CN115531082A - Residual liquid removing structure in eyedrop dropping device and residual liquid removing method thereof - Google Patents
Residual liquid removing structure in eyedrop dropping device and residual liquid removing method thereof Download PDFInfo
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- CN115531082A CN115531082A CN202211127539.4A CN202211127539A CN115531082A CN 115531082 A CN115531082 A CN 115531082A CN 202211127539 A CN202211127539 A CN 202211127539A CN 115531082 A CN115531082 A CN 115531082A
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- liquid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1475—Inlet or outlet ports
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- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Hematology (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention discloses a residual liquid removing structure in an eyedrop dropping device and a residual liquid removing method thereof, wherein the residual liquid removing structure comprises the following steps: bottle, drip shell, drip column, annular are sealed to seal up, and the drip shell links to each other with the bottle, is provided with the runner in the drip shell, is provided with the liquid outlet at the top of runner, is provided with annular sealing pad in the department of linking to each other of liquid outlet and runner, is provided with the drip column in the runner of drip shell, the drip column includes: t type section and toper section, toper section pass the annular sealing pad and reach the liquid outlet backward to overhanging out the drip shell, the sealed inner circle of annular sealing pad and the sealed laminating of lateral wall of toper section, the equipartition has a plurality of guiding gutters on the drip column. The invention has the advantages that: after the dropping liquid is finished, the liquid medicine water film attached to the conical section of the dropping liquid column and the liquid medicine hung at the end part of the conical section are pushed away from the conical section by loosening the bottle body, so that the liquid medicine water film is dropped into eyes of a user, the waste is avoided, the conical section exposed in the air can be kept dry, and bacteria are not easy to breed.
Description
Technical Field
The invention relates to an eye drop dropping device, in particular to a residual liquid removing structure in the eye drop dropping device and a residual liquid removing method thereof.
Background
Can protect eyes with eyedrop in daily life often, in order to can accurate eyedrop liquid medicine, generally all can use eyedrop dropping device, and eyedrop dropping device on the present market is after finishing dripping eyedrop, have last eyedrop and hang the tip at the drip post, and still can be attached to one deck eyedrop water film on the drip post that exposes outside, all throw away remaining eyedrop liquid drop through rocking eyedrop dropping device at present, so not only can cause the waste of eyedrop, and can't clear away the eyedrop water film on the drip post when rocking, this layer water film contacts with the air for a long time and breeds bacterial contamination drip post easily, influence the use.
Disclosure of Invention
The invention aims to provide a residual liquid removing structure in an eye drop dropping device and a residual liquid removing method thereof, which can effectively remove eye drops and eye drop water films remained on a dropping column so as to prevent the dropping column from being polluted by bacteria after the eye drops are contacted with air for a long time.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a residual liquid removing structure in an eye drop dropper and a residual liquid removing method thereof comprise the following steps: bottle, drip shell, drip column, annular are sealed fills up, and the drip shell links to each other with the bottle, and the central point of putting at the drip shell department of locating is provided with the runner that runs through the drip shell, is provided with the liquid outlet that the bore is greater than the runner diameter at the top of runner, is provided with annular sealing pad in the department of linking to each other of liquid outlet and runner, is provided with the drip column in the runner of drip shell, the drip column includes: the liquid dripping column is provided with a T-shaped section connected with the flow channel and a conical section connected with the top of the T-shaped section, the conical section extends outwards after penetrating through the annular sealing gasket and the liquid outlet and then extends out of the liquid dripping shell, the inner ring of the annular sealing gasket is in sealing fit with the outer side wall of the conical section, a plurality of flow guide grooves are uniformly distributed on the liquid dripping column along the circumference, the bottom openings of the flow guide grooves are positioned on the bottom wall of the T-shaped section, and the top openings of the flow guide grooves are positioned on the conical section below the annular sealing gasket;
the residual liquid removing method of the residual liquid removing structure in the eye drop dropping device comprises the following steps: the liquid dropping device is vertically inverted, the bottle body is extruded, liquid medicine in the bottle body enters a flow channel and flows downwards along a flow guide groove on a liquid dropping column, at the moment, the liquid medicine is collected on an annular sealing gasket and pushes the annular sealing gasket downwards, the annular sealing gasket can move downwards after receiving double top thrust of air and the liquid medicine in the bottle body and does not form sealing with a conical section of the liquid dropping column any more, the liquid medicine flows downwards along the conical section and is converged to the end part of the conical section to form liquid drops to drip downwards, in the process, the liquid medicine is extruded out of air in the liquid outlet when passing through the liquid outlet, the liquid outlet is in a low-pressure state, then the bottle body is loosened, the liquid medicine at the end part of the conical section is suspended and fixed, the annular sealing gasket is reset and is in sealing fit with the conical section, the air rapidly flows back to the liquid outlet in the low-pressure state, the air can gather towards the center of the water film in the backflow process, the air touches the conical section of the liquid dropping column and then flows downwards along the conical section, and the liquid medicine attached to the conical section and the liquid medicine suspended at the end part of the conical section is pushed away from the conical section.
Further, the residual liquid removing structure in the eye drop dropper and the residual liquid removing method thereof are characterized in that the liquid outlet is in a conical shape with a large upper part and a small lower part.
Further, the residual liquid removing structure in the eye drop dropping device and the residual liquid removing method thereof are characterized in that the distance between the end part of the conical section of the dropping liquid column and the top of the dropping liquid shell is 1-2.5 mm.
Further, in the residual liquid removing structure and the residual liquid removing method in the eye drop dropper, the annular sealing gasket and the drop shell are integrally formed by injection molding.
Further, the inner ring in the annular sealing gasket is in a conical shape, and the taper of the wall of the inner ring is the same as that of the conical section.
The invention has the advantages that: after accomplishing the dropping liquid, only need loosen the bottle and just can push away from the toper section with attached to the liquid medicine water film on the toper section of dropping liquid column and the liquid medicine that hangs at the toper section tip, instil into user's eyes, can not cause the waste, can make the toper section of exposing in the air keep dry moreover, just so be difficult to breed the bacterium.
Drawings
Fig. 1 is a schematic sectional view showing a structure of a residue removing liquid in an eye drop dispenser according to the present invention.
Fig. 2 is a schematic structural view illustrating that the liquid medicine in the residual liquid removing structure in the eye drop dropper of the present invention expels air from the liquid outlet.
Fig. 3 is a schematic structural view of the air flowing back into the liquid outlet in the residue removing structure of the eye drop dropper according to the present invention to push the liquid medicine at the end of the tapered section away from the tapered section.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, the residue removing structure of the eye drop dropper of the present invention comprises: bottle 1, dropping liquid shell 2, dropping liquid post 3, the sealed 4 of pad of annular, dropping liquid shell 2 links to each other with bottle 1, and central point at dropping liquid shell 2 puts the department and is provided with the runner 21 that runs through dropping liquid shell 2, is provided with the liquid outlet 22 that the bore is greater than runner 21 diameter at the top of runner 21, liquid outlet 22 is the little toper shape in big-end-up, is provided with the sealed 4 of pad of annular in the department of linking to each other of liquid outlet 22 and runner 21, and the sealed 4 of pad and dropping liquid shell 2 of annular are integrative injection moulding, and integrative injection moulding just can prevent that the sealed 4 of pad of annular from taking place not hard up and leading to sealed effect poor with dropping liquid shell 2. A drip column 3 is provided in the flow passage 21 of the drip housing 2, the drip column 3 including: the T-shaped section 31 is connected with the flow channel 21, the conical section 32 is connected with the top of the T-shaped section 31, the conical section 32 penetrates through the annular sealing gasket 4 and the liquid outlet 22 and then extends outwards out of the dropping liquid shell 2, and the distance between the end part of the conical section 32 of the dropping liquid column 3 and the top of the dropping liquid shell 2 is 1-2.5 mm. The inner circle of the annular seal gasket 4 is sealed with the lateral wall of toper section 32 and is laminated, the inner circle in the annular seal gasket 4 is the toper shape, the tapering of inner circle wall is the same with the tapering of toper section 32, just so can improve the contact surface between the annular seal gasket 4 and the toper section 32, thereby improve sealed effect, it has a plurality of guiding gutters 33 to follow the circumference equipartition on dropping liquid post 3, the bottom opening of guiding gutter 33 is located the diapire of T type section 31, the open-top of guiding gutter 33 is located the toper section 32 of the annular seal gasket 4 below.
The residual liquid removing method of the residual liquid removing structure in the eye drop dropping device comprises the following steps: the liquid dropper is vertically inverted to extrude the bottle body 1, the liquid medicine in the bottle body 1 enters the flow channel 21 and flows downwards along the flow guide groove 33 on the liquid drop column 3, at the moment, the liquid medicine is collected on the annular sealing gasket 4 and pushes downwards the annular sealing gasket 4, the annular sealing gasket 4 moves downwards after receiving double top thrust of air and the liquid medicine in the bottle body 1 and does not form sealing with the conical section 32 of the liquid drop column 3, the liquid medicine flows downwards along the conical section 32 and is converged at the end part of the conical section 32 to form liquid drops to drip downwards, in the process, the liquid medicine extrudes air in the liquid outlet 22 when passing through the liquid outlet 22, and the liquid outlet 22 is in a low-pressure state, as shown in fig. 2. Then the bottle body 1 is loosened, the liquid medicine at the end part of the conical section 32 is suspended immovably, the annular sealing gasket 4 is reset to be in sealing fit with the conical section 32, air rapidly flows back to the liquid outlet 22 in a low-pressure state, the air gathers towards the center of the liquid outlet 22 in the backflow process, the air touches the conical section 32 of the dropping liquid column 3 and then excites an air wave downwards, the air wave flows downwards along the conical section, and then the liquid medicine water film attached to the conical section 32 and the liquid medicine suspended at the end part of the conical section 32 are pushed away from the conical section 32, as shown in fig. 3.
The related principle uses for reference the hydromechanics phenomenon that a heavy object splashes water after falling into water, and the hydromechanics phenomenon is as follows: after the heavy object falls into the aquatic, the heavy object destroys the surface tension of water and sinks, and the heavy object can be earlier extruded all around at the in-process that sinks, makes water form a more stable cavity around the heavy object, and when the heavy object continued to drop downwards, water all around no longer received the extrusion force and will gush into the cavity fast, and the water of gushing into continues to flow toward the center department of cavity after filling up the cavity, until the collision takes place in center department, and water bump and arouse a toper splash directly over. Since air and water both belong to fluids, the fluid mechanics phenomenon between water and air can be used for reference.
When the bottle body 1 is squeezed, liquid medicine flowing outwards along the dropping liquid column 3 passes through the liquid outlet 22, which is equivalent to that a heavy object falls into water, the liquid medicine expels a part of air in the liquid outlet 22, the liquid outlet 22 is in a low-pressure state, the liquid outlet 22 in the low-pressure state is equivalent to a cavity formed in the water, the bottle body 1 is loosened, no liquid medicine flows out, air quickly flows back into the liquid outlet 22 in the low-pressure state, which is equivalent to that the water quickly flows into the cavity, when the air flows back into the liquid outlet 22, the annular sealing gasket 4 is reset to be in sealing fit with the conical section 32 of the dropping liquid column 3, the air only can flow in the liquid outlet 22, the air continuously flows towards the center like the water after the liquid outlet 22 is filled with the water, only the air is blocked by the dropping liquid column 3 located at the central position of the liquid outlet 22, the air collides with the dropping liquid column 3 and then excites an air wave downwards, and the air wave flows downwards along the conical section 32 of the dropping liquid column 3.
Set liquid outlet 22 to big-end-up's toper shape, when the air flows back to liquid outlet 22 in, the toper inside wall of liquid outlet 22 can let the air produce the vibration, and the air is flowing toward the toper section 32 direction of dropping liquid post 3 on the limit of vibration, and the air vibration more is favorable to getting rid of the remaining liquid medicine on the toper section 32.
The distance between the end part of the conical section 32 of the liquid dropping column 3 and the top part of the liquid dropping shell 2 is controlled to be 1-2.5 mm, if the end part of the conical section 32 is positioned in the liquid outlet 22, the liquid medicine hung at the end part of the conical section 32 is easy to block the liquid outlet 22, and after the bottle body 1 is loosened, the liquid medicine hung at the end part of the conical section 32 interferes with the backflow condition of air, so that the automatic residual liquid removal cannot be realized; if the end of the conical section 32 protrudes too far from the drip housing 2, the air wave formed by the return air in the liquid outlet 22 flows to the end of the conical section 32, so much energy is lost and the remaining energy is not enough to push the liquid medicine suspended at the end of the conical section 32 away from the conical section 32. Therefore, the distance between the end part of the conical section 32 of the dripping column 3 and the top part of the dripping shell 2 is controlled to be 1-2.5 mm, so that the liquid outlet 22 can be prevented from being blocked by the liquid medicine, and the air wave formed by the air flowing back into the liquid outlet 22 has enough energy to push away the liquid medicine suspended at the end part of the conical section 32.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (5)
1. A residual liquid removing structure in an eye drop dropper and a residual liquid removing method thereof are characterized in that: the method comprises the following steps: bottle, drip shell, drip column, annular are sealed fills up, and the drip shell links to each other with the bottle, and the central point of putting at the drip shell department of locating is provided with the runner that runs through the drip shell, is provided with the liquid outlet that the bore is greater than the runner diameter at the top of runner, is provided with annular sealing pad in the department of linking to each other of liquid outlet and runner, is provided with the drip column in the runner of drip shell, the drip column includes: the liquid dripping column is provided with a T-shaped section connected with the flow channel and a conical section connected with the top of the T-shaped section, the conical section extends outwards after penetrating through the annular sealing gasket and the liquid outlet and then extends out of the liquid dripping shell, the inner ring of the annular sealing gasket is in sealing fit with the outer side wall of the conical section, a plurality of flow guide grooves are uniformly distributed on the liquid dripping column along the circumference, the bottom openings of the flow guide grooves are positioned on the bottom wall of the T-shaped section, and the top openings of the flow guide grooves are positioned on the conical section below the annular sealing gasket;
the residual liquid removing method of the residual liquid removing structure in the eye drop dropping device comprises the following steps: the liquid dropping device is vertically inverted, the bottle body is extruded, liquid medicine in the bottle body enters a flow channel and flows downwards along a flow guide groove on a liquid dropping column, at the moment, the liquid medicine is collected on an annular sealing gasket and pushes the annular sealing gasket downwards, the annular sealing gasket can move downwards after receiving double top thrust of air and the liquid medicine in the bottle body and does not form sealing with a conical section of the liquid dropping column any more, the liquid medicine flows downwards along the conical section and is converged to the end part of the conical section to form liquid drops to drip downwards, in the process, the liquid medicine is extruded out of air in the liquid outlet when passing through the liquid outlet, the liquid outlet is in a low-pressure state, then the bottle body is loosened, the liquid medicine at the end part of the conical section is suspended and fixed, the annular sealing gasket is reset and is in sealing fit with the conical section, the air rapidly flows back to the liquid outlet in the low-pressure state, the air can gather towards the center of the water film in the backflow process, the air touches the conical section of the liquid dropping column and then flows downwards along the conical section, and the liquid medicine attached to the conical section and the liquid medicine suspended at the end part of the conical section is pushed away from the conical section.
2. The structure and method of removing residual liquid in an eye drop dropper of claim 1, wherein: the liquid outlet is in a conical shape with a large upper part and a small lower part.
3. The structure and method for removing residue in an eye drop dropper of claim 2, wherein: the distance between the end of the conical section of the drip column and the top of the drip shell is 1-2.5 mm.
4. The structure and method of removing residue in an eye drop dropper of claim 1, 2 or 3, wherein: the annular sealing gasket and the dropping liquid shell are integrally formed by injection molding.
5. The structure and method of claim 4, wherein the structure comprises: the inner ring in the annular sealing gasket is in a conical shape, and the conicity of the wall of the inner ring is the same as that of the conical section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127539.4A CN115531082A (en) | 2022-09-16 | 2022-09-16 | Residual liquid removing structure in eyedrop dropping device and residual liquid removing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127539.4A CN115531082A (en) | 2022-09-16 | 2022-09-16 | Residual liquid removing structure in eyedrop dropping device and residual liquid removing method thereof |
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| Publication Number | Publication Date |
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| CN115531082A true CN115531082A (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211127539.4A Pending CN115531082A (en) | 2022-09-16 | 2022-09-16 | Residual liquid removing structure in eyedrop dropping device and residual liquid removing method thereof |
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| CN (1) | CN115531082A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116172866A (en) * | 2023-04-24 | 2023-05-30 | 张家港众辉医用塑料科技有限公司 | Liquid dropping device with bacteria-blocking and residual liquid-free functions and use method thereof |
| CN117582335A (en) * | 2024-01-18 | 2024-02-23 | 张家港众辉医用塑料科技有限公司 | Anti-blocking sterile dropping head in eyedrop dropping bottle |
| CN118001152A (en) * | 2024-04-03 | 2024-05-10 | 张家港众辉医用塑料科技有限公司 | Sterile liquid-dripping head capable of pre-treating return air and residual liquid medicine |
-
2022
- 2022-09-16 CN CN202211127539.4A patent/CN115531082A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116172866A (en) * | 2023-04-24 | 2023-05-30 | 张家港众辉医用塑料科技有限公司 | Liquid dropping device with bacteria-blocking and residual liquid-free functions and use method thereof |
| CN117582335A (en) * | 2024-01-18 | 2024-02-23 | 张家港众辉医用塑料科技有限公司 | Anti-blocking sterile dropping head in eyedrop dropping bottle |
| CN117582335B (en) * | 2024-01-18 | 2024-04-02 | 张家港众辉医用塑料科技有限公司 | Anti-blocking sterile dropping head in eyedrop dropping bottle |
| CN118001152A (en) * | 2024-04-03 | 2024-05-10 | 张家港众辉医用塑料科技有限公司 | Sterile liquid-dripping head capable of pre-treating return air and residual liquid medicine |
| CN118001152B (en) * | 2024-04-03 | 2024-06-14 | 张家港众辉医用塑料科技有限公司 | Sterile liquid-dripping head capable of pre-treating return air and residual liquid medicine |
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