阅读说明：本技术 一种皮下注射装置 (Subcutaneous injection device ) 是由 郑鸿 刘权兴 戴纪刚 卢潇 张姣 于莎莎 于 2020-11-25 设计创作，主要内容包括：本发明提供一种皮下注射装置,包括安装环、固定卡和注射组件；安装环和固定卡用于将注射组件固定在动物脖子上,注射组件包括固定架、导向筒、注射筒、注射推杆和压缩弹簧,导向筒可拆卸地设置在固定架上,注射筒设置在导向筒内,注射筒的外径比导向筒的内径小0.5～1mm,注射推杆设置在注射筒内,注射推杆、注射筒和注射针头构成注射器；夹持架上端设置有夹持口,夹持口上设置有夹持公齿,注射推杆下部为圆柱形下推杆,注射推杆的上部为扁形的上推杆,上推杆上设置有夹持母齿,压缩弹簧设置在注射推杆和夹持架之间。本发明能够被固定在动物脖子上,注射过程能自动完成,使得动物注射过程变得容易、高效。(The invention provides a subcutaneous injection device, which comprises a mounting ring, a fixing clip and an injection assembly, wherein the mounting ring is fixedly connected with the injection assembly; the mounting ring and the fixing clamp are used for fixing the injection assembly on the neck of an animal, the injection assembly comprises a fixing frame, a guide cylinder, an injection push rod and a compression spring, the guide cylinder is detachably arranged on the fixing frame, the injection cylinder is arranged in the guide cylinder, the outer diameter of the injection cylinder is smaller than the inner diameter of the guide cylinder by 0.5-1 mm, the injection push rod is arranged in the injection cylinder, and the injection push rod, the injection cylinder and an injection needle form an injector; the clamping frame upper end is provided with the centre gripping mouth, is provided with the public tooth of centre gripping on the centre gripping mouth, and injection push rod lower part is cylindrical push down rod, and the upper portion of injection push rod is flat last push rod, is provided with the female tooth of centre gripping on the last push rod, and compression spring sets up between injection push rod and clamping frame. The invention can be fixed on the animal neck, and the injection process can be automatically completed, so that the animal injection process becomes easy and efficient.)

1. A subcutaneous injection device, comprising: a mounting ring, a retaining clip and an injection assembly;

the mounting ring is of a bendable strip-shaped structure, and injection through holes are formed in the mounting ring;

the fixing clamp comprises a lower plate, an upper plate, a connecting frame and an occlusion spring, the lower plate is fixedly arranged at one end of the mounting ring, the connecting frame is fixedly arranged on the lower plate, the upper plate is hinged on the connecting frame, the occlusion spring is arranged between the lower plate and the upper plate, and an occlusion part capable of clamping or loosening the other end of the mounting ring is formed between the lower plate and the upper plate;

the injection assembly comprises a fixed frame, a guide cylinder, an injection push rod and a compression spring, wherein the fixed frame comprises a base and a clamping frame fixed on the base, the base is arranged on the mounting ring, a guide hole is formed in the base, the guide cylinder is detachably arranged in the guide hole, the injection cylinder is arranged in the guide cylinder, the outer diameter of the injection cylinder is 0.5-1 mm smaller than the inner diameter of the guide cylinder, an injection needle arranged on the injection cylinder is positioned above the injection through hole, the injection push rod is arranged in the injection cylinder, and the injection push rod, the injection cylinder and the injection needle form an injector;

the injection device comprises a clamping frame, and is characterized in that a clamping opening is formed in the upper end of the clamping frame, clamping male teeth are arranged on the clamping opening, a cylindrical lower push rod matched with an injection tube is arranged at the lower part of an injection push rod, a limiting boss is arranged in the middle of the injection push rod, a flat upper push rod is arranged at the upper part of the injection push rod, clamping female teeth capable of being meshed with the clamping male teeth are arranged on the upper push rod along the rod direction, the clamping female teeth are located on two sides of a long shaft on the flat section of the upper push rod, and a compression spring is arranged between the limiting boss and the clamping frame.

2. A hypodermic injection device according to claim 1, wherein the guide barrel is threadably connected to the guide bore.

3. A hypodermic injection device as claimed in claim 2, wherein the base is riveted to the mounting ring.

4. A hypodermic injection device according to claim 1, wherein the mating surfaces of the lower and upper plates are provided with anti-slip strips.

5. A hypodermic injection device according to claim 4, wherein the end of the mounting ring remote from the mounting clip is provided with anti-slip strips.

6. A hypodermic injection device according to claim 1, wherein the upper end of the push-up rod is provided with a handle.

Technical Field

The invention relates to the technical field of a medical device ring for animals, in particular to a subcutaneous injection device.

Background

When large animals are injected, the buttocks or neck with relatively developed muscular tissues are generally selected for intramuscular injection. In the existing injection process, an injection needle is generally manually penetrated into subcutaneous tissues of animals, and then the medicine is pushed into the bodies of the animals; because whole injection process can cause the animal to be painful, the animal can struggle during the injection, and large-scale animal strength is big splenic qi violent and is irritated, very easily causes the injection process to break or unsuccessful, causes the syringe needle to be broken even, and in addition, the depth of syringe needle injection in the animal struggles is also not good to master, leads to having the operation when carrying out intramuscular injection to large-scale animal at present and is more difficult, the problem of inefficiency.

Disclosure of Invention

The invention provides a subcutaneous injection device, aiming at the problems of difficult operation and low efficiency when a large animal is injected with muscle in the prior art.

According to an embodiment of the present invention, a subcutaneous injection device comprises: a mounting ring, a retaining clip and an injection assembly; the mounting ring is of a bendable strip-shaped structure, and injection through holes are formed in the mounting ring;

the fixing clamp comprises a lower plate, an upper plate, a connecting frame and an occlusion spring, the lower plate is fixedly arranged at one end of the mounting ring, the connecting frame is fixedly arranged on the lower plate, the upper plate is hinged on the connecting frame, the occlusion spring is arranged between the lower plate and the upper plate, and an occlusion part capable of clamping or loosening the other end of the mounting ring is formed between the lower plate and the upper plate;

the injection assembly comprises a fixed frame, a guide cylinder, an injection push rod and a compression spring, wherein the fixed frame comprises a base and a clamping frame fixed on the base, the base is arranged on the mounting ring, a guide hole is formed in the base, the guide cylinder is detachably arranged in the guide hole, the injection cylinder is arranged in the guide cylinder, the outer diameter of the injection cylinder is 0.5-1 mm smaller than the inner diameter of the guide cylinder, an injection needle arranged on the injection cylinder is positioned above the injection through hole, the injection push rod is arranged in the injection cylinder, and the injection push rod, the injection cylinder and the injection needle form an injector;

the injection device comprises a clamping frame, and is characterized in that a clamping opening is formed in the upper end of the clamping frame, clamping male teeth are arranged on the clamping opening, a cylindrical lower push rod matched with an injection tube is arranged at the lower part of an injection push rod, a limiting boss is arranged in the middle of the injection push rod, a flat upper push rod is arranged at the upper part of the injection push rod, clamping female teeth capable of being meshed with the clamping male teeth are arranged on the upper push rod along the rod direction, the clamping female teeth are located on two sides of a long shaft on the flat section of the upper push rod, and a compression spring is arranged between the limiting boss and the clamping frame.

The technical scheme has the beneficial technical effects that:

the mounting ring and the fixing clip are arranged, so that the mounting ring can be fixed on the neck of an animal before injection, and the injection assembly fixed on the mounting ring is fixed on the neck of the animal;

through the arrangement of the fixing frame, the guide cylinder, the injection push rod and the compression spring, when the compression spring is in a compressed state, the injector consisting of the injection cylinder, the injection push rod and the compression spring is in an injection state, and the injection process can be finished by the elasticity of the compression spring without manual pushing;

the upper push rod is arranged to be flat, the upper push rod is occluded through the clamping male teeth and the clamping female teeth, when injection is needed, the upper push rod only needs to be rotated for 90 degrees, the clamping male teeth and the clamping female teeth are disengaged, and the pressure of the compression spring enables the injection to be automatically carried out;

in conclusion, the injection assembly is fixed on the neck of the animal, and the whole injection process can be automatically completed only by rotating the upper push rod for 90 degrees, so that the struggle and the movement of the animal caused by pain during injection can not influence the injection process basically, and the whole injection process is easy and efficient.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

FIG. 1 is a schematic view of a hypodermic injection device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a mounting ring and a fixing clip according to an embodiment of the present invention;

FIG. 3 is a schematic view of a hypodermic injection device according to an embodiment of the present invention in an inoperative position;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a schematic structural view of an injection assembly provided in accordance with an embodiment of the present invention;

FIG. 6 is a front cut-away view of a fixing frame according to an embodiment of the present invention;

FIG. 7 is a schematic top view of a fixing frame according to an embodiment of the present invention;

FIG. 8 is an enlarged view of the point B in FIG. 6;

FIG. 9 is a schematic structural view of an injection plunger according to an embodiment of the present invention;

fig. 10 is a cross-sectional view taken along line C-C of fig. 9.

Reference numerals:

1. a mounting ring; 2. fixing the card; 3. an injection assembly; 11. injecting a via hole; 21. a lower plate; 22. an engagement spring; 23. a connecting frame; 24. an upper plate; 31. a fixed mount; 32. an injection tube; 33. an injection push rod; 34. a compression spring; 35. an injection needle; 36. a guide cylinder; 311. a clamping frame; 312. a base; 313. a clamping port; 314. clamping the male teeth; 331. a push rod is arranged; 332. a lower push rod; 333. a limiting boss; 334. clamping the female teeth; 335. a handle.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1-3, a hypodermic injection device comprises a mounting ring 1, a retainer clip 2 and an injection assembly 3; the mounting ring 1 is a bendable band-shaped structure, and the mounting ring 1 is made of cowhide so that it can be strapped around the neck of an animal like a belt. As shown in fig. 2, the mounting ring 1 is provided with an injection through hole 11; the injection through hole 11 is used for injecting an injection needle so that the injection needle penetrates into subcutaneous tissue of an animal.

Referring to fig. 4, the fixing clip 2 includes a lower plate 21, an upper plate 24, a connecting bracket 23 and a locking spring 22, and the fixing clip 2 is used to fix the mounting ring 1 in a ring shape, which functions as a belt buckle, but the fixing clip 2 is more convenient to operate. The lower plate 21 is fixedly arranged at one end of the mounting ring 1, and the lower plate 21 is riveted on the mounting ring 1 by aluminum nails in a riveting mode generally. The connecting frame 23 is fixedly arranged on the lower plate 21, the upper plate 24 is hinged on the connecting frame 23, the meshing spring 22 is arranged between the lower plate 21 and the upper plate 24, and a meshing part capable of clamping or loosening the other end of the mounting ring 1 is formed between the lower plate 21 and the upper plate 24. In specific use, the mounting ring 1 shown in fig. 3 is wound around the animal neck, one end of the upper plate 24 is pressed to compress the meshing spring 22, the other end of the mounting ring 1 is placed between the lower plate 21 and the upper plate 24, and the finger is loosened after the mounting ring 1 is tightened to fix the mounting ring 1 on the animal neck.

Referring to fig. 5, the injection assembly 3 includes a holder 31, a guide cylinder 36, an injection cylinder 32, an injection plunger 33, and a compression spring 34. The base 312 is arranged on the mounting ring 1, the base 312 is provided with a guide hole, the guide cylinder 36 is detachably arranged in the guide hole, the injection cylinder 32 is arranged in the guide cylinder 36, the outer diameter of the injection cylinder 32 is 0.5-1 mm smaller than the inner diameter of the guide cylinder 36, the injection needle 35 arranged on the injection cylinder 32 is positioned above the injection through hole 11, the injection push rod 33 is arranged in the injection cylinder 32, and the injection push rod 33, the injection cylinder 32 and the injection needle 35 form an injector.

In the above structure, the outer diameter of the injection tube 32 is set to be 0.5-1 mm smaller than the inner diameter of the guide cylinder 36, so that the injection tube 32 can flexibly move in the guide cylinder 36, and thus, when the injection push rod 33 moves downward under the action of external force, because the resistance of the relative movement between the injection tube 32 and the guide cylinder 36 is small, and the resistance of the relative movement between the injection push rod 33 and the injection tube 32 is relatively large, the injection push rod 33 has the advantages that the injection push rod 33 firstly drives the injection tube 32 to move downward to penetrate the injection needle 35 into the animal skin, the injection tube 32 moves to the lowest position and cannot continue to move downward under the resistance of the mounting ring 1, at this time, the injection needle 35 just penetrates into a proper depth, and the injection push rod 33 continues to move downward, and then sufficient pressure is generated to extrude the medicine in the. Thus, the injection push rod 33 moves downwards under the action of external force, the injection needle 35 firstly penetrates into the subcutaneous tissue to a reasonable depth, and then the medicine is injected.

As shown in fig. 6-8, the fixing frame 31 includes a base 312 and a clamping frame 311 fixed on the base 312, the clamping frame 311 is formed by two oppositely disposed bent plates, the upper opposite ports form clamping openings 313, and the clamping openings 313 are provided with clamping male teeth 314. The holder 311 is formed by two oppositely arranged bent plates as shown in fig. 6-7, which are provided to leave a space for the purpose of facilitating the manual handling of the syringe barrel 32 and the guide 36, e.g. by lifting the syringe barrel 32 with the fingers after the injection is completed to take out the needle 35 subcutaneously from the animal.

Referring to fig. 9-10, the lower portion of the injection plunger 33 is a cylindrical lower plunger 332 engaged with the syringe 32, the middle portion of the injection plunger 33 is provided with a limit boss 333, the upper portion of the injection plunger 33 is a flat upper plunger 331, the upper portion of the upper plunger 331 is provided with a clamping female tooth 334 capable of engaging with the clamping male tooth 314 along the axial direction, and the clamping female tooth 334 is located on both sides of the long axis of the flat section of the upper plunger 331, as shown in fig. 10. The compression spring 34 is disposed between the limit boss 333 and the holder 311.

The operation method of the hypodermic injection device comprises the following steps: firstly, the injection push rod 33 and the injection tube 32 are operated by hands to suck the medicine into the injection tube 32 and exhaust the air in the injection needle 35; then, the injection plunger 33 is pulled up to retract the injection needle 35 into the guide cylinder 36; then, the injection push rod 33 is rotated to make the clamping female teeth 334 on the upper push rod 331 engage with the clamping male teeth 314, so that the compression spring 34 is compressed and the injection push rod 33 is fixed by the fixing frame 31, the device is in an automatic injection state, and at the moment, attention is paid to checking whether the injection needle 35 is carelessly operated to enter air or not, and if the air enters, the air is timely discharged; then, the site to be injected is sterilized with a cotton swab, the hypodermic injection device is then secured to the animal's neck, and finally, the injection plunger is rotated 90 degrees, the gripping female teeth 334 disengage from the gripping male teeth 314, and the injection is automatically performed. After the completion, the injection tube 32 is pulled out by hand to pull out the injection needle 35 from the subcutaneous part, and then the injection push rod is rotated by 90 degrees to ensure that the clamping female teeth 334 are meshed with the clamping male teeth 314, and the device is taken down from the neck.

Because when injection needle 35 pierces the animal subcutaneous, the device is fixed on the neck and injects automatically, struggle when the animal is pricked basically does not influence the smooth completion of injection for the injection process is simple high-efficient.

In order to facilitate the removal of the guide cylinder 36 from the fixed frame 31 for maintenance and replacement, the guide cylinder 36 is in threaded connection with the guide hole of the fixed frame 31.

In order to make the structure simpler and the connection more firm, the base 312 is riveted on the mounting ring 1.

In order to improve the clamping effect of the fixing clip 2, anti-slip stripes are arranged on the occlusal surface of the lower plate 21 and the upper plate 24, and anti-slip stripes are arranged at one end of the mounting ring 1 far away from the fixing clip 2.

To facilitate the operation of the upper push rod 33, a handle 335 is provided at an upper end of the upper push rod 33.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.