Bacteria-blocking eyedrop bottle
By designing a physical filtration system for antibacterial eye drop bottles, utilizing a polytetrafluoroethylene membrane filter screen smaller than 2 microns and an independent cavity air channel, the problem of bacterial contamination during the use of eye drop bottles is solved, achieving a safe and reliable antibacterial effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-27
AI Technical Summary
Existing eye drop bottles are easily contaminated with bacteria during use, leading to a risk of eye infections, and existing preservatives may harm the eyes.
An antibacterial eye drop bottle was designed that uses a physical method to prevent airborne bacteria from entering through a filter. The filter is a polytetrafluoroethylene membrane with a mesh diameter of less than 2 micrometers, combined with an independent cavity and air channel to filter the air and prevent bacteria from entering the bottle.
It effectively prevents bacteria from contaminating the eye drops, avoids eye damage caused by preservatives, and ensures safe and reliable use.
Smart Images
Figure CN224039624U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical packaging bottle, especially a bacteria-resistant eye drop bottle. BACKGROUND
[0002] The common eye drop bottle on the market is squeezed to extrude the eye drop, which is dripped into the eyes. When the external force disappears, the negative pressure is generated in the bottle, so that the air outside is sucked into the bottle, and the bacteria and other microorganisms also enter the bottle, polluting the eye drops. The eye drops continue to be used, which has the risk of eye infection (such as causing conjunctivitis, keratitis, etc., and even causing visual impairment in severe cases). The existing bacteria-resistant method is to add a preservative to the eye drops, but the preservative can also cause damage to the eyes. SUMMARY
[0003] The utility model aims at providing a bacteria-resistant eye drop bottle which realizes bacteria resistance by a physical bacteria-resistant method and avoids damage to the glasses.
[0004] The utility model is implemented as follows:
[0005] A bacteria-resistant eye drop bottle, comprising a liquid storage container, a liquid outlet valve, a dropper and a gland, the liquid outlet valve is arranged at one end of the liquid storage container and comprises a fixed seat and a valve rod located on the top plate of the fixed seat, a first liquid outlet is arranged on the top plate; the gland is connected to one end of the liquid storage container and covers the liquid outlet valve; the dropper comprises a dropper part and an elastic sheet located at the lower end of the dropper part and capable of being elastically deformed, the dropper part covers the valve rod, and the upper end of the dropper part extends out of the gland, the elastic sheet is located between the gland and the top plate, and a second liquid outlet is arranged at the top of the dropper part, a liquid outlet channel is formed between the valve rod and the dropper part and between the elastic sheet and the top plate, and the top of the valve rod blocks the second liquid outlet in a normal pressure state.
[0006] In the above-mentioned bacteria-resistant eye drop bottle, the side wall of the fixed seat is concave to form an independent cavity, a first air inlet hole is arranged on the gland and communicates with the independent cavity, a convex column is arranged in the independent cavity, an air passage is arranged on the convex column and communicates with the first air inlet hole and the inner cavity of the liquid storage container, and a filter screen is arranged at the air inlet end of the air passage.
[0007] In the above-mentioned bacteria-resistant eye drop bottle, the filter screen is fixed by a fixed ring, and a second air inlet hole is arranged on the fixed ring and communicates with the air passage.
[0008] In the above-mentioned bacteria-resistant eye drop bottle, the fixed ring is a cylindrical structure with one end open, an annular protrusion is arranged on the inner cylinder wall of the cylindrical structure, and the fixed ring is clamped on the outer surface of the convex column through the annular protrusion.
[0009] In the above-mentioned bacteria-resistant eye drop bottle, the first air inlet hole, the second air inlet hole and the air passage are coaxial.
[0010] In the above-mentioned bacteria-resistant eye drop bottle, the filter screen is a polytetrafluoroethylene film with a mesh diameter less than 2 microns.
[0011] In the above-mentioned bacteria-resistant eye drop bottle, the valve rod comprises a cylinder, and a plurality of axial protrusions are distributed on the outer sidewall of the cylinder in a circumferential direction.
[0012] In the above-mentioned bacteria-resistant eye drop bottle, the outer edge of the elastic sheet extends axially downward to form an annular protrusion, and an annular step is arranged on the outer ring of the top plate, the annular protrusion is located on the annular step and is fixed by a gland.
[0013] Compared with the prior art, the utility model has the advantages of:
[0014] The utility model discloses a physical way to realize bacteria resistance, which can avoid the damage of eye drops or preservatives in eye drops to the user's eyes, and is safe and reliable. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the three-dimensional schematic view of the utility model;
[0016] Figure 2 It is the plan view of the utility model;
[0017] Figure 3 It is Figure 2 the A-A sectional view of
[0018] Figure 4 It is the schematic view of the liquid outlet valve of the utility model;
[0019] Figure 5 It is the schematic view of the drop nozzle of the utility model.
[0020] In the drawing: 1, liquid storage container; 2, liquid outlet valve; 3, drop nozzle; 4, gland; 5, fixed seat; 6, top plate; 7, valve rod; 8, first liquid outlet; 9, drop nozzle part; 10, elastic sheet; 11, second liquid outlet; 12, liquid outlet passage; 13, independent cavity; 14, first air inlet hole; 15, protruding column; 16, air passage; 17, filter screen; 18, fixed ring; 19, second air inlet hole; 20, protrusion; 21, annular protrusion; 22, annular step. DETAILED DESCRIPTION
[0021] The utility model will be further described below with specific embodiments:
[0022] For example, Figures 1-5As shown, the utility model provides a kind of bacteria-resistant eyedrops bottle, the bacteria-resistant eyedrops bottle includes liquid storage container 1, liquid outlet valve 2, drop nozzle 3 and gland 4, liquid outlet valve 2 is arranged at one end of liquid storage container 1, including fixed base 5 and the valve stem 7 on the top plate 6 of fixed base 5, the lower end of fixed base 5 is connected with one end of liquid storage container 1, first liquid outlet 8 is provided on the top plate 6;The gland 4 is covered on the liquid outlet valve 2, and the lower end of gland 4 is connected with one end of liquid storage container 1;The drop nozzle 3 includes drop nozzle part 9 and the elastic sheet 10 of elastic deformation located at the lower end of drop nozzle part 9, the drop nozzle part 9 covers valve stem 7 and the upper end of drop nozzle part 9 is stretched outside gland 4, the elastic sheet 10 is located between gland 4 and top plate 6, the top of drop nozzle part 9 is provided with second liquid outlet 11, and the liquid outlet passage 12 is formed between valve stem 7 and drop nozzle part 9 and elastic sheet 10 and top plate 6, under normal pressure state, the top of valve stem 7 blocks second liquid outlet 11 to break the outside and liquid outlet passage 12.It needs to be explained that the normal pressure state here refers to the case that no external force acts on liquid storage container 1.
[0023] In addition, the utility model forms a independent cavity 13 in the side wall of fixed base 5, first air inlet hole 14 is provided on the gland 4 and is communicated with independent cavity 13, convex column 15 is arranged in independent cavity 13, air passage 16 is provided on convex column 15 and is communicated with first air inlet hole 14 and liquid outlet container inner cavity, filter screen 17 is arranged in the air inlet end of air passage 16.
[0024] When eyedrops, liquid storage container 1 is extruded, due to the change of pressure, the eyedrops in liquid storage container 1 pass through first liquid outlet 8 and enter between elastic sheet 10 and top plate 6 and extrude elastic sheet 10 to make it produce deformation, until the drop nozzle part 9 on the top of valve stem 7 is opened, at this time, second liquid outlet 11, liquid outlet passage 12 and first liquid outlet 8 are communicated with each other, and the eyedrops are dropped from second liquid outlet 11;
[0025] When the external force disappears and liquid storage container 1 resets, the outside air enters liquid storage container 1 through first air inlet hole 14, filter screen 17 and air passage 16, to ensure that liquid storage container 1 resets.Due to the arrangement of filter screen 17, bacteria and other microorganisms in the outside air can be intercepted and prevented, to prevent the bacteria in the air from polluting the eyedrops in liquid storage container 1.When the pressure in liquid storage container 1 recovers, at this time, the deformation of drop nozzle 3 also disappears, and liquid outlet passage 12 is blocked on second liquid outlet 11 through valve stem 7 to achieve blocking, and the liquid exposed in the air is blocked outside liquid outlet passage 12, to prevent the contaminated eyedrops from returning to the inside of liquid storage container 1 to pollute the eyedrops, to achieve the effect of bacteria resistance.
[0026] From the above, the utility model realizes bacteria resistance by physical method, which can avoid the situation that the user's eyes are damaged due to eyedrop pollution or preservatives in eyedrops, and is safe and reliable.
[0027] It needs explanation that the filter screen 17 is fixed by the fixing ring 18, and the second air inlet hole 19 is arranged on the fixing ring 18, and the second air inlet hole 19 is communicated with the air channel 16.
[0028] In the embodiment, the first air inlet hole 14, the second air inlet hole 19 and the air channel 16 are coaxially arranged.
[0029] In addition, the fixing ring 18 is a cylindrical structure with one end opening, and the annular protrusion is arranged on the inner cylinder wall of the cylindrical structure, and the fixing ring 18 is clamped on the outer surface of the convex column 15 through the annular protrusion. When installing, only the convex column 15 needs to be clamped into the fixing ring 18, and the annular protrusion can make the fixing ring 18 not easy to separate from the convex column 15, and the connection between the two is quick and convenient.
[0030] Further, the filter screen 17 is a polytetrafluoroethylene diaphragm with a mesh diameter less than 2 microns, and the physical interception principle is adopted.
[0031] In addition, the valve rod 7 comprises a cylinder, and a plurality of convex strips 20 arranged in the axial direction are distributed on the outer side wall of the cylinder in the circumferential direction.
[0032] In order to facilitate the fixing of the drop nozzle 3, the outer edge of the elastic sheet 10 extends axially downwardly and has an annular protruding edge 21, and an annular step 22 is arranged on the outer ring of the top plate 6, and the annular protruding edge 21 is located on the annular step 22 and is limited and fixed by the gland 4.
[0033] The above embodiment is only one of the preferred embodiments of the utility model, and does not limit the implementation range of the utility model, so that: all equivalent changes made according to the shape, structure and principle of the utility model should be covered in the protection range of the utility model.
Claims
1. A bacteria-resistant eye drop bottle, characterized by: The application relates to a liquid outlet valve, which comprises a liquid storage container (1), a liquid outlet valve (2), a liquid drop nozzle (3) and a cover (4). The liquid outlet valve (2) is arranged at one end of the liquid storage container (1) and comprises a fixed seat (5) and a valve rod (7) arranged on a top plate (6) of the fixed seat (5). The top plate (6) is provided with a first liquid outlet. The cover (4) is connected to one end of the liquid storage container and covers the liquid outlet valve (2). The liquid drop nozzle (3) comprises a nozzle part (9) and an elastic sheet (10) arranged at the lower end of the nozzle part (9) and capable of being elastically deformed. The nozzle part (9) covers the valve rod (7) and the upper end of the nozzle part (9) extends out of the cover (4). The elastic sheet (10) is arranged between the cover (4) and the top plate (6). The top part of the nozzle part (9) is provided with a second liquid outlet (11). A liquid outlet channel (12) is formed between the valve rod (7) and the nozzle part (9) and between the elastic sheet (10) and the top plate (6). Under normal pressure, the top part of the valve rod (7) blocks the second liquid outlet (11).
2. The bacteria-proof eye drop bottle according to claim 1, wherein: The side wall of the fixed seat (5) is concave to form an independent cavity (13). The cover (4) is provided with a first air inlet hole (14) which communicates with the independent cavity (13). A convex column (15) is arranged in the independent cavity (13). The convex column (15) is provided with an air channel (16) which communicates with the first air inlet hole (14) and the inner cavity of the liquid storage container. A filter screen (17) is arranged at the air inlet end of the air channel (16).
3. A germ resistant eye drop bottle as claimed in claim 2, wherein: The filter screen (17) is fixed by a fixed ring (18) and is provided with a second air inlet hole (19) on the fixed ring (18). The second air inlet hole (19) communicates with the air channel (16).
4. The bacteria-proof eye drop bottle according to claim 3, wherein: The fixed ring (18) is a cylindrical structure with one end being open. An annular protrusion is arranged on the inner cylinder wall of the cylindrical structure. The fixed ring (18) is clamped on the outer surface of the convex column (15) through the annular protrusion.
5. The bacteria-proof eye drop bottle according to claim 3, wherein: The first air inlet hole (14), the second air inlet hole (19) and the air channel (16) are coaxially arranged.
6. A bacteria-resistant eye drop bottle according to any one of claims 2-5, wherein: The filter screen (17) is a polytetrafluoroethylene film with a mesh diameter less than 2 microns.
7. A bacteria-resistant eye drop bottle according to any one of claims 1-5, characterized in that: The valve rod (7) comprises a cylinder. A plurality of axially arranged protrusions (20) are distributed on the outer side wall of the cylinder.
8. A bacteria-resistant eye drop bottle according to any one of claims 1-5, characterized in that: The outer edge of the elastic sheet (10) extends axially downward to form an annular protrusion (21). An annular step (22) is arranged on the outer ring of the top plate (6). The annular protrusion (21) is arranged on the annular step (22) and is fixed by the cover (4).