阅读说明：本技术 一种动物实验用注射器 (Syringe for animal experiments ) 是由 王梓睿 刘红 于 2019-11-14 设计创作，主要内容包括：本发明涉及一种注射器,属于医疗器械技术领域,包括注射管、芯杆、活塞、按手、外套卷边、锥头,注射管由注射管(1-1)、注射管(1-2)成贯通的U型结构,底部通过导流管贯通连接；芯杆底部置于注射管(1-1)中,活塞固定连接在芯杆底部并与注射管(1-1)管壁紧密配合；按手固定连接在芯杆的顶部；外套卷边与注射管(1-1)的上部固定连接；锥头位于注射管(1-2)的上部,注射管(1-2)上设有刻度线。注射时,可以用一只手按住动物夹具,另一只手可以用手掌把持注射器前部,操作针头,用拇指顺势向下推动按手完成注射,操作方便,提高了实验效率。(The invention relates to an injector, which belongs to the technical field of medical instruments and comprises an injection tube, a core rod, a piston, a press handle, an outer sleeve curled edge and a conical head, wherein the injection tube is in a communicated U-shaped structure formed by an injection tube (1-1) and an injection tube (1-2), and the bottoms of the injection tubes are communicated and connected through a flow guide tube; the bottom of the core bar is arranged in the injection tube (1-1), and the piston is fixedly connected to the bottom of the core bar and is tightly matched with the tube wall of the injection tube (1-1); the press handle is fixedly connected to the top of the core rod; the outer sleeve curled edge is fixedly connected with the upper part of the injection tube (1-1); the conical head is positioned at the upper part of the injection tube (1-2), and the injection tube (1-2) is provided with scale marks. During injection, the animal clamp can be pressed by one hand, the front part of the injector can be held by the palm of the other hand, the needle head is operated, the press hand is pushed downwards by the thumb to complete injection, the operation is convenient, and the experimental efficiency is improved.)

1. The utility model provides an injector for animal experiments, includes syringe (1), core bar (3), piston (4), according to hand (5), overcoat turn-up (6), conical head (7), its characterized in that: the injection tube (1) is in a communicated U-shaped structure formed by the injection tube (1-1) and the injection tube (1-2), and the bottoms of the injection tubes are communicated and connected through the flow guide tube (2); the bottom of the core rod (3) is arranged in the injection tube (1-1), and the piston (4) is fixedly connected to the bottom of the core rod (3) and is tightly matched with the tube wall of the injection tube (1-1); the press hand (5) is fixedly connected to the top of the core rod (3); the outer sleeve curled edge (6) is fixedly connected with the upper part of the injection tube (1-1); the conical head (7) is positioned at the upper part of the injection tube (1-2), and the injection tube (1-2) is provided with scale marks (8).

2. The syringe for animal experiments according to claim 1, characterized in that: the top of the injection tube (1-2) is 10-40mm higher than that of the injection tube (1-1).

3. The syringe for animal experiments according to claim 1, characterized in that: the inner diameter of the injection tube (1-2) is one half to one eighth of the inner diameter of the injection tube (1-1).

4. The syringe for animal experiments according to claim 1, characterized in that: the outer diameter of the flow guide pipe (2) is equal to that of the injection pipe (1-2).

5. The syringe for animal experiments according to claim 1, characterized in that: the injection pipe (1-1), the flow guide pipe (2) and the injection pipe (1-2) are fixedly connected into a whole; one side wall of the injection pipe (1-1) is intersected with the side wall of the adjacent injection pipe (1-2) into a whole, and the bottom of the injection pipe is communicated through a communication port (9).

The technical field is as follows:

the invention relates to an injector, in particular to an injector for animal experiments, and belongs to the technical field of medical instruments.

Background art:

at present, injectors used in clinical animal experiments are common medical injectors, and are inconvenient to use due to animal incompatibility in the animal experiment process. For example, in a heart perfusion experiment of a white mouse, the left hand holds the clamp to adjust the heart position, the right hand needs to hold the injector at the front part of the injector in the injection process and push the injector core rod from the bottom of the injector, and the injection is very inconvenient and the working efficiency is low.

The invention content is as follows:

the invention aims to solve the defects of the prior art and provide a high-efficiency injector for animal experiments, which is convenient for one hand to simultaneously and smoothly carry out two operations.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

an injector for animal experiments comprises an injection tube (1), a core rod (3), a piston (4), a press handle (5), an outer sleeve turned edge (6) and a conical head (7), wherein the injection tube (1) is of a communicated U-shaped structure formed by the injection tube (1-1) and the injection tube (1-2), and the bottoms of the injection tube and the injection tube are communicated and connected through a guide tube (2); the bottom of the core rod (3) is arranged in the injection tube (1-1), and the piston (4) is fixedly connected to the bottom of the core rod (3) and is tightly matched with the tube wall of the injection tube (1-1); the press hand (5) is fixedly connected to the top of the core rod (3); the outer sleeve curled edge (6) is fixedly connected with the upper part of the injection tube (1-1); the conical head (7) is positioned at the upper part of the injection tube (1-2), and the injection tube (1-2) is provided with scale marks (8).

The top of the injection tube (1-2) is 10-40mm higher than that of the injection tube (1-1).

Further, the inner diameter of the injection tube (1-2) is one half to one eighth of the inner diameter of the injection tube (1-1).

The outer diameter of the draft tube (2) is equal to that of the injection tube (1-2).

The injection pipe (1-1), the draft tube (2) and the injection pipe (1-2) are preferably fixedly connected into a whole, one side wall of the injection pipe (1-1) is intersected with the side wall of the adjacent injection pipe (1-2) into a whole, and the bottom of the injection pipe is communicated through a communicating port (9).

The technical scheme of the invention has the beneficial effects that: when an injection experiment is performed on an animal, two operations of holding the injector at the front part of the injector and injecting medicine from the front part of the injector can be completed smoothly by one hand, the operation is convenient, and the experiment efficiency is improved.

Description of the drawings:

embodiments of the invention are further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of one of the structural schematics of the present invention;

FIG. 3 is a second schematic structural diagram of the present invention;

FIG. 4 is a sectional view B-B of a second exemplary structure of the present invention.

In the figure: 1-1 parts of injection tube, 1-2 parts of injection tube, 2 parts of flow guide tube, 3 parts of core rod 4, piston, 5 parts of press handle, 6 parts of outer sleeve turned edge, 7 parts of conical head, 8 parts of scale mark, 9 parts of communication port.

The specific implementation mode is as follows: