A handheld animal venous needle device

Abstract

A handheld animal vein needle device characterized by: including a housing, a loading mechanism, a triggering mechanism and a needle holding mechanism; The top of the housing is provided with a slide, and the loading mechanism comprises a sliding chamber, a loading spring, a spring guide plate, and a striking block; the bottom of the sliding chamber is connected to the slide in a sliding mode; the spring guide plate is located at one end of the housing, and its upper part is located in the sliding chamber; one end of the loading spring is attached to the spring plate, and the other end is connected to the striking block; the striking block is located in the sliding chamber and is in contact with, or separate from, the needle holding mechanism; The trigger mechanism comprises a trigger and a trigger return assembly; one end of the trigger extends to the outside of the housing and the other end extends to the top of the housing to contact or separate the lower end of the firing block; The needle-holding mechanism comprises a firing pin sleeve, a firing pin, a return spring, a needle holder, and a vein pusher; the firing pin sleeve is connected to one end of the housing and is in contact with the firing block, and the firing pin is located inside the firing pin sleeve; the return spring is sleeved outside the firing pin, and one end is connected to the firing pin, and the other end is connected to the needle holder; the needle holder is located at the end of the firing pin sleeve and is connected to its detachability, and the vein pusher is located on the outside of the needle holder.

Description

Technical area

[0001] The utility model relates to the technical field of acupuncture devices and relates in particular to a hand-held animal vein needle device. Background technology

[0002] Venipuncture is a common and important procedure in veterinary practice for administering medications, drawing blood, and so on. Traditional venipuncture methods often require veterinarians to rely on experience and feel, which is difficult to operate and can easily cause pain and panic in animals. Therefore, it is particularly important to develop a handheld venipuncture needle for animals that can simplify the procedure and improve puncture accuracy. Content of the utility model

[0003] The technical problem to be solved by the utility model is to provide a handheld animal vein needle device, realize fast, accurate venipuncture through mechanical structure, reduce the operation burden of veterinarians, and improve the efficiency and safety of veterinary treatment.

[0004] In order to solve the above-mentioned technical problem, the utility model provides a technical scheme comprising: a hand-held animal vein needle device, including a housing, a loading mechanism, a trigger mechanism and a needle holding mechanism.

[0005] The top of the housing is equipped with a chute, and the loading mechanism includes a sliding chamber, a loading spring, a spring guide plate, and a striker block. The bottom of the sliding chamber is connected to the chute in a sliding manner. The spring guide plate is located at one end of the housing, and its upper part is located in the sliding chamber. One end of the loading spring is mounted on the spring plate, and the other end is connected to the striker block. The striker block is located in the sliding chamber and is in contact with or separated from the needle holding mechanism.

[0006] The trigger mechanism includes a trigger and a trigger return assembly. One end of the trigger extends to the outside of the receiver, and the other end extends to the top of the receiver to contact or separate from the bottom of the firing block.

[0007] The needle holding mechanism includes a firing pin sleeve, a firing pin, a return spring, a needle holder, and a vein pusher. The firing pin sleeve is connected to one end of the housing and is in contact with the firing block, and the firing pin is located inside the firing pin sleeve. The return spring is sleeved outside the firing pin, and one end is connected to the firing pin, and the other end is connected to the needle holder. The needle holder is located at the end of the firing pin sleeve and connected to its removability, and the vein pusher is located outside the needle holder.

[0008] The advantages of the utility model compared to the prior art are that the utility model enables rapid and accurate venipuncture through a mechanical structure, reduces the surgical burden on veterinarians, and improves the efficiency and safety of medical treatment for animals. At the same time, the utility model also offers the advantages of simple structure, convenient operation, and easy maintenance. Description with drawings Fig. is a schematic structural diagram of a handheld animal vein needle device for animals according to the utility model. Fig. is a schematic rear view of the structure of a handheld animal vein needle device for animals of the utility model. Fig. is a schematic structural diagram of the load spring and spring guide plate. Fig. is a schematic structural diagram of the spring guide plate. Fig. is a schematic structural diagram of the sliding bore and the striking block. Fig. is a schematic structural diagram of the striking block. Fig. is a schematic structural diagram of the trigger reset assembly. Fig. is the second schematic structural diagram of the trigger return assembly. Fig. is a schematic structural diagram of the firing pin sleeve, firing pin and return spring. Fig. is a schematic structural diagram of the firing pin sleeve. Fig. is a schematic structural diagram of the firing pin. Fig. is a schematic structural diagram of the sliding bore limit block.

[0009] As shown in the pictures: 1. Housing, 2. Slide, 3. Sliding bore, 4. Loading spring, 5. Spring guide plate, 6. Striking block, 7. Trigger, 8. Firing pin sleeve, 9. Firing pin, 10. Return spring, 11. Needle holder, 12. Vein depressor, 13. Sliding part, 14. Striking part, 15. Sliding piece, 16. Clamping block, 17. Limit block with sliding bore, 18. Locking block, 19. End blocking plate, 20. Guide post, 21. Return housing, 22. Return spring, 23, Mounting block, 24. Elastic slot, 25. Impact limit block. The specific embodiment

[0010] The utility model discloses a handheld animal vein needle device, for further detailed descriptions in conjunction with the accompanying drawings below.

[0011] In conjunction with the accompanying drawings 1 to 12, the utility model discloses a hand-held animal vein needle device as follows: A handheld animal vein needle device including a housing 1, a loading mechanism, a trigger mechanism, and a needle holding mechanism. A chute 2 is provided on the top of the housing 1 to guide the sliding movement of the loading mechanism. The loading mechanism includes a sliding chamber 3, a loading spring 4, a spring guide plate 5, and a striker block 6. The bottom of the sliding chamber 3 is connected to the chute 2 and can slide back and forth within the housing 1. The spring guide plate 5 is located at one end of the housing 1, with its upper part located within the sliding chamber 3, and serves to fix one end of the loading spring 4. The other end of the loading spring 4 is connected to the striker block 6 to provide striking force to the striker block 6. The striker block 6 is located within the sliding chamber 3 and is in contact with the needle holding mechanism and is used to push the needle holding mechanism for piercing during firing.

[0012] The trigger mechanism includes a trigger 7 and a trigger reset assembly for the trigger 7. One end of the trigger 7 extends to the outside of the veterinary operating housing 1. The other end extends to the top of the housing 1 to contact or separate from the lower end of the striking block 6 to control the striking timing of the striking block 6.

[0013] The needle holding mechanism consists of a firing pin sleeve 8, a firing pin 9, a return spring 10, a needle holder 11, and a vein pusher 12. The firing pin sleeve 8 is connected to one end of the housing 1 and is in contact with the striking block 6, serving to secure and support the firing pin 9. The firing pin 9 is arranged inside the firing pin sleeve 8 and serves to perform the puncture operation. The return spring 10 is sheathed outside the firing pin 9, one end is connected to the firing pin 9, and the other end is connected to the needle holder 11 and serves to reset the firing pin 9 after puncture. The needle holder 11 is arranged at the end of the firing pin sleeve 8 and threaded therewith, serving to fix the needle. The vein pusher 12 is arranged on the outside of the needle holder 11 and serves to compress the vein during the puncture, thereby improving the puncture success rate.

[0014] In addition, the sliding chamber 3 includes a sliding part 13 and a striking part 14. The lower end of the sliding part 13 is provided with a sliding piece 15 that slides with the slide 2 to guide the sliding of the sliding chamber 3. The striking part 14 is a round tube and is provided at one end of the sliding part 13 for receiving the striking block 6. The lower end of the striking block 6 extends from the striking part 14 and is provided with a striking limiting block 25. By pulling the sliding chamber 3, the sliding part 13 moves along the slide 2 and simultaneously, the striking part 14 slides. When the striking limiting block 25 at the lower end of the striking block 6 is stuck in contact with the end of the trigger 7, the loading process is executed, the sliding chamber is released at this moment, and the sliding chamber 3 automatically rebounds and resets under the action of the loading spring 4.

[0015] The inner front of the housing 1 is provided with a slide chamber limiting block 17. When the slide chamber rebounds and resets, the clamping block 16 on the underside of the striking part 14 contacts the locking block 18 on the top of the slide chamber limiting block 17, which can prevent the slide chamber 3 from sliding further forward and prevent the striking block 6 from excessively impacting the firing pin sleeve 8 of the needle holding mechanism.

[0016] The spring guide plate includes an end blocking plate 19 and a guide post 20. The lower part of the end blocking plate 19 is located inside the housing 1 and is located at the end, serving to fix the guide post 20. The guide post 20 is provided at the upper end of the end blocking plate 19 and is located in the sliding chamber 3 to guide the extension and contraction of the loading spring 4. One end of the loading spring 4 is placed outside the guide post 20, and the other end extends inside the striking block 6 to provide a stable striking force for the striking block 6.

[0017] The return assembly of the trigger 7 includes a return housing 21 and a return spring 22. The return housing 21 is disposed within the housing 1 and serves to house the return spring 22 and the trigger 7. The return spring 22 is disposed within the return housing 21 and serves to provide return force for the trigger 7. The middle part of the trigger 7 is located within the return housing 21 and is rotationally connected thereto and can swing back and forth about the pivot point. One end of the trigger 7 extends to the outside of the housing 1 for pulling and firing, and the other end extends to the rear of the housing 1 to contact the strike limiting block 25 at the lower end of the striker block 6 and separate it from the striker block 6 when the trigger 7 is released. The loading spring 4 drives the firing block 6 to slide forward and strike the firing pin 9.

[0018] The lower end of the firing pin sleeve 8 is provided with a mounting block 23, and the mounting block 23 is inserted into the housing 1 and fixed inside and serves to attach the firing pin sleeve 8 to the housing 1. The upper end of the firing pin sleeve 8 is in contact with the striking block 6 and serves to press the firing pin 9 and then strike the injection needle for piercing when the striking block 6 is hit.

[0019] The needle card holder 11 is provided with an elastic slot 24 for securing the needle. The rear end of the vein pusher 12 is connected to the needle holder 11, and the front end extends forward and bends downward to form an arcuate pressure ring. It is used to compress the vein during puncture and improves puncture accuracy.

[0020] The utility model and its embodiments have been described above. This description is not limiting. What is shown in the drawings is only one embodiment of the utility model, and the actual structure is not limited to it. In short, if an average person skilled in the art can be inspired by it and, without deviating from the creative purpose of the utility model, design a structural method and embodiment similar to the technical solution without creativity, they all fall under the protection of the utility model.

Claims

[1] A handheld animal vein needle device characterized by: including a housing, a loading mechanism, a trigger mechanism, and a needle retaining mechanism; The top of the housing is provided with a chute, and the loading mechanism includes a sliding chamber, a loading spring, a spring guide plate, and a striking block; the bottom of the sliding chamber is connected to the chute in a sliding mode; the spring guide plate is arranged at one end of the housing, and its upper part is located in the sliding chamber; one end of the loading spring is mounted on the spring plate, and the other end is connected to the striking block; the striking block is arranged in the sliding chamber and is in contact with or separated from the needle holding mechanism; The trigger mechanism includes a trigger and a trigger return assembly; one end of the trigger extends to the outside of the housing and the other end extends to the top of the housing to contact or separate from the lower end of the firing block; The needle holding mechanism includes a firing pin sleeve, a firing pin, a return spring, a needle holder, and a vein pusher; the firing pin sleeve is connected to one end of the housing and is in contact with the firing block, and the firing pin is arranged inside the firing pin sleeve; the return spring is sleeved outside the firing pin, and one end is connected to the firing pin, and the other end is connected to the needle holder; the needle holder is arranged at the end of the firing pin sleeve and connected to its removability, and the vein pusher is arranged on the outside of the needle holder. [2] A hand-held animal vein needle device according to claim 1, characterized by that: the sliding chamber comprises a sliding part and a striking part, the lower end of the sliding part is provided with a sliding piece that slides with the chute; the striking part is a round tube and is provided with a block at one end of the striking part; the striking block is arranged inside the striking part; the lower end of the striking block protrudes from the striking part and is provided with an impact limiting block. [3] A hand-held animal vein needle device according to claim 2, characterized by that: the inner front part of the housing is provided with a limit block with a sliding chamber; the clamping block on the bottom of the striking part contacts the locking block on the top of the limit block to prevent the sliding bore from contacting the needle holding mechanism. [4] A hand-held animal vein needle device according to claim 3, characterized by that: the spring guide plate comprises an end blocking plate and a guide column; the lower part of the end blocking plate is located inside the receiver and is situated at the end; the upper end of the end blocking plate extends into the sliding chamber; the guide column is arranged at the upper end of the end blocking plate and is located in the sliding chamber; one end of the loading spring is placed outside the guide column and the other end extends into the interior of the striking block. [5] A hand-held animal vein needle device according to claim 4, characterized bythat the trigger return assembly comprises a return housing and a return spring, the return housing is disposed within the outer housing and the return spring is disposed therein; the central part of the trigger is located inside the return housing and is rotatably connected thereto; one end of the trigger extends to the outside of the housing for pressing and firing, and the other end extends to the rear of the housing to contact the strike limiting block at the lower end of the striker block. [6] A hand-held animal vein needle device according to claim 5, characterized by that: the lower end of the firing pin sleeve is provided with a mounting block, the mounting block is inserted into the housing and secured; the upper end of the firing pin sleeve rests against the firing block. [7] A hand-held animal vein needle device according to claim 6, characterized bythat: the needle holder is provided with an elastic slit; the rear end of the vein pusher is connected to the needle holder, and the front end extends forward and bends downward to form an arcuate pressure ring.

Images