Residual-liquid-free gas-blocking bacteria-blocking eye drop administration device

Abstract

The invention discloses a residual-liquid-free air-blocking type bacterium-blocking eye drop administration device, and belongs to the technical field of eye drop administration, and the residual-liquid-free air-blocking type bacterium-blocking eye drop administration device comprises an administration bottle main body, a push cover which is inserted at the top end of the administration bottle main body in a sliding manner, and a bacterium-blocking air-blocking type liquid dropping head which is fixed at the bottom end of the administration bottle main body. According to the residual-liquid-free air-blocking type bacterium-blocking eye drop administration device, after medicine is dropped, the first spring downwards extrudes the elastic piston, so that the liquid outlet is sealed by the liquid dropping tip; the tip sealing design prevents external bacteria and gas from invading, ensures that the eye drops are kept in a sterile state in the storage process, avoids liquid medicine deterioration caused by microbial contamination or gas exchange, ensures the chemical stability and safety of the liquid medicine in the storage and use processes, and prolongs the shelf life of the eye drops.

Description

Technical Field

[0001] The present invention belongs to the technical field of ophthalmic drug delivery, and particularly relates to a residue-free air-blocking and bacteria-blocking ophthalmic drug delivery device. Background Art

[0002] Eye drops, as commonly used topical medicaments in ophthalmic treatment, are mostly in a clear liquid state. They have inhibitory and killing effects on various pathogenic bacteria in anti-bacterial treatment, especially for eye infections caused by, for example, Staphylococcus aureus and Staphylococcus epidermidis among Gram-positive bacteria, and Escherichia coli and Pseudomonas aeruginosa among Gram-negative bacteria, and have good therapeutic effects. In view of the fact that eye drops need to be opened multiple times during use, in order to maintain the stability of the liquid medicine in the bottle, reduce chemical reactions such as drug oxidation and hydrolysis caused by the entry of air, and ensure the consistency of the quality and efficacy of the liquid medicine within the validity period, the ophthalmic drug bottle, as its packaging device, must have the functions of blocking bacteria and air.

[0003] Currently, the product structures of ordinary ophthalmic drug bottles on the market are simple and their functions are single. For example, the ophthalmic drug bottle disclosed in the existing patent document (application number: CN202321877660.9) mainly consists of three components: an outer cap, an inner plug, and a bottle body. When the bottle body is squeezed, the pressure inside the bottle increases, and the eye drops flow out through the inner plug. After the dripping is finished and the bottle body is released, air enters the bottle through this channel, and the pressure inside the bottle returns to a state balanced with the outside. However, in actual use, external air carries pollutants such as microorganisms and dust into the bottle through the inner plug, posing a risk of contamination to the eye drops and easily causing eye infections; at the same time, environmental factors such as external humidity, temperature, and oxygen interact with the liquid medicine through this channel, affecting the chemical stability of the drug, resulting in a reduction in drug efficacy or even the generation of harmful substances; in addition, the existing design also has the problem of liquid medicine residue, that is, the liquid medicine cannot be fully utilized, directly leading to waste of drugs. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a residue-free air-blocking and bacteria-blocking ophthalmic drug delivery device, which aims to solve the technical problems that in the existing technology, external air carries pollutants such as microorganisms and dust into the bottle through the inner plug, posing a risk of contamination to the eye drops and easily causing eye infections; at the same time, environmental factors such as external humidity, temperature, and oxygen interact with the liquid medicine through this channel, affecting the chemical stability of the drug, resulting in a reduction in drug efficacy or even the generation of harmful substances.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the present invention provides a residue-free air-blocking and bacteria-blocking eye drop administration device. The residue-free air-blocking and bacteria-blocking eye drop administration device includes a medicine administration bottle body, a push cover slidably inserted at the top end of the medicine administration bottle body, and a bacteria-blocking and air-blocking drip head fixed at the bottom end of the medicine administration bottle body. It is characterized in that a dehumidifying bottle cap is tightly sleeved at the bottom end of the bacteria-blocking and air-blocking drip head, and a liquid outlet hole is opened at the bottom of the bacteria-blocking and air-blocking drip head. An integrated cover tightly inserted into the bacteria-blocking and air-blocking drip head is embedded and fixed at the bottom end of the medicine administration bottle body. An infusion channel is provided at the top end of the integrated cover, and an elastic piston for sealing the liquid outlet hole is provided below the integrated cover. A pressure application cavity is provided between the bottom end surface of the elastic piston and the bacteria-blocking and air-blocking drip head.

[0008] When using this technical solution, a bacteria-blocking and air-blocking drip head is installed at the bottom end of the medicine administration bottle body. When squeezing the drip head, the liquid medicine is transported to one side of the pressure application cavity along the extrusion liquid outlet groove, the liquid guide hole and the diversion groove. The liquid medicine squeezes the elastic piston to move upward along the annular diversion liquid outlet groove. During the upward movement of the elastic piston, the liquid outlet hole is opened, and the pressurized liquid medicine flows out from the liquid outlet hole. After dropping the medicine, the first spring squeezes the elastic piston downward to seal the liquid outlet hole at the drip tip. The tip sealing design blocks the intrusion of external bacteria and gas, ensuring that the eye drops remain sterile during storage, avoiding the deterioration of the liquid medicine caused by microbial contamination or gas exchange, ensuring the chemical stability and safety of the liquid medicine during storage and use, and extending the shelf life of the eye drops; by embedding and fixing a dehumidifying diaphragm in the dehumidifying bottle cap, after the dehumidifying bottle cap is sleeved on the bacteria-blocking and air-blocking drip head, the dehumidifying diaphragm absorbs the residual liquid in the liquid outlet hole and the drip tip, and dries the dehumidifying diaphragm that absorbs the residual liquid through the air permeable groove, reducing the influence of humidity on the stability of the liquid medicine; by slidably inserting a push cover at the top end of the medicine administration bottle body, when squeezing the push cover, pressure is applied to the second spring. The pressure generated by the second spring pushes the push rod and the rubber plug downward to squeeze the liquid medicine, and after dropping the liquid, the second spring pushes the push cover to reset upward. Since the amount of liquid medicine dropped is small, the second spring increases the stroke of the push cover for single-drop liquid, improving the user's feeling of dropping the liquid, and at the same time, the rubber plug that fits the inner wall of the integrated cover ensures that the liquid medicine can be fully utilized during use, thus significantly improving the utilization rate of the medicine and reducing waste.

[0009] Preferably, the infusion channel includes a diversion groove formed in a semi-circular structure on the outer wall of the integrated cover and communicating with one side of the pressure application cavity, and an extrusion liquid outlet groove formed in the bottom wall of the integrated cover.

[0010] Further, a liquid guide hole communicating with the liquid outlet groove is opened at the bottom end of the inner wall of the extrusion liquid outlet groove. An annular diversion liquid outlet groove communicating with the pressure application cavity is opened at the bottom end of the elastic piston, and a lifting positioning portion slidably inserted into the integrated cover is fixed at the top end of the elastic piston.

[0011] Further, a dropper tip is provided at the bottom end of the elastic piston. The bottom end of the dropper tip is fitted and inserted into the liquid outlet hole. A first spring is sleeved and installed on the protruding part at the top end of the elastic piston, and the first spring abuts against the top wall of the integrated cover.

[0012] Further, a sealing gasket is provided between the integrated cover and the bacteria- and air-blocking dropper head, and an interference connection is achieved between the integrated cover and the elastic piston to realize sealing.

[0013] Further, an anti-detachment ring is embedded and fixed at the top end of the medicine administration bottle body. The bottom protrusion of the push cover abuts against the anti-detachment ring, and a push rod is slidably sleeved at the bottom end of the push cover.

[0014] Further, a connection valve for supporting the push rod is fixed in the convex rod at the center position of the bottom end face of the push cover. The connection valve and the bottom end of the convex rod are both slidably inserted into the push rod.

[0015] Further, a second spring abutting against the push rod is sleeved and installed on the convex rod at the center position of the push cover. A rubber stopper matching the top cavity of the integrated cover is fixed at the bottom end of the push rod.

[0016] Further, an anti-theft ring is fixedly sleeved at the top end of the medicine administration bottle body. The bottom end of the anti-theft ring is fixed to the dehumidifying bottle cap. A tearing groove is provided between the anti-theft ring and the dehumidifying bottle cap, and a tearing plate is fixed on one side of the anti-theft ring.

[0017] Further, a tooth is fixed at the center position of the bottom wall of the dehumidifying bottle cap, and a dehumidifying filter membrane is embedded and fixed by the tooth in the dehumidifying bottle cap.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In the present invention, a bacteria- and air-blocking dropper head is installed at the bottom end of the medicine administration bottle body. When squeezing the dropper, the liquid medicine is transported to one side of the pressure chamber along the extrusion liquid outlet groove, the liquid guide hole and the diversion groove. The liquid medicine squeezes the elastic piston to move upward along the annular diversion liquid outlet groove. During the upward movement of the elastic piston, the liquid outlet hole is opened, and the pressurized liquid medicine flows out from the liquid outlet hole. After dropping the medicine, the first spring squeezes the elastic piston downward to seal the liquid outlet hole with the dropper tip. The tip sealing design blocks the intrusion of external bacteria and gas, ensures that the eye drops remain sterile during storage, avoids the deterioration of the liquid medicine caused by microbial contamination or gas exchange, ensures the chemical stability and safety of the liquid medicine during storage and use, and extends the shelf life of the eye drops;

[0021] By embedding and fixing a dehumidification diaphragm in the dehumidification bottle cap, after the dehumidification bottle cap is sleeved on the bacteria-proof and air-proof drip head, the dehumidification diaphragm absorbs the liquid remaining in the liquid outlet hole and the drip tip, and the dehumidification diaphragm that absorbs the residual liquid is air-dried through the air-permeable groove, reducing the influence of humidity on the stability of the liquid medicine;

[0022] By slidably inserting a push cover at the top of the medicine administration bottle body, when the push cover is squeezed, pressure is exerted on the second spring. The pressure generated by the second spring pushes the push rod and the rubber stopper downward to squeeze the liquid medicine, and after dripping, the second spring pushes the push cover to reset upward. Since the amount of liquid medicine dripped is small, the second spring increases the stroke of the push cover for a single drip, improving the user's dripping feel. At the same time, the rubber stopper that fits the inner wall of the integrated cap ensures that the liquid medicine can be fully utilized during use, thus significantly improving the utilization rate of the medicine and reducing waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the present invention;

[0025] Figure 2 It is a schematic cross-sectional structural diagram of the bacteria-proof and air-proof drip head in the present invention;

[0026] Figure 3 It is a schematic cross-sectional structural diagram of the push cover in the present invention;

[0027] Figure 4 It is a schematic cross-sectional structural diagram of the integrated cap in the present invention;

[0028] Figure 5 It is a schematic cross-sectional structural diagram of the dehumidification bottle cap and the elastic piston in the present invention;

[0029] Figure 6 It is a three-dimensional structural diagram of the dehumidification bottle cap in the present invention.

[0030] The reference numerals in the drawings are: 1, the main body of the medicine administration bottle; 2, the push cover; 3, the tear plate; 4, the dehumidifying bottle cap; 5, the air permeable groove; 6, the anti-theft ring; 7, the bacteria-proof and air-proof drip head; 8, the pressure application cavity; 9, the drip tip; 10, the liquid outlet hole; 11, the elastic piston; 12, the first spring; 13, the liquid guiding hole; 14, the extrusion liquid outlet groove; 15, the integrated cap; 16, the rubber stopper; 17, the push rod; 18, the connecting valve; 19, the anti-detachment ring; 20, the second spring; 21, the diversion groove; 22, the lifting positioning part; 23, the tear groove; 24, the dehumidifying filter membrane; 25, the annular diversion liquid outlet groove. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] This detailed implementation manner is a bacteria-proof and air-proof eye drop administration device without residual liquid, and its structural schematic diagram is as shown in Figure 1 、 Figure 2 and Figure 4 The bacteria-proof and air-proof eye drop administration device without residual liquid includes the main body 1 of the medicine administration bottle, a push cover 2 slidably inserted at the top end of the main body 1 of the medicine administration bottle, and a bacteria-proof and air-proof drip head 7 fixed at the bottom end of the main body 1 of the medicine administration bottle. It is characterized in that a dehumidifying bottle cap 4 is tightly sleeved at the bottom end of the bacteria-proof and air-proof drip head 7, and a liquid outlet hole 10 is opened at the bottom of the bacteria-proof and air-proof drip head 7. An integrated cap 15 tightly inserted into the bacteria-proof and air-proof drip head 7 is embedded and fixed at the bottom end of the main body 1 of the medicine administration bottle. An infusion channel is provided at the top end of the integrated cap 15, and an elastic piston 11 for sealing the liquid outlet hole 10 is provided below the integrated cap 15. A pressure application cavity 8 is provided between the bottom end surface of the elastic piston 11 and the bacteria-proof and air-proof drip head 7.

[0033] The infusion channel includes a diversion groove 21 formed on the outer wall of the integrated cap 15 in a semi-circular structure and connected to one side of the pressure chamber 8, and an extrusion liquid outlet groove 14 formed on the bottom wall of the integrated cap 15. A liquid guide hole 13 communicating with the liquid outlet groove is formed at the bottom end of the inner wall of the extrusion liquid outlet groove 14. A circular guide liquid outlet groove 25 communicating with the pressure chamber 8 is formed at the bottom end of the elastic piston 11. A drip tip 9 is provided at the bottom end of the elastic piston 11, and the bottom end of the drip tip 9 is fitted and inserted into the liquid outlet hole 10. A first spring 12 is sleeved on the protruding portion at the top end of the elastic piston 11, and a lifting positioning portion 22 slidably inserted into the integrated cap 15 is fixed at the top end of the elastic piston 11. The first spring 12 abuts against the top wall of the integrated cap 15. A sealing gasket is provided between the integrated cap 15 and the bacteria- and air-blocking drip head 7, and an interference fit is achieved between the integrated cap 15 and the elastic piston 11 to achieve sealing. When squeezing the drip, the liquid medicine is transported to one side of the pressure chamber 8 along the extrusion liquid outlet groove 14, the liquid guide hole 13 and the diversion groove 21. The liquid medicine squeezes the elastic piston 11 to move upward along the circular guide liquid outlet groove 25. During the upward movement of the elastic piston 11, the liquid outlet hole 10 is opened, and the pressurized liquid medicine flows out from the liquid outlet hole 10. After dripping, the first spring 12 squeezes the elastic piston 11 downward to seal the liquid outlet hole 10 with the drip tip 9. The tip sealing design blocks the intrusion of external bacteria and gas, ensures that the eye drops remain sterile during storage, avoids the deterioration of the liquid medicine caused by microbial contamination or gas exchange, ensures the chemical stability and safety of the liquid medicine during storage and use, and extends the shelf life of the eye drops.

[0034] As Figure 3 shown, an anti-detachment ring 19 is embedded and fixed at the top end of the medicine administration bottle body 1. The bottom protrusion of the push cover 2 abuts against the anti-detachment ring 19, and a push rod 17 is slidably sleeved at the bottom end of the push cover 2. A connection valve 18 for supporting the push rod 17 is fixed in the convex rod at the center position of the bottom end face of the push cover 2. The bottom ends of the connection valve 18 and the convex rod are both slidably inserted into the push rod 17. A second spring 20 abutting against the push rod 17 is sleeved on the convex rod at the center position of the push cover 2. The bottom end of the push rod 17 is fixed with a rubber plug 16 that fits the top cavity of the integrated cap 15. When squeezing the push cover 2, pressure is applied to the second spring 20. The pressure generated by the second spring 20 pushes the push rod 17 and the rubber plug 16 to move downward to squeeze the liquid medicine, and after dripping, the second spring 20 pushes the push cover 2 to reset upward. Since the amount of the dripping liquid medicine is small, the second spring 20 increases the stroke of the push cover 2 for single dripping, improves the user's dripping feel, and at the same time, the rubber plug 16 that fits the inner wall of the integrated cap 15 ensures that the liquid medicine can be fully utilized during use.

[0035] As Figure 5 and Figure 6As shown, a theft-proof ring 6 is fixedly sleeved on the top end of the medicine administration bottle body 1. The bottom end of the theft-proof ring 6 is fixed to the dehumidifying bottle cap 4. A tear groove 23 is provided between the theft-proof ring 6 and the dehumidifying bottle cap 4. A tear plate 3 is fixed to one side of the theft-proof ring 6. A card tooth is fixed at the center position of the bottom wall of the dehumidifying bottle cap 4. The dehumidifying filter membrane 24 is fixedly embedded in the dehumidifying bottle cap 4 through the card tooth. After the dehumidifying bottle cap 4 is sleeved on the bacteria- and air-blocking type drip head 7, the dehumidifying diaphragm absorbs the residual liquid in the liquid outlet hole 10 and the drip tip 9, and the dehumidifying diaphragm that absorbs the residual liquid is air-dried and dried through the air-permeable groove 5, reducing the influence of humidity on the stability of the liquid medicine. The theft-proof ring 6 fixes the dehumidifying bottle cap 4 on the medicine administration bottle body 1. The theft-proof ring 6 is pulled out from the dehumidifying bottle cap 4 through the tear plate 3 and the tear groove 23, so that the dehumidifying bottle cap 4 can be separated from the bottom end of the medicine administration bottle body 1.

[0036] Working principle: When using the device of this technical solution, when the push cover 2 is squeezed, pressure is applied to the second spring 20. The pressure generated by the second spring 20 pushes the push rod 17 and the rubber stopper 16 to move downward to squeeze the liquid medicine. When the drip is squeezed, the liquid medicine is transported to one side of the pressure application cavity 8 along the extrusion liquid outlet groove 14, the liquid guide hole 13 and the diversion groove 21. The liquid medicine squeezes the elastic piston 11 to move upward along the annular liquid outlet groove 25. During the upward movement of the elastic piston 11, the liquid outlet hole 10 is opened, and the pressurized liquid medicine flows out from the liquid outlet hole 10. After dropping the medicine, the first spring 12 squeezes the elastic piston 11 downward to seal the liquid outlet hole 10 with the drip tip 9. The tip sealing design blocks the intrusion of external bacteria and gas, ensuring that the eye drops remain sterile during storage and avoiding the deterioration of the liquid medicine caused by microbial contamination or gas exchange. After the dehumidifying bottle cap 4 is sleeved on the bacteria- and air-blocking type drip head 7, the dehumidifying diaphragm absorbs the residual liquid in the liquid outlet hole 10 and the drip tip 9, and the dehumidifying diaphragm that absorbs the residual liquid is air-dried and dried through the air-permeable groove 5, reducing the influence of humidity on the stability of the liquid medicine.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A residue-free and air-blocking type antibacterial eye drop administration device, the residue-free and air-blocking type antibacterial eye drop administration device comprising an administration bottle body (1), a push cover (2) slidably inserted at the top end of the administration bottle body (1), and an antibacterial and air-blocking type drip head (7) fixed at the bottom end of the administration bottle body (1), characterized in that, The bottom end of the bacteria- and air-blocking drip head (7) is tightly sleeved with a dehumidifying bottle cap (4), and a liquid outlet hole (10) is formed at the bottom of the bacteria- and air-blocking drip head (7). The bottom end of the medicine administration bottle body (1) is fixedly embedded with an integrated cap (15) that is tightly inserted into the bacteria- and air-blocking drip head (7). The top end of the integrated cap (15) is provided with an infusion channel, and an elastic piston (11) for sealing the liquid outlet hole (10) is arranged below the integrated cap (15). A pressure chamber (8) is provided between the bottom end surface of the elastic piston (11) and the bacteria- and air-blocking drip head (7).

2. The air-blocking and bacteria-blocking eye drop administration device without residual liquid according to claim 1, characterized in that, The infusion channel includes a diversion groove (21) formed in the outer wall of the integrated cap (15) in a semi-circular structure and communicating with one side of the pressure chamber (8), and an extrusion liquid outlet groove (14) formed in the bottom wall of the integrated cap (15).

3. The air-blocking bacteriostatic eye drop administration device without residual liquid according to claim 2, characterized in that A liquid guide hole (13) communicating with the liquid outlet groove is formed at the bottom end of the inner wall of the extrusion liquid outlet groove (14). A circular guide liquid outlet groove (25) communicating with the pressure chamber (8) is formed at the bottom end of the elastic piston (11), and a lifting positioning portion (22) that is slidably inserted into the integrated cap (15) is fixed to the top end of the elastic piston (11).

4. The air-blocking and bacteria-blocking eye drop administration device without residual liquid according to claim 3, wherein, A drip tip (9) is arranged at the bottom end of the elastic piston (11), and the bottom end of the drip tip (9) is fittingly inserted into the liquid outlet hole (10). A first spring (12) is sleeved and installed on the protruding portion at the top end of the elastic piston (11), and the first spring (12) abuts against the top wall of the integrated cap (15).

5. The air-blocking and bacteria-blocking eye drop administration device without residual liquid according to claim 4, wherein, A sealing gasket is arranged between the integrated cap (15) and the bacteria- and air-blocking drip head (7), and an interference fit is achieved between the integrated cap (15) and the elastic piston (11) to realize sealing.

6. The air-blocking and bacteria-blocking eye drop administration device without residual liquid according to claim 1, wherein An anti-detachment ring (19) is fixedly embedded at the top end of the medicine administration bottle body (1). The bottom protrusion of the push cover (2) abuts against the anti-detachment ring (19), and a push rod (17) is slidably sleeved at the bottom end of the push cover (2).

7. The air-blocking and bacteria-blocking eye drop administration device without residual liquid according to claim 6, characterized in that, A connecting valve (18) for supporting the push rod (17) is fixed in the convex rod at the center position of the bottom end surface of the push cover (2). The bottom ends of the connecting valve (18) and the convex rod are both slidably inserted into the push rod (17).

8. The air-blocking and bacteria-blocking eye drop administration device without residual liquid according to claim 7, characterized in that, A second spring (20) abutting against the push rod (17) is sleeved and installed on the convex rod at the center position of the push cover (2). The bottom end of the push rod (17) is fixed with a rubber plug (16) that fits the top cavity of the integrated cap (15).

9. The air-blocking and bacteria-blocking eye drop administration device without residual liquid according to claim 1, wherein An anti-theft ring (6) is fixedly sleeved at the top end of the medicine administration bottle body (1). The bottom end of the anti-theft ring (6) is fixed to the dehumidifying bottle cap (4), a tearing groove (23) is arranged between the anti-theft ring (6) and the dehumidifying bottle cap (4), and a tearing plate (3) is fixed to one side of the anti-theft ring (6).

10. The gas-blocking bacteriostatic eye drop administration device without residual liquid according to claim 9, wherein A tooth is fixed at the center position of the bottom wall of the dehumidifying bottle cap (4), and a dehumidifying filter membrane (24) is fixedly embedded in the dehumidifying bottle cap (4) through the tooth.

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