Eyedrop dropping administration device capable of realizing uniform drops

Abstract

The utility model provides an eyedrop dropping administration device capable of realizing uniform drops, which comprises an eyedrop bottle body, a nozzle and a bottle cap, and is similar to the existing product in structure, so that the impact influence on the original production and filling equipment is small, and the cost is lower than that of an eyedrop administration device with a one-way valve; a nozzle flow channel is formed in the middle of the nozzle and is of a big-end-up horn-mouth-shaped structure, and a nozzle liquid medicine buffer area is arranged on the side portion of the nozzle flow channel. When liquid drops are dropped, liquid medicine is slowly collected on the end face of the nozzle through the buffer area and the flow channel under the action of extrusion force to form liquid drops, the extrusion force is better controlled, the problems that the amount of eye drops dropped into eyes fluctuates greatly and the liquid drops are not uniform are solved, and the effect that the liquid drops drop out uniformly is achieved. After liquid dropping is completed, under the action of natural gravity and surface tension of liquid medicine, residual eye drops in the flow channel cannot flow back to the bottle body, even if the residual eye drops in the flow channel are polluted, the eye drops in the bottle body cannot be affected, and therefore the service life of the eye drops is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to an eye drop administration device for realizing uniform droplets. Background Art

[0002] Eye drops are one of the most commonly used pharmaceutical dosage forms for ophthalmic diseases. Nowadays, people spend more and more time using their eyes, such as looking at computers and mobile phones for a long time, etc., and it is very easy to suffer from visual fatigue and dry eye syndrome. Therefore, many people often use eye drops. According to the YBB pharmaceutical packaging material standard in China: YBB00062002 - 2015 low - density polyethylene medicinal eye drop bottles and YBB00072002 - 2015 polypropylene medicinal eye drop bottles, both have requirements for the volume of droplets. Although the standard takes the average value as the standard, the uniformity of the droplets extruded by the administration device plays a key role in this value, and it also affects the user experience of patients. Too many droplets will cause the eye drops to overflow and stick to the face, while too few will require additional drops.

[0003] Currently, there are various brands of eye drops on the market, but many of their administration structures are basically the same and simple in structure. Usually, they include a bottle body, a bottle mouth, and a bottle cap. The administration port is a hole with almost no length or a very short length on the end face of the bottle mouth. When dropping eye drops, one needs to tilt the head back, let the bottle mouth hang above the eye, and squeeze the bottle body by hand to drop the eye drops into the eye. Since the eye drops reach the administration port directly without any buffering, the liquid medicine is very easy to gush out from the administration port, and it is very difficult to control the squeezing force. Slightly carelessly, the amount of eye drops dropped into the eye will have large fluctuations and the droplets will be uneven. At the same time, after opening and using, the liquid at the bottle mouth comes into contact with the external environment, and it is very easy to bring dust, bacteria, etc. into the eye drop bottle, contaminating the whole bottle of eye drops. There are also very few brands on the market that use a complex one - way valve to achieve the uniformity of each drop of liquid and extend the service life of eye drops. For example, the German Hylo Comod system uses 2 one - way valves, with a complex structure and high costs in various aspects, including the production and manufacturing of the liquid medicine administration system, the filling of pharmaceutical manufacturers, etc. Its production equipment is expensive and monopolized by foreign countries.

[0004] Therefore, there is an urgent need for an eye drop administration device for realizing uniform droplets, which can solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an eye drop administration device for realizing uniform droplets to solve the problems existing in the above - mentioned prior art.

[0006] To achieve the above - mentioned purpose, the utility model provides the following solutions:

[0007] The utility model provides an eye drop administration device for realizing uniform droplets, which includes an eye drop bottle body. A nozzle is installed inside the bottle mouth of the eye drop bottle body. A bottle cap is screwed outside the bottle mouth through an external thread of the bottle mouth. A nozzle flow channel is opened in the middle of the nozzle. The nozzle flow channel is in a flared structure with a larger upper part and a smaller lower part. A nozzle drip orifice is arranged at the top thereof. A nozzle liquid medicine buffer area is arranged at the side part of the nozzle flow channel.

[0008] Preferably, a nozzle outer cylindrical surface is arranged at the lower part of the nozzle. The nozzle outer cylindrical surface is in tight fit with the inner side wall of the bottle mouth.

[0009] Preferably, a nozzle snap ring is arranged between the nozzle outer cylindrical surface and the inner side wall of the bottle mouth.

[0010] Preferably, the length of the nozzle flow channel is 11 mm, and the aperture at the bottom thereof is 0.35 - 1.5 mm.

[0011] Preferably, a nozzle end face is arranged at the top of the nozzle. The diameter of the nozzle end face is 3.2 - 3.5 mm.

[0012] Preferably, a nozzle flange is arranged in the middle of the nozzle. The nozzle flange is matched with the top of the bottle mouth.

[0013] Preferably, nozzle reinforcing ribs are arranged inside the nozzle.

[0014] Preferably, a sealing plug is arranged on the inner side of the top of the bottle cap. The sealing plug is matched with the nozzle drip orifice.

[0015] Preferably, anti-slip stripes are arranged on the outer surface of the bottle cap.

[0016] Preferably, an anti-theft ring is connected to the bottom of the bottle cap through a connecting bridge. The anti-theft ring is limited on the eye drop bottle body.

[0017] The utility model has obtained the following beneficial technical effects compared with the prior art:

[0018] A device for administering eye drops that achieves uniform droplets provided by the present utility model includes an eye drop bottle body, a nozzle, and a bottle cap. Its structure is similar to existing products, so it has little impact on the original production and filling equipment and is lower in cost compared to the eye drop administering device with a one-way valve. A nozzle flow channel is provided in the middle of the nozzle. The nozzle flow channel is in the shape of a flared structure that is larger at the top and smaller at the bottom. A nozzle liquid medicine buffer area is provided on the side of the nozzle flow channel. When dropping the liquid medicine, the liquid medicine slowly converges at the end face of the nozzle under the action of extrusion force through the buffer area and the flow channel to form droplets. The extrusion force is easier to control, avoiding large fluctuations in the amount of eye drops dropped into the eye and the problem of uneven droplets, and achieving the effect of uniform droplet dropping. After the liquid dropping is completed, under the action of natural gravity and the surface tension of the liquid medicine, the remaining eye drops in the flow channel will not flow back into the bottle body. Even if the remaining eye drops in the flow channel are contaminated, it will not affect the eye drops in the bottle body, thereby extending the service life of the eye drops. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Structural schematic diagram of a device for administering eye drops that achieves uniform droplets provided by the present utility model;

[0021] Figure 2 Cross-sectional view of a device for administering eye drops that achieves uniform droplets provided by the present utility model;

[0022] Figure 3 Structural schematic diagram of the nozzle in a device for administering eye drops that achieves uniform droplets provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] The purpose of the present utility model is to provide a device for administering eye drops that achieves uniform droplets to solve the problems existing in the prior art.

[0025] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Embodiment 1:

[0027] This embodiment provides an eye drop administration device for realizing uniform droplets, as Figures 1 - 3 shown, which includes an eye drop bottle body 1. A nozzle 4 is installed inside the bottle mouth of the eye drop bottle body 1. A bottle cap 3 is screwed onto the outside of the bottle mouth through an external thread 13 on the bottle mouth. A nozzle flow channel 6 is opened in the middle of the nozzle 4. The nozzle flow channel 6 is a flared structure with a larger upper part and a smaller lower part. Its top is provided with a nozzle drip orifice 11, and a nozzle liquid medicine buffer area 7 is provided on the side of the nozzle flow channel 6.

[0028] As an implementation manner, the lower part of the nozzle 4 is provided with an outer cylindrical surface 15 of the nozzle. The outer cylindrical surface 15 of the nozzle is in tight fit with the inner side wall of the bottle mouth, thereby realizing the quick connection between the two.

[0029] As an implementation manner, a nozzle snap ring 9 is provided between the outer cylindrical surface 15 of the nozzle and the inner side wall of the bottle mouth, thereby realizing the sealing effect.

[0030] As an implementation manner, the length of the nozzle flow channel 6 is 11 mm, and the aperture at its bottom is 0.35 - 1.5 mm. The diameter of the small hole is very small. Under the action of natural gravity and liquid surface tension, the eye drops in the flow channel will not flow back from the nozzle flow channel 6 into the eye drop bottle body, realizing physical isolation.

[0031] As an implementation manner, the top of the nozzle 4 is provided with a nozzle end face 12. The diameter of the nozzle end face 12 is 3.2 - 3.5 mm. According to Taylor's law, the liquid droplet volume control range is 0.05 ml ± 0.01 ml.

[0032] As an implementation manner, a nozzle flange 8 is provided in the middle of the nozzle 4. The nozzle flange 8 cooperates with the top of the bottle mouth, which can better realize automatic feeding and prevent foreign objects from entering the bottle from the bottle mouth end face, and is more beautiful at the same time.

[0033] As an implementation manner, nozzle reinforcing ribs 10 are provided inside the nozzle 4, which can reduce the deformation of the lower cylindrical part of the nozzle and increase the strength of this cylinder to ensure the fitting accuracy.

[0034] As an implementation manner, a sealing plug 5 is provided on the inner side of the top of the bottle cap 3. The sealing plug 5 cooperates with the nozzle drip orifice 11, thereby realizing the sealing of the drip orifice 11.

[0035] As an implementation manner, anti-slip stripes are provided on the outer surface of the bottle cap 3 to increase the friction and facilitate screwing the bottle cap.

[0036] As an implementation manner, the bottom of the bottle cap 3 is connected with an anti-theft ring 2 through a connecting bridge 14. The anti-theft ring 2 is limited on the eye drop bottle body 1. After the bottle cap 3 is opened, the anti-theft ring 2 will remain on the bottle, meeting the FDA requirements.

[0037] For an eye drop administration device for realizing uniform liquid drops provided by the present utility model, during use, the bottle body is inverted and tilted, and the nozzle drip orifice 11 is aligned with the eye. At this time, the liquid medicine first enters the nozzle buffer area 7. Since the aperture of the nozzle flow channel 6 is small and long, under the action of natural gravity and liquid surface tension, the liquid medicine will not enter the nozzle flow channel 6. By squeezing the bottle body, under the action of external extrusion pressure and capillary action, the liquid medicine slowly comes to the nozzle drip orifice 11 through the slender nozzle flow channel 6. Under the action of the surface tension of the liquid medicine, at the nozzle end face 12, it gradually converges into liquid drops, and its volume will not change greatly, thereby realizing uniform liquid drops.

[0038] The present utility model expounds the principle and implementation manner of the present utility model by applying specific examples. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An eye drop delivery device for achieving uniform droplets, comprising an eye drop bottle body, a nozzle installed in the bottle mouth of the eye drop bottle body, and a bottle cap screwed on the outside of the bottle mouth through an external thread of the bottle mouth, characterized in that: A nozzle flow channel is provided in the middle of the nozzle. The nozzle flow channel is a trumpet-shaped structure that is larger at the top and smaller at the bottom. A nozzle dripping port is provided at the top of the nozzle flow channel. A nozzle liquid buffer zone is provided at the side of the nozzle flow channel.

2. The eye drops delivery device for achieving uniform droplets according to claim 1, characterized in that: The lower part of the nozzle is provided with an outer cylindrical surface of the nozzle, and the outer cylindrical surface of the nozzle is tightly matched with the inner side wall of the bottle mouth.

3. The eye drops delivery device for achieving uniform droplets according to claim 2, characterized in that: A nozzle clamping ring is arranged between the outer cylindrical surface of the nozzle and the inner side wall of the bottle mouth.

4. The eye drops delivery device for achieving uniform droplets according to claim 1, characterized in that: The length of the nozzle flow channel is 11 mm, and the aperture of the bottom thereof is 0.35-1.5 mm.

5. The eye drops delivery device for achieving uniform droplets according to claim 1, characterized in that: A nozzle end surface is provided on the top of the nozzle, and the diameter of the nozzle end surface is 3.2-3.5 mm.

6. The eye drops delivery device for achieving uniform droplets according to claim 1, characterized in that: A nozzle flange is arranged in the middle of the nozzle, and the nozzle flange matches with the top of the bottle mouth.

7. The eye drops delivery device for achieving uniform droplets according to claim 1, characterized in that: A nozzle reinforcing rib is arranged inside the nozzle.

8. The eye drops delivery device for achieving uniform droplets according to claim 1, characterized in that: A sealing plug is provided on the inner side of the top of the bottle cap, and the sealing plug is matched with the dripping port of the nozzle.

9. The eye drops delivery device for achieving uniform droplets according to claim 1, characterized in that: The outer surface of the bottle cap is provided with anti-slip stripes.

10. The eye drops delivery device for achieving uniform droplets according to claim 1, characterized in that: The bottom of the bottle cap is connected with an anti-theft ring via a connecting bridge, and the anti-theft ring is located on the eye drops bottle body.

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