needle comprises a sleeve 1, a needle supply box 2 and a syringe jacket 3 that can slide along the sleeve 1, and a syringe 4 is arranged in the syringe jacket 3;

[0033] A needle outlet 5 is provided on the surface of the sleeve 1, and a needle pusher 6 is provided between the needle outlet 5 and the syringe jacket 3. The needle pusher 6 is provided with a fixed needle hole. Preferably, the needle pusher 6 includes a vertical plate 61 provided with a fixed needle hole 7 and an oblique plate 62 connected to the lower end of the vertical plate 61;

[0034] The second interval between the vertical plate 61 and the needle outlet 5 is smaller than the length of the needle 8. The length of the needle 8 is two-thirds of the length of the second interval. The diameter of the needle outlet 5 is smaller than the diameter of the tail of the needle 8, that is, the tail of the needle 8 cannot be removed.

[0035] The center line of the needle outlet 5, the center line of the fixed needle hole of the push needle card 6 and the center line of the syringe 4 arranged in the syringe jacket 3 are on the same straight line. When in use, the needle 8 placed at the front end of the syringe jacket 3 can pass through the fixed needle hole of the push needle card 6 and pass through the needle outlet 5, so that the front end of the needle 8 passes through the sleeve 1 from the needle outlet 5;

[0036] The needle supply box 2 is connected to the lower end of the sleeve 1. The upper end of the needle supply box 2 is provided with a needle supply port, which penetrates into the sleeve 1 from the wall of the sleeve 1 between the needle push card 6 and the syringe jacket 3.

[0037] Preferably, a plurality of guide grooves 9 are provided on the inner wall of the sleeve 1, such as Figure 4 In the embodiment, a guide column 10 is provided on the outer wall of the syringe jacket 3. Preferably, the syringe jacket 3 includes an open sleeve 31 for placing the syringe, and a guide column 10 is provided on the surface of the open sleeve 31. A push rod 32 is provided at one end of the open sleeve 31 and a needle connector 33 is provided at the other end. When a syringe containing a drug is placed in the open sleeve 31, the syringe push head contacts the push rod 32, and the liquid outlet of the syringe is connected to the needle connector 33. When the syringe jacket 3 slides in the sleeve 1, the needle connector 33 is placed on the push needle card 6;

[0038] The guide column 10 can slide along the guide groove 9. When in use, it is arranged on the guide groove 9 of the syringe jacket 3, with two groups on each corresponding side. Two groups of guide columns 10 are respectively arranged on the outer wall of the syringe jacket 3 on each corresponding side. Each group of guide columns 10 corresponds to one group of guide grooves 9, so that the syringe jacket 3 can slide more stably in the sleeve 1.

[0039] The needle supply box 2 includes a box body 21, a cushion block 22 is provided at the bottom of the box body 21, and a first spacer is provided between one end of the cushion block 22 and the inner wall of the box body 21;

[0040] A spring 23 is provided in the first space and an ejector slider 24 is provided on the spring 23 .

[0041] Preferably, a slideway 25 is provided in the box body 21 along the trajectory of movement of the ejector slider 24;

[0042] The ejector slider 24 can slide along the slideway 25 .

[0043] Preferably, a veterinary syringe with continuously replaceable needles further comprises a discarded needle collection barrel 11 , the upper end of which is provided with a collection port 12 , which is connected between the needle pusher 6 and the needle outlet 5 of the sleeve 1 .

[0044] The upper end of the needle supply box 2 is open.

[0045] An elastic fixing ring 7 is provided on the side edge opposite to the fixed needle hole and the syringe jacket 3. When the head of the needle 8 passes through the fixed needle hole and the needle outlet 5 under the push of the syringe jacket 3, the tail of the needle 8 is squeezed by the elastic fixing ring 7 in the moving direction. The width of the opening at the upper end of the fixed needle hole is smaller than the width of the tail of the needle 8. When the tail of the needle 8 enters the fixed needle hole, when the tail of the needle 8 is pressed into the fixed needle hole, the tail of the needle 8 will not fall out of it. When the tail of the needle 8 is not pressed, it is ejected from the fixed needle hole by the elastic fixing ring 7. Then, the needle rod of the needle 8 passes through the collection port 12 under the action of gravity and enters the discarded needle collection tube 11.

[0046] A method for using a veterinary syringe with a continuously replaceable needle, comprising syringe filling, injection, and needle replacement;

[0047] The syringe is loaded, the needle 8 is installed in the needle supply box 2 (the needle 8 can be placed into the needle supply box 2 from the bottom or side of the needle supply box 2), and has a continuous upward movement tendency under the action of the spring 23. The syringe 4 is injected with liquid medicine, and the syringe 4 is placed in the syringe jacket 3 through the opening on the open sleeve 31 of the syringe jacket 3. The rear end of the syringe 4 contacts the push rod 32, and the front end of the syringe 4 is connected to the needle connector 33;

[0048] For injection, the push rod 32 of the syringe jacket 3 is pushed, and the syringe jacket 3 slides along the guide groove 9. After the needle is pushed out from the upper opening of the needle supply box 2, it is connected with the needle receiving head 33 at the front end of the syringe jacket 3. At the same time, the front end of the needle 8 is pushed into the fixed needle hole of the needle push card 6 under the sliding of the syringe jacket 4, and then passes through the sleeve from the needle outlet 5. When the syringe jacket 3 cannot slide, the push rod 32 pushes the rear end of the syringe 4 to start injection;

[0049] After the needle replacement and injection steps are completed, the syringe jacket 3 is pulled back by the push rod 32, and the injected needle 8 is separated from the needle receiving head 33 at the front end of the syringe jacket 3, and falls into the discarded needle collection tube 11 along the collection port 12 under the action of gravity. When the syringe jacket 3 leaves the upper end opening of the needle supply box 2, the needle supply box 2 pushes out the unused needle 8, and then repeats the above action to achieve continuous injection.

[0050] The concept of the present invention is similar to the structure of a pistol continuous shooting.

Claims

1. A veterinary syringe with a continuously replaceable needle, characterized in that: The veterinary syringe comprises a sleeve, a needle supply box and a syringe jacket that can slide along the sleeve, and the syringe is arranged in the syringe jacket; A needle outlet is provided on the surface of the sleeve, a needle pusher is provided between the needle outlet and the syringe jacket, and a fixed needle hole is provided on the needle pusher; The center line of the needle outlet, the center line of the fixed needle hole of the push needle card and the center line of the syringe arranged in the syringe jacket are on the same straight line; The needle supply box is connected to the sleeve, and a needle supply port is provided at the upper end of the needle supply box, and the needle supply port penetrates into the sleeve from the sleeve wall between the needle push card and the syringe jacket; The needle supply box includes a box body, a cushion block is provided at the bottom of the box body, and a first spacer is provided between one end of the cushion block and the inner wall of the box body; A spring is provided in the first interval and an ejector slider is provided on the spring; A slideway is provided in the box along the trajectory of movement of the ejector slider; The ejector slider can slide along the slideway; The inner wall of the sleeve is provided with a plurality of guide grooves, and the outer wall of the syringe jacket is provided with a guide column; The guide column can slide along the guide slot; The veterinary syringe also includes a discarded needle collection cylinder, the upper end of which is provided with a collection port, and the collection port is connected between the needle pusher card and the needle outlet of the sleeve; The push pin card includes a vertical plate provided with a fixed pin hole and an oblique plate connected to the lower end of the vertical plate; The width of the second interval between the vertical plate and the needle outlet is smaller than the length of the needle; The syringe jacket contacts the vertical plate when sliding along the sleeve; An elastic fixing ring is provided on the edge of the fixed needle hole opposite to the syringe jacket; The syringe jacket comprises an open sleeve for placing the syringe, a guide column is arranged on the surface of the open sleeve, a push rod is arranged at one end of the open sleeve, and a needle head is arranged at the other end.

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