A multi-dose piston sealed eye drop bottle

Abstract

The application discloses a multi-dose piston-sealed eye drop bottle, which comprises a bottle body containing eye drops; the bottle body is connected with a bottle mouth seat; the bottle mouth seat is slidably provided with a resettable piston column; the piston column is cooperatively provided with a drop seat; one end of the drop seat is provided with a drop nozzle; the piston column seals the drop nozzle; a hydraulic space is formed between the drop seat and the piston column; the piston column is driven to open and drive the drop nozzle to drop by volume change of the hydraulic space; and the multi-dose piston-sealed eye drop bottle has the beneficial effect of good sealing effect of dropping eye drops.

Description

TECHNICAL FIELD

[0001] The present application relates to a multi-dose piston sealed eye drop bottle. BACKGROUND

[0002] The existing eye drop bottle, after the patient presses the eye drop bottle to use eye medicine, the external air is easy to directly enter the medicine bottle, and it is difficult to seal the medicine bottle when producing the eye drop bottle and filling the eye medicine, and the eye medicine must be added with preservatives. The addition of preservatives may have certain damage to the eyes of the patient, and if the preservatives are not added, the external air and bacteria are easy to enter the eye drop bottle, so that the eye medicine cannot reach the sanitary level. Therefore, the present application provides a multi-dose piston sealed eye drop bottle, which can prevent the external air and bacteria from entering the eye drop bottle during dripping, so that the eye medicine does not need to be preserved. SUMMARY

[0003] The purpose of the present application is to provide a multi-dose piston sealed eye drop bottle. The multi-dose piston sealed eye drop bottle has good sealing effect of dripping eye medicine.

[0004] The purpose of the present application is achieved by the following technical scheme:

[0005] A multi-dose piston sealed eye drop bottle, comprising a bottle body containing eye medicine; the bottle body is connected with a nozzle seat; the nozzle seat is slidably provided with a resettable piston column; the piston column is cooperatively provided with a dripping seat; one end of the dripping seat is provided with a dripping nozzle; the piston column seals the dripping nozzle; a hydraulic space is formed between the dripping seat and the piston column; the piston column is driven to open and drive the dripping nozzle to drip by the volume change of the hydraulic space.

[0006] The present application is further provided that: the middle part of the nozzle seat is provided with a fluid channel connected with the bottle body, and the fluid communicates with the piston column.

[0007] The present application is further provided that: the middle part of the piston column is provided with a piston channel communicating with the fluid channel, and the end of the piston channel communicates with the hydraulic space.

[0008] The present application is further provided that: one end of the bottle body is provided with a bottle cone, the nozzle seat and the bottle cone are interference-fitted, and the nozzle seat and the dripping seat are interference-fitted.

[0009] The present application is further provided that: the middle part of the dripping seat is provided with a dripping groove for the sliding of the piston column.

[0010] The present application is further provided that: a plurality of annular grooves are arranged on the piston column, and a piston ring is arranged in the annular groove for dynamic sealing.

[0011] The present application is further provided that: the bottle cone is externally threadedly connected with a bottle cap, and the bottle cap is provided with a plunger for sealing the dripping nozzle.

[0012] In summary, the present invention has the following beneficial objectives: this multi-dose piston-sealed eye drop bottle has a better drip sealing effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0014] Figure 2 This is a schematic diagram of the internal structure of an embodiment;

[0015] Figure 3 for Figure 2 A schematic diagram showing the connection between the bottle nipple holder and the drip holder;

[0016] Figure 4 This is an exploded view of an embodiment.

[0017] Reference numerals: 1. Bottle body; 2. Bottle cone; 3. Ear stop; 4. Bottle mouth seat; 5. Fluid channel; 6. Drip seat; 7. Drip groove; 8. Drip tip; 9. Piston column; 10. Annular groove; 11. Piston channel; 12. Flow channel; 13. Hydraulic space; 14. Sealing plug; 15. Bottle cap; 16. Plunger; 17. Medical filter material; 18. Waterproof flexible sealing ring; 19. Spring; 20. Piston ring. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, a multi-dose piston-sealed eye drop bottle includes a bottle body 1 containing preservative-free eye drops. A bottle cone 2 is located at the top of the bottle body 1. Ear stops 3 are located on both sides of the bottle cone 2. The ear stops 3 are used to position the eye drop bottle within the drip device disclosed in Chinese Patent Application No. 202120028198.X, entitled "An Eye Drop Drip Device and Its Application: An Eye Drop Lever Drip Aid," for drip administration.

[0020] The core design of this application is:

[0021] like Figure 2 , Figure 3 , Figure 4 As shown, a nozzle seat 4 is provided inside the bottle cone. The connection between the nozzle seat 4 and the bottle cone can be by interference fit, fixed connection, or other methods, so that there is no gap between the bottle cone and the nozzle seat 4, and the eye drops cannot enter between the bottle cone and the nozzle seat 4.

[0022] A fluid channel 5, which communicates with the bottle body 1, is provided in the middle of the bottle nozzle seat 4. The fluid channel 5 is used for the passage of eye drops in the bottle body 1.

[0023] The bottle cone is clamped with the drop seat 6 on one side of the bottle nozzle seat 4 by interference fit. The drop seat 6 is stably limited between the top side of the bottle cone, the inner side of the bottle cone and the bottle nozzle seat 4, further stably fixing the bottle nozzle seat 4, preventing the bottle nozzle seat 4 from loosening to cause the eye drops to leak. There is no gap between the above-mentioned drop seat 6 and the inner side of the bottle cone, preventing the eye drops from leaking.

[0024] Correspondingly, a drop groove 7 is arranged between the bottle nozzle seat 4 and the drop seat 6. The top of the drop seat 6 is provided with a drop nozzle 8. The drop nozzle 8 is communicated with the drop groove 7, so that the eye drops can enter the drop groove 7 and then enter the drop nozzle 8 to drop the eye drops.

[0025] The piston column 9 is slidably connected in the drop groove 7. The piston column 9 is sealed in the drop groove 7. Specifically, at least two annular grooves 10 are arranged outside the piston column 9. The piston ring 20 can be installed in the annular groove 10 to realize dynamic sealing. When the piston column 9 slides in the drop groove 7, the eye drops cannot pass through the gap between the piston column 9 and the drop groove 7.

[0026] The piston column 9 is provided with a piston channel 11. The piston channel 11 is used to pass the eye drops flowing from the fluid channel 5. The piston column 9 and the bottle nozzle seat 4 are interference fitted with a water-proof flexible sealing ring 18. The water-proof flexible sealing ring 18 is made of sanitary grade foaming material, specifically latex or silicone material, so that the piston column 9 can maintain dynamic sealing when it slides in the drop groove 7, and the eye drops cannot pass through the space between the piston column 9 and the bottle nozzle seat 4. In addition, a spring 19 is arranged between the piston column 9 and the bottle nozzle seat 4 to reset the piston column 9 to close the drop nozzle 8 under the condition of no pressure.

[0027] The above-mentioned piston ring 20 is a component used inside a diesel engine.

[0028] Further, the piston channel 11 is communicated with at least one flow channel 12 at the end. The flow channel 12 is communicated with a hydraulic space 13 at the end. The hydraulic space 13 is formed by the space between the piston column 9 and the drop seat 6, and the volume changes with the movement of the piston column 9.

[0029] The piston column 9 is sleeved with a sealing plug 14 at the top. In the state of no pressure, the sealing plug 14 closes the drop nozzle 8. The above-mentioned piston column 9 is made of sanitary grade hard material (such as sanitary grade plastic or metal), and the sealing plug 14 is made of sanitary grade rubber or other elastic material, which facilitates the sliding of the piston column 9 in the drop groove 7, and the sealing plug 14 can better close the drop nozzle 8.

[0030] Optimally, the drop seat 6 is provided with a bottle cap 15. The bottle cap 15 is threadedly connected between the drop seat 6, and the bottle cap 15 is provided with a plunger 16 corresponding to the drop nozzle 8. The plunger 16 is used to close the drop nozzle 8 to prevent external bacteria from entering the drop nozzle 8 to contaminate the eye drops.

[0031] Further, the bottom of the nozzle seat 4 is provided with medical filter material 17, which filters the eye drops. This is prior art and will not be described in detail.

[0032] Overall working process:

[0033] 1. In use, the bottle cap 15 is rotated to open, so that the drop nozzle 8 is exposed;

[0034] 2. In the initial state, the sealing plug 14 is still in the closed state, thereby preventing the eye drops from leaking;

[0035] 3. The eye drops in the bottle body 1 pass through the fluid channel 5 into the piston channel 11, and finally enter the hydraulic space 13 along the flow channel 12. At this time, the buoyancy in the hydraulic space 13 cannot overcome the elastic force of the spring 19 and the friction force of the piston ring 20, and the piston column 9 remains in a static state;

[0036] 4. Press the bottle body 1, so that the bottle body 1 is under pressure, and the pressure of the part of the eye drops entering the hydraulic space 13 increases, thereby extruding the piston column 9, so that the piston column 9 moves to the position of the nozzle seat 4. The piston column 9 moves and drives the sealing plug 14 to move, and the drop nozzle 8 discharges;

[0037] 5. After the drop is completed, the piston column 9 is reset under the action of the spring elastic force, so that the sealing plug 14 reseals the drop nozzle 8, preventing the eye drop bottle from leaking.

[0038] The specific embodiment is only an explanation of the present application, which is not a limitation of the present application. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A multi-dose piston sealed eye drop bottle, characterized by: The utility model relates to a bottle body (1) of eye drops, bottle body (1) is connected with bottle mouth seat (4), bottle mouth seat (4) is provided with the piston post (9) of resettable slip, piston post (9) is provided with the drip seat (6) of cooperation, drip seat (6) one end is provided with the drip mouth (8), piston post (9) closes drip mouth (8), drip seat (6) and piston post (9) between form hydraulic space (13), drive piston post (9) to open drive drip mouth (8) drip through the volume change of hydraulic space (13), the middle part of bottle mouth seat (4) is provided with the fluid channel (5) with bottle body (1) connection, the fluid passes through piston post (9) intercommunication, the middle part of piston post (9) is provided with the piston channel (11) with fluid channel (5) intercommunication, the end of piston channel (11) with hydraulic space (13) intercommunication, one end of bottle body (1) is provided with bottle cone, and bottle mouth seat (4) and bottle cone between interference joint, and bottle mouth seat (4) and drip seat (6) between cooperation interference joint, the middle part of drip seat (6) is provided with the drip groove (7) of the piston post (9) slip, the outer thread of bottle cone is connected with bottle cap (15), and bottle cap (15) is provided with plunger (16) for closing drip mouth (8) on it.

2. A multi-dose piston sealed eye-drop bottle according to claim 1, characterized in that: The piston post (9) is provided with a plurality of annular grooves (10), and the annular grooves (10) are provided with piston rings (20) for dynamic sealing.

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