阅读说明：本技术 一种鼠用尾静脉注射固定装置 (Tail intravenous injection fixing device for mouse ) 是由 陈静芹 陈秋霞 方刚 罗业浩 曹知勇 张耀中 于 2020-05-25 设计创作，主要内容包括：一种鼠用尾静脉注射固定装置,包括漏尾拧盖和固定腔体,所述漏尾拧盖内壁上设置有内螺纹,所述固定腔体一端的外壁上设置有与内螺纹相匹配的外螺纹,另一端内穿设有伸缩活塞,所述伸缩活塞上设置有推拉把手,所述推拉把手的一端与伸缩活塞固定连接,另一端延伸至固定腔体的外部,所述漏尾拧盖上设置有漏尾孔,所述固定腔体上设置有多个透气孔；本发明体积小巧,调节灵活,方便在进行尾静脉注射时固定老鼠,节省人力,提高注射效率。(A tail intravenous injection fixing device for a mouse comprises a tail leakage screw cover and a fixing cavity, wherein an internal thread is arranged on the inner wall of the tail leakage screw cover, an external thread matched with the internal thread is arranged on the outer wall of one end of the fixing cavity, a telescopic piston is arranged in the other end of the fixing cavity in a penetrating manner, a push-pull handle is arranged on the telescopic piston, one end of the push-pull handle is fixedly connected with the telescopic piston, the other end of the push-pull handle extends to the outside of the fixing cavity, a tail leakage hole is formed in the tail leakage screw cover, and a plurality of air holes are formed in the fixing cavity; the tail vein injection device is small in size, flexible in adjustment, convenient for fixing mice during tail vein injection, labor-saving and capable of improving injection efficiency.)

1. The utility model provides a tail intravenous route fixing device is used to mouse which characterized in that: including leaking tail screw cap (1) and fixed cavity (2), it is provided with internal thread (3) on screw cap (1) inner wall to leak, be provided with on the outer wall of fixed cavity (2) one end with internal thread (3) assorted external screw thread (4), wear to be equipped with telescopic piston (5) in the other end, be provided with push-and-pull handle (8) on telescopic piston (5), the one end and telescopic piston (5) fixed connection of push-and-pull handle (8), the other end extend to the outside of fixed cavity (2), it is provided with on screw cap (1) and leaks tail hole (6) to leak, be provided with a plurality of bleeder vents (7) on fixed cavity (2).

2. The tail vein injection fixing device for mice of claim 1, wherein: the diameter of the air holes (7) is 0.5 cm.

3. The tail vein injection fixing device for mice of claim 1, wherein: the fixed cavity (2) comprises a cuboid shell (201) and a cylindrical inner cavity (202), and the cylindrical inner cavity (202) is arranged in the cuboid shell (201).

4. The tail vein injection fixing device for mice of claim 1, wherein: the diameter of the tail leakage hole (6) is 0.4 cm or 0.8 cm.

Technical Field

The invention relates to the technical field, in particular to a tail vein injection fixing device for a mouse.

Background

Tail vein injection of rats is often used in cases of malabsorption of some drug monomers or other administration methods such as oral administration. At this stage, the research on drugs is more and more intensive, and is usually conducted in the form of monomers. The absorption rate of the monomer medicine by gastric lavage is extremely low, and the absorption rate of the medicine injected subcutaneously and intraperitoneally is also extremely limited. When tail vein injection is carried out, a mouse or a rat can move violently, and the tail part is not fixed easily, so that the injection is difficult and easy to fail. Most of experimenters carry out tail vein injection through two people's cooperations at present, need fix the mouse afterbody alone in the injection process, and another person injects again, and the time spent is longer to extravagant manpower, injection inefficiency.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the tail vein injection fixing device for the mouse, which is small in size, flexible in adjustment, convenient for fixing the mouse during tail vein injection, labor-saving and capable of improving the injection efficiency.

The technical scheme adopted by the invention is as follows: the utility model provides a tail intravenous route fixing device for mouse, is including leaking tail screw cap and fixed cavity, it is provided with the internal thread on the screw cap inner wall to leak, be provided with on the outer wall of fixed cavity one end with internal thread assorted external screw thread, wear to be equipped with telescopic piston in the other end, be provided with the push-and-pull handle on the telescopic piston, the one end and the telescopic piston fixed connection of push-and-pull handle, the other end extends to the outside of fixed cavity, it is provided with the tail hole to leak on the screw cap, be provided with a plurality of bleeder vents on the fixed cavity.

Preferably, the diameter of the air holes is 0.5 cm.

Further, fixed cavity includes cuboid shell and cylindrical inner chamber, cylindrical inner chamber sets up in the cuboid shell.

Preferably, the diameter of the drain tail hole is 0.4 cm or 0.8 cm.

Compared with the prior art, the invention has the following beneficial effects: the tail vein injection fixing device for the mouse is small in size and flexible in adjustment, is suitable for both the mouse and the rat, is convenient for fixing the mouse during tail vein injection, saves manpower, and greatly improves injection efficiency.

Drawings

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

FIG. 2 is a schematic cross-sectional structural view of the present invention;

fig. 3 is a partially enlarged schematic view at a in fig. 2.

Detailed Description

The invention is described in detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 to 3, a tail intravenous injection fixing device for a mouse comprises a tail leakage screw cap 1 and a fixed cavity 2, wherein an inner thread 3 is arranged on the inner wall of the tail leakage screw cap 1, an outer thread 4 matched with the inner thread 3 is arranged on the outer wall of one end of the fixed cavity 2, a telescopic piston 5 is arranged in the other end in a penetrating manner, a push-pull handle 8 is arranged on the telescopic piston 5, one end of the push-pull handle 8 is fixedly connected with the telescopic piston 5, the other end of the push-pull handle extends to the outside of the fixed cavity 2, a tail leakage hole 6 is arranged on the tail leakage screw cap 1, and a plurality of air holes 7 are arranged on the fixed cavity 2.

During the use, place the mouse in fixed cavity 2, thereby adjust telescopic piston 5's position through carrying out the push-and-pull to push-and-pull handle 8, and then adjust the activity space that supplies to settle the mouse in the fixed cavity 2. Then the tail of the mouse penetrates out of the tail leaking hole 6, the tail leaking screwing cover 1 is screwed on the fixed cavity 2, and the internal thread 3 is matched with the external thread 4.

The diameter of the air holes 7 is 0.5 cm. The plurality of air holes 7 are respectively arranged along the positions of one, three, five, seven and eleven centimeters of the fixed cavity 2 at intervals.

The fixed cavity 2 comprises a cuboid housing 201 and a cylindrical inner cavity 202, and the cylindrical inner cavity 202 is arranged in the cuboid housing 201. When in use, the mouse is fixed in the cylindrical inner cavity 202, and the mouse is not easy to be injured. The external cuboid housing 201 mainly plays a role in increasing the weight of the fixed cavity 2, and is more convenient to fix when tail vein injection is carried out on a rat.

The diameter of the tail leakage hole 6 is 0.4 cm or 0.8 cm. Two tail screws 1 are preferably provided, one with a tail hole 6 of 0.4 cm diameter in one of the tail screws 1, with which the tail screw 1 is used when securing a mouse. The diameter of the tail hole 6 of the other screw-on cap 1 is 0.8 cm, and the screw-on cap 1 is used when fixing the rat.

The above embodiments are based on the technical solution of the present invention, and detailed implementation and specific operation processes are given, but the scope of the present invention is not limited to the above embodiments.