Dropping bottle nozzle for laboratory mouse eye drops

Abstract

The utility model discloses a dropping bottle mouth for laboratory mouse eye drops, the dropping bottle mouth and an eye drop bottle body can be detached and matched for use, and the dropping bottle mouth is composed of a liquid outlet, a liquid outlet pipe, a bottle mouth cover and a bottle mouth embedding part; the bottle mouth embedding part is positioned on the bottom surface of the bottle mouth cover, is of an annular structure and is matched and hermetically combined with an eye drop bottle mouth; the other end of the liquid outlet pipe is fixedly positioned in the center of the upper surface of the bottle neck cover; the liquid outlet and the liquid outlet pipe are of flexible hollow structures made of elastic materials. The dropping bottle nozzle for laboratory mouse eye drops is used in cooperation with an eye drop bottle and is suitable for mouse eye drop administration, the opening of the eye drop outlet is small and is provided with a smooth arc-shaped surface, a small amount of eye drops can be dropped at a time by squeezing the bottle body in the using process, and waste is avoided; meanwhile, the liquid outlet and the liquid outlet pipe are of a soft hollow structure made of elastic materials, the cornea of the mouse can be protected against damage in the experiment process, and operation is very convenient and safe.

Description

Technical Field

[0001] The utility model belongs to the technical field of animal experiment instrument design, and relates to a design of a dropper nozzle structure for eye drops of experimental mice. Background Technique

[0002] Eye drops are one of the commonly used ophthalmic drug delivery methods, and are also a drug delivery method often used in ophthalmic animal experiments. However, there is currently a lack of a special medicine bottle suitable for eye drops of experimental mice. During the process of mouse animal experiments, researchers usually use a special eye drop bottle for human use and its set bottle mouth to drop eye drops into the eyes of mice.

[0003] The structure of a conventional eye drop bottle includes a bottle body and a dropper nozzle, which is of the extrusion type. When in use, the middle collar is removed, and then the bottle cap is tightened. The bottle mouth is punctured by the sharp needle at the top inside the bottle cap, and then the bottle body is squeezed by hand to drop the eye drops. During the process of using a common eye drop bottle to drop eye drops into the eyes of mice, the following problems will occur: The conjunctival sac of a mouse is very small, and the opening of a common eye drop bottle mouth is too large. If the bottle body is squeezed too hard, the eye drops will continuously overflow, resulting in waste. At the same time, when squeezing once, the volume of a normal drop of eye drops is too large for the conjunctival sac of a mouse, and a large amount of eye drops will overflow from the conjunctival sac of the mouse or it will be difficult to drop the eye drops into its conjunctival sac, resulting in waste. More often, due to the non - cooperation of the mouse during the eye drop administration, the mouse's eye or its cornea will be punctured or damaged during the struggle.

[0004] Therefore, designing an eye drop bottle that meets the requirements of eye drop administration for experimental mice can not only enable researchers to smoothly carry out experiments, but also reflect animal welfare. Content of the Utility Model

[0005] The utility model designs a dropper nozzle for eye drops of experimental mice according to the needs of animal mouse eye drug experiments. The purpose of the utility model is to provide a dropper nozzle that is used in conjunction with an eye drop bottle and is suitable for animal mouse eye drug experiments.

[0006] The utility model provides the following technical solutions to achieve:

[0007] A dropper nozzle for eye drops of experimental mice, the dropper nozzle is detachably and matchably used with an eye drop bottle body, and is characterized in that: the dropper nozzle is composed of a liquid outlet, a liquid outlet pipe, a bottle nozzle cap and a bottle nozzle embedding part;

[0008] The bottle nozzle embedding part is located on the bottom surface of the bottle nozzle cap, is a ring - shaped structure and is hermetically and matchably combined with the eye drop bottle mouth; the liquid outlet is located at the end of the liquid outlet pipe, and the other end of the liquid outlet pipe is fixedly located at the center of the upper surface of the bottle nozzle cap; the liquid outlet and the liquid outlet pipe are flexible hollow structures made of elastic materials.

[0009] Furthermore, the top of the liquid outlet has a smooth surface with an arc transition, and the inner hole diameter is less than 1 mm.

[0010] Furthermore, the axial length of the liquid outlet pipe is greater than 3 mm, and the inner hole diameter is less than 3 mm.

[0011] The annular structure of the bottle nozzle embedding part of the present utility model is hermetically combined with the inner thread of the eye drop bottle mouth through thread matching by external thread.

[0012] Another structure of the present utility model is that the annular structure of the bottle nozzle embedding part is hermetically combined with the groove around the inner wall of the eye drop bottle mouth through a tight fit with a protrusion around the ring for one week.

[0013] Beneficial effects of the present utility model: The dropper nozzle for experimental mice eye drops of the present utility model is suitable for eye drop administration to mice. The liquid outlet of the eye drops has a small opening and a smooth arc surface. When squeezing the bottle body during use, a small amount of liquid medicine can be dropped at one time, avoiding waste. At the same time, the liquid outlet and the liquid outlet pipe are composed of a soft hollow structure made of elastic material, which can protect the cornea of mice from damage during the experiment, and the operation is very convenient and safe. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of an eye drop bottle;

[0015] Figure 2 It is a schematic diagram of the structure of the dropper nozzle of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the eye drop bottle body.

[0017] In the figure, 1 is the eye drop bottle body, 11 is the eye drop bottle mouth, 2 is the dropper nozzle, 21 is the liquid outlet, 22 is the liquid outlet pipe, 23 is the bottle nozzle cap, and 24 is the bottle nozzle embedding part; d is the diameter of the eye drop bottle mouth, L is the length of the liquid outlet pipe, and D is the diameter of the bottle nozzle embedding part. Detailed Embodiments

[0018] The following further describes the present utility model in conjunction with the detailed embodiments. The detailed embodiments are further explanations of the principles of the present utility model, and do not limit the present utility model in any way. The same or similar technologies to the present utility model do not exceed the protection scope of the present utility model.

[0019] As shown in the figure, the dropper nozzle 2 of the present utility model can be disassembled and matched with the eye drop bottle body 1 for use. The dropper nozzle 2 is composed of a liquid outlet 21, a liquid outlet pipe 22, a bottle nozzle cap 23, and a bottle nozzle embedding part 24;

[0020] The bottle nozzle embedding part 24 is located at the bottom surface of the bottle nozzle cap 23, is a ring structure and is hermetically and sealingly combined with the eye drop bottle mouth 11 in a matching manner; the liquid outlet 21 is located at the end of the liquid outlet pipe 22, and the other end of the liquid outlet pipe 22 is fixedly located at the center of the upper surface of the bottle nozzle cap 23; the liquid outlet 21 and the liquid outlet pipe 22 are flexible hollow structures made of elastic materials.

[0021] In the present utility model, the top end of the liquid outlet 21 has a smooth surface with an arc transition, and the inner hole diameter is less than 1 mm. The axial length of the liquid outlet pipe 22 is greater than 3 mm, and the inner hole diameter is less than 3 mm.

[0022] In one embodiment structure of the present utility model: the ring structure of the bottle nozzle embedding part 24 is hermetically and sealingly combined with the internal thread of the eye drop bottle mouth 11 through external thread and thread matching.

[0023] Another embodiment of the present utility model is: the ring structure of the bottle nozzle embedding part 24 is hermetically and sealingly combined with the groove around the inner wall of the eye drop bottle mouth 11 through a protrusion around the ring for a tight fit.

[0024] As Figure 1 shown, the dropper nozzle 2 of the present utility model is hermetically fixed to the eye drop bottle body 1, and in combination with Figure 2 and Figure 3 , the diameter D of the bottle nozzle embedding part of the dropper nozzle 2 is matched with the diameter d of the eye drop bottle mouth of the eye drop bottle body 1 and can be hermetically combined. The combination method can be thread combination or embedding tight fit.

[0025] As Figure 2 shown, Figure 2 is a schematic structural diagram of the dropper nozzle of the present utility model; the liquid outlet 21 and the liquid outlet pipe 22 of the dropper nozzle 2 are flexible hollow structures made of elastic materials. During the experimental eye drop, even if the mouse struggles and twists and touches it, it will not cause serious damage, protecting the experimental animal. The small diameter and slender setting of the liquid outlet 21 and the liquid outlet pipe 22 can improve the control performance during drug addition and more accurately implement eye drop addition.

[0026] When the dropper nozzle of the present utility model is applied in an experiment, first remove the bottle nozzle of the ordinary eye drop bottle, then embed the dropper nozzle of the mouse eye drops of the present utility model into the bottle body, then invert the eye drop bottle, and start dropping medicine on the mouse's eye after being fixed.

Claims

1. A dropper bottle nozzle for experimental mouse eye drops, the dropper bottle nozzle and the eye drop bottle body can be detached and matched for use, characterized in that: The dropper bottle nozzle is composed of a liquid outlet, a liquid outlet pipe, a bottle nozzle cover and a bottle nozzle embedded part; The bottle mouth embedding part is located on the bottom surface of the bottle mouth cover, which is an annular structure and is sealed and matched with the eye drop bottle mouth; the liquid outlet is located at the end of the liquid outlet tube, and the other end of the liquid outlet tube is fixed at the center of the upper surface of the bottle mouth cover; the liquid outlet and the liquid outlet tube are flexible hollow structures made of elastic material.

2. The dropper bottle nozzle for experimental mouse eye drops according to claim 1, characterized in that: The top of the liquid outlet has a smooth surface with arc transition, and the inner hole diameter is less than 1mm.

3. The dropper bottle mouth for experimental mouse eye drops according to claim 1, characterized in that: The axial length of the liquid outlet pipe is greater than 3 mm, and the inner hole diameter is less than 3 mm.

4. The dropper bottle nozzle for experimental mouse eye drops according to claim 1, characterized in that: The annular structure of the bottle mouth embedding part is sealed and combined with the internal thread of the eye drop bottle mouth through thread matching via the external thread.

5. The dropper bottle nozzle for experimental mouse eye drops according to claim 1, characterized in that: The annular structure of the bottle mouth embedding part is tightly matched and sealed with a groove around the inner wall of the eye drop bottle mouth through a protrusion around the ring.

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